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朴哲淳 대한신경정신의학회 1981 신경정신의학 Vol.20 No.2
In order to study pessimism in depressive neurotics, the author used the Beck’s Hopelessness Scale for measuring the hopelessness. The author selected 19 to 37 years old 180 normal subjects and 420 patients (depressive neurosis, anxiety neurosis, and (dermatoses) from April, 1978 to March, 1979. The results were as follows: 1. The hopelessness score was highest in depressive neurotics group followed by anxiety neurotics, dermatoses, and normal control group, in that order. 2. The hopelessness score was not different between sex groups in normal and patient groups. 3. There is no significant difference of hopelessness score between depressive neurotics and anxiety neurotics group. 4. The scores of “Feelings about Future” , “Loss of Motivation”, and “Future Expectation” were significantly higher in depressive neurotics and anxiety neurotics groups than in dermatoses and normal control groups, and there was no significant difference between depressive neurotics and anxiety neurotics group.
Map과 GPS 기반의 혼적을 고려한 물류할당 및 모니터링 시스템
박철순,랄손 바즈라차리야 한국산업경영시스템학회 2018 한국산업경영시스템학회지 Vol.41 No.4
In the field of optimization, many studies have been performed on various types of Vehicle Routing Problem (VRP) for a long time. A variety of models have been derived to extend the basic VRP model, to consider multiple truck terminal, multiple pickup and delivery, and time windows characteristics. A lot of research has been performed to find better solutions in a reasonable time for these models with heuristic approaches. In this paper, by considering realtime traffic characteristics in Map Navigation environment, we proposed a method to manage realistic optimal path allocation for the logistics trucks and cargoes, which are dispersed, in order to realize the realistic cargo mixing allowance and time constraint enforcement which were required as the most important points for an online logistics brokerage service company. Then we developed a prototype system that can support above functionality together with delivery status monitoring on Map Navigation environment. First, through Map Navigation system, we derived information such as navigation-based travel time required for logistics allocation scheduling based on multiple terminal multiple pickup and delivery models with time constraints. Especially, the travel time can be actually obtained by using the Map Navigation system by reflecting the road situation and traffic. Second, we made a mathematical model for optimal path allocation using the derived information, and solved it using an optimization solver. Third, we constructed the prototype system to provide the proposed method together with realtime logistics monitoring by arranging the allocation results in the Map Navigation environment.
朴哲淳,申石澈 충남대학교 의과대학 지역사회의학연구소 1984 충남의대잡지 Vol.11 No.1
This study was attempted to investigate systemically the effects of lithium(Li) cn the renal function and to evaluate the mechanism of its action. After the cannulation of carotid artery, jugular vein, and ureters were prepared for the recording of blood pressure, the infusion of yarious drugs, and the collection of urine respectively. Physiological saline was infused to hydrate the rabbit, and the mixed saline solution of para aminohippuric acid and inulin (PAH-IN solution) was infused to determine the glomerular filtration rate(GFR) and the renal plasma flow RPF). During the infusion of LiCl solution (0. 2 mEg/kg/hr) after Li loading (2 mEq/kg), 2% NaCI solution or 0. 3 M sucrose solution was infused with PAH-IN solution. And concentration of IN and PAH were measured by the method of Smith and the method of Schreiner, concentration of each ion(K, Na, and Li) by flamephotometer, and osmolar concentration by osmometer, respectively. Plasma clearances of various substances were calculated from the urine volume and the measured data. The results were summarized as follow: 1. By the lithium loading, the GFR and RPF were decreased, and the urinary excretion rates of Na^+ , K^+, and osmolar substances were increased. But the water diuretic effect was observed as a result of the reduced negative free water clearance. 2. By the infusion of 0.3M, sucrose solution, the concentration of Na^+ and Li^+ in plasma and urine were more lowered than those of the infusion of 2% NaCl solution, and plasma clearances of K^+ and Li^+ were higher than those of 2% NaCl. 3. Urinary excretion rate of osmolar substance was increased by the infusion of NaCl solution or sucrose solution, but excretion rate of Na^+ by sucrose infusion and excretion rate of K^+ by NaCI infusion were decreased, respectively. 4. Relation coefficient between the urinary excretion rates of Na^+ and Li^+ was significant, and excretion of Li^+ by sucrose infusion was higher than that of the NaCl infusion at the same excretion rate of Na^+, From the above results, it was suggested that the decrease of GFR by Li^+ infusion was due to the reduced RPF and the activity of Li^+ may be inhibited by the action of sucrose.
프로세스 기반의 트리거를 이용한 Invariant 제약조건 관리
박철순,최인준 한국산업경영시스템학회 2004 한국산업경영시스템학회 학술대회 Vol.2004 No.춘계
Invariant 제약조건을 관리하기 위해서는 주로 데이터베이스 트리거를 사용하여 왔다. DB 트리거를 이용해서 제약조건을 관리하는 방법은 개념은 좋지만 시스템에 상당한 부하를 초래하며 성능측면에서 비현실적이다. 또한, 현실적으로 Invariant는 항상 체크하는 것이 아니라 필요한 시점에서만 체크되어 관리되고 있다. 보통 Invariant는 관련된 비즈니스 프로세스 또는 단위업무를 수행할 때 체크된다. 더욱이 Invariant의 체크시점은 인력 및 장비의 가용성에 관계된 여러 경제적인 이유들로 인해 변경될 수 있다. 본 연구에서는 워크플로, BPMS등의 환경에서 비즈니스 Rule을 포함하는 Invariant 형태의 비즈니스 프로세스 제약조건을 통합 관리할 수 있는 방법론을 제시한다.