「생명에 대한 사회의식조사」논평_김영복

김영복 서강대학교 생명문화연구소 1993 생명연구 Vol.1 No.-

교육 평가 모형의 인식론적 고찰

김영복 順天鄕大學校 人文科學硏究所 1997 순천향 인문과학논총 Vol.3 No.-

일부 여자대학생들의 음주실태와 관련요인

곽정옥,김영복 韓國學校保健學會 1997 韓國學校保健學會誌 Vol.10 No.2

In order to find associated factors with alcohol drinking among female students, a survey was conducted of 1,073 female students of a women's university in Seoul from the 22nd of May to the 18th of June,1995. The major results were as follows: 1. Among 1,073 respondents,13.8% of them were regular drinkers, 71.8% of them were social drinkers. the alcohol drinking rate of female students had significantly different depending on their field of study. The time of their first drink varied: 2. 14.8% in junior high school 30.2% in high school, 4.7% after high school, and 49.4% in college. 3. The major motivation to start drinking was 'social meeting' (45.4%),'curiosity'(12.6%), and 'releasing stress'(5.5%). 4. The favorite alcohol of drinkers was beer (62.2%), Soju (25.6%), whisky (1.4%), Makkori (0.2%).5. The frequency of alcohol drinking was 36,5% once a week 32.8% 2∼3 times per month. I5.7% more than twice a week and 8.4% once a month. 6. Among the respondents, 73.4% of them wanted a health education program about drinking. 7. The drinking of the father, mother, brother, sister, boy friend, girl friend had a statistically significant relation with the drinking of the respondents. 8. Meal regularity, balanced diet, smoking and knowledge of alcohol drinking had a statistically significant relation with the drinking of the respondents.9. A multiple logistic regression analysis showed that related factors for alcohol drinking were the following health status, balanced diet, father's drinking, sister's drinking, boy friend's drinking and smoking.

$H^$\infty$$ Gain-Scheduling 기법을 이용한 컨테이너 크레인의 흔들임 제어에 관한 연구

김영복,정용길,Kim, Yeong-Bok,Jeong, Yong-Gil 제어로봇시스템학회 2001 제어·로봇·시스템학회 논문지 Vol.7 No.7

The sway control problem of the pendulum motion of a container hanging on the trolly, which transports containers from a container ship to trucks, is considered in the paper. In the container crane control problem, suppressing the residual swing motion of the container at the end of acceleration, deceleration or the case of that the unexpected disturbance input exists is main issue. For this problem, in general, the trolley motion control strategy is introduced and applied. In this paper, we introduce and synthesize a new type of swing motion control system in which a small auxiliary mass is installed on the spreader. The actuator reacting against the auxiliary mall applies inertial control forces to the container to reduce the swing motion in the desired manner. In this paper, we apply the $H^$\infty$$ based gain-scheduling control technique to the anti-swing motion control system design problem of the controlled plant. In this control system, the controller dynamics are adjusted in real-time according to time-varying plant parameters. And the simulation result shows that the proposed control strategy is shown to be useful for the case of time-varying system and, robust to disturbances such as winds and initial sway motion.

방향타를 이용한 선박 횡동요 제어계 설계에 관한 연구

김영복,Kim, Yeong-Bok 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.2

In ship operation the consequency of roll motions can seriously degrade the performance of mechanical and personnel effectiveness. So many studies for the roll stabilization control system design have been performed and very good results have been achieved. In many studies, the stabilizing fins are used. Recently rudders, which have been extensively modified, have been used to exclusively to stabilize the roll. This paper examines the two-degree-of-freedom servosystem design technique to synthesize the yaw control system which achieves the course keeping object of the ship and the H$_{\infty}$ control approach to suppress the roll motion, respectively.

부가수질량 절점 분포 방법에 의한 전선진동해석

김영복,최문길,김태환 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6

The ship vibration analysis technique has been well set up by using FEM. The methods considering the hydrodynamic added mass and damping of the fluid surrounding a floating ship have been well developed, so that they can be calculated by using the commercial package FEM programs such as MSC/NASTRAN, ADINA and ANSYS. Especially, MSC/NASTRAN has the functions to consider the fluid in tanks(MFLUID) and to solve the Fluid-Structure Interaction(FSI) problem(DMAP). In this study, the new method to analyze the global ship vibration with considering the added masses distributed at the grid points on the wetted shell surface is introduced to. In the new method, the velocity potentials of the fluid surrounding a floating ship are calculated by using Boundary Element Method (BEM) to solve the Laplace equation with considering the boundary conditions, and the point masses are obtained by integrating the potentials at the points. Then, the global vibration analyses of the ship structure with distributed added masses on the wetted surface are carried out for an oil/chemical tanker. During the future sea trial, the global ship vibration will be measured and compared with the results by the new analysis method.

外因性電流가 고양이 齒槽骨의 cyclic nucleotides에 미치는 影響에 關한 硏究

李鍾昕,梁源植,金榮復 대한치과교정학회 1984 대한치과교정학회지 Vol.14 No.2

There are evidences that exogenous electric currents are capable of enhancing bone formation and resorption, and that the conversion of the bioelectric response to biochemical activity provides the directional component of orthodontic tooth movement. In addition, evidence has implicated cyclic nucleotides in alveolar bone cellular activation mechanism during orthodontic tooth movement. In view of these evidences, this study was performed to investigate the effects of exogenous electric currents on cyclic nuclotide levels in feline alveolar bone and the possible clinical application of electric currents as an additional orthodontic tool. In the first study, three groups of three adult cats were subjected to application of a constant direct current of 10±2 microamperes to gingival tissue near maxillary canine noninvsivelu for 1,3, and 7 days respectively. In the second study, three groups of three adult cats each were treaated by an electric-orthodontic procedure for 1,3, and 7 days respectively. The left maxillary (control) canine received an orthodontic force of 80gm alone at time of initation, while the right maxillary (experimental) canine received combined force-electric stimulation (80gm of force and 10±2 microamperes of a constant D.C. currents). Alveolar bone samples were obtained from the mesial (tension and/or cathode) and the distal (compression and/or anode) sites surrounding maxillary canines as well as from contralateral control sites. The samples were extracted, boiled, homogenized, and the supernatants were assayed for cyclic nucleotides (cAMP, cGMP) by a radioimmunoassay method. And also the amount of tooth movement was measured in the second study. On the basis of this study, the following conclusions can be drawn: 1. The fluctuation pattern of cyclic nucleotide levels in alveolar bone treated by exogenous electric currents was similar to that treated by orthodontic force. 2. The cAMP levels in alveolar bone of electrically treated teeth significantly elevated above the control values. And of electrically treated teeth, the values of the anode sites were higher than those of the cathode sites. 3. The cGMP levels in alveolar bone of electrically treated teeth elevated above the control values at the initiation phase of treatment, but dropped below the control values at time of termination. And of electrically treated teeth, the values of the cathode sites were higher than those of the anode sites. 4. The rate of tooth movement in teeth treated by force-electric combination increased with the length of treatment as compared to that treated by mechanical force alone.

부정교합환자에서 교합안정장치의 사용이 하악과두의 위치변화에 미치는 영향에 관한연구

김영복 대한치과교정학회 1991 대한치과교정학회지 Vol.21 No.2

There are evidences that occlusal splint therapy is critical to diagnose hidden skeleto-occlusal disharmonies in malocclusion patients ad capable of enhancing stability after orthodontic treatment. In addition, evidences have implicated occlusal splint therapy in condylar positional changes during TMJ disorder treatment. In view of these evidences, this study was performed to investigate the effect of occlusal splint therapy on condylar positional changes in malocclusion patients and the possible clinical application of the occlusal splint as an additional orthodontic tool. For this study, 8 Angle's Class I malocclusion patients, who had centric occlusion-centric relation discrepancy within 1.0mm and had no clinical symptoms of TMJ disorder, were selected as control group. And 22 malocclusion patients who had centric occlusion-centric relation discrepancy over 1.0mm were selected and subdivided as Class I Malocclusion group, Class Ⅱ div.1 malocclusion group, Class Ⅱ Div. 2 malocclusion group, Open bite group, and Mandibular asymmetry group. For each subject the occlusal splint with mutually protected type of occlusal scheme was applied for 3 months. Condylar positions in centric relation ad centric occlusion were measured using Panadent articulators and Panadent condylar position indicator(CPI) before and after occlusal splint therapy. On the basis of this study, the following conclusions might be drawn: 1.In control group, Class Ⅱ div. 2 malocclusion group, and mandibular assymetry group, there were no significant differences in condylar positions before and after occlusal splint therapy. 2.In Class I malocclusion group, condyles were moved 0.27±0.45mm forward(p<0.05) and 0.98±0.25mm upward(p<0.01) after occlusal splint therapy. 3.In Class I malocclusion group, condyles were moved 0.24±0.21mm backward(p<0.05) and 1.01±0.33mm upward(p<0.01) after occlusal splint therapy. 4.In open bite group, condyles were moved 1.24±0.30mm upward(p<0.01) after occlusal splint therapy. 5.In both control and experimental groups, there were no significant differences in lateral condylar positions before and after occlusal splint therapy.

미국 대학생들의 건강 수준 및 대학 보건 제공 체계에 관한 고찰

김영복,김현희,조형제,박천만,한창현 한국보건교육건강증진학회 2007 한국보건교육·건강증진학회 학술대회 발표논문집 Vol.- No.-

구조계와 제어계의 통합적 설계법을 이용한 크레인의 Swing-Motion 제어계 설계

김영복,장지성 대한기계학회 2005 大韓機械學會論文集A Vol.29 No.5