Essays on Nickel

Introduction

The cost of manufacturing ammonia using the Haber process plant constitutes the following components: the cost of energy, raw materials, equipment, labor and sparking substances (catalysts). Energy (gas or electricity) costs are incurred to maintain the temperature of the reaction. The Harber process is operated at very high temperatures, and pressures thus higher costs of energy are incurred. Some of the raw materials consumed in the Haber process such as nitrogen and hydrogen are recovered at the end of the process. The recovered materials are recycled back to the system to reduce the cost of raw materials. Starting and ...

There has been increasing awareness of the role of waste in the production of greenhouse gas emissions and its impacts on climate change. Diminishing natural resources has led to the recognition that what is discarded as waste has the potential to be reused as resources. Governmental legislation on prohibiting toxic materials and prevention and control of the volume of waste has helped in decreasing adverse environmental effects. There is a growing public awareness about waste prevention and its beneficial effects. The society has to replace the linear model of extract-produce-consume-dispose to closed Loop's approach of resource recovery and waste ...

3-nitrooxypropanol Report

Introduction Sheep, cattle, goats, and some wild animals such as antelopes and their families that are predominantly known as ruminants ferment plant material in their rumen. The result of this fermentation process is the formation of propionate, CO2, acetate, butyrate, and methane (Alexander et al., 2015). The carbon dioxide and methane formed escape from the bodies of these animals into the atmosphere.3-nitrooxypropanol is believed to inhibit methanogenesis in ruminant, an action that has various applications and benefits to the environment and animals. This report will consider the need for and application of the 3-nitrooxypropanol and how it would work ...

In the contemporary recent era, McDonalds has acknowledged the biggest food chain of hamburgers and related fast food items. McDonalds assert that above fifty-eight million individuals fond of junk foods show their presence in the outlet and consume burgers and fries. The historical background of the company initiated in 1940 when two brothers namely, Richard and Maurice McDonald, inaugurated a restaurant in San Bernardino, California. During the year 1948, the “Speedee Service System” was introduced, which was considered as the principles of modern food chain globally. However, the company remained small-scale for another half decade (McDonalds, 2016). In April ...

Discussion Question #1 Answer

For many years, Dell Corporation has been exerting its efforts to sustain its competitiveness in the electronic industry. The company has also been using its effective strategies that makes it one of the major computer companies on a global basis. There were various techniques that company employed in order to sustain its reputation in the market as the most preferred computer brand on a global basis. The process, to which the company has taken in order to reach the top rank and became a leader in computer business was driven by different factors especially the company’s desire to ...

Fuel Cell Technologies in Passenger Cars

Fuel Cell Technology The last decade is characterized by the rapid development of research activity in the field of fuel cells, thus, creating the conditions for their uptake in electric systems. The basic fuel cells’ operating principle has been known for 150 years. However, a variety of technical and financial problems had kept them on the margins of technological applications (Brandon & Hart, 1999). The basic difference between a fuel cell and batteries is that while batteries store energy, fuel cells directly convert a fuel’s chemical energy into electricity by an electrochemical reaction (i.e. Without requiring combustion or movement ...

Workers are important assets of a country’s organizations as well as builders of a country’s economy. Their productivity, however, is dependent on the way their employers treat them in all spheres of work including their representation in labor unions. In words of Bob Nelson, “Take time to appreciate your employees and they will reciprocate in a thousand ways.” An organization cannot be able to establish a good rapport with its customers without developing one with its employees. Labour unions or workers unions are organizations that have been established to represent workers interests to their employers regarding wages ...

Materials Extraction

These batteries consist of heavy metals such as cadmium, mercury, zinc, and nickel, which are environmental pollutants. Hence recycling them instead of incinerating them together with household waste saves our environment. These valuable metals are recovered during the process of recycling and consequently, save energy by minimizing the use of raw materials. Several materials are extracted from the used batteries and are used to manufacture new ones. Manganese dioxide, which is normally used to catalyze the reaction that produces oxygen from hydrogen peroxide, is contained in the zinc carbon cell. Dry batteries also contain metallic zinc, which is usually ...

Introduction

Stainless steel is an important component in the modern industry having various uses in the industry. This has forced new developments in its manufacturing especially in terms of its composition. This can be the steel made from aluminum, manganese, and iron. All these materials makes the finished stainless steel product unique in terms of its composition, physical metallurgy, and other factors. This paper is going to discuss the development in stainless steel technology with regards to its composition in terms of the materials used. The materials that are going to be discusses are Al, Mn, and Fe. The paper ...

In the recent times, there have been strategies put in place to develop the rechargeable lithium-ion batteries. Innovation work in Sony corporation have improved the lithium-ion battery and since the early 1990’s. Other companies such as HP, Samsung, Apple and Dell have followed in the commercialization of the rechargeable lithium-ion battery. In the new innovation work the density of energy is twice the level of a typical nickel-cadmium. This creates the level of energy density to be high and the characteristics of load are reasonable high (Hoods, 2013). Similarly, the behavior of discharge imitates the nickel-cadmium. In fact ...

The nature of poverty and the reasons for its persistence related to the behavior of the individual and the state of the social system. Nickel and Dimed: On (Not) Getting by in America by Barbara Ehrenreich shows poverty as an integral part of the capitalist system and evaluate it as a benefit for the whole community eventually led to the problematization special lifestyle in poverty. This led to a search for a cultural mechanism of depletion (displacement to the periphery) maladjusted individuals, which combine and interact with individual and social factors. However, the author believes that the poor are " ...

Introduction

The conversion of gas into liquid fuels is an innovative technology that is well-known to many people. This technique is so promising and enhancing new options for environmentally friendly manufacturing of fuels and chemicals as well as other natural gases. Looking into the large natural gas and coal reserves and deteriorating petroleum reserves all over the world, it is anticipated to play an important role in the future. Cobalt-based chemical agents are the ideal catalysts for hydrogen synthesis since they have a high FTS functionality, discernment for long-chain paraffin as well as a low process for the water-gas change ...

Nutrition

2016-04-05 This paper is devoted to the issue of the vitamin supplements. They are substances that can be added to the diet to enhance the human health and prevention of different diseases. Vitamin supplements are usually produced in the form of vitamin and mineral complexes. The prices of vitamin supplements vary from several dollars per one packaging to some hundred dollars. It depends on the quantity of tablets and their composition, manufacturer and promotion. There are a lot of the vitamin supplements in the US. The most popular are the following: Centrum, Theravit, Vitrum, Perfectil, Berocca and some others. ...

With the influx of mobile phones, one cannot survive without using this gadget. It is an indispensable device that serves a lot of functions from communication to entertainment to business. It has made communication easier and has provided opportunities for businesses to reach out to more clients. Although mobile phones were reported to have negative effects to human health, there are still numerous benefits that the society can gain from using this device for as long as it is being used cautiously. With the emergence of smart phones, the technology has paved way for many people to access a ...

Section

Introduction The purpose of this lab was to find the amount and percentage of nickel present in an unknown compound using the "mole method." The unknown nickel compound was dissolved in water and treated with dimethylglyoxime and ammonia solutions to obtain the precipitate of known chemical composition (bis(dimethylglyoximo)nickel(II)), which then was weighed and using this data the amount and percentage of nickel in the initial compound were found. The insoluble Ni(DMG)2 complex is formed in two steps. First, the dimethylglyoxime reacts with hydroxide ion formed through the ammonia hydrolysis to produce dimethylglyoximate anion: C4H8N2O2( ...

The book Nickel and Dimed: on (not) getting by in America by Barbara Ehrenreich was published in 2001. The book is an encounter on how the average American workers are trying to survive on a minimum or minimum wage jobs. The research she conducted showed that strong work ethic was not enough to provide the necessities. The necessities are shelter, food and transportation. The people who work in retail places and restaurant do not earn enough pay to make them climb the ladder of success. “On average nationwide, an hourly wage of $8.89 to afford a one bedroom apartment . . .” ( ...

Electric vehicles (EV) are receiving a great interest as an alternative to conventional transportation on oil with the purpose to decrease noise, environmental pollution by reducing carbon emissions and to reduce dependence on oil (Lowry & Larminie, 2012). Moreover, using nuclear and alternative energy including renewable allows to produce zero release of carbon dioxide by vehicles. Currently, road vehicles just reached the stage when electric cars are produced in quantity but still not widely used. First, electric cars have significantly less range. Second, it takes much more time to recharge batteries (several hours for lead acid battery) than to put ...

Structural Steel

Structural steels are the variety of steel customarily used for construction such as buildings, bridges and as reinforcements to concrete. It is used because of its strength and ductility (ability to deform substantially prior to failure). The form, shapes, and size of structural steels are dependent on the specific function that it will serve. There are several standards that must be followed when producing structural steels; these standards also include the specifications for the steel’s mechanical properties, chemical composition, specific cross section and shape profile (American Institute of Steel Construction np). Structural steels have various chemical elements which ...

Materials are the building blocks for the engineering industry in the modern world. Due to technological advancements today, engineers have had the chance to work with a variety of materials, irrespective of their physical form. In addition, technological advancements have made it possible to produce generic materials that have unique properties compared to the original materials. Copper stands out as one of the oldest metals that man has encountered. Excavators have come across items made of copper that date back 10,000 years ago in places such as Iraq. Besides, copper alloys began being used as early as 5000BC ...

A fuel cell is a device that provides electrical energy. The cell is used to extract chemical energy from hydrogen gas and convert it to electrical energy. The fuel cell has two electrical terminals, an anode and a cathode, which supply electrical energy to an external electrical load. Inside the cell, hydrogen ions combine with oxygen to form water with the release of electrical energy. The hydrogen molecules are ionized to release electrons that travel through an external circuit thereby setting up an electrical current. The hydrogen ions are then reduced to water by reacting them with oxygen. A ...

Nickel and Dimed Chapter Three Review

Selling in Minnesota Barbara Ehrenreich, the author of Nickel and Dimed, once more set her dreams on a fresh, idealized part of the country, Minnesota, where she hoped to get a slight more pleasant environment compared to her experience. However, Ehrenreich's hopes once again meet with a rough dosage of reality that she releases a defensive tone through a creep in her writing as if she has detected her enterprise is coming to existence: “If any enterprising journalist needs to experiment a low-wage form of life in the darkest Louisiana or Idaho, chief power to her. Name me gutless, ...

Iron

Iron has been known since prehistoric times. However, the beginning of its widespread use came much later, because iron rarely occurs in a pure form in nature and its preparation from ores became possible only at a certain level of technology. The importance of iron in modern technology is determined not only by its wide distribution in nature, but rather by a combination of valuable properties. It is plastic, easily forged in cold and hot conditions, amenable to rolling, stamping and drawing processes. Iron has a property to dissolve carbon and other elements – this is the basis for the ...

Structural steels are the variety of steel customarily used for construction such as buildings, bridges and as reinforcements to concrete. The form, shapes, and size of structural steels are dependent on the specific function that it will be used on. There are several standards that must be followed when producing structural steels; these standards also include the specifications for the steel’s mechanical properties, chemical composition, specific cross section and shape profile (American Institute of Steel Construction np). Structural steels have various chemical elements which give its properties. It is very important that the components in making structural steels ...

This book generates the notion of day-to-day theater, and this is the chronicling presumption of Ehrenreich in this book. There are a fury of disclaimers that the author adopts at the beginning of this book, which are aimed at distinguishing between her own endeavors and what the actors could exercise in the course of acting. This book is scientifically constructed since the author in most cases aligns herself with scientific concepts, and not performers (Ehrenreich, 2011). This book is unlike other stories that are written on fictions that only delve into the paradigm of real life without considering the ...

The increase in the average temperature of the earth's surface due to various greenhouse gases like Carbon dioxide emissions from deforestation or burning of fossil fuels due to which heat is trapped in the earth's atmosphere is called Global warming. Without this greenhouse effect, the heat would have escaped from earth's atmosphere. Micro-organisms that are found in the soil are very important for sustaining many ecological processes like nutrient cycling, the transformation of metals and decaying of plant matter. Soil micro-organisms contribute a lot to the consumption and production of greenhouse gases like methane, nitric oxide and Carbon dioxide ...

INVESTIGATING THE RESISTIVITY OF A WIRE

Electrical resistance is a physical quantity characterizing the properties of the conductor to interfere with the passage of electric current and voltage, which is equal to the ratio of the voltage at the end of the conductor to the current flowing through it (Brown, Forbes T., 2006, p. 43). The electrical resistivity is a physical value that characterizes the ability of a substance to prevent the passage of electric current. The resistance of an electrical circuit can be calculated, with the help of two equations below (Woan, G., 2010). R=VI

R – Resistance (ohms), V – Voltage (volts), I – Current (amps)

R=pLA p – Resistivity (ohm.m) L – Length (meters)

A – Cross-sectional area (meters2)

A physical ...

Introduction

The much prevalence of manufacturers of turbines in China can be contributed to the dire need for sustainability. Turbines are a form of machine that aids in conversion of kinetic energy originating from wind into electric power. Besides solar, wind energy is a much sustainable form of energy which helps in substituting the non-renewable forms. As the result, this report compiles the result of a research conducted around China about existing fan turbines manufacturers. The five best companies were chosen, and this include: Sinovel, Goldwind, Sany, Mingyang, Shanghai Electric. These companies were then evaluated in terms of the pertinent ...

Part 1: subject matter

The subject that will be covered in this paper is love. The poems chosen for this paper are all about love. Everything in these poems by Gary Soto revolves around love whether young love or matured love.The subject matter of the poems is a boy in two of his poems, oranges and that girl, while the subject matter of the other poem, water and light is a man. The difference between the two subjects is that, for the two poems where the subject matter is a boy, the love between the persona and the girl can be considered to be young love. ...

Acknowledgement

Executive Summary The relationship between ownership structure and firm performance has gained substantial attention of in the finance literature. The present study investigates the ownership structure of firms as a corporate mechanism and its impact on firm’s performance. An empirical analysis of the firms listed on NYSE and NASDAQ belonging to different sectors has been conducted to investigate the relationship between ownership structure and firms performance. The objective of the research is to identify how the corporate governance and corporate identity influence firm’s performance on the basis of three research questions provided in the following.

- ...

1. Introduction

During early days people do physical work to complete a job. The physical work made by the people made them tired and people time gets wasted. Let us take a construction work. The construction works involves major labors to construct a building, in early days people spends major time to construct a building. The labors have to give more energy to construct the building. Some of the labors even sacrificed their life by accident case inside the building. But today’s technology makes sure that the construction of any type of building can be modeled and executed within a year. Labor also ...

- Introduction

The vehicle manufacturing sector, as a dynamic arena, has undergone various changes, influences and effects, since the advent of the European Industrial revolution, and majorly so, from the input of Henry Ford’s – Assembly line model. Through its involvement in the process of vehicle manufacture, it actively contributes to the global economy, by way of revenue allotment, industry development and employment opportunities, in addition to contributing to varied environmental impacts and effects. It is involved in the development, design, manufacture, selling and marketing of vehicles, motorcycles and mopeds amongst other transport equipment. Pertinent, is the presence of the auxiliary ...

There is an increasing number of electric cars in the world, with the US expecting to have 1 million electric cars by the end of 2015. Arguably, it is easy to increase the number of electric cars but difficult to increase electricity generating capacity at the same rate. Generating capacity to cater for the number of electric cars. The basic problem with electric vehicles require an overnight charging to ensure the car is fully charged when owners need it to commute in the morning. Any given grid can provide a certain amount of excess electric supply which it can devote ...

Questions over Case Study 11.1

Identify the weaknesses in each strategy. (Hint: How do you think the bond rating agencies reacted to California’s 2003 budget?) The first dangerous strategy identified was -Delay maintenance and replacement of assets—and rely on hope (Starling, 2011). The weakness of this strategy is, in addition to posing a physical threat to the people who can be harmed by these delays, poses a very real threat to the budget. More specifically, Osborn an Hutchison (2004a) note that “avoidance becomes addictive, and the real problems fester and grow, ultimately requiring even more painful solutions (p.29)” The second dangerous strategy ...

One of the main points from BHP Billiton Corporation’s annual report about their corporate governance structure can be summarized by the following statement given by the company’s chairman himself: “At BHP Billiton, we have a governance framework that goes beyond an interest in governance for its own sake or the need to comply with regulatory requirements. Instead, we believe that high quality governance is good business, and our approach is to adopt what we consider to be the better of the prevailing governance standards in Australia, the United Kingdom, and the United States” . As of July ...

Abstract

Recently, attention has been diverted to clean, alternative and renewable technologies due to the depletion of petroleum resources and increase of the green house gases from the combustion of fuel resources. Fuel cell is the fore-runner of these technologies and has received immense impetus due to its relatively clean source of energy. Fuel-cells are devices that produce electrical energy from chemical transformation reactions. Electrodes are placed within an electrolyte medium that facilitates oxidation of fuel. In these electrochemical reactions, ions are generated that generate electricity. This electrical energy can be effectively harnessed to carry out a myriad of functions. Since ...

Life is not easy when living under the poverty line and more like a 150% effort is required each and every day. Working full time at job that pays minimum wage may provide enough money for a single individual, but it will certainly not for an entire family. Barbara Ehrenreich delves into the world of the minimum-wage workers in her book Nickel and Dimed: On (Not) Getting By in America. She seeks entry-level jobs and tries to support herself with the minimum wages from these jobs, for months at a time. Ehrenreich makes an agreeable and clear argument in Nickel and Dimed ...

Ei-ichi Negeshi is a Nobel Prize winner in Organic Chemistry in 2010 for palladium catalyzed cross couplings in organic chemistry. The Nobel Prize for Organic Chemistry that he won is being shared to his other colleagues Richard Heck and Akira Suziki. Ei-ichi Negeshi is a Japanese citizen that was born in China. They transferred to Seoul, North Korea and experienced most of his childhood days in Korea then later they transferred to Japan Accordingly, Negeshi’s motivation in developing his self-discipline as a student happened when he experienced being in the123rd place in their classroom. He then realized that, if he ...

Peace that people enjoy nowadays uninterrupted is, of course, not a new phenomenon. However, what is interesting is that the humanity has lived only several hundred years without warring for whatever reason could bring large armies face-to-face in a lethal confrontation for questionable reasons. Besides soldiers, the brute force of conflicts, the main tools of war have always been weapons indicating the state of technological advancement of nations, being the litmus paper and the benchmarks of progress. Thousands years ago, there was no such concept as a long-lasting peace, and the weaponry was a lot more different than it currently is, being used ...

Following the American Psychological Association’s Guidelines

The book, “Nickel and Dime” by Gary Soto is once again proof that the author knows how to weave seemingly pointless stories together in order to prove something greater. The novel is a highlight reel of America’s consumerist tendencies, pack mentality, and how we force those we believe do not belong to the sidelines even when they so desperately want to be a part of what we are building. Many of the characters included in the novel appear to be criminals on the surface, desperate for what may not be theirs for the taking. Society paints them in this way, ...

Cuba is the largest nation in the Caribbean. Cuba is located approximately ninety miles from the southern coast of Florida. Cuba has been the subject of a number of struggles in its history. Cuba was the final colony that gained independence from Spanish rule. The initial struggle for independence from Spanish rule in Cuba imitated in 1868. Thirty years afterwards, when the U.S. military intervened in the Spanish American War, Cuba gained its independence in 1898. Cuba’s Independence was established by the Treaty of Paris, which was conceded subsequent to a three year period (Vanderbush 57). The perspective of CIA ( ...

Electronic devices may be deemed the crowning achievement of decades-long scientific efforts in their own right, signifying the human quest for ultimate comfort. People are so used to utilizing electronic devices in their everyday activities that they seem to have become inseparable from their life. Of course, there is no denying they do a lot to facilitate human lives by connecting people, updating on the latest news, revealing weather broadcast, allowing watching movies, to name only a number of benefits. While used by many, electronic gadgets do not necessarily mean they pose no threat to human health. One should not disregard ...

(WRITER)

Introduction

The early 1900s were a period of significant change – aircraft, cars, transatlantic ocean liners – all these were coming into mainstream use, and owe their emergence to this period of technical advancement. Another lesser-remembered innovation of the time that captured the imagination of the people was the automat. The first example of automated fast food at a low price, the system consisted of a number of windows in which food was displayed. You put in a coin (initially a nickel or 5 cents later revised to a dime or 10 cents) and the window could be opened and the food taken. There were no waiters ...

Barbara Ehrenreich’s presents a clear and concise account of the methods that millions of American uses to survive the economic struggles in American. In addition, the 2001 book, “Nickel and Dimed: On (Not) Getting by in America” analyzes how individuals survive on minimum paying jobs. Ehrenreich postulates that even though these individuals work under poor economic conditions, there is a strong “work ethic” present. But, this work ethic does not help to provide the basic necessities of transportation, food, and shelter. For those individuals who work in hotels, restaurants, retail stores, and a number of other service jobs the wages are not ...

Introduction

The depletion of fossil fuels and the increased levels of vehicular that are being expressed across the world made the automobile companies to look for alternatives to the conventional internal combustible engines that run on petrol and diesel. One of the most important inventions in the field of automobile history is the hybrid engine technology. Hybrid cars combine the conventional petrol powered engines with the electric motors. A small petrol engine that is fit inside a hybrid car operates a dynamo that produces electricity (Barett nd). The electricity that produced will be in turn utilized for running the electric motor which ...

In Eudora Wetly story “A Worn Path,” the path that the old woman Phoenix Jackson walks on symbolizes the theme of the story—that repetition in life can become similar to the monotony of death. An old woman Phoenix Jackson goes to town to by medicine for her grandson. But, her grandson has died. Her body is frail, and her memory is failing. But like a path that persists in the woods, she still shows courage and resolve in going about her daily duties. She has become so accustomed to her routines that her routines are more vivid than her ...

Water Supplies in Sun Valley, AZ

Sun Valley is located in Arizona. It is situated along interstate 40. It is 31.56 square miles. Sun Valley has different water supply options. Some of these options are groundwater, surface water and reclaimed water. Groundwater is water found beneath the ground. They are usually in rocks and pores of the soil. Sun Valley is supplied by Arizona’s water supply. Groundwaters that supply Sun Valley are aquifers and wells. Main aquifers in Arizona are stream alluvial and basins fill. Ground water can also be sourced from sedimentary rock. Basin Fills are of three type’s namely carefree formation, ...

Poor, homeless and low wage workers in the society are subject to systematic injustices that are mainly out of their control. First, many educated people sometimes face it difficult to secure a job to earn them a better living. Instead, they end up getting low wage jobs where they raise a little to earn their living thus stagnating in poverty. Economic conditions are the worst cause of such conditions commonly referred to as unemployment. Nevertheless, harsh working conditions are another main cause of poor and homelessness. Some employers are very harsh and they usually put a lot of pressure to their employees ...

Final Report

Our goal is to design a system that would be used to measure the temperature by changing resistances. The system would work in a solid medium but we would also try to make it functional in liquid mediums such as oil, fuels and such other liquids. This instrument should be able to measure the temperature of the liquids from -259.15 °C to 400 °C and we should have a resolution of ±0.018 V.

Instrument Details

The RTD is made of platinum coated nickel and should be attachable to the oil tank. i.e, it should be resistant to vibration, high pressure, oil and heat (e.g. ...

Steel is an alloy of another metal, iron. In addition, it contains carbon components. The carbon content of steel metal varies between 0.002% and 2.1% according to their weight. In fact, it is the carbon component in the steel metal that makes it harder than mere pure iron. As such, these carbon atoms make it hard for any dislocations to occur in the iron crystal lattice preventing the lattice from sliding past each other. Notably, steel is the metal that is most widely used for construction purposes, as well as the most recycled metal on earth. It ranges from ...

Ludwig Wittgenstein (1889-1951) is one of the most prominent philosophers of the twentieth century. His philosophy influenced not only the various sections of philosophical knowledge, thereby extending its reach and scope, but also the development of such sciences as logic, mathematics, linguistics, the list of which is not complete. Moreover, if the twentieth century largely passed under the sign of the ideas of Karl Marx and Friedrich Nietzsche, in Wittgenstein's philosophy this century got its most profound understanding. It is all the more ironic that the philosopher did not leave a special essay on social philosophy and philosophy of history. ...

Introduction (Description of the topic and problem addressed) The United States of America has more than 250 million registered vehicles currently in use. Every year, 10 to 11 million vehicles reach their maximum usage on the road and are taken out of service. The above figure clearly explains some of the main environmental impacts that such large number of automobiles both on the roads and on those taken out of service create. The main issues associated with the automobiles when it comes to affecting the environment are centers on climate change, gas emissions, and fuel economy. In an effort ...

I Martin Luther King, Jr. wrote Letter from Birmingham Jail to emphasize his promotion of nonviolently resisting racism. King, Jr. noted that people may break laws they deem as unjust as part of their moral responsibilities. The publication of Letter from Birmingham Jail initially experienced delays, but eventually became one of the most widely published texts that enjoyed great popularity among civil rights movement supporters in the United States (US) during the 1960s (King Jr.). Various nonviolent protests against racism happened in 1963 in Birmingham, Alabama, hence known collectively as the Birmingham Campaign. The Alabama Christian Movement ...

Summary Review

Barbara Ehrenreich has written many books, but her book ‘Nickel and Dimmed’ is a classic in providing knowledge about a socio-economic issue of how does a poor, low-wage worker is able to survive in such a meager income. In this book, she begins to investigate that what are the hidden costs attached to the survival of a low wage worker and how do they cope up with those. To know more about it, she decided to spend some time of her life that were approximately three months, doing various lower wage jobs that included house cleaning, nursing, being a waitress and a sales girl serving at ...

Alloy steels are basically carbon steels to which other metal alloys have been added so as to improve properties significantly. Three alloying compounds which are used in steel include manganese, chromium and nickel. The percentage of manganese present in steels ranges between 0.3% and 1.5%. It reduces effects of impurities gathered during the production process. It also works as a hardening agent, improves toughness and strength, non-magnetic properties and causes self-hardening to prevent abrasion. Chromium ranges between 0.3% and 4%. Its purpose is to improve wear, scaling resistance and oxidation. It also improves hardness and reduces ductility. Nickel ranges between ...

reinforced with Aluminium glassy alloys

Engineering

The effects of mixing time, sintering temperature, sintering time and pressure on mechanical properties of a metal matrix composite (MMC) reinforced with Aluminium glassy alloys

Introduction

Metal Matrix Composites (MMCs) are an important class of engineering materials because they can continually be adapted to suit the needs of manufacturing and newly available technology. MMCs using aluminium as a basic ingredient can be designed to meet particular needs for high performance materials. Duralumin™ was the first aluminium alloy demonstrating the ability to result in a material with very high temperature strength after solution treatment and aging (STA). Duralumin™ or ...

Many people believe that we now live in a world where we can make decisions – women are allowed to choose if and when they want to get pregnant so they take pills to ensure they have their choice. However just like with birth control, there is a lot of debate on euthanasia. Many people are of the opinion that euthanasia should not be allowed. Euthanasia is the process of allowing someone dies willingly and has being mercy killing by many. Unfortunately it is the killing that gets many people riled up as they are of the opinion that lives should not ...

The economy of Canada is among the largest economies in the world in relation market exchange rates measured in US dollars. Canada is therefore one of the wealthiest nations in the world. This country is ranked eleventh largest economies in the world and it is one of the members of the Organization for Economic Co-operation and Development (OECD).This country is also a member of Group of Eight called G8.The service industry dominates the Canadian economy like the rest of the developed nations. The service industry in Canada therefore employs around 75% of the Canadians. The Canadian economy has also ...

The disabled character in To Kill a Mockingbird is Tom Robinson; his disability is a physical one, as one of his arms was mutilated in an accident some years prior to the events of the film. To that end, he is unable to use it in any way. Despite his physical disability, he is an extremely strong character; for one thing, he demonstrates a kindness and compassion for others, as he states that he helped Mayella (the woman he is charged with raping and beating) because he felt sorry for her during his testimony. He often took up Mayella’s requests for help ( ...

Question 1The American Welding Society space recommendations

The American Welding Society which is normally abbreviated as AWS and has its headquarters in Doral, Florida is an organization dedicated to improving the safety of welding, cutting and hot works in the country and internationally. The organization makes publications in regard to procedures and codes that are up to date with the changing technological advancement. A confined space in a welding environment is described as an area with limited space and the entry and exit points may also be limited. A confined space may also mean an area with poor ventilation which may be hazardous to the people working ...

Prelab assignment

**Ethylenediamine should be abbreviated "en". ** **Tris (etheylenediamine) nickel (H) chloride should be abbreviated "Ni (en) 3Cl2". ** 1. Describe a Lewis acid and Lewis base. A Lewis acid is usually a Cat ion that accepts electron from an unshared one. While Lewis base is a nucleophilic and more often an Anion that donates a lone-pair of electrons (Leach, 1999). 2. Using the reaction to be performed in this lab, determine the limiting reactant if 1.3 g NiCl2.6H2O and 11 ml 1.4 M ethylenediamine are reacted. Since it has less ethylenediamine required to react all of the NiCl2.6H20, then ethylenediamine ...