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Copper pipe
1 pages (250 words)
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...copper instead of using inch Advantages of using 0.5 inches copper instead of using inch Using 0.5 inches in a solar collector is more advantageous than using 1 inch copper because it increases solar radiation absorption and decreases emissions. The tubes are charged by Schrader valve 58, which has Freon refrigerant. The system easily embodies the outer heat conductance efficiency of heat collectors. In addition, using 0.5 inch copper has the advantage of passive collector system hence there is no need of electric power controls and pumps (Fred, 2010). In addition, it is easy to maintain and operate the system. Unlike solar collector that uses 1 inch copper, the one... Advantages of using 0.5 inches...
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Rosemont copper paper
3 pages (750 words)
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...Copper Company Rosemont Copper company is an Arizona based mining company whose main focus is mining copper. The company has a rich history in the mining sector. The controversial issue that surrounds the company at the moment regards the open-pit mining project whose site is south of Tucson in the Santa Rita Mountains. The name of the specific area is Helveita mining district. The vast reserves of copper in the area were discovered by two entrepreneurs in 1875. The first mining companies to explore the area were Omega Copper Company and Columbia Mining & Smelting Company (USDA Forest... Insert The Open-Pit Mine Project of Rosemont Copper ...
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History Of Copper
1 pages (250 words)
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...copper By Copper has a symbol Cu .It comes from the word cuprum which is a Latin word meaning’ from the island of Cyprus.it is man oldest metal discovered like 10,000 years an ago. A copper pendent was found in what is called now northern Iraq which is dated to about 8,700 B.C.it is said copper mining started in the Iran highlands and Middle East. From 4500 BC copper smelting sites started at places around Jordan, Egypt and Israel. By 3000BC development of copper alloys started. Examples of the earliest alloys of copper were arsenic and tin. These two alloys enabled the discovery of bronze which was easier to chuck. The alloys were harder, making alloys to be extra useful and by 2500 BC... History of...
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Chilean Copper Mine Collapse
2 pages (500 words)
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...copper min collapse. Metal Bulletin Daily, 224, 65.... Two Communication Pieces Two Communication Pieces Communication One: For the Families TO BE DELIVERED FACE-TO-FACE WITH THE FAMILY MEMBERS Words cannot express that sadness and regret we feel for the terrible accident that has resulted in your loved ones being trapped in our mine. We take the safety and healthy of each of our employees very seriously and pledge to you that we are doing everything within our power to rescue each and every one of the affected miners as quickly and expeditiously as possible. While we will certainly be focusing in this days to come on what happened, and how to prevent it from happening again in the future, our sole f...
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Chile and copper mining
4 pages (1000 words)
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...Copper Mining Introduction Chile has recently been on the headlines due to its copper mining disaster. This disaster has brought this country to the spotlight – highlighting its history and its economic status amidst the current global economic crisis. This paper shall discuss Chile as a country and its copper mining industry. This paper is being undertaken in the hope of gaining a comprehensive and academic understanding of Chile as a state. Discussion Chile is located in South America and is one of the continent’s most prosperous countries1. Throughout the years, it has not encountered much social unrest except for the bloody coup seen in 1973 under the reign of dictator Augusto... Chile and...
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The world price of copper
5 pages (1250 words)
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...Copper Number: ial Time: This report aims to address the following Use economic analysis to explain the changes seen in the price of copper over this period; and (2) Explain why there were such large fluctuations in price as seen in the graph. Table of Contents Abstract 2 World Price of Copper 4 Reference List 9 The World Price of Copper The development of copper metallurgy has been one of the most significant breakthroughs in the history of human life (Joseph and Kundig, 2001, p. 1). It has been viewed by early settlers as of equal importance with the discovery of fire and has contributed greatly to the historical, cultural, and economic development of early civilizations... ?The World Price of Copper...
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Chemistry Practical Assignment - Copper carbonate
4 pages (1000 words)
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...Copper carbonate if heated will produce gas and by measuring the volume of gas, we can experimentally establish the correctness of both the equations provided to us. The important thing for finding the correct equation is that the volume of one mole of gas at NTP is 22.4 liter and using this equation we can back calculate the mole or mass of carbon dioxide formed from the copper carbonate used for the experiment (Determining the Correct Equation for the Decomposition of Copper Carbonate, 2003) and hence find out the correctness of the eauation provided. Equipment and Apparatus required for conducting the experiment: The following apparatuses... are required to conduct the experiment...
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Electroanalytical Technique (Voltammetric techniques) critical review
8 pages (2000 words)
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...electrodes are used in voltammetry whereas in potentiometric measurements the recently developed solid-contact cadmium and lead ion selective electrodes (Cd2+ -ISE and Pb2+ -ISE) are used. Albeit the two methods have similar sensitivity, potentiometry possesses a high selective capability in the presence of excess metal ions which may interfere with stripping voltammetry. It also addresses specific analytical problems for instance in measurement of copper, a Cu ISE could be used against antimony and bismuth ions which usually affect anodic stripping voltametric measurements. Voltammetric techniques have also been in use in the...
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Electroanalytical Technique (Voltammetric techniques) critical review
8 pages (2000 words)
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...electrodes are used in voltammetry whereas in potentiometric measurements the recently developed solid-contact cadmium and lead ion selective electrodes (Cd2+ -ISE and Pb2+ -ISE) are used. Albeit the two methods have similar sensitivity, potentiometry possesses a high selective capability in the presence of excess metal ions which may interfere with stripping voltammetry. It also addresses specific analytical problems for instance in measurement of copper, a Cu ISE could be used against antimony and bismuth ions which usually affect anodic stripping voltametric measurements. Voltammetric techniques have also been in use in the pharmaceutical industries. Techniques applied here include... Electroanal...
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Over 30 Workers Trapped After Chilean Copper Mine Collapse
4 pages (1000 words)
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...Copper Mine Collapse When it comes to dealing with many people, in an audience, it is extremely crucial to figure out what is going to be said to them and how it shall be done. It is also necessary to know how much shall be said to them. Sometimes the audience may be willing to hear all the information but lacking the capacity to handle the magnitude of the information, (O’Rourke, 2010). This is because the information may be carrying a weighty message to the audience. Therefore, it becomes exceedingly important to prepare the audience mentally and send the sensitive information with a lot of caution. Information is powerful. It can have devastating effects if it is not handled... were...
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Over 30 workers Trapped After Chilean Copper Mine Collapse
4 pages (1000 words)
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...COPPER MINE COLLAPSE According to Whelchel and Dauble, Chile, mine collapse that happened on 5 August 2010 trapped over thirty workers inside the mine (2011). The workers in Chile were working at the gold and copper San Esteban mines, near Copiapo city when the mine collapsed. The mine was about 300meteres deep from the ground surface. As the excavation process continued to rescue the trapped workers, another collapse happened two days later hence, halting the rescue process. Therefore, the process became more challenging and the government of Chile had to be very careful on the information communicated from the collapsed San Esteban mine. The rescue team had to drill... ? WORKERS TRAPPED AFTER CHILEAN...
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Copper Price Rises in UK after Chile Strike
9 pages (2250 words)
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...copper, then the increase of wages. If we are to analyze, if you have the majority of the shares, then you are considered as one if not the pillar of a certain company. However, we cannot discredit the fact that workers are also considered as pillar of the company which is infact they are considered as the workhorse and the frontline in making money. In the case of Escondida, BHP Hilton, has the share above anyone else that is why BHP Biliton can be considered as the main stakeholder in the said mining activity. To further understand... Considering the fact that BHP Biliton is the majority owner of the said mining (Escondida) firm, and the workers are demanding for high income due torise of prices of...
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Extraction of Metals from their Ores Worksheet
6 pages (1500 words)
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...Copper Chalcopyrite CuFeS2 It is used... Extraction of Metals from their Ores Worksheet The exercise you are going to complete uses a collection of websites, data tables and charts to lead you through key ideas that you need to in order to understand the relationship between reactivity, price and extraction methods of different metals. You will need to use this template to fill in the tables and answer the questions below. You might find the three websites below useful to refer to. However you must not copy and paste from these websites but write the information in your own words. If I suspect that any information has been copied and pasted I will put it through a program called turnitin and you will los...
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The Open-Pit Mine Project of Rosemont Copper Company
4 pages (1000 words)
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...Copper Company Rosemont Copper company isan Arizona based mining company whose main focus is mining copper. The company has a rich history in the mining sector. The controversial issue that surrounds the company at the moment regards the open-pit mining project whose site is south of Tucson in the Santa Rita Mountains. The name of the specific area is Helveita mining district. The vast reserves of copper in the area were discovered by two entrepreneurs in 1875. The first mining companies to explore the area were Omega Copper Company and Columbia Mining & Smelting Company (USDA Forest Service 7). However, the area came to a shut-down after the mine... ?(Insert The Open-Pit Mine Project of Rosemont Copper...
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Analytical Chem
5 pages (1250 words)
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...copper electrode was placed. In an adjacent well 1 mL of the titrant and a silver wire electrode was placed. The two wells were connected with a KNO3 salt bridge and the two electrodes were connected to the leads of the pH meter. The potential of the cell was measured. 6. The electrodes were disconnected and cleaned. The 24 well plate on the balance was weighed on the balance. 1.00 mL of the unknown solution was added with the 1000L pipette to a well adjacent to the copper well, and mass of the solution was determined. 7. The electrodes and salt bridge was set... Microscale Potentiometric Titration of Halides Microscale potentiometric titration of a solution of two halides (KI and KCl) was carried...
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Anti-copper Therapy among Pregnant WomenCan Lower the Risk of Wilsons Disease in Their Children
9 pages (2250 words)
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...copper Therapy among Pregnant Women Can Lower the Risk of Wilson’s Disease in Their Children A Hypothesis Since the unborn children are vulnerable to their mother’s health condition, the medical intervention using anti-copper therapy, especially to expectant women, can reduce the probability and risk of transmitting Wilson disease to the foetus. Introduction Despite the rare cases of Wilson disease, there are quite a substantial number of children being diagnosed with the infections. This autosomal disease is really recessive and it is a consequence of copper toxicity, basically affecting the liver and brain. As a result of ATP7B gene mutations, it creates substantial effects... on the...
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Anti-copper Therapy among Pregnant Women Can Lower the Risk of Wilsons Disease in Their Children
3 pages (750 words)
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...copper Therapy among Pregnant Women Can Lower the Risk of Wilson’s disease in Their Children Unborn children are vulnerable to their mother’s health condition, the medical intervention using anti-copper therapy, especially to expectant women, can reduce the probability and risk of transmitting Wilson disease to the fetus. Despite the rare cases of Wilson disease, they are a number of children being diagnosed with the infections. It is a recessive and it as a result of copper toxicity. It affects the brain, liver and also it creates substantial effects on the excretory system. It leads to accumulation of copper in the body due to the failure of binary excretion (Walshe, 124). Therefore... , the...
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COPPER ORE CONCENTRATE SITE OPERATIONAL AND LOGISTICS RISK ASSESSMENT - (DESK BASED REVIEW)
25 pages (6250 words)
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...Copper Concentrate Storage & Load-Out Facility Risk Review - British Colombia 1. Introduction – General Information TCM (Thompson Creek Metal) is a developing, diversified North American mining company. It is operating in the Mt. Milligan copper and gold mining facility, which is located in BERG, British Columbia. It is under construction and development phase. It is situated nearly 90 miles northwest of Prince George in central British Columbia, Canada. The 1st phase of the concentrator started on August 15, 2013. The very next month, in September 2013 it entered into the production of copper-gold concentrate, leading to the first truckload... ? Table of Contents Introduction – General...
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Does the amout of Solution effect the Crystalization of Copper Sulfate
5 pages (1250 words)
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...Copper Sulfate? The purpose of this investigation is to determine how concentration affect rate of crystallization of copper Sulfate. The variable in these experiment include; strength or concentration of copper sulfate which is an independent variable, rate of crystallization in a certain period of time which is a dependent variable, temperature as controlled variable and the size of containers and the volume of solution as constants. The hypothesis to verified in this experiment can be stated as; Increase in concentration result in increase in the rate crystallization In this experiment, copper sulfate solutions with varying concentration... ? Does Concentration affect the Rate of Crystallization of...
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COPPER ORE CONCENTRATE SITE OPERATIONAL AND LOGISTICS RISK ASSESSMENT - (DESK BASED REVIEW)
25 pages (6250 words)
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...Copper Concentrate Storage & Load-Out Facility Risk Review - British Colombia 1. Introduction – General Information TCM (Thompson Creek Metal) is a developing, diversified North American mining company. It is operating in the Mt. Milligan copper and gold mining facility, which is located in BERG, British Columbia. It is under construction and development phase. It is situated nearly 90 miles northwest of Prince George in central British Columbia, Canada. The 1st phase of the concentrator started on August 15, 2013. The very next month, in September 2013 it entered into the production of copper-gold concentrate, leading to the first truckload... Table of Contents Introduction – General...
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Terminating Fiber Optic Cable Using a Polish Method ,Testing Wired Media Both Copper and Fiber
2 pages (500 words)
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...Copper and Fiber Terminating Fiber Optic Cable Using a Polish Method For termination of fiber optic a connection must be provided to a device, for instance to a wall outlet or other equipment that will allow for connecting the cable to other additional cables or systems/devices. Additionally, the basis of fiber optic termination is to generally assist fiber cross-connection and light wave signal’s supply. In addition, suitable fiber optic termination will protect the fibers from dirt or damage as it is used to avoid extreme loss of light, thus, it makes a network more reliable to implement more smoothly as well... it vertical to the polishing surface. Now at this time we will place a sheet...
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Imagination and Creativity
8 pages (2000 words)
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...copper cylinder. When filled with vinegar - or any other electrolytic solution - the jar produces about 1.1 volts. But, such ancient knowledge in the history of electricity bears no known continuous relationship to the development of modern batteries. Its form, though, is nearly identical to the principles that are in use today. The German physicist Otto von Guericke experimented with generating electricity in 1650. The English physicist Stephen... Imagination: A way to the Creativity Imagination is the father of invention. Mental imagery has been a fairly constant topic in philosophy of mind, as has artistic creativity in aesthetics, and both issues have been hotly debated in psychology and cognitive...
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Continental Philosophy
8 pages (2000 words)
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...copper cylinder. When filled with vinegar - or any other electrolytic solution - the jar produces about 1.1 volts. But, such ancient knowledge in the history of electricity bears no known continuous relationship to the development of modern batteries. Its form, though, is nearly identical to the principles that are in use today. The German physicist Otto von Guericke experimented with generating electricity in 1650. The English physicist Stephen Gray... Imagination: A way to the Creativity Imagination is the father of invention. Mental imagery has been a fairly constant topic in philosophy of mind, as has artistic creativity in aesthetics, and both issues have been hotly debated in psychology and...
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Industrial production of aluminium from bauxite and recycling
5 pages (1250 words)
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...electrodes. The suspended electrode serves as the cathode. Such is the case that when electric current passes through this cell, the aluminum ions moves from the middle layer to the top layer to be discharged in the form of pure aluminum. As this occurs an equivalent quantity of aluminum moves from the bottom layer to the central layer leaving impurities at the bottom. The process ends with continuous collection of pure aluminum from the trapping hole. The aluminum extraction results in two types of products. The first is the purity grade products, which are characterized with 100% aluminum presence. The other is the alloys, a case that allows a deliberate addition... ALUMINIUM FROM BAUXITE AND...
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Dye-Sentitised Solar Cells
8 pages (2000 words)
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...copper indium gallium selenide (CIGS) etc. However, the third generation of PV cells utilize organic materials, such as thin films of nanocrystalline, and conductive polymers, which provide two key advantages - higher efficiency and lower cost of fabrication, along with several others. These cells utilize a solid, liquid or gel phase electrolyte forming the contacting phase between the thin films of electrodes, and are therefore classified as photo-electrochemical cells.4... ? Flinders Faculty of Science and Engineering School of Chemical and Physical Sciences Nano8711: Advanced Na chnology Topic Coordinator: Professor. Joe Shapter Assignment 1-Essay Writing: Dye-Sensitized Solar Cells Author: Yousef...
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Microbial fuel cells and how cay they produce electricity
7 pages (1750 words)
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...electrode, thereby conserving energy for growth as the cell is capable of donating its electrons to the electrode. Introduction It is evident that fossil fuels are limited sources for energy on the planet and they are on the verge of exhaustion. Consumption of fossil fuel has augmented climate... ?"Microbial Fuel Cells" Electri has become the most vital component of human survival. To meet the mounting demands for electri new possibilities are constantly being excavated. Micro-organisms are exploited to meet these rising demands. Intensive studies have been carried out in recent years to utilize micro-organisms as a resource for energy generation. The present experiment was conducted to understand the...
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Introduction to Welding
11 pages (2750 words)
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...copper and nickel have only negligible effects. As the equivalent carbon content rises, the weldability of the alloy decreases... Introduction to Welding Conventional wisdom defines welding to be a process of joining two or more pieces of fusible material, most often metals. Itfalls in the category of Fabrication processes. The basic welding process is carried out in 3 steps. First, heat is applied by some method onto the metal pieces, such that majority of the heat is concentrated on the areas to be bonded. This causes the metal to melt and on subsequent application of pressure, the liquid regions undergo a process called coalescence. When cooled, this coalesced liquid metal mixture undergoes...
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Bag phone to Smart Phone ( Conception, to Design, to Implemetation and on to Operation then Decommission. CDIOD.)
10 pages (2500 words)
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...Copper is mined and chemical treated and electrified to separate pure metal for the circuit board ( Fitzek & Reichert, 2007). Manufacturing. Each part of a cell phone goes through the process of manufacturing. The circuit board is designed using fiberglass and plastics and is plated gold. The wires and circuits of the circuit board are coated, soldered, and glued. The LCD comprises of liquid crystals that layered between the plastic or glass. The batteries... ? BAG PHONE TO SMART PHONE. By Introduction. This is an engineering report that discusses the evolution of mobile phones. The paper uses Conception, Design, implementation, Operation and Decommission approach to explain the life of a mobile phone....
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Silver and gold
10 pages (2500 words)
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...electrode as slime, while copper is deposited on the negative electrode. Impurities are then removed through roasting, leaching and smelting. The metals are made into blocks that are employed as anodes in another electrolysis process. When electricity is passed through the silver nitrate solution, pure silver deposits are realized on the cathode. Silver and the Environment Silver compounds are mostly nontoxic, except those containing poisonous anions like arsenate and cyanide. Compounds used in the production of silver can be harmful to bacteria and to water organisms but silver compounds such as silver thiosulfate and silver sulfide are nontoxic. However, care must be taken when... ?Insert Insert Grade...
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Sensors
10 pages (2500 words)
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...copper and Balco alloys for the elements (Fraden, 2004, p. 528). Element Temperature range(°C) Nickel -100 to 260 Platinum -200 to 800 Balco -100 to 204 The temperature measured is linear to the change in resistance. Resistance temperature detectors are more accurate than thermocouples and give stable values of temperature over a wide temperature range. Elements used for the detectors are classified according to their resistance at 0°C. The most common used detectors show a resistance of 100 Ohms at zero degrees Celsius. The most commonly used detector elements are made from platinum. Platinum is suitable because it is chemically inert that is it can withstand corrosion...
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Solar pawered heat pump
12 pages (3000 words)
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...electrodes. Then shortly after the discovery of the ultraviolet ray capacity there was the invention of the first solar heater. In 1908, the copper collector invented by William J. Baileys replaced the previously made collector. It used copper as the insulator. Robert Millikan in 1916 experienced the photoelectric effect eleven years after Albert Einstein published a paper on photoelectric effect. Shortly after the Second World War, solar equipment started having popularity with the people in the United States of America. In 1958... Solar Powered Heat Pump By + Introduction Since the 7th century B.C, man has used solar power for different reasons, from using the magnifying glass, to the more...
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RF Burns - causes and prevention
8 pages (2000 words)
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...copper wire during MRI. The first is direct electromagnetic induction in a conductive loop, the second is induction in a resonant conducting loop, and the third is the electric field seen in coupling with a wire... ?Radiofrequency Burns – Causes and Prevention Introduction Magnetic Resonance imaging is a medical imaging technique used to visualize the body’s internal structures. MRIs have three types of magnetic field. First, is a large superconducting magnet producing the main magnetic field; second is the Radio Frequency field (RF); and third are the gradient magnets. In relation to the radio frequency field, risks of RF burns have been known to arise. Most RF burns are however mostly caused by local...
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Component of chromium
6 pages (1500 words)
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...copper, lead, nickel, cadmium, molybdenum or zinc. Chromium (III) is involved in glucose and cholesterol metabolism. Hence it’s regarded as an essential trace metal in human body. Hexavalent chromium has been attributed causing the pollution and toxic effects in the environment. Hexavalent chromium can be mined incorporated in chromium trioxide, chromate and dichromate salts. Hexavalent chromium is mainly used in industries that manufacture dyes, pigments, leather tanning, steel manufacture and chrome plating. In the past decades, hexavalent chromium compounds and its derivatives are extensively used... ? Chromium Toxi An Overview of Pollution Extent, Effect and Remediation Strategies. Chromium is a...
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Component of chromium
6 pages (1500 words)
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...copper, lead, nickel, cadmium, molybdenum or zinc. Chromium (III) is involved in glucose and cholesterol metabolism. Hence it’s regarded as an essential trace metal in human body. Hexavalent chromium has been attributed causing the pollution and toxic effects in the environment. Hexavalent chromium can be mined incorporated in chromium trioxide, chromate and dichromate salts. Hexavalent chromium is mainly used in industries that manufacture dyes, pigments, leather tanning, steel manufacture and chrome plating. In the past decades, hexavalent chromium compounds and its derivatives are extensively used... Chromium Toxi An Overview of Pollution Extent, Effect and Remediation Strategies. Chromium is a...
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Neurology
6 pages (1500 words)
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...electrodes to the brain nucleus; thus... Neurology Introduction Neurology as a medical area, when integrated with nutrition, can result in thedevelopment of various aspects of the analysis. In this project, the analysis shall entail the definition of relevant medical terms and diseases, in relation to the aspect of nutritional requirement of patients (Lewis 78). Question 1 a. Alzheimer’s disease refers to a neurological disorder or neurodegenerative chronic disease and type of dementia that causes difficulties with a person’s thinking, memory, and behavior, as a result of the death of the brain cells. It starts slowly but gets worse with time with the core symptom being short-term loss of memory. However...
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Instrumentation Systems
4 pages (1000 words)
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...Copper, Alumel (composed of Nickel and Aluminum), Chromel (composed of Nickel and Chromium) and Constantan (composed of Copper and Nickel). (Kester 175) Some of these are: Figure 2: Common Thermocouples (Kester 176) The principle of working of Thermocouples is based on the fact that when two metals having different work functions are placed together, a voltage is generated at the junction which is nearly proportional to the temperature. The heat at the junction causes the thermocouple to produce an emf at the output terminals. This emf is proportional to the temperature, hence enabling temperature sensing. (Sawhney 340... K.S.Preeti, ID 21824 Order Number: 256963 Instrumentation...
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Electromagnetism and Mind Control
10 pages (2500 words)
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...electrodes touching a person's scalp (Beckley 32). Measurements of such brainwaves present strong insight into brain principle and an important... Lecturer ELECTROMAGNETISM AND MIND CONTROL Introduction Light, microwaves, x-rays, and TV and radio transmissions are all kinds of electromagnetic waves that can control minds of people. They are all the same kind of wavy disturbance that duplicates itself over a distance called the wavelength. Electromagnetic waves comprise of an amalgamation of oscillating electrical and magnetic fields, perpendicular to each other. This is complicated to visualize, however, the waveform has similar distinctiveness of other types of waves (Evans 34).The creation and...
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Steel making
6 pages (1500 words)
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...copper, lead antimony etc, to reduce metal oxides and to control alloy composition. Vacuum Induction Melting is used to produce Nickel base and Cobalt base superalloys for aircraft engines. Consumable electrode vacuum arc re-melting is used especially to remove hydrogen and for refining titanium alloys for aircraft applications. Electroslag refining process remelts a preformed electrode of the metal into a water cooled crucible by means of heat from electrical resistance developed in molten slag and further refines the molten steel... STEEL MAKING Academia-Research Order No. 1168745 Writer Id. # 21516 INTRODUCTION:...
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Magnetisation Behaviour of Transition Metals and Ferrites
35 pages (8750 words)
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...copper and silver, although iron and titanium are the most abundant transition elements and the majority of catalysts for industrial reactions involve transition elements. Magnetisation refers to the exposure of a metal to a magnetic field causing the metal to be magnetised with the level of magnetism being a function of the strength of the magnetic field (Cullity and Graham, 2009). In a more technical sense, magnetisation was described by Lalena and Cleary (2010) as a “large scale ordering among the atomic elements comprising the sample, such as these atomic moments are aligned parallel to one another” (p. 312). Meanwhile, temperature dependent... ? Magnetisation Behaviour of Transition Metals and...
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Profile Toxicology
13 pages (3250 words)
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...electrodes, in solder and roofing material.(Martiez , Nagae , Zaia , & Zaia 2004). Environmental fate and importance of Pb The fate and behavior of Pb in the environment is quite complex because of the many compounds of Pb and that can be found and the natural variability of natural systems. In the atmosphere, Pb is in the form of particles and is removed by rain of gravitational settling. In water, solubility of Pb... . (2012). Determination of LC50 of Lead Nitrate and Copper Sulphate in Common Carp ( Ciprinus carpio). American-Eurasian Journal of Toxicological Sciences 4(2), 60-63. Parrish, P. R. (1995). Acute toxicity tests. In G. M. Rand (Ed.), Fundamentals of Aquatic...
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PENTACENE BASED ORGANIC MIS STRUCTURES: STRUCTURAL ANALYSIS AND ELECTRICAL PROPERTIES
10 pages (2500 words)
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...copper, etc. Conductive polymers such as Pentacene, Polyacetylene, Polyyaniline, etc are not only more flexible and less expensive... Introduction to Pentacene Based Organic MIS Structures Several applications use organic electro-optics and electronic devices due to the revolutionary developments made in the organic thin film transistors (OTFT), organic light emitting devices (OLED), photo-detectors and photo-voltaic cells [1]. These organic electronic devices can be fabricated at low price and low temperature due to the flexible nature of the organic electronic materials, which are the conductive polymers, used in these devices, which is not attainable from their inorganic counterparts such as silicon,...
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An Evaluation of Application of Study Skills
9 pages (2250 words)
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...electrode (Ritchie, 2000). At the same time, the application of carbon as a negative represents the lithium ion system along with lithium interaction into the carbon preventing the use of lithium metal in the manifestation of negative electrode with the hazards, which could be observed from possible uneven dendrite formation along with lithium plating. However, a new electrolyte system has been evolved and developed... page: The Development of Rechargeable Battery Technology Anode Development The existing rechargeable or secondary batteries avail different forms of carbons. Currently, lithium ion batteries, the leading forms of carbon, include hard carbon, graphite and microspheres as the negative...
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Lightning protection of photo-voltaic
20 pages (5000 words)
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...copper is preferable to minimize the effects of partial current induced by lightning hits. (H. Becker, W. Vaaßen, and F. Vaßen, page2257-2260) How is the surface area of Photovoltaic panel determined? PV solar surface area is a term that the manufacturer uses to determine the efficiency of the module. For the purpose of simulation, solar surface area is calculated by making use of calculated power and efficiency. The formula for solar surface area is given below: PV Solar Surface Area = Nominal output (STC) / (1000 W/m² * ETA (STC)) Where: ETA= efficiency STC= Standard Test Condition In some of the cases, the calculated solar surface area may differ from Gross PV surface area... Lightning Protection...
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Oxaliplatin
14 pages (3500 words)
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...electrodes in the medium led to arrest of cell division of these bacteria without killing them... Oxaliplatin: A Study of the effect of Oxaliplatin Genotoxi on Human Lymphocytes by using Various Cytogenetic Techniques Introduction One of the great success stories in the evolution of cancer chemotherapy is the discovery and development of platinum complexes. This was ascribed to the pronounced activity of cisplatin, specifically in testicular and ovarian cancers1. Before going into the history of discovery of oxaliplatin, it is important to define this effective chemotherapeutic agent. This is a derivative of clinically useful platinum complex cisplatin class of compounds, which are considered to exert...
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Magnesium analytical methods
25 pages (6250 words)
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...Copper, % 0.005 to 0.1; Iron, % 0.002 to 0.1; Lead, % 0.001 to 0.5; Manganese, % 0.01... ?Magnesium Analytical Methods I. Introduction 1 Definition and History Magnesium is an important element in medicine, industry, consumer products and biology. It plays important role in ecological and geological systems as well. As such, understanding the analytical methods for interpreting magnesium levels is crucial to chemical analysis across a diverse range of scientific and industrial endeavors. In order to better understand magnesium and its interactions, it is important to examine fundamental of the element that have been previously pioneered. This knowledge sets the stage for application of contemporary...
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Solar Powered Heat Pump System
23 pages (5750 words)
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...electrodes for silicon-based solar cells. This material has chemicals, which are not easily affected by a reducing environment (Verma & Vijayan 2013). Transparent cover traps the infrared radiation, reduces heat losses and protects it from adverse weather conditions. Semiconducting materials provide higher efficiency. It includes the use of various forms of silicon, such as monocrystalline, polycrystalline, and other compounds like cadmium telluride and copper indium gallium selenide/sulphide. Other materials and technologies under study and scrutiny by researchers include ‘various forms of organic semiconductors, dye-sensitised cells, organic-inorganic... Powered Heat Pump System Solar Technology for...
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Waste Water Management
40 pages (10000 words)
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...Copper, lead, mercury, and selenium Hazardous Wastes Chemical wastes: toxic (poisonous), reactive (capable of producing explosive or toxic gases), corrosive (capable of corroding steel), or ignitable (flammable) Excess Organic Matter Fertilizers and other nutrients to promote plant growth Sediment Soil particles present in large amounts Infectious Organisms Disease-causing organisms - considered pollutants when found in drinking water In this work, the focus lies on water treatments that help to remove non-biodegradable organic... Table of Contents 2 Overview: Waste water...
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Post-laboratory Assignment
2 pages (500 words)
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...Copper (II) nitrate from copper Molecular Cu(s) + 2HNO3 (aq)= Cu (NO3)2(aq) + H2 (g) Ionic Cu(s) + 2H+ (aq) = Cu+ (aq) + H2 (g) Step 2: Copper (II) hydroxide from copper (II) nitrate Molecular Cu (NO3)2(aq) + 2 NaOH (aq) = Cu (OH) 2(s) + 2NaNO3 (aq) Ionic Cu²⁺ (aq) + 2OH⁻ (aq) = Cu (OH) ₂(s) Step 3: Copper (II) oxide from copper (II) hydroxide Molecular Cu (OH) 2 (s) = CuO (s) + H2O (l) Ionic Cu (OH) 2 (s) = CuO (s) + H2O (l) Step 4: Copper (II) sulfate from copper (II) oxide Molecular CuO (s) + H2SO4 (aq) = CuSO4 (aq) + H2O...
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Chimestry
2 pages (500 words)
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...copper, were compared. This involved comparing the conductivity of both iron and copper, Hardiness, and brittleness. The observations were made and recorded. In testing for conductivity, the metals were heated and time taken to heat up observed. In comparing for brittleness, the wires of the respective metals wire bent and the number of times the wire was bent before breaking observed. Data and Observations Conductivity After heating copper and iron to test... September 8, Metals and Corrosion Experiment Introduction A metal is defined as substance containing high electrical conductance, which has luster and is malleable. Metals loose electrons forming positive ions known as cations. There are various...
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Questionaire
1 pages (250 words)
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...copper industry has been affected by challenges such as logistic issues,poor transport and depleting natural resource. The questionnaire was aimed at evaluating the responses from five workers from different companies on issues regarding the activities conducted in the company. Profitability of the company and challenges facing the company were also discussed. It is evident that all the company interviewed meets their objectives in mining and generates high returns from its activities. Some of the respondents identified weather condition and competitiveness in the market, logistic issues, communication, price fluctuations, and worker strikes as some of the challenges... Topic: Questionnaire The global...
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