• 제목/요약/키워드: IT major

검색결과 23,144건 처리시간 0.047초

Characteristic Changes of the Changma Season in the 2000s

  • Lee, Jun-Youb;Yoon, Ill-Hee
    • 한국지구과학회지
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    • 제33권5호
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    • pp.422-433
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    • 2012
  • The purpose of this study is to investigate the characteristic changes of the Changma season in the 2000s. To accomplish this goal, we have used daily rainfall data collected over nearly 40 years (1971 to 2010). The average summer precipitation data including the Changma season were collected from 16 weather stations that are placed across the three major regions (i.e. central region, southern region, and Jeju region) as Korea Meteorological Administration divided. These precipitation data were analyzed to find out characteristic changes of the Changma season. Results of the precipitation data comparison among the major regions that, monthly average precipitation in the central region was the highest in July; its precipitation tended to increase from May to September. In the southern region, the precipitation amount was lowest in June and tended to increase in May, September, and August. In the Jeju region, the precipitation has been the highest in June and July for the past 30 years, whereas September has been highest month in the last 10 years. The precipitation amount in the Jeju region decreased both in June and July, whereas it tended to grow in May, August and September. A correlation coefficient formula by Karl Pearson has been used to find out correlations between the Changma season and the precipitation of the major regions in 2000s and normal years. It was found that the correlation coefficient has decreased from 0.723 to 0.524 in the 2000s (2001 to 2010) compared to normal years (1971 to 2000).

The Modernization of the Korean Housing Under the Japanese Colonial Rule

  • Sohn, Sei-Kwan;Jun, Nam-Il;Hong, Hyung-Ock;Yang, Se-Hwa
    • International Journal of Human Ecology
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    • 제7권1호
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    • pp.1-12
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    • 2006
  • The numerous changes made during the Japanese colonial rule became the basis of the current housing in Korea. Therefore, in order to understand the modern Korean housing, it is essential to understand what the Korean traditional life styles admitted or changed, and how the foreign culture of that time influenced the Korean housing under the Japanese colonial rule. Content analysis through literature review was utilized for the study, and specific sources were research papers, books, magazines, newspapers, and novels. The period during the Japanese invasion was the most active era of modernization in the Korean history. For the housing culture, especially, it can be considered as the most significant period that accepted new housing cultures that replaced the old traditional housing. The Japanese and the Western styles of housing were introduced, new materials and collective production methods were used, and the symbol of the current urban housing in Korea, multi-family dwelling, was constructed. In conclusion, the Koreans did not directly use the Japanese and western housing culture, which were constructed during the Japanese colonial period. They were adapted and altered into Korean style, and eventually, produced various eclectic housing styles.

ADR제도의 비교법적 연구 - 아시아의 주요 국가를 중심으로 - (A Comparative Legal Study on ADR - Focusing on Major Asian Countries -)

  • 김상찬
    • 한국중재학회지:중재연구
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    • 제19권3호
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    • pp.67-91
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    • 2009
  • Nowadays, Alternative Dispute Resolution in terms of reconciliation, arbitration, and mediation is in the spotlight as a try to overcome the limits of a lawsuit as well as the judicial reform. Since many articles have studied ADR in America, Germany, Japan and the like which developed the system in advance, this article compares ADR in major Asian countries including China, Indonesia, Singapore, Thailand, Malaysia, India, and Vietnam etc. introducing ADR organizations as well. On the matter of vigorous trade and investment between Asian countries currently, it seems inevitable not to have consequential disputes through international exchange. Thus it will be very useful to know the law to resolve the conflict between the countries involved. This article is written to help to resolve the disputes in Asian countries and provide research materials to develop ADR in Korea by comparing the ones in major Asian countries. In addition, the comparative study of ADR in Asian countries should be continued to find the model which best fits in Asia as well as to nurture talent.

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Park's Vector Approach의 위상각 변이를 활용한 유도전동기 고정자 고장진단 (A Stator Fault Diagnosis of an Induction Motor based on the Phase Angle of Park's Vector Approach)

  • 고영진;이범;송명헌;김경민
    • 제어로봇시스템학회논문지
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    • 제20권4호
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    • pp.408-413
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    • 2014
  • In this paper, we propose a fault diagnosis method based on Park's Vector Approach using the Euler's theorem. If we interpreted it as Euler's theorem, it is possible to easily find the phase angle difference between the healthy condition and the fault condition. And, we analyzed the variation of the phase angle and performed the diagnostic method of the induction motor using feature vectors that were obtained by using a Fourier transform. The analysis of time and speed variation of the motor was performed and, as a result, we could find more soft variations than rough variations. In particular, the analysis of the distortion through each phase shows that two-turn and four-turn shorted motors are linearly separable. In this experiment, we know that the maximum breakdown threshold value for determining steady-state fault detection is 49.0788. Simulation and experimental results show the more detectable than conventional method.

중재합의시 중재지 결정에 관한 연구 (A Study on the Fixing the Place of Arbitration in Arbitration Agreement)

  • 오원석;서경
    • 통상정보연구
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    • 제12권4호
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    • pp.429-453
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    • 2010
  • The purpose of this paper is to examine the significances of choosing the place of arbitration, the principles of fixing the place, which the major international arbitration institutions(including the ICC, LCIA, AAA, CIETAC and so on) have in their arbitration rules, and the methods of drafting the place of arbitration in arbitration agreements. When the contract parties have agreed on the place of the arbitration, the institutions have no role regarding the selection of the place of arbitration. But the parties have not agreed on the place of arbitration, it is fixed by the rules of selected institution, by considering the lists of criteria including local laws, N.Y. Convention, neutrality, convenience and so on. This author suggested four alternatives on how to designate the place of arbitration, and advantages and disadvantages of each one: the place of claimant, the place of respondent, the place agreed on in advance in Bilateral Agreement between two Arbitration Institutions established in two countries or the third country. In conclusion, the decision of all elements in the international contract is greatly influenced by the power of negotiation, and the place of arbitration in arbitration agreement has a lot of influential significances on both parties when resolving the disputes. So it is advisable for the parties to fix the place according to the global standard(the place of respondent), the arbitration rules of major international arbitration institutes and the result of the negotiation between parties.

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저층 트롤의 그물입구 형상과 소해 단면적 (The gear shape and cross section of sweep at mouth of a bottom trawl)

  • 박해훈;조봉곤;고광수;장호영
    • 수산해양기술연구
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    • 제44권2호
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    • pp.120-128
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    • 2008
  • Estimation of the gear shape and cross section of sweep at mouth of a bottom trawl net was described and applied to the field experiments obtained with the Scanmar system. The shape of the trawl net from wingend to the beginning of codend was assumed to be part of an elliptic cone of which the cross section was ellipse, and that of the float rope be of form $y_f=a_fx^{bf}$. In case of a bottom trawl with warp 180m long, the radius of ellipse, the cross section of sweep at mouth, the eccentricity of the ellipse, the inclination angle of float rope and the contribution of the side panel to net height were estimated in accordance with towing speed. The horizontal radius of the upper ellipse increased with increasing towing speed, the eccentricity of it became slightly bigger as increasing the towing speed which meant the shape of it being flat. And the inclination angle of the float rope was about between 7 and 12 degrees in case of the above bottom trawl.

대장균에서 Chlamydia psittaci MOMP 유전자의 과발현과 순수분리 (Over-expression of Chlamydia psittaci MOMP in Escherichia coli and its purification)

  • 하정순;이도부;한상훈;임윤규;윤병수
    • 대한수의학회지
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    • 제46권1호
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    • pp.13-19
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    • 2006
  • Generally known psittacosis or ornithosis is a disease of birds caused by the bacterium Chlamydia psittaci. Humans are accidential hosts and are most commonly infected from avian sources. It raises hepatitis or neurosis. As major outer membrane protein (MOMP) of Chlamydia psittaci has been known to play a role in the avoidance of host immune defenses, research on developing a Chlamydia vaccine has focused on the MOMP. In this study, the gene encoding the major outer membrane protein (MOMP) of the Chlamydia psittaci strain 6BC was cloned and expressed in Escherichia coli strain M-15. The recombinant DNA was cloned by fusion prokaryotic expression vector pQE30-GFPII. Expression of the recombinant protein was performed in E. coli and was induced by IPTG. The size of expressed recombinant protein is 74.220 kDa (MOMP, 43.260 kDa; GFP expression region, 30 kDa; $6{\times}His$ tag, 960Da). This protein was purified by using his-tagging-inclusion body. Recombinant protein was reconfirmed through ELISA test and western blot with antibody against pQE30-GFPII. It will be useful antibody development.

방울토마토 대일(對日) 적정수출시기(適正輸出時期)에 관한 연구(硏究) - 부여 방울 토마토를 중심으로 - (A Study on Optimal Period for Mini Tomato to be Exported to Japan - With Special Reference to Puyo Mini Tomato -)

  • 이동재;김철호
    • 농업과학연구
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    • 제24권2호
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    • pp.138-144
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    • 1997
  • Korean agricultural and rural economics has been gotten more difficult through the introduction of economics system under the control of IMF before problems from open market system under WTO get to be settled. Export should be promoted to get the advantage of open market system and to get over today's economic crisis from shortage of foreign currency. Fortunately, Korea adjoins Japan that is largest importing country of agricultural products in a world, therefore Korean Agricultural products has advantage in export to Japan through open market system. Puyo tomato, specialized agricultural products in Chungman province, has been exported 42.2M/T to Japan from 1994 year to 1996 year. But such exported amount was so small that is less than a 1% of total tomato product in Puyo area. Reasons why export volume to Japan was so small were non standard commodities, non performance of export contract, unfavorable price condition, etc.. But it was major reason that missed optimal exporting period. Therefore this study is aimed at finding optimal period exporting Puyo mini tomato to Japan. According to result of analysis based on monthly price and carried quality data of major tomato market between Korea and Japan, it has more comparative advantage that we export tomato during Period of Dec-Feb. rather than March-May which is currently major exporting period.

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Characterization of Fibrinolytic Proteases from Gloydius blomhoffii siniticus Venom

  • Choi, Suk-Ho
    • 대한약침학회지
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    • 제14권3호
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    • pp.71-79
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    • 2011
  • Objectives : This study was undertaken to identify fibrinolytic proteases from Gloydius blomhoffii siniticus venom and to characterize a major fibrinolytic protease purified from the venom. Methods : The venom was subjected to chromatography using columns of Q-Sepharose and Sephadex G-75. The molecular weights of fibrinolytic proteases showing fibrinolytic zone in fibrin plate assay were determined in SDS-PAGE (Sodium dodecyl sulfate-polyacrylamide gel electrophoresis) The effects of inhibitors and metal ions on fibrinolytic protease and the proteolysis patterns of fibrinogen, gelatin, and bovine serum albumin were investigated. Results : 1) The fibrinolytic fractions of the three peaks isolated from Gloydius blomhoffii siniticus venom contained two polypeptides of 46 and 59 kDa and three polypeptides of 32, 18, and 15 kDa and a major polypeptide of 54 kDa, respectively. 2) The fibrinolytic activity of the purified protease of 54 kDA was inhibited by metal chelators, such as EDTA, EGTA, and 1,10-phenanthroline, and disulfhydryl-reducing compounds, such as dithiothreitol and cysteine. 3) Calcium chloride promoted the fibrinolytic activity of the protease, but mercuric chloride and cobalt(II) chloride inhibited it. 4) The fibrinolytic protease cleaved preferentially A${\alpha}$-chain and slowly B${\beta}$-chain of fibrinogen. It also hydrolyzed gelatin but not bovine serum albumin. Conclusions : The Gloydius blomhoffii siniticus venom contained more than three fibrinolytic proteases. The major fibrinolytic protease was a metalloprotease which hydrolyzed both fibrinogen and gelatin, but not bovine serum albumin.

벤치 프레스 운동 시 하중에 따른 어깨가슴관절의 움직임이 어깨복합체 근 활성도에 미치는 영향 (Effect of Scapulothoracic Joint Movement and Resistance Training Intensity on Shoulder Complex Muscle Activation during Bench Press Exercise)

  • 김윤환;이기광;이만기
    • 한국운동역학회지
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    • 제23권2호
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    • pp.141-148
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    • 2013
  • The purpose of this study was to investigate the scapulothoracic joint movement between different weight bearing contributing to effective bench press exercise. Ten male subjects participated in this study. All subjects were tested on the flat bench press machine which modified weight (50% and 70% of 1RM) and subjects were performed two different conditions(none protraction condition and protraction condition). Weight bar height and vertical velocity, EMG activation was measured using 3D motion capture system and wireless EMG analysis system. As the results, none protraction condition showed that it is more concentrate better pectoralis major muscle activation than protraction condition and middle pectoralis major, anterior deltoid and triceps brachii was significant higher integrated EMG in 70% of 1RM condition. In conclusion, limited scapulothoracic joint movement was more effective activated pectoralis major muscle all the weight through, while we could not find that it was not affected integrated EMG on eight muslces related to shoulder complex between scapulothracic joint movement conditions.