의료 폐기물의 처리에 관한 연구

김용수,배성렬,김영채,박우용,공성호 한양대학교 에너지 ·환경기술연구소 1995 에너지·環境技術論文集 Vol.2 No.-

의료기관의 증가에 따라서 발생되는 폐기물의 증가 또한 매우 심각한 형편이다. 하지만 우리나라에서는 아직 의료 폐기물의 법적인 규제나 처리기술의 개발이 매우 미흡한 상태이다. 의료 폐기물은 일반적으로 일반 폐기물과 감염성 폐기물로 나뉘며 특히 감염성 폐기물은 발생 후부터 일반 폐기물과 분리하여 수거, 운반, 보관 및 처리하는 것이 매우 중요하다. 발생된 감염성 의료 폐기물은 일반적으로 멸균을 거쳐야 하며 최종적으로 회전식 소각로, 공기 조정식 소각로 또는 로타리킬른 등이 소각로를 이용, 소각처리 후 최종처리를 하도록 한다. 이에 따라 대기오염 방지시설 또한 적절히 설치·운영되도록 한다. Due to increasing numbers of medical facilities, wastes regarding medical activities are also increasing recently medical wastes are generally categorized an infectious wastes and non-infectious wastes. Infectious medical wastes should be separated from non-infectious wasted right after generation. A sterilization process should be applied before further treatment of infectious wastes. An incineration process is usually used for final treatment of wastes. Therefore, air pollution control devices are carefully designed for incinerators.

乾癬治療를 爲한 副腎皮質 Hormone 長期間 使用으로 倂發된 醫因性 Cushing氏 症候群 治驗一例 報告

金又烈,林春平 順天鄕大學校 1977 의대논문집 Vol.2 No.-

A case of iatrogenic Cushing's syndrome in a 42-year-old male pntient was experienced. Physical findings revealed central obesity, moon face, Purplish striae in lower abdomen. The patient had a history of corticosteroid treatment for the management of psoriasis for several years. The diagnosis was confermed by patient's history, physical finding, biochemical and hormonal assay. On admission, the hormonal studies revealed as follows;urinary 17 Hydroxycortico steroidslevel was decreased to a range of 5㎎/day and urinary 17-ketosteroid level was within normal limit. After A.C.T.H. stimulation test, the urinary 17-hydroxycorticosteroid level was not elevated also. Our case was reported and the current literatures about cushing's syndrome wers reviewed

ZnO 박막 센서의 DMA 가스 검지 특성

김성우,최우창,류지열,박성현,최혁환,이명교,권태하 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

The DMA(Dimethylamine) gas sensors were fabricated with the ZnO-based thin films grown by a RF magnetron sputtering method. We investigated the sensitivity and response time according to temperature variation and DMA gas concentration. The ZnO-based thin film sensors sputtered in oxygen atmosphere showed higher sensitivity than those sputtered in argon atmosphere. The ZnO-based thin film sensors doped with Al_(2)O_(3), In_(2)O_(3) and V_(2)O_(5) and sputtered in oxygen atmosphere showed the maximum sensitivity of 218(working temperature, 250 ℃, DMA gas, 160 ppm) and speedy response time. The ZnO-based thin film sensors doped with Al_(2)O_(3), In_(2)O_(3), TiO_(2) and V_(2)O_(5), sputtered in oxygen atmosphere and aged at 330 ℃ showed the maximum sensitivity of 156(working temperature, 250 ℃, DMA gas, 160 ppm).

相變化物質을 利用한 열저장계의 說計變數에 關한 硏究(Ⅰ)

金雨植,宋熙烈,金鳳滿 연세대학교 산업기술연구소 1980 논문집 Vol.12 No.1

This investigation was performed to determine the changes in the type of energy extraction by the shift of the temperature and flowrate of the input air in the heat supplying system of a phase change material-heat storage system. For the phase change material. Na₂SO₄10H₂O was used and by changing the temperature and flowrate of the input air, the different wall temperatures(T??) and the temperatures at the center of the cylinder(T?) were recorded. Thus the changes in surface heat flux as a function of time of latent heat output was obtained. The result reveals that when the temperature of input air is constant. the freezing time of Na₂SO₄·10H₂O is inversely proportional to the flow rate of air with the slope of 0.39 in the log-log coordinate and when the flow rate of air is const, ant the freezing time of Na₂So₄.10H₂O is proportional to the input air with the slope of 1.84 in the log-log coordinate. Another conclusion is that the flow rate of the input air had a markedly influence than the temperature on affecting the type of energy extraction.

전산의 사용에 따른 업무능률성 분석 : 경상북도 구미시청의 사례 The Case of Gu Mi City Hall, Kyong Sang Book Do

김시영,정우열 영남대학교 지역발전연구소 1998 새마을지역개발연구 Vol.23 No.-

Nowadays, the Local government have become extensive users of computing. The increase in computing use has been based on the assumption is a tool which enables agencies to increase their business efficiency. According to the analysis of the data collected from the Gu-Mi city local government, analysis in efficiency attributable to the use of computing are perceived by local government employees in term of work speed, accuracy, cost saving, service improvement, and sense of accomplishment. However, much uncertainty exists regarding the utilization of time freed, coordination of service delivery by the use of computing.

타이어금형 제작공장의 설비 재배치

김만수,김우열 東新大學校 工業技術硏究所 1997 工業技術硏究 Vol.3 No.-

A lot of company have depended of an empirical method in facility layout planning. This method give rise a loss of handling and space reduction of productivity to a company, especially a mould manufacturing factory which thers is a lot of facilities such as lath, press milling. In this paper we analyze the current facility layout in Sehwa Machine Co. Ltd. and suggest an effective layout by using SLP method. The result shows that the number of backward stream and moving distance diminish evidently.

ZnO 박막 센서의 암모니아 가스 검지 특성

최우창,김성우,류지열,박성현,최혁환,이명교,권태하 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

The ammonia gas sensors were fabricated with the ZnO-based thin films grown by a RF magnetron sputtering method. We investigated the sensitivity and response time according to temperature variation and ammonia gas concentration. The sensors sputtered in oxygen atmosphere showed higher sensitivity than those sputtered in argon atmosphere. The Au(0.3 wt.%) doped-ZnO thin film sensors aged at 330 ℃ showed the maximum sensitivity of 28 and good response time at a working temperature of 250 ℃ and to 160 ppm ammonia gas. The Pt(0.1 wt.%) doped-ZnO thin film sensors showed the maximum sensitivity at a low working temperature of 200 ℃.

전라북도 장수군 일대의 산림 조류상

이두표,김우열 호남대학교 2007 학술논문집 Vol.28 No.2

To elucidate the present forest avifauna of Jangsoo county, bird censuses were conducted at Mt. Seongsu, Mt. Bonghwang, and Mt, Mabong from April to July, 2006. A total of 48 bird species was recorded. Among them, 36 species were estimated prospective breeding species. The most of dominant species in this area was Paradoxornis webbianus. The legal protected birds listed by Ministry of Environment were 2species : Falco peregrinus(endengerd species classⅠ) and Charadrius placidus(endengerd species classⅡ). And also, natural monuments designated by Cultural Heritage Administration were six species : Falco peregrinus, Accipiter soloensis, Falco tinnunculus, Ninox scutulata, Otus scops and Aix galericulata

TMA 가스센서용 마이크로히터 발열특성 연구

박성현,최우창,김성우,류지열,최혁환,이명교,권태하 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

The microheaters with Si_(3)N_(4)(1500Å)/SiO_(2)(3000Å)/Si_(3)N_(4)( 1500Å) diaphragm were fabricated by thin film technology and silicon micromachining techniques. Pt and poly-Si(n+) materials were used as heater materials of microheater. Pt temperature sensor was fabricated to detect the temperature of microheaters. The thermal analysis including temperature distribution on diaphragm and power consumption of the microheater were executed by the FEM method and heat transfer equations. The power consumption of the Pt and poly-Si(n+) heaters were measured and compared to that of thermal analysis by FEM simulation.

Anti-cancer Effect of Cordyceps Bassiana derived KTH-13

Ji Hye Kim,Woo Seok Yang,Han Gyung Kim,Eun ji Kim,Sung youl Hong,Jae Youl Cho 한국버섯학회 2014 버섯 Vol.18 No.2

In this study, we aimed to examine the cellular and molecular mechanisms of KTH-13 (4-isopropyl-2,6-bis(1-phenylethyl)phenol) which is derived from Cordyceps staphylindaecola in the cancer cells survival. The apoptotic effect of KTH-13 on various cancer cells, such as C6 glioma, MDA-MB-231 breast cancer, and A549 cells, was determined by MTT assay, and result showed that KTH-13 (0-100mM) dramatically inhibited the cancer cell survival. IC50 of KTH13 were 60.549, 53.512, >100, in C6, MDA-MB-231, and A549, respectively. DNA fragmentation result revealed that MDA-MB-231 cells treated with KTH-13 100mM undergoes apoptosis. To understand the action mechanism of KTH-13, the effect of KTH-13 on caspase which is key regulator of apoptosis was verified. The amount of cleaved capspase-3 and 7, executioner caspases, was increased by KTH-13 treatment, at time dependent (capspase-3 case) and dose dependent manner (caspase-7 case). And the cleavage of caspase-9 which is initiator caspase was also elevated in KTH-13 treated MDA-MB-231 cells showing time dependent manner. However, caspase-8 was not regulated by KTH-13, indicating KTH-13 specifically targets caspase-9 signal. As caspase-9 is closely associated with intrinsic pathway, the involvement of bcl-2 family was identified. Bax, pro-apoptotic molecule, was up-regulated whereas Bcl-2, anti-apoptotic protein, was down-regulated. And the Bax/Bcl-2 ratio was increased about 10 times. Then, the survival signal was also observed. The phosphorylation of Akt and p85 was diminished by KTH-13 treatment at 2,4,6 and 8 hour. Collectively, results suggest that KTH-13 induces cancer cells apoptosis via caspase3, 7, 8 and Bcl-2 family signaling pathway. And the Akt and p85 is also involved in KTH-13 action mechanism.