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.

울산광역시민의 불소배합세치제 사용률

김지영,이재화,박혜경,김은경,김진범 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.1

Fluoride-containing toothpaste is one of useful tools to apply fluoride for prevention of dental caries. The purpose of this study was to survey the user rate of fluoride-containing toothpaste at home for the oral health education of the use of fluoride-containing toothpaste. Questionnaires about the use of fluoride-containing toothpaste were distributed to the children of primary middle schools and adults in Buk-gu(Northern District) of Ulsan Metropolitan City, Korea. Collected questionnaires from 374 primary school children, 505 middle school children and 161 adults were analyzed. All collected date were analyzed using the SPSS program. The obtained results were as follows; 1. 36 brands of toothpaste were being used at home. 29 brands contained fluoride and 9 brands were the toothpaste for children. 2. Among total respondents, 97.4% used the fluoride-containing toothpaste. 3. The user rate of fluoride-containing toothpaste were 97.9% among elementary school children, 97.2% among middle school children and 96.9% among adults. There was no significant difference among groups. 4. Among respondents using fluoride-containing toothpaste, SMFP-containing toothpaste were used by 90.9% of subjects, NaF;9.9%, combination of SMFP and NaF;0.1%. 5. Only 33.0% of respondents correctly knew whether they really used the fluoride-containing toothpaste or not.

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.

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

반도체 광 증폭기를 광 스위칭 게이트로 이용한 광 셀 압축기 및 역압축기

김광수,박경태,엄진섭,정광원 강원대학교 정보통신연구소 2000 정보통신논문지 Vol.4 No.-

In this paper, we proposed a new type of optical cell compressor and decompressor, which are essential functional modules in TDM or TDM/WDM hybrid photonic ATM switching systems. The proposed structure drastically decreases hardware requried for implementation by using optical feedback loop for optical pulse delay. Also, it is possible to compress and decompress the large capacity of optical pulse stream just with multi-stage serial connection. We did the experiment of single stage 4 bit cell compression and proved availability of the proposed structure as an essential module for switching systems

디젤 매연여과장치용 금속 Foam 필터의 특성 분석

金鎭玄,李海喆,車京玉 明知大學校 産業技術硏究所 2007 産業技術硏究所論文集 Vol.26 No.-

As a material for a diesel particulate filter, metal foam shows better mechanical and thermal characteristics than ceramic. So the feasibility of metal foam filters were investigated in DPF(diesel particulate filter trap) system in this study. Three proto type DPFs using the pure nickel foam filter and nickel alloy(INCONEL 625) foam were tested. The characteristics of back pressure, PM mass and nano-particle reduction performance were compared with those with wall flow type filter at the various engine operation conditions. It was confirmed that metal foam filters have a possibility for the application in DPF system.

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.

삼성동 은행나무공원 조성계획

김도경,이진민,조용철 경희대학교 디자인연구원 2005 예술· 디자인학연구 Vol.7 No.2

The purpose of this study is to provide basic data for making, operating and managing good golf practice place. So, we surveyed selection variable by questionnaire and analyzed selection variable by SPSS Windows Version 11. This study will give us qualitative evelopment of golf practice environment. This paper concludes with following points. First, Main customers were prospective golfer and people(management, professionalist, housewife) who have time and money to spare in their fories, and they usually came there with their friend or colleague. Facilities and practice environment to improve golf ability were main factors when they select golf practice place. Main purpose of going to golf practice place was to develop their golf ability. Second, The survey on the overall selection factor reveals that there are a significant difference according to gender, educational level, golf career, using time of driving range, using frequency of driving range, practicing time, using frequency of golf course, using purpose of driving range. And female in leisure factor, finishing high school in leisure factor, under six month(golf career) in leisure factor, (using time) pm 4-7 in popularly factor, (using frequency) more than sixth a week in ability improvement factor and less than once a week in leisure factor, (practicing time) over 3 hour in ability improvement factor, (using frequency of golf course) more than sixth a month in ability improvement factor and one or second a month in leisure factor, (using purpose) control fatness in popularly factor appear high selection reason value. Third, we measured selection reason value and user satisfaction value, the results can be summarized as follows. In selection reason, it appeared that help to improve golf ability and to practice golf variable was the largest value and help to train approach shot variable was the second value, and moderate prices in charge was the lowest value. Through this point, we can guess that pitching course user think that pitching course has positive thing to improve golf ability and to practice golf. Through the whole value, we can guess that something to improve golf ability is the best one among the selection reasons of pitching practicing course rather than charge, distance, friendship, and overall user satisfaction value appeared positive value as 3.67.

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.

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.