한양대학교 (안산 캠퍼스) 주변 담수호의 수질분석

김용건,원호식,경진범,김동국,홍태기 漢陽大學校 環境科學硏究所 2000 環境科學論文集 Vol.21 No.-

본 연구의 목적은 한양대학교(안산캠퍼스) 주변 호수들의 수질과 물의 오염 상태를 조사하기 위해서이다. 수질은 물의 온도, pH 화학적 산소 요구량(CODMn), 총 질소(T-N), 총 인(T-P), 부유물질(SS), 그리고 중금속(Zn, Cd, Pb, Cu, As, Cr(VI), Hg)을 측정했다. 호수들의 수질등급은 환경처에 의해 평가된 등급V보다 더 낮았다. 한양대학교(안산캠퍼스) 주변의 모든 저수지들은 생활폐수, 그리고 산업폐수의 유입으로 이미 심각하게 오염되어 있다. 그러나 중금속의 오염은 관찰되지 않았다. 만약 폐수의 처리가 확립되지 않는다면 한양대학교 주변 저수지들의 수질은 더욱악화될것으로 사료된다. The objective of this study was to investigate the water quality and status of water pollution in the lakes around Hanyang University (Ansan campus). Water quality was determined by monitoring water temperature, pH, chemical oxygen demand(CODMn), total nitrogen (T-N), total Phosphorus (T-P), suspended solids (SS), heavy metals (Zn, Cd, Pb, Cu, As, Cr(VI) and Hg). The level of water quality of lakes was lower than the level V estimated by the Enviroment Ministry. All of the reserviors around Hanyang University (Ansan campus) had been already seriously polluted by inflow of wastewater from residents, animal husbandries and industries. However, heavy metal pollution was not observed. It is recommended to establish plans for water quality improvement for the reserviors around Hanyang University before it gets worse.

대유행 인플루엔자(H1N1 2009)에서 신속항원검사 양성률

김영근,김효열,어영,전진경 대한감염학회 2010 감염과 화학요법 Vol.42 No.2

There are few datas on the diagnostic accuracy of rapid antigen test for pandemic influenza A (H1N1). We evaluated the performance of rapid antigen test for the diagnosis of pandemic influenza A (H1N1). During the period from 21 August 2009 to 20 September 2009, 451 patients with influenza-like symptom underwent the rapid antigen test (SD Influenza Antigen, Standard Diagnostics, Yongin, Korea) and real-time reverse transcriptase-polymerase chain reaction (rRT-PCR) at the same time. Rapid antigen test results were positive for 65 of 90 patients with the positive results for pandemic influenza A (H1N1) on rRT-PCR assay. The sensitivity of the rapid antigen test was 72.2% (95% CI, 61.8-81.1) and the specificity was 100% (95% CI, 99.0-100). The positive predictive value was 100% (95% CI, 94.5-100) and negative predictive value was 93.5% (95% CI, 90.6-95.8).

산 처리가 상아질 접착에 미치는 영향

김영경,김성교,박진훈 大韓齒科保存學會 1993 Restorative Dentistry & Endodontics Vol.18 No.1

전이층에 면진을 갖는 구조물의 내진성능평가에 관한 연구

김진상,이경민 인제대학교 2010 仁濟論叢 Vol.25 No.1

This study is concerned about seismic performance evaluation of seismically isolated structure in transfer story, First, a principle of aseismatic structure and seismically isolated structure is presented. There is a transfer story to transfer a load of superstructure to an understructure in case of High-rise complex building for residence and commerce, This study is composed of two parts, Firstly, by comparing the dynamic characteristics of seismically isolated structure and non-seismically isolated structure such as story displacement, strain, period, and base story shear, the effects of isolation system are presented, and lastly, the methods to design structural system more effectively by using isolation system are suggested.

a-Bromo-para Toluic Acid의 친핵치환반응에 대한 연구

김상준,경진범 한양대학교 이학기술연구소 2002 이학기술연구지 Vol.5 No.-

The specific rates for the solvolyses of α-bromo-r-toluic acid in a wide range of solvents have been measured by using the titrimetric method at 45.0 f. From the obtained kinetic data, the specific rates were applied to the extended Grunwald-Winstein equation usingthe values for N_(T) and Y_(Br). In addition to the kinetic study, gas chromatography was used to identify the products as well as to determine their relative percentages. Also, the values of activation enthalpy and activation entropy for the solvolyses of a-bromo-p-toluic acid were calculated from the rate constants measured at various temperatures. From those results, it could be estimated that the solvolysis of o -bromo-p-toluic acid proceeded through a bimolecular pathway which prefers a bond formation(associative ,S_(N)2) in all the solvents. 여러 이성분 혼합 용매 내에서 a-bromo-p-toluic acid의 가용매 분해 반응에 대한 반응 속도상수를 45.0℃에서 적정법을 이용하여 측정하였다. 얻어진 반응 속도 데이터를 이용하여 extended Grunwald-Winstein식에 적용하였다. GC 분석법을 이용하여 a-bromo-p-toluic acid 반응 생성물들을 확인하고, 그들의 상대적인 퍼센트를 결정하였따. 또한 a-bromo-p-toluic acid의 가용매 분해 반응에 대한 활성화 엔탈피와 활성화 엔트로피를 반응 속도 상수로부터 계산하였다. 이러한 실험 결과로부터 a-bromo-p-toluic acid는 모든 용매 내에서 결합 형성이 우선하는 이분자 반응으로 추정됨을 알 수 있었다.

混合溶媒內에서 p-Nitrobenzyl Chloroformate의 아실화 反應에 관한 硏究

김정성,김성주,경진범 대구대학교 기초과학연구소 1997 基礎科學硏究 Vol.14 No.1

The Kinetics of the solvolysis of p-nitrobenzyl chloroformate in hydroxylic alcohol solvents and the methanolysis of this substrate in acetone have been studied by titrimetric method at several temperatures and over a wide range of methanol concentration. The values of the activation parameter were determined from rate constants. The products of this substrate were analyzed by GC in aqueous ethanol. The mechanisms of these reactions were also estimated from the extended Grunwald-Winstein equation and the isotopic effects in methanol. From these results, it could be estimated that the solvolysis of p-nitrobenzyl chloroformate have bimolecular addition-elimination mechanism. And the reaction of this substrate with methanol in acetone is mixed second- and third- order reactions for over-all reaction. The results are consistent with a bimolecular reaction, and are explained by tetrahedral intermediate mechanism.

인구 배아 연구의 윤리적 고찰

김진경 釜山大學校 師範大學 1999 교사교육연구 Vol.41 No.-

A dramatic development of biotechnology in the 20th century has greatly impa and is greatly impacting the whole order of the ecosystem including human life. Under this circumstance, studies of human embryo are emerging as a very controversial issue around the world. They are the matter of life value whose treatment is permitted or not permitted according to whether human embryo is considered as a living creature or not. With no clear determination of a moral position of human embryo, currently, the number of countries which permit studying the embryo, albeit limitedly, is increasing for lots of expected useful and beneficial results. Human embryo is certainly a living creature. It is our obligation to care for the creature as a moral being, although it may not be regarded as a moral actor. Such dignified living creatures must not be used as means for other purposes for any other reasons. In this sense, human embryo must not be utilized just for a number of social benefits which would be brought by its studies. Thus we are required to seriously discuss the life value of human embryo before determining whether studies of the embryo should be permitted or not. We could have more careful and responsible attitudes about the studies if we recognize the dignity of life and a moral position of human embryo.

Elizabeth Bennet의 정신적 성장을 위한 Pride and Prejudice의 구도

김경진 건국대학교 1994 대학원 학술논문집 Vol.38 No.-

The heroines of Jane Austen´s novels are all young woman of marriageable age who experience difficulties in love and learn valuable lessons about human nature as they gain in self-knowledge: each novel ends happily with the heroine´s marriage to a man she truly loves in a union that is both a reward and measure of her growth. This thesis aims to examine how Austen´s plans to take her heroine through a course of psychological reformation require a certain event at a certain time so that the heroine´s attitude will be changed in Pride and Prejudice. In Pride and Prejudice, Elizabeth Bennet finally surrenders her ironic, superior detachment by marrying Darcy. Austen´s psychological scheme requires four steps. Elizabeth´s first step toward Pemberley is her rejection of Mr. Collins. The second episode is Elizabeth´s discovering the truth about Wickham. The third is the perverse meeting of Elizabeth and Darcy at Pemberley and the last, mortification about Lydia´s Sudden and unexpected elopement with Wickham Austen systematically elucidates, little by little, the psychological development of her heroine from, and toward, a definite and preconceived point. Indeed, her greatness partly lies here, in the scheme . The plan behind the novels therefore seems to me the essential feature of Austen´s art. All that is complex, subtle and wonderful in the novels with this, and never quite obliterates it. Thus, the thesis focuses on how Austen´s plan takes her heroine through a course of psychological reformation.

뇌수술 시 과호흡과 만니톨의 투여가 뇌혈류와 뇌산소대사에 미치는 영향

김지헌,김경식,문봉기,조경기,신용삼,이영주,김진수 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.43 No.4

Background: There are therapies to lower intracranial pressure (ICP) including head elevation, hyperventilation, diuretics injection, intravenous mannitol, hypothermia, cerebrospinal fluid drainage, and cerebral resection in neurosurgical patients. However in recent reports, hyperventilation followed by mannitol administration may lead to cerebral ischemia. Therefore, we investigated the effect of 0.5-1.0 g/kg mannitol administration on jugular venous oxygen saturation (SjVO_2) and cerebral arterial-jugular venous oxygen content difference (AVDO_2) at PaCO_2 25-30 mmHg and 35-40 mmHg in patients undergoing neurosurgery. Methods: we studied 17 patients undergoing neurosurgery in the Ajou University Hospital. Anesthesia was induced with fentanyl, midazolam, thiopental, and vecuronium, and maintained with )_2-Air-Isoflorane, a continuous infusion of fentanyl, and vecuronium. Patients were divided into two groups. Group 1 (n = 10) which is PaCO_2 25-30 mmHg and Group 2 (n = 7) which is PaCO_2 35-40 mmHg by controlling ventilator. Measurements of SjVO_2 and AVDO_2 in following time intervals: Ⅰ = preinjection of mannitol, Ⅱ = postinjection 20 minutes of mannitol, Ⅲ = postinjection 40 minutes of mannitol were obtainde for each group. 0.5-1.0 g/kg mannitol was administered intravenously just at duramater opening. Results: Hemodynamics and hematologics were not significantly different among the two groups. SjVO_2 of each group are as follows; Group 1; Ⅰ (70.3 ± 8.1%), Ⅱ (66.3 ± 6.9%), Ⅲ (69.1 ± 7.9%) and Group 2; Ⅰ (78.6 ± 7.4%), Ⅱ (75.1 ± 8.1%), Ⅲ (76.0 ± 11.2%), Hyperventilation significantly decreased SjVO_2- AVDO_2 was not significantly different but SjVO_2 in Ⅱ was significantly decreased compared with Ⅰ and Ⅲ in Group 1 (20% patients). Conclusions: Mannitol produced a change of SjVO_2 during hyterventilation. Therefore, intravenous mannitol during hyperventilation should be given cautiously according to the patients status because it may cause cerebral ischemia in critical patients. (Korean J Anesthediol 2002; 43: 462~467)

Volunteer Frame and Volunteer Culture

김경동,김여진 이화여자대학교 사회과학연구소 2011 사회과학연구논총 Vol.25 No.-

With the abrupt and rapid social changes and repeated financial crises experienced in Korea, there is an increasing need for welfare support. Due to the still fragile social safety net established by the state, however, the role of civil society in providing supports in the form of voluntary action has become urgent. To promote volunteerism, it is proposed to inculcate what is known in psychology as ‘frame’ of mind and create volunteer culture equipped with volunteer frame. The frame of mind controls and censors human perceptions, cognition, decisions, and behavior, and ten different types of frames are discussed to demonstrate their utility in voluntary action movements. To activate frame into concrete voluntary actions, suggestions are made to build and strengthen institutional infrastructures and mechanism. Special attention is directed to various educational efforts, including the use of multimedia, in addition to formal schooling. 한국사회의 경제적 위기와 함께 사회복지의 욕구는 증가하였으나, 사회적 안정망 구축이 아직 충분하지 않은 현실에서 시민사회의 역할의 중요성이 부각되기 시작했다. 본 연구는 심리학의 ‘프레임(frame)’ 개념을 원용하여 자원봉사운동을 활성화하고 자원봉사문화를 조성하는 방법을 탐색하는 이론적 관점을 제시하고자 한다.