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임병주 대한류마티스 건강전문학회 1995 근관절건강학회지 Vol.2 No.2
This deductive-survey study was undertaken in order to examine if there were relationship between causal perceptions, expectation for the cure and compliance. The sampling method was a non-probability, purposive sampling technique. The participants of this study was 195 volunteers 1) who have been diagnosed as having chronic arthritis and 2) who were at the rheumatis center of one university hospital in Seoul between September 18th to September 25th 1989. This instruments used for this study were the compliance scale developed by Choi and causal perception scale developed by the researcher. Analysis of data was done using pass analysis, Pearson correlation coefficient. The result of study were as follow : Hypothesis 1 : "It's correlated that causal perception, expectation for cure and compliance" was accepted.(F=4.85, p<.05) Hypothesis 2 : "It's correlated that causal perception, expectation for cure and with depression" was partially accepted. Total age group-worry and anxiety(r=.1580, p<.001) After 40-function of immunity(r=.1731, p<.05) worry and anxiety(r=.1730, p<.001) In the relationship between general characteristics and the variables, age group correlated with compliance and causal perception.
리튬이온 배터리의 열폭주 이상징후 감지를 위한 측정 변수 특성 분석
임병주,조성훈,이가람,최석민,박창대 한국수소및신에너지학회 2022 한국수소 및 신에너지학회논문집 Vol.33 No.1
To detect anomaly signs of thermal runaway in advance, this study analyzed the signals from various sensors installed in lithium-ion batteries. The thermal runaway mechanism was analyzed, and measurement variables for anomalies of a battery cell were surface temperature, strain, and gas concentration. The changes and characteristics of three variables during the thermal runaway process were analyzed under the abuse environment: the overheat and the overcharge. In experiment, the thermal runaway of the battery proceeded in the initial developing stage, the outgassing stage, and the ignition stage. Analysis from the measured data indicated that the suitable variable to detect all stages of thermal runaway is the surface temperature of the battery, and surface strain is alternative.
태양열 담수기 다중효용부의 해수 공급유량에 관한 1차원 수치해석
임병주(Byung-Ju Lim),유상석(Sang-Seok Yu),박창대(Change-Dae Park),정경열(Kyung-Yul Chung) 대한기계학회 2016 大韓機械學會論文集B Vol.40 No.7
다중효용 태양열 담수기에서 다중효용부 각 효용단의 해수 공급유량은 효용수 증가에 따른 열에너지 감소를 고려하여 점차 줄어드는데, 선행연구에서는 효용단 별 서로 다른 공급유량 감소율을 제시하였다. 이론적으로 열에너지 감소율이 일정하기 때문에 효용단 별 서로 다른 유량감소율은 적절하지 않다. 본 논문에서는 수치해석을 통해 다중효용부의 공급유량 감소율에 따른 담수생산량 특성을 분석하였다. 해석결과 공급에너지가 같은 조건(12MJ)에서 동일한 감소율(11%)일 때와 그렇지 않을 때의 생산량 차이는 0.56%로 거의 비슷하였다. 또한 수치해석을 통해 고온의 배기가스로부터 얻은 공급 에너지량에 따라 다중효용부 해수공급유량의 최적값을 도출하였다. 최적 유량은 에너지의 공급 형태에 따라 선형적으로 증가하거나 증가 후 평형상태에 도달하는 현상이 발생하였다. In a multi-effect solar distiller, a feeding rate of seawater to each effect should be decreased as the effect number is increased. In previous studies, the feed rate of seawater was not reduced evenly between the effects, which is unreasonable, since the thermal energy input of each effect decreases by the same amount. In this work, numerical analysis was carried out in order to elucidate this discrepancy. The results showed that the amount of distillates produced was almost the same for both evenly and unevenly reduced flow rates between the effects. Optimum feed rates of seawater with various energy inputs from exhaust gas heat exchanger were also obtained. The results showed that the optimum feed rate of the first effect increased linearly or reached a steady state depending on the heat flux.