• Title/Summary/Keyword: Society and history

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A study about WangHaogu's medical stuffs and theory of Shanghan (왕호고(王好古)의 약물(藥物) 및 상한이론(傷寒理論)에 대한 연구(硏究))

  • Jo, Byoung Il;Kim, Yong Jin
    • The Journal of Korean Medical History
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    • v.20 no.1
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    • pp.7-12
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    • 2007
  • Wang Hao Gu is a famous Chinese medical scientist of the 13 century. He studied the oldest classic in China, Huangjaenaekyung, and also studied Zhangzhongjing's medical documents. He was influenced by contemporary medical scientists Zhang Yuan Su and Li Dong Yuan, and came up with an original medical theory Yinzheng. Although he is of considerable importance in the history of medicine, not many studies on him were done in Korea although Korean medicine was influenced by Chinese medicine. This study focuses on the study of his insight on medical stuffs and theory of Shanghan.

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A Study of medical cases of burns (탕화상(湯火傷) 의안(醫案) 연구)

  • Bang, Sunh Hye;Kim, Hong-kyoon;Kim, Nam Il
    • The Journal of Korean Medical History
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    • v.21 no.2
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    • pp.49-60
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    • 2008
  • Burn is a malady that has tormented mankind for a while, and Traditional Korean Medicine techniques of treating it has constantly improved. Detailed description of treatment methods of burns are mentioned in Traditional Korean Medicine texts. To treat burns both medicines for internal and external use are needed, and appropriate first aid is necessary in the first stages. A total of eleven medical cases about burns could be found in the process of researching texts, and studying these 의안s indicated that burns were admirably cured with Korean Traditional Medicine methods of treating burns. Differences in the treatment methods between different schools could also be observed. Further research and development of Traditional Korean Medicine methods of burns is needed.

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Response of Base Isolation System Subjected to Spectrum Matched Input Ground Motions (스펙트럼 적합 입력지반운동에 의한 면진구조의 응답 특성)

  • Kim, Jung Han;Kim, Min Kyu;Choi, In-Kil
    • Journal of the Earthquake Engineering Society of Korea
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    • v.17 no.2
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    • pp.89-95
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    • 2013
  • Structures in a nuclear power system are designed to be elastic even under an earthquake excitation. However a structural component such as an isolator shows inelastic behavior inherently. For the seismic assessment of nonlinear structures, response history analysis should be performed. In this study, the response of base isolation system was analyzed by response history analysis for the seismic performance assessment. Firstly, several seismic assessment criteria for a nuclear power plant structure were reviewed for the nonlinear response history analysis. Based on these criteria, the spectrum matched ground motion generation method modifying a seed earthquake ground motion time history was adjusted. Using these spectrum matched accelerograms, the distribution of displacement responses of the simplified base isolation system was evaluated. The resulting seismic responses excited by the modified ground motion time histories and the synthesized time history generated by stochastic approach were compared. And the response analysis of the base isolation system considering the different intensities in each orthogonal direction was performed.

수학과 음악

  • 김성숙
    • Journal for History of Mathematics
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    • v.15 no.2
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    • pp.93-100
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    • 2002
  • Mathematics and music play very different roles in our society. However, they are closely related to each other In the time of the ancient Greeks, they were strongly connected. This paper identifies such connection and concludes that music has mathematical characteristics.

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On Euler : His Life and Mathematics, and Euler Archive (오일러가 수학사에 미친 영향에 대한 소고 오일러의 탄생 300주년을 기념하며)

  • Koh, Young-Mee;Ree, Sang-Wook
    • Journal for History of Mathematics
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    • v.20 no.3
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    • pp.27-42
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    • 2007
  • Many countries in the world are celebrating the tercentenary of the birth of L. Euler. One of them to notice is the construction of the Euler Archive, which is an online archive, made by two Ph.D. graduates from Dartmouth College. On the appearance of the archive, the authors remind of the life and works of mathematician L. Euler, who is considered as the most prolific, prominent, and versatile mathematician with the huge volume of his works as well as their importances, in the history of mathematics. Celebrating the 300th birthyear of L. Euler and the appearance of Euler Archive, authors suggest The Korean Society for History of Mathematics of investigating on Euler by ourselves as Koreans, and furthermore translating some works of his. Such works may stimulate interests in mathematics and its history to students as well as scholars.

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An Analytic Study on the History of Natural Number Concept (자연수 개념의 역사에 관한 분석적 고찰)

  • Ko Jung-Hwa
    • Journal for History of Mathematics
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    • v.18 no.2
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    • pp.9-22
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    • 2005
  • Natural numbers have not yet been studied adequately on the aspect of its historical development in spite of its mathematical and educational importance. This article studied the historical development of natural number concept, that is, its historical meaning in the mathematical development process and influence of cultural and social element in relation with way of understanding number. From these examinations, we identified some characteristics in the history of natural number concept.

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Historical research of the Chi Jong Cheong, - korean ancient tumor medical center (치종청(治腫廳)에 대한 의사학적 고찰)

  • Seo, Ji Youn;Kim, Nam Il;Ahn, Sang Woo
    • The Journal of Korean Medical History
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    • v.20 no.1
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    • pp.13-21
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    • 2007
  • In Korea tumors occurred frequently, and the tumor medicine used to treat them developed. Because tumors due to Koreans' physical constitution and environment and there has always been an impeding need for a cure, traces of such efforts can be found throughout Korean medical history. During the mid-Chosun dynasty, the government founded a government office that specialized in curing tumors. This study observes the establishment and operation of this institution.

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Branch Prediction with Speculative History and Its Effective Recovery Method (분기 정보의 추측적 사용과 효율적 복구 기법)

  • Kwak, Jong-Wook
    • The KIPS Transactions:PartA
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    • v.15A no.4
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    • pp.217-226
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    • 2008
  • Branch prediction accuracy is critical for system performance in modern microprocessor architectures. The use of speculative update branch history provides substantial accuracy improvement in branch prediction. However, speculative update branch history is the information about uncommitted branch instruction and thus it may hurts program correctness, in case of miss-speculative execution. Therefore, speculative update branch history requires suitable recovery mechanisms to provide program correctness as well as performance improvement. In this paper, we propose recovery logics for speculative update branch history. The proposed solutions are recovery logics for both global history and local history. In simulation results, our solution provides performance improvement up to 5.64%. In addition, it guarantees the program correctness and almost 90% of additional hardware overhead is reduced, compared to previous works.

A Branch Predictor with New Recovery Mechanism in ILP Processors for Agriculture Information Technology (농업정보기술을 위한 ILP 프로세서에서 새로운 복구 메커니즘 적용 분기예측기)

  • Ko, Kwang Hyun;Cho, Young Il
    • Agribusiness and Information Management
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    • v.1 no.2
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    • pp.43-60
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    • 2009
  • To improve the performance of wide-issue superscalar processors, it is essential to increase the width of instruction fetch and the issue rate. Removal of control hazard has been put forward as a significant new source of instruction-level parallelism for superscalar processors and the conditional branch prediction is an important technique for improving processor performance. Branch mispredictions, however, waste a large number of cycles, inhibit out-of-order execution, and waste electric power on mis-speculated instructions. Hence, the branch predictor with higher accuracy is necessary for good processor performance. In global-history-based predictors like gshare and GAg, many mispredictions come from commit update of the branch history. Some works on this subject have discussed the need for speculative update of the history and recovery mechanisms for branch mispredictions. In this paper, we present a new mechanism for recovering the branch history after a misprediction. The proposed mechanism adds an age_counter to the original predictor and doubles the size of the branch history register. The age_counter counts the number of outstanding branches and uses it to recover the branch history register. Simulation results on the SimpleScalar 3.0/PISA tool set and the SPECINT95 benchmarks show that gshare and GAg with the proposed recovery mechanism improved the average prediction accuracy by 2.14% and 9.21%, respectively and the average IPC by 8.75% and 18.08%, respectively over the original predictor.

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