太谿穴의 臨床 活用에 대한 文獻考察

구성태,송문영,강정묵,김용명,박보라,이은석,홍정아,김경식,손인철 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1

Literally, the mean of Tae-gye is highest brook. And on the basis of the acupuncture theory, Tae-gye point is the Soo earth point and source point of the Kidney Channel as well. In addition, Tae-gye point is one of the Yang-Returning Nine points. We were trying to study bibliographically on the Tae-gye point because Tae-gye point can be used very broadly across the symptoms in the theoretical aspect described above. As a results, we found out that according to the classical books of acupuncture, Tae-gye point is entering point of the Meridian Water as a source point and can be used at both Kidney-Sufficient Syndrom and Kidney-Deficient Syndrom. And Tae-gye can be applied to the disease of kidney or bladder that is urogenital symtoms, Also, Tae-gye is an useful option of tooth-ache, asthma, indigestion, constipation, edema etc whose cause is related with decrease of Kidney ki.

절삭력에 의한 마이크로 엔드밀 변형에 관한 연구

손종인,이학용,손현승,서태일,윤길상 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

Micro end-milling has been becoming an important machining process to manufacture a number of small products such as micro-devices, bio-chips, micro-patterns and so on. Despite the importance of micro end-milling, many related researches have given grand efforts to micro end-milling phenomenon, for example, micro end-milling mechanism, cutting force modeling and machinability. This paper strongly concerned actual problem, micro tool deflection, which causes excessive machining errors on the workpiece. To research this problem, we measured cutting forces in micro end-milling processes. And then we measured about cutting profile for that processes. At last we make a comparison between tool deflection due to cutting force and measurement of cutting profile.

전기도금에 의한 알루미늄의 박막 제조 및 그 특성에 관한 연구

孫太源,趙漢相 弘益大學校 科學技術硏究所 2000 科學技術硏究論文集 Vol.11 No.-

용융탄산염 연료전지(Molten Carbonate Fuel Cell ; MCFC)는 최근 10년간 제 3세대 연료전지로써 활발한 개발 중에 있다. MCFC는 고온에서 작동하므로 반응속도가 빨라 고가의 촉매가 필요 없으며 다량의 폐열회수가 가능하지만, 고온에서 작동되므로 전극재료의 부식문제나 기계적 안정성, 전해질의 관리문제 등의 문제점등이 대두되고 있다. MCFC의 스테인레스강으로 된 분리판의 부식문제 해결은 현재도 많은 관심사가 되고 있다. 특히 wet seal부위에 대한 부식을 방지하기 위하여 주로 스테인레스강에 알루미늄 박막을 코팅하는 기술이 요구되고 있으며, 그 방법으로는 용융도금, Plasma spray, PVD, DVD, 전기도금 등이 있다. 이 방법들 중 용융염 전기도금의 경우, 적절한 알루미늄의 전기도금을 위해 알맞은 전해질을 선택하는 것이 중요하다. 본 연구에서는 aluminum-chloride-alkali melt 전해질과 유기용매를 제조하여 각 전해질의 전기화학적 특성에 대해 실험을 하였다. 선형전류전압법을 사용하여 알루미늄 환원 기작을 연구하였고 용융염 전해질에서 stainless steel으로 알루미늄의 확산계수가 D_(0)=2.98×10^(-10) ㎠/sec, 유기용매 전해질에서 D_(0)=6.41×10^(-9) ㎠/sec 임을 알수 있었다. 또한 10mA/㎠의 전류 밀도로 전기도금을 시행한 결과 알루미늄 도금층을 확인할 수 있었다. The molten carbonate fuel cell(MCFC) has been under intensive development during the last decade as second generation fuel cell. It has high reaction rate, need not expensive catalyst and, can recover heat of large quantity. But high operating temperature results in many troubles such as corrosion of electrode material, maintenance of electrolytes, etc. Corrosion of wet seal area that made of stainless steel is very important. For the corrosion protection of wet seal area, techniques that coating stainless steel with aluminum film are required. These coating techniques are molten plating, plasma spray, physical vapor deposition, chemical vapor deposition and electrodeposition(electroplating), etc. In case of molten salt electroplating among these techniques, suitable electrolyte is selected for pertinent electroplating of aluminum. In this study, we prepared aluminum chloride-alkali chloride melt electrolyte and organic electrolyte. We proceeded to experiment using them for electrochemical characterist of each electrolyte. A detail study of the aluminum reduction mechanism was carried out using the electrochemical methods of linear sweep voltammetry. The solid state diffusion coefficient of aluminum into the stainless steel was evaluated and found to be D_(0)=2.98 x 10^(-10) ㎠/sec in molten salt electrolyte and D_(0)=6.41 x 10^(-9) ㎠/sec in organic electrolyte. In addition, electroplating reaction using galvanostatic method progressed toward cathodic direction(10 mA/㎠) and aluminum plating layer was observed.

RuxIr₁xO₂/Ti mesh 촉매전극에 의한 페놀의 전기화학적 산화특성에 관한 연구

孫太源,李相雄 弘益大學校 科學基術硏究所 1999 科學技術硏究論文集 Vol.10 No.2

One of the best ways of turning the characteristics of aromatic compounds the major anti-degradable compounds, into the one of bio-degradable is electrochemical oxidation. Among the aromatic compounds chlorine group on phenol has been chosen and the probabilities of electrochemical oxidation was researched by measuring Cyclic voltammogram(CV) and Tafel polarization curve for RUx.rxO₂/Ti mesh catalytic electrode. The value of HPP using Ru/Ir 7:3 electrode was smaller and i?? was larges than using Ru/Ir 3:7 electrode. Ru/Ir 7:3 electrode was better than Ru/Ir 3:7 electrode on the electrochemical oxidation of phenol.

觸媒粒子 內에서 細孔擴散이 選擇度에 미치는 影響

孫太源,廉聖培 弘益大學校 1983 弘大論叢 Vol.15 No.2

The in fluence of pore diffusion on the yield and selectivity has been studied for a chemical reaction occuring in a catalyst particle. When a consecutive reaction (A???→R???→S) proceeds, mathematical formulation is performed by introducing Wheeler's classical work. Also the variation of the yield of intermediate product R due to conversion of reactant A was considered incase of plug flow reactor. By computations, favorable conditions to increase yield of desired product R with various values of parameters were obtained. The present results show that it is favorable when the reaction rate constant k₁is larger than k₂. And as a whole, the values of lower Thiele modulus for a nonporous catalyst and of higher effective diffusivity ratio tend to increase the yield of intermediate product.

통조림罐의 內面腐蝕에 미치는 有機酸의 影響

孫泰華,崔鍾旭,權榮澤,金聲達 경북대학교 1981 새마을 硏究論叢 Vol.1 No.-

This experiment was carried out to research the effect of kinds and concentration of organic acid food component on the internal can corrosion, stored at room temperature (25℃) and low temperature (0℃). The criterion for the degree of the internal can corrosion was tin contents in the pure acid solution. The result of this research can be summarized as followes. The intension which effect the rate of the tin dissolution was furmaric>malic>citric, were respectively. The rate of the dissolution were increased rapidly at 30days after treatment, and the higher concentration of malic acid, the more dissolved of tin from the can body. The amounts of tin dissolved from can body at room temperature were slightly stronger than low temperature.

일개 대학병원에서 치료중인 만성질환자의 금연,절주 및 운동 실천 정도

손혜숙,전진호,이종태,정귀원,김성준,엄상화,유병철 韓國保健敎育.健康增進學會 2001 보건교육건강증진학회지 Vol.18 No.3

Background: Many chronic diseases are associated with the lifestyle such as smoking, alcohol drinking and exercise. Attention is increasingly paid on the effect of exercise for the management of chronic disease these days. Objective: The purpose of this study was to evaluate the status of the smoking habit, alcohol drinking and physical exercise of the patients with chronic diseases. Methods: Total 793 persons(normal:422, chronic disease patients:371) in a hospital were questioned regarding the habits of smoking and alcohol drinking, and a practice of physical exercise in 1999. The patients with chronic illness were divided into three groups(Group I included the patients of hypertension and diabetes mellitus. Group II includes respiratory disease and cancer. Group III included liver disease ). The rate of exercise, the rate of smoking cessation and the rate of abstinence were assessed. In logistic regression analysis with each independent variables in each disease groups(I, II and III), odds ratio for the presence of disease was controlled for age and education. Results: The rate of exercise, the rate of smoking cessation and the rate of abstinence was 31.5%, 27.3% and 9.5% in the patients with chronic disease, respectively. In control group, those were 31.5%, 21% and 2.1%, respectively. In logistic regression analysis with exercise as independent variable, odds ratios(95% CI) for age and education were significantly high, with smoking cessation, odds ratio for age was high and with abstinence, odds ratio for disease was high in all disease groups. Conclusion : It was suggested that an effort for proper changes of lifestyle related to disease such as smoking, alcohol drinking and exercise should be intervened in the patients with chronic diseases.

양이온의 층간 반응에 의한 텅스텐 산화막과 전해질 계면에서의 전기화학적 특성에 관한 수치해석

孫太源,趙成鎭 弘益大學校 科學技術硏究所 1998 科學技術硏究論文集 Vol.9 No.2

In this study, optical density for tungsten oxide film is investigated by equation of diffusion derived for cation diffusion into film. Current is calculated for one case; reversible case that reaction rate is very fast. Dimensionless parameter ξ, ratio of diffusion coefficient in electrolyte and inside of film, and ζ, include exchange current density, are defined. Optical density is calculated with distribution of cation concentration that is calculated for dimensionless parameters in film. In reversible case, concentration of interfacial of electrolyte and film is very high and it takes long time to distribute uniformly. Change of optical density is great for change of diffusion coefficient.

한국어 명칭말하기 검사 개발과 타당도 및 신뢰도 평가

김태유,김상윤,최성혜,양동원,김재우,손정은,임병훈,인연권 대한치매학회 2004 Dementia and Neurocognitive Disorders Vol.3 No.2

Background: Confrontational naming test is useful in evaluating the language function. It reveals memory and cognitive processing dysfunctions in many neurologic diseases including dementia. Although the Korean version of the Boston Naming Test (K-BNT) has been a popular and useful test, it takes much time and effort in dementia patients of moderate to severe stage of disease or in elderly individual with low educational level. So we developed the Korean Naming Test (KNT). Methods: KNT consists of relatively easy 40 items. Each item was familar materials around us and simplified figures with black thick line. Ninety two of probable Alzheimer's patients received the Korean version of Mini-Mental State Examination (K-MMSE), the Korean version of expanded Clinical Dementia Rating Scale (CDR), K-BNT and KNT. We tested reliability and validity of KNT and also evaluated scores of the KNT along with CDR. Results: The KNT correlated with K-BNT [0.75(p;0.01)], CDR [-0.49(p;0.01)], K-MMSE [0.55(p;0.01)]. The internal consistency was 0.91 (Cronbach's alpha). The KNT score decreased as the disease progressed. Conclusions: The KNT is a brief and good test for evaluating language function of moderate to severe dementia patients with low educational level. Also it is sensitive to mild stage of disease and has a excellent reliability and validity.

알코올성 치매의 신경심리학적 소견

김태유,김지원,김상윤,김준모,이동기,연권인,김민정,이은아,손정은 대한노인병학회 2004 대한노인병학회지 Vol.8 No.1