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  • Asbestos Content Of Suspect Materials
    2,417 words
    Asbestos is the only natural inorganic fibrous material that has attained commercial importance, and particularly in the last twenty years. The current period after World War II has witnessed a vigorous development in all technological areas where asbestos plays a part (Oesper 1). The word asbestos is derived from a Greek adjective meaning inextinguishable. The "miracle mineral" as it was referred to by the Greeks, was admired for its soft and plain properties, as well as its ability to withstan...
  • Articles In Journals On Material Science
    1,095 words
    One of the lesser known, but essentially important, fields in the natural sciences is material science or materials science. Material science is the study of the characteristics and uses of the various substances that are employed in science and technology. Unlike many other academic fields, material science correlates to many other aspects of other fields as well. Without the tools to build the machines or the paper on which we write, no other academic field would exist. There has been much stu...
  • Diatomite Mines
    1,374 words
    DIATOMITE Diatomite is a sedimentary rock, that is white and yellowish in color. It is composed of fossilized skeletons of one-celled algae-like plants called diatoms. It is accumulated in marine areas. The Honeycomb silvia structure is useful because of its high absorptive capacity and surface area. It is also very chemically stable. Its principal use is filtration. This substance of diatomite is extracted from many countries around the world. Out of 30 world countries the largest suppliers are...
  • Efficient Use Of The Cement And Water
    1,356 words
    Arizona Concrete John McCollamGeology 101, Section 12262 Randy Porch 20 November 1996 According to the Mine Faculty at the University of Arizona, cement is manufactured primarily from suitable limestone and shale rocks. Arizona had two dry-process cement plants in 1969, namely the Arizona Portland Cement Company plant in Pima County, near Tucson, and the American Cement Corporation plant atClarkdale, in Yavapai County (52-53). The use of cementing materials goes back to the ancient Egyptians and...
  • Raw Materials For Gelatin In Food
    1,038 words
    UK Gelatin Bovine Spongiform Encephalopathy, or BSE, is a degenerative disease affecting the central nervous system of cattle causing the brain to appear as a sponge. The cattle then begin acting abnormally and eventually have to be killed. BSE can be transmitted to humans if they consume raw meat from an infected cow or if one consumes the eyeballs, spinal tissue, or the brain. This disease is known as Creutzfeldt-Jakob disease. Another disease similar to BSE, which is found in sheep, is Scrapi...
  • Temperature The Viscosity Of The Material
    1,226 words
    Processes for cleaner and more efficient energy generation from feed stocks such as coals, l ignites, pets, and waste liquors use fluidized beds that are operated at high temperatures and pressures. These processes involve systems that are multi-phase and have complex chemical reactions. Research work has tackled a number of aspects, including mechanical engineering aspects of the reactors, reaction chemistry and products, characterization and physical properties of the ash, fouling by ash depos...
  • Location Of Raw Materials And Power Supplies
    385 words
    Materials. In 19th cent, industry located close to raw materials (and sources of power) due to immobility of the raw materials, which were heavy to move due to expensive and inefficient transport... Now, materials can be described as footloose as industry is rarely tied to the location of raw materials. There is greater efficiency in the use of raw materials, power is more mobile, transport networks have improved, as has technology... Industries which need to be located near to raw materials are...
  • Pyrotechnic Special Effects Materials
    521 words
    PYROTECHNICS Pyrotechnics special effects are widely used in motion picture production to create all types of effects involving explosions, fires, light, smoke and sound concussions. The types of pyrotechnics materials used include flash powder, flash paper, gun cotton, black powder (gunpowder), smokeless powder, detonator explosives, and many more. They are used in bullet hits (squibs), blank cartridges, flash pots, fuses, mortars, smoke pots, sparkle pots, etc. The main problems of pyrotechnic...
  • Brush And Leaves From Curbside Collection
    539 words
    The process of recycling brush and leaves from curbside collection saves the city lots of money. When residents place their clean brush at the curb, they must make sure the pile is no bigger than six feet long and six inches in diameter. All leaves must be placed in clear plastic bags. Brush is collected separately from the leaves because the leaves are taken to the comp post drop-off facility for recycling. When a waste hauler driver comes to the drop -off facility loaded with brush, he or she ...
  • Garbage In The Home
    677 words
    There are already ways of getting rid of garbage so people won't have to see it or smell it. For example there is incineration, in which trash that can't be recycled is burned. Although this meets the requirements mentioned above it has a downside. The burning itself causes waste and eventually it will have a bad effect on the environment. Recycling is a good process that reuses materials so they won't be wasted and cause waste. But many products are not recyclable, like plastics. There are a nu...
  • Final Outline
    508 words
    Preparing and Using Outlines Using an outline can help you organize your material and can also help you discover connections between pieces of information that you weren't aware of when you first conceived the plan of your paper. It can also make you aware of material that is not really relevant to the purposes of your paper or material that you have covered before and should therefore be removed. A Working Outline might be only an informal list of topics and subtopics which you are thinking of ...
  • Problem The Polyurethane Foam Industry
    922 words
    Polyurethane Polyurethanes are very versatile thermoset plastics that were originally developed for military use by Otto Bayer in the late 1930's. They are so versatile that they can be made into a compound as soft as bubble-gum, or they can also be formed into compounds that are as hard as a soft metal. This is why they are so common in our everyday life's. Today a wide variety of polyurethanes are used for many different applications, such as; flexible polyurethanes are used to make sofas, cus...
  • Postmodern Materialism And Cultural Theory
    637 words
    Postmodern materialism and sub semantic cultural theory 1. Structuralist rationalism and the sub capitalist paradigm of reality In the works of Gibson, a predominant concept is the concept of truth. The primary theme of the works of Gibson is not narrative, but neo narrative. But the closing / opening distinction prevalent in Gibson's Neuromancer is also evident in Id oru, although in a more sense. Lyotard's model of sub dialectic Marxism suggests that the significance of the poet is significant...
  • Art Of Batik Ing
    605 words
    Batik Elaborately decorated fabrics and patterns can be seen almost everywhere in the world today. Batik ing is a type of decorated fabric, which usually depicts motifs of flowers, birds, butterflies and other natural objects, or simple geometric forms. These designs are rich in symbolic heritage and variety; to date there are over three thousand recorded batik patterns. To perform the art of batik ing, one must know a little about its origin, the necessary materials, and the method of creating ...
  • Materials My Product
    399 words
    The main function of my project is to provide a means by which I can measure progress. It will therefore have to provide resistance when it is used, and have an indicator, which when force is applied to the product will light up. Safety Safety is a very important factor in technology of any kind. Toxicity My product must not be toxic or poisonous in any way. I should use a material that is not made with any chemicals that could damage the skin or enter the bloodstream. Sharp Corners and Edges As...
  • Thermal Conductivity Of Ceramics
    2,425 words
    Introduction First we will start with the definition of refractories and ceramics. Refractories and ceramics are non-metallic materials capable of maintaining physical and chemical stability at high temperatures. Refractories in modern practice are usually ceramic in nature, and are used in a wide variety of primary, secondary and tertiary industries. Wherever an industrial process involves heat in excess of 700 to 800 degrees Fahrenheit (roughly), one will find refractory material in place, eit...
  • Characteristic Of Every Material Under Various Forces
    561 words
    Different shapes resist forces in different ways, so as every material withstands forces differently. To design a good and safe bridge, an engineer must know the forces in every member of the bridge. In turn, he must choose the appropriate material for that member, or for all members. He must know the characteristic of every material under various forces which may occur on the bridge. For example, should he choose concrete or stone for the pier and abutment? Is it steel instead of concrete which...
  • Use Of Stone
    1,107 words
    Michael Graves has been a forerunner in architecture since 1964. He has won many awards and is influenced the transformation of urban architecture from abstract to modern. He founded his own practice which can be attributed for constructing some of the most well known builds in the world such as the Miramar Hotel for the Egyptian town El Gonna on the Red Sea. The Sheraton Miramar is a 5-star resort hotel consisting of over 400 guest rooms plus public spaces such as food and beverage facilities. ...
  • Ramp's Surface The Speed Of The Trolley
    2,566 words
    Friction Investigation Introduction In this experiment the aim is to discover which material opposes the motion of a trolley travelling down a ramp. This opposing motion is called friction and acts between two surfaces. To determine which material has opposed the motion of the trolley the most, the speed at which the trolley travels down the ramp when a material is used on the surface of the ramp will be measured. In this experiment the independent variable is: The different materials used for t...
  • Polyurethane Foams
    779 words
    Originally two German chemists named Wertz, in 1848, and Hentschel, in 1884 made the first Isocyanate, one of the building blocks of Polyurethane. Originally polyurethane was developed for military use by Otto Bayer, in the late 1930's, and was the first to make polyurethane commercially available. Molecular Structure Polyurethane is a polymer that consists of repeating units [ROOCNHR'] n. 'R' can represent a different alkyl group, which is obtained by removing a hydrogen atom from a hydrocarbon...

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