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  • Temperature Of 2 17 K Superfluity
    1,286 words
    Cryogenics is a study that is of great importance to the human race and has been a major project for engineers for the last 100 years. Cryogenics, which is derived from the Greek word kayos meaning "Icy Cold", is the study of matter at low temperatures. However low is not even the right word for the temperatures involved in cryogenics, seeing as the highest temperature dealt with in cryogenics is 100 (C (-148 (F) and the lowest temperature used, is the unattainable temperature -273.15 (C (-459.6...
  • Hot During The Summer Months
    286 words
    Grasslands are extremely hot during the summer months and very cold during the winter months. The grasslands receive anywhere from 10-30 inches of rain per year. This table compares rainfall in the grasslands to other biome's Sometimes the summer are so hot that the grass catches on fire very easily. Fires are very often seen during these hot summer months. These fires are dangerous because they spread through the dry grass very quickly. During the winter, on some grasslands, the snow might be s...
  • Structure Kevlar Aramid Fiber
    781 words
    STRUCTURE Kevlar Aramid Fiber is a synthetic (man-made) material known as a Polymer. A polymer is a chain that is made up of many similar molecular groups, better known as 'monomers' that are bonded together. 'Monomers' are made up of fourteen Carbon atoms, two Nitrogen atoms, two Oxygen atoms and ten Hydrogen atoms. A single Kevlar polymer chain could possibly have anywhere from one to five million monomers bonded together. A group of polymer chains can be organised together in a fiber. How the...
  • Place With A High Temperature And Precipitation
    716 words
    There are several factors that influence the growth and distribution of a particular regions primary industries. These primary industries, are necessary for an economy to grow. Without a primary industry, which could also be called natural resources, secondary, tertiary and quaternary industries would struggle in a country (excluding Japan etc. ). These factors also affect where people live. If you were at a warm place, near the coast, it is a lot more populated, than interior America. This popu...
  • Chromium Steel Alloys
    527 words
    Chromium Chromium is a very hard, brittle, gray metal, which is sometimes referred to as Siberian red lead. It does not rust easily and becomes shiny and bright when it is polished. The shiny trim on our automobile bumpers and doorhandles is usually electroplated chromium. Most chromium comes from something called chromite which is a mixture of chromium, iron, and oxygen. Chromite is a common rather ordinary black mineral that no one really noticed until more recent times. Nearly all the world's...
  • 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...
  • Restorative Materials And Prosthetic Devices
    957 words
    To improve the human identification process possibilities by the aid of forensic odontology. Particularly we considered to carry out an experimental study to learn more about the changes that dental remains, restorative materials and prosthetic devices undergo when exposed to very high temperatures, defining their behaviour and morphology with the aim to edit a reference table. In large scale disasters associated with fire the damage caused by heat can make medico-legal identification of human r...
  • Amylase At Extreme Temperatures
    921 words
    Amylase and Starch experiment We took 3 trays, the name for the trays I have forgotten but they had about 12 small craters in each. We put a couple of drops of iodine into each crater. Then we took a syringe and filled it up to the 10 mark with starch solution, then, with the same syringe we sucked up a further 5 of amylase. We took a stopwatch and every 30 seconds we put a drop from the syringe into one of the craters and recorded the colour. To begin with, the resultant colour was black, indic...
  • Critical Current Capacity Of High Temperature Superconductor
    830 words
    Large scale applications of high transition temperature, Tc superconductor require critical current density (Jc) of at least 105 A / cm 2 at liquid nitrogen temperature. Due to their low flux pinning energy, the critical current decreases rapidly with increasing temperature and applied magnetic field. Among the cuprate high Tc materials, the Bi (Pb) -Sr-Ca-Cu-O is considered to be the most promising superconducting materials for application due their high Tc and Jc. The bismuth based cuprate sup...

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