학교체육 활성화 방안에 대한 연구(Ⅰ) : 강원대학교 교양체육 운영방법의 개선을 중심으로

이광재,문병용,노성규,박기동,홍관이,한상준,유옥재,엄기진,정청자,오수일,김윤래,박장평,부기원 江原大學校附設 體育科學硏究所 1986 江原大學校附設體育科學硏究所論文集 Vol.- No.11

Try to find a scheme for activation to College Physical Education, this Report informs the various kinds of Survey and process those were projected for improvement of management methods on Cultural Physical Education in Kang Weon National University. From experimentally carried out "Sports events Choosing System" not as usual be inforced "Total practical Skill System", Following Positive effects and sujestions were Presented; 1. "Sports events choosing system" gave birth to more students' interesting and more voluntary participation to the sports events they chose, and sports skill and instruction level was elevated due to charge of expert according to each sports events. This system would be managed continuously hereafter for it related to life sports. 2. This System needs to closed cooperations between College and Community, for the facilities of community are utilized by college. 3. To complete the plan for activation of college Physical Education, additionally, the successional study ; namely "autonomous extracurricular sports activity" should be excuted hereafter.

퍼망간네이트-옥살산에 의한 아크릴아마이드 수용성중합에서의 첨가제 효과

이채주,이종광 慶尙大學校 1986 論文集 Vol.25 No.2

The polymerization of Acrylamide initiated by MnO4-H2C2O4 redox pair has been studied in aqueous media at 35±0.2℃ in nitrogen armosphere. The rate of polymerization is independent of activator concentration (2×10-3 to 4.5×10-3 mole/1) expect at very high (above 6.3×10-3 mole/1) concentration. The initial rate of polymerization has been found to be proportional to nearly 1.17 power of low catalyst concentration (2.3×10-4 to 6.25×10-4 mole/1) and nearly the first power of low monomer concentration (1.47×10-3 to 3.3×10-3 mole/1). The overall energy of activation has been found to be 10.99kcal/mole within the temperature range 30-50℃. The effects of various additives have been studied. Organic solvents and salts depress the initial rate but small amounts of manganous salts(MnSO4, MnCl2) increase the initial rate to a considerable extent. A complexing agent(NaF) and anionic and cationic surfactants show marked influence on the rate of polymerization. The intrinsic viscosity in aqueous acrylamide solution at 30±0.1℃ was 1.01 and the molecular weight of the polyacrylamide was 63,900.

가족성 팔목터널 증후군 1가족례

이명종,김광국,이상암,마효일,윤준오 울산대학교 의과대학 1993 울산의대학술지 Vol.2 No.1

This is a report of familial carpal tunnel syndrome(CTS) occuring in four members of two generations of a Korean family. One of those with CTS had surgical release and its pathologic finding was nonspecific fibrotic change. The age of those affected by CTS ranged form 35 to 76 years of age. Family pedigree suggests an autosomal dominant gene. This is belived to be the first case report of familial carpal tunnel syndrome in Korea.

자기동조 PID제어기에 의한 전력계통 안정화에 관한 연구

정형환,김상효,이광우 東亞大學校 大學院 1994 大學院論文集 Vol.19 No.-

A new technique for the exitation control of synchronous generator is presented in this paper. The proposed technique employs a self-tuning proportional-integral-derivative(PID) power system stabilizer in order to improve the dynamic performance of a synchronous machine. The self-tuning-regulator(STR) PID using recursive-least-squares(RLS) estimated K? K?, K? Gains. A application voltage control of power system terminal voltage deviation, angular velocity deviation, and rotor angle deviation considered dynamic. Simulation results establishment that proposed STR PID control technique superiorited conventional PSS(power system stabilizer) control.

마이크로 엔드밀링 공정의 절삭계수 모델링 및 최적 공정 설계

이광조,정성종 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

Micro end-milling process is applied to fabricate precision mechanical parts cost-effectively. It is a complex and time-consuming job to select optimal cutting conditions with high productivity and quality. To consider the productivity and quality of precision mechanical parts, micro end-mill wear and cutting force characteristics should be studied exactly. In this paper, high speed machining experiments are studied for optimum process design and modeling of cutting parameters in micro ball end-milling processes. Cutting force and wear characteristics under various cutting conditions are investigated through the condition monitoring system and Taguchi method. Mathematical models for the cutting forces are derived from the response surface method. Optimal milling database has been constructed through experimental models.

퍼망간네이트-옥살산 Redox System에 의한 메타크릴산의 수용성 중합

이종광 慶尙大學校 기초과학연구소 1986 基礎科學硏究所報 Vol.2 No.-

The polymerization of methacrylic acid initiated by permanganate-oxalic acid redox system has been studied in aqueous media at 30±0.2℃ in nitrogen atmosphere. The initial rate of polymerization has been found to be proportional to nearly the first power of low catalyst concentration and 0.24 power of high concontration. The initial rate increases to the increase of monomer concentration, but decreases with the increase of activator concentration. The overall energy of activation has been found to be about 8.7 ㎉/mol within the temperature range 25-45℃. Organic solvents and salts decrease the rate of polymerization but MnSO_4 increases the initial rate. The intrinsic viscosity measured in 0.002 N hydrochloric acid at 30±0.1℃ was 1.41 and weight-average molecular weight was 105,000.

交流一直流 電力系統의 효과적인 潮流計算을 위한 새로운 方法

정동일,이광우,정형환 東亞大學校 海洋資源硏究所 1993 硏究論文集 Vol.6 No.1

The new method results from a further simplipication of the unified methods. The a. c. systme equations are solved with the d. c. system modelled simple as a real and reactive power injection at the appropriate ferm busbar. For d. c. solution the a. c. system is modelled simply as a constant voltage at the Converter a. c. terminal busbar.

肝組織에서의 Glucagon의 Cholesterol合成 抑制機轉에 對한 硏究

李根培,車鐘希,朴悅,高光三 朝鮮大學校 附設 醫學硏究所 1983 The Medical Journal of Chosun University Vol.8 No.1

The inhibitory mechanism of glucagon on hepatic cholesterol biosynthesis in rat was studied by the measurement of incorporation of tritium from ^(3)H₂O into cholesterol, and intermediary metabolite of lipids. But the rate of cholesterol synthesis was not affected. The hepatic acetyl-CoA carboxylase activity and malonyl-CoA concentration were decreased to 25~35% of control value during the same period after glucagon injection. These data indicates that one site of action of glucagon in regulating fat biosynthesis is at the acetyl-CoA carboxylase reaction.

퍼망간네이트-옥살산의 Redox System에 의해 개시된 메틸 메타크릴레이트의 수용성 중합

李鍾光,鄭板石 慶尙大學校 기초과학연구소 1985 基礎科學硏究所報 Vol.1 No.-

MnO_4^--(COOH)_2 redox system에 의해 개시된 methyl methacrylate의 중합을 질소 분위기에서 35±0.2℃의 aqueous media내에서 연구하였다. 중합속도는 낮은 활성제 농도(2.0×10^-3-7.5×10^-3M)에는 무관하지만 그 이상의 높은 농도에서는 속도가 감소함을 알 수 있었다. 중합의 개시속도는 낮은 촉매농도(0.5×10^-5-2.0×10^-5M)에서는 반응차수가 1차이었으며 높은 촉매 농도(4.0×10^-5-3.2×10^-4M)에서는 대략 0.5차 임을 알았다. 또한 개시속도는 낮은 단량체 농도(2.0×10^-2-10.4×10^-2M)에서는 비례하여 증가하나 10.4×10^-2M농도 이상에서는 오히려 감소하였다. 온도가 30∼45℃ 범위 내에서는 온도가 상승함에 따라 개시속도는 증가하지만 최대 중합율은 감소하였고, 25∼45℃의 온도 범위에서 총괄 활성화 에너지는 8.2Kcal/mole임을 알았다. 유기용매인 알콜과 Salts의 첨가는 중합속도를 감소시켰으나 MnSO_4는 개시속도를 증가시키는 반면에 EDTA는 최대 중합율을 상당히 증가시켰다. 그리고 FeCl_3·6H_2O와 CuCi_2·2H_2O는 중합 억제력이 아주 크다는 것을 알 수 있었다. The polymerization of methyl methacrylate initiated by permanganate-oxalic acid redox pair has been studied in aqueous media at 35±0.2℃ in nitrogen atmosphere. The rate of polymerization is independent of activator concentration (2.0×10^-3 to 7.5×10^-3M), but the further increase of the concentration decrease the rate. The initial rate of polymerization has been found to be proportional to nearly the first power of low catalyst concentration (0.5×10^-5 to 2.0×10^-5M) and 0.55 power of high catalyst concentration (4.0×10^-5 to 3.2×10^-4M). The initial rate increases linearly at low monomer concentration (2.0×10^-2 to 10.4×10^-2M) but decreases at higher monomer concentration (above 10.4×10^-2M). The initial rate increases as the temprature increases from 30℃ to 45℃, while the maximum conversion decreases. The overall energy of activation has been found to be about 8.2 Kcal/mole within the temperature range 25-45℃. Organic solvent (alcohols) and salt (KCI) decrease the rate of polymerization but MnSO_5 increases the initial rate and complexing agent EDTA increases the maximum conversion to a considerable extent. FeCl_3·6H_2O and CuCi_2·2H_2O have been found to be polymerization retarders.

전력계통의 안정화를 위한 퍼지제어의 적용

정형환,주석민,이광민 東亞大學校 大學院 1994 大學院論文集 Vol.19 No.-

This paper proposed a regulation technique of scale factors on fuzzy controller for power system stabilization. These scale factors are regulated by a given exponential function with performance index variables. Simulation results showed that the proposrd fuzzy control technique was more powerful than conventional ones in faces of usefulness and robustness.