http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이상기,김동수,김형의,Lee, Sang-Gi,Kim, Dong-Su,Kim, Hyeong-Ui 재료연구소 1999 機械와 材料 Vol.11 No.2
The paper describes a characteristics analysis for cushion pressure and cushion stroke time at hydraulic cushioning cylinder. In hydraulic cushioning cylinder, an inertia exaggerates a kinetic energy at a reciprocation that collide with an end of stroke and generate a destructive shock, noise and vibration within the structural and operating member of machine of equipment. In order to reduce which cause to undesirable noise, vibration and fatigue in hydraulic control system, it is indispensible measure a cushion parameters at cushion region of hydraulic cushioning cylinder. A cushioning device is applied to absorb high impact energy and to decelerate a fast travelling object, too. At an experimental results, it turns out that cushion pressure is mainly a function of the external load and cylinder input flowrate rather than the supply pressure.
M/E<sub>n</sub>/1 대기모형에서 얼랑분포의 성질을 이용한 오버슛의 분포에 대한 근사
이상기,배종호,Lee, Sang-Gi,Bae, Jongho 한국통계학회 2015 응용통계연구 Vol.28 No.1
본 논문은 $M/E_n/1$ 대기모형에서 작업부하량과정의 오버슛의 분포함수에 대한 근사식을 제안한다. 오버슛이란 작업부하량과정이 미리 정해진 한계점을 처음으로 초과할 때 초과하는 양을 말하는데 정확한 분포함수는 수학적인 표현으로만 얻어졌을 뿐 분포함수를 실제로 계산하는 것은 거의 불가능하다. 그래서 기존 연구에서는 오버슛에 관한 몇가지 성질을 이용하여 오버슛의 분포함수에 대한 근사식이 구해졌다. 본 논문은 고객의 서비스시간의 분포가 얼랑분포라는 점을 활용하여 기존에 얻어진 근사식보다 더 정확한 근사식을 제안한다. 그리고 제안한 근사식이 얼마나 참값에 가까운지 판단하기 위하여 시뮬레이션을 통하여 얻어진 오버슛의 분포함수와 비교한다. We consider an $M/E_n/1$ queueing model where customers arrive at a facility with a single server according to a Poisson process with customer service times assumed to be independent and identically distributed with Erlang distribution. We concentrate on the overshoot of the workload process in the queue. The overshoot means the excess over a threshold at the moment where the workload process exceeds the threshold. The approximation of the distribution of the overshoot was proposed by Bae et al. (2011); however, but the accuracy of the approximation was unsatisfactory. We derive an advanced approximation using the property of the Erlang distribution. Finally the newly proposed approximation is compared with the results of the previous study.
이종 학술콘텐트 간 연계.융합 사례연구 - KISTI CLICK 중심 -
이상기,최희윤,김선태,이태석,한희준,현미환,예용희,Lee, Sang-Gi,Choi, Hee-Yoon,Kim, Sun-Tae,Lee, Tae-Seok,Han, Hee-Jun,Hyun, Mi-Hwan,Yae, Yong-Hee 한국비블리아학회 2008 한국비블리아학회지 Vol.19 No.1
서로 다른 영역의 기술이나 서비스를 결합하여 새로운 형태의 제품이나 서비스를 창출하는 디지털 컨버전스가 급속하게 발전하고 있으며, 융합 대상이 기술 중심에서 콘텐트 중심으로 동종 콘텐트에서 이종 콘텐트로 확산되는 추세이다. 학술콘텐트 부분에서도 다양한 포맷과 유형의 학술콘텐트를 융합하여 새로운 서비스를 창출하려는 연구가 활발하다. 본고에서는 학술콘텐트 부분의 연계 융합 사례를 고찰하고 특징 및 장단점을 분석하였으며, 특히 KISTI의 이종 콘텐트 간 연계 융합 통합 모델인 CLICK을 중심으로 통합 플랫폼의 특징 문제점 및 해결책, 향후 연구과제를 제시하였다.
당뇨로 인한 우측(右側 ) 족저부(足底部) 및 좌수지(左手指) 궤양(潰瘍)을 동반한 환자 치험 1 예
이상기,이경로,송정모,Lee, Sang-Gi,Lee, Kyung-Lo,Song, Jeong-Mo 사상체질의학회 2004 사상체질의학회지 Vol.16 No.3
1. Objectives Besides Diabetes Mellitus, its complications are matter of concerns as well. Its following complications are cardiovascular disease, glomerulopathy, retinopathy, neuropathy and diabetic gangrene. These complications can cause overall damage in major organs. In traditional oriental medicine it has been perceived that gangrene is mainly caused by "hwa(火)" but under sasang constitutional medicine its has been diagnosed as Taeumin superficial-disease(太陰人 表病) and Taeumin Jowiseungchung-tang(調胃升淸湯) was prescribed. As a result, significal improvments was noted and thefore we report the outcome. 2. Methods We have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to a patient for treating diabetes complications. 3. Results This patient was treated with Sasang Constitional Medicine and acupuncture for about three weeks. After treatment, ulcer and whole body edema were improved considerbly. 4. Conclusions We have dianosed the patient as Taeumin superficial-disease(太陰人 表病) by undergoing several diagnostic method used in sasang constutional medicine. Therefore we have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to the patient and has obtained satisfactory results in curing several diabetic complications especially ulcer due to diabetes.
이상기,김영원,신동윤,임미경,이자형,송정모,김락형,Lee, Sang-Gi,Kim, Young-Won,Shin, Dong-Yun,Lim, Mi-Kyoung,Yi, Ja-Hyeong,Song, Jung-Mo,Kim, Lak-Hyung 사상체질의학회 2007 사상체질의학회지 Vol.19 No.2
1. Objectives The objective of this study was to measure the differences of EEG changes accoring to emotional stimulus in Sasangin. 2. Methods 44 healthy volunteers(Soyangin 10, Soeumin 14, Taeumin 20) were participated. Sasang Constitution was diagnosed by Sasang specialist. Volunteers watched horror movie as the emotional stimulus. We recorded EEG data during pre-stimulus rest(120sec), during-stimulus(197sec), rest-stimulus(120sec). Power spectral analysis was done and relitive power and ${\alpha}/{\beta}$ ratio were compared among each groups. 3. Results (1) The mean of relative ${\alpha}$ of Taeumin was significantly decreased according to stimulus compared with Soyagnin. (2) Relative ${\alpha}$ of Soeumin was significantly decreased in T3 area according to stimulus compared with Taeumin. (3) Relative ${\beta}$ of Taeumin group was significantly increased in Fp2 area according to stimulus compared with Soeumin. 4) Relative $high-{\beta}$ of Soyangin group was significantly decreased in F3 by the post-stimulus rest compared with Soeumin. (5) ${\alpha}/{\beta}$ ratio of Soeumin was significantly increased according to stimulus compared with other groups. 4. Conclusions Soyangin showed sensitive changes according to the emotional simulus compared with Soeumin and Taeumin. Above results suggest that the emotional characteristics of Sasangin can be measured by objective methods as by EEG.