The discovery and widespread usage of composite materials has opened new doors in the manufacturing industry. Composites are materials composed of two or more different materials. The new material has distinct and superior structural properties than the individual component materials. The most ancient composite is adobe, which consists of straw reinforced clay and was commonly used as a building material [1]. Modern composites consist of a woven fiber, which reinforces a plastic polymer shell. Two major examples of modern composites are fiberglass and carbon fiber. Carbon fiber is a very new composite material and has a more recent history than materials such as steel and aluminum. Its origins can be traced to 1879, when Thomas Edison patented the usage of carbon filaments in electric lamps [2]. …show more content…
In a relatively short period of time, carbon fiber revolutionized the manufacturing industry due to its low weight and superb structural properties. Carbon fiber is a composite material. Composite carbon fiber is composed of a woven carbon fiber which reinforces a polymer resin (usually epoxy) [3]. The carbon fibers themselves are polymers of graphite (which has a hexagonal sheet structure) rolled into a thin filament [2]. The tensile strength (resistance to tearing from being pulled) and Young’s Modulus (force required to stretch or compress a material) are extremely high in relation to the fiber’s weight. The internal strength of carbon fiber lies in the structure of the weave and the impact resistance comes from the hard plastic polymer shell. This paper will focus on the production process of Polyacrylonitrile (PAN) carbon fiber, the applications of carbon fiber in industry, and the future applications of this revolutionary
In “The Fish” by Elizabeth Bishop, the narrator attempts to understand the relationship between humans and nature and finds herself concluding that they are intertwined due to humans’ underlying need to take away from nature, whether through the act of poetic imagination or through the exploitation and contamination of nature. Bishop’s view of nature changes from one where it is an unknown, mysterious, and fearful presence that is antagonistic, to one that characterizes nature as being resilient when faced against harm and often victimized by people. Mary Oliver’s poem also titled “The Fish” offers a response to Bishop’s idea that people are harming nature, by providing another reason as to why people are harming nature, which is due to how people are unable to view nature as something that exists and goes beyond the purpose of serving human needs and offers a different interpretation of the relationship between man and nature. Oliver believes that nature serves as subsidence for humans, both physically and spiritually. Unlike Bishop who finds peace through understanding her role in nature’s plight and acceptance at the merging between the natural and human worlds, Oliver finds that through the literal act of consuming nature can she obtain a form of empowerment that allows her to become one with nature.
A group of polymer chains can be organised together in a fiber. How the polymer chains are put together is important, as it improves the properties of the material. The flexibility, strength and stiffness of Kevlar fiber, is dependent on the orientation of the polymer chains. Kevlar fiber is an arrangement of molecules, orientated parallel to each other. This orderly, untangled arrangement of molecules is described as a “Crystalline Structure”. A manufacturing process known as ‘Spinning’ is needed to achieve this Crystallinity structure. Spinning is a process that involves forcing the liquefied polymer solution through a ‘die’ (small holes).
The Raft of the Medusa is an oil painting by French artist Théodore Gèricault. This painting depicts the wreck of the French ship “The Méduse”, which crashed off the coast of Mauritania on July 5, 1816. Which caused the death of 147 people. The remaining 30 sailors were set adrift on a raft they constructed.The remaining sailors survived on the raft for only a few days eventually resorting to cannibalism in till they eventually died. The crash of the Méduse became a symbol of the incompetence of the French monarchy. Following the French revolution, Napoleon Bonaparte took power. The was outset by the sixth coalition and King Louis XVI blood line was restored to power in France. The in after two years of power, the failure of “The Méduse” turned popular opinion back against the royal family who was once again overthrown from two 13 years later. Painter Théodore Gèricault did his best to use compassion to capture complete the shire hopelessness, and doom felt that day by the sailors that day.
In conclusion what im seeing in the gay community of color is some sort of strength. Some sort of using pain and forming it into power to drive up in life. The ability to reach out and grab another members hand and form a community where they are the ones in “charge”. A place where gay people who are in the minority group can feel accepted and strong. the way they have come together is simply because they share many of the same or nearly the same past and present experiences of prejudice and hate.
The theme death has always played a crucial role in literature. Death surrounds us and our everyday life, something that we must adapt and accept. Whether it's on television or newspaper, you'll probably hear about the death of an individual or even a group. Most people have their own ideas and attitude towards it, but many consider this to be a tragic event due to many reasons. For those who suffered greatly from despair, living their life miserably and hopelessly, it could actually be a relief to them. Death affects not only you, but also those around you, while some people may stay unaffected depending on how they perceive it.
During the sixteenth century and even into the seventeenth century, scientific discoveries and new empirical ways of thinking began to emerge. This period of history is commonly referred to as the Scientific Revolution. The Scientific Revolution challenged past authorities by challenging church teachings, philosophy, and traditionally held views of humanity’s place in the cosmos.
Television has affected every aspect of life in society, radically changing the way individuals live and interact with the world. However, change is not always for the better, especially the influence of television on political campaigns towards presidency. Since the 1960s, presidential elections in the United States were greatly impacted by television, yet the impact has not been positive. Television allowed the public to have more access to information and gained reassurance to which candidate they chose to vote for. However, the media failed to recognize the importance of elections. Candidates became image based rather than issue based using a “celebrity system” to concern the public with subjects regarding debates (Hart and Trice). Due to “hyperfamiliarity” television turned numerous people away from being interested in debates between candidates (Hart and Trice). Although television had the ability to reach a greater number of people than it did before the Nixon/Kennedy debate, it shortened the attention span of the public, which made the overall process of elections unfair, due to the emphasis on image rather than issue.
In their articles, Maltzman and Sigelman, as well as Hill and Hurley, explored the connection between a representative speech giving in Washington as a means of representing their constituency. The advent and permeation of mass media and connectivity to political events into American society raises the question of whether or not representatives can use their media presence to represent their constituency? Social media and news access provide representatives with an outlet to express empathy, demographic identification, and policy platform. Has the ability of a representative to broadcast their symbolic representation and policy through mass media significantly change the representational strategies of modern representatives from the strategies of their predecessors? The opportunity to connect with a constituency through mass media could provide a representative with the privilege of representing from Washington without the need to connect at home to the same degree as their predecessors.
English Composition II has unexpectedly improved my writing into an academic level. As I studied various English reading and writing courses, this class “English Composition II” did not immediately caught my eye. However as I researched about the concepts of this class, the decision to make was not so difficult since I was lacking in critical thinking and the interpretation of works. Also as a Business Major, it made sense that the subject of English would be of interest to me and as a career requirement. During the first weeks, I thought that I would be fully prepared for this course after taking an accelerated course in English during the spring semester. However, after attending class for about a month, I certainly did not expect to learn an entirely new process of writing
ABSTRACT: This article is a portion of a comprehensive study on carbon fibre reinforced plastics. The thermal behaviour and dynamic and tensile mechanical properties of polypropylene carbon fibres composites are discussed. Carbon Fibre Reinforced Plastic is similar to fibre glass which is woven into a textile material and resin such as epoxy resin is applied and allowed to cure. The resulting material is very strong and has the best strength to weight ratio of all construction materials. It is an improvement on glass fibre-reinforced plastic, although much more expensive. Carbon Fibre Reinforced Polymers tend to be used in the manufacture of expensive sports cars, where strong and light materials are required. Expensive, competition bicycles
Despite the world being full of diverse people with varying accomplishments and skill sets, people oftentimes assume the qualities and traits of an individual based purely on the stereotypes set forth by society. Although these stereotypes are unavoidable, an individual can be liberated, empowered and ultimately overcome these stereotypes by obtaining an advanced education.
Utilitarianism is a normative moral theory put forward by John Stuart Mill and Jeremy Bentham developed in the 19th century. The moral theory of utilitarianism specifies what makes an action morally correct. Right actions are those that achieve greatest happiness for greatest number. Similarly, hedonistic utilitarianism states that the morally best action is the one that maximizes happiness and minimizes pain. This paper will further discuss the influential issue brought up by act utilitarianism and hedonism; furthermore, it will explore the matter about the experience machine and lastly, I will be taking a stand against the objection of the experience machine.
Carbon improves harden ability, strength, hardness, and wear resistance; it reduces ductility, weldability, and toughness.
Dental materials are used for a variety of reasons. The basic reason for using dental materials is to restore the tooth back to its original anatomy. Some materials are used more than others but it depends on their characteristics. Composite resin is a type of dental material. Some dental materials do not have the esthetic characteristic that composite resin has. That is why sometimes, it is more favorable than other dental materials. It is one of the most common dental materials that are used to restore a tooth back to its natural appearance.
Carbon fibers were discovered in the late 1800s by Thomas Edison. The early lightbulbs Edison created used the carbon fibers as filaments. These carbon fibers used to create the early lightbulbs had a substantial tolerance to heat, but they lacked the tensile strength of modern carbon fibers. Edison used cellulose-based materials, such as cotton or bamboo, to make his carbon fibers. He used a method called “pyrolysis” to cook the bamboo at high temperatures in a controlled atmosphere to carbonize bamboo filaments, making them fire-resistant and capable of enduring intense heat needed for luminescence.