• 한국전자파학회논문지
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• 제14권6호
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• pp.599-605
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• 2003

이중모드 비대칭 canonical 구조 필터는 일반적으로 위성 중계기의 입력 멀티플렉서에 주로 사용된다. 본 논문에서는 비대칭형 canonical 필터의 용이한 합성 방법에 대하여 언급하였다. 비대칭형 canonical 필터의 결합행렬은 대칭형 canonical 필터의 결합 행렬로부터 평면 회전(plane rotation)과 같은 similarity transformation을 이용하여 구하였다. 비대칭형 canonical 필터의 결합 행렬을 구하기 위한 similarity transformation 과정에 있어서 회전 순서, 피벗(pivot), 회전각을 제시하였다. 본 논문에서 제시한 방법을 이용하여 8차 및 10차 비대칭 canonical filter의 결합 행렬을 추출하였으며, 비대칭형 canonical 필터의 주파수 응답 특성은 대칭형 canonical 필터의 주파수 응답 특성과 동일한 특성을 나타내었다.

• 한국산업정보학회논문지
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• 제8권3호
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• pp.32-41
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• 2003

본 연구에서는 실시간으로 직기를 원격 모니터링하고 또한 과학적인 직기관리를 가능케 하는 직기 관리 시스템을 구현하였다. 구현한 시스템에서는 직기배치도가 사용자 인터페이스 상에 표시되며, 각 직기의 가동상태 및 가동률이 자동으로 거기에 표시된다. 뿐만 아니라 직기들에 대해 마우스로 영역을 선택하여 선택된 직기들에 대해서만 집계 함수를 처리할 수 있는 질의 기능을 갖추고 있으며, 차트, 피벗 테이블 등 고급 집계 질의도 수행 가능하도록 함으로써, 직기 관리를 위한 의사 결정 지원 시스템의 역할을 수행할 수 있도록 하였다. 제안한 시스템은 제직공장의 현장 모니터링 시스템으로서 뿐만 아니라, 현장 직기에 일시적으로 혹은 상존하는 문제점 등을 쉽게 파악하고, 그에 따른 적절한 대응을 가능하게 함으로써, 생산성 향상 및 경비 절감을 위해 유용하게 활용될 수 있다.

• 동의생리병리학회지
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• 제18권2호
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• pp.534-537
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• 2004

We produced twelve monoclonal antibodies(mAbs) against thyroglobulin and characterized the bindig profiles. Among them, three mAbs(TN-1, TN-2 and TN-3) were further characterized their binding specificities. TN-2 had a potent lupus anticoagulant activity and potentiated the anticoagulant effect of venom phospholipase A₂. he anticoagulant mechanism of TN-2 was elongation of the partial thromboplastin time and binding to phosphatidylserine which may have a pivot role in blood coagulation. And TN-2 was cross-reacted with ss-DNA and ds-DNA and had a characteristic of autoantibody. These results suggest that TN-2 may provide a useful tool for studying the correlation between autoimmune thyroiditis and its therapeutic effect.

• 한국항공운항학회지
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• 제19권1호
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• pp.66-73
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• 2011

According to U.S. NTSB, from 1989 to 1992, Situation Awareness(SA) was a major factor causing 80% of all aircraft accidents in scheduled airlines. Therefore, the prevention of accidents through effective training in SA became a pivot in aviation safety. Furthermore, during the past 10 years, since all helicopter accidents in Korea were caused by the factors related to SA, an appropriate countermeasure has been required. This study, which uses survey data, examines various factors related to SA that could affect helicopter pilots. Common characteristics of situation awareness factors are that the result from the independent variables which are flight time, duty period and age of a first officer is statistically significant with the result from the independent variables of an instructor pilot's. However, only experience is statistically significant independent variable for factors influencing decision making in emergency situations, but anxiety, expectation and comprehension are not significant.

• 대한한의학원전학회지
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• 제19권3호
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• pp.314-364
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• 2006

This thesis is a study on the Significance of Pulse in Internal Classic(內經脈義) in the Chapters on Vitality of Pulse(脈神章) in the Complete Works of Zhang Jingyue(景岳全書) Vol. IV. The Complete Works of Zhang Jingyue(景岳全書) is composed of 64 volumes. Maishenzhang, the Chapters on Vitality of Pulse(脈神章) is composed of 3 chapters. The first chapter is the Significance of Pulse in Internal Classic(內經服義). The terminology, Maishen(脈神) means the Vitality of Pulse, which was introduced by Zhang Jingyue to emphasize that the keypoint of sphygmological diagnosis is the vitality of pulse. The Significance of Pulse in Internal Classic(內經脈義) is composed of 20 parts including Buwei(部位), Maidu(脈度), Sanbujiuhou(三部九候), Qizhen(七診), Liujingmaoti(六經脈體), ect. in Miraculous Pivot(靈樞). There are no commentaries in most of them, which is because there are explanatory notes in Leijing(類經). Therefore, I referred to explanatory notes in Leijing(類經) to study the Significance of Pulse in Internal Classic(內經脈義), and make a study as followings.

• 대한한의학원전학회지
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• 제25권4호
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• pp.23-38
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• 2012

Objective : Generally speaking Reverting yin disease pattern(厥陰病) is the last step in cold damage(傷寒). Therefore recognized Yin cold disease(陰寒病) is increasing, and resist action One Yang qi(一陽) began to creep into body. But Ke Qin(柯琴) have a different way of thinking that Reverting yin disease pattern connected with the loss of Liver's function. Liver qi depression(肝鬱) make a ministerial fire(相火), and it make a nutrient and blood insufficiency(營血不足). Method : I will try to describe the Sanghanlun's Reverting yin disease pattern through the Ke-qin's JueyinbingJie(厥陰病解), and I would like to point out that the exact meaning of Reverting yin(厥陰) is connected with Liver's ministerial fire. Result : Ke Qin's JueyinbingJie explained the Reverting yin disease pattern was connected with Liver(肝), and according to Six qi theory(六氣學說) connected with ministerial fire, and according to meridian and Collateral theory(經絡學說) connected with closing referring to inward actions(闔) among the Opening closing and pivot(關闔樞). Conclusion : Ke Qin was recognized that Reverting yin disease pattern have relevance to the loss of Liver's function. In other world, It is connect with soothe the liver and purge fire(疏肝瀉火) and nutrient and blood insufficiency(營血不足).

• 한국지리정보학회지
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• 제6권1호
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• pp.37-47
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• 2003

본 연구에서는 직기를 윈도우 상에서 컴포넌트로 설계한 후, 데이터베이스 연동 및 다양한 질의가 가능한 사용자 인터페이스를 구현하였다. 구현한 시스템은 마우스로 영역을 선택하여 선택된 컴포넌트들에 대해서만 집계 함수를 처리할 수 있는 질의 기능을 갖추고 있으며, 차트, 피벗 테이블 등 고급 집계 질의도 수행 가능하도록 함으로써, 직기 관리를 위한 의사결정 지원시스템의 역할을 수행할 수 있도록 하였다. 제안한 시스템은 현장 직기에 일시적 혹은 상존하는 문제점 등을 쉽게 파악하고, 그에 따른 적절한 대응을 가능하게 함으로써, 제직 관련업체의 생산성 향상 및 경비 절감을 위해 유용하게 활용될 수 있다.

• International Journal of Internet, Broadcasting and Communication
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• 제8권2호
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• pp.75-80
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• 2016

Objectives : The objective of this study is to examine the experiences of Internet game experience targeting to University students in Korea. Research topics was "What is meaning of internet game to the University students?" Methods : Classical phenomenology underpinned this study. Seven qualitative studies of University students were conducted between 20 and 23 years old. Semi-structured interviews were conducted. Interviews were audio recorded and transcribed verbatim. Phenomenological thematic analysis of data was undertaken. Results : The findings pivot around three interconnected themes :[Expectations for the emotional needs], [Spend time in the cyberspace], [Relieve stress throughout the game], [Instead of satisfaction from virtual reality], [Internet gaming repeat and desires]. The basic need for getting into internet game was [satisfaction from virtual reality was identified]. While internet games was eliminated stress, [Expectations for the emotional needs] and [Spend time in the cyberspace] were the catalyst that makes them repeatedly getting into Internet the game. Based on the result, I suggest that Internet gaming should be recognized as a tool to relieve stress for college students, But it is not satisfied with the reality in virtual space. Therefore, the strategy must be to recognize reality accompanying. And Using a lot of time in cyberspace make them cause of internet game addiction. Therefore, it requires a systematic strategy for the Internet using time limits. Also the emotional needs met were motivated to repeat an Internet game. So another way to meet the emotional needs to college students should be sought.

• 대한한의정보학회지
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• 제16권2호
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• pp.1-8
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• 2010

Precious Mirror of Korean Medicine constitutes the basis of Korean orthodox medicine. In Korea it is regarded as the most influential medical work in existence and therefore been accorded first place among the medical works. Many books and reference works referred to Six Viscera and Five Bowels were quoted in Precious Mirror of Korean Medicine This dissertation is to study quoted passages and reference books related to Six Bowels and Five Viscera in Precious Mirror of Korean Medicine Based upon the medical works--Introduction to Medicine, Elementary Questions and Spiritual Pivot of Yellow Emperor's Canon of Internal Medicine, Difficult Classic, Compendium of Medicine and etc.-- all but few references the quotations are clearly traced to their origin. It is hoped that this preliminary study will serve as a starting point for further work on the text, with more specific attention to the method of quotations and its many linguistic problems.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 추계학술대회논문집A
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• pp.477-482
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• 2001

To realize higher track density of HDD, the servo bandwidth should be higher, however, is limited by the mechanical resonances of the arm, coil of the VCM and ball bearing pivot. The dual-stage actuator systems have been suggested as a possible solution. For the dual-stage actuator systems based on the suspension, the suspension resonance frequencies in the radial access direction are important factors to increase a servo bandwidth, however the improvement of these frequencies may affect the shock resistance performance and spring constant. The slider's flying stability can be deteriorated by the change of a vertical stiffness. In this work, we have investigated a suspension design scheme possessing a milliactuator for dual-stage actuator systems and also achieved higher mechanical characteristics. Design parameters are deduced by finite element analysis with sensitivity function. It is confirmed that the proposed suspension with the milliactuator has the capability of fine tracking motion, due to its hinge structure on the spring region, and achieves higher mechanical resonance frequencies in the radial access direction with a high-shock resistance and a low-spring constant.