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함인혜,전인주,김호현,고성권,황완균 중앙대학교 약학연구소 2002 약학 논총 Vol.16 No.-
Organic Ge and Se are very important agents of anti-cancer and preventive geriatric disease drugs so on. We were carried out the micro-elements(Ge, Se, Fe, Mg and Zn) content of several Ginsengs that were cultivated in Korea(6 regional groups) and foreign countries(Japan, China and America) by ICP analysis. From results, Ginseng of Kumsan have been appeared to high levels of Ge and Se contents in comparison with other regional samples. Especially 4 years old Ginseng appeared to high levels of Ge, Se but also Fe, Mg and Zn contents.
송미숙,전기홍,송현종,김정은,박승구,신상건,이동훈,정성현,최연주,최완철,최민규,황재철,홍지만 아주대학교 1997 아주의학 Vol.2 No.2
This study was performed to identify risk factors for depression among the elderly in a rural area. A survey was done for the elderly living in Gosam-myenn, Ansung-kun during the period of July 28, 1997 and July 30, 1997. Demographic and sodoeconornic characteristics, and functional and health Status were assessed using a structured questionnaire, and the level of depression was measured by GDS score. The data obtained were analyzed by frequencies, percentage, t-test, ANOVA, and multiple regression, and the results were as follows: 1. The total sample consisted of 133 elderly. Of them, 47 elderly (35.4%) showed significant depressive Symptoms. 2. The GDS score was the highest for the group over 85 years of age (p < 0.05). Those living alone or widowed showed lower GDS score than those living with someone or married (p < 0.05). 3. The GDS score was the highest in the absolutely dependent group, followed by the partially dependent group, and the independent group (p < 0.01). The elderly who perceived their health Status as excellent showed the lowest GDS score. In contrast, those who had more than five chronic diseases showed the highest GDS score. 4. The elderly receiving financial and emotional support from their family or friends showed lower GDS score compared to those without any support. 5. The economically dependent group showed higher GDS score than that of independent group. 6. The elderly who involved in leisure activities showed lower GDS score than those without any involvement. 7. In terms of risk factors for depression, we found that perceived health Status, subjective economic Status, leisure activities, living arrangement and financial support were inversely associated with GDS score, whereas labor support was positively associated with GDS score. Based upon the above findings, this study suggests that these risk factors for depression in the elderly should be taken into consideration for a comprehensive mental health program for the elderly living in the rural area.
서주완(Joo Wan Seo),김현성(Hyun Sung Kim),박태영(Tae Young Park),송병준(Byung Joon Song),정윤철(Yun Cheol Jeong),김종진(Jong Jin Kim),천정훈(Jung hoon Chun),정영태(Young Tae Jung) 한국화재소방학회 2022 한국화재소방학회 학술대회 논문집 Vol.2022 No.추계
최근 짓는 건물은 고층화, 대형화로 점점 복잡해지고 있으며, 화재하중도 높아 고층건물의 연소 확대 방지를 위해서는 연결송수관설비를 활용한 진압전술이 필요하다. 2022년 소방청 통계연보 소방장비 현황에 의하면, 소방서의 화재진압차종은 소방펌프차, 소방물탱크차 등이며, 화재를 진압하는 대다수의 소방차는 A-1소방펌프(규격방수압력 0.85 MPa의 규격방수량 2.8 ㎥/min이상, 고압방수압력 1.4 MPa의 고압방수량 2.0 ㎥/min이상)을 사용한다. A-1소방펌프의 특징은 우햐항 펌프성능시험곡선을 가진다. 본 연구에서는 고층건물 화재 시 건물 연결송수관설비 가압송수장치(증압용 펌프)가 작동하지 않는 상황을 가정하여, 소방차 1대 고압방수압력(1.4 MPa, 1.6 MPa) 단독방수와 소방차 2대를 직렬로 중계(2대 동일 특성이 같은 A-1펌프 사용, 2대 특성이 다른 펌프 사용)하고, 소방펌프 2대의 압력변화를 다양하게 하면서 소방차 1대 단독방수일 경우와 압력유량 값을 비교하였다. 실험결과 고압방수압력(1.4 MPa, 1.6 MPa)에서 소방차 2대의 특성이 같은 펌프와 특성이 다른 펌프 모두 압력과 유량이 소방차 1대 단독방수보다 높았다. 단독방수 시 방수구를 막고, 압력상승 후 1.4 MPa, 1.6 MPa로 개방하였을 때 실질적으로 방수압력이 급격히 떨어졌다. 소방펌프중계효율은 중계차(방수하는 차로 물을 보내주는 차)와 방수차(물을 직접 방수하는 차)의 압력편차가 크거나, 중계차의 압력이 방수차보다 상대적으로 낮을 때 중계효율이 낮았다. 따라서, 고층건물 화재 시 또는 훈련 시에 건물 송수압력 범위를 확인하고, 1.4 MPa이상 시 소방차 2대를 각각 규격방수압력 부근에서 압력편차를 적게 한 중계방수가 필요함을 제시한다.
Survey on the Current Status of Laboratory Animal Quality Control Program in Korea
Byoung Chun Lee,Mee Kyung Jang,Kab Ryong Chae,Dae Youn Hwang,Byoung Guk Kim,Seung Wan Jee,Sun Bo Shim,Su Hae Lee,Ji Soon Sin,Chang Jun Bae,Jong-Min Woo,Jung Sik Cho,Kwang Soo Joo,Chuel Kyu Kim 한국실험동물학회 2008 Laboratory Animal Research Vol.24 No.1
It is critical to harmonize the laboratory animal quality control program of each organization in order to improve the quality of laboratory animals. The aim of this study was to survey the current status of the laboratory animal quality control of 6 major animal suppliers and 14 Good Laboratory Practice (GLP) organizations. First of all, 6 suppliers provided more than 3 million animals, and 99% of them were specific pathogen-free (SPF) mice and rats. 88% of the GLP organizations were also using SPF animals, 81% of which were mice and rats. Two suppliers importing and offering animals were depending on the animal health report certified by providers, 2 suppliers were outsourcing to a domestic monitoring center, and 2 suppliers were monitoring in-house and simultaneously sending live animals to international centers for microbiological monitoring. All suppliers were monitoring the genetic integrity of inbred animals only once in a year. Fifty seven percentage of GLP organizations were doing the in-house microbiological monitoring, and only one of them was evaluating the genetic background of animals. Four suppliers monitoring animal quality were applying more than 5 samples of each animal facility unit quarterly. Fifty five percentage of GLP organizations monitored with each facility unit and 36% of them chose samples in the experimental group. Additionally, the animal number used in monitoring was 3-5, and monitoring frequency was 4 times in a year. Two suppliers sending animals to foreign companies for monitoring adopted almost all agents as testing items. Two suppliers were testing critical items including Ectromelia virus, Sendai virus, Mouse Hepatitis virus, Hantaan virus, Rat Coronavirus, Minute virus of mice, M. pulmonis, C. piliforme, and H. hepaticus. It were only 5 microoragnisms, MHV, Sendai virus, M. pulmonis, C. piliforme, and Ectoparasites which more than half of GLP organizations were monitoring commonly. Almost all organizations had their own SOPs for animal health monitoring and required a nationally harmonized guideline on the laboratory animal quality control. The result of this survey will be basic information on the national policy of the management of laboratory animal quality, and contribute to the improvement of laboratory animal quality in Korea.
김완식,윤주식,석민호,안기량,서병태,김명숙,김홍대,최근춘 대한마취과학회 1980 Korean Journal of Anesthesiology Vol.13 No.2
Usually, blood pressure and pulse rate are increased in tbe light planes of anesthesia at the end of operation especially just prior to extubation. The increasing of heart rate and blood pressure produce an elevation in cardiac work and oxygen demand and can lead to mycardial ischemia in patients with coronary artery disease. Tracheal anesthesia with 2 or 4% lidocaine (jelly and liquid) was done as a method which permits patients to be extubated during light planes of anesthesia. The results were as follows: 1) Each groups had similar blood pressure and pulse rate five or ten miriutes before extubation. 2) Lidocaine group did not have a significant elevation in systolic or diastolic blood pressure and pulse rate at or after extubation or in the recovery room. 3) The control group had significantly increases in both pressure and pulse rate(p$lt;0.01). The data suggest that maneuver should be of advantage to patients with coronary artery disease who may not be able to tolerate the increased cardiac dynamics during extubation period.
Chemical Constituents of the Leaves of Staphylea bumalda
Soon Joo Sohn,Yong Soo Kwon,Sung Soo Kim,Wan Joo Chun,Chang Min Kim 한국생약학회 2004 Natural Product Sciences Vol.10 No.4
Six compounds were isolated from the BuOH soluble fraction of the leaves of Staphylea bumalda. On the basis of spectral data, they were identified as atragalin (1), 2-methyl-5, 7-dihydroxy-chromone-7-O-β-Dglucopyranoside (2), isoquercitrin (3), nicotiflorin (4), kaempferol 3-neohesperidoside (5), kaempferol 3-O-[α- rhamno-pyranosyl-(14)-rhamnopyranosyl-(16)-β-D-glucopyranoside] (6),respectively.
Paik, Chun-hyun,Chung, Yong-joo,Cha, Dong-wan 한국경영과학회 1998 韓國經營科學會誌 Vol.23 No.3
The demand of large capacity in coming cellular systems makes inevitable the deployment of small cells, rendering more frequent handoff occurrences of calls than in the conventional system. The key issue is then how effectively to reduce the chance of unsuccessful handoffs, since the handoff failure is less desirable than that of a new call attempt. In this study, we consider the control policies which give priority to handoff calls by limiting channel assignment for the originating new calls, and allow queueing the new calls which are rejected at their first attempts. On this system, we propose the problem of finding an optimal call control strategy which optimizes the objective function value, while satisfying the requirements on the handoff/new call blocking probabilities and the new call delay. The objective function takes the most general form to include such well-known performance measures as the weighted average carried traffic and the handoff call blocking probability. The problem is formulated into two different linear programming (LP) models. One is based on the direct employment of steady state equations, and the other uses the theory of semi-Markov decision process. Two LP formulations are competitive each other, having its own strength in the numbers of variables and constraints. Extensive experiments are also conducted to show which call control strategy is optimal under various system environments having different objective functions and traffic patterns.