Why US should keep sugar quotas Essay Example | Topics and Well Written Essays - 500 words

Why US should keep sugar standards - Essay Example This understanding came to profit most nations, as they could promptly send out their sugar to the US where sugar cost was higher than on the planet advertise. At the point when sugar from different nations overwhelmed the US showcase, the accessibility was higher than the interest and the outcome was an extreme fall in the costs of sugar. To change the circumstance, the legislature needed to mediate to decrease the amounts to be imported from every nation. Taking such a measure was to ensure the sugar business just as the ranchers and makers of sugar. The administration additionally guaranteed that if sugar falls beneath a set cost for each pound, it would by the sugar with the goal that ranchers are ensured a base cost. With the NAFTA understanding came to in 19942, there have been various examinations to show that in the event that care isn't taking, at that point the US would observer dumping in the sugar showcase. Especially stressing over this is issue is Mexico. It has been demonstrated that as exchange obstructions fell with the production of the NAFTA, U.S. fares of high-fructose corn syrup would stream into Mexico, and soda pop creators in Mexico would begin utilizing high-fructose corn syrup as a sugar rather than sugar.

Teen Pregnancy (707 words) Essay Example For Students

Adolescent Pregnancy (707 words) Essay Adolescent PregnancyPrograms That Work NowSome 63% of high schooler guardians relied upon open projects for clinical requirements and day by day everyday costs in 1992. This incorporates requirements for recipe, food, warmth, and transportation. In Ohio, the state, private associations and governmentally financed programs together give help to pregnant adolescents and youngster moms. The projects ensure that the young ladies are eating great, get pre-birth care, and get support to remain in school to make sure about a future for themselves and their kids. There are private associations and networks that have attempted to fill the holes of these national projects. A program in the Covington, Kentucky school locale offers a model that couple of Ohio schools have attempted. Holmes High School has consolidated a youngster care focus nearby creation it simpler for adolescent guardians to remain in school. Id need to attempt to get up genuine ahead of schedule before school to get her to a day care. Be that as it may, presently I simply carry her to class with me consistently, says Amy Gilbert, there would be no chance I could bear the cost of it . Holmes Highs Chapman Child Development Center administrations around 40 to 45 teenagers. With the assistance from awards and cash from the moms Aid to Families with Dependent Children (AFDC) checks the inside figures out how to teach the necessities of youngsters to the moms and keep them in school. We will compose a custom paper on Teen Pregnancy (707 words) explicitly for you for just $16.38 $13.9/page Request now The inside is additionally upheld by the Federal Child Care Program whose presence is being compromised by The Contract with America. When asked what the Contract intends to the focuses future, program executive Peggy Browning set it forth plainly, It is going to murder us. We won't have the option to run this spot. The focuses objectives are to improve the participation of the guardians, increment, their confidence, teach guardians in the requirements of their youngsters, and ensure guardians will have the option to work later on. These objectives are steps to safeguard and instructed adolescents so they may become beneficial grown-ups in our networks. They will be more averse to have youngsters again until there are increasingly steady. Fathers are showing up since the inside opened a year ago. Some go to the child rearing classes and invest significant time to sit and play with their child or girl. This is unordinary. The inside makes it simpler for the dads to get included. More projects are required like this in Ohio where the drop-out rate in 1992 was at 56% for adolescent moms. By slicing subsidizing to AFDC (Aid to Families with Dependent Children) the administration would be legitimately expanding that rate. A private association, Directions for Youth is attempting to satisfy these moms needs in another manner. They need to ensure the young ladies have somebody they realize they can depend on. Adolescent Connection, a program inside the association, was built up with awards from Franklin County Children Services to set up a volunteer and teenager match. The volunteer turns into a companion to the high schooler to urge her to open up and examine whatever she is experiencing difficulty with or what things she is amped up for. The matches put in a couple of hours seven days together doing an assortment of exercises either with or without the youngsters kid. They may go to supper, or a film, the zoo, or simply sit home and talk. At the point when the volunteer joins with Teen Connection she traces a few objectives she needs to set up. They as a rule urge the mother to proceed with their examinations at school and to think ahead to what's to come. Lori Severt, 17, mother of multi month-old Christopher, and Rhonda Roseberry, 24, have been meeting for a year at this point. From that point forward Kerri Sauber, the Volunteer Coordinator has seen Loris confidence improve and she has gotten all the more cordial, a quality ailing in numerous teenager moms. .uf705e336b4a282f5bc72083a2e9987fe , .uf705e336b4a282f5bc72083a2e9987fe .postImageUrl , .uf705e336b4a282f5bc72083a2e9987fe .focused content region { min-stature: 80px; position: relative; } .uf705e336b4a282f5bc72083a2e9987fe , .uf705e336b4a282f5bc72083a2e9987fe:hover , .uf705e336b4a282f5bc72083a2e9987fe:visited , .uf705e336b4a282f5bc72083a2e9987fe:active { border:0!important; } .uf705e336b4a282f5bc72083a2e9987fe .clearfix:after { content: ; show: table; clear: both; } .uf705e336b4a282f5bc72083a2e9987fe { show: square; progress: foundation shading 250ms; webkit-change: foundation shading 250ms; width: 100%; haziness: 1; change: obscurity 250ms; webkit-change: murkiness 250ms; foundation shading: #95A5A6; } .uf705e336b4a282f5bc72083a2e9987fe:active , .uf705e336b4a282f5bc72083a2e9987fe:hover { darkness: 1; progress: mistiness 250ms; webkit-change: obscurity 250ms; foundation shading: #2C3E50; } .uf705e336b4a282f5bc72083a2e9987fe .focused content region { width: 100%; position: relative; } .uf705e336b4a282f5bc72083a2e9987fe .ctaText { outskirt base: 0 strong #fff; shading: #2980B9; text dimension: 16px; textual style weight: striking; edge: 0; cushioning: 0; content embellishment: underline; } .uf705e336b4a282f5bc72083a2e9987fe .postTitle { shading: #FFFFFF; text dimension: 16px; text style weight: 600; edge: 0; cushioning: 0; width: 100%; } .uf705e336b4a282f5bc72083a2e9987fe .ctaButton { foundation shading: #7F8C8D!important; shading: #2980B9; fringe: none; fringe sweep: 3px; box-shadow: none; text dimension: 14px; text style weight: intense; line-tallness: 26px; moz-fringe range: 3px; content adjust: focus; content improvement: none; content shadow: none; width: 80px; min-stature: 80px; foundation: url(https://artscolumbia.org/wp-content/modules/intelly-related-posts/resources/pictures/straightforward arrow.png)no-rehash; position: outright; right: 0; top: 0; } .uf705e336b4a282f5bc72083a2e9987fe:hover .ctaButton { foundation shading: #34495E!important; } .uf705e3 36b4a282f5bc72083a2e9987fe .focused content { show: table; tallness: 80px; cushioning left: 18px; top: 0; } .uf705e336b4a282f5bc72083a2e9987fe-content { show: table-cell; edge: 0; cushioning: 0; cushioning right: 108px; position: relative; vertical-adjust: center; width: 100%; } .uf705e336b4a282f5bc72083a2e9987fe:after { content: ; show: square; clear: both; } READ: Business Management EssayTo give reasonable assistance the Lamaze Childbirth Association plans youngster moms throughout the previous hardly any weeks in their pregnancy the same amount of as ladies. The affiliation allows a multi week common labor class in Columbus equipped to the requirements of youthful moms. With the assistance of awards from the government, state and neighborhood level the program can be offered to low pay young ladies with no charge, and make the birthing procedure less unnerving. Political Theory

How to use these blogs

How to use these blogs So I was looking through some old notes that I was working on for this blog- topics to cover, questions to answer, stuff like that, and I came across a collection of things that I had written which can most accurately be titled, How to get the most out of reading the MITblogs, or maybe How to not get a sarcastic reply to a question from me. I fixed them up a bit, and here they are: 1. Just read it. Every once inawhile I get questions like, So, whats MIT like? Yeah, Im not answering that. Read the blogs, thats what theyre for. We try to make them interesting, and I personally try to link each entry to as many other entries as possible, so that you can waste hours clicking arond to random interesting topics. In fact, I think Ill link random words in this entry to some random blog entries. You know, just for fun. 2. Tell us what you want to hear. So, you know those 2 ridiculously long entries I did a little while ago about all of the machine shops on campus? That was done by request- a prospective student asked one of the admissions counselors, who passed it on to us. That was awesome. I spent a week wandering around campus machine shops, awkwardly taking pictures of random people I didnt know. (I find this kind of situation hilarious, personally.) Ive been blogging for over 2 years now. Every once in awhile, I run out of ideas. So give me some of yours. =) 3. Ask good questions. If you ask me “does MIT have a major in economics?” I’m going to be like “dude, why didn’t you just go to the MIT home page, click on academics, and then read through the list until you got to the part about the economics major?” Similarly, if you ask me “Is there a group for students who are religiously identified as Lutheran?” I’m going to just google the MIT site, and while I don’t mind doing that for you, it’s not a really exciting question. If you ask something cool and insightful,it may even inspire an entire post, and that would rock. Everyone would be happy. I don’t have any examples of this, because if I did, I’d be off writing said inspired posts instead of this one. My point is, we love getting good questions and entry ideas- a lot of times we don’t know what to write, and even when we do, we don’t know if you’ll really care. 4. Remember that I am a lowly student. Please don’t ask me if I filed your letter of recommendation yet. The answer is always no. (You can direct that stuff to admissions at mit dot edu.) 5. Cut it out with the “what are my chances?” stuff. I have a very serious question to ask those of you itching to ask this question: who the hell cares?! For real. If there was a crystal ball you could look into that would tell you who was going to be admitted to what schools, you wouldn’t need to fill out all those applications, would you? Just fill out the application, send it in, and then wait for the answer. I know the waiting sucks, but is getting some random person’s opinion of your chances really going to help the waiting suck less? No, probably not. If you ask this, were just going to say we dont know anyway. 6. Do not insult my SAT score. I got a 700 on the SAT I math section, and every time I get asked zomg I only got a 760 on the SAT I math and I dont have time to retake it and Im doomed to work at mcdonalds for the rest of my life what should I do???!?!?!?!!! I get angry. And thats not just a personal thing. Im just as angry when the grade in question is as low or lower than mine. Listen to me very carefully: THERE IS MORE TO LIFE THAN THE SAT. And thank God. 7. Every once in awhile, get off the internet and go outside or something. Im serious. Get a tan. Read a book. Stop thinking about college applications so much. What are your thoughts on my ramblings?

Southern Pulp Paper - 1354 Words

Southern Pulp and Paper Introduction In this work I am going to identify the Southern Pulp and Paper’s Toccoa mill problems and issues that are available to mill’s manager Curtis Shelton. Part 1 In considering the overall process on the pulp and bleached products industry it is always good to start with the main performance objectives and measures. One of the first important issues is the process design and layout. How the process architecture looks like and how well it is designed to fulfill all the required operations would be the most important questions to be asked. As stated in the case study the main problem of the mill appears to be the machines, number 5 and 6. They were in use since 1967 and were quite old, and†¦show more content†¦Part 2 In this part I am going to show some improvement techniques, which will help to solve the problems faced by mill’s manager. Firstly, in order to understand the entire process and find its problems it is essential to map the process. Using the Flowcharting technique of process mapping and exhibit #3 of the case study a basic scheme of the overall process should be built. Once the process is sketched it is easi er to understand what are the bottlenecks and in which way it could be improved or even redesigned to fulfill the requirements of the system (Slack et al, 1998:701). After having a good understanding of what processes are running in the mill it is then advised to focus on each of them separately. Flow charts can be used for the entire overview of the process improvement. They visually represent the process, identifying the problems and pointing on the participants (material or information flow). The flowchart system can be very basic as well as different approaches could be used such as Burlton’s Transformation Model or Business Process Modeling Notation (BPMN). BPMN was developed in two versions, a core notation set to use by business people and an extended notation set for automation. It uses a particular symbol set (Harmon, 2007:231). In order to identify the causes of breaks of the machines and to understand how to solve them it’s good to use Cause and Effect also calledShow MoreRelatedBackground of Roscoe and the NDT Industry2118 Words   |  9 PagesRoscoe Nondestructive Testing Inc., is a company specialized in provision of testing service for large boilers of pulp and paper mills industry. Its services include monitoring corrosion of boiler walls by nondestructive testing (NDT) methods (such as ultrasonics) and provide its customers reports for the condition of boilers. With the testing information provided by Roscoe, pulp and paper mills can evaluate whether replacement or repair of their boilers is required. The most important asset forRead MoreBirch Paper Company1521 Words   |  7 PagesBirch Paper Company Internal Environmental Analysis What they do? – Birth Paper Company is a medium sized, partly integrated paper company, producing white and kraft papers and paperboard. They also convert paperboard into corrugated boxes with printing and colour on the outside surface. Where they operate? – Birch operates 4 production divisions for paper, paperboard, and corrugated boxes as well as a timberland division to supply part of the company’s pulp requirements. How well areRead More Paper761 Words   |  4 Pages In the 1790s members of the industry in both Paris and London were working on inventions to try to mechanise paper-making. In England John Dickenson produced the cylinder machine that was operational by 1809. 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On the north side of Chile lies Peru, to the east is Bolivia and Argentina, and on the south Peru is bounded by the Pacific Ocean. The Archipelagoes Islands extend along the southern coast of Chile from Chiloà © Island to Cape Horn. Among these islands are the Chonos Archipelago, Wellington Island, and the western portion of Tierra del Fuego. Some other islands that belong to Chile include the Juan Fernà ¡ndez Islands, Easter IslandRead More Chile Essay1606 Words   |  7 PagesIntroduction Chile is a republic located in southwestern South America. On the north side of Chile lies Peru, to the east is Bolivia and Argentina, and on the south Peru is bounded by the Pacific Ocean. The Archipelagoes Islands extend along the southern coast of Chile from Chiloà © Island to Cape Horn. Among these islands are the Chonos Archipelago, Wellington Island, and the western portion of Tierra del Fuego. Some other islands that belong to Chile include the Juan Fernà ¡ndez Islands, Easter IslandRead MoreSnow White Paper Company Case Study1044 Words   |  5 PagesSnow White Paper Company If I were to price these boxes any lower than $480 a gross, said James Brunner, manager of Snow White Paper Companys Thompson Division, Id be countermanding my order of last month for our sales force to stop shaving their bids and to bid full cost quotations. Ive been trying for weeks to improve the quality of our business. If I turn around now and accept this job at $430 or anything less than $480, Ill be tearing down this program Ive been working so hard toRead MoreAccounting1059 Words   |  5 PagesCase Study on Transfer Pricing: BYRCH’S PAPER COMPANY If I were to price these boxes any lower than $480 a thousand, said James Brunner, manager of Byrch Paper Company Thompson Division, I’d be countermanding my order of last month for our salesmen to stop shaving their bids and to bid full cost quotations. I’ve been trying for weeks to improve the quality of our business, and if I turn around now and accept this job at $430 or $450 or something less than $480, I’ll be tearing down thisRead MoreJackfruit- Background, History, and Origin of a Unique Fruit933 Words   |  4 PagesJackfruit Jackfruit, Artocarpus Heterophyllus, is said to originate from the Western Ghats although no one is definite on this. It grows in rain forests and along low-elevations through out India, Burma, Ceylon, Southern China, Malaya, some small parts of Australia and the East Indies. It was introduced into Florida in approximately 1887 but few trees now remain. The jackfruit comes from a very large and bushy tree, which is also used for shade, and can range from 30-70 tall with glossy, greenRead MoreBirch Paper1553 Words   |  7 Pages CMA 302 – Tutorial Case Study: Final Draft Birch Paper Company 1. Background Birch Paper Company is a medium sized partly integrated company that produces Kraft papers and paperboard. 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Fahrenheit 451 As A Dystopian Society - 1181 Words

â€Å"Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.† - Kofi Annan. This quote states that education is the key to power and guiding others. The main character in Fahrenheit 451, Guy Montag, lives in a dystopian society where people have lost their will to think and communicate with others. In Montag’s society, books are prohibited from civilians because they are deemed offensive, ultimately causing the brain dead downfall of their society. Montag’s profession is a firefighter, who lights houses on fire that contain books in them to shield the society of knowledge. After meeting a spirited well thought girl named Clarisse and an old retired professor named Faber,†¦show more content†¦Both of these characters have a hard time trying to communicate with other people. Only in his society, Montag has the ability to make real relationships and connections with other people in his l ife. These people can greatly impact his life for the better as well as offer wisdom such as his friends, Clarisse and Faber, who are responsible for Montag’s realization of his society. Although both characters are prohibited to do what they want, Montag is capable of doing much more than Truman. The only thing Montag cannot do in his society is read and possess books which is prohibited by the government. Montag is prohibited to read, but still reads anyway which allows him to understand what his society is really like. â€Å"There must be something in books, something we can’t imagine, to make a woman stay in a burning house; there must be something there. You don’t stay for nothing.† The government prohibits people to become self-aware, much like the people controlling Truman’s society. In a way, both of these characters live in the same society. In Truman’s society, his capabilities are very limited as he is controlled by the soci ety to do what they would like. Because Truman is heavily monitored, it is hard for him to do different things and go to new places. If Truman is feeling adventurous, his feelings are immediately shut down by other actors. In the Truman Show, Truman’s dream is to go to FijiShow MoreRelated`` Fahrenheit 451 `` By Dystopian Society912 Words   |  4 PagesAn utopian, or perfect, society is where people is over satisfied and has no complaints, obstacles about their way of life in that community. In the novel Fahrenheit 451, the government believe they have made quite such a place but in reality, the society this novel is portraying is a dystopia, where everything is bad, unpleasant, the opposite of an utopia. This depicts dystopian society because of common suicide, relationships, technology, emotions and their environment they are living in. TheRead MoreFahrenheit 451 As A Dystopian Society Essay1048 Words   |  5 PagesImagine living in a society where the whole world of literature has been completely turned upside down. Books are now being burned in attempt to stop the characteristic we know as individuality and a dystopian society seeks to control the population by eliminating individual desires, thoughts and passions. The novel Fahrenheit 451, written by Ray Bradbury explores the idea of a dystopian society that burns books to eliminate individuality and specific opinions between all persons. The protagonistRead MoreDystopian Society In Fahrenheit 451, By Ray Bradbury749 Words   |  3 Pages Ray Bradbury ´s wrote a book about this dystopian society where everything in our world is backwards in their world, they can speed, they burn books, and everybody is always gloomy and sad. Montag changed his mindset throughout the book, he went from burning books to saving them from getting burnt. Mildred on the other hand , continuously stayed the same throughout the book. She beginned the book showing she did not care, and carried that same mentality through the rest of the book. Ray Bradbury ´sRead MoreA Dystopian Society in Ray Bradburys Fahrenheit 451654 Words   |  3 Pageshasn’t gotten the point of completely censoring everything. In Fahrenheit 451, a novel about a dystopian society, Ray Bradbury illustrates what he believes our world should be like right now. This scarily accurate novel demonstrates the way technology has affected knowledge and relationships in both our world and the world of Fahrenheit 451 in the same way. One of the many ways our world is similar to the dystopian world of Fahrenheit 451 is in the way technology affects our relationships. TechnologyRead MoreDystopian Society In Fahrenheit 451 By Ray Bradbury1243 Words   |  5 PagesFahrenheit 451 by Ray Bradbury takes the reader to a dystopian society where firemen do more harm than good. The setting takes place in a large United States city in the year 2053. The story has a futuristic and dark tone which makes the reader wonder what the future holds. Has the government become so corrupt that it has the power to control everything? Ray Bradbury tells a story of what happens to society when the government controls people and replaces happiness with distractions. The charactersRead MoreDystopian Response To The Movie Equilibrium And Fahrenheit 451864 Words   |  4 PagesThe book Fahrenheit 451 and the movie Equilibrium have many similarities, but they also have many differences. Both Show this through the characteristics of a dystopia, the controls used, and how the main character acted. A dystopia is an imagined, unpleasant, futuristic place where society is controlled and seen to be perfect by the corrupted citizens. A dystopia is controlled through a corporate, bureaucratic, technological or philosophical control. Both of these stories are dystopian stories andRead MoreCorruption of Technology in Fahrenheit 451 by Ray Bradbury739 Words   |  3 PagesFahrenheit 451 by Ray Bradbury Fahrenheit 451 is a book by Ray Bradbury, written after World War II and it examines the corruption of technology in a dystopian society. This book explains how a dystopian society works and how people are so attached to television and cars and do not enjoy the natural world. People in a dystopian society are full of fear and sadness. They do not have equality or freedom, they are all so soaked up in technology that it is illegal for them to do simple stuff, suchRead MoreFarenheit451/Gattaca, Relationship Between Man and Machine1243 Words   |  5 Pagesrevolving around science and technology, usually conveying the dystopian alternative future context, the pessimistic resultant of society. Ray Bradbury s Fahrenheit 451 (1953) and Andrew Niccols Gattaca (1997) both explore the values and concerns of human existence. Despite the difference in context, Gattaca and Fahrenheit 451 both extrapolate the relationship between man and machine in a metaphorical sense. Both pose similar dystop ian concepts of a machine like world. Through the use of juxtapoismRead MoreFahrenheit 451 Vs. 1984970 Words   |  4 PagesFahrenheit 451 vs. 1984 Ray Bradbury and George Orwell share a very similar theme in their two novels, Fahrenheit 451 and 1984. Winston Smith and Guy Montag work within an authoritarian organization, in which, they have opposing views of the authority. The novels are placed in a dystopian setting that the authority believes is a utopia. The dystopian fictions both have very similar predictions of the future. The predictions from these novels have not happened. However, it could be a short matterRead MoreThe Dystopian Themes Of Fahrenheit 4511372 Words   |  6 PagesEven though Fahrenheit 451 was written over 50 years ago many of the dystopian elements Bradbury applied to his story also apply to our current society. A large portion of today’s world is in a dystopian state such as North Korea, Sierra Leone, Chad and even Disneyland shows dystopian characteristics. The citizens that live in North Korea believe that they are in a utopian state, they worship their leader as a God, have a bureaucra tic control and also propaganda control. Four dystopian themes in Fahrenheit

How Bangladesh is affected by flooding Free Essays

Flooding is a huge problem for the people in Bangladesh and the problems continue to have negative and positive effects on the people, property and land/environment. The negatives of flooding; There are many different types of floods that Bangladesh suffers from and these are; flash floods; where there is an extreme amount of rainfall effecting both upland areas and over time low land areas. This type of flood has a huge affect on property as it can wash it away completely destroying it and also flooding crops and killing them, this type of flooding will also deposit lots of sediment so the river bed will rise making the river easier to flood. We will write a custom essay sample on How Bangladesh is affected by flooding or any similar topic only for you Order Now River floods are where high amounts of rain and melted snow from the Himalayas completely flood the river and also the floodplain, the water can not be contained so flows over lands which is usually not protected, this again damages crops by flooding them and also ruining the land for future use as farm land. This type of flooding will also damage or even destroy property and in extreme cases entire settlements which in turn will also kill people if they do not evacuate quick enough. Rainwater floods are where there are again extreme amounts of rainfall and there is too much surface water and land is flooded. This can kill cattle, people and destroy farmland and crops which people need for their livelihoods. For example of crop destruction, in 1987 and 1988 rice production on a country scale was largely disrupted due to extreme floods. Even if engineering is successful and floods are controlled there is the negative effects that the country gets further into debt and a lot of the flood controls do not fit in with the natural environment so is an eye sore. Methods of flood control also effect farming in certain areas as they block irrigation of water so many farmers are complaining as they are not getting the water needed to grow crops for their livelihood. The worst effected areas of flooding are the coast as many people live here and this is where flooding is most extensive, many people are killed damage to property and farm land is huge so this disrupts the local economy. In the floods of 1991 flooding was that hard that waves were 7 metres high and this brought wind speeds of 225 km/h. people had to climb trees to evade the floods but over 150 000 people were drowned and 500 000 cattle were lost along with vast damage to settlements, electricity, roads and fishing. Deforestation is another big factor that is negative as this destroys trees that are vital for the world and also does not allow interception to occur so the snow melting from the Himalayas is coming directly to Bangladesh with nothing sopping it. As there is little knowledge and little communication available people can not prepare and are defenceless. With the vast amounts of chemicals and diseases in the Ganges, flooding just spreads this all around the country contaminating drinking water and brings huge problems that need huge amount of medical care so calls for the worlds charities to help. You can read also Waves There are very little positive effects of flooding as floods bring so much destruction. The positives though are; due to vast amounts of deposition the silt that is deposited is high in fertility so ‘repairs’ the soil so can be used in the future making it good for crops to grow in. also the vast amounts of water, when controlled can be irrigated for the crops rice and jute which require a large amount of water to grow. This in turn helps re – boost the local economy and gets the farmers back to their usual livelihood. Finally in cases of extreme flooding where the world is made aware, it can show the kindness of countries by the help they donate and the medical care made available to help restore the country to normal. Although there will always be social, economic, and humane problems with flooding the key is for the country to recover as quick as possible with the least effects and damage done to the country and its people. How to cite How Bangladesh is affected by flooding, Papers

Morality free essay sample

The nurse explained that her husband, a talc miner, had stayed on the highway with the boy’s body until the coroner could get over the mountains from Bishop, at dawn today. â€Å"You can’t just leave a body on the highway,† she said. â€Å"It’s immoral. † It was one instance in which I did not distrust the word, because she meant something quite specific. She meant that if a body is left alone for even a few minutes on the desert, the coyotes close in and eats the flesh. Whether or not a corpse is torn apart by coyotes may seem only a sentimental consideration, but of course it is more: one of the promises we make to one another is that we will try to retrieve our casualties, try not to abandon our dead to the coyotes. If we have been taught to keep our promises – if, in the simplest terms, our upbringing is good enough – we stay with the body, or have bad dreams. Morals are expendable when survival lies in the balance. Survival, of what? Survival of life, survival of an idea, survival of a relationship? Millions have killed millions because they thought their agenda was more prevalent, or their god justified it, or because they needed to in order to fulfill the instinctual desire to live at all costs. In no way am I saying that ethics should be readily broken for personal gain, but the principles that so many try to live by arent as universally important as they seem. I truly believe that if you are not living for other people, you are not truely living. Relationships mean everything. Its not just the way you treat family, or your friends, its everyone. I treat people how I would want to be treated and give respect where respect is due. My morals are much more diverse then just dont lie, steal, cheat, or kill . My morals are reflective of todays day and age, not as dated and black n white as those four. My morals are competitive, like our present society. I never intend to hurt anyone, and my actions are far from malicious, but if the survival of something I hold close lies in the balance, I am willing to bend my moral code in order to ensure the continued existence of what I view jeopardized. I stand by what I believe; those are my morals. Live for others, but never forget who is left at the end of the day. Ive always viewed integrity as personal. Its how you a carry yourself. Its how you act when no one is watching. But, this is all personal. I dont let other people dictate my integrity, I let my actions speak, and I ask myself at the end of the day, if I acted like the man I want to be. Many days, when I reflect on myself, I realize I havent been. And this is life, improving day to day so you never repeat mistakes.

bla bal Essays - Politics, World Government, Constitution

The main question is-would some kind of international federation under present conditions strengthen the trend for material integration, so as to make of it a general and positive foundation for peace? A federation comes into being for certain specific ends, and for those only. A federation unites, but it also restricts. It rests on a rigid division of powers and functions between territorial authorities which have equal status; and that division is usually and necessarily laid down in a written constitution provided with an armoury of safeguards against its being lightly tampered with. An inter- national federation, to come into being at all, would have to start upon a very narrow basis and very rigid arrangements as to form and functions; and the reluctance to allow these to be disturbed would be correspondingly deeper In an international federation every adaptation, every amendment, would have to pass the gauntlet of jealous discussions between countries which have newly come together and differ in their political background. Even in agreed common matters the pace is that of the slowest member of the federation; issues which divide deeply have to be skirted. But in our time conditions and needs and problems are apt to change rapidly. The constitution would have to be continuously adapted, or the difficulty of doing this would hobble the life and government of the federation. . The explanation may be found in a recent article on sovereignty by Professor Levin,2 a leading Soviet jurist, who uses this very argument-that any and every people must be free to transform its social organization with full power of its own to do so, and without external interference or complications. Professor Levin is obviously right in assuming that this would not be possible under some rigid and comprehensive form of political association. If a federal House cannot be half free and half slave, neither can it be half capi- talist and half communist. Every attempt at deep change in one part would put in jeopardy the persistence of the whole; for the alternative would appear to the legalists as disruption, and to the reformers as stagnation When the present federations came into being, their chief central functions were common defence and foreign policy. If Governments have the welfare of their own peoples at heart they could let such organizations get to work; and if the organizations are successful and their number grows, world government will gradually evolve through their performance. From the point of view of normal daily life, to quote the late Professor Hobhouse, "the life of a community may be regarded as the sum of the functions performed by its members." And con- versely, one might add, the performance of a number of common functions is the way to create a normal community. If one were to visualize a map of the world showing economic and social activities, it would appear as an intricate web of interests and relations crossing and recrossing political divisions-not a fighting map of States and frontiers, but a map pulsating with the realities of everyday life. They are the natural basis for international organizations: and the task is to bring that map, which is a functioning reality, under joint international government, a t least in its essential lines. The political lines will then in time be overlaid and blurred by this web of joint relations and administration

Influence of Alcohol and Drug Addiction on Political socialization in America essays

Influence of Alcohol and Drug Addiction on Political socialization in America essays Effects of Drug and Alcohol Addiction on Political Socialization in America Political Socialization is the process, by which citizens of a particular region, nation, state, city, or country develop the ways in which they develop views and beliefs about the political issues of their respective areas. This process is developed in America, through this nations citizens families, peers, the media, and their political party involvement (if any). It is the intent of this research paper to show the reader how the rise in alcohol and drug addiction has had adverse effects on this process called political socialization, in America. The paper will lead the reader through the four influences in this process and show how addiction has a negative effect upon each . The first influence in a United States citizens life is the citizens family. The ways in which the family views political issues has a big effect on the ways that the individual also views these issues. Parents teach their children about the value of participating in the political system through their example and approval. Therefore, if the family has a strong addictive, anti-social tendency towards the political factions of their society, there will be a stong tendency towards the same anti-social perspective created in their children. In The American Journal of Drug and Alcohol Abuse, Volume 24, number 4, Jeanette Taylor, M.A. states that, after tabulation for the families of 35 delinquent, substance-abusing (multiple problem) adolescent males, as expected, a significant, positive correlation among conduct disorder, anti-social personality disorder, alcohol abuse, and drug abuse was found for each corresponding males family. It was concluded that identifying male multip le problem youths also identifies families with a high incidence of similar problems. This information states that a families tendencies are an almost m...

Case Analysis-Milton Manufacturing Company Study

Analysis-Milton Manufacturing Company - Case Study Example Issues at Milton Manufacturing Company Companies that face issues must identify them in order to evaluate its effects and to find solutions to resolve the problems. The managers of the company are directly responsible for the performance of the employees and the company as a whole. Resolving problems can help improve the productivity, efficiency, and profitability of a company. Milton Manufacturing Company faces three types of problems. The three types of problems present at the firm are accounting, operational, and ethical issues. The accounting department is responsible for recording, tracking, and monitoring the economic activity of a firm (McGuckin). It is of the utmost importance for accountants to comply with the generally accepted accounting principles (GAAP) and to maintain a high level of ethical conduct by the professionals that practice accounting. The first financial problem that the company faces is that its revenues decreased by 10% in comparison with the previous year. Lower sales results hurt the bottom line of the company by lowering its profitability. Another issue with lower sales is that it can deplete the cash reserves of a firm. A second accounting issue was that the capital expenditures of the company were increasing at a rate of 26%. A third accounting issue Milton Manufacturing Company faced was a reduction in its cash flow position. ... Lower sales results hurt the bottom line of the company by lowering its profitability. Another issue with lower sales is that it can deplete the cash reserves of a firm. A second accounting issue was that the capital expenditures of the company were increasing at a rate of 26%. A third accounting issue Milton Manufacturing Company faced was a reduction in its cash flow position. Cash is the most important assets a company holds because it is used to pay for the short and long term obligations of the company which include payments of payroll, utilities, and debt. The cash flow from operating activities of the company decreased from $1,925,000 to $1,722,000. The firm’s cash outflow from investing activities increased from $1,834,000 to $2,244,000. The only positive activity in the statement of cash flows is that cash from investing activities received an inflow of $168,000 instead of the outflow the firm had the previous year of $376,000. The cash position of the company was ext remely important due to the fact that the company was in the process of obtaining a $20 million loan from Second Bankers Hour & Trust Co. Ann Plokin determined that if the company keeps spending at its current pace it would not be able to pay for the $20 million loan. In order to remedy the situation she implemented a control measure to limit the capital expenditures of the different plants to the 2009 level of expenditures. Milton Manufacturing Company also faced production problems. One of its plant managers, Sammie Markowitz, identified a major operational deficiency in the machinery and equipment of the firm. He notified the problem to the VP of operations. The problem he identified was

Evaluation of Design and Administration of a Questionnaire Essay

Evaluation of Design and Administration of a Questionnaire - Essay Example Generally, the working party was disappointed by the results and had a different pattern of response from those at school. Why the Working Party Members Were Disappointed With the Results The working party members were disappointed with the results because the results did not reflect the actual objectives of the survey. Indeed, the survey was only able to satisfy the objective of what the town’s youth did in their leisure time but failed in satisfying the other objectives. Because of the survey or else the responses to address the objectives, the group’s quest to find out what would capture the interest of the youths in Littlebury town and reduce their boredom was not satisfied. The different pattern of response from the working respondents that suggested that their interests were very different from their counterparts at school only proved challenging to the working party members who aimed at certain objectives different from the working respondents. ... This is because the survey was supposed to define in clarity the activities held at the leisure centre that were patronised by young people in line with the objectives. The time, resources spent on the survey did not rally with the results which is also another source of dissapointment by the working party members. Indeed, the results did notv address the interests of the working respondents as well as the the interests of the working party members on this Littlebury Leisure Survey. A table showing which objective(s) addressed by respective questions in the questionnaire Question Number Objective (s) Question 1 To find out what the people in Littlebury town did in their spare time To find out the frequency of using the available leisure centres in Littlebury town Question 2 To compare leisure activities and preferences for different age groups To assertain the gender and age group attending available leisure clubs Question 3 To find out the most popular sporting activity for the peop le of Littlebury town Question 4 To find out the out the most popular club or society activity in Littlebury town Question 5 To find out the most popular leisure activity amongst all age groups Question 6 To establish what leisure activities they would like to have in town To establish additional leisure activities that people in Littlebury town have Question 7 To establish their potential interest in some of the ideas proposed by the working party Question 8 To establish what leisure activities different people would like to have in town Question 9 To compare leisure activities and preferences of different age groups Question 10 To establish the contact of the respondent Additional Questions That

Dcf Distributed Coordination Function Computer Science Essay

Dcf Distributed Coordination Function Computer Science Essay Fragmentation It is the process used in MAC IEEE 8021.11 to break ­ing apart a packet into smaller pieces. Fragmentation is process that dividing long frame to several shorter frame. Using this technology because the Wireless LANs have high bit error rates. The probability of losing frame is much higher for wireless links. The 802.11 uses fragmentation to reduce the frame error rate. The PCF is supporting sensitivity traffic and support some high priority application. Therefore the real time application data need to transmitted without any delay. The probability of lost frame is much higher for wireless links. Thats why fragmentation is used to Reduces amount of time medium is in use and Reduces probability of collisions. And there some pervious work has been done which related to our title, will be shown in next sections. Acknowledgment: Acknowledgments the patience and support of my family was the biggest help in the completion of this project. And would also like to acknowledge for my supervisor Mr.Manssor Ali and for module tutor Prof. Vallavarj, and module leader Mr. Vijay Krishna, for their guiding. Also, I would like to thank the project coordinator Ms. Pravenna , for encouraging me to complete this work and my study. Nomenclature MAC: Medium Access Control. DCF: Distributed Coordination Function. PCF: Point Coordination Function. AP: Access Point. BSS: Basic Service Set. IBSS: Independent Basic Service Set. ESS: Extend Service Set. RTS: Request To Send. CTS: Clear To Send. ACK: Acknowledgement. OSI: Open System Interconnection. LLC: Logical Link Control. HTTP: Hyper Text Transfer Protocol NAV: Network Allocation Vector. DSSS: Direct Sequence Spread Spectrum. Contents Page Contentsà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.. Page No Abstractà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. i Acknowledgementà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ii Nomenclatureà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..iii Contents pageà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..iv List of figuresà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦v Chapter 1: Introductionà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦7 1.1) General Informationà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..7 1.2) Aim Of the projectà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦7 1.3) Project Objectiveà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..8 1.4) Honors challengesà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.8 Chapter 2: literature Review..9 Backgroundà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..9 IEEE MAC 802.11physical layerà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦10 what is Fragmentation.10 Why we are using this Technology.12 The advantages and disadvantages of fragmentation..12 Distributed Coordination function (DCF)13 Fragmentation Operation.14 Point Coordination function (PCF)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..15 Analysis The earliest work in data fragmentation IEEE802.1116 Chapter 3 Literature Review analysis..19 solutions for all above problems.19 Future Work..20 Chapter 4 Research Problem.21 Chapter 5 Design and Experiment Setupà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..22 Chapter 6 Conclusionà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.23 Chapter 7 Referencesà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.25 List of figures Figure name Page No. Figure (1) Independent Basic Service Set(IBSS)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ 11 Figure (2) Infrastructure Basic Service Set à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ 11 Figure (3) Fragmentation The RTS/CTS access methodà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. 13 Figure( 4) MSDU divided into several MPDUà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ 14 Figure (5). Combination DCF PCF. 15 Figure (6) The effect of (polling overhead )on network throughput17 Figure (7),Effect of fragmentation. 18 Figure (8), WLAN Setup diagram in OPNETà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.. 22 Chapter 1 Introduction 1.1) Aim: Study on the effect data fragmentation on the performance of IEEE 802.11 wireless LAN under PCF mode.fragmentation used to increase reliability transmit frame by divide 802.11 frames into smaller pieces (fragments) that are sent separately to the destination. 1.2) The objectives in this paper will be as follows: 1)The first objective in this paper will be understand the Theory and different standards of IEEE 802.11. 2)To understand the what are structure of the wireless network 3)To evaluate and analyse the effect data fragmentation on the performance of IEEE 802.11 wireless LAN under PCF mode. )Selection for suitable simulation tool4 5)To design suitable WALN with appropriate settings 6)Study the critical evaluation of the result. 1.3) Honours challenge: Critical analysis and evaluation of the results. Experimental Investigation of existing work. 1.4) General Information: The motivation i select this project title , is because in my organization they are looking for wireless network technology ,which can provide such applications like for delivering traffic for real-time applications such as Voice and data . Therefore IEEE 802.11 under point coordinate function PCF can satisfy the requirement, we will see that later. wireless local area network (WLAN), make people on the move to communicate with anyone and anywhere at anytime Caledonian college is one best example which is providing wireless service inside the college camps which allows the student to share data and web brows. The IEEE 802.11 WLAN has two different type of method channel accessing ,the distributed coordination function (DCF) and point coordination function (PCF). DCF is based on the carrier sense multiple access with collision avoidance (CSMA/CA) mechanism, while PCF is based on using the polling technique. The DCF mode of operation consists of two techniques for packet transmission. In the default its operate as a two-way handshaking technique where a positive acknowledgment is transmitted by the receiver station. (Stallings, 2007) . Fragmentation It is the process of break ­ing apart a packet into smaller pieces. A source (wireless Network Interface Card or access point) uses for fragmentation is to divide 802.11 frames into smaller pieces (fragments) that are sent separately to the destination. The fragments are all marked in a way that allows the destination device to put them back together again after it gets all the fragments. 1.5)The some of earliest work in data fragmentation IEEE802.11: Dynamic Fragmentation Scheme fro Rate -Adaptive WLAN.[7] Improving the Aggregate Throughput of Access Points in IEEE802.11Wireless LANs[26]. Performance Analysis of Packetized Voice Transmission with PCF in IEEE802.11Wirelessnetwork.[27] Delay Analysis of IEEE 802.11 PCF MAC based Wireless vetworks.[28] Performance Evaluation of the IEEE 802.11 Wireless LAN Standards [6]. Performance Enhancement of Wireless Local Networks. [20] Chapter 2 Literature Review Before we will go in depth of our title on data fragmentation under PCF mode , we must understand The basic building block of the WLAN network in IEEE 802.11., And our first objective will be covered in this section. 2.1) Background: In this section we will be discussing about wireless local area network (WLAN), which make people on the move to communicate with anyone and anywhere at anytime Caledonian college is one best example which is providing wireless service inside the college camps which allows the student to share data and web brows ,but increasing demand on portable computer for example Laptops and increasing communication equipment, its has responsibility of increasing in wireless network service. As we know this technology is working under protocols to control the service between users. Each type of wireless data network operates on a specific set of radio frequencies. For example, most Wi-Fi networks operate in a special band of radio frequencies around 2.4 GHz that have been reserved in most parts of the world for unlicensed point-to-point spread spectrum radio services. Other Wi-Fi systems use a different unlicensed band around 5 GHz. (Ross , 2008) ) IEEE MAC 802.11physical layer are defined in three type:2.2 Direct sequence spread spectrum (DSSS):its operating in the 2.4 GHz band at data rate of 1Mbps and 2Mbps, the number of channels available depend on the bandwidth. Frequency hopping spread spectrum(FHSS): operating in 2.4GHz at data rates of 1Mbps and 2Mbps, the available channel range is 23 in japan,70in USA. Infrared : data rate is 1Mbps and 2Mbps operating at a wavelength between 850and 950 nm. For IEEE 802.11 there are different standards as we can see ,but my study will be based on IEEE 802.11:[4] à ¢Ã¢â€š ¬Ã‚ ¢ IEEE 802.11: Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) Medium Access Control (MAC), and 1 and 2 Mbps for DSSS, FHSS in 2.4 GHz band, and Infrared, ratified in 1997. à ¢Ã¢â€š ¬Ã‚ ¢ IEEE 802.11a: Works at 6, 9, 12, 18, 24, 36, 48 and 54 Mbps in 5GHz band, ratified in 1999. à ¢Ã¢â€š ¬Ã‚ ¢ IEEE 802.11b: Works at 5.5 and 11 Mbps in 2.4 GHz band, ratified in 1999. à ¢Ã¢â€š ¬Ã‚ ¢IEEE 802.11e: MAC enhancements for Quality of Service (QoS), work ongoing.( Stallings,2005) 2.3) There are four physical components standards for 802.11 network : Access point- Station- -Wireless Medium -Distribution System The basic structure block ,of the WLAN network is the 802.11 basic service set (BSS). A BSS defines a coverage area where all stations within the BSS connected. There are Two BSS network topologies: Independent BSS (IBSS) Networks Infrastructure BSS Networks The first one, In the independent BSS network stations, as it shown in figure(1) are communication directly with each other. Also its called the IBSS as ad-hoc network, used to communicate all station in infrastructure network together . An ad -hoc network operates from one station to another station immediately, without any help from other device, thats mean no need for permission to access. This operation is working by using the independent basic service set(IBSS) . Figure (1) :Independent Basic Service Set(IBSS) Second an Infrastructure Basic Service Set(BSS) as we can see in figure, (2) is a type of IEEE 802.11 network consists from stations and access point(AP), which are used to communicate all stations by (BSS).This will work when first station is sending the information to AP and than the AP forward this information to station which let the information pass to a wired node and the AP passes to fixed network. This available at (http://msdn.microsoft.com/en-us/library/ff556962(VS.85).aspx) Figure (2):Infrastructure Basic Service Set (http://msdn.microsoft.com/en- us/library/ff556962(VS.85).aspx) 1] what is Fragmentation? and 2] Why we are using this Technology? 2.4) what is Fragmentation? In this section we understand the Fragmentation It is the process of break ­ing apart a packet into smaller pieces. Fragmentation is process that dividing large frame into several shorter frame. Each fragment consists of a MAC Layer header and frame check sequence (FCS), and a fragment number representing its ordered to position within the frame. Because the source station transmits each fragment independently, the receiving station reply with separate acknowledgement for each fragment (Yuguang and Kwon,2003 ) . All fragments are generate with equal size at same time, and all fragments will not change until they are transmitted in both PCF and DCF. 2.5) Why we are using this Technology? Using this technology because the Wireless LANs have high bit error rates. The probability of lasing frame is much higher for wireless links. 802.11 uses fragmentation to reduce the frame error rate. 2.6)The advantages and disadvantages of fragmentation: Advantages : To reliability of data exchange between the stations. The uses fragmentation to reduce the frame error rate and fragmentation for larger sized packets improves . Disadvantage: fragmentation will increase the overhead. (Tamer Khatteb,2009) 2.7) Distributed Coordination function (DCF) In 802.11, DCF also provides an optional way of transmitting data frames that involve transmission of special short RTS and CTS frames to the transmission of actual data frame. As shown in Fig(.3) an RTS frame is transmitted by a station, which needs to transmit a packet. When the destination receives the RTS frame, it will transmit a CTS frame after SIFS interval immediately following the reception of the RTS frame. Figure(3) Fragmentation The RTS/CTS access method (Anon.,2003) The source station is allowed to transmit its packet only if it receives the CTS correctly. Note that all the other stations are capable of updating the NAVs based on the RTS from the source station and the CTS from the destination station, which helps to combat the hidden terminal problems In fact, a station able to receive the CTS frames correctly, can avoid collisions even when it is unable to sense the data transmissions from the source station. If a collision occurs with two or more RTS frames, much less bandwidth is wasted when compared with the situations where larger data frames in collision.(Haitao ,et al.,2002) 2.8) The Fragmentation operation: A 802.11 data link layer is divided in two sub layers Logical Link Control (LLC) and Media Access Control(MAC). In 802.11, a MAC service data unit (MSDU) could be divided into a sequence of smaller MAC protocol data unit (MPDUs) as it (shown in figure 4). Fragmentation creates MPDUs smaller than the original MSDU length to increase the reliability, by increasing the probability of successful transmission of the MSDU in cases where channel characteristics limit reception reliability for longer frames. Fragmentation is able at each immediate transmitter. The process of combine MPDUs into a single MSDU is called as defragmentation . Defragmentation is adept at each immediate destination Only MPDUs with a unicast receiver address will be fragmented. Broadcast multicast frames shall not be fragmented even if their length exceeds a Fragmentation Threshold When a directed MSDU is received from the LLC with a length greater than a Fragmentation Threshold the MSDU shall be fragmented. The MSDU is divided into MPDUs. Each fragment is a frame no larger than a Fragmentation Threshold. (Yuguang and Kwon,2003 ). Figure( 4) MSDU divided into several MPDU. (Yuguang and Kwon,2003 ). ) Point Coordination function (PCF):2.9 PCF is working in combination with DCF as it shown in figure (5). PCF works suitable for high traffic load, In PCF, the AP acts in the role of the point coordinator, and it controls the medium access, If point coordinator hears there is no traffic after PIFS time gap, it sends out beacon frame Field to indicate length of time that PCF (polling) will be used instead of DCF (contention) during this time.(Stalling,2008) receiving stations must stop transmission for that amount of time The period during which PCF operates is called the contention-free period (CFP). Before the CFP begins, the AP operates under DCF, but it makes use of the priority inter-frame space (PIFS) to take hold the medium, and then sends out a beacon packet containing the duration of the CFP.(Stalling,2008) Figure (5). combination DCF PCF .(Stalling,2008) The fragmentation operation in PCF is same as DCF,but in PCF conation free period making different ,but because the DCF working with Contention period (CP) and PCF working with Contention free period(CFP) . (Yuguang Kwon,2003 ). There are some limitations on PCF which directly effetely the fragmentation, one of these limitation is the binary exponential back off , the frame need to wait even the medium is free ,because the binary exponential back off will double the random number from 15 to 1023 till the medium will be free, so this can effect the retransmit the frame in fragmentation . Other limitation in PCF has been designed to support time-limited for poor QoS performance. In particular the central pooling scheme is inefficient and complex which causes fall of the performance of PCF high-priority traffic under load, when a free station is allowed to send a frame of length between 0 and 2346 bytes, it introduce the difference of transmission time. (Dillip.2006). 2.1.0)Analysis The earliest work in data fragmentation IEEE802.11: In this section we will analysis ,In this paper(Abhishek,2003) we can analysis that polling in PCF causes overhead . In PCF, point coordinator (PC )is a central coordinator that schedules channel access for all other polling able stations in CFP. PC maintains list of poll able nodes in BSS. At beginning of CFP it polls all stations in Round Robin fashion. Nodes receiving poll respond back, either by transmitting data or there is no data frame. If station has no pending data, then it sends no frame. If station fails to do either then its result in polling time out at PC and PC resumes polling. When most stations have pending data, in order polling provide to ordered channel access and this can reduces collisions. But when few stations have pending data and rest are silent, this polling operation becomes major overhead, It adds unnecessary delay for stations with data, due to unsuccessful poll attempts for stations, with no pending data. For this reason resulting in throughput decreasi ng. Form the figure(6) we compares the overall throughput of network with 32 and 64 nodes having 16 nodes that have data to transmit. We can analysis that Effect of polling overhead is clearly visible(Abhishek,2003) Figure 6: the effect of (polling overhead )on network throughput From this paper, we can find the solution for pervious paper (Abhishek ,2003),by analysis that the overhead in PCF fragmentation is high ,so instead of allowing the transmission of multiple packets with a high data rate ,its possible to make MPDU large size to reduce the overheads caused by multiple packets transmission when channel condition is good. In Literature Review analysis we can describe it more clear(Yuguang and Kwon,2003 ). As we understand from this paper, that voice packets transmitted by use of PCF mode ,According to our analysis, PCF mode can well support packetized voice transmission using echo canceller fragmentation ,when the load are fragmented into small packets ,large fragment size such as 2000 or 2304 bits dose favour to voice traffic at the available bandwidth for data transmission.(Xiyan,al.,2003) In this paper ,we can analysis that, they propose a new rate adaptive MAC protocol with adynamic fragmentation. The major advance is the use of multiple fragmentation thresholds, for different rates to generate a new fragment from (remaining) MSDU only after the rate for next transmission is selected. With this scheme, the nodes with good channels can transmit more data than the ones with bad channel.( Byung,al.,2005) In this paper ,several methods been used to improve wireless network performance ,the result indicate as we can see in the figure (7),that the effect of fragmentation threshold can increase throughput and improve the wireless network performance, but how, the answer is when the bit error rate selected to be and the fragmentation threshold to be 256 bytes or 512 bytes, the result show that there is no any major effect on the network performance.(Walid Ajlouni,2006) figure (7),Effect of fragmentation, ( Walid Naim,2006) This paper ,proposes an adaptive control algorithm to tune the performance of IEEE802.11wireless LANs, so that traffic demands with different characteristics will be handled mostly by the MAC protocol that fits them. The algorithm aims is control the percentage of CFP duration within a super frame by measuring the throughput in PCF mode.(James,al.,2003) Chapter 3 Literature Review analysis T In this section we will be analysis ( 3.1 he out come from literature Review analysis: -Fragmentation It is the process of break ­ing apart a packet into smaller pieces. Fragmentation is process that dividing long frame to several shorter frame, Each fragment consists of a MAC Layer header, frame check sequence (FCS), and a fragment number indicating its ordered position within the frame. (Yuguang Kwon,2003 ). -The main reason we are using fragmentation is because the Wireless LANs have high bit error rates. -The period during which PCF operates is called the contention-free period (CFP). When most stations have pending data, in order polling provide ordered channel access and reduces collisions. But when few stations have pending data and rest are silent, this polling mechanism becomes major overhead, It adds unnecessary delay for stations . There are some limitations on PCF which directly effetely the fragmentation, one of these limitation is the binary exponential back off , the frame need to wait even the medium is free ,because the binary exponential back off will double the random number from 15 to 1023 till the medium will be free, so this can effect the retransmit the frame in fragmentation .(Class lecture ,Simulation Network Multimedia) 3.2 ) What will be solutions for Some Of above problems: 1) When there will be high overhead in PCF fragmentation is, so instead of allowing the transmission of multiple packets with a high data rate ,its possible to make MPDU large size to reduce the overheads caused by multiple packets transmission when channel condition is good. 2) when the bit error rate selected to be or the fragmentation threshold to be 16 bytes or 256 bytes, the result show that there is no any major effect on the network performance, so this maybe will be one of in our design and experiment we will select the above bit rat error than simulated it and observe the result.( Walid Naim,2006) 3) We go for IEEE 802.11e which introduces new coordination function called as a Hybrid Coordination Function (HCF) that is only useful for QoS network. The HCF supports channel access mechanisms, Enhanced Distributed Channel two additional Access (EDCA) for contention-based and HCF Coordination Channel Access (HCCA) for contention-free. And this stander will solve all problem with Polling and CW, which effect on fragmentation in PCF. ) Future Work:3.3 During my research i found that there is new standard been developed in 2007 , it know as IEEE 802.11e. To the best of our knowledge, there is very little literature , that deals with polling overhead in PCF .Other People have mentioned the problem earlier and there also come with some proposed solution to deal with it. also that people have mention the importance of polling for providing QoS service in IEEE 802.11 WLAN. New upcoming standard for QoS, IEEE 802.11e its called HCF (Byung,al.,2005) Chapter 4 Research Problem As i mention earliest the reason of selecting the study of data fragmentation effect in IEEE 802.11 under PCF mode is , is because in my organization they are looking for wireless network technology ,which can provide such applications like for delivering traffic for real-time applications such as Voice and data. There are some limitations on PCF which directly effetely the fragmentation, one of these limitation is the binary exponential back off , the frame need to wait even the medium is free ,because the binary exponential back off will double the random number from 15 to 1023 till the medium will be free, so this can effect the retransmit the frame in fragmentation . There for i found that IEEE 802.11 under PCF mode ,will not satisfy my Chapter 5 Design and Experiment Setup In This section i will be doing simulation , by using OPNET software as we can see in figure (8) to design and evaluate the performance of the IEEE 802.11 MAC protocol for wireless LANs. The aim of the project is to study the effect of data fragmentation in IEEE802.11under PCF mode. The main objectives of this experiment is to Study the effect of data fragmentation in PCF by choosing different bit rate error and observe the major effect on the network, as we analysis that using low bit error rate ,and give fragmentation value 256 bytes or 512bytes ,the result must show that there will be will no effect on the data transmission or on network performance. We can also do measuring response time (seconds) for PCF with 256 fragmentation and fixed data rate 5.5Mbps, and for page response time (seconds) for PCF with 256 fragmentations with fixed data rate 11Mbps.Finaly Compare the result obtain. Figure 8: WLAN Setup diagram in OPNET Chapter 6 Conclusion During my working in this project I have identify the effect of data fragmentation in IEEE802.11 under PCF in wireless network. I come out that this standard will help me in my organization to be used in library office only. The probability of lost frame is much higher for wireless links. Thats why fragmentation is used to Reduces amount of time medium is in use and Reduces probability of collisions .The IEEE 802.11 WLAN has two different channel accessing mechanisms, namely, the distributed coordination function (DCF) and point coordination function (PCF). We understand that When most stations have pending data, sequential polling provide ordered channel access and reduces collisions. But when few stations have pending data and rest are silent, this polling mechanism becomes major overhead, It adds unnecessary delay for stations with data. Also we understand that when there will be high overhead in PCF fragmentation is, so instead of allowing the transmission of multiple packets with a high data rate ,its possible to make MPDU large size to reduce the overheads caused by multiple packets transmission when channel condition is good. Anew standard has been developed in 2007 , it know as IEEE 802.11e. which support QoS. and can solve polling overhead in PCF. The References Books : Stalling,W.William.,2008.Data and computer communications 8 ed published by Dorling Kindersly(India) Pvt,LTD 482, F.I.E Delhi, India. Stalling, W,Willim., 2008, Wirless communications Network second ed published by Asoke K. Ghosh (India) Delhi, India. E-Books: Ross, John.,2008. Book of Wireless : A Painless Guide to Wi-Fi and Broadband Wireless (2nd Edition). San Francisco, CA, USA: No Starch Press, Incorporated, p 15. Available at: http://site.ebrary.com/lib/caledonian/docDetail.action?docID=10218384p00 =a%20painless%20guide%20wi-fi%20broadband%20wireless%20(2nd%20edition). Journal Papers: Tamer, M Samir ,K .,2009.Performance Analysis of Wireless Local Area Networks ,WLANs A thesis submitted to the Faculty of Engineering at Cairo University in partial fulfillment of the requirement for the degree ofMASTER OF SCIENCE. Yoon Hougwon Kim Jeonge. ,2003. Data fragmentation scheme in IEEE 802.15.4 wilerlss sensor network, Department of computer Scinse and Engieenring , Korea Unifersity Dillip, K., 2006.Quality of Service Provisioning with modified IEEE 802.11 MAC Protocol, Department of Computer Science and Engineering National Institute of Technology Rourkela Rourkela-769 008, Orissa, India Byung,S, Younggoo, K. ,2003.Throughput Enhancement Through Dynamic Fragmentation in Wireless LANs ,Student Member, IEEE, Yuguang Fang, Senior Member, IEEE, Tan F. Wong, Senior Member, IEEE. Abhishek ,G. , 2003.Dynamic Adaption of DCF and PCF mode of IEEE 802.11 WLAN, School of Information Technology, Indian Institute of Technology, Bombay . Xiyan, M ,Tamio, S.,2003.,Performance Analysis of Packetized Voice Transmission with PCF in IEEE802.11Wirelessnetwork, Dept. of electronic Engineering .Tsinghu University ,Beijing ,China.2003. Shakil ,A.,2007. Effect of Fragmentation in WLAN Systems with Interference Problems. College of Information Technology University. [emailprotected] .UAE James X.Dong,S.,2004 Mustafa Ergen Improving the Aggregate Throughput of Access Points in IEEE 802.11 Wireless LANs, and Anuj Puri Department of Electrical Engineering Computer Science University of California at Berkeley. Ziouva E. and Antonakopoulos T.2003., Efficient Voice Communications over IEEE802.11 WLANs Using Improved PCF Procedures. Walid ,HNaim ,A.,2006 Performance Enhancement of Wireless Local Area Networks,Dept. of Computer Science,Amman Arab University for Graduate Studies,P 0 Box 2925, Amman 11821, Jordan. Web Page:URL http://msdn.microsoft.com/en-us/library/ff556962(VS.85).aspx

Residential Schools Essay

Long before Europeans came to North America, aboriginal people had a highly developed system of education. There was a great deal for aboriginal children to learn before they could survive on their own. Aboriginal elders and parents passed on not only survival skills to their children, but their history, artistic ability, music, language, moral and religious values. When European missionaries began to live amongst aboriginal people, they concluded that the sooner they could separate children from their parents, the sooner they could prepare aboriginal people to live a civilized (i. e. European) lifestyle. Residential schools were established for two reasons: separation of the children from the family and the belief that aboriginal culture was not worth preserving. Most people concluded that aboriginal culture was useless and dying and all human beings would eventually develop and change to be like the ‘advanced’ European civilization. Early residential schools were similar to religious missions. Later, the mission-run schools were administered jointly by Canadian churches and the federal government, and for a number of years, residential schools became official Canadian policy for the education of Indian. . . Provincial education curriculums did not change to reflect the educational needs of aboriginal children. The elders in fact seen a major change in the way the children were acting, they would refuse to do chores and would often talk back and often became violant. The school demanded very little in comparison. Loneliness, sickness, confusion and abuse all had to be borne in lonely silence. Aboriginal children continue to have difficulties fitting in to the existing schools, which are still designed around a culture alien to their own. They were issued clothes and assigned a bed number. Aboriginal people have demanded, and received, official apologies from the Anglican, United and Roman Catholic churches which operated residential schools. All of this must have been a staggering shock to the new â€Å"student† . Many things combined to make the experience difficult for young aboriginal children. After several years away at school, children often found it difficult to speak their mother tongue. The residential school experience continues to plague First Nations education. The white man’s school contradicted everything these aboriginal children had learned at home. â€Å"The organization of the schools and the content of the curriculum conveyed to aboriginal children that the human values, the political institutions, the spiritual practices and the economic strategies of other Canadians were infinitely superior to the â€Å"primitive† ways of their traditional lifestyles. † Students began to believe that the ceremonies and rituals which harmonized the spiritual and social life of the community and gave its members a sense of personal significance and group identity, were â€Å"heathen† and â€Å"the work of the Devil.

Role of Literature in the Age of Technology

Literature refers to the realm of letters and the writings of a particular period, mostly those whose value lies in the beauty of form or emotional effect. Technology is the science of the industrial arts. Scientists have played an important role in promoting human welfare, but the benefits of science may not have reached the masses, at any rate in ample measure, without technological devices and practical applications. We live in the world of both science and technology and many people, who take a rather superficial view of things, have begun to feel that in the technological world of tomorrow the role of literature seems poor.In fact, literature in its pure form is believed to have little relation with science and technology. Science provides knowledge and power and both science and technology affect human life at several points, though the extent and utility of the applications are determined by our culture, our wisdom and our priorities. Literature reflects the moods and emotions of the times in which it is produced; it is conditioned by the reflexes which, in turn, are created by the impact of science and technology.Modern technology increasingly dominates the world, and the domination is likely to become more pronounced in future, because of the fast developments tending to subdue creative human thinking and expression. But the belief that literature would have no place in future and in futuristic calculations is erroneous. There is no reason to believe that the mechanical way of life, in which our actions are governed more and more by computer culture and electronic calculators of all types, will destroy the talent of writers, authors, poets, biographers and artists.Technology does not discourage natural, multi faceted talent; rather, it generally promotes the climate for expressions of talent in countless channels. All round prosperity helps a great deal in creating literature of lasting value, and it is technology which has made many countries wealthy and prosperous. Jawaharlal Nehru cautioned us some four decades ago that it was only through the growth of technology that our country would become prosperous.In some cases technological development and automation may cause misery, through the resultant unemployment, for instance. But it has to be noted that both science and technology also provide additional avenues for employment; countries which boast of maximum employment, or nearly so, are those which are technologically advanced. In fact, our country may go down, instead of progressing fast, if we do not keep pace with technological developments and march in step, as far as possible, with the industrialised and technologically progressive nations.It is not only for the sake of the material benefits, the comforts and conveniences of life that we must opt for the latest technological processes, even by discarding our traditional practices, but for our art and literature, too, we shall have to make the best of technology, which w ould enable talented people to put in their best in art and literature. Some people think and they have a reason for doing so, that since science demolishes faith and tradition, it tends to produce scepticism, anxiety and even tensions, and it doubts everything, even cherished values.Science has eliminated superstitions. Technology helps to provide weapons of war; war stimulates technologists, but it depresses the artists and those who prepare literary pieces. Sensitivity and the urge to create new masterpieces get suppressed; reckless destruction, bloodshed and hostilities ruin the very climate that helps to create literature and artistic masterpieces. Culture and literature, after all, indicate the cultivation of man's inner nature.Culture prompts men and women to seek perfection; they are not motivated by curiosity and the endless sense of enquiry which characterise scientists and technologists. Literature expresses feelings and innermost thoughts and ambitions, while technology has other ends and other fields to explore. Literature may at first appear to be out of place in a technological milieu, but surely scientists and technologists do not encroach upon the field of literature. There seems to be no reason why both literature and technology cannot flourish side by side.A society that is highly progressive technologically may also become rich in literature. We may take the example of the world's most industrially advanced country and the mightiest military power, the USA, where technology has registered unprecedented achievements and yet the USA has produced rich literature. Technology results in affluence and prosperity and economic prosperity promotes good literature and masterpieces in the arts. So there is no contraction involved. It is only during war and the all out preparations for war, that literature gets a setback.Science and technology, it has been truly said, have radically altered the face of civilisation, but nothing, not even the most sophi sticated mechanical devices and the most fruitful applications of new inventions, can change human nature or replace human being, who must indeed remain in effective command of all scientific inventions and their day-to-day application. Technology has created robots, artificial intelligence in the shape of â€Å"thinking computers† which can read, translate, interpret and give decisions with amazing speed and accuracy.But not even the most sophisticated technological advances can by themselves produce literature—poetry, prose, plays, novels and stories. In a sense, science and technology may be said to be of direct assistance in promoting literature, because they help to create leisure by introducing labour saving and time saving devices and by eliminating drudgery as well as duplication of effort. The leisure thus created can be put to literary pursuits. In such a context, the talk of a contradiction between technology and literature is not well founded.Scientific kno w how may thus be viewed as technology which, examined dispassionately, has an important bearing on arts and literature. Good literature makes a lasting impact on the human mind; it entertains, instructs and ennobles the spirit of human beings; it does not debase or corrupt the mind in any way, and it certainly does not lead to destruction of any section of mankind. Science and its handmaid, technology, however, have placed in the hands of man vicious and highly destructive tools in the shape of lethal weapons the like of which he has never had before.Literature builds, but technology, if misused by vicious statesmen and politicians may cause havoc on a massive scale, destroying both litterateurs and technologists without discrimination. Technology does make for concentration and centralisation of economic and political activity. A person's individuality, sense of fraternity and selflessness tend to get eroded. Where there is less patronage of art and talent, there is bound to be le ss of literature of permanent value, because the right spirit and mood are not there to promote it.The depersonalisation of modern life which, it appears, will get stronger as the years pass, is likely to discourage writers and poets; misery, anguish and a generally noisy atmosphere are hardly conducive to the production of sound literature. But we need not give up all hope of a better world tomorrow, from the standpoint of culture and literature, simply because science and technology tend to predominate over human values. It is within the power and capacity of man, provided he exercises his sound judgment and pursues the right priorities to shape a better world, where literature flourishes along with industry and technology.

Post War Of World War II - 1142 Words

Throughout Art History, it is apparent that techniques are established and flaunted to create some vivid image of a story, or a message. Up to the post war of World War II, art has delivered a scene which can be interpreted through context clues such as; current philosophies, current events, and folk-lore. Then, mainstream art had undergone a significant change in theme post World War II. New York City, United States of America, became the art capital of the world. Why? It is arguably due to Abstract Expressionist art and Pop Art known as Modernism. Modernism completely new to the world, and both of which abandoning some common core themes to art. Two famous artists whom facilitated and practiced such dramatic alterations in art culture are Paul Jackson Pollock, or just known as Jackson Pollock, and Andy Warhol. At first glance, someone with the an eye trained in art history and lore would look upon some of Jackson Pollock s art and think, â€Å"How is this even art?† Maybe ev en said with some foul language. Some may even take it as an insult to Art History. â€Å"How can someone completely disregard the divine techniques in which our classic art is founded upon?† Well, this is all in the perspective of following the suppressive laws of a mind which may not be be susceptible and/or unwelcoming to change. At first glance, Jackson Pollock s controversial work, â€Å"Number Thirty-one† is a messy, unsuspecting work of art. â€Å"Number Thirty-one† labors your eyes to follow the nearlyShow MoreRelatedThe Post War World War II1216 Words   |  5 PagesThe post-war world was one of complete ruin. More than 40 million Europeans died and at least 25 million of them were civilians that had been killed in bomb raids, concentration camps, and during famine or starvation. 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