에칭법을 이용한 실리콘 웨이퍼 표면 근처에서의 금속 분순물의 정량

김영훈,정혜영,조효용,이보영,유학도,Kim, Young-Hoon,Chung, Hye-Young,Cho, Hyo-Yong,Lee, Bo-Young,Yoo, Hak-Do 대한화학회 2000 대한화학회지 Vol.44 No.3

The metal impurities in specific regions at near surface of silicon wafer were determined by constant depth etching·lt is possible to etch uniformly over the entire wafer surface by 1$\mu\textrm{m}$ depth with 5 mL of etching solution made up of HF and HNO$_3$ mixed by l:3 volume ratio. The microwave oven was used to evaporate the solution after etching. After spiking, The recoveries of Cu, Ni, Zn, Cr, Mg and K were found to be 99∼105%ted in polysilicon region and could be quantified by 1$\mu\textrm{m}$ depth.

CNDO / 2MO 이론에 의한 H2 및 CO 기체의 A - zeolite 의 α - cage 투과성에 대한 고찰

김영훈,김명철,김동현,허남호,김종택 ( Young Hoon Kim,Myung Chul Kim,Dong Hyun Kim,Nam Ho Hoe,Jong Taik Kim ) 한국화학공학회 1993 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.31 No.3

Penetration of gas molecules through the α-cage of A-zeolite was studied theoretically. Total potential energies of the gas penetrating the system were calculated by means of CNDO/2 MO theory with the 8-R window model. Potential curves for the Na^+-8R with H₂ and CO molecules indicated high possibilities of their penetration and those for the K^+- and Ca^(2+)-8R illustrated the difficulties of their going through the plane. Cation position was flexible as spring to allow intruding molecules but required certain amount of activation energies according to the cation gas molecule interaction. The dislocation of the cations within the 8-R window due to the foreign gas penetration were visualized by the variation of distance between cation to O_(16) atom and the extent of the dislocation of cations and their characteristics were very dependent on the constituents of the gas molecule.

Articulation Patterns of Children who Developed Articulation Disorders Associated with Ankyloglossia

박선영(Sun-Young Park),심선희(Sun-Hee Shim),장은실(Eun-Sil Jang),엄태훈(Tae-Hoon Eom),김영훈(Young-Hoon Kim),이순주(Soon-Ju Lee) 대한소아신경학회 2013 대한소아신경학회지 Vol.21 No.3

목 적 : 설소대와 조음장애의 관련성과 설소대 환아에서 조음장애 유무를 감별하는데 필요한 임상지침을 제시하기 위해 조음장애를 동반한 설소대 환아의 조음양상의 특징을 알아보고자 하였다. 방 법: 2002년 1월부터 2012년 12월까지 의정부성모병원 소아청소년과 외래를 방문한 124명의 환아 중 설소대를 제외한 다른 조음기관의 해부학적 이상, 신경학적 질환이나 발달/언어지연을 가진 46명의 환아를 제외한 총 78명을 설소대 유무에 따라 각각 환자군 23명과 대조군 55명으로 나누어 그림자음검사를 통해 조음양상을 비교분석하였다. 결 과 : 두 군에서 조음오류를 보인 자음유형에 따라 집계한 각 환자수는 연구개비음의 경우에만 차이를 보였다. 하지만 자음유형에 따른 조음오류의 환자별 관찰빈도수의 총합은 양순파열음, 연구개파열음과 연구개비음에서 유의한 차이를 보였다. 조음오류의 변화유형에 따라 집계한 환자수는 두 군에서 차이를 보이지 않았다. 하지만 조음변화 유형에 따른 환자별 관찰빈도수의 총합은 환자군에서 전설음화와 마찰음화가 낮게 관찰되었고, 경음화와 격음화과 높게 관찰되었다. 결 론 : 본 연구를 통해 설소대를 동반한 조음장애 환아의 일부에서 해부학적 이상을 동반하지 않은 기능적 조음장애 환아와 구별되는 특징을 보이는 결과를 관찰할 수 있었지만, 이를 설소대를 동반한 모든 조음장애 환아로 일반화할 수는 없었다. 따라서 설소대와 조음장애의 관련성은 여전히 논란의 여지가 있으며, 또한 수술적 치료를 포함한 설소대 치료를 결정하는데 주의를 기울여야 할 것으로 사료된다. Purpose : We investigated articulation patterns in children with ankyloglossia who developed articulation disorders in order to determine the relationship between ankyloglossia and articulation disorders, and to clinically detect children who have articulation disorders associated with ankyloglossia. Methods : The participants of this study were 23 children with articulation disorders that accompanied ankyloglossia and 55 controls with functional articulation disorders independent of anatomical problems, who were admitted to our hospital from January 1, 2002 to December 31, 2012. All children underwent speech-language pathologic evaluation using the Picture Consonant Articulation Test (PCAT; Young-Tae Kim, 1994). We retrospectively compared collected data between the subject and control groups using Fisher's exact test and odds ratio tests with a 95% confidential interval for categorical variables and the independent Mann-Whitney U-test for continuous variables. Results : The number of patients with articulation errors in the velar nasal was lower significantly only in the subject group (P =0.038). The total numbers of articulation errors in the bilabial plosive, velar plosive and velar nasal also were lower (P=0.007, P˂0.001, and P=0.034, respectively). There were no differences in the numbers of patients with articulation errors according to phonological changes between the two groups. However, the total numbers of fronting and frication were lower in the subject group (both P˂0.001), but the total numbers of plosivation and tensing were higher (P =0.002 and P =0.008, respectively). Conclusion : This study showed that the relationship between an articulation disorder and ankyloglossia is doubtful, although some results suggest that ankyloglossia may cause articulation errors only in certain individuals. Therefore, clinicians should be careful when determining the relationship between ankyloglossia and articulation disorders and use caution when making a treatment decision.

의료기관 인증평가의 성과와 향후 발전방안

김영훈,Kim, Young Hoon 한국의료질향상학회 2011 한국의료질향상학회지 Vol.17 No.1

고강도 이온질화 기어의 개발

김영훈,선철곤,김한군 ( Young Hoon Kim,Cheol-Gon Sun,Han Goon Kim ) 한국열처리공학회 1994 열처리공학회지 Vol.7 No.3

The heat treatment charaterristic of SCM 440 and B 16 steels has been investigated in various condition(A, B and C) to the effect of heat treatment on mechanical properties, and the following results were obtained 1. We are obtained a good nitriding characteristic in bainitic structure than other heat treatment cycle in our experiment 2. Fatigue characteristic has shown in order of B>C>A condition as heat treatment cycle 3. The effective hardening depth and fatigue characteristic has been excellented in B 16 than SCM 440 after the nitriding and Q. T for B and C condition 4. Nitriding depth has been increased in addition of Cr, V and the nitriding efficiency is increased as easiness of banite formation to wide range of cooling rate by addition of Mo 5. The depth of compound layer in parallel surface, notched slop plane and notched bottom has been varied to the nitriding depth of 5, 4 and 3μ in relatively uniform pattern after 10h nitriding treatment for SCM 440 into A condition

필리핀 스페인 식민지 양식 바하이 나 바토(Bahay na bato)의 버내큘러 건축 특성에 관한 연구

김영훈,임수영,Kim, Young-Hoon,Lim, Sooyoung 한국생태환경건축학회 2013 한국생태환경건축학회 논문집 Vol.13 No.4

Philippines, having the unique combination between its traditional and vernacular culture and European culture during colonization by Spain over three hundred years, shows the variations of style and scale in domestic architectures. Bahay na bato, one of the typical house of recent stone house in Philippines, has been completed referring traditional bahay kubo and Spanish stone built house, adapting vernacular principles in traditional house and new Spanish culture and life styles. Especially, vernacular for climates, earthquakes, social and cultural conditions, environment and materials in traditional bahay kubo still alive in bahay na bato mingled with spanish architectural technology and culture. This study place emphasis on the vernacular characteristics in bahay na bato by considering the climate control method in traditional house and Spanish influences on Philippines house.

약물상호작용 : 기분안정제와 항불안제

김영훈,이정구,Kim, Young Hoon,Rhee, Jung Goo 대한생물정신의학회 2000 생물정신의학 Vol.7 No.1

Pharmacotherapy of bipolar disorder is a rapidly evolving field. Mood stabilizers and anticonvulsants have varying biochemical profiles which may predispose them to different adverse effects and drug-drug interactions. Several of the new anticonvulsants appear less likely to have the problems with drug-drug interaction. To provide more effective combination pharmacotherapies, clinicians should be allowed to anticipate and avoid pharmacokinetic and pharmacodynamic drug-drug interactions. We reviewed the role of cytochrome P450 isozymes in the metabolism of the drugs and their interactions. The drug-drug interactions of several classes of drugs which used as mood stabilizers and new anticonvulsants, some of which may have psychotropic profiles, are discussed mainly in this article. Finally, potential pharmacokinetic interactions between the benzodiazepines and other coadministered drugs are discussed briefly.

헬리컬 핀 구조를 가진 LED 조명용 히트싱크의 열 특성

김영훈,임해동,오범환,Kim, Young-Hoon,Yim, Hae-Dong,O, Beom-Hoan 한국광학회 2014 한국광학회지 Vol.25 No.6

In this paper, we design a helical fin structure for the heat sink for a high-power LED lighting module, and analyze its thermal properties. By means of the helical fin structure, we can obtain about 14% larger surface area for the limited volume and it can decrease the LED chip temperature by about 12%. Because this helical fin heat sink has 15% less total volume than a conventional one, we can also expect to reduce the production cost due to these structural properties.

공동주택 주민복지시설의 활성화를 위한 사전 타당성 평가요인 분석

김영훈,강현욱,원유만,김용수,Kim, Young-Hoon,Kang, Hyun-Wook,Won, Yoo-Man,Kim, Yong-Su 한국건설관리학회 2011 한국건설관리학회 논문집 Vol.12 No.6

An Analysis on the Pre-Feasibility Evaluation Factors of Activation for Welfare Facilities for the Residents in Apartment Building. The adapted research method of selected case five apartment building in D new town and carried out questionnaire survey to residents and user for draw items of feasibility evaluation. Drew items of feasibility evaluation classify as Plan section, Design section, and Operation section and evaluate the weight of each section utilizing analytical hierarchy process (AHP). Depending on the purpose and methods. The results of this study are as follows: Such as Plan section, Composition of Program Facility, User Charge Survey, Arrangement of Program Room were analyzed highest. Such as Design section, Arrangement of Program Room, Circulation planning, Educational Equipment were analyzed highest. And such as Operation section, Operation costs, Operation Plan, Review of Program Facility were analyzed highest.

정신질환에 있어서의 신경펩타이드 연구 - Endorphin과 cholecystokinin을 중심으로 -

김영훈,심주철,Kim, Young Hoon,Shim, Joo Chul 대한생물정신의학회 1998 생물정신의학 Vol.5 No.1

We provide the reader with a brief introduction to the neurobiology of neuropeptides. Several comprehensive reviews of the distribution and neurochemical, neurophysiological, neuropharmacological and behavioral effects of the major neuropeptides have recently appeared. In reviews of the large number of neuropeptides in brain and their occurance in brain regions thought to be involved in the pathogenesis of major psychiatric disorders, investigators have sought to determine whether alternations in neuropeptide systems are associated with schizophrenia, mood disorders, anxiety disorders, alcoholism and neurodegenerative disease. There is no longer any doubt that neuropeptide-containing neurons are altered in several neuropsychiatric disorders. One of the factors that has hindered neuropeptide research to a considerable extent is the lack of pharmacological agents that specifically alter the synaptic availability of neuropeptides. With the exception of naloxone and naltrexone, the opiate-receptor antagonists, there are few available neuropeptide- receptor antagonists. Two independent classes of neuropeptide-receptor antagonists has been expected to be clinically useful. Naltrexone, a potent ${\mu}$-receptor antagonist, has been used successfully to reduce the need for alcohol consumption. And cholecycstokinin antagonists are now in development as a new class of anxiolytics, which would be expected to be free from tolerance and physical dependence and lack of sedation. In this review, we deal with these two kinds of neuropeptide system, the opioid system and cholesystokinins in the brain. The role of opioid systems in the reinforcement after alcohol consumtion and that of cholesystokinins in the pathogenesis of anxiety will be discussed briefly. As we know, the future for neuropeptides in psychiatry remains bright indeed.