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      • 제주 우수 육상경기 선수들의 년중 훈련효과 분석 및 처방

        김철원,임상용,김승곤,오만원,김성찬,이창준,남사웅,이세형,류재청 濟州大學敎 體育科學硏究所 1996 체육과학연구 Vol.2 No.-

        The study was undertaken to analysis, evaluate, and prescribe t h e annual effect of training of periodically anaerobic and aerobic motor ability for Che-Ju representive team of elementary, middle and high school athletes. first. the performance can be obtained when it was prescribed proper training after analysis of physical fitness by each events. second, individually fitness. scientific analysis. prescription. proper management of athlete will be necessary to apply. In addition to physiology aspect, it is essential to consider sport biomechanics. sport psychology when we prescribe specific events and necessary approach in demension coach-athlete-researcher for individual.

      • 제주 우수 수영 선수들의 년중 훈련효과 분석 및 처방

        김철원,임상용,김승곤,오만원,김성찬,이창준,남사웅,이세형,류재청 濟州大學敎 體育科學硏究所 1996 체육과학연구 Vol.2 No.-

        The study was undertaken to analysis, evaluate, and prescribe the annual effect of training of periodically anaerobic and erobic motor ability for Che-Ju representive team of elementary, middle and high school athletes, first the performance can be obtained when it was prescribed proper training after analysis of physical fitness by each events, second individually fitness scientific analysis. prescription. proper management of athlete will be necessary to apply.

      • SiH_4 기체 방전 파라미터 해석

        이형윤,하성철,유회영,김상남,임상원,문기석 동국대학교 산업기술연구원 1997 산업기술논문집 Vol.9 No.-

        This paper describes the discharge parameters in SiH_4 gas calculated for the range of E/N values from 0.5~300(Td) by the Monte Calro simulation and Boltzmann equation method using a set of electron collision cross sections determined by the authors and the values of the discharge parameters are obtained for the TOF method. The theoretical results of the discharge parameter such as the electron drift velocity, characteristic energy agree with the experimental values for the range of E/N. The electron energy distributions function were analyzed in monosilane at the E/N : 30, 50(Td) for a case of equilibrium region in the mean electron energy. The validity of the results obtained has been confirmed by the TOF method.

      • 韓藥을 利用한 抗癌 實驗硏究의 傾向에 關한 考察

        金賢兒,林成祐,李源哲 대한한방종양학회 1998 대한한방종양학회지 Vol.4 No.1

        Because there were lots of side effects and tolerances to the existing anticancer therapeutics, the experiment extraction the anticancer effct from medicinal herbs is in progress lively. Therefore the purpose of this study were to research the tendency and the course of anticancer studies. To research the tendency of anticancer studies, medicinal herbs of fifty three experimental papers were analyzed and to examine the coures of studies, anticancer papers in the medical world were used. The obtained results were as follows Methods of herbal medicinal treatments were elirmination the pathogenic factor(祛邪 ) and supporting healthy energy(扶正) method used. In this study. immediately tumor bearing and immune response were the most important point. The subject of immediately tumor bearing was not in the specific cancer but in the influence on the life span of general cancerous cells. In the experimental study of immume response, the effect on NK cell activity of medicinal herbs most studied. The combined usage of medicinal herbs and anticaner agent mostly intended to know whether it inhibits the tumor cell growth. The serum test and blood cell nunber test show if medicinal herbs inhibit side effect of anticancer agcnt. More than 80 percents of used medicinal herbs, there were anticancer activities. However anticancer experimental studies using medicinal herbs have two weak points. The one, it was difficult to choose a prescription according to differentiation of symptoms and signs(辨證論) of the Oriental Medicine, because we put to the test not a man but a mouse. The other, as we obseved the indirect effect of the whole physiological regulation caused by synergic effects of the compex prescription, we don't undersstand the detailed mechanism of the herb. Therefore, if the anticancer effect of the herb is proved the experiment, we should research the concrete medical action of medicinal herbs and immunological analysis of herbal medicines to the body.

      • Bacillus thuringiensis var. darmstadiensis 와 var. sotto의 내독소와 Bacillus thuringiensis var. kurstaki가 생산하는 아밀라제의 연구

        이형환,김삼찬,황광현,임창로,조용칠,정인명 건국대학교 교육대학원 1991 敎育論叢 Vol.15 No.-

        Endotoxin crystals produced by B.thuringiensis var. darmstadiensis cultured in modified GYS medium over 72 h were ovoidal in shape and separated using Renografin gradient centrifugation. The crystal protein bands were observed. When B.thuringiensis var sotto was grown in the modified GYS broth, it entered stationary phase at 8-9 h after inoculation. Proteinaceous crystals were banded at the position in 40% of Renografin gradient. The solubilized crystal proteins were formed by two bands, 130 Kd and 68 Kd in the SDS-PAGE. One plasmid was observed in B.thuringiensis var darmstadiensis and no plasmid in var. sotto in this study. Enzyme activity of amylase produced B.thuringiensis var kurstaki strain in the basal medium was 0.4 units per ml, and was enhanced to 0.6 units per ml in the basal medium contained soluble starch, Ca^++, Mg^++ and Mn^++ ions. Amylase production medium containing soluble starch was suitable for the amylase production and the highest activity appeared at 4-6 h after cultivation at 32℃. The amylase activity obtained by ethanol precipitation was 0.20 units per ml in 0.1 M phosphate buffer. The band of the molecular weight of 50 Kd was observed by SDS-PAGE analysis. Km value of the amylase for the soluble starch was 6.80 mg per ml.

      • 후복막강경 근치적 신적출술 : 개복 근치적 신적출술과의 비교

        김경영,임동훈,문형윤,노준,김철성 朝鮮大學校 附設 醫學硏究所 2009 The Medical Journal of Chosun University Vol.33 No.S

        Purpose: Although kidney is located in the retroperitoneal space laparoscopic radical nephrectomy is usually performed by the transperitoneal approach. At our institution the retroperitoneal approach is preferred. We evaluated the surgical outcomes, safety, oncologic outcomes, and compared with the results those of open radical nephrectomy in a contemporary cohort. Materials and Methods: Between January 2000 and December 2005 we performed retroperitoneal laparoscopic radical nephrectomy for renal cell carcinoma in 37 patients with clinical stage cT1 and cT2. Data from the these patients were retrospectively compaired with 30 contemporary cases treated with open radical nephrectomy. The clinical parameters including perioperative outcomes, complications, pathologic data, learning curve and recurrence were evaluated. Results: For the 37 retroperitoneal radical nephrectomies mean tumor size was 4.6cm (range 2.3 to 8.0), surgical time was 203.6min (range 110-410) and blood loss was 241.8cc. Mean specimen size was 10.4cm (8.7-14.4). Mean analgesic used day was 1.3 (0-4) and mean postoperative hospital stay was 4.2 days. minor complications occur in 16 cases and no major complications occurred. Surgical margins were negative for tumor in all patients. Variable parameters were comparable between patients undergoing laparoscopic and open radical nephrectomy. However, laparoscopy resulted in decreased blood loss, surgical times, analgesia use, time to oral intake, time to drain removal and postoperative hospital stay. No different complication rate is between two groups Conclusions: Retroperitoneal laparoscopic radical nephrectomy can be a safe and effective treatment in renal cell carcinoma. Although no long-term follow-up is available, our follow up to mean 31 months confirm the effectiveness of retroperitoneal laparoscopic radical nephrectomy in terms of surgical principles and oncological effectiveness.

      • 음낭외상시 고환파열에 대한 초음파 검사의 진단적 유용성

        김경영,한동준,신대은,노준,문형윤,임동훈,김철성,박성운 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.3

        Purpose: We determined the use of scrotal ultrasonography in the initial diagnosis and management of testicular injuries due to blunt scrotal trauma. Mateiials and Methods: We reviewed 54 patients of scrotal trauma in the last 8 years. Forty patients were evaluated by ultrasonography preoperatively. A heterogeneous echo pattern of the testicular parenchyma with loss of oval shape, contour definition was the basis for diagnosis of testicular rupture. Among them, 33 cases underwent scrotal exploration and 7 cases were managed conservatively. The remaining 14 patients were evaluated only by physical examination, 8 patients of them were explored immediately because of suspicious testicular mpture. The accuracy of ultrasonography were determined by comparing radiographic interpretations with intraoperative findings. Results: Among the 33 patients who were evaluated by ultrasonography and explored immediately, there were 26 suspected testicular ruptures on ultrasonography. Surgical exploration revealed testicular rupture in 23 and simple hematoma in 10. The testicular rupture was correctly diagnosed by ultrasonography in the 22 cases, and there were 4 false-positive and 1 false-negative diagnoses of testicular rupture. The sensivity and specificity for the diagnosis of testicular rupture are 96% and 60%, and the positive and negative predictive values are 85% and 86%, respectively, Conclusions: Scrotal ultrasonography, with the main radiographic finding of a heterogeneous echo pattern of the testicular parenchyma with loss of oval shape, contour definition, is highly sensitive on the diagnosis of testicular rupture. And it increases the salvage rate for testicular rupture with preservation of the testicular function and prevents delayed complications of chronic pain, atrophy and orchiectomy associated with missed testicular rupture.

      • 前腕部 經穴 取穴에서 骨度分寸法과 一夫法의 比較 硏究

        박히준,채윤병,차웅석,박종배,이혜정,이향숙,인창식,고형균,김수영,최일환,김강식,문정배,배기태,유경환,육근영,정병주,손인철,임사비나 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2004 東西醫學硏究所 論文集 Vol.2004 No.-

        Background : The cun measurement System, an essential and convenient method in locating acupoints, has been widely used in the practice of acupuncture. However, traditional cun measurement has been criticized for its lack of reliability. Objectives : The purposes of this study are to determine if one cun measured by the directional methods have a consistency with that of proportional methods and to investigate which factors are related with these differences, especially in forearm. Methods : The distance between the elbow crease and the wrist crease of forearm was compared to a reference value of one cun obtained by the directional method. In this method, one cun is one third of the distance between index finger and Small finger of a subject, measured at proximal interphalangeal joint. In addition, to investigate the factors influencing the differences between these two methods, we measured the height and body weight and calculated body mass index (BMI). Finally we analyzed the factors correlated with these lengths by linear regression test. Results : The results showed that one cun obtained by the directional methods were significantly different from one cun by the proportional methods in forearm. It was demonstrated that the length acquired with the directional method was more correlated with body weight and body mass index, while the length obtained by the proportional method was more correlated with the height.

      • SCOPUSKCI등재

        Performance Analysis of DPSK Optical Communication for LEO-to-Ground Relay Link Via a GEO Satellite

        Lim, Hyung-Chul,Park, Jong Uk,Choi, Mansoo,Choi, Chul-Sung,Choi, Jae-Dong,Kim, Jongah The Korean Space Science Society 2020 Journal of Astronomy and Space Sciences Vol.37 No.1

        Satellite optical communication has gained significant attention owing to its many quality features (e.g., a larger bandwidth, license free spectrum, higher data rate, and better security) compared to satellite microwave communication. Various experiments have been performed during many space missions to demonstrate and characterize inter-satellite links, downlinks, and uplinks. Korea has also planned to establish an experimental communication system using a geostationary earth orbit (GEO) satellite and the Geochang station as an optical ground station for low Earth orbit (LEO)-to-ground optical relay links. In this study, the performance of inter-satellite communication links and downlinks was investigated for the new Korean experimental communication system in terms of link margin, bit error rate (BER), and channel capacity. In particular, the performance of the inter-satellite links was analyzed based on the receiving apertures and the transmitting power, while that of the downlink was analyzed in terms of atmospheric turbulence conditions and transmitting power. Finally, we discussed two system parameters of receiving aperture and transmitting power to meet the three criteria of link margin, BER, and channel capacity.

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