Silver medal

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  • The Importance Of Conductivity In Polymers

    A polymer is a large molecule which is formed by repeated linkage of small molecule called monomers. Conducting polymer have been the subjects for many decades as possible synthetic metals. Many of these polymer, especially those with a conjugated pi-bond system ,often yield higher conductivity once having undergone the doping process. Polymers are typically insulators due to their very high resistivity .Insulators have tightly bound electrons so that nearly no electron flow occurs ,and they offer high resistance to charge flow. Conductance free electrons are needed. Conductivity in polymer can be induced by delocalizing their orbital with conjugated p-electron backbones. Discovered in the late seventies (1977) by Alan Heegar , Dr. Hideki Shirakawa and Alan Macdiarmid Before that polymers were used as insulators in the electronic industry. Within the past years, polymeric a material has been synthesized which possess electrical conductivity on par with metallic conductors.Such polymers are conducting polymers. Conductivities is high.On volume basis, this value Is equal to one fourth of the conductivity of copper,or is twice its conductivity on the basis of weight. • TYPES OF CONDUCTING POLYMER 1. INTRINSICALLY CONDUCTING POLYMER 2. DOPED CONDUCTING POLYMER 3.EXTRINSICALLY CONDUCTING POLYMER 4. COORDINATE CONDUCTING POLYMER 1. INTRINSICALLY CONDUCTING POLYMER They are also known as conjugated pi-electrons conducting polymer. It the polymer whose backbones i.e.…

    Words: 841 - Pages: 4
  • Police Brutality In China

    China really only started coming to the Olympics in the early 90’s and wasn 't really known for anything athletic before then. In 2008 China ranked #1 overall in the Olympics finishing with 51 gold medals, 21 silver medals, and 28 bronze medals. China 's best sports at the Summer Olympics are badminton, diving, gymnastics, shooting, table tennis, and weightlifting. China is known for soaring in table tennis and has won 23 of 27 gold medals for table tennis in the Olympics. Although China may not…

    Words: 979 - Pages: 4
  • In Another Country Hemingway

    He ended up with an injured leg and in a hospital in Milan and was rewarded a silver medal for his bravery, but this meant his career was in the military was over. In the short story, In Another Country, the American soldier in the story, who is also the narrator and Ernest Hemingway have almost identical aspects. The American soldier is in the hospital in Milan for a leg injury; he cannot bend his knee. He proceeds to talk about how he received a medal saying “…were written in very beautiful…

    Words: 769 - Pages: 4
  • Friction Characteristics Of NCD Vs Alumina Balls Analysis

    3.4. Friction Characteristics of the NCD, MCD and boron doped NCD Coatings against Alumina Balls The friction coefficient curves of NCD, MCD and boron-doped diamond films sliding with Al2O3 balls are shown in figure 4, figure 5 and figure 6, respectively, for a sliding speed of 8 m/s and a load of 1N, 5N and 10N, respectively. Figure 4 (a), figure 5 (a) and figure 6 (a) show the friction coefficient of NCD, MCD and BDNCD at 1 N, respectively. Figure 4 (b), figure 5 (b) and figure 6 (b) show…

    Words: 1091 - Pages: 5
  • EDS Analysis: FESEM And Trends Analysis Of Pure HA

    3.1.3 FESEM and EDS analysis The structural morphology of the Pure HA, Sr-doped HA, La-doped HA and La/Sr co-doped HA (different La concentrations of 0.03, 0.06 and 0.1M) nanoparticles are analyzed by FESEM images are shown in Fig. 3 (a)-(f). The morphology of pure HA shown in Fig 3 (a) indicates that formation of spherical (or) chain pearl shape of nanoparticles, ranging from 70 to 84nm. Further, Sr (0.1M) doped HA and La (0.1M) doped HA belongs to Fig.3 (b)-(c), appears the formations of few…

    Words: 746 - Pages: 3
  • XRD) Pattern Of Sn-Substituted Ni-Zn Ferration

    3. Results and discussion 3.1. XRD analysis The X-ray diffraction (XRD) pattern of Sn-substituted Ni-Zn ferrites with the chemical composition of Ni0.6-x/2Zn0.4-x/2SnxFe2O4 (NZSFO) are shown in Fig. 1. The XRD spectra were indexed and fcc cubic phase was identified. The structural parameters are calculated from the XRD data and have been discussed in Ali et al [6]. The lattice constants are calculated from the XRD data and represented in Table 1. The distances between the magnetic ions at…

    Words: 1420 - Pages: 6
  • The Stockbridge Cup Analysis

    The Stockbridge Cup, 1870 British, London The second piece is dish designed by Henry Hugh Armstead (British, London 1828–1905 London). For firm of Hancock and Co., London, England. The material of this dish is silver and parcel gilt. The diameter is 28 1/4 in. (71.8 cm)This dish is metal work silver. Also, it is gift of Margaret A. Darrin, 1990. This large dish was the prize winner of the Stockbridge race, run every year, with a silver "cup" for the owner of the winning…

    Words: 962 - Pages: 4
  • Essay On Alexander The Great Symbolism

    The coins of Alexander the Great remain relevant long after his life, becoming a powerful symbol for the basis of future coinage as well (Kontes 1; Goldsborough 2; Bieber 81; Breckenridge 134; Sheedy 30-2; Jenkins 217; Morkholm, Grierson, and Westermark 43). These coins circulate the fame of Alexander as well as demonstrating his power throughout the empire (Stewart 95). Alexander’s coins create “a new centralization of power” (Stewart 160). Furthermore, they emphasize his domination over Asia…

    Words: 1646 - Pages: 7
  • The Devil In The White City Figurative Language

    symbolic of how women perceived Holmes as more exciting and magical than the average man, or in this case Ned. It is another crucial description that Larson provides the reader. It allows another reminder of Holmes’ facade. The final demonstration of Larson’s use of symbolism is “ He pulled the stopper from a dark amber bottle of liquid and immediately felt its silvery exhalation in his own nostrils” (148). The description Larson offers of the liquid is the word “dark”. Though simply speaking,…

    Words: 947 - Pages: 4
  • Similarities Between Gopnik's Essay 'The World And Other Places'

    disadvantage to the individual because they get so caught up in the future possibilities that they do not appreciate or take advantage of their realities. When individuals live in their imagination or dreams it causes them to avoid the truth of their realities. For the reason that when someone puts their best foot forward, they are expecting a good result. In Gopnik’s essay, she gives an example about Olympic medalists and poses the question of who is happier the silver or the bronze medalist?…

    Words: 1494 - Pages: 6
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