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老化過程의 흰쥐에서 補肺散이 肺의 代謝酵素系에 미치는 影響
金仁洙,高光贊,吳旼錫,宋泰元 대전대학교 韓醫學연구소 1999 한의학연구소 논문집 Vol.8 No.1
Through observing effect of BOPEASAN(BPT) on an aging white rat's metabolic enzyme system, the following conclusions were addressed 1. The quantity of the lipid peroxide in lung of was decreased meaningfully in all of experimental subject groups, relatively to counterpart groups. 2. Cytochrome P-450, Cytochrome b5, NADPH-Cytochrome P45, was decreased meaningfully in the experimental subject groups B,C and D. 3. superoxide dismutase, catarase, grutathione peroxidase, was increased meaningfully in the experimental subject groups B,C and D. 4. glutathione, glutathione S-transferase, glutathione redutase, γ-Glutamylcytein synthetase, had no meaningful change in the experimental subject groups. Regarding the above conclusions, the Bopeasan was affecting positively on both lipid peroxide and the enzyme system, as well as it has efficacy of suppressing the phenomena of aging, Therefore, the Bopeasan is, hereafter, expected to be applied clinically.
경상분지 남서부 진교-사천 지역 전기백악기 퇴적암에 대한 고자기 연구
김인수,강희철,이현구 부산대학교 기초과학연구소 1994 부산대학교 기초과학연구소 연구논문집 Vol.14 No.-
A total of 264 independently oriented core samples were collected from 26 sites in the southwestern part(the Naktong Trough) of the Cretaceous Kyongsang Basin in south Korea. The sampled formations comprise the sedimentary Shindong and the Hayang Groups of the Lower Cretaceous age. alternating field and thermal demagnetizations were conducted. Chrarcteristic remanent magnetization(ChRM) was relatively easily isolated in each formation except in the Chinju foramation, from which only remagnetization circles were observed. Even though an extensive use of the fold test was not possible due to the nearly homoclinal nature of the strata in the area, we believe that the ChRM of each formation is of primary origin based on the following grounds : The in-situ ChRM direction of each formation is different from the present geomagnetic field direction. Fisherian precision parameter becomes enhanced through the tilt correction in all formations, closely to the values, requird for a positive fold test. Three out of the five studied formations pass the reversal test. The mean palaeomgnetic pole position from the studied area is found to be statistically different from the contemporary pole from the Chinese block exclusive of the Shandong area. The difference in magnetic declination suggests a 14.5°(±10.5°) clockwise rotation from the studied area relative to the Chinese block comprising the west of the Tan-Lu fault. On the other hand, any significant difference in magnetic inclination and concurrent palaeolatitude is not obaseved between the studied area and China as well as the other area (Taegu-Andong area) in the Kyongsang Basin. The dual nature of the magnetic polarity confirmed in all formations suggests an older than 124Ma(Neocomian or older) age of the studied sedimentary strata.
기계체조수업에서 인지적 운동능력과 성장마인드, 흥미, 끈기 요인이 운동수행 성/패에 미치는 영향
김인수 한국체육교육학회 2023 한국체육교육학회지 Vol.28 No.1
Purpose: The purpose of this study is to analyze the effects of cognitive athletic ability, interest, growth mindset, and tenacity on success/failure of the performance in gymnastics classes Methods: This study was conducted on 269 second-year students of G Education University (female: 100, female:169) who participated in mechanical gymnastics classes in the first and second semesters of the 2022 school year by cluster sampling. This study measured cognitive athletic ability, interest, growth mindset, tenacity, and success/failure on tasks. This study conducted confirmatory factor analysis, Two-way ANOVA, correlation analysis, and binary logistic regression analysis for variables. Results: First, as a result of the descriptive analysis, it was found that male students were higher than female students and the success group than the failure group in cognitive athletic ability, but there was no difference between groups in interest and tenacity. Second, as a result of analyzing the effects of cognitive athletic ability, interest, growth mind, and tenacity on task performance, growth mind has 2.04 times effect on task performance success when other variables are controlled, and cognitive athletic ability has 1.46 times effect, but interest and persistence have no effect. Conclusion: It suggests that in order to expand learners' success in gymnastics classes, feedback is needed to increase learners' growth minds and improve cognitive motor skills. 목적: 기계체조수업에서 학습자의 인지적 운동능력, 흥미, 성장마인드와 끈기가 운동과제수행의 성/패에 미치는 영향을 분석하고자 하였다. 방법: 연구자는 의도적 군집표집법으로 2022학년도 1학기와 2학기 기계체조수업에 참여한 G대학교 2학년재학생 중 연구 참여에 동의한 학생 총269명(남:100, 여:169)을 연구 대상자로 선정하였다. 연구자는 이들을대상으로 인지적 운동능력, 흥미, 성장마인드, 끈기, 과제에 대한 성/패를 측정하여 변량분석, 상관분석 및 이분형 로지스틱회귀분석을 실시하였다. 결과: 첫째, 기술분석을 실시한 결과 인지적 운동능력에서 남학생이 여학생에 비해, 성공집단이 실패집단에비해 높은 것으로 나타났으나 흥미와 끈기에서는 집단 간 차이가 없었다. 둘째, 인지적 운동능력, 성장마인드, 흥미, 끈기가 과제수행의 성/패에 미치는 영향을 분석한 결과 다른 변인을 통제 했을 때 성장마인드는과제수행 성공에 2.04배 영향을 미치는 것으로, 인지적 운동능력이 1.46배 영향을 미치는 것으로 나타났으나흥미와 끈기는 영향을 미치지 않는 것으로 나타났다. 결론: 기계체조수업에서 학습자의 성공을 확대하기 위해서는 학습자의 성장마인드를 높이고, 인지적 운동능력을 향상시킬 수 있는 피드백이 필요함을 시사해 주고 있다.
분산전원의 고장 전류와 고장 전압 대한 영향 연구: 증명과 사례 제시
김인수 대한전기학회 2022 전기학회논문지 Vol.71 No.12
Distributed generation (DG) resources defined as small, medium, or large grid-connected or stand-alone electric energy sources can show many advantages such as improving reliability (e.g., decreasing the failure frequency and duration), the emergency supply of power (e.g., islanding operation), or peak power reductions (e.g., peak demand reduction at peak hours). However, these DG resources are in nature an electric energy source, so they can affect the short-circuit current of the system to which they are connected. Thus, the objective of this study is to present several case studies on the effect of DG on a change in short-circuit current and voltage. For this purpose, Part 1 presented a method of accurately calculating short-circuit current caused by DG working as a current source, which was defined as the current injection method. As an extended study, Part 2 of this study presents an example of calculating short-circuit current and voltage in detail. As a result of case studies, this study verifies the proposed method and examines the effect of DG on short-circuit current and voltage after a single line-to-ground fault. The case studies show that as the capacity of DG increases, DG can also increase the short-circuit current, but with a slight change rate (e.g., up to 17.44% in the simple 5-bus power system), and DG may cause a slight overvoltage problem during or after the fault.