Substance Abuse Paper - 1450 Words

Over the years substance abuse has been on the rise with many people falling victims. This paper concentrates on substance abuse and addictive disorders in the African American population. When it comes to the scope of the problem regarding the extent to which it affects the people, depression, poverty, and stress is closely connected to alcohol abuse and appears to be the same for both men and women (American Psychological Association, 2000). The National Institutes of Health (NIH) reports that the risks of substance abuse, its consequences, treatment, and recovery differ by gender, race, ethnicity, sexual orientation, and age. The chances for substance abuse are best understood when the conditions and influences are recognized as†¦show more content†¦Government assistance is needed to help low-income women out of their current situations. Research has found that while stress contributes to alcoholism, a positive social support can prevent alcohol abuse from taking plac e (Mulia, Schmidt, Bond, Jacobs, Korcha, 2008). African Americans represent 12 percent of the U.S. population, and more than half are women, and about 35 percent of those women live in poverty (U.S. Census Bureau, 2000). There are various patterns when it comes to drinking and alcohol addiction. Trends in alcohol use among African-American women show four percent of women aging from 19 to 29 years of age consume alcohol daily, while women ages 40 to 49 have the highest intake of alcohol consumption for women. Even though admissions to substance abuse treatment centers, among African Americans, have declined over the past twenty-seven years, African-American women continue to make up 25 percent of the center’s population. Although, patterns for the African American culture show that low-income men are at the highest risk for alcohol abuse (SAMHSA, 2015). According to the article, Less Drinking, yet More Problems: Understanding African American Drinking and Related P roblems Compared to European Americans, African Americans are more likely to live in poverty, be unemployed, and lack educational skill, than other Americans. Financial difficulty puts the African American culture at a disadvantage where theirShow MoreRelatedVulnerable Populations Paper: Substance Abuse1842 Words   |  8 PagesVulnerable Populations Paper: Substance Abuse Substance abuse disorders is easily defined when an â€Å"individual continues to use the substance despite experiencing negative consequences from their use. These negative consequences can include health problems; difficulties in their family, work, and social life; and financial and legal problems. 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Public Toilet Free Essays

G answer B F A 1) J I C E D 2) Cycle Time (CT) = Productive time per hour Output per day = 7 hrs. /day X 60 min/hr X 60 sec/min 1008 units/day = 25,200 sec 1008 units = 25 sec/unit 6 5 4 3 2 1 3) Workstation = J I G H F E C D B A Task Time 24 25 25 25 25 24 Idle Time = 1 0 0 0 0 1 ( Total = 2 sec ) 4) WS = Sum of task times Cycle time (CT) = 148 sec 25 sec/units = 5. 2 ? 6 units of WS 5) Efficiency = Sum of task times X 100% CT * Actual # of (WS) = 148 sec * 100 % ( 25 sec/units * 4 units of WS) = 98. We will write a custom essay sample on Public Toilet or any similar topic only for you Order Now 67 % ) Idle time per units = (CT * actual # of WS) – sum of task times = (25 sec/unit X 6 units of WS) – 148 seconds = 2 sec/units Idle time in seconds per day = idle time per units X output per day (in unit) = 2 sec/unit X 1008units/day = 2016 sec/day Idle time in hour per day = Idle time in seconds per day 60 min/hr X 60 sec/min = 2016 sec/day 60 min/hr X 60 sec/min = 0. 56 hr/day Thus, The cost of idleness per week = Idle time in hour per day X wage rate per hour X # working day per week = 0. 56 hr/day X RM 40 per day = RM 22. 40 per week QUESTION 4 Claytan Fine China, a well-known dinner ware producer has upgraded its moulding procedure by using the most sophisticated equipment. The mouding process consists of 10 elements. The following table shows the task element in alphabetical order and their precedence element task(s) and times in seconds. Task Element| Precedence Task| Task Time (seconds)| A| -| 24| B| A| 25| C| A| 13| D| -| 10| E| C, D| 12| F| B, E| 11| G| B| 15| H| -| 14| I| F,G. H| 10| J| I| 24| 1. Draw a precedence diagram 2. If the expected weekly output is 5040 dinner sets and daily productive time is 7 hours (in a 5 day work-week), compute the cycle for the process. 3. Compute the theoretical number of workstations. 4. Arrange the task element into proper workstations by using the longest task-time heuristic/rule. 5. Calculate the efficiency of the balanced line and balance delay. 6. If the wage rate is RM 40 per day, calculate the idleness cost per week. QUESTION 8 Hakim Bidaman Enterprise is in the process of developing an aggregate capacity plan for the month of Jan-Sept 2010. The company has gathered the data as shown in the following table: MONTH| Jan| Feb| Mar| Apr| May| Jun| Jul | Aug| Sept| Forecast Demand (unit)| 5000| 4900| 4500| 4200| 6300| 5000| 5100| 4800| 4700| Other information to be considered: 1. Each output requires 26 minute to be produced. 2. Labour cost per hour is RM 5. 00 3. Overtime rate per hour is RM 7. 50 4. Overtime given to 4 workers only with a limitation of 2 hours per day. 5. Beginning inventory is 400 units. . The inventory carrying cost is RM 2. 40 per unit. 7. Hiring cost per worker is RM 400 and lay off cost per worker is RM 600 8. Subcontracting cost is RM 20 per unit. 9. Current workforce level is 10 workers. 10. The company operates 8 hours daily in 26 days a month. Determine the production cost for the planning horizon by using all five strategies. Apply information given as necessary for a cert ain strategy. ANWER STRATEGY 1 Monthly forecast output = number of day per monthly X daily standard output = 26 days (60 minutes/hr ? 6 minutes/unit X 8 hours/day) = 480 units per worker per month MONTH| FORECASTDEMAND (UNIT)=UNIT PRODUCED| CURRENT WORKER| WORKERS REQUIRED| HIRE| LAY OFF| Jan| 5000 – 400 = 4600| 10| 4600/480 = 10| | | Feb| 4900| 10| 4900/480 = 10| | | Mar| 4500| 10| 4500/480 = 9| | 1| Apr| 4200| 9| 4200/480 = 9| | | May| 6300| 9| 6300/480 = 13| 4| | Jun| 5000| 13| 5000/480 = 10| | 3| Jul| 5100| 10| 5100/480 = 11| 1| | Aug| 4800| 11| 4800/480 = 10| | 1| Sept| 4700| 10| 4700/480 = 10| | | | 44100| | | 5| 5| TOTAL PRODUCTION COST Regular production cost = (44100 units) X (RM5/hr) X (26 minute/unit ? 0 minute/hr) = RM 95,550 Hire worker = (5 worker) X (RM400) = RM 2,000 Lay off worker = (5 worker) X (RM600) = RM 3,000 Thus, total cost = RM 100,500 STRATEGY 2 Units Produced = (number of day per monthly) X (working days per pe daily) X (standard output per day) = (10 worker) X (26 day) X (60 minutes/hr ? 26 minutes/unit X 8hr) = 4800 units MONTH| FORECAST DEMAND (UNIT)| UNIT PRODUCED| UNITEXCESS| UNIT SHORTAGE| OTUNITS| ENDINV| Jan| 5000 – 400 = 4600| 4800| 200| | | 200| Feb| 4900| 4800| | 100| 100| | Mar| 4500| 4800| 300| | | 300| Apr| 4200| 4800| 600| | | 600| May| 6300| 4800| | 1500| 1500| | Jun| 5000| 4800| | 200| 200| | Jul| 5100| 4800| | 300| | 300| Aug| 4800| 4800| | -| -| -| Sept| 4700| 4800| 100| | | 100| | | 43200| | | 1800| 1500| TOTAL PRODUCTION COST Regular Production Cost = (43200 units) X (26 days ? 8 hr) X (26 minute/unit ? 60 minute/hr) = RM 60,840 Overtime Cost (1800 unit) X (RM7. 50/hr) X (26 minute/unit ? 60 minute/hr) = RM 5,850 Inv. Holding Cost = (1500 unit) X (RM2. 40 per unit) = RM 3,600 Thus, total cost = RM 70,290 STRATEGY 3 Units Produced = (number of day per monthly) X (working days per pe daily) X (standard output per day) = (10 worker) X (26 day) X (60 minutes/hr ? 26 minutes/unit X 8hr) = 4800 units MONTH| FORECAST DEMAND (UNIT)| UNIT PRODUCED| UNITEXCESS| UNIT SHORTAGE| OTUNITS| ENDINV| Jan| 5000 – 400 = 4600| 4800| 200| | | 200| Feb| 4900| 4800| | 100| | 100| Mar| 4500| 4800| 300| | | 300| Apr| 4200| 4800| 600| | | 600| May| 6300| 4800| | 1500| 900| | Jun| 5000| 4800| | 200| 200| | Jul| 5100| 4800| | 300| 300| | Aug| 4800| 4800| -| -| -| -| Sept| 4700| 4800| 100| | | 100| | | 43200| | | 1400| 1300| TOTAL PRODUCTION COST Regular Production Cost = (43200) X (RM5/hr) X (26 minute/unit ? 0 minute/hr) = RM 93,600 Overtime Cost = (1400 units) X (RM5/hr) X (26 minute/unit ? 60 minute/hr) = RM 3,033 Inv. Holding Cost = (1300 units) X (RM2. 40 per unit) = RM 3,120 Thus, total cost = RM 99, 753 STRATEGY 4 Units Produced = (number of day per monthly) X (working days per pe daily) X (standard output per day) = (10 worker) X (26 day) X (60 minutes/hr ? 26 minutes/unit X 8hr) = 4800 units MONTH| FORECAST DEMAND (UNIT)| UNIT PRODUCED| UNITEXCESS| UNIT SHORTAGE| OTUNITS| ENDINV| Jan| 5000 – 400 = 4600| 4800| 200| | | 200| Feb| 4900| 4800| | 100| | 100| Mar| 4500| 4800| 300| | | 400| Apr| 4200| 4800| 600| | | 1000| May| 6300| 4800| | 1500| 1500| | Jun| 5000| 4800| | 200| 200| | Jul| 5100| 4800| | 300| 300| | Aug| 4800| 4800| -| -| -| -| Sept| 4700| 4800| 100| | | 100| | | 43200| | | 1000| 1800| TOTAL PRODUCTION COST Regular production cost = (43200) X (RM5/hr) X (26 minute/unit ? 0 minute/hr) = RM 93,600 Overtime Cost = (1000 units) X (RM7. 50/hr) X (26 minute/unit ? 60 minute/hr) = RM 3,250 Inv. Holding Cost = (1800 units) X (RM2. 40 per unit) = RM 4,320 Thus, total cost = RM 101,170 STRATEGY 5 Units Produced = (number of day per monthly) X (working days per pe daily) X (standard output per day) = (10 worker) X (26 day) X (60 minutes/hr ? 26 minutes/unit X 8hr) = 4800 units MONTH| FORECAST DEMAND (UNIT)| UNIT PRODUCED| UNITEXCESS| UNIT SHORTAGE| OT UNITS(max=480Unit)| ENDINV| SUBUNIT| Jan| 5000 – 400 = 4600| 4800| 200| | | 200| | Feb| 4900| 4800| | 100| | 100| | Mar| 4500| 4800| 300| | | 400| | Apr| 4200| 4800| 600| | | 1000| | May| 6300| 4800| | 1500| 480| | 20| Jun| 5000| 4800| | 200| 200| | | Jul| 5100| 4800| | 300| 300| | | Aug| 4800| 4800| -| -| -| -| | Sept| 4700| 4800| 100| | | 100| | | | 43200| | | 980| 1800| 20| Overtime unit max = 4 X 2 X 26 per month ? 6 month/unit X 60 minute/unit = 480 units TOTAL PRODUCTION COST Regular Production Cost = (43200) X (RM5/hr) X (26 minute/unit ? 60 minute/hr) = RM 93,600 Overtime Cost = (980 units) X (RM7. 50/hr) X (26 minute/unit ? 60 minute/hr) = RM 3,185 Inv. Holding Cost = (1800 units) X (RM2. 40 per unit) = RM 4,320 Subcontracting Cost = (20 units) X (RM20 per unit) = RM 400 Thus, total cost = RM 101,505 How to cite Public Toilet, Essay examples

Popcorn and Brand free essay sample

Research Paper In this scientific experiment and in my research through five different brands being tested that Act II of stovetop popcorn kernels is the best brand based on its popped volume and taste. I chose this experiment because even though it is not the healthiest of snacks out there it is one of my favorites and I eat it almost everyday so I might as well get to know it a little better and do an experiment with it. I am very interested in which brands have a better quality of kernels and the many different tastes that come with them too. Cooking popcorn in the microwave isn’t as much fun as it is on the stove too, I enjoy when it pops out of the pot and I always try to time it right to see when they start popping and it is also helpful to know which brands pop faster and how and why they do based on their color, or size, or the temperature they are ready to pop at. There are some questions I have asked myself in order to put together this whole experiment and my hypothesis. How does the color of some popcorns affect how long it takes them to cook or be popped and why the different colors affect them? Which brand could possibly be cooked the fastest and taste the best based on the same exact ingredients added to every different brand and cooked the same way? Which brand perhaps could be the healthiest one to eat rather then the worst one for you with the same ingredients added? Which brand gets the most kernels popped out of the batch cooked at the same exact time and temperature used in all experiments? Which brand of popcorn based of all variables of the brands comes out the best cooked due to the same procedures in each? The brand that I think is the best brand based on its taste and volume is Act II brand without the comparison to the other brands based on the same experiment done to each. Each test subject will be done with the same amount of time and ingredients added to each procedure. The five brands of popcorn I will be using in this experiment are Pop secret(butter), Act II, Orville, Newman’s Own, and Jiffy Pop. The ingredients that will be used in this experiment are 3 tablespoons of canola oil, 1/3 cup of kernels, 1 3-quart pot with a lid, 2 tablespoons of butter that’s melted, and 2 teaspoons of salt. All of these will be added to each one of the popcorns specifically according to how the directions I followed and are all done the exact way. The ways all of these popcorns are cooked are followed by this specific order of directions I used for them all. First you preheat the 3 tablespoons of oil in the pot on a medium temperature and add 3 kernels in and then cover the pan. When the three pop add the rest of the 1/3 popcorn, also add the 2 teaspoons of salt into the pot and cover it and remove it from the heat and count to 30. This method heats the oil to the right temperature then when you count to 30 it brings the kernels to a near popping temperature but they cannot fully pop yet because they need more heat. After the 30 seconds put the pot back on the heat and keep the lid a little ajar to keep the steam out and they should all be popping at about the same time, while popping add the 2 tablespoons of butter and shake gently to get it to mix around. Once popping slows to about 6 seconds between pops take off lid and dump the popcorn into a bowl and then count the kernels, taste the popcorn, and test the volume. To do this scientific experiment I had a total of 10 tasters who do not eat kernels and 5 popcorn products used. Each of the tasters tasted each type of popcorn that was cooked equally, with equal additives. The very first popcorn I started with and made was the Pop secret (butter) popcorn. 3 out of 10 people preferred this popcorn because of the way it tastes and how it came out. One of my tasters said â€Å"it has a great popcorn flavor taste and was crunchy, but soft at the same time and it came out wider after popped than the other brands of popcorn. † The two others preferred this brand because of the buttery taste which it was already butter flavored but when we cooked this we also added butter giving it an enhanced butter taste which of course makes it taste way better. Out of the 1/3 of the cup of kernels added to be popped only 3 kernels were counted not popped in the bowl, and the rest were all popped corn. This brand when popped also has a yellowish color to its popcorn. Most of the kernels popped in this brand and that’s a good outcome if you are trying to make popcorn, you’ll get more out of what you put in and people usually do not like the kernels and wind up throwing them out anyway. The second brand of popcorn I used in this experiment was the brand Act II popcorn. 3 out of 10 people preferred this brand because of a lot of different reasons. My testers said, †this popcorn has great taste when cooked and it tastes perfect with the additive amount of butter we used because it’s not to much or to little considering it already has a hint of butter flavor. â€Å"We also love the color it came out as, how thick it came out popped as with a greater volume of size. † This brand when pops comes out thicker and bigger popped corn, and is crunchy but soft at the same time. It has a hint of yellowish look to it that gives it that buttery look therefore it will definitely taste good and looks good. After pouring this batch of popcorn into the bowl we counted only 4 kernels that were not popped, which means most of these kernels popped and hardly any of it will not go to waste do to my testers who don’t eat kernels. The third brand of popcorn used in my experiment was Orville popcorn. Only 2 out of 10 people preferred this brand of popcorn. My two testers gave about the same explination as to why they liked this brand better and they said tester said â€Å"it is a slightly sweet tasting popcorn and they like the texture of it because it is more thinner then the other 4 brands. † It is a more natural popcorn flavor and kernel so when popped these popcorn comes out a white color rather then a yellowish but it has more of a duller flavor besides the tiny bit of sweet in it. After we had cooked this brand of popcorn and poured it in the bowl we found that 11 kernels did not pop out of the 1/3-cup of kernels added. The other tasters did not enjoy this popcorn as much as the other two yellowish looking popcorns because of the taste and how many kernels were left over after cooked. The fourth brand used in my experiment was Newman’s Own popcorn. Only 1 out of 10 of my testers preferred this brand for a couple of specific reasons. My tester said, â€Å" I prefer my popcorn a more whiter less buttery popcorn, not to crunchy but more soft and thinner. † This popcorn came out a lot more white colored than the rest of the 4 other brands and it did not absorb much of the butter added when it was being made. After it was cooked and poured into the bowl there was 15 kernels counted that weren’t popped out of the 1/3 cup of kernels added. Many were left not popped and this brand of popcorn definitely didn’t have a sweet taste or buttery taste at all to it, mostly bland flavored. The fifth and final brand of popcorn used in my experiment was Jiffypop popcorn. Out of the 10 people that tested this only 1 enjoyed it rather then the other 4 brands. My tester said â€Å" it had a sweet taste, it was more thin and at the same time soft with crunch and it is better with more ingredients added to it rather then just plain. † This popcorn after being popped came out to be a more white looking color and absorbed most of the butter added during the cooking process which gave it better taste. Out of the 1/3 cup of kernels added only 7 kernels were not popped in this batch, which was less than the other two white popcorns but still higher then the ones that came out to be a yellow color. This brand only had one vote from my testers only because of the additives used during the cooking process I think, because if it wasn’t for that I think it would have been just dull and bland with not a good taste at all, so normal this would have been the least popular popcorn made. For this experiment on my 5 different brands of popcorn I used the same exact ingredients and cooked the popcorn the same time, as the 10 testers that tested each of popcorn and were the same people. I thought that before doing this experiment that there would be a much more different outcome then there was but the outcome is still related to my hypothesis greatly. One of the major outcomes of this experiment was I thought that Act II popcorn brand was the best and it turns out that the brand Popsecret had a tie with my favorite brand which I thought would be preferred without a doubt. I thought that the more yellowish looking popcorns would take the most preferred title and they did because they look more buttery and taste better due to that of how they actually taste when a yellowish flavor and by the way they look you just know a piece of yellow popcorn is going to taste better than a white one according to how your brain works and your body. I thought that the three whitish looking popcorns that were actually the 3 most least preferred were not going to be liked as much and they weren’t. The other 3 brands that were white such as Orville, Newman’s Own, and Jiffy Pop, didn’t have as much flavor than the other two and had the most kernels left over after placed in a bowl. These three came out with less pop and were more thinner and softer then the two favorite. A good side about these three white colored popcorns though is they had a little more of a sweet tasting flavor rather then buttery, which would be loved by people who enjoyed a sweeter taste. My hypothesis is confirmed because out of the 5 brands Act II had 3 out of 10 votes, it was in a tie with Popsecret popcorn with the most preferred but Act II popcorn also had the most compliments due to its taste, size, color, and its volume. It had a low kernel count leftover after it was done cooking and was overall the best popcorn. I confirmed my hypothesis and it is a true outcome because of the experimentation information that was recorded and told to me. My hypothesis was accurate because I believed that Act II brand popcorn was the best because its my favorite and I always eat it and after being tested by other people and preferred by them too based of its size, flavor, volume, and color I can say that I was accurate to my hypothesis through experimentation rather then just what I think is good. In my research it was very beneficial in a lot of different ways for my testers and me. I got to taste other brands of popcorn and so did my testers that we did not have before. It was a lot of fun for me and everyone I did this experiment with. My favorite brand of popcorn was most preferred from other people too. My research helped me have a better understanding in 5 different brands of popcorn and the quality of the brands. I usually eat popcorn that has to be microwaved and that is way worse for you do to the radiation and unnatural cooking but I got to use the stove and learn how to cook popcorn on it good. My experiment wasn’t unbeneficial in anyway I thought everything about it I learned a lot from and so did others. With this experiment I conducted I was definitely able to find sufficient research on it. The research that I made a list of and how I recorded everything that happened during each experiment widened my focus with the topic. Everything that I had recorded helped me understand each brand better from either cooking it or taking information down by asking my testers what they think about that certain type of popcorn. All of the qualities of each popcorn brand were recorded and each was specifically described, such as their own volume, size, taste, texture and their color. I think all of this information broadens my regard for this topic because it gives me and other people a better understanding of each of these 5 brands of these popcorns qualities. My research also helps because it shows how many kernels were popped in the different brands and gives us a good idea of how many people would like the certain brands, the more popular brands, and most purchased. The available research that I had taken down and recorded was not insuffient and was very helpful to me quality wise and quantity. I got all I needed to know out of this experiment from the 5 brands of popcorn I used and the 10 testers that helped me do this experiment. It was a successful experiment and the method I used was a success also, and It helped me come to a good and correct conclusion with my hypothesis. During this experiment I relied on fewer than three primary resources, which was my brands of popcorn and my testers, so I had two primary resources available. There were both resulting advantages and disadvantages in this experiment. Some advantages in my research were I got to find out the best tasting popcorns and the most preferred according to myself and others who tested the different brands out. Another positive is I recorded the kernels popped so I can see what batch ill get the most popped popcorn out of when it is cooked. What is also recorded is the taste, texture, the way it crunches, and the sweetness of the different brands of popcorn. There were also some disadvantages with this experiment as well. One of those disadvantages could be that maybe one of the testers had a specifically favorite brand and only chose that one because it’s the one that they would most prefer because everyone has different taste and likes different things, so it may not be fully accurate. Another downside of this experiment could be that maybe if I cooked the different brands for a little longer all of the kernels could have been popped but I used the same exact method for each to make the experiment equal. More advantages to this experiment then there were disadvantages and my research recorded helped a lot.

Tycho Brahe Essays - Copernican Revolution, Tycho Brahe,

Tycho Brahe Tycho Brahe Tyge (Latinized as Tycho) Brahe was born on 14 December 1546 in Skane, then in Denmark, now in Sweden. He was the eldest son of Otto Brahe and Beatte Bille, both from families in the high nobility of Denmark. He was brought up by his paternal uncle J?rgen Brahe and became his heir. He attended the universities of Copenhagen and Leipzig, and then traveled through the German region, studying further at the universities of Wittenberg, Rostock, and Basel. During this period his interest in alchemy and astronomy was aroused, and he bought several astronomical instruments. In 1572 Tycho observed the new star in Cassiopeia and published a brief tract about it the following year. In 1574 he gave a course of lectures on astronomy at the University of Copenhagen. He was now convinced that the improvement of astronomy hinged on accurate observations. After another tour of Germany, where he visited astronomers, Tycho accepted an offer from the King Frederick II to fund an observatory. He was given the little island of Hven in the Sont near Copenhagen, and there he built his observatory, Uraniburg, which became the finest observatory in Europe. Tycho designed and built new instruments, calibrated them, and instituted nightly observations. He also ran his own printing press. The observatory was visited by many scholars, and Tycho trained a generation of young astronomers there in the art of observing. After a falling out with King Christian IV, Tycho packed up his instruments and books in 1597 and left Denmark. After traveling several years, he settled in Prague in 1599 as the Imperial Mathematician at the court of Emperor Rudolph II. He died there in 1601. His instruments were stored and eventually lost. Tycho Brahe's contributions to astronomy were enormous. He not only designed and built instruments, he also calibrated them and checked their accuracy periodically. He thus revolutionized astronomical instrumentation. He also changed observational practice profoundly. Whereas earlier astronomers had been content to observe the positions of planets and the Moon at certain important points of their orbits. Tycho and his cast of assistants observed these bodies throughout their orbits. As a result, a number of orbital anomalies never before noticed were made explicit by Tycho. Without these complete series of observations of unprecedented accuracy, Kepler could not have discovered that planets move in elliptical orbits. Tycho was also the first astronomer to make corrections for atmospheric refraction*. In general, whereas previous astronomers made observations accurate to perhaps 15 arc minutes, those of Tycho were accurate to perhaps 2 arc minutes, and it has been shown that his best observations were accurate to about half an arc minute. Tycho's observations of the new star of 1572 and comet of 1577, and his publications on these phenomena, were instrumental in establishing the fact that these bodies were above the Moon and that therefore the heavens were not immutable as Aristotle had argued and philosophers still believed. The heavens were changeable and therefore the Aristotelian division between the heavenly and earthly regions came under attack (see, for instance, Galileo's Dialogue) and was eventually dropped. Further, if comets were in the heavens, they moved through the heavens. Up to now it had been believed that planets were carried on material spheres (spherical shells) that fit tightly around each other. Tycho's observations showed that this arrangement was impossible because comets moved through these spheres. Celestial spheres faded out of existence between 1575 and 1625. Tycho developed a system that combined the best of both worlds. He kept the Earth in the center of the universe, so that he could retain Aristotelian physics The Moon and Sun revolved about the Earth, and the shell of the fixed stars was centered on the Earth. But Mercury, Venus, Mars, Jupiter, and Saturn revolved about the Sun. He put the (circular) path of the comet of 1577 between Venus and Mars. This Tychonic world system became popular early in the seventeenth century among those who felt forced to reject the Ptolemaic arrangement of the planets (in which the Earth was the center of all motions) but who, for various reasons, could not accept the Copernican alternative. Tycho's major works include De Nova et Nullius Aevi Memoria Prius Visa Stella (On the New and Never

Financial Structures Domestic and Foreign

Financial Structures Domestic and Foreign Introduction While financing foreign and domestic projects, many options for financial structures may exist. A company would select a foreign investment project option based on the risks and costs that relate to the various available options. This short paper gives a synopsis of how financing a foreign project differs from financing a domestic project.Advertising We will write a custom essay sample on Financial Structures: Domestic and Foreign specifically for you for only $16.05 $11/page Learn More It presents the various short-term and long-term financing sources that are available in the international financial markets. Lastly, it gives some of the risks that come with the various financing options. How foreign project differs from domestic project Organizations that wish to invest in foreign nations design financial structures of a foreign project with the chief intention of scrutinizing the mechanisms for capitalizing domestic and foreign funds, the equ ities of one market, the debt of another, and short-term and long-term financing options of their chosen project. Project financing relies on the projected cash flows of the project, as opposed to the sponsors’ balance sheets (Hoffman, 2007, p.35). It entails financing structures that involve various equity investors (sponsors) together with a couple of bank syndicates and other lending organizations that offer loans to facilitate the operation of the project (Worenklein, 2003, p.8). The difference between domestic and foreign project financing is that financial institutions granting loans can be both domestic and international for the case of domestic financing. In the case of foreign financing, many domestic financial institutions shun from granting loans to fund foreign-based projects. Short-term and long-term financial sources There are several short-term and long-term financial sources that are available in the international financial markets to finance projects. On long -term basis, financial resources can come from capital markets, mutual funds, foreign sources, and or specific financing institutions (Giddy, 2012, p.5). Capital markets involve borrowing from banks, foreign markets, issuing of bonds, shares and debentures, and or from any international financial institutions such as the World Bank. On short-terms basis, finances can come from debt insurance, hybrid financing, and equity financing.Advertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More In the international financial markets, the most available means of acquiring finance is by borrowing from international financial institutions. Additionally, for the case of global companies, an organization can acquire finances through the issuance of bonds and shares in the international markets. Risks Associated with the Financing Options Although there are valid ways through which organization can obt ain finances in the international financial markets, each of the ways present some risks. Some of these risks are akin to the nature of the project finance in the international platforms. For instance, â€Å"project finance structures are exceedingly complex structures, which result in massive third-party upfront investments or deadweight costs in various legal processes, which are crucial for designing and preparing project ownership structure, loan documentation, and other contractual requirements† (Srivastava Kumar, 2010, p.9). Additionally, financial advisors who help in the process of financial structuring may charge fees ranging from 50 to 100 points (Brealey Myers, 2003, p.98). Since the organizations have to incur these costs during the process of project development, in case the projects turn out infeasible, they would not recover the costs. For this reason, some sources of project finances are unattractive. For instance, issuance of bonds and long-term loans from banks are risky in the sense that organization will have to pay any gains from loans and bonds after some specified period. Comparatively, raising finance from issuance of shares is less risky since organizations will have to pay constant dividends once the project becomes operational and or when there is an increase in the share value. Reference List Brealey, A., Myers, S. (2003). Principles of Corporate Finance. New York, NY: McGraw-Hill/Irwin.Advertising We will write a custom essay sample on Financial Structures: Domestic and Foreign specifically for you for only $16.05 $11/page Learn More Giddy, I. (2012). Project Financing. Web. Hoffman, S. (2007). The Law and Business of International Project Finance. Cambridge: Cambridge University Press. Srivastava, V., Kumar, A. (2010).Financing Infrastructure Projects in India from Corporate Finance to Project Finance. International Research Journal of Finance and Economics, 5 (5), 7-20. Worenklein, J. (2003). The Global Crisis in Power and Infrastructure: Lessons Learned and New Directions. The Journal of Structured and Project Finance, 3 (2), 7-11.

Books About African American Women and Feminist Theory

Books About African American Women and Feminist Theory Feminism in the 1960s and 1970s made a difference in the life of women in the United States, but the womens movement is often remembered as being too white. Many black feminists responded to the womens liberation movement and the cries of sisterhood with writings that critically analyzed the second wave of feminism or provided missing pieces of the puzzle. Here is a list of five important books about African-American feminism: Ain’t I a Woman: Black Women and Feminism by bell hooks (1981)The important feminist writer bell hooks responds to racism in the second-wave feminist movement and sexism in the Civil Rights movement. All the Women Are White, All the Blacks Are Men, But Some of Us Are Brave edited by Gloria T. Hull, Patricia Bell Scott and Barbara Smith   (1982)Racism, the feminist â€Å"sisterhood,† myths about women, Black consciousness, history, literature and theory combine in this interdisciplinary anthology. In Search of Our Mothers’ Gardens: Womanist Prose by Alice Walker (1983)A collection of nearly 20 years of Alice Walkers writing about the civil rights and peace movements, feminist theory, families, white society, black writers and the â€Å"womanist† tradition. Sister Outsider: Essays and Speeches by Audre Lorde (1984)An eye-opening collection about feminism, transformation, anger, sexism and identity from the marvelous poet Audre Lorde. Words of Fire: An Ant hology of African-American Feminist Thought edited by Beverly Guy-Sheftall   (1995)This collection includes the philosophies of black women from the 1830s through the turn of the 21st century. Sojourner Truth, Ida Wells-Barnett, Angela Davis, Pauli Murray and Alice Walker are just a few of the writers included.

Business Case Study Essay Example | Topics and Well Written Essays - 2000 words

Business Case Study - Essay Example The paper discusses the history of the Airline, strengths, weaknesses, opportunities and threats (SWOT), discusses an appropriate strategy that can be adopted by the airline to achieve growth. Southwest (2009) Southwest airline was formed in 1971 by Herb Kelleher and Rollin King, their main aim was to offer freights to customers at the lowest price possible and also make sure consumers arrived at their destinations on time. The company has expanded over the years and today the airline offers services to over seventy million consumers in a year. (Southwest (2009)) In 1979 the company introduced a self service ticket booking machine, this increased convenience to consumers. However in this year the airline could only offer services to 3 states, in 1983 the airline expanded and increased its destinations to over 34 cities. After the September 11 attack the airline still recorded a profit but its revenue declined by60%, in the following year the number of destinations increased to 58 cities. In 2004 the company was ranked as the fourth largest carrier given that the number of consumers per years had increased and the company had made profits for over 30 year in a row. (Southwest (2009)) Today the airline is still one of the best performing countries and its strategy has helped the company to achieve high growth and make profits over the years, the number of destinations have increased and due ... However a major problem is that other airlines have adopted the company's strategies and this has reduced its competitive position in the airline industry. (Southwest (2009)) B. SWOT analysis: This section discusses the strengths, weaknesses, opportunities and threats of Southwest airlines: Strengths: There are a number of internal strengths of the company, these strengths include: 1. Low fare prices: The company offers low fare prices, the low fare prices results into increased ticket demand; increased usage helps the company to realize economies of scale and therefore achieves high profits. 2. Online booking: The company has an advantage in that over 50% of booking are made online, it online booking services helps promote convenience to the customers. 3. unionized workers and flexible working hours: One in four employees of the company is a union member. However the company is still able to negotiate flexible working hours despite many employees being members of a union. (Robinson (2002)) Weaknesses: The company has a number of weaknesses and they include: 1. International freights: The company only offers services to a limited number of destinations, the company offers services to58 destinations only, it offers short distance freights and does not offer international freights that would help the company increase number of freights and revenue. (Robinson (2002)) 2. Boeing 737: The company only uses one product which is Boeing 7373 and this may be considered a major drawback to the company given that its reputation could be highly affected if the safety of such aircrafts is compromised. 3. Unionized workers: A large number of the company's employees are unionized, this affects the company given that negotiation regarding wages and working hours are done by a

Statement of Work Coursework Example | Topics and Well Written Essays - 250 words

Statement of Work - Coursework Example The outcome of the contract will increase the Fair attendance to an average of 287,000 attendants and enhance the positive image of the Fair. The contract seeks to provide carnival services to the Spokane interstate fair with operational carnival rides, games, five food sessions and novelty concessions. The contract should provide management expertise and the payment for the carnival services will be paid before September. The gross receipts will not include insurance fees and any applicable taxes. Additionally, the contractor will provide expertise in the content of the promotional programs so as to increase the attendance of the trade fair. The contract shall implement promotional programs designed to increase the attendance rate of the fair. The contractor will demonstrate a high level of expertise and allow the games, rides and shows open at all time The contractor shall abide by all the recommendations stipulated by Spokane Loss/Safety control Department. Moreover, prior to the opening of the Fair, all the concessions and ride shall be inspected by the Washington Department of

Elizabeth Gaskell and Industrialization Essay Example for Free

Elizabeth Gaskell and Industrialization Essay Two of Elizabeth Gaskell’s novels—North and South and Mary Barton—provide a critical insight into the author’s attempt at probing the issues surrounding industrialization in Victorian England. Apart from the fact that both novels feature female characters as protagonists, they also highlight the classic struggle between rich and poor classes in the face of an emerging industrial society. Without losing track of the flow of the stories’ plots, Gaskell is able to incorporate the vital aspects of industrialization. In North and South, Elizabeth Gaskell writes about the struggles of the urban working class in industrial England, specifically in its northern regions, during the 19th century in contrast to the lifestyles of those who live in the wealthier south. Because the story is shown from the perspective of the heroine, Margaret Hale, Gaskell is able to display the other side of the stereotypes attributed to women during the 19th century. For the most part, women at that time were barely able to face their personal circumstances and address them on their own. Margaret Hale, however, defies the notion that women largely depend on men just to live. She initially resists that belief by rejecting romantic proposals—a move that shows how she is in control of her life—and displays it at its highest when she throws her arms around John Thornton in an effort to protect him from the angry mob. The latter indicates that it is not always women who seek the protection of men because women can also protect men even at the expense of such women. As Patsy Stoneman indicates in her book Elizabeth Gaskell, â€Å"[Margaret Hale] confronts the fact that men of all classes are governed, in the public sphere, by a masculine code,† a code that effectively prevents the characteristic of tenderness attributed to females (Stoneman, p. 86). Margaret’s willingness to protect Thornton does not only imbibe the thought that women are tender and should not be harmed. It also presents the idea that women—especially those who are considered outsiders to industrial areas such as Milton—can also learn to sympathize with the people who are working under poverty. The incident in the story where the workers were in a strike against Thornton, the local mill owner, also underlines the idea that an outsider can relate to the woes and conditions of the workers more than those who are directly involved in the industrial system. Another interesting aspect of Gaskell’s thematic exploration of industrialization in North and South is how she was able to reunite, in a manner of speaking, the classes considered as polar opposites. As Dorice Williams Elliott observes in her article: â€Å"the novel bases its case for women’s mediation between classes on an analogy between marriage and class cooperation† (Elliott, p. 25). The presence of the outsider, Margaret, in the industrial town makes it possible for the marriage between the classes to commence. Margaret became no less than a person who paved the way for the better understanding between the rich and poor divide although her presence alone did not entirely dissolve the prevalent disparity. Elliott’s observation that Margaret’s mediation led to class cooperation simply reaffirms the idea that ‘class cooperation† in itself still presumes differences between social classes. In Mary Barton, the disparities between the rich and the poor classes take the shape of the story of a father who seeks to protect his daughter from becoming a fallen woman. Like Margaret Hale in North and South, the story revolves around the life and struggles of Mary Barton in Victorian England. John Barton, Mary’s father, is a millworker who lost most of the members of his family except Mary. One interesting part of the story is when John shot Henry Carson, the son of a rich mill owner. Being someone who deeply questions the wealth disparities between rich and poor—largely because he was â€Å"chairman at many a Trade’s Union meeting; a friend of delegates,† someone who was â€Å"ambitious of being a delegate himself† and a â€Å"Chartist† who was â€Å"ready to do anything for his order† (Gaskell, p. 25)—John’s murder of Henry symbolizes how the members of the poor class sometimes grow desperate. The story is ingenious in the sense that it perfectly subsumes the issues surrounding industrialization in Victorian England into the tale of a woman’s quest for love. Mary Barton is a classic example of how Gaskell effectively writes about the problems caused by industrialization in Victorian England without losing sight of the story’s plot. Despite the debates as to whether Gaskell’s novels genuinely reflect the true nature of the Victorian English society during the onset of the industrial period, it should be reminded that what her novels do is to give a fictional account of the problems people face when dealing with people from another social class. Susan Morgan writes that â€Å"the criterion of likelihood is an inappropriate approach to Gaskell’s work† (Morgan, p. 44). For example, â€Å"it may have well been unlikely in Manchester for relations between worker and employer to find solutions through individual friendships† (Morgan, p. 44). Whatever reasons there may be as to why Gaskell wrote as she did, it is enough to note that North and South and Mary Barton capture the struggles of fictional characters in the face of industrialization. The novels may be fiction at best, yet the circumstance they suggests—the epic divide between rich and poor—remains as real today as it once was. Works Cited Elliott, Dorice Williams. â€Å"The Female Visitor and the Marriage of Classes in Gaskell’s North and South. † Nineteenth-Century Literature 49. 1 (1994): 21-49. Gaskell, Elizabeth Cleghorn. Mary Barton. Ed. Shirley Foster. Oxford: Oxford University Press, 2006. Morgan, Susan. â€Å"Gaskell’s Heroines and the Power of Time. † Pacific Coast Philology 18. 1/2 (1983): 43-51. Stoneman, Patsy. Elizabeth Gaskell. Bloomington: Indiana University Press, 1987.

Bethany Hills, Omemee Esker and Fleetwood Creek :: essays research papers

Stop 2: Glacial Lake Peterborough Glacial Lake Peterborough had many attributing spillways attached to it, feeding meltwater and sediment from the ice margin and or other glacial lakes. Much of the sediment that was deposited in Glacial Lake Peterborough came from either from the stagnant ice blocks located on the Oak Ridges moraine or from the Lake Algonquin drainage system. Much of the deposition in this lake was dominated by sediment stratification, which may have been largely influenced by thermal stratification. As a result of thermal stratification occurring in this glacial lake sediment inputs were greatly influenced depending on the different sediment densities between the lake bottom water to that of the incoming meltwater and if the inflow density was less/more than the bottom water than the lake water bottom, than new transport and depositional paths were created Depending on the type of path that was created, it would largely influence the rate and distance to which the sediment was transported. Stop 3a: Kettleby Till The Kettleby till is considered to be younger than the main till in the area because it may have been deposited by ice contact stratified drift. Ice contact stratified drift is normally deposited by meltwater in contact and or in close proximity to the ice sheet. Stratification and some sorting do takes place. Stop 3B: Bethany Hills Deltaic sands on southern Flank Yes this feature is the result of erosion and depositional processes however, it is not associated with the current water course. This feature may be the result of a Gilbert type delta that once occupied this area. Gilbert type deltas have three main components; topsets, foresets and bottomsets. Topsets are fluvial sediments (primarily sandur deposits) that were deposited on the subaerial delta surface. Erosive events occurring on the upper forslope can result in downslope channels and chutes. These features are then eroded by either strong currents or by debris flow resulting in these channels and chutes to become filled. Foresets are a combination of sand and gravel facies. The are deposited by gravitational processes on the delta foreslope and the grains tend to become finer and more angular downslope. Bottomsets consist of fine grained silts and clay and are deposited at the foot of the delta front. Stop 3C: Drumlin in older northern/Newmarket Till I believe that this drumlin is closely related to erosion and accretion hypotheses of drumlin formation. This is because of its location being close to a steep valley wall.

Sacrifice is often necessary to resolve conflict Essay

The power of sacrifice should never be underestimated. Where have the capacity to give up a possession or what is valuable to us for the sake of other’s considerations, tensions and conflict can usually be resolved. As a naà ¯ve and confused teenager, I left the country and all that I had ever known. The idyllic setting of Surrey Hills, where the autumn leaves created a dusty orange wave on the concrete pavement was replaced by a bluestone cottage in a small Belgian town. It was on this French exchange trip where I learned life’s most valuable lessons about conflict and the sacrifices we must make to achieve the greater good and overcome challenges that we face. It wasn’t until I sacrificed my security in entrusting strangers and crushed the barrier of cultural values and etiquette, that I was able to fully integrate into my exchange family and their way of life, and thus overcome the conflict that I was catapulted with. Firstly, conflict is a natural occurrence in human nature and the world that surrounds us. Self-actualization and self-esteem are considered the most rewarding aspects of human achievement. However, a world without conflict is stagnant and unprogressive. Healthy skeptism and the opposing views of one or more people provide us with the basis for progress and to develop as humans. Develop idea Sacrificing what we consider to be important to us, including our moral dignity and wills, is often a necessary step in resolving conflict. Resolving conflict is often dependent on sacrificing not only tangible goods or in some cases lives, it frequently involves going against one’s wills to ultimately come to a balanced agreement with another party. Global conflicts such as war require combatants to make several sacrifices. Firstly, it involves sacrificing one’s unwillingness to kill. A personal account from Australian Solider, Private Cecil Anthony McAnulty, reveals the self-sacrifices of war in the Australian offensive of 1915; â€Å"This is only suicide, boys†¦. â€Å"I’m going to make a jump for it.† Cecil’s expenses, as well as that of many others demonstrate the opposition to one’s wills, often involving their own lives that are associated with the loyalty to one’s country during times of conflict. It is clear that it takes great courage and mental strength to make the decision to kill another human. Fowler too, is forced to make sacrifices when faced with the predicament of inaction. To be ‘engage’ or ‘degage’ both in relationships and in politics remain the  core of Fowler’s dilemmas. Both journalists have the desire to achieve the ‘common good’ however; Mr Heng also reflects that in any conflict â€Å"one has to take sides. If one is to remain human.† Hence, abandoning one’s moral values and consideration of what is morally right, is often required in order to make progress. Similarly, Pyle’s covert intervention on behalf of his government results in the slaughter of Vietnamese civilians. The American is convinced that democracy will ‘save’ Vietnam, but he views the conflict merely through the prism of his own ideological prejudices. Thus, if he and many other Americans had allowed themselves to alter these ideologies, the destructive course in Vietnam may not have been so severe. Thus, making decisions in any situation will involve a missed opportunity or expense. Yet, we must also consider to what extent we risk or sense of moral values during conflict. Good paragraph!! Conflict is often cyclical – to ultimately resolve conflict, we need implement long-term measures and adhere to these obligations. What is clear from encountering conflict, is that entities most likely to lapse into negatively fuelled encounters are those that have been there before. Every post-conflict environment contains the potential seeds for another outburst. The worst horrors in global conflict have usually stemmed from inadequate arrangements for peace building in a previous encounter. The Arusha Peace Agreement in August 1993 is an example of an inappropriate agreement — based on the inconceivability of ceasefire and power sharing arrangements between the Hutus and Tutsis. It was clear that these groups relied on their armies as the instrument of power, and the stark ethnic differences served as an obstacle to the idea of integration. By July 1994 genocide had erupted, constituting as much as 20% of the country’s total population and 70% of the Tutsi’s then living in Rwanda. Thus, it is clear that conflict has is cyclical in nature. A peaceful conclusion is not always possible but often requires a sacrifice beyond a temporary or face value measure. For Fowler, the implications of cyclical conflict are clear. He has the choice of condoning the probable murder of Pyle or infliction further killings of civilians through his Pyle’s Third Force.’ Moral dignity is often on the line when we make such sacrifices. Whilst we can sympathise for Fowler, his decision was justified given that saving that lives of thousand of civilians  outweighs the loss of one. Likewise, the historical wrongs involved in the colonisation of Australia are an example of conflict continuing to haunt the nation today. Indigenous people are subjected to racism in society and are far more likely to be a victim of domest ic violence or drug abuse. Undeniably, Kevin Rudd’s apology speech in February 2008 was not able alter the impacts of the government’s policies that inflicted profound grief, suffering and loss on fellow Australians. Nonetheless, the apology speech was able to â€Å"remove a great stain from the nation’s soul and in the true spirit of reconciliation to open a new chapter in the history of this great land Australia.† Thus, cyclical conflict cannot be dismissed with transient measures. It is only through conflict and making sacrifices that we are able to reconsider what is valuable to us and make progress as individuals. Good TP Whilst conflict involves making noteworthy sacrifices and can often have tragic results, it can also be a catalyst for personal growth and worthwhile social and political change. Often, the results outweigh the implications that the conflict caused and even lead to a greater understanding of what we value as a society. The 1960’s civil rights movement in America can be seen as a necessary social conflict without which, racial injustice would have continued. Rosa Park’s refusal to give up her bus seat to a white man in 1955 sparked intense protests by blacks and concerned whites. However, what is clear is that sometimes defying laws and taking risks is necessary in standing up to racial equality. Similarly, Martin Luther King’s legacy demonstrates that through times of conflict, a sacrifice of laws and risk is necessary to stand against racial inequality. Whilst white extremist groups such as the Klu Klux Klan, embarked upon a campaign against black Americans and their white supporters, the dedication of leaders such as Martin Luther King demonstrate the reconsideration of achieving the greater good for American society and integration for all blacks. What is clear from reading The Quiet American and researching The Vietnam War, is that the result of the conflict had wide-reaching effects on both the communities of Vietnam and global response. With the illicit killings of thousands of innocent civilians in the name of communism containment, the public’s reaction was far from approving. After the withdrawal of American troops from Vietnam, the nation was able to reassess what should be the motivation behind involving in conflict. That is – not an  intervention into a war that is not ‘ours’ nor the suffering and grief of the innocent civilizations as a result of this intervention. Thus, through conflict and the tensions that it encounters, it is possibly for a nation to reaffirm what is morally and ethically right and thus make progress as a diplomatic wester society. Conclusion needs a greater impact: During times of conflict a sacrifice is often required to achieve a resolution. Whether that is our moral dignity, wills, values or cultural identities, this risk is needed also to reduce the risk of counter-conflict. However, what is clear is that the resolution of war, tensions and injustice can outweigh the impacts of the conflict. Through this, we are able to reconsider what is valuable and progress as humans and nations. Written Explanation: My piece is a predominantly expository essay and includes a small extract of personal reflection. This structure allowed me to employ to conventions of a traditional essay whilst the reflection serves as an introduction to what I perceive to be the implications of conflict. Cumulatively, the sophisticated tone and reasoned arguments serve as my base. I have chosen formal language so to ensure my arguments sound reasoned and sophisticated. Additionally, the descriptive and poetic language in my introduction serves as a personal touch to engage readers. My piece would be best suited the VCE cohort who have read the text The Quiet American by Graham Greene and have an informed knowledge of the Vietnam War and other mentions events as they are most likely have a greater understanding of the depth of thought and relevance of examples. Its main purpose is to reflect on the various aspects of encountering conflict and its significance in the world around us. Firstly, I concede that conflict is natural and that it enables us to progress as humans and society. Then I iterate the various forms of sacrifice necessary during the reconciliation process of conflict whilst also acknowledging that conflict has a cyclical nature and thus we need to sacrifice something greater in order to prevent future conflict. Furthermore, I explain the implications of sacrifice and conflict and demonstrate its ability to create positive outcomes that allow for growth and a reconsideration of what is important in life. Finally, the essay, which is based around why ‘sacrifice is often necessary to resolve conflict’, is relevant to many as undeniably,  we all face various forms of conflict at some point in our lives. It is also necessary that we manage conflict effectively and remain in touch with our own beliefs and values.

Gillette’s Acquisiton of Duracell Essay

The purpose of this report is to first discuss the reasons why Duracell’s performance has been decreasing over the past four years, and then recommend some strategic actions Gillette should take to turn Duracell around. This report will begin by providing a brief introduction on the acquisition of Duracell by Gillette, followed by the reasons it lacked success, and finally end with the proposed recommendations for Duracell. Currently, Gillette’s operating segments include personal grooming, small appliances, and oral care products, and the portable power segment. In the portable power segment, Duracell’s major competitors consist of Energizer and Rayovac while new and emerging ones included Sony, Kodak, Panasonic, and other private label brands. The collective entrance of these competitors in the 1990s is the primary reasons for Gillette’s lack of success in the battery industry, discussed below. The key reason Gillette has been unable to achieve the same success in batteries that it has with shaving products is due to the competitive dynamics in the alkaline battery industry. The period of four years from 1997 to 2000 experienced rapid technological innovation in the alkaline battery industry by not only the major players but also from new and small entrants in the industry. Two of these small players were Sony and Panasonic. Sony introduced its â€Å"Stamina Line† of batteries in 1997, which was quickly followed by Panasonic’s â€Å"Panasonic Plus† to compete with Duracell’s â€Å"Copper top† line. Within the same year, the Rayovac Corporation replaced its existing battery with the Rayovac â€Å"Maximum† and priced the product at 20 per cent below the two industry giants – Duracell and Energizer. In the following year (1998), however, Gillette launched its first upgrade of Duracell’s offerings named the â€Å"Duracell Ultra†. This new line did not replace the original â€Å"Copper Top† line that was competing with the product of Sony and Panasonic in the previous year but rather, followed Gillette’s regular move with shaving upgrades of placing a premium on its items. Therefore, Ultra was priced at a 20 per cent premium over the older technology. Nonetheless, the competition was still pouring in. The advent of Energizer’s â€Å"Advanced Formula† happened to be in the same month as Gillette’s Ultra and was claimed to last nine percent longer than the than the Ultra. The major drawback for Gillette, however, was that no price premium was placed on the new upgrade by Energizer and was introduced at the same price point as its previous product. In contrast to Energizer’s upgrade as well as stiff competition from other players, Gillette launched the â€Å"new† Ultra in February of 1999 which claimed better performance. This was rebutted by Energizer’s â€Å"super premium† line of batteries described as e2 (launched in June 2000) and was priced four to six percent higher than Ultra. Finally, in the same month, Duracell announced its third generation of Ultra with more efficiency but no increase in price. This all showed Gillette’s inconsistency in terms of pricing and lack of strategy. It is clear that the introduction of the Ultra led to a series of new innovations of alkaline batteries by both Energizer and Gillette. Gillette had hoped that its innovations would be differentiated products and be perceived industry-wide as unique and valued. However, the company set too high a price premium in order to achieve differentiation for batteries and customers simply did not accept the price/performance proposition Duracell offered its customers. Further, the differentiation strategy that must provide uniqueness valued by customers did not exist as customers perceived batteries to be commodities. One publication of Consumer Reports even indicated that the â€Å"moral on battery shopping is simple: buy by price. This clearly contradicts Gillett’s strategy of price premiums for differentiated offerings and is the prime reason for Gillette’s lack of success. In other segments of Gillette’s business, such as personal grooming, customers are willing to pay premiums for shaving products because they feel an attachment to those products as they are used daily. Attempting to transfer this strategy onto batteries did not work because customers perceived batteries as a commodity not used in their daily routine. On the other hand, companies like Rayovac have simply followed a cost leadership strategy and have seen increases in their operating margin of 32% from 1998 to 1999 and 66% from 1999 to 2000, respectively. The reasons for Gillett’s lack of success in batteries have been outlined above. In terms of strategic actions that Gillette should take, it first needs to deviate from its â€Å"differentiation† only policy that it has used for its shaving products because it is clear that batteries are perceived as a commodity and customers will not accept high price premiums. The proposed recommendation is to achieve competitive advantage by integrating an overall cost leadership strategy with differentiation. This type of strategy is generally harder for competitors to duplicate and will enable Gillette to provide two types of value to customers: differentiated attributes (high quality in batteries, reputation) and lower prices (through lower costs in value-creating activities). The idea is to provide unique value to customers in an efficient manner. In other words, Gillette needs to adopt the cost leadership strategy and attain parity on the basis of differentiation relative to competitors. Duracell needs to be able to stay â€Å"on par† with competitors with respect to differentiated products. In effect, the company needs to pursue overall cost leadership positions in its batteries segment, but still needs to pay attention to emerging higher performance alkaline batteries. In more practical terms, Gillette can first achieve cost differentiation with an aggressive approach to adopting efficient-scale facilities. Tight cost and overhead control can lead to economies of scale where per unit costs will significantly decrease with larger production runs, larger facilities, and allocating fixed costs (such as marketing and R&D) across more units produced. On the other hand, closing down plants in areas of slumping sales can lead to greater efficiencies in costs. Together, these policies will protect Gillette from rivalry of competitors such as Energizer and Rayovac (and new entrants) due to Duracell’s strong existing market share (43%) and reputation in the industry. Moreover, Gillette needs to eliminate small costs that can cumulate over a period of time to yield substantial gains. For example, marketing expenses have accumulated to $370 million from 1998 to 2000 simply because of new product launches each year but without necessity for batteries. These expenses can be controlled by simply conducting secondary market research and analyzing external sources more carefully such as Consumer Reports as they have indicated that consumers are buying batteries by price. Finally, Duracell can still provide its customers the unique value they desire through its reputation and brand loyalty. Introducing a new and improved product with high quality every two years (rather than every year) will allow customers to seek new quality and value while maintaining customer loyalty. These are the proposed recommendations for Gillette when considering a turnaround strategy for the portable power segment and Duracell.

Wind Technology essays

Wind Technology essays Since early history, people have been harnessing the energy of the wind. Wind energy propels boats along rivers, simple windmills, and pumping water as early as 5000 B.C. New ways of using the energy of the wind eventually spread around the world. By the 11th century, people in the Middle East were using windmills extensively. Settlers took this new technology to the New World in the 19th century. They began using windmills to pump water for farms and ranches, and later, to generate electricity for homes and industries. In the 1940s large wind turbines began to operate small industries. Wind turbines fall into two basic categories, the horizontal-axis variety, and the vertical-axis design. Modern wind turbines take advantage of many of today's high-tech technology uses such as aerodynamics, engineering, and electronics. Wind turbines that are grouped together are called "wind farms", and generate a lot of bulk electrical power. Wind farms are in a variety of sizes and power ratings, depending on the location of where the farm is located. Some of the wind turbine propellers can span more than the length of a football field, and can stand up to twenty stories high, which creates enough electricity to power 1,400 homes. Some of the smaller turbines are 8-25 feet in diameter, and stand up to approximately thirty feet tall, which supplies the electrical needs of a small business or an all electric home. Constructing electric-generating wind turbines, regardless of the shape or size, consists of the rotor, the electrical generator, a speed control system, and a tower. Some wind turbines have the options of fail-safe shutdown systems. Fail-safe shutdown systems are designed to turn the blades out of the wind, or simply "put on the brakes" in the event of a mechanical failure. Wind energy is abundant throughout the United States. Characterized by wind-power density classes, ranging from the lowest c ...

Availing Medical Facilities at the Doorstep-Samples for Students

Working on a project and developing all the aspects related to it is a very crucial task. It ensures that the project should get pleted in a smooth manner. A proper plan should be developed in which all the aspects which will indulge in the project should be focused upon (Petit, 2012). The project initiated is about developing an application which will help in availing medical facilities in the rural areas of Australia. An application will be developed which will be connected with the kiosk machines and with the mobile phones of the people living in the rural areas. Application on the mobile phones and kiosk machines will be designed in such way which is easy to use and manage by the people living in the rural areas of Australia. The project initiated will help in providing better services to the munity and will help the people of Australia in managing a sustainable as well as healthy life (Skibniewski, et. al., 2012). Hence, a project is developed which will include a proper descrip tion of what are the aspects required to be taken into consideration before working on the project. It is being evaluated that the people living in the rural areas faces issues in getting proper medical facilities. Hence, by providing them such type of app will help them in managing the healthy life and will help the pany in providing a 75% hike in the sale as Australia has various rural areas where the medical facilities are not much effective (Stanek, et. al., 2016) Projects are developed for the welfare of the business. Aim of developing a new project is to generate more revenue and to ensure that more refined services could be developed (Thomas, 2015). There are various set of benefits which are required to be taken into consideration. But before evaluating the benefits it is necessary that various aspects should be focused upon like market analysis, SWOT analysis and output analysis. Market of online health service is a growing sector which is sustaining in the urban market. It is being evaluated that many of the people are using such type of services and are enjoying them as they are getting health tips just by making certain clicks (Too, & Weaver., 2014). There are many of the health service providers who are providing consultations with the help of online applications in the urban areas. The online health services are sustaining day by day and are moving on a successful path. Taking this business to the rural areas will definitely help in the sustainability of the munity (Cengage Lea Schwalbe, 2015). Providing instant services will help in attracting people of rural areas with the effect of which organization will move on the path of success and sustainability. Plan developed will help in sustainability of the munity There is no petition available in the rural areas Online Medical services has a growing market Helping the rural areas to growth is a noble cause in which government will also provide appropriate set of help for the initiation of project (Koltsov, et. al., 2015). It is necessary that the people of rural areas should provide the knowledge of app, because low knowledge will affect the sale of the product and services. Huge investment is required in the kiosk machine as well as app development. Availability of proper set of resources is really tough Has a very wide area to cover and attract people towards the application. Innovation is there which will help in the sustainability aspects and gaining proper set of market share. Failing to cover maximum rural areas could have a direct impact on the business. It could be possible that people of rural areas may not trust the online app and would rather prefer to visit health care centres. This will affect the sale of the business in near future. It could be possible that new petitors could enter into the market (Palma-Mendoza, et. al., 2014). This will have a huge impact on the sale of the products and services in the rural areas. Understanding the market and evaluating the SWOT analysis it could be evaluated that providing online health services in the rural areas will result in providing various set of benefits to the organisation. Market has a huge potential for growth as people available in the rural areas of Australia will definitely prefer to use the application (Patton, et. al., 2015). It is required that information camp should be organized in which information related with the kiosk machines and application should be provided to the people available in rural areas. This will help in attracting maximum number of people available in the rural areas towards the application. There are certain dis-benefits also which are attached with the new project like it could be possible that people available in the rural areas might not use the application and might prefer to visit the health practitioners directly rather than using the app (Mainga, 2017). Lack of knowledge will have a huge impact on the use of application. This will have a direct impact on the progress of the business and will affect the sale of the same. To manage the project in an effective way it is required that all the requirements needed to carry out the project should be taken into consideration. To manage the project there are several aspects which are required to be taken into consideration these aspects are: Stakeholder’s analysis is required to be taken into consideration as it will help in understanding the requirements and needs they have (Martinsuo, &   Killen, 2014). This will help in managing their requirements and will help managing the project in an effective way. IT team is also required to be hired for the development of the mobile app and kiosk machine Kiosk machines are required to be purchased so that they could be availed in every rural area. Appropriate project management tool will be required to manage the same in a proper way And 4 systems will be required so that the application could be developed according to the requirement (Mishra, 2014). Assumptions are made which helps in developing the understanding with the future aspects which could incur. It is required that the assumptions should be made in an appropriate way and decisions should be made accordingly. It could be assumed that after promoting the app and description of the kiosk machine maximum number of people will get attracted towards the business and will help in sustainability of the same and vice versa (Mà ¼ller, 2015). It could also be assumed that the project initiated will help in availing appropriate set of services in the emergency cases which will help in providing sustainability to the munity. Assumption could also be made that this project will help in providing expansion opportunities to the organisation and will help in the sustainability aspects. Project management is an unpredictable aspect as it is hard to predict all the aspects in a proper way. There are certain set of constraints which could be left behind and these constraints could have a huge impact on the project progress (Pandey, 2008). It could be possible that the IT team could fail in testing the app properly due to which bugs in will left. This will have a huge impact on the implementation of the project to general public. It could be possible that people available in the rural areas may not have proper set of knowledge about the app. Hence, it will again have a huge impact on the progress of the project (Petit, 2012). Determining cost of the project proposed is one of the most important aspects attached with the project plan. It is important that proper analysis of the cost which will indulge in the project should be done as it helps in providing direction to the project developer and helps in managing the work accordingly. In the project proposed cost which could be estimated is $36000. It is a very nominal cost that will in paid by the organisation for the project. Reason behind this cost is that the organisation is already working in the rural areas and there are various centres which are already available in those areas. Hence, the main expense which will incur in the project process will be on the development of the application for mobile and kiosk machines and on the kiosk machines itself only (Skibniewski, et. al., 2012). There are certain other expenses also which will incur in the promotion of the app in rural areas. Therefore the all over cost estimated for the pletion of the project is $36000. Cost benefit analysis is the tool which will be used so as to evaluate the cost which will indulge the project. This will help in evaluating the expenses which will incur and the benefit which a pany will get from the expenses it has made on the project. Cost benefit analysis will help in estimating all set of requirements and will help in making the decision of whether the pany should initiate the project or not (Stanek, et. al., 2016). In cost benefit analysis Net Present Value of the project will be calculated also it will include return on investment and will include break even analysis which will help in determining the payback period of the project. With the help of these aspects pany will be able to make the decision of whether it should apply the project or not. There are various set of risk factors which remain attached with the project. It is necessary that these risk factors should be taken into consideration so as to manage the project and maintain its requirements. Project management is a very crucial task which requires in depth analysis of all the aspects. Hence, it is necessary that the major risk factors should be evaluated and strategies should be developed to mitigate them (Thomas, 2015). Five major risks which are identified in relation with the project are: Choice and Preferences of the target customers These are the five risk factors which could have a huge impact on the progress of the project. It is necessary for the project manager to make the predictions with the help of forecasting so as to gain appropriate set of information related with the risk factors (Too, & Weaver., 2014). Unavailability of the resources will affect the progress of the project as no work could be processed without having appropriate set of resources. Unavailability of funds will have a direct impact on the project, it will have a huge impact on the functions of the project. Natural disaster is another aspect which can affect the project progress (Cengage Lea Schwalbe, 2015) Lack of leadership will affect the internal aspects of the project and will lead to misguide the team working in the project. Choice and preferences of the target customer will again have a huge impact on the project progress as it could be possible that people may not prefer to go with online services. This will lead to cause a huge loss to the pany (Ong, et. al., 2016). It will take 2 months to plete the project, which will also include the training of the employees so that they could work appropriately on the application (Koltsov, et. al., 2015). A step by step process will be provided which is required to be followed by each and every individual working on the project. It is important that the time provided for the task should be followed in an appropriate way so as to ensure that the project could get pleted within the timeframe. Major milestones decided by the project manager for the project are: Evaluating the need of the project which will be done within 2 days. In this analysis will be done of why it is required to develop such type of app for rural areas (Palma-Mendoza, et. al., 2014). Project scheduling is another aspect which will be focused upon. Project scheduling will be pleted within 5 days (Pigott & Hobbs, 2011). Time keeping will be done which will be pleted in 2 days Technical design will take 15 days as it will include various programming and developing of the app. Testing will be done for the 10 days in which all the bugs will be removed. And then training will be provided for 15 days to the staff members (Patton, et. al., 2015) At the end it could be concluded that the project initiated will help in the expansion of the pany. The project proposed will help in managing the requirement of the munity and will help in providing a better set of support to the munity. It could be evaluated that for a project it is necessary that all set of aspects should be taken into consideration and analysis should be done so as to provide a better set of support for the future success. Cengage Lea Schwalbe, K., (2015). Information technology project management. Cengage Learning. Koltsov, P., Osipov, A., Kutsaev, A., Kravchenko, A., Kotovich, N. & Zakharov, A. (2015). On the formation of structures in nonequilibrium media in the resonant three-wave interaction. puter Optics, 39(4), pp.542-556. Mainga, W. (2017). Examining project learning, project management petencies and project efficiency in project-based firms (PBFs).  International Journal of Managing Projects in Business, 10(3), Pp. 122-133. Martinsuo, M. &   Killen, C. (2014). Value Management in Project Portfolios: Identifying and Assessing Strategic Value.  Project Management Journal, 45(5), Pp. 56-70. Mishra, R. (2014). Identification of Strategic Project Management Resources in Indian Software Project Management panies.  Prabandhan: Indian Journal of Management, 7(9), p. 7. Mà ¼ller, R. (2015). The Migration of Methodologies for Project Management Research.  Project Management Journal, 46(2), Pp. 3-5. Ong, H., Wang, C. & Zainon, N., (2016). Integrated Earned Value Gantt Chart (EV-Gantt) Tool for Project Portfolio Planning and Monitoring Optimization.  Engineering Management Journal, 28(1), pp.39-53. Palma-Mendoza, J.A., Neailey, K. & Roy, R., (2014). Business process re-design methodology to support supply chain integration.  International Journal of Information Management,  34(2), Pp.167-176 Pandey, D., (2008).  Rural project management. New Delhi: New Age International (P) Ltd., Publishers. Patton, C., Sawicki, D. & Clark, J., (2015). Basic methods of policy analysis and planning. Routledge. Petit, Y. (2012). Advancing project and portfolio management research: applying strategic management theories.  Strategic Direction, 28(9), Pp. 187-192. Pigott, D. & Hobbs, V. (2011). plex knowledge modelling with functional entity relationship diagrams. 41(2), Pp. 192-211 Skibniewski, Miroslaw J., & Vecino, Gustavo A.,   (2012). Web-based project management framework for dredging projects.(Author abstract)(Report). Journal of Management in Engineering, 28(2), Pp. 127. Stanek, Babkin, & Zubov., (2016). A new approach to configurable primary data collection. puter Methods and Programs in Biomedicine, 133, Pp. 169-181. Thomas, J., (2015). Using unstructured diaries for primary data collection. Nurse Researcher 22(5), Pp. 25. Too, & Weaver., (2014). The management of project management: A conceptual framework for project governance. International Journal of Project Management, 32(8), Pp.1382-1394.

What constitutes the Neo in Neorealism Is Neorealism an improvement on Essay

What constitutes the Neo in Neorealism Is Neorealism an improvement on traditional realism - Essay Example realism and neorealism in the light of artistic visual products such as paintings, drawings and film highlighting common aspects in philosophy and material use. In defining whether neorealism is an improvement of traditional realism close connection between uses of material, utilization of light and shadow to create realistic perception and conceptualization. Political neutralism has also been discussed highlighting ideological differences with traditional realism. Realism can be traced back to events in the 5th century when it was used reliably to chronicle and predict international relations (Crawford, 2000, p. 10-256). Recent developments such as globalization and economic warfare have made the world more complex redefining issues of interest. Politically there are five core premises of realism and neorealism. The central philosophies address causes of war and condition of peace (Crawford, 2000, p. 10-256). Realism holds that selfish interest in every person is the basis of conflict between nations which are collective platform of individualistic interest with each nation defending its interest. Power is the only negotiating factor in realism (Crawford, 2000, p. 10-256). Neorealism holds that lack of a formal global political system creates anarchic situation where nations feel perpetually threatened by others (Crawford, 2000, p. 10-256). To protect their interest each nation develops its central system that endeavors to protect its existen ce. System structure is necessary explanation depicting international system as a self-help system formed on the basis on security dilemma and powerful incentive for arms-races. Power and security are the central factors in neo-realism (Crawford, 2000, p. 10-256). Central actors are geographical regions defined as states which peruse their interest of autonomy, independence, security, survival, power, relative capabilities and positionality. Realism is based on inductive knowledge from history while neorealism is deductive

Marketing Strategy Essay Example | Topics and Well Written Essays - 1000 words - 2

Marketing Strategy - Essay Example 8), Hershey’s marketing strategy has been predicated on consistently superior product quality, intensive distribution and best possible value in terms of price and weight (p. 207). With a vision to continuously provide premium quality confectionary goods to its customers, Hershey became the market leader with a market share of 29%. Hershey’s selling and marketing organization is comprised of Hershey North America, Hershey international and global marketing groups. Hershey International markets its products worldwide and has responsibility for pursuing growth in other countries focusing mainly in Asian growing markets like India and China. The global marketing group is responsible for building global brands, developing transformational growth platforms, brand positioning and pricing strategies. Hershey has been approaching various methods in order to gain competitive advantages on its counterparts like MARS, Cadbury and Nestle. It has been operating business worldwide with various strategies that helped them to be strong in most markets like India. Taylor (1997) emphasized that Hershey had been using a range of strategies to penetrate the international confectionary markets and it had always relied heavily on direct exports to smaller markets and had participated in the processes of acquisitions, joint ventures, licensing agreements and strategic alliances of various kinds (p. 344). Acquisition of major market players has been considered to be an effective strategy in order to gain access in to global market. Accessing in to a global market like confectionary is extremely vulnerable, especially when the competition within the marketplace is fierce, the technological innovations put forward by companies are highly advanced and strategies are constantly fluctuating. But, through acquisition and mergers, the company can gain the advantages of easy access and effective marketing operations with the help of acquisitioned firms as they are well aware of the market

The dangers of BPA (Bisphenol A) in Plastic bottles or containers Speech Presentation

The dangers of BPA (Bisphenol A) in Plastic bottles containers - Speech or Presentation Example I. Introduction How many of you have taken drinks or food products packed in plastic bottles? How many times do you stay for a day without using a plastic bottle or container? How many plastic containers do you use in your kitchen every day to warm food and store left over’s? Most of us in college always pack their sandwiches in plastic containers because it is the most convenient packaging material. Plastic bottles or containers are cheap and easy to carry around because they are light. Plastic containers and bottles are used world wide. Take a walk into a supermarket one day and you will be amazed at just how many food products are packaged in plastic bottles or containers. Just take a look in your refrigerator and count how many food products are packaged in plastic cans or bottles. Today we are going to look at a component known as Bisphenol A (BPA) found in plastic bottles and containers, specifically the effects of Bisphenol A. We are also going to look at samples of pla stic bottles that are safe or unsafe to use. We always use plastics because they fit our convenience. Plastic containers are most convenient when it comes to packing our drinks or food. Bisphenol A (BPA) is a toxic material found in the hard plastic containers or bottles. Usually, Bisphenol is used to harden plastic bottles or containers. Bisphenol A is located in the lining of plastic beverage and food plastic cans. The most disturbing issue is that plastic bottles used to feed children have been found to have Bisphenol A. II. Body. Bisphenol A is a chemical material found in polycarbonate resins and plastic materials or bottles; it possesses a health hazard to animals. A. Chemical compound of Bisphenol A. 1. Bisphenol contains phenol chemical components known as acetone 2. When acetone is highly ingested, it causes irritations that will depress the central nervous system. 3. Acetone can cause irritations in the eyes when it comes into contact with the eyes and the respiratory syst em. B. Health hazards of Bisphenol A. 1. Bisphenol may be dissolved in foods and drinks that we take. 2. Although Bisphenol is highly digestible, high exposures of low plastic levels of Bisphenol in the plastics can lead to several health complications in animals. 3. According to the National Institutes of Health, Bisphenol can cause interference with the body’s estrogen production (endocrine Disruption). 4. Many studies conducted by scientists have shown that rodents exposed to high levels of Bisphenol show change behaviors and brain structure. 5. Rodents exposed to Bisphenol exhibit cancer, difficulty in breathing and diabetes. 6. Although effects of Bisphenol on human beings is inconsistent, recent studies have shown that exposure of human beings t to low levels of Bisphenol can inhibit the production of a hormone known as Adiponectin. 7. Adiponectin is used to regulate levels of insulin 8. Studies have also shown that Bisphenol A can cause obesity in human beings. 9. Bisp henol A can also cause negative effects on the pregnancy. C. Research Studies 1. The Food and Drugs Administration in United States has come under fire for claiming that BPA is not harmful by the Natural Resources Defense Council in 2008. 2. The National Institute of Health in 2008, raised concerns about the safety of BPA on plastics used in storing beverage and food products as allowed by the Food and Drugs Administration in United States. III. Conclusion. Since it is impossible not to use plastic containers and bottles, it would be advisable to

Affect The Flight Time Of A Balsa Wood Glider Engineering Essay

Affect The Flight Time Of A Balsa Wood Glider Engineering Essay The purpose of the study was to obtain the relation between the flight time and launch height of a balsa glider of different wing area. Also the effect on flight time was recorded by changing the position of wings of the gliders. In the first part of the experiment the gliders were launched from four different height and the flight time was recorded. The experiment was conducted in a closed area in order to avoid the effect of wind. The gliders used were of different size and shape. The net acceleration acting on the gliders was also calculated by plotting a graph between square of flight time and launch height. In the second part of the experiment the wing positions for three different gliders were changed and the flight time was recorded in each of the three gliders. The launch height of the gliders was kept same. It was observed that as the launch height was increased the flight time also increased. The amount of lift could only be analysed by calculating the net acceleration in each of the gliders. The variation in the flight time due to the change in the position of wings was interpreted in terms of the increase in the loops made by the gliders i. e. the instability of the gliders or the moments of wings. Word Count- 221 Table of Contents- Introduction _______________________________________ 4 Theory _______________________________________ 5 Experimental Set up ___________________________________ 9 Method ________________________________________ 10 Result _________________________________________ 12 Conclusion _________________________________________ 22 Limitations ________________________________________ 23 Unresolved Questions _________________________________ 24 Bibliography ______________________________________ 25 Appendix ______________________________________ 26 Introduction: The question about aerodynamics has great importance in todays times and the various factors that affect aerodynamics of an aircraft or a glider is necessary in order to improve the efficiency. By taking up this experiment I have tried to analyse the acting forces on the flight of a glider such as the lift, the drag, and the weight also the theory of projectile motion plays an important role in determining the flight time of a glider. Also keeping in mind the laws of physics that relate to flight and also checking whether they are in accordance with the following experiment. Research Question- How the Wing area and position along with the launch height affect the flight time of a Balsa Wood Glider? The aim of this experiment is to study how the wing area, wing position and the launch height have an impact on the flight time of a balsa glider. In order to establish the above relations balsa gliders of different wing areas were hand launched from different heights and the flight time was recorded. As for the relation with the wing position and flight time they were hand launched as well from a fixed height with different wing positions. Theory The experiment is based on the theory of projectile motion, and fluid mechanics. Projectile Motion- When a body is projected from a certain height with a certain velocity, the acceleration on the body acts only in the downward (along y-axis) direction and the acceleration along the horizontal (x-axis) direction is zero. Since the air resistance also affects the horizontal motion of the body there might be some deceleration, however it is of a very small magnitude hence it can be neglected in the case of my experiment. The same explanation can be taken for the wind; there might be some component of the force (due to wind) which might affect the horizontal motion as well. This is also taken care of in the experiment as it is conducted in closed area. As the initial velocity is in the horizontal direction its vertical component is zero, by taking the vertical motion the flight time of the glider should depend on the height from which it has been launched and the net acceleration in the vertical direction. By varying the height in the experiment the flight time should also vary proportionately. As the height is increased the flight time should also increase. Due to the change in the forces acting on the glider the net acceleration can also change which in turn will affect the flight time. Forces There are three types of forces acting on a glider which are: Weight The weight of the body always acts in the downward direction. The weight of a body dependent on the mass of the glider and gravitational acceleration which can be taken constant for a given space. By Newtons 2nd law of motion, the weight is given by (F = mg) It  is the  force  due to the gravitational attraction of the earth on the  glider. But this force weight, which is the gravitational force, is different from the aerodynamic forces,  lift  and  drag.  The lift and the drag are mechanical forces that will act on the glider only when it is in physical contact with air which generates these forces. The gravitational force or weight is a field force; and is a non-contact force. The gravitational force (weight) between two objects depends on the masses of the two objects and the inverse of the square of the distance between these objects. The more the masses of the objects the stronger is the attraction, and closer the object are the stronger the attraction. Lift Lift is the  force  that acts on a glider upward and helps the glider to stay in the air. The lift on the glider is mainly generated by the wings.  It is an  aerodynamic  force produced by the motion of air flowing through the glider. Lift acts through the  centre of the pressure  of the glider and is in the direction which is normal to the flow of air. Lift occurs when a flow of air is  turned  by the glider. According to Newtons 3rd law of motion the flow of air is turned in one direction, and the lift is generated in the opposite direction. Since air is a  gas  and its molecules are free to move about, any solid can deflect its flow. For an  air foil, both the upper and lower surfaces plays part in turning the flow of air. There can be two types of lift static and dynamic lift. Static lift according to the Archimedes principle whenever a body is immersed in a fluid it experiences an upward force called the buoyant force. The factors on which the buoyant force depends are: The volume of the fluid displaced and; the density of the fluid. If the area of the wings increases the magnitude of the lift should also increase and the net force acting on the glider should also increases which in turn should decrease the net acceleration and hence increase the flight time. Dynamic Lift According to Bernoullis principle; the dynamic lift is due to the difference in pressure on the two sides of the body which is due to the difference in the speed of the air on the two sides of the body. There are various factors that affect lift, these are: Aircraft  wing geometry  has a large effect on the amount of lift generated. The shape and size of the wing will have a significant impact on the amount of lift generated. In order to generate lift there must be some velocity; hence if the object is moved in air then lift will be generated. Lift also depends on the  mass  of the flow.it also depends in a major way on the viscosity and compressibility of air. Viscous force or Drag Viscous force is a mechanical force. The drag, like lift, is also produce by the interaction and contact of a solid body with air. For drag to be produce, the solid body must be in contact with the air. If there is no air, there is no drag. Drag is generated by the difference in the speeds of the solid object and the air. There must be relative motion between the object and the air. If there is no relative motion, there is no drag. Viscous force always opposes the motion, hence it will be opposite to the motion of the glider. The most of the factors affecting drag is same as that affecting the lift. The viscous force can be taken as the aerodynamic friction, and one of the sources of this force is the  skin friction  between the molecules of the air and the solid surface of the glider. Since the skin friction is an interaction between a glider and the air, the magnitude of the skin friction depends on properties of both glider surface and air. The smooth, waxed surface of glider will produces less skin friction than a rough surface. And for the air, the magnitude of skin friction depends on the  viscosity  of the air. The relative magnitude of the viscous forces to the motion of the flow of air is called the  Reynolds number. Also the drag can be taken as the aerodynamic resistance to the motion of the object through the air. This source of drag depends on the shape of the glider and is called  form drag. When air flows around a body, the velocity and  pressure around the glide  are changed. The pressure is a measure of the momentum of the air molecules and a change in momentum results in a  force, a change in pressure will produce a force on the body. This component of the aerodynamic force that is opposed to the motion is the drag. Viscous force directly depends on the  mass  of the air flow going past the glider. Effect of Height on Flight time In this experiment there will be 4 heights taken but the height intervals will not be uniform in order to check the trend and see if there is a clear distinction in readings of flight time. As the height increases the flight time should increase as there is more distance to cover for the glider and since there are no forces acting as mentioned above, it is only the height that acts as a factor to change flight time. Wing area In this experiment the wing area should effect the flight time of the gliders as seen earlier, lift has a direct connection with wing area. As the lift increases the glider goes higher in the air thus increasing the flight time. Every glider has a different wing area and this makes a clear distinction between the flight times for the gliders. Wing position The wing position whether towards the front or back determines the stability of the glider while its flight. The more it is to the front of the socket it tends to do be more unstable and has a very loopy flight which increases the flight time. The further behind the wing is in the socket the more stable the glider is as the weight is more towards the centre of mass, making it more stable and also increasing the flight time however whilst a straight and balanced there are other forces acting on the flight that might pull it down to the ground. Experimental Set up Gliders In the initial stages the glider used were made by hand using a template to cut out the parts of the gliders. However these gliders lacked perfect stability and the edges had to be rubbed and smoothened in order to use make them completely aerodynamic. Even after doing so they lacked perfect specification and the material used to make them was not the right material hence they did not glide as required to. The gliders used in the later stages were bought online from amazon.com. These gliders are laser cut and ready to fly. They are made out of balsa wood. There were 3 types of gliders that were used, the parts of the gliders were precisely cut and well balanced in order to obtain a decent flight. The 3 gliders varied differently in shape, size, and weight and wing area. Area The experiment was conducted in a closed environment. The length of the place was approximately 35meters and width approximately 12meters. The wind factor was controlled as all doors and windows were shut and it was an enclosed area. Method: There were various steps that are involved in this experiment. The glider was first flown in an outdoor environment to check the flight. Since the wind factor cannot be controlled in an outdoor environment it was not possible to conduct the experiment outside as this affects the flight time. Hence an indoor area was chosen. Measuring Wing Area The gliders that will be used which each have different shape, size, and wing area. The first variable wing area cannot be measured by a given formula as it is not a uniform shape and cannot be broken into smaller shapes. The wing area will be measured by keeping the entire wing on a graph sheet whose each square area is known and the outline of the wing shape will be sketched out on the graph sheet. After having done this the number of complete squares of the known area that are enclosed by the outline of the wing will be counted. After this the number of incomplete squares and an approximation will have to be made as it is not feasible to calculate area of a fraction of the square. This will be done for each of the three gliders and will be noted down. In order to make sure that the gliders, glide properly without any hindrance and technical difficulty a test flight will be done. If there seem to be any technical problems with any of the three gliders they shall be fixed at first in order to provide accurate and legit readings. If any parts seem to be broken they will be fixed by the special adhesive which is used to stick balsa wood. Launching and Measuring Flight Time Keeping in mind that there are no holders or launching devices provided with these gliders they will have to be launched by the free hand as it is not possible to devise a launch method. This is so because making any alterations to the glider might distort its stability and will cause unequal weight balance. Although launching from the hand will have uncertainties such as different launch force and height it will be controlled as much as possible. In order to make sure the height is constant a plumb line will be taken and held from the comfortable launch height. This plumb line will then be measured in accordance with a metre scale. Every time a glider is launched it will be launched from the same height as the thread will be held at that height while launching the glider. The second height from which it will be launched will be after standing on top of a dining table. The height of the table will be measured by using another plumb line and will be measured in accordance to the metre scale. This height of the table will be added to the initial launch height and then a plumb line of that height will be held while the launch. The fourth height will be from approximately the first floor. The vast interval difference is taken so that there can be a clear trend that can be observed for the flight time. The height of the wall will be measured and then the initial height of the launch will be added to this. The fourth height will be from above a table on the first floor, in order to obtain this height the same step as the one for the table height on the lower level will be used. Taking the readings of the flight time will be done by using a stopwatch. It is not possible for me to do this alone as starting the stopwatch and launching the glider is not possible at the same time hence a little assistance will be required to measure the flight time. The assistant will start recording the flight time as soon as the glider leaves contact with my hand and will stop as soon as the glider touches the ground. These readings will then be recorded in a table. There will be 5 readings taken for each glider at each height. There are two wing positions possible either at the front of the socket or the back. Each gliders wings will be adjusted as front and back and for each position there will be 5 readings taken. Result Flight time for different launch height (Experiment1) Glider A Height (meters) Flight time ( ± 0.01s) Average( ±0.13s) t2(sec2) 1.5 1.64 1.78 1.84 1.81 1.74 3.03 2.24 2.21 2.45 2.53 2.28 2.38 5.68 5.3 3.83 3.94 4.04 3.72 3.91 15.29 6.04 4.81 4.63 4.79 4.84 4.75 22.54 As the height was increased the flight time also increased. Since the glider used was the same and the speed with which it was projected also remained same the lift experienced by the glider did not change. The increase in the time was only due to the increase in height from which the glider was projected. Glider B Height (meters) Flight time ( ± 0.01s) Average ( ±0.13s) t2(sec2) 1.5 1.25 1.5 1.28 1.3 1.32 1.75 2.24 1.54 1.68 1.61 1.59 1.61 2.60 5.3 2.19 1.94 2.4 2.33 2.24 5.02 6.04 2.78 3.01 2.92 2.84 2.87 8.26 The trend between the time of flight and the height of launch was same as in the case of glider A. Glider C Height (meters) Flight time ( ± 0.01s) Average ( ±0.04s) t2(sec2) 1.5 0.93 0.90 1.01 0.94 0.94 0.88 2.24 1.16 1.21 1.24 1.19 1.19 1.43 5.3 1.57 1.59 1.55 1.6 1.57 2.45 6.04 2.1 2.12 2.11 2.15 2.11 4.47 The trend between the time of flight and the height of launch was same as in the case of glider A and B. hence in all the 3 cases it was found that the lift experienced by the gliders did not depend upon the height of projection or the height at which the glider was flying. As seen above in the graph the flight time of the glider is directly proportional to the height from which it has been released i.e. as the height increases the time taken by the glider to touch the ground also increases. According to the equation of motion 2 If we are considering the vertical motion then the initial speed in the vertical direction will be taken as zero then 2. The three forces acting on the glider that is the weight (mg), the drag and the lift are all constant. Since the drag and the lift depend on the speed of the glider it is not changing as the speed in all the cases are constant. The above relation can be made linear by plotting a graph between t2 and h from this graph the net acceleration acting on the glider can be calculated by measuring the slope of the graph. Since: 2. Net acceleration = 2/slope of the curve. Measurement of net acceleration of the glider. Glider A Calculation Net acceleration = 2/slope of the curve. Net acceleration in glider A= = 0.51 m/s2 Glider B Calculation Net acceleration = 2/slope of the curve. Net acceleration in glider B= = 1.62 m/s2 Glider C Calculation Net acceleration = 2/slope of the curve. Net acceleration in glider B= = 3.1 m/s2 The Glider C has the maximum acceleration and Glider A has the least. This also means that Glider C comes to rest much more quickly than Glider A, Glider A also has a longer glide time and this is because of the light weight and wing span that makes it more stable while in flight. Whereas when compared to Glider C the weight is much more and the glider isnt stable enough to stay in air for a long time. The wing area also has a significant impact on this as the more wing area means more lift however when we check Glider C has more wing area but it yet doesnt get enough lift; this explains that this glider needs more thrust when launched in order to stay in air longer than the others. Wing Position (Experiment2) Glider A Wing Position for A Position Flight time ( ± 0.01s) Average ( ±0.11secs) Front 1.72 1.85 1.9 1.68 1.77 1.78 Back 1.56 1.59 1.72 1.6 1.52 1.60 As seen above when the wings of the glider are moved forward the flight time of the glider increases. Glider B Wing Position for B Position Flight time ( ± 0.01s) Average ( ±0.11secs) Front 2.13 2.06 2.24 2.17 2.26 2.17 Back 1.66 1.59 1.63 1.82 1.74 1.69 As in the case of Glider A when the wings of the glider are moved forward the flight time of the glider increases. Glider C Wing Position for C Position Flight time ( ± 0.01s) Average ( ±0.12secs) Front 1.47 1.59 1.61 1.53 1.42 1.52 Back 0.84 0.79 0.94 0.75 1.03 0.87 As in the case of Glider A and B when the wings of the glider are moved forward the flight time of the glider increases. As we can see in the graphs above the time taken for the flight when the wings are in front is more than the flight time for when the wings are pushed backward. This is because the forward wings make the flight of the glider much more unstable and cause it to loop more. The looping increases the time to touch the ground as it causes sudden immediate lift and this also increases the horizontal gliding time. Whereas on the other hand when the wings are pulled back in order to make the flight more stable but there are still other factors like weight, lift and drag that are constantly affecting the flight and causing it to descend. Conclusion: In the first part of the experiment it was found that the flight time increases as the height from where the glider was launched increases. I each of the 3 gliders the lift acting on the glider did not change as the area of the glider remained same. The change in the flight time was only due to the change in the height of the launch. The graph between the height of launch and the square of flight time gave the measure of the net acceleration in case of the 3 gliders which in turn could be interpreted in terms of net force acting on the glider. The measure of net acceleration showed that the lift produced in case of the gliders increased with the wing area. The lift in the case of Glider A was found to be maximum, as it had the maximum wing area. In the second experiment the flight time increased as the wing position was shifted towards the front of the glider. The trend obtained in all the three gliders was the same. The increase in the flight time was due to the increase in lift that made the glider shoot up and loop in the air. As the glider looped in the air the height also increased which in turn increased the flight time. The increase in the loop made by the glider was due to the instability produced by shifting the weight of the wing to the front of the plane. Limitations: There were several limitations while doing this experiment. The first and what can be considered as the most important is the launching technique. This is the most crucial part of this experiment and all the readings depend on this. Due to the fragile bodies of the glider there could be no launching technique devised that would make sure the force on each launch is the same. The lift acting on the glider depends on the speed of the glider; if the launching speed varies it can affect the lift experienced by the glider. Since it is not possible to neither control the force used for each launch nor measure it, it was the biggest drawback. When the experiment was conducted in the open the wind factor had a great impact on the flight of the gliders. The gliders being light and very fragile, the wind outdoor was drifting the gliders into different directions and also slowing them down. This change in path and time was random and unpredictable. Since it was not possible to control the wind the experiment was carried out in a closed environment, yet there was some wind that affected the flight and caused slight deviation in path which could have possibly increased the flight time or even decreased it. Since the gliders were launched several times and had not landing mechanism as well, the rough landing chipped quite a few parts of the gliders that made the flight for the later readings relatively unstable and defective. Unresolved Questions: The effect of projection velocity on the flight time was not clear as the gliders were launched with almost same velocity and force. The speed with which the glider moves effects both the lift on the glider and the drag acting on it. The two forces are very important in deciding the flight of the gliders. By designing a proper launch mechanism the effect of speed or the launch force would had been studied. Also the efficiency of the flight could have been studied by measuring glide ratio i.e. the ratio of the horizontal distance travelled and the loss of height travelled in a given time. Bibliography Books: Giancoli, Douglas C., Physics Principles with Applications, 6th Edition, Pearson Education Limited, NJISBN: 0-13 -184661-2-1. Nelkon, M., and Parker, P., Advanced level Physics, London, Heinemann Educational Books Limited, ISBN 0-435-68636-4 Tsokos, K., A., Physics for the IB Diploma,5th Edition, Cambridge University Press, ISBN 978-0-521-13821-5 Websites: http://en.wikipedia.org/wiki/Gliding_flight http://www.grc.nasa.gov/WWW/k-12/airplane/glider.html http://www.skysailing.com/pages/theory.htm http://web.mit.edu/16.00/www/aec/flight.html