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서일교,김도훈 濟州大學校 産業技術硏究所 1997 산업기술연구소논문집 Vol.8 No.2
This paper presents an application of the boundary element method to assembled plate structures which have light weight and great loading capacity. First, we formulate the boundary integral equations of a single plate which represents bending and plane stress behaviour and discretize the formulations using boundary elements. Next, each plates are assembled on 3-D space. As numerical examples, 2 types of plate structures are selected and the applicability of the method is demonstrated through the comparison with the solutions by other method.
정인원,박환규,정연복,김수일,원구연,김교형,신철진 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.6
연구목적: 정신보건법에 근거하여 매월 정기적으로 개최된 충청북도 정신보건심판위원회를 통하여 정신질환자의 계속입원치료 청구 심사의 현황과 문제점을 파악하고 개선사항을 지적함으로써 정신질환자의 효율적인 관리를 유도하고 인권남용의 여지를 차단하고자 한다. 방 법: 충청북도 내의 정신의료기관에서 계속입원치료 심사청구서 및 진단서, 보호의무자의 동의서 등을 제출한 정신질환자들을 대상으로 계속입원치료 청구에 대한 승인 여부를 매달 정기적으로 심사하였다. 1년 6개월여동안 심사한 자료를 정리하여 진단 및 보호의무자, 의료보장별 특성과 불승인률 등을 분석하였다. 결 과: 충청북도 심판위원회에 계속입원치료를 청구한 정신질환자는 21차례의 위원회 동안 총 7,981명이었으며, 진단별로 정신분열병은 80.9%, 알콜중독은 8.1%, 치매 등 기타는 11.0%이었다. 또한 보호의무자는 시장 또는 군수가 29.8%, 부모가 26.9%, 형제가 26.1%, 부부가 6.3%, 자녀가 5.9%, 기타가 5.0%로 나타났으며, 의료보장은 의료보호가 73.0%, 의료보험이 27.0%이었다. 이들 중에서 196명이 계속입원치료를 불승인받아서 전체 불승인률은 2.46%이었으며 정신분열병과 알콜중독 환자의 진단별 불승인률은 각각 0.73%와 17.6%이었다. 결 론: 정신과 병상의 대부분이 장기적으로 입원하는 만성 정신질환자들로 구성되어 있어서 이들에 대한 별도의 대책이 시급하다. 또한 계속입원치료가 불승인되어 퇴원한 환자들의 재활 및 사회적응을 위한 사회적 지지 체계가 부족하며, 특히 환자의 인권보호를 위한 구체적인 기준 등이 필요하다. Objectives: This study was to develop effective managements and to avoid the abuse of human rights in mentally-ill patients. The Mental Health Judgement Board of Chungchongbuk-do province has been held monthly since August, 1997 according to the Mental Health Act. In this study, the procedures and the problems of judging continuing hospitalization of chronic mentally-ill patients were reviewed. Methods: The mentally-ill patients who submitted the request for continuing hospitalization with the certificate of charged doctor and the agreement of caregiver were reviewed by the Mental Health Judgement Board of Chungchongbuk-do province. The analysis of the diagnoses, caregivers, medical care systems, and rejection rate for the patients were done. Results: Total mumber of mentally-ill patients who requested for continuing hospitalization were 7,981 from twenty-one monthly meetings. The diagnostic distributions were 80.9% for schizophrenic patients, 8.1% for alcoholics and 11.0% for others including dementia. As for the caretakers, the rate of majors was 29.8%, parents 26.9%, sibling 26.1%, spouse 6.3%, offspring 5.9%, and others 5.0%. And 73.0% of the patients were on Medicaid and 27.0% were insured. The patients who got the rejection for continuing hospitalization were 196 at the rate of 2.46%. And the rejection rates of schIzophrenic and alcoholic patients were 0.73% and 17.6%, respectively. Conclusions: New policies for decreasing longterm hospitalization of chronic mentally-ill patients are required. And the social support systems for psychiatric rehabilitation and readjustment are presently insufficient for the already discharged mentally-ill. Moreover, the practical guidelines for human rights of patients remains to be suggested.
김종태,배두원,김만일,정교철 7개 국립대학교 환경연구논문집 공동발행 위원회 2005 공업기술연구 Vol.5 No.-
To study the relations of underground/surface-water exhaustion and excessive pumping, we have analyzed river, geological characteristics, recharge rate of rainfall and underground-water level. The ground water recharge rate from the SCS-CN analysis is 8.4%, and the recharge is computed in 6.4111 x 10^(5)㎥/y. This results mean that a big drawdown in observation holes may be occurred by excessive pumping. From in-situ hydraulic conductivity test, hydraulic conductivity in basement of the study area is calculated in 7.996 x 10^(-6)-2.067 x 10^(-6)m/sec. The underground/surface-water in the study area with small underground-water recharge rate will be exhausted by long time pumping.
Platinum nanoparticles prepared by a plasma-chemical reduction method
Koo, Il Gyo,Lee, Myoung Seok,Shim, Jae Hee,Ahn, Jae Hwan,Lee, Woong Moo Royal Society of Chemistry 2005 Journal of materials chemistry Vol.15 No.38
<P>Platinum nanoparticles were prepared by reducing H<SUB>2</SUB>PtCl<SUB>6</SUB> dissolved in water with the help of hydrogen plasma generated right above the aqueous solution, thus the small surface area of the solution contacting the plasma becomes the active reaction zone. This simple method to fabricate the nanoparticles did not necessitate use of reducing agents and polymer protective materials. The average particle size was around 2 nm with the solution temperature set at 10 °C.</P> <P>Graphic Abstract</P><P>Platinum nanoparticles were prepared by reducing H<SUB>2</SUB>PtCl<SUB>6</SUB> dissolved in water with the help of hydrogen plasma generated right above the aqueous solution. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b508420b'> </P>
Koo, Il Gyo,Cho, Jin Hoon,Lee, Woong Moo WILEY-VCH Verlag 2008 Plasma Processes and Polymers Vol.5 No.2
<P>The effect of the water level in a He working gas on the uniformity of the atmospheric pressure plasmas was investigated using emission spectroscopy. The 13.56 MHz rf-powered dielectric barrier discharges were generated using He gas, in which water vapor of various concentrations was added. Electron density of the discharge medium determined using the emission spectra clearly demonstrated that the humidity level affects the electron density and the uniformity of the plasma.</P><P> <img src='wiley_img/16128850-2008-5-2-PPAP200700068-gra001.gif' alt='wiley_img/16128850-2008-5-2-PPAP200700068-gra001'> </P>