도시(都市)에 있어서의 외국인(外國人)을 상대로 한 위안부(慰安婦)에 대한 성병관리(性病管理)

김영식,Kim, Young-Shik 대한예방의학회 1974 Journal of Preventive Medicine and Public Health Vol.7 No.2

This study was carried out to contribute to the control of Venereal diseases amnog prostitutes living aroung US army camps in Daegu area. The status of those who registrated in our Bongdeok Venereal Diseases Clinic was observed during a year from October 1, 1973 to September 31, 1974. Most of them were playmates of foreign soldiers. Forty eight percent of the total 241 were 20 to 24 years in age. About 70 percent were under elementary school level in educational background. The reason for prostitution was hard living and economic problems in about 94 percent of the cases studied. The cases studied within one year from the present time were 104, 43.3 percent. Although the full number of monthly vistits in eight or nine (Two times a week), the monthly mean was found to be 5.5. The result of cardiolipin test was 4.6 percent positive and 9.3 percent, false positive. Gram negative diplococci was found to be 4.3 percent, pus cell, 49 percent and staphylocci 18.1 percent. The patients were chiefly cured by ampicillin and kanamycin, although procain penicillin was also used. More control mathods must be introduced and promoted along with tracing methods and cultures for gonorrhea.

파로부터 Chitinase 의 정제 및 성질

김영식,이미연,박영목 ( Yeong Shik Kim,Mi Youn Lee,Young Mok Park ) 생화학분자생물학회 1992 BMB Reports Vol.25 No.2

Chitinase (EC 3.2.1.14) was purified from the mature tissue of green onion by ammonium sulfate precipitation followed by affinity chromatography on a regenerated chitin and a Sephacryl HR-100. The purified enzyme gave a single band on polyacrylamide slab gel electrophoresis and its molecular weight was determined to be 35,000 Da using SDS-PAGE and HPLC-GPC. The isoelectric points of the enzyme were 3.5 and 7.2. The purified enzyme was stable on incubation at 50℃ for up to 20 min. Most of metal ions did not affect the activity significantly except that Ag^+ and Hg^(2+) ions inhibited the enzyme activity at 10 mM concentration. HPLC analysis of the initial products from the digestion of colloidal chitin and chitooligosaccharides indicated that chitinase was endolytic in action, yielding oligomers from the dimer to higher oligosaccharides.

Influence of Irrigation and Cultivar on Thiocyanate Ion Content in Radish and Chinese Cabbage

Kim Young Shik(金永植),Kim Yong Chul(金鏞喆),Park Kuen Woo(朴權瑀) 한국원예학회 1983 Horticulture, Environment, and Biotechnology Vol.24 No.1

신경회로망 기반 자동 동조 뉴로-퍼지 PID 제어기 설계

김영식(Kim, Young-Shik),이창구(Lee, Chang-Goo) 한국산학기술학회 2006 한국산학기술학회논문지 Vol.7 No.5

본 논문에서는 기존의 PID 제어기와 퍼지 제어기의 특성을 공통으로 갖는 새로운 형태의 신경회로망 기반 자동 동조 뉴로-퍼지 PID제어기를 제안하였다. 제안된 제어기는 퍼지의 선형성을 이용하여 퍼지 PID 제어기의 퍼지 연산부를 간략화 시키고 일반 PID 제어기와 유사한 입출력 특성을 갖도록 하였으며 비선형 성분 보상을 위하여 제어기 출력에 가장 큰 영향을 미치는 출력측 스케일 계수를 단일 신경 회로망 구조로 변경하고 PID 제어기 구조를 유지 하게 하였다. 또한 단일 신경 회로망 구조를 이용함으로써 신경회로망의 초기 연결강도와 계산량에 대한 문제점을 해결하고 오차의 부호 정보에 따라 학습계수를 변화시키는 가변 학습계수 역전파 알고리즘을 사용하여 오버 슈트가 작으면서도 빠른 수렴 속도를 갖도록 하였다. 제안된 제어기를 비선형성이 강한 시스템으로 알려진 자기 부양(magnetic levitation) 시스템에 실제 적용하여 본 논문에서 제안한 제어기의 우수한 성능을 확인하였다. In this paper described an auto tuning neuro-fuzzy PID controller based neural network. The PID type controller has been widely used in industrial application due to its simply control structure, easy of design, and inexpensive cost. However, control performance of the PID type controller suffers greatly from high uncertainty and nonlinearity of the system, large disturbances and so on. In this paper will design to take advantage of neural network fuzzy theory and pid controller auto tuning technique. The value of initial scaling factors of the proposed controller were determined on the basis of the conventional PID controller parameters tuning methods and then they were adjusted by using neural network control techniques. This controller simple structure and computational complexity are less, and also application is easy and performance is excellent in system that is strong and has nonlinearity to system dynamic behaviour change or disturbance. Finally, the proposed auto tuning neuro-fuzzy controller is applied to magnetic levitation. Simulation results demonstrated that the control performance of the proposed controller is better than that of the conventional controller.

6-Methylquinolinium Dichromate를 이용한 치환 벤질 알코올류의 산화반응 속도

김영식(Kim, Young-Shik),박영조(Park, Young-Cho) 한국산학기술학회 2011 한국산학기술학회논문지 Vol.12 No.12

H₂O 용매 하에서 6-methylquinoline 과 chromium trioxide의 반응을 통하여 6-methylquinolinium dichromate [(C10H9NH)2Cr2O7]를 합성하여, 적외선분광광도법(IR), 유도결합 플라즈마(ICP) 등으로 구조를 확인하였다. 여러 가지 용매 하에서 6-methylquinolinium dichromate를 이용하여 벤질 알코올의 산화반응을 측정한 결과 유전상수(ε) 값이 큰 용매 순서인 시클로헥센 < 클로로포름 < 아세톤 < N,N-디메틸포름아미드 용매 하에서 높은 산화반응성을 보였다. 산 촉매(H₂SO₄)를 이용한 DMF 용매 하에서 6-methylquinolinium dichromat는 벤질 알코올과 그의 유도체들(p-OCH3, m-CH3, H, m-OCH3, m-Cl, m-NO₂)을 효과적으로 산화시켰다. 그리고 전자받개 그룹들은 반응속도가 감소한 반면에 전자주개 치환체들은 반응속도를 증가시켰다. 또한 Hammett 반응상수(ρ) 값은 -0.67(303K) 이였다. 그러므로 본 실험에 서 알코올의 산화반응 과정은 속도결정단계에서 수소화 전이가 일어나는 메카니즘임을 알 수 있었다. 6-Methylquinolinium dichromate[(C10H9NH)2Cr2O7] was synthesized by the reaction of 6-methylquinoline with chromium trioxide in H₂O, and characterized by IR, ICP. The oxidation of benzyl alcohol using 6-methylquinolinium dichromate in various solvents showed that the reactivity increased with the increase of the dielectric constant(ε), in the order: cyclohexene < chloroform < acetone < N,N- dimethylformamide. In the presence of hydrochloric acid(H₂SO₄ solution), 6-methylquinolinium dichromate oxidized benzyl alcohol and its derivatives(p-OCH3, m-CH3, H, m-OCH3, m-Cl, m-NO₂) smoothly in DMF. Electron-donating substituents accelerated the reaction, whereas electron acceptor groups retarded the reaction. The Hammett reaction constant(ρ) was -0.67(303K). The observed experimental data was used to rationalize the hydride ion transfer in the rate-determining step.

잎들깨의 水耕栽培時 잎 生長패턴에 관한 硏究

김영식(Kim Young-Shik) 한국원예학회 1993 한국원예학회 학술발표요지 Vol.11 No.2

전기신호를 이용한 수경재배의 급배액 관리법의 가능성

김영식 ( Young Shik Kim ) 상명대학교 산업과학연구소 2003 産業科學硏究 Vol.- No.14

FGI조사를 통한 소형 복합오븐 개발 연구

김영식(Kim, Young-Shik),홍왼수(Hong, Wan-Soo) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.6

본 연구는 쌀가루를 활용한 조리 경험과 오븐을 사용해 본 경험이 있는 14명의 외식 및 식품 관련 종사자 와 전업주부를 대상으로 포커스 그룹 인터뷰를 시행하여 쌀가루 조리가 편리한 가정·외식용 복합오븐 개발에 필요한 자료를 수집하였다. 조사 결과, 대체로 쌀가루의 홍보부족과 다양하지 못한 메뉴, 그리고 상품화된 오븐의 사용법이 복잡하여 자주 사용하지 못하고 있는 것으로 나타났다. 본 연구에서는 분석된 자료를 바탕으로 가정 및 외식업체에 서 사용하기 간편한 소형 복합오븐의 외형 디자인, 사용자 경험, 기능적 특성, 색상에 관한 개발안을 제시하였다. 이 를 토대로 디자인 출원(30-2012-0016256) 및 최종제품을 실제로 상품화하여 연구의 성과지표를 높였다는데 연구의 의의가 있다. This study performed a focus group interview(14 people) on food-service staffs, dieticians, and housewives to develop a small multi-function oven for rice flour. The interviewees have experienced rice flour cooking and oven at home or food-service business. The interviewees have not used commercial ovens on a daily basis for several reasons, such as the absence of understanding rice flour, lack of various recipes with rice flour and inconvenience of the oven. This study suggests of design, user experience, functional characteristics, color and so on relating to a small multi-function oven to the customers.

RMAC를 적용한 어뢰형 무인잠수정(ISiMi)의 수평면 경로추종 제어

김영식(Young-Shik Kim),이지홍(Jihong Lee),김진하(Jin-Ha Kim),전봉환(Bong-Huan Jun),이판묵(Pan-Mook Lee) 한국해양공학회 2009 韓國海洋工學會誌 Vol.23 No.6

This paper considers the path tracking problem in a horizontal plane for underactuated (or non-holonomic) autonomous underwater vehicles (AUVs). Underwater mapping has been an important mission for AUVs. Recently, underwater docking has also become a main research field of AUVs. These kinds of missions basically require accurate attitude and trajectory control performance. However, the non-holonomic problem should be solved to achieve accurate path tracking for the torpedo-type of AUVs. In this paper, resolved motion and acceleration control (RMAC) is considered as a path tracking controller for an underactuated torpedo-shaped AUV, ISiMi. A set of numerical simulations is carried out to illustrate the effectiveness of the proposed RMAC scheme, and experimental data with ISiMi100 and discussions are presented.

원예 공정묘 생장 조절실을 위한 인터넷 기반의 정보시스템 구성

김영식 ( Young Shik Kim ),조태경 ( Tae Kyung Cho ),박병수 ( Byoung Soo Park ) 상명대학교 산업과학연구소 2004 産業科學硏究 Vol.- No.15