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Your search returned over 400 essays for "aluminium"
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Alzheimer's Disease and Aluminium - Aluminium is present in the earth's crust in huge amount, mainly in the form of insoluble aluminium silicates. It is scarce in the human body which contain only 30-50 mg of that metal. This is due to the insolubility of aluminium, the presence of a barrier in the gastro-intestinal tract to soluble forms of aluminium, and the ability of the kidneys to excrete aluminium effectively in healthy people. Aluminium is present in food occurs in additives, tea which is rich in aluminium, and drinking water which is treated with aluminium to remove organic residues....   [tags: Alzheimer's Disease Essays]
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Aluminium - Aluminium The history of Aluminium use Aluminium is now one of the most widely used metals, but one of the hardest to refine due to it's reactivity with other elements. Even as late as the turn of the century, Aluminium was considered very valuable and in turn expensive, even more expensive than gold. In some cultures, when a function was held (for example, a party) by wealthy people, only the most honored guests would be given Aluminium cutlery, the others had to make do with gold or silver cutlery....   [tags: essays research papers] 487 words
(1.4 pages)
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Experiment to Find the Specific Heat Capacity of an Aluminium Block - Experiment to Find the Specific Heat Capacity of an Aluminium Block DATA COLLECTION: Mass(m) (kg) (5dp) Current(I) (A) (2dp) Voltage (V) (2dp) Time(t) (s) (0dp) Initial temp(T1) (ºC) (2sf) Final temp(T2) (ºC) (2sf) +/-( 5*10^ -4) % +/- (1*10^ -1) % +/- (4*10^ -2) % +/- (5*10^-1)s +/- 0.5 ºC +/- (5*10^ -1) ºC 0.99577 3.70 12.07 0 16.0 16.0 0.99577 3.70 12.08 60 16.0 18.0 0.99577 3.68 12.10 120 16.0 20.0 0.99577 3.66 12.11 180 16.0 22.0 0.99577 3.68 12.10 240 16.0 25.0 0.99577 3.64 12.08 300 16.0 27....   [tags: Papers] 481 words
(1.4 pages)
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An Analysis of the Properties of Aluminum - An Analysis of the Properties of Aluminum Physically, chemically and mechanically aluminium is a metal like steel, brass, copper, zinc, lead or titanium. It can be melted, cast, formed and machined much like these metals and it conducts electric current. In fact often the same equipment and fabrication methods are used as for steel. Light Weight Aluminium is a very light metal with a specific weight of 2.7 g/cm3, about a third that of steel. For example, the use of aluminium in vehicles reduces dead-weight and energy consumption while increasing load capacity....   [tags: Papers] 1111 words
(3.2 pages)
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Hulamin Limited Supply Chain Management - ... The table also show time wasted in production (Gap time) due to delays (see table 1 in Appendix A for typical delays). The value of a process is defined by the customer, if the customer is not willing to pay for the activity being done in the process step, or if the activity does not transform the product, or if the activity is redundant due to a defect, it is considered a non-value add step. For Plate plant to maximize production time, they need to identify waste and eliminate it. Waste is defined as anything other than the minimum amount of equipment, materials, parts, space or time which is absolutely essential to add value to the product....   [tags: Hulamin, aluminum, rolled products]
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Overview of Aluminum - ... It is made by the carbothermal reduction of aluminum oxide or by direct nitridation of aluminum. It is a white to pale-yellow powder.Aluminum hexaiodide has a formula of [AlI3]2. The structure is .The anhydrous form is found in nature as the mineral berlinite. It is a white solid. Its density is 3980 kg m-3. Aluminum bromide formula is [AlBr3]2. The structure is . It is a chemical compound. Aluminum reacts with bromide. It is crystalline solid white or a pale yellow color. Aluminum hydride is an inorganic compound with the formula AlH3.The structure is ....   [tags: electron, mineral alum]
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886 words
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Aluminum Nitride on Titanium - Piezoelectric materials are widely used for microscale sensors and actuators but can pose material compatibility challenges. This paper reports a post-CMOS compatible fabrication process for piezoelectric sensors and actuators on silicon using only standard CMOS metals. The piezoelectric properties of aluminum nitride (AlN) deposited on titanium (Ti) by reactive sputtering are characterized and microcantilever actuators are demonstrated. The film texture of the polycrystalline Ti and AlN films is improved by removing the native oxide from the silicon substrate in-situ and sequentially depositing the films under vacuum to provide a uniform growth surface....   [tags: Research Analysis] 800 words
(2.3 pages)
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Aluminum Recycling - Introduction: Aluminum is an element in the boron group with a symbol of Al, and an atomic number of 13. Aluminum is a very soft metal when pure but becomes strong and hard when alloyed, a malleable metal with a silvery gray color. Aluminum is a very reactive element so it is found in nature combined with other elements. Aluminum resists corrosion by the formation of a self-protecting oxide coating. Aluminum is the third most abundant element in the Earth’s crust, following oxygen and silicon....   [tags: Research Paper]
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2032 words
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Aluminum - Aluminum Aluminum is one of a number of soft metals that scientists call "poor" metals. It can be shaped and twisted into any form. It can be rolled into thick plates for armored tanks or into thin foil for chewing gum wrappers. It may be drawn into a wire or made into cans. Aluminum is a generally popular metal because it does not rust and it resists wear from weather and chemicals. (Bowman, 391) Aluminum is an element. Its atomic number is thirteen and its atomic weight is usually twenty-seven....   [tags: Papers] 1590 words
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Aluminum - Aluminum, symbol Al, the most abundant metallic element in the earth's crust. The atomic number of aluminum is 13; the element is in group 13 (IIIa) of the periodic table. Hans Christian Orstead, Danish chemist, first isolated aluminum in 1825, using a chemical process involving potassium amalgam. Between 1827 and 1845, Friedrich Wöhler, a German chemist, improved Oersted's process by using metallic potassium. He was the first to measure the specific gravity of aluminum and show its lightness. In 1854 Henri Sainte-Claire Deville, in France, obtained the metal by reducing aluminum chloride with sodium....   [tags: essays research papers] 1227 words
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Aluminum - Aluminum Aluminum is the second most abundant element in the Earth’s crust. It has a concentration of about 8.2 percent (Craig et al 264). Aluminum “is malleable, ductile, and easily machined and cast; and has excellent corrosion resistance and durability” (http://minerals.usgs.gov/). It is evident in everyday life. Aluminum is a very useful abundant metal. A large fraction of the mineral products we seek are metals, such as aluminum (Halleck, 1/20). The major uses of aluminum are transportation, packaging and containers, and building products....   [tags: Research Essays]
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Aluminum - Aluminum Hello buddy. How is the weather in Paris. It is extremely cold in New York and there is snow all over the place. The reason I am writing is to give you the information you wanted on aluminum. I have everything you would possibly want to know about everything from mining to recycling, but I will begin with a little background on the element first. Aluminum is the third most abundant element in the Earth's crust and was probably formed during the birth of our solar system through collisions of hydrogen atoms under intense heat and pressure....   [tags: Elements Natural Resources Science Essays]
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1349 words
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Refining Differences Between Copper, aluminum, and Steel - ... Aluminum Aluminums refinery process starts with extracting alumina from bauxite ore by using the Bayer process. The Bayer refining method involves four steps - digestion, clarification (settling), precipitation and calcination. To turn bauxite ore into alumina, the ore is first crushed and mixed with caustic soda, this is called slurry. The slurry is then pumped into high-pressure containers which are heated to 300 °Fahrenheit and more caustic soda is added along with lime. This is intended to dissolve away aluminum....   [tags: minerals, smelting, ore benefaction ]
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1167 words
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Bauxite/Aluminum and the Environment - Bauxite/Aluminum and the Environment Aluminum is the third most common element in the earth's crust, with reserves guaranteed to last hundreds of years, and, in its ore, bauxite, one of the most economically significant minerals in the world. It is, perhaps, more easily recycled than any other mineral substance used by man, but mining operations still continue and are enormously valuable. Aluminum companies have been at the forefront of environmental progress and effort in the minerals industry....   [tags: Essays Papers] 955 words
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Aluminum Bats - ESPN the magazine starts the story July 25, 2003 Brandon Patch was on his way to play his final American Legion Baseball game against Montana's two time state champs Helena. Brandon was a husky first baseman and a pitcher not much for the specifics. He just loved to play the game of baseball. He was so excited to play against their rival the best team in the state. He said, "He was not going to lose." The score tied 3 to 3 in the bottom of the fifth inning with one out and a 1-1count, Quinn LeSage was at bat....   [tags: Sports] 1177 words
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Aluminum Bats vs. Wooden Bats - Aluminum Bats vs. Wooden Bats      Is baseball America’s pastime. For the major leaguers maybe, but for college athletes it seems more like a new age video game. The introduction of high dollared aluminum bats produce football like scores, higher statistics, and a percentage of danger to each and every player on the field. The NCAA has changed the regulations of the bats so far and should look further into to making another change to wooden bats.      High tech aluminum baseball bats aren’t quite as new to the game as many people may think....   [tags: Baseball Bats compare Contrast Essays]
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Hydrophobic property of Carbon Nanotubes - ... As for other liquids that are non-polar, research has yet to be conducted to determine if corrosion issues could possibly occur. Since most of the fluids that come in everyday contact with airplanes such as water and jet fuel are non-polar, corrosion from non-polar fluids will not be an issue. So while it will cost a company that has a plane fleet with predominantly carbon fiber airplanes a lot of money due to maintenance fees, in the future, it will cost significantly less amount of money in maintenance for a bucky paper plane....   [tags: corrosion, aluminum, carbon fiber]
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Toxic Effects of Aluminum and Their Probable Association with Dialysis Encephalopathy - Toxic Effects of Aluminum and Their Probable Association with Dialysis Encephalopathy Reports on the neurotoxic properties of Aluminum (Al++), as well as those of many other heavy metals, date as far back as the end of the nineteenth century. In 1965, Al was found to induce the formation of neurofibrillary tangles (NFT) in animal brains. These NFT’s were similar to those found in brains of patients suffering from Alzheimer’s Disease (AD). Vast research thus, was targeted at defining the possible etiologic role of Al in AD....   [tags: Chemistry Chemical Essays]
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Coagulation and Flocculation in Water and Wastewater Treatment - The treatment of surface wastewater is aimed at bringing contaminated water back to its previous state for domestic use or otherwise. Some of the sources of wastewater include industrial effluents from manufactures, agricultural effluents, agro-industrial as well as domestic wastewater from sinks, bathtubs, toilets, and so on. Particles in the water from the various sources include bacteria, organic matters, and sand which cause the water to be turbid or discoloured in appearance and have an unpleasant odour....   [tags: wastewater, flocculation, alkalinity, flocs]
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Which two metals combined together give the higher voltage when reacting with acid - Which two metals combined together give the higher voltage when reacting with acid Introduction In this investigation we will find out which two metals combined together give the higher voltage when reacting with acid. The metals used will be: · Aluminium · Zinc · Iron · Tin · Lead · Nickel · Copper To make a prediction on what metals will be the ones that give the highest voltage when combined together you need to find out if the position in which the metals are at in the reactivity series would make a difference, and if it does, how....   [tags: GCSE Chemistry Coursework Investigation] 1196 words
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Investigating Which Metal Combination Gives Out the Most Voltage in a Solution - Investigating Which Metal Combination Gives Out the Most Voltage in a Solution Background Metals are an order of chemical elements in the periodic table. They are arranged in atomic number. All of them are solid (apart from mercury), good thermal and electrical conductors and are shiny when polished. Metals and non - metals are separated in the table by a diagonal line. -------------------------------------------------------------------- The reactivity series is a table to show which metals are most reactive to the least reactive....   [tags: Papers] 919 words
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Expansion and Contraction of Materials - Expansion and Contraction of Materials When most materials are heated they expand and this increase their volume. One example of expansion is the fitting of the starter ring gear to the flywheel. The gear is heated until it expands sufficiently to pass over the rim of the flywheel, and when it is cool the gear tries to return to its original size, this gripping the flywheel with considerable force. All metals do not expand equally when heated through the same range of temperature, e.g. aluminium alloy expands more than cast iron; copper and brass expand more than mild steel....   [tags: Papers] 902 words
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Alloy Wheels - Alloys They are lightweight, better conductors of heat and fit more snugly than steel variants. But most importantly they improve fuel efficiency...No wonder aluminium alloy wheels are fast becoming the preferred accessory of car consumers IT'S now considered a wonder material for autoville. Aluminium, which is increasingly replacing steel in car factories across the world (including some of the more premium names in the business like BMW and Mercedes Benz), is also the preferred material for wheels, both automotive and otherwise....   [tags: Case Study, solution] 939 words
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The A380, The Worlds’ First Superjumbo Jet - In 1988 engineers at the Airbus headquarters in Toulouse started work on a highly ambitious project, the possibility of a commercial UHCA (ultra-high-capacity aircraft). By 1993 Boeing and Deutsche Aerospace, a member of the Airbus consortium, surprisingly declared they were joining forces on a VLCT (very large commercial transport) feasibility study, with the aim to create a product in a shared partnership that would lead in the limited market [7]. Nevertheless two years later this study was abandoned due to viability from increasing development costs....   [tags: Airbus, Boeing, Lufthansa]
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Rocks and the Earth - Rocks and the Earth There are 3 main types of rock . These are sedimentary , metamorphic and igneous . Igneous rocks are formed by molten lava escaping from the mantle and cooling down to form solid , crystalline rock. The faster the new rock cools the smaller the crystals in the rock are. Eg Granite Sedimentary rocks are made when small chippings of rock accumulate on the seabed and are crushed together over thousands of years. These chippings are worn from rocks by wind, rain and ice , this is called erosion or weathering....   [tags: Papers] 728 words
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Heat Energy Investigation - Heat Energy Investigation In this experiment we will as accurately as possible measure the voltage, current, time, start temperature, final temperature and the mass of 7 different substances. We will measure the voltage to make the experiment more accurate, we will do this by making sure that every time we do an experiment we will keep the volts to 12v and nothing else, as this could affect the overall result. It is also needed as part of an equation that will be done later on....   [tags: Papers] 1170 words
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Vapour-Compression Refrigeration System - ... Storage companies such as Armour, Swift, Morris, Wilson, and Cudahy used refrigeration, in, branch houses, and other cold storage facilities. Being able to keep perishable foods chilled was a tremendous help and allowed their distribution on a larger scale. By 1884 several writers and journalists had stated, that household refrigerators were one of the greatest inventions. Over time engineering techniques perfected it, made it reliable, with a price tag low enough to make it a widely owned product....   [tags: ice, freezer, hydrogen, low temperatures]
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Various Kinds of Heat Exchangers Analysis - ... In a gas turbine engine, for instance, air is compressed before being mixed with fuel. The mixture of compressed air and fuel is then burned to generate the energy needed to drive the turbine (Shurcliff 76). A recuperator then transfers some percentage of the waste heat from the exhaust to the already compressed air, preheating it just prior to the fuel burner stage. It consists of a series of parallel aluminium or stainless steel plates on which alternating pairs are enclosed on both sides to create identical sets of ducts arranged orthogonally to enclose the extract and supply air streams....   [tags: heat pipes, hvac systems, energy recovery]
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Technical Report The Construction of Alloy Wheels - Technical Report The Construction of Alloy Wheels Introduction Aluminium alloy wheels are now used in all branches of Motor Racing, ranging from Touring cars and Rally cars to Formula One cars. The Alloy wheels offer far superior mechanical properties than the conventional steel wheels formerly used. These benefits include reduced un-sprung weight, i.e. not held by the suspension, providing more precise steering input and improved responsiveness. Alloy wheels also improve acceleration and braking due to the reduction of weight....   [tags: Design and Technology]
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The Content of Two Antacids - The purpose of this experiment is to investigate and compare the basic content of two antacids and also compare the prices and thus decide which antacid is more cost effective. This experiment is not hugely significant to the wider scientific community however it can help an uninformed consumer purchase a more cost effective antacid and understand how antacids work. The method used in this experiment is called a back titration. This involves adding HCl to an antacid tablet until an excess of HCl is reached and then titrating that solution against a 0.1mol NaOH solution....   [tags: Antacids, science experiments, ] 2178 words
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The Problem of Acid Rain - The Problem of Acid Rain WHAT CAUSES ACID RAIN When power stations, factories, houses and cars release pollution into the air it has chemicals in it called sulphur dioxide and nitrogen oxides. SULPHUR DIOXIDE: Man-made sulphur dioxide comes mainly from burning fossils fuels in power stations. It then mixes with water in the atmosphere to make sulphuric acid, which will later fall as acid rain. NITROGEN OXIDES: Nitrogen oxides are also man-made and mainly come from car exhausts....   [tags: Papers] 859 words
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Monopolies that make super normal profits aren’t in the public - Monopolies that make super normal profits aren’t in the public interest because they could charge a lower price than they do. Introduction: Monopoly is an emotive word, and the immediate reaction is that it should be replaced with competition. In this investigation we are going to look at what is a monopoly, what are barriers to entry and what types of barriers there are, what are normal and supernormal profits and to they bear any benefits to the public. What is a monopoly. Monopoly is a market situation in which there is a single seller of a product and there are no close substitutes of this product in the market....   [tags: Business and Management Studies] 1153 words
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The Pros and Cons of Vertical Integration - It leads to reduction of transportation costs as the common ownership results in closer geographic proximity. The transaction costs can be controlled if a firm acquires the other firms in the vertical chain, then one division of the same company will transfer goods to other divisions. So, transaction costs in form of transport, cost of negotiation, cost of control etc. will be eliminated. The overall average cost of the firm will decrease because if the divisions are under same management control then there will be in house supply and departmental heads will determine the transfer price....   [tags: essays research papers] 1124 words
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Turning a Mild Steel Bar - TASK: Turning a Mild Steel Bar.We were each given a mild steel bar to work into the shape shown in the drawing found on the following pages, TURNING TASK: Turning a Mild Steel Bar. We were each given a mild steel bar to work into the shape shown in the drawing found on the following pages, to do this we used the Turning Lathe in the workshop, but before we could start some measurements had to be taken. This meant using a micrometer to determine the diameter of the bar to begin with. A micrometer allows a measurement of the size of a body....   [tags: Design and Technology] 2186 words
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Corporate Strategy - External Environment The various factors and systems that surround a business, and do not constitute the operation of the business, are regarded as components of the external environment for the business. These systems and factors have a very great potential of influencing and affecting the business activities (The External Environment). The constituents of the external environment include: the business competitors, the prevailing economic status of the country the business is located in, the existing surrounding social system, the dynamics of political or legal components in the country, and the existing monetary system of the country....   [tags: Business Analysis ]
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Electrolysis - Electrolysis Electrolysis is a chemical process by which electrical currents can be passed through solutions. Pure water cannot conduct electricity, but if a salt such as Sodium Chloride is dissolved in it, the solutions will start conducting if two electrodes are placed in it with a battery that provides the initial current. When we close the switch, copper ions on the anode will start to move through the solution to the cathode. The copper atoms have already given up two electrons to become ions and their electrons are free to move in the wires....   [tags: Papers] 491 words
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Assessment of Manipulations in Commodities Futures Markets - ... Both aberrant inter and intra commodity spreads might be generated and thus, create extra opportunities for speculators as well as arbitragers. But the inter-commodity spread at the same time, might render a hedger bearing losses from unfavourable moves of product basis, particularly when hedging is done with relevant instead of exact underlying assets. The party that deserves the most pity, however, might be speculators running out of financial resources caught by manipulators. (Hull, 2003) However, this is rarely the case, at least in corners, as the received view equals short sales to weakening the market....   [tags: market power, electricity, energy markets]
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Design Consideration of a Noise Barrier - ... In fact,the position and height of barrier have been fixed in EIA study. Shape is the major consideration of designing the barrier. Choice of Material Roadside noise barriers can classify into four categories: I. reflective type: transparent and non-transparent II. Absorption type: sound absorbent materials and possible finishes of absorptive panels III. Earth landscaped mound and retaining structures IV. mixed type:combination of the above types Steel, Aluminium, Concrete,landscaped earth berm are generally used to manufacture noise barrier....   [tags: acoustical design, noise mitigation]
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Designer Charles Eames' Design Icon: The Eames Chair - The Eames chair designed by Charles Eames in 1955. Charles Eames was born in 1907 and dies in 1978, the Eames chair was named after the designer itself it took 80 years for prototype. Eames was best known as the designer responsible for many classic iconic designs of the 20th century, Eames was born in St Louis, Missouri and studied architecture at Washington University, he got married in 1941 and moved to California to set up a ground breaking design studio. The chair was design for exterior use however it became very popular as an office chair....   [tags: home decor, Designer, Charles Eames, Eames Chair, ] 465 words
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Radioactivity Experiments - Radioactivity Experiments Aim: To determine the penetrating power and the range in air of the three radioactive emissions alpha, beta and gamma. Apparatus: * gm tube, * clamp stand, * the counter thing, * ruler, * set-square Method of penetrating power of Alpha particles, Beta particles & Gamma Rays: The equipment was set up as shown below to measure the penetrating power of each radioactive source. Geiger-Muller Tube Again the measurements were taken without the absorber to measure background radiation....   [tags: Papers] 948 words
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International Joint Ventures (IJVs) - INTRODUCTION: In today’s global world, multinational corporations (MNCs) need to find new markets to stay competitive. A way in which they can do this is through IJVs. Hyder and Ghauri (2000) estimate the growth of IJVs to be 25% annually. As defined by Geringer (1988), a joint venture (JV) is when two or more distinct companies come together and form a new entity. Geringer and Hebert (1991) extend this definition to include IJVs and stated that if the headquarters of one of the partners is outside the country where the JV is set-up or if it has operations in multiple countries, it is an IJV....   [tags: Strategic Alliances]
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Herbal Medicine: Vino Ltd - Vrino Ltd was founded in 1991, with its main business activities being the cultivation, processing, packaging and distribution of aromatic plants, herbs and spices. Throughout these years, the company has tremendously expanded, not only within the Greek borders, but also across the whole world (exports in the USA, Australia, China, Germany, Canada are specific examples). The company has long been an authorized supplier of Delhaize Group as well as Spar Group and has acquired all the required certifications of standardized procedures and quality (ISO 9001:2008 and 22000:2005 stand as the most important)....   [tags: cultivation, aromatic plants]
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I Love Electronics - I Love Electronics I have been interested in electronics since I was a child. At the age 5 I made a plug of aluminium foil and I put it in the electrical wall socket. To my surprise I got an electric shock, the wall and socket consequently became blackened, we had no electricity for the rest of the day (I wasn't at all very popular). Following on from this incident, I was often found sitting by the side of the blackened socket looking at it and thinking. I never did try to make another aluminium foil plug....   [tags: College Admissions Essays] 359 words
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The Uses and Significance of Group Two Compounds - The Uses and Significance of Group Two Compounds The group two elements consist of Beryllium, Magnesium, Calcium, Strontium, Barium and Radium. These are known as the ‘Group Two elements’ because of their unique electron division. Each one of these elements, consists of two outer shell electrons. Because of the lack of outer electrons, these elements are highly reactive. Group two electrons have a positive Two charge or +ve. The Group 2 elements are all metals with a shiny, silvery-white colour....   [tags: Papers] 736 words
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The Age of Discovery of Elements - The Age of Discovery of Elements "The nineteenth century was the golden age for the discovery of elements. Scientists began to look for patterns of behaviour between elements."*1 Johann Döbereiner, a German chemist, was the first to attempt to categorise the elements. He used their atomic weights, which we now know as atomic masses. In 1863, John Newlands, produced something that he called the 'Law of Octaves'....   [tags: Papers] 879 words
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Frank J. Horgan Filtration Plant - Frank J. Horgan Filtration Plant Introduction The Frank J. Horgan Filtration Plant is located Southeast of Toronto on the shores of Lake Ontario (See map). Its purpose is to provide safe drinking water to our taps by filtering the water. The water is gathered from Lake Ontario. This plant has a production capacity of 455 million litres per day to supply the residents of Toronto with drinking water. Its average production of drinking water is 355 million litres per day. It is also the newest filtration plant in Toronto....   [tags: essays research papers] 1143 words
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Exploring the Role of Chemists - Exploring the Role of Chemists It was Lavoisier who divided the few elements known in the 1700's into four classes, and then John Dalton made atoms even more convincing, suggesting that the mass of an atom was it's most important property. In the nineteenth century Johann Döbereiner was the first to attempt to classify elements using their relative atomic mass. He also identified a number of ‘triads’ in the list of elements then known. Each triad was a set of 3 elements that have similar properties (e.g....   [tags: Papers] 647 words
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Light and Photosynthesis - ... Geraniums are dicotyledonous plants that are found in the hot and dry regions of South Africa. They belong to the Geraniaceae family and the Plantae kingdom. The long leaves are round in shape. The flowers have five petals and are coloured white, pink, purple or blue. Geraniums will grow in any soil as long as it is not waterlogged. Reproduction is by semiripe cuttings in summer, by seed, or by division in autumn or spring. Geraniums are eaten by the larvae of some species including brown-tail and mouse moth....   [tags: plant, sun, greranium]
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Bases and Alkalis - Bases and Alkalis A base is a compound that reacts with and neutralises an acid. The reaction forms a salt plus water. Alkalis are a type of base - ones that dissolve in water. Alkalis are compounds that react and neutralise acids. Like bases, they form a salt and water in the reaction. Alkalis turn red litmus indicator paper blue and they cause Universal Indicator paper to turn blue or purple. Alkaline solutions have a pH value greater than 7. Alkaline solutions feel soapy and are corrosive....   [tags: Papers] 601 words
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Exploring the Popularity of Non Stick Frying Pans - Non-stick frying pans are one of the most common kitchen utensils today. Frying pan is mostly used for cooking. The non stick frying pans are made of two components, the metal body and the Non Stick layer. Actually the surface of the non stick frying pan is coated with a layer of oil or fat when the pan is in use. The layer of oil has four functions: it lubricates the surface; increases contact between the food and the pan; acts as a thermal mass to reduce the cooking time; and can be increases flavor and color....   [tags: environment, nutrition, health, PTFE]
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Business Profile: R.K. Trading Co. - We are one of the leading manufacturers and suppliers of a wide range of Electrical Contacts for Starter and O.C.B. Carbon Brush, Brush Holder and Slip Ring Unit.// change sequencing, same as about us// Our range is acknowledged for optimum quality, efficiency and durability. We are counted as a prominent manufacturer and supplier of a comprehensive range of Electrical Contacts for Starters, O.C.B. Contacts, Carbon Brushes, Brush Holders, Slip Ring Unit and Flexible Cable. Moreover, we are also a stockist of Relay, Timers, PVC Cables, Copper Wire and Aluminum Wire....   [tags: Business Profile] 2279 words
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Critical Analysis of Michael Landy's Scrapheap Services - Michael Landy's "Scrapheap Services" is a 3D sculpture on display in the Tate Modern Gallery. It shows 3 men in boiler suits, their heads bent, as they are intent on their work in the disposing of `people who no longer play a useful role in society'. The room is scattered with little people cut out of discarded material such as aluminium cans, cigarette boxes and fast food wrappers. Uniformed mannequins are in the process of sweeping up the figures, gathering them into bins, and consigning them to a shredding machine called "The Vulture", as vultures clear aware rotten carcasses the machine will do similar....   [tags: Artists] 636 words
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Volume's Effect on a Copper Sulphate Solution - Volume's Effect on a Copper Sulphate Solution We are trying to find out if the current though a copper sulphate solutions volume is increased. To find this information out I shall perform an experiment using the following equipment; · 1 power pack · 1 beaker · 2 carbon rods for anode and cathode · 1 ammeter · 1 measuring cylinder · 2 crocodile clip wirers I shall also be using 60cm3 volume of copper sulphate in my preliminary results to decide upon the concentration of copper sulphate and the voltage I shall use....   [tags: Papers] 922 words
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Investigating the Thermal Decomposition Of Metal Carbonates - Investigating the Thermal Decomposition Of Metal Carbonates Aim: To investigate a range of metal carbonates and see if they thermally decompose. Thermal Decomposition INVESTIGATION [IMAGE] ------- Written By Tauqir Sharif ------------------------ Research: When a metal is thermally decomposed the bond between the metal and its carbonate (carbon and oxygen) is removed and the carbonate is released as carbon dioxide. Metal Carbonate = Metal Oxide + Carbon Dioxide Malachite is an ore of copper....   [tags: Papers] 2469 words
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Resources and Development in an economy - Resources and Development in an economy Resources and Development a) Resources influence the structure and progress of an economy. If something is considered a resource it is potentially of economic benefit. However there are three differing types of resources, and it is the relative abundance of all these that dictates the economic structure. It is debatable whether the presence of one resource, e.g. Coal (a natural resource), leads in itself to economic sustainability and strength. There are human, capital and natural resources....   [tags: Economics] 1849 words
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Investigating the Heat Capacity of Metals - Investigating the Heat Capacity of Metals Aim: My aim is to measure the specific heat capacity of 4 metals and find out if they all have the same specific heat capacity or different. Prediction: The specific heat capacity is the amount of heat energy needed to raise 1kg by 1 C and is measured in joules. My prediction is that the metal with the least massive atoms will heat up more quickly because they require less heat energy to make the molecules move around and heat up....   [tags: Papers] 982 words
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Viticulture: Cultivation of Grapes - ... This process is undesirable in wine production, so fermentation is usually carried out under a blanket of CO2 to exclude oxygen and hence maximise alcohol production. Bio-chemical process in Ethanol production. The continuous process of oxidative degradation and fermentation of sugars under oxidative conditions in the grapes used to produce Ethanol which gives the aroma and sour flavour in the wine production. Chemical method in production of Ethanol: [15] [15p2] It is difficult to obtain pure 100% Ethanol by distillation process....   [tags: wine industry, fermentation, alcohol]
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The Success of Directing Roots and Water: Blessing - The Success of Directing Roots and Water: Blessing The film begins with a view of the cracked, red, hard earth. The area is barren, still and quiet. Then a clay pot falls from above, cracking as it meets the ground. This imagery and the sudden harsh sound of the breaking pot help reflect the pain and harsh reality of their situation in the first two lines of the poem, “The skin cracks like a pod. There never is enough water.” The word “cracks” in the poem is onomatopoeia, this sound is then carried through into the film to put forward the same effect which is done successfully....   [tags: Free Essays] 409 words
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Japan - Breif History from WWII - Japan - Breif History from WWII INTRODUTION: Without a good history, no nation can ever be considered developed. It is the history that makes or breaks a country. Japans history is very unique. During and after WWII their country was in ruins - literally. All their previous allies had deserted them, they were alone and destroyed by the Americans, an unlikely ally. I will focus on the impacts that America had on Japan, and then how Japan got themselves to the title of "The Second Most Developed Country"....   [tags: Japanese Japan History] 461 words
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Enthalpy of Combustion of Alcohols - Enthalpy of Combustion of Alcohols Procedure 1. Put 150³ of cold water in an aluminium calorimeter and record its temperature. 2. Support the calorimeter over a spirit burner containing the ethanol you are going to burn. Arrange a suitable draft exclusion system to reduce heat loss. 3. Weigh the burner and Alcohol. 4. Replace the burner under the calorimeter and light the wick. 5. Stir the water with a thermometer. 6. When the water temperature has risen by between 15 and 20ºC extinguish the burner but continue to stir it until the temperature stops rising....   [tags: Papers] 1428 words
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Scale of Production of Signs - Scale of Production of Signs This sign is an example of a mass produced, cheap manufacturing cost sign. The reason for this sign being cheap to manufacture is that the sign is made out of steel or aluminium and also may have either a reflective vinyl for those used at night. This sign may also have a high-density PVC backing to it as it is a lightweight plastic that can provide a number of colours and is relatively cheap. This sign would need to be mass produced as this sign is very common and not very large....   [tags: Papers] 385 words
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Heating and Cooling Investigation - Heating and Cooling Investigation Aim- to find out if different sized cans affect the temperature of 140ml of boiled water, when they are left alone to cool. In this experiment, I will be using two different sized cans (one 12cm tall holding 330ml and another 9cm tall holding 150ml). I will be seeing if each can keeps the boiled water warm for a period of time and testing to find out which one is the best. Fair Test To make this a fair test, I will have to do many things. Firstly, I will use the same amount of water (140ml) at the same temperature, as it will have to start at the same temperature to keep it fair and also have the same amount of water to test on....   [tags: Papers] 541 words
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Acid Rain - INTRODUCTION The term acid rain refers to the process of deposition or precipitation of hydrogen ions with a pH value below 5.0, in the atmosphere. These acidic substances are produced by the pollutants on the earth that are airborne. These acidic precipitates will pour down as water droplets along with normal rain water whose pH lie between 5.0 and 5.6 creating hazardous effects on the living organisms of earth. HISTORY The cause of acid rain is mainly due to industrial pollutants. Acid rain was first reported during the Industrial Revolution in England in 1852.A Scottish chemist by name Robert Angus Smith discovered the same....   [tags: Environmental Science]
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Waste Management - 2.0 Literature Review People are consume a lot of product and generate waste product much faster than the natural degradation process and replecement of this materials. So far, Malaysians spend much more money on waste management. Local authorities spend up to 60 per cent of their annual budget to manage solid waste generated in the country, which costs Malaysia between RM110 and RM130 to collect and dispose one tonne of garbage. That sums up to RM1.98 million to RM2.34 million per day or RM854 million per year at the current generation of 18,000 tonnes of solid wastes per day (Ali, Eeda et al., 2012)....   [tags: recycling, domestic waste, solid waste]
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Car And Bicycle Brakes - Caliper Brakes Effectiveness: good mechanical advantage as it allows the operator to brake with little effort on the hydraulic lever, which needs to be squeezed. Material: Calipers are fixed mount, opposed piston calipers cast from aluminium alloy. Calipers are the hydraulic clamp portion of the disc braking system. Manufactured from either ferrous or non-ferrous materials and bolted firmly to the suspension upright(or knuckle) the caliper holds the pads in place and, through the action hydraulic pistons actuated by the master cylinder, force them against the rotating surface of the disc when pressure is applied to the brake pedal....   [tags: essays research papers] 377 words
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Uses of Nuclear Radiation - Uses of nuclear radiation Smoke Detectors Smoke alarms contain a weak source made of Americium-241.Alpha particles are emitted from here, which ionise the air, so that the air conducts electricity and a small current flows. If smoke enters the alarm, this absorbs the particles, the current reduces, and the alarm sounds. Thickness Control In paper mills, the thickness of the paper can be controlled by measuring how much beta radiation passes through the paper to a Geiger counter. The counter controls the pressure of the rollers to give the correct thickness....   [tags: essays research papers] 456 words
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Analyse at Least Two Recently Proposed Solutions to the Problem of E-Waste in Order to Determine Which is the Most Effective - The XXI century is generally defined as the era of modern Information Technology (IT). In recent decades there has been a big step forward to the advanced technology and innovations. Everyday electronic equipment becomes obsolete because of an enormous stream of new and upgraded ones. It is an unstoppable process termed as progress, when new gadgets evolve and develop, old electronic appliances become useless and out of date. However, as modern technology develops and extends the amount of obsolete and discarded electronic equipment also known as e-waste (e-scrap) increases....   [tags: Information Technology ]
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Effect of Environment Upon the Culture in Blessing and Night of the Scorpion - Does the environment have an effect upon culture in the poems “Blessing” by Imtiaz Dharker and “Night of the Scorpion” by Nissim Ezekiel. Consider the attitudes of the poets towards both the environment and the culture of the scenes they observe. India; one place; many cultures. Two poems describing two cultures with the effect affected by the environment. I will be investigating the poems “Blessing” by Imtiaz Dharker and “Night of the Scorpion” by Nissim Ezekiel and how the environment of the country affects the writing of the poems....   [tags: Poetry Analysis] 2426 words
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Exploring the State of Akwa Ibom in Nigeria - HISTORY The collective yearnings and expectation of Akwa Ibom people for a State of their own had been long and persistent. Predating the independence of our country, the struggle for geo-political identity for the area and its people had suffered twist and turns along the pathway. But buoyed by the justness of their cause, the people persisted until their erstwhile remote dream became a reality when, on September 23, 1987, Akwa Ibom State came into being as Nigeria’s 21st State out of the former Cross River State....   [tags: research paper, africa, african history] 1654 words
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Ken Kirkpatrick: A Stalwart of New Zealand Food - Ken Kirkpatrick is a stalwart of the New Zealand food (particularly dairy) industry and has a long and exceptional record of service in scientific, technical, marketing and managerial roles. Ken was dux of Gore High School where he excelled in scientific, language and cultural subjects. He graduated from Canterbury University BE (Chem Eng) (Hons) in 1963 and, with the help of a NZ Dairy Research Institute (NZDRI) scholarship, completed his PhD in the electrochemistry of aluminium under the supervision of Prof Tom Hagyard....   [tags: Biography] 1096 words
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The Impact of Biodiesel on Automotive Catalyst Performance - Stringent diesel emissions regulations around the world have put much pressure on the shoulders of manufactures to reduce the level of emissions entering the atmosphere from diesel engines. Much of the initial attempt to achieve this by the manufactures was by the substitution of biodiesel in place of the conventional petroleum diesel. In order to create a balance between the vehicle performance and the imposed emissions regulations, many manufacturers prefer to blend petroleum diesel with biodiesel in a proportion which is deemed suitable to run on their engines....   [tags: Energy, Diesel] 1259 words
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A.G Barr Market Entry Plan For Brasil - A business expanding into foreign markets is becoming a common occurrence in the world. A.G.Barr’s has proven itself to be successful in its own market, from its figures it shows it is the largest soft drink supplier in Scotland. The company offers a unique twist into the soft drink industry and so is looking into a country which already bolsters a big soft drink consumer base. After already expanding into the Russian and Australian market the best option for the company appears to be Brazil. This is due to the large tourist influx which is expected and also the already large consumer base General Information about host country Brazil is the world’s fifth-largest country in terms of land m...   [tags: Population, Host Country, Brazil]
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Comparing Trinity College Library and The Hive - The focus of this report is to compare the structure of Trinity College Library and The Hive. The Hive Library, in Worcester, is a four-story building that is made of golden-colour copper aluminium alloy (exterior) and water proof concrete (interior). Feilden Clegg Bradley Studios designed the building, which costs around ‘£38m’(Ijeh, The modern reader, p2). The library was designed for the use of public as well as the use Worcester University student. On the other hand, Christopher Wren designed The Trinity College in 1676-1695 in Cambridge....   [tags: comparative, libraries]
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Blackberry Breeders have Implement Morphological Marker-assisted Selection - ... The leaves were wrapped in aluminium foil and then placed in liquid nitrogen for transportation to laboratory for RNA extraction. 3.5 g of leaves is been used for total RNA extraction using RNeasy Plant Mini Kit (Qiagen, Inc., Valencia, Calif). Successful RNA extraction from seven extraction were pooled together to increase the total yield. Afterwards, separation of mRNA from RNA is done using Poly(A) PuristTM Kit (Ambion, Austin, Tex.). mRNA was then been used for cDNA synthesis using reverse transcription and cDNA library was cloned in Gateway system (Invitrogen Corp., Carlsbad, Calif.) with pDONR222 vector and ElectronMAXTM DH10BTM T1 Phage Resistant Cells (Invitrogen Corp.) by follow...   [tags: EST sequence, blackberry cultivars, rna]
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Humans in Relation to their Environment - Introduction Throughout history, humans have used what was present in the environment to aid their survival. The discovery and use of metals have been a gradual but extremely influential one. Evolving with early humans from personal adornment to the development of more efficient tools and lastly to full integration in every aspect of our modern life. This paper will look at how humans related to their environment before the discovery of metals. It will further go on to describe what metals are and how we incorporate them into our lives, and how extraction and use affect the environment around them....   [tags: metals, Human Niche, adornment, evolution]
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Atlas - The Agile Anthropomorphic Robot - ... It is equipped with 28 interlocking hydraulic joints which give it much freedom to move its hands, arms, legs, feet and upper torso. Its hands come with special sensors for location and photography. The US government is currently considering the use of the ATLAS robot for specialized missions such as search and rescue, as it can enter places where humans would have trouble crossing and tirelessly search and report back. Methodologies employed in the system Atlas has four hydraulically-actuated limbs that based on earlier PETMAN humanoid robot....   [tags: rescue robot, specialized mission]
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Use and Description of Titanium Dioxide - ... b)Anatase The anatase form of TiO2 is composed of distorted TiO6 octahedrons where two oxygen atoms are closer to the titanium centre than the other four. The structures comprises eight faced tetragonal dipyramids with sharp elongated points. Each octahedron share four edges with others. As in the rutile structure, titanium has 6 oxygen nearest neighbours and oxygen has 3 titanium nearest neighbours. The unit cell of anatase is shown in Fig 2 below. Fig 2. The unit cell of Anatase. [5] Titanium atoms are represented by the grey atoms and oxygen atoms are represented by the red atoms....   [tags: elemnt, metal, alloy, chemtec plc]
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Using Windmills to Create Energy - Windmills have been around for hundreds of years, but it is only recently that they have been used purely to produce energy; in the past the energy was solely used in food production. Nowadays the energy is channelled off and used for electricity. I personally feel that wind farms are a great idea and that more should be built. Unfortunately, many people see them as pointless and grotesque, but others, like me, see the true greatness of these structures. It is also believed that the farms help reduce global warming, as the windmills do not burn any fuel or emit any gases....   [tags: windmills, energy, UK, ] 910 words
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The Design of Taipei 101 - Stiffness and comfort (steel outrigger trusses) The 101 story building, 500 meters high Taipei 101 is located in Taipei, Taiwan. Taipei 101 is the pride and identity of the people of Taiwan. The building represents “concept of striving for beyond perfection” (Taipei 101 anon 2005) as it outsmarts nature with its technological features. 101 building achieved a remarkable world record for the highest building in 2004 with 101 floors hence the name Taipei 101. Designing and building the 101 building was very challenging and rewarding, as it is located in one of the most hostile places in the world....   [tags: Structural Design]
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The Assassin: A Short Story - How do we handle fictional narratves. John Murdock woke up after a long night of drinking he got up and went to the kitchen and put the kettle on. Then he walked out to his boat house there was his pride and joy a 8m, aluminium hull, dark red quintrex with twin Yamaha 200hp out boards. John walked back to the house, and poured himself a strong cup of coffee and sat down at his table as he did he caught sight of a black BMW parked about three houses down the street, he took a mouth full of his coffee and caught a quick glimpse of the car he could see two suits sitting in the front of the BMW, he drank the rest of his coffee and went to his room to get changed....   [tags: Fictional Narrative] 809 words
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