한의진단명과 진단요건의 표준화 연구 III : 3차년도 연구결과 보고

최선미,양기상,최승훈,박경모,박종현,심범상,김성우,노석선,이인선,정진홍,이진용,김달래,임형호,김윤범,박성식,송태원,김종우,이승기,최윤정,신순식 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the third year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : - analyzing and differentiating of epidemic febrile disease - analyzing and differentiating in accordance with the Sasang constitution medicine based on four-type recognition - differentiation of disease according to pathological changes of Chong and Ren channels - standards for diagnosis of women's disease - standards for diagnosis of children's disease - standards for diagnosis of motor and sensor disturbance (-muscle. born, joint, etc.) - standards for diagnosis of neuropsychiatric disease - standards for diagnosis of five sense organ disease - standards for diagnosis of external disease The indivisual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name, notion of diagnosis pattern, index of differentiation of symptoms and signs, the main point of diagnosis, analysis of diagnosis pattern, discrimination of diagnosis pattern, prognosis, a way of curing a disease, prescription, herbs in common use, disease appearing the diagnosis pattern, documents. The standards for diagnosis of each disease was arranged by the diagnostic requirements in the following order : another name, notion of disease, the main point of diagnosis, analyzing and differentiating of disease, analysis of disease, discrimination of disease, prognosis, a way of curing and prescription of disease, disease in western medicine appearing the disease in oriental medicine, documents.

한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고

양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

고속 HMC 이송계의 운동특성 평가 및 운동오차 예측

최헌종,허남환,강은구,이석우,홍원표 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

Recently, the evolution in production techniques (e.g. high-speed milling) and the complex shapes involved in modern production design has been increasingly popular. The key to the achievement is a drastic improvement of the dynamic behavior of the machine tool axes used in production machinery. The more complex these tool paths the higher the speed and acceleration requirements. But it is very difficult to reach the target for high speed machine tool because of the limitations of servo system and motion control system. However the direct drive design of machine tool axes, which is based on linear motors and which recently appeared on the market, is a viable candidate to meet the ever increasing demands, because of these advantages such as no backlash, less friction, more mechanical simplicity and very higher acceleration and velocity comparing to the traditional system. This paper focused on the performance tests of the high speed horizontal machine tool based on linear motor. Especially, dynamic characteristics were investigated through circular test and circular form machining test is carried out considering many important parameter. Therefore these several experiments is used to be evaluated the model for prediction of circular motion error and circular machined error.

전산유체해석을 이용한 자동차용 AQS 시스템의 유로구조 설계

최종필,김병희,최우석,김시동,민준원,유승을 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

In recent years, concern among car users about air quality inside car cabins has been steadily increasing. A vehicle exhaust gases such as carbon monoxide(CO) and nitrogen oxides(NOx) entering the cabin not only reduce the quality of experience for everyone in the car, but are also harmful to the health. Therefore, an air quality sensor(AQS) system which can perform this function is issued. In this paper, the design of channel structure for automotive AQS system was studied by computational fluid dynamic analysis according to the design parameters such as the number of air inlet, membrane porosity and permeability. Form simulation results, the AQS system was developed and the performance test was conducted.

初唐 沈佺期·宋之間 詩歌의 내용 고찰

崔宇錫 中國語文硏究會 2003 中國語文論叢 Vol.25 No.-

沈佺期、宋之問是初唐後期之兩位優秀詩人,一般幷稱爲'沈、宋'。歷來,沈、宋一直以"硏練精切, 穩順聲勢"之"律詩"著稱於世. 換言之., 人們往往只肯定他們在詩歌格律形式方面之貢獻,而對其詩歌創作內容,却俱有不同程度上'忽略'的傾向。甚至有的人將他們只看做宮廷的應制詩人。然而,實際上這충做法是有欠公允的。雖然他們創作了不少應制詩,而且,其應制詩代表着初唐同類詩歌的最高成就,不過,其應制詩却在沈、宋全部詩歌創作中所占的比重幷不大, 決不超越於他們全部詩作的四分之一。其實,在他們詩歌當中所占的比重最大的就是'述懷言志類'。尤其,在貶逐時期集中地創作的逐客추창、恨別怨離、觸景生情、或寄托老佛求得解脫等之作,乃爲其最主要的內容。應値得注意的是,他們大量創作了抒情色彩濃郁的作品,由此,在一定程度上恢復了初唐詩壇上缺乏的'詩緣情'傳統。至於山水自然之作,他們采取精煉的詩歌語言,就能做到了客觀事物描寫與主觀情性抒發的高度和諧統一,形成情景交融,渾然天成。可以說,계承六朝以來的中國山水詩歌的傳統而爲盛唐山水詩派的先河。此外,他們的邊塞詩歌也在一定程度上爲盛唐邊塞詩派形成起了良好的作用。總之,他們的詩歌包含着多樣、豊富的內容。這些都爲盛唐詩的繁榮起了흔大的推動作用。

가막만 패류양식장의 수질 및 저질특성

최철웅,문성용,윤호섭,라성주,한종석,최상덕,이우범 國立 麗水大學校 環境問題硏究所 2002 環境硏究論文集 Vol.5 No.-

This study was performed to characterize the seasonal fluctuation of water quality and sediment environment from April, 2001 to November, 2001 in Gamak bay. Which was a productive area, but recently its fisheries conditional have been deteriorated because of increasing waste-water from municipal area, industry and autochthonous pollution by farm industry. In the survey of seawater quality, DO and COD concentrations were lowest in bottom layer at summer, but DIN and DIP contents were higher than those in surface layer. Eutrophication indices mean that eutrophication area move from south to north entrance via northern-west inner area with seasonal change from summer to autumn. In the survey of sediment environment, ignition loss(IL), chemical oxygen demand(COD), DIN and Dip were in the range of 3.8~15.7%, 10.3~60.6mg/g-dry, 5.053~1.810mg/ℓ and 0.065~0.324mg/ℓ , respectively. COD in sediment were highest at winter and spring. And, they were higher than sediment standard in the south inner area, which mean heavily polluted conditions with organic constituents.

능동 클램프 ZVS 플라이백 컨버터의 역률개선에 관한 연구

최태영,류동균,이우석,안정준,원충연,김수석 성균관대학교 2002 학술회의지원논문목록집 Vol.2002 No.-

본 논문에서는 single-stage, two-stage 두가지 역률보상(PFC)기법을 기존의 능동 클램프 플라이백 컨버터에 적용하여 역률 개선을 하였다. 삽입된 플라이백 컨버터의 능동클램프회로가 주스위치와 보조스위치의 영전압스위칭(ZVS)을 구현하며, 스위칭 손실을 줄임으로써 고효율을 얻을 수 있고, 높은 주파수에서의 스위칭이 가능하다. 하지만 일반적으로 사용되는 다이오드정류기, 평활용커패시터에 의한 낮은 역률의 문제점이 남아있다. 본 논문에서는 300W급 능동 클램프ZVS플라이백 컨버터를 설계하여 single-stage, two-stage방식을 적용, 입력역률개선을 시뮬레이션과 실험에 의해 입증하고자 한다. This paper analyzed PFC of active clamp ZVS flyback converter by adding two method PFC (Power Factor Correction) circuit - two-stage and single-stage. The addition of active clamp circuit also provide a mechanism for achieving ZVS of both the primary and auxiliary switches. ZVS also limits the turn off di/dt of the output rectifier, reducing rectifier switching loss and switching noise, due to diode reverse recovery. As a results, the proposed converters have characteristics of the reduced switching noise and high efficiency in comparison to conventional flyback converter. The simulation and experimental results show that the proposed converters improve the input PF of 300W ZVS flyback converter by adding single-stage, two-stage PFC circuit.

동적하중의 정적하중으로의 수학적 변환

최우석,박경진 漢陽大學校 工學技術硏究所 1998 工學技術論文集 Vol.7 No.1

실제로 구조물에 작용하는 하중은 동하중이다. 그러나 동하중을 그대로 처리하는 것은 매우 고가이기 때문에 해석 및 설계 시 동적계수 등에 의해 변환된 정하중이 사용된다. 동적계수는 일반적으로 경험 등에 의해 결정된다. 따라서 구조물의 어떤 부분은 이러한 정하중하에서 적절치 못하게 설계될 수 있다. 이러한 방법들은 신뢰성이 다소 떨어지고 설계 시 해석의 정확성에 의문을 제기할 수 있다. 본 논문에서는 동하중을 정하중으로 변환하는 해석적 방법을 제안한다. 변환과정은 수학적으로 유도되었다 아울러 개발한 방법의 응용성을 논의하는 과정에서 이 결과가 구조최적설계과정에 어떻게 사용될지를 제시한다. All the forces in the real world act dynamically on structures. Since dynamic loads are extremely difficult to handle in analysis and design, static loads are utilized with dynamic factors. Dynamic factors are generally determined from experiences. Therefore, structural engineers often come up with unreliable solutions. An analytical method is proposed for the transformation of dynamic loads into equivalent static loads. The process is derived and evaluated mathematically. Applicabilities of the method to structural optimization are discussed.

FIB를 이용한 나노가공공정 기술 개발

최헌종,강은구,이석우,홍원표 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-

The application of focused ion beam (FIB) technology in micro/nano machining has become increasingly popular. Its use in micro/nano machining has advantages over contemporary photolithography or other micro/nano machining technologies, such as small feature resolution, the ability to process without masks and being accommodating for a variety of materials and geometries. This paper presents that the recent development and our research goals in FIB nano machining technology are given. The emphasis will be on direct milling, or chemical vapor deposition techniques (CVD), and this can distinguish the FIB technology from the contemporary photolithography process and provide a vital alternative to it. After an introduction to the technology and its FIB principles, the recent developments in using milling or deposition techniques for making various high-quality devices and high-precision components at the micro/nano meter scale are examined and discussed. Finally, conclusions are presented to summarize the recent work and to suggest the areas for improving the FIB milling technology and for studying our future research.

연산증폭기를 이용한 아날로그 승산기/제산기 설계

崔碩佑,金東龍 全北大學校 1994 論文集 Vol.37 No.-

The most widely used nonlinear analog cells are multipliers and dividers. Four-quadrant multipliers have been reported by using variable-transconductance and quarter-square approaches. But they are not reconfigurable to achieve different function such as divider. In this paper, analog four-quadrant multiplier/divider is proposed using operational amplifier and V-Ⅰ converters. The designed multiplier/divider circuits can be reconfigurable in order to perform the different function. The multiplier linear ranges are between -2V and +2V, and nonlinear error is measured 0.87% by SPICE simulation.