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Английский язык, опубликовано 2018-08-22 20:47:52
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Английский язык, опубликовано 2018-08-22 20:47:51
Переведите пожалуйста Researchers have long believed that supercomputers give universities a competitive edge in scientific research, but now they have some hard data showing its true. A Clemson University team found that universities with locally available supercomputers were more efficient in producing research in critical fields than universities that lacked supercomputers. A supercomputer that can do 551 trillion calculations per second is housed at Clemsons Information Technology Center. While the cost of supercomputers is easy to quantify, their benefits have been less understood, researchers said. Previous reports have shown anecdotally that the United States is more competitive by investing in high-performance computing. The Clemson research was the first of its kind to put numbers behind the assumption. "For the nation, it is unequivocal that a high-performance computing system will provide an advantage in doing research in several fields," Amy Apon said. "Its not uniform across all fields. But for fields where it matters, it matters a lot." Apon, who led the study, said the fields that benefited the most were chemistry, civil engineering, physics and evolutionary biology. The study used a National Research Council survey of 212 institutions, including 177 universities with high or very high research levels. Authors of the study were Apon, Paul W. Wilson, Linh B. Ngo and Michael E. Payne. Wilson, the lead economist on the study, said the research begins to give policymakers data to consider as they decide whether supercomputers make economic sense. "The project contributes not only to science and innovation policy, but also to cyber-infrastructure investment decisions," he said. "While many would agree that high-performance computing has a positive effect on research output, the connection has been assumed and qualitative until now," he said. "This is a critical first step in creating a model for evaluating investments in high-performance computing." The results were encouraging to Jim Bottum, who oversees the Palmetto Cluster as Clemsons chief information officer and vice provost for computing and information technology. The Palmetto Cluster ranked as the sixth fastest supercomputer at public universities in the United States, according to the November edition of the Top500 list. "The studys results reaffirm that computing is centrally important to research and a wise investment that helps the nation maintain its competitive edge in science, engineering and technology," said Bottum, who was not involved in the research. As part of the study, universities were divided into "haves" and "have-nots." The universities in the "haves" list were those that had supercomputers in the Top500 list, and the have-nots were the rest. Researchers considered "input" and "output" variables that affect efficiency. Input variables were the total number of faculty members and incoming graduate students average GRE scores, which were used as a way of measuring of students capabilities. The "output" variables were the total number of publications for the academic year and the number of Ph.D. degrees awarded. The biggest effect was in chemistry, where haves were estimated to be almost twice as efficient as have-nots. In civil engineering, haves were found to be about 35 percent more efficient than have-nots. Differences between haves and have-nots in evolutionary biology and physics were smaller but statistically significant. In particular, haves were estimated to be about 11 and 9 percent more efficient than have-nots in the two disciplines, respectively. The efficiency levels estimated by the researchers give a measure of how close observed research output is to feasible, potential research output. Apon is chair of the Computer Science Division in the School of Computing. She previously founded and ran a high-performance computing center at the University of Arkansas. The study is titled, "Assessing the Effect of High Performance Computing Capabilities on Academic Research Output" and was published in Empirical Economics. Eileen Kraemer, the C. Tycho Howle Director of the School of Computing, said that the research highlights Clemsons strengths in data-enabled science and high-performance computing. "The research provides statistical evidence and some quantification," she said. "This should give decision-makers some important information as they allocate funding."
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Английский язык, опубликовано 2018-08-22 20:47:47
Утворіть питальні та заперечні речення. 1. You know the answer. 2. He has breakfast at 8.00. 3. He loves her. 4. Some pupils wear uniforms. 5. He trusts you. 6. The park closes at dusk. 7. He misses his mother. 8. The children like sweets. 9. He finishes work at 6.00. 10. He lives beside the sea. 11. This stove heats the water. 12. He usually believes you. 13. She plays chess very well.14. He leaves home at 8.00 every day. 15. Ann arranges everything. 16. She agrees with you.17. Their dogs bark all night. 18. Their neighbours often complain. 19. Tom enjoys driving at night. 20. Tom looks very well. 21. They sell fresh grape juice here. 22. He charges more than other photographers. 23. The last train leaves at midnight. 24. He relaxes at weekends. 25. She refuses to discuss it.. Утворіть питальні та заперечні речення. 1. She saw your brother. 2. We heard a terrible noise. 3. He slept till 10.00. 4. He looked at the picture. 5. They drank all the wine. 6. They set out early enough. 7. She thought about it. 8. The police caught the thief. 9. He hid the letter. 10. She found her watch. 11. My mother chose this hotel. 12. She lent you enough money. 13. Keiko taught Japanese. 14. Tom hurt his foot. 15. He broke his arm. 16. His wife came at 8.00. 17. He lost his wallet. 18. His son wrote a novel. 19. They flew to New York. 20. Ann drew you a map. 21. Tom laid the table. 22. Mr. Pitt fell downstairs. 23. She lost her way. 24. He forbade her leave. 25. I sent it to the laundry. 26. Jack kept the money. 27. He rode slowly. 28. They spent it all. 29. She sold the car. 30. Jean rang the bell. 31. The sun rose at 6.00. 32. The boys ran home. 33. He shook the bottle. 34. He forgave her.
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Английский язык, опубликовано 2018-08-22 20:47:42
Помогите перевести текст на русский. Text: THE HISTORY OF KAZAKHSTAN Kazakhstan, officially Republic of Kazakhstan, has the population of 15,186,000 people and territory 2,719,500 sq km, is situated in central Asia. It borders on Siberian Russia in the north, China in the east, Kyrgyzstan, Uzbekistan, and Turkmenistan in the south, and the Caspian Sea and European Russia in the west. Astana is the capital and Almaty (Alma-Ata) is the largest city. Other major cities include Shymkent, Semey, Aqtobe, and Oskemen. Kazakhstan consists of a vast flatland, bordered by a high mountain belt in the southeast. It extends from the lower Volga and the Caspian Sea in the west to the Altai Mts. in the east. It is largely lowland in the north and west, hilly in the center (Kazakh Hills), and mountainous in the south and east (Tian Shan and Altai ranges). Kazakhstan is a region of inland drainage; the Syr Darya, the Ili, the Chu, and other rivers drain into the Aral Sea and Lake Balkash. Most of the region is desert or has limited and irregular rainfall. The population of Kazakhstan consists mainly of Muslim Kazakhs and Russians; there are smaller minorities of Ukrainians, Germans, Uzbeks, and Tatars. Kazakh, a Turkic language, is the official tongue, but Russian is still widely used. Despite Kazakhstans largely arid conditions, its vast steppes accommodate both livestock and grain production. Wheat, cotton, sugar beets, and tobacco are the main crops. The raising of cattle and sheep is also important, and Kazakhstan produces much wool and meat. In addition, there are rich fishing grounds, famous for their caviar-producing sturgeon, in the Caspian, although these have been hurt by overfishing. The Kazakh Hills in the core of the region have important mineral resources. Coal is mined at Qaraghandy and Ekibastuz, and there are major oil fields in the Emba basin. The countrys industries are located along the margins of the country. Steel, agricultural and mining machinery, superphosphate fertilizers, phosphorus acids, artificial fibers, synthetic rubber, textiles, and medicines are among the manufactured goods. Temirtau is the iron and steel center. The Baikonur (Bayqongyr) Cosmodrome in central Kazakhstan was the Soviet space-operations center and continues to serve Russian space exploration through an agreement between the two nations. The main trading partners are Russia, Ukraine, and Uzbekistan.