Tuesday, July 23, 2019
Analyze the article Assignment Example | Topics and Well Written Essays - 250 words - 1
Analyze the article - Assignment Example he LED bulbs but affects the environment owing to a change in food chain from attracting more insects making them easy food for predators and being shipped away in ships. The article is about the use of LED bulbs that use 90%less energy than incandescent bulbs and ââ¬Å"lasts 100,000 hours compared with 1,000 hours for tungsten filament light bulbsâ⬠(Zolfagharifard, 2014). However, despite being good for the environment, the article basing on the findings of New Zealand-based institute Scion, states that the LED lights have a problem to insects that are more attracted by LED spectrum of light. Blue light generated by LED lights attract insects and they ââ¬Å"claim the attraction can be fatal, causing flies to be thrown off their usual path and into the jaws of predators, disrupting the food chainâ⬠(Zolfagharifard, 2014). The other concern is that LED light ââ¬Å"near ports could attract flying pests, such as the gypsy moth (pictured), that are accidentally transported by shipsâ⬠(Zolfagharifard, 2014). The article mainly deals with the impact of LED light attraction of on insects including high rate of insects being eaten by predators and transportation on ships and the relation of these on the food chain. The findings of the institute relating to the impact of the LED light is interesting and requires the need for better understanding the new technology to avoid harming the environment and altering the food chain. The impact of article to me is that it changes my view on the LED light that I have always believed to be a worthy invention and there is a need to determine ways to reduce the attraction of insects to LED
Monday, July 22, 2019
Effects of Cell Phone on Media Essay Example for Free
Effects of Cell Phone on Media Essay The introduction and use of cell phone devices or technologies has transformed everyday practices of people. The role of cell phones the so called portable media devices has gone beyond communication where they are used in complicated multimedia hybrids, personal digital assistants that is PDAs, MP3 players, personal media centres and playing of games (Cary 17). This work therefore examines the effects of cell phone on media together with related or associated issues such as how they are changing the way people interact through watching televisions, advertisement and even reading of articles. Cell phone is being used by people in accessing email and web interface, as game device, MP3 player and digital video camera. The most common one is where people have used the mobile phones to access internet. There are also a number of cell phones that can receive television broadcast over the cellular network. Such cell phones are called phone-game hybrids and include: Nokiaââ¬â¢s, N-Gage QD and Samsungââ¬â¢s new arrival that is the SCH-V450 and the Digital multimedia broadcasting handsets (Goggin 39, 2004). Mobile phones have also played a major role in communication, cultural studies and urban design where they are primarily considered as carrier of message or voice-carrier and text message transmission device. In this way cell phones have helped in carrying out advertisements. However, since the current media environment is evolving beyond the primary role of passing information, they are nowadays engaged in a number of functions in which many people view them as Sociotechnical devices, portable and interactive techno spaces which in turn form a variety of media-forms (Gatens 48 and Marvin, 26). Read more:à Harmful Effects of Mobile Phones on Students This makes cell-phone become devices which are not only viewed as telecommunication tools but also as transmedia tools. The message being conveyed here is that cell phones are considered both as communication tools and info-mediatic collections within which the technologies and practices of communication, information and media normally interact together. A part from carrying out communication or passing information, cell phones have also been in playing games, taking photographs and downloading materials such as polyphonic ring tones (Everett and Caldwell 53). This has been by the wireless application protocol (WAP) with I-mode technology that enables individuals using cell phone find it easy in downloading materials from the internet using their mobile phones. This was recently launched by the Japan Company called DoCoMo. The use of cell phones in watching news and movies has brought a lot of problems especially on the media industry. The cell phone industry has manipulated the scientific world where pornographic pictures are watched, news and other programs watched on television (Rheingold 175). Customers are lost by the media industry however this has not been proved. . The media industry has raised a lot of question on the problem posed to them by the cell phone industry. The industry looks at the cell industry to be making a lot of money since they loose their customers to them.. Entertainment nowadays can be done through cell phone. Most of the youths more so the adolescent who are the major customers of media industry are nowadays attracted by the cell phone industry (Cary 18, 1992). Games such as Gambling, electronic games, casinos, pod casting and music can be listened to using the cell phones. Cell phone has also promoted business activities. Market research, industry analysis broadcasting and even publishing are carried out using cell phone. Business men and entrepreneurs nowadays use cell phone to advertise their business. This shows that they have shifted their ways of promoting their business through T. V to mobile phones since most people own mobile phones with internet; it is easier for them to access or see the advertisement the moment they log into the internet. Media industry such as televisions that normally offer these programs increasingly face stiff competition from the mobile industry. The use of cell phone in reading novels has made it be referred to as a portable communication media and collection or convergence of technologies. As people use cell phones for reading novels it not only changes the reading habits of people but also changes other media. (Rheingold 161) For example the cell phone novel known as the deep love which was first published as text message was published as a book later(Kasesniemi18). The novel was later on produced and filmed as a movie then made into a television show. Even through the process of changing the cell-phone novel to a book, movie and into television show does not create a new medium. It has also affected other media at the same time. All the other technologies have been merged or conveyed together because of the cell phone (Levinson 132). .Conclusion The effect of cell phone on media is notable in every life. Rheingold (16, 2002) describes cell phone as a handheld communication tool that merges different technologies together. Some of the effects have been noted in reading and downloading of articles online. Online games can be played by the use of phones, movies and news that were initially watched on T. V screens can be watched using cell phones. This has brought a lot of problems on the media industry. As a matter of conclusion it can be said that cell phone has affected the media industry such as movie, film and television in a number of ways, which have been discussed above. Works Cited Crary, Jonathan. Techniques of the observer: on vision and Modernity in the nineteenth century. Cambridge; Mass: MIT Press, 1992. Crary, Jonathan. Suspensions of perception: attention, spectacle and modern culture. Cambridge, Mass: MIT Press, 1992. Everett, Anna and Caldwell J. T (Eds) Theories and Practices of Dijitextuality: New York: Routledge, 2003.
White Privilege in Politics Essay Example for Free
White Privilege in Politics Essay What is White Privilege one may ask? White Privilege is the ideological assumption and belief based in political practices placing white people and communities in position of privilege financially, politically, socially and educationally. In the book Race, Class, and Gender in the United States, written by Paula S. Rothenberg, it focuses on the time that white privilege came about politically. Donald G. Baker, in his book Politics of Race, talks about the restrictions against the Blacks. Manning Marable, in his book Beyond Black White, he focuses on elected Black officials over the years. With the help from these three books the reader will be able to see the huge amount of white privilege in political issues over the years to the present, where there are still an insufficient amount of African-Americans in politics. Rothenberg introduces white privilege when it is first of a political fashion. It was first used in a political way when White servants were given their freedom at the end of their indenture, but the Black servants were not. Whites but not Africans had to be given their freedom dues at the end of their indenture (p. 33). Whites were given more rights then Blacks. They had the right to bear arms and the right of self-defense. White servants could own livestock, while the Black servants could not. The White servants were also given the easier things to do. Blacks were not allowed to have their own family, while Whites had the right to control their wives. White men were given the right to control their women without elite interference; Blacks as slaves were denied the right to family at all since family would mean that slave husbands, not owners, controlled wives (p. 33). All of the African women were considered laborers, while the White women were just considered the keeper of mens homes. It was illegal to whip naked White men, but a person may inflict as much pain as they want onto a Black man. So, a person can see how white privilege in politics was first used, and that Blacks had basically no rights. Baker focuses on when the black slaves were given their freedom. They were free, but there were laws and restrictions basically stating that they werent a citizen. As the number of free blacks grew, there were more restrictions set for them. Many cities didnt want to have anything to do with the free blacks and some banned blacks from entering their cities: Many colonies during the eighteenth century took steps to prevent the manumission of slaves, to force out any free blacks who might be in residence, and to bar any other free blacks from entering (p. 54). Baker states that some blacks were active in politics, but none could vote: Blacks were politically active, but restrictions were usually placed on their voting privileges (p. 54). Also blacks werent able to testify against whites: Blacks, including free blacks, were generally barred from testifying against whites (p.54). So, blacks werent given any rights back then and werent seen as equals. Marable first points out that thirty years ago there were barely one hundred black officials and only five African-Americans served in Congress. Also he states that the number of black mayors of U. S. towns and cities was zero. the number of elected black officials nationwide was barely one hundred; the number of African-Americans in Congress was five; and the number of blacks serving as mayors of US cities and towns of all sizes was zero (p.205). Marable then says that today there is over forty African-Americans serving in the U. S. Congress and over another eight thousand have government positions. Today, forty African-Americans sit in the US Congress; more than forty African-Americans are mayors; and over eight thousand blacks have been elected to government positions (p. 205). Although there has been a major increase of black representation, African-American officials, elected and appointed, only make up 2 per cent throughout the nation. Even in areas with a high population of African-Americans, there are few or no elected black officials. In dozens of counties with substantial black constituencies, there are few or no African-American elected officials (p. 205). Blacks are underrepresented within the electoral structure of power and decision making in the U. S. Marable then states that many of the African-American elected officials have what he calls responsibility without authority. His example is that many of the black mayors have little control or authority over local governmental bureaucracies. This can lead to a decline in voter registration and political participation rates. So, over the years the numbers of black officials has risen, but still isnt too high. In conclusion, white privilege in politics has come a long way, through years of slavery and the African-Americans trying to gain their freedom to become equals with the Whites. There is still white privilege in politics to this day and the Blacks are slowly making there way to becoming more involved in the U. S. Congress and the government. People need to understand that this is a very diverse country of many ethnic backgrounds and cultures, and that one day white privilege in politics will be abolished and an African-American is going to be President. Works Cited Baker, Donald G. Politics of Race. Lexington, Mass. : Lexington Books. 1975. Marable, Manning. Beyond Black and White. New York, NY: Verso. 1995. Rothenberg, Paula S. Race, Class, and Gender in the United States. 6th edition. New York, NY: Worth Publishers, 2001.
Sunday, July 21, 2019
Interlaminar Fracture Major Failure in Polymer Composites
Interlaminar Fracture Major Failure in Polymer Composites Composites considered new class of materials produced that are strong, not easily corroded, and have low densities. Polymer matrix composites can further be developed to get better mechanical strength and other necessary properties. Polymer Composite materials are heterogeneous in content and an-isotropic in their mechanical behavior. If compared to metallic material, fracture toughness characterization of polymer composite are new and in the process of development.Ã Fracture may be describe as the mechanical split of a solid owing to the function of stress. Fractures of engineering material are classify as brittle or ductile fractures [18]. Brittle fractures absorb small amount of energy, while ductile fractures absorb high amount of energy, and are generally categorized by fracture which the surface is flat. Fracture toughness is associated with the sum of the energy needed to create fracture on the surfaces. For material which is brittle, such as glass the energy needed for fracture is commonly the elemental surface energy of the material [18]. For structural alloys materials at room temperature more energy is needed for fracture because plastic deformation exist in the fracture process. The function of fracture mechanics concepts has classify and quantified the main parameters that influence structural integrity [18]. These parameters comprise the range and magnitude of the stresses applied, the shape, size, and crack orientation, fracture to ughness of the material and the propagation rate of the existing cracks [18]. The fracture resistance is expressed in terms of the stress intensity factor, K and strain energy release rate is expressed in term of, G. The energy released during speedy crack propagation is an elemental material properties which not influenced by size of the part [18]. According to ASTM standard, stress intensity factor, K can be expressed as: (1) Where KI, the Mode I crucial stress intensity factor, f (g) is the dimensionless specimen geometry and loading condition factor, and the a is the preliminary crack length. The chosen size of the specimen must have small scale plasticity around the tip of the crack. One of the basic principles of fracture mechanics, the unstable fracture exist when the stress intensity factor, K at the crack tip achieve a critical value, KC [18]. The Higher the amount of fracture toughness, the greater the intensity of stress needed to develop crack propagation and the resistance of material also become greater to brittle fracture. Critical stress intensity factor can be determined by using a laboratory experiment, the limiting value being KIC / KIIC / KIIIC [18]. Fracture not only applied in metallic materials it can also applied brittle materials such as ceramics, glass and polymers. Polymer composite materials usually indicate a mixture of brittle and ductile failure processes. There a few fracture modes in polymer composites failure such as fiber breaking, intralaminar fracture or matrix cracking, matrix-fiber debonding, fiber pullout, interlaminar fracture or delamination, and etc [19]. In the polymer composite system, the matrix or resin absorbs energy in tearing, on the other hand the fibers break or damaged by brittle cleavage [20]. Factors that control the toughness in fiber reinforced composites are, the cracks deflection due to twisting or tilting movement near the fiber and debonding between fibers and matrix. Interlaminar fracture major failure in polymer composites. Its development hugely weaken the stiffness of a composite structure, which can lead to the failure during service [21] and also it hugely affected the performance of laminated composite. The interlaminar performance is determined by weakness under both shear and tensile stresses. If discontinuities exist in the material the effect of the interlaminar stress to the overall performance become more significant. This delamination and their growth can be classified by the way load is applied and the strain energy release rate, G. Delamination can be categorized in Mode I tensile, Mode II shear, Mode III tearing and shear, or it also can be loaded in combination of between these modes. Critical strain energy release rate, GC at which the delamination started to begins to extend vary significantly depending on the mode of loading [22]. Classification of delamination resistance has attract the interest researchers, hence, it result in the development of many different test methods. According to ASTM D 5528 standard which equivalent to ISO 15024 recommends using Double Cantilever Beam (DCB) method for measuring the Mode I fracture toughness GIC of polymer composites. Next, the usage of End Notch Flexure (ENF) test for Mode II fracture toughness GIIC common method used among researchers. For Mode III fracture toughness GIIIC, Ratcliffe J [23], suggested using the Edge Crack Torsion Test (ECT). However, for Mixed-Mode bending (MMB) will follow the ASTM D6671 standard which can measure fracture toughness across a wide range of combinations of Mode I and Mode II loading.
Saturday, July 20, 2019
Societies Influences :: essays research papers
Societies Influence à à à à à Society seems to influence all ages by poisioning our minds with lies and aggression. Aggression and hockey have gone together as long as sports have been around, be it the players themselves, to the parents, coaches, friends, they just seem to be an inseparable part of each other. The term violence is defined as physical assualt based on total disregard for the well being of self and others, or the intent to injure another person. Hockey seems to be promoting violence by broadcasting it all over the world advertising it to all children. There is no room for violence in our great game from my prospective. I have been around this game my entire life and I donââ¬â¢t believe we need to make violence a part of it. I have seen to many injuries, to many concusions, broken wrists and broken faces. I have seen twelve year old kids trying to kick each other with skates on. All this is a mentality, that is taught to us hockey players. This lesson is to be rutheless to a nyone and everyone. I remember my very fist lesson I was in my first year in the rep system. I was fourteen and at that age I was very large for my size. My ncoach between the first and second period told me that if I didnââ¬â¢t go out there and lay a bone crushing body check that I was going to sit next game. He believed that all I was good for was to be violent. I was fourteen scared out of my mind and my next shift I went out there and just crushed a player from the opposing team. From that point on all my coach wanted me to do for the rest of the season was fight. That year when I was fourteen I fought over twenty times in that season because of the surrounding pressure. The worst year of my life and I never ever want to see or hear of a player put in that position I was in. The game of hockey has always been violent to an extent like any other sport but in our up and coming society it seems that violence is influencing our game of hockey. In conclusion, I believe that if hockey the sport should continue we as a society should stop putting pressure on our children and friends and just let them have fun.
Essay on Mary Shelleys Frankenstein and Bladerunner -- Movie Film com
Similarities between Frankenstein and Bladerunner à Many similarities can be found between Mary Shelley's 1816 novel, Frankenstein and the 1982 movie Bladerunner . The number of similarities between these two works, created more than two hundred years apart, is staggering. A cursory look at both works reveals these similarities: Both stories feature a very intelligent person trying to play God through the creation of life. Both of the creatures were subsequently mistreated by their maker and society as a whole. In both stories, the audience is left feeling greater sympathy for the monster than for the creator. Both stories contain a very intelligent creator who seems unaware of the forces that they are dealing with. They are both fascinated with human life and wish to create it themselves. Victor Frankenstein states, "One of the phenomena which had peculiarly attracted my attention was the structure of the human frame, and, indeed, any animal endued with life. Whence, I often asked myself did the principle of life proceed?"(pg. 51) Both creators share a fascination with where life proceeds from. Is it merely intellect? Or, as in the case of Bladerunner, are emotions the defining element of human life. Both creators are expressly interested in creating a life form equal to human and Tyrell even wishes to create a life form superior to man. Both stories share a central theme, that the acquirement too much knowledge is dangerous. Throughout Frankenstein, the reader is left with the feeling that Victor's obsessive desire to defeat nature, through the creation of another life, directly led to the many tragedies that befell him, "Learn from me, if not by my precept, at least by my example, how dangerous is the ac... ...g detail of its execution." (pg 219). Roy expresses to Tyrell that he has done undesirable things during his life that were caused because of his desire to live longer than his allotted four years. Both monsters express their longing to remain alive. Even though life has not been fair to them and fait dealt them a cruel hand, these creatures still cling to life dearly, "Life, although it may only be an accumulation of anguish, is dear to me, and I will defend it.." (pg 100) Lastly both Frankenstein's monster and Roy Baty state what it means to be a slave, one to his envy and rage, and the other to a human race that spurns him. "..but I was the slave, not the master, of an impulse, which I detested, yet could not disobey...Evil thence forth became my good." Works Cited Shelley, M. (1969). Frankenstein (12th ed.). Oxford: Oxford University Press. Ã
Friday, July 19, 2019
Essay --
In the novel Jane Eyre by Charlotte Brontà «, Jane isnââ¬â¢t really social. In her early childhood she was very much isolated. Her aunt and cousins didnââ¬â¢t like her so they didnââ¬â¢t deal with her. Jane was comfortable being away because she would always get in trouble. Jane would either defend herself or just be picked on and she gets in trouble. Jane found ways to cope with being isolated, she was different and she was fine with that. After Jane has been at Thornfield for a while, she is somewhat frightened by the laughing she hears while a fire breaks out in Mr. Rochesterââ¬â¢s room. The frightening laugh gets Jane wondering if that person has committed this. Jane is able to put the fire out and save Mr. Rochester. After the fire incident, Mr. Rochester leaves for about a week or so. Since Jane and Mr. Rochester are secretly in love she constantly wonders when he is coming back. When he writes and says that he will be back soon with guests, the house begins to get ready because they donââ¬â¢t usually have guests. When everyone arrives, Jane sees that Mr. Rochester is sitting next to a women name B...
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