• Title/Summary/Keyword: 2차 운동

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KNTA Report 02 - 동아시아가 함께 만드는 결핵 없는 세상 -제2차 Stop TB 파트너십 동아시아포럼을 가다-

  • Park, Gwan-Ho
    • 보건세계
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    • v.63 no.1
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    • pp.26-28
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    • 2014
  • 지난 2012년 11월, STOP-TB운동본부는 WHO Stop TB 파트너십 사무국과 공동으로 제1차 동아시아지역 파트너십 포럼을 서울에서 개최하였다. 이틀 동안 진행된 포럼은 동아시아지역 안에서 파트너십 참가국가 간 논의가 이루어지는 첫 기회로서 국제결핵사회의 큰 환영을 받았으며, 2년 만에 자카르타가 서울로부터 바통을 이어 받아 제2차 동아시아 파트너십 포럼을 개최, 협회 신상숙 사무총장을 비롯해 관계자 6명이 회의에 참석을 위해 인도네시아로 떠났다.

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A Study on the Development of the Short Rate Zinc-Silver Secondary Battery (단시간 정격 아연-산화은 2차전지 개발에 관한 연구)

  • 공영경;김세웅
    • Journal of Energy Engineering
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    • v.3 no.1
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    • pp.77-83
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    • 1994
  • 아연-산화은 2차전지는 높은 에너지 밀도의 이점을 가진 반면, 짧은 사이클수명(설계 및 사용방법에 따라 10∼200 사이클)을 가진 단점이 있다. 산화은 전극의 비싼 가격 때문에 높은 에너지 밀도가 요구되는 분야에서 제한적으로 사용되고 있다. 본 논문은 수중운동체계의 추진용으로 사용하기 위한 신뢰성이 높은 아연-산화은 전지의 개발을 다루었다. 고율방전에서 양극 활물질의 양에 따른 전압 특성과 음극활물질의 첨가제에 따른 사이클 수명 비교 시험을 실시하였다. 본 연구결과 우수한 전압 특성과 고율방전에서10회 이상의 사이클 수명을 갖는 아연-산화은 2차전지를 개발하였다.

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Large Slow-Drift Motions of a Floating Body in Slightly Modulated Waves (해상(海上)에 계류(繫留)된 부유체(浮遊體)의 표류운동(漂流運動) 해석(解析))

  • Dong-J.,Kim;Hang-S.,Choi
    • Bulletin of the Society of Naval Architects of Korea
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    • v.27 no.4
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    • pp.3-14
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    • 1990
  • For a moored body on the sea surface, incident waves with narrow-banded spectra excite the body oscillations of short and long periods. Since the period of slow oscillations can be as long as the natural period of the moored body in horizontal modes, resonance can occur and resulting large motions may cause significant strains in mooring cables. By using the perturbation method of multiple scales, the large slow motion can be analyzed without solving any second-order potentials explicitly. To the leading order, the flows associated with the fast and slow motions interact only parametrically and thus they can be studied separately. It is found that the slow motion strongly depends on the mooring stiffness. In particular, if the moring stiffness is considerably weak compared to the body inertia, the slow motion is highly amplified near resonance. It is also shown that the slow motion is associated with the generation of long waves.

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Heat Transfer on Secondary Injection Surface in Supersonic Flow-field with Various Injection Angle (초음속 유동장내 2차분사 분사각도 변화에 따른 열전달 특성 변화)

  • Song, Ji-Woon;Yi, Jong-Ju;Cho, Hyung-Hee;Bae, Ju-Chan
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.11a
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    • pp.321-325
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    • 2008
  • In this paper, heat transfer changes due to the shock/boundary layer interaction were investigated on surfaces where secondary jet are injected. With an infra-red thermography, surface temperature was measured and the measured data was used to obtain the convective heat transfer. Heat transfer is enhanced with increment of momentum ratio. And normal injection case has a higher heat transfer value than that of 15 degrees inclined injection case. Secondary injection momentum ratio and injection angle affect the surface heat transfer distribution.

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An Outlook of Design Education in Japan and its Vision in the Future. (일본 디자인 교육의 개황과 미래의 비젼)

  • 김명석
    • Archives of design research
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    • v.11 no.1
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    • pp.81-88
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    • 1998
  • In the history of the design movement since 18708 in Japan, four eras can be seen; the first era started with the opening of Meiji era and oontinued to the World War I, the second era to the World War II, the third era from right after the second world war to 1960, and the fourth era after 1960. Before the second world war, the design education of Japan had been influenced by plenty of modem design movements which brought about in Europe such as Art and Craft Movement of William Morris, Deutscher Werkbund, and Bauhaus and by American industrial design after the World War II. Japan which early introduced western civilization established design department in universities in 1940 professing itself to be a original design education. And Japan has kept making progresses with the help of design policies of the government until now, and has seen the tornadoes of education revolution in every university after the oollapse of bubble eoonomy.

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Effects of Occlusal Condition and Clenching Force on the Mandibular Torque Rotational Movement (교합조건 및 이악물기 힘의 변화가 하악의 비틀림 회전운동에 미치는 영향)

  • Oh, Min-Jung;Han, Kyung-Soo
    • Journal of Oral Medicine and Pain
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    • v.30 no.4
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    • pp.411-426
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    • 2005
  • The purpose of this study was to investigate the effects of occlusal condition and clenching level on the mandibular torque rotational movement. For this study, healthy 14 men without any symptoms and signs of temporomandibular disorders were selected. Mandibular torque rotational movement was observed in each circumstance of combination of three occlusal conditions such as natural dentition, with wafer of 3.6 mm thickness, and wafer with resin stop of 14 mm thickness total during hard biting of bite stick at maximum voluntary contraction(MVC) and 50% of MVC level of surface EMG activity of masseter muscle. Electromyographic activity and mandibular torque rotational movement were observed using BioEMG and BioEGN in $BioPak^{(R)}$ system. Each biting movement in each circumstance was composed of clenching one time and hard biting of wooden stick two times. The observed items were opening distance, velocity and amount of torque rotational movement in mandibular movement, and the data were statistically processed with $SPSS^{(R)}$ windows (ver.10.0). The results of this study were as follows: 1. There were no differences in the mandibular movement distance between those value in both biting sides, and between those in both clenching forces, but the mandibular velocity showed a different results by clenching force. For the amount of torque rotational movement, there were no difference in the value of the frontal plane but some significant difference was in the value of the horizontal plane by biting side. 2. The mandibular movement distance and the mandibular velocity in both planes were higher by maximum voluntary contraction than those by half maximum voluntary contraction, and amount of torque rotational movement in the horizontal plane was also increased by maximum voluntary contraction. 3. The opening distance in both planes were decreased with the increase of vertical dimension of occlusion, namely, by the occlusal appliances, and this pattern was also showed in the mandibular velocity in case of hard biting by maximum voluntary contraction. However, the amount of torque rotational movement were not different by the increase of vertical dimension of occlusion. 4. The value of angle and distance of the torque rotational movement in the hard biting of wooden stick were generally higher than those in the clenching without wooden stick in both planes without regard to occlusal conditions and/or clenching forces.

A Study on Variable Block Matching Algorithm Using Edge Information of Differential Image (차영상의 윤곽정보를 이용한 가변 블록 정합 알고리즘에 관한 연구)

  • 권병헌;안정길;황병원
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.19 no.4
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    • pp.639-648
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    • 1994
  • This paper presents a new block matching algorithm in estimation of motion information that is important technology in compressing interframe. In estimation of motion information, we find differential image using two successive frame image in order to find required real time processing and accurate moving vector, the binary image is made of edge and find more accurate moving vectors by application quadtree method to parts including many moving according to this activity. The computer simulation results show that increased PSNR and reduced computation time.

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Effect of Proprioceptive Exercise on Walking Velocity, Activities of Daily Living and Depression in Elderly Women (고유수용성 운동이 여성노인의 보행속도, 일상생활활동 및 우울에 미치는 영향)

  • Kim, Nan-Soo;Bae, Young-Sook;Um, Ki-Mai
    • The Journal of the Korea Contents Association
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    • v.9 no.2
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    • pp.233-241
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    • 2009
  • The purpose of this study was to evaluate the effects of proprioceptive exercise on walking velocity, activities of daily living(ADL) and depression in elderly women. This study was nonequivalent control group pre-post test design. Subjects were divided into two group(exercise group=17, control group=15). Experimental group conducted proprioceptive exercise program for eight-week. Walking velocity was assessed by 10m-walk test and depression and ADL were assessed by questionnaire. The collected data analyzed by Wilcoxon singed rank test and Mann-Whitney U test. The exercise group significantly improved walking velocity. But control group changes were negligible. The program was effective on walking in elderly women.

The Effects of Rehabilitation Treatment on the Immune Cells and Cortisol Levels of Stroke Patients (뇌졸중 환자의 재활치료가 면역세포와 Cortisol에 미치는 영향)

  • Oh, Dong Sun
    • Korean Journal of Clinical Laboratory Science
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    • v.47 no.2
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    • pp.90-95
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    • 2015
  • The purpose of this study was to investigate the effects of exercise through an in-hospital rehabilitation program on the enhanced immunity of immune cells and on the reduction of serum Cortisol, an indicator of physiological stress responses, among stroke patients. The 25 subjects were put to the program for two years from March 2, 2013 to February 28, 2015. The experimental group included 13 stroke patients from S and C Hospital in Gwangju, and the control group was composed of 12 common people. The findings were as follows: there were no significant differences in T cells between the experimental group with $69.18{\pm}11.78%$ and the control group with $70.75{\pm}6.33%$; there were significant differences in B cells between the experimental group ($12.95{\pm}3.74%$) and the control group ($16.27{\pm}3.49%$). Furthermore, there were no statistically significant increases of NK cells between the experimental group ($21.98{\pm}8.98%$) and the control group ($15.72{\pm}5.07%$) with p<0.05, though the values for the experimental group did rise. While there was elevated Cortisol before exercise in the experimental group (p<0.05), which recorded $13.65{\pm}6.85%$ before and $9.90{\pm}4.66%$ after, there were no differences in the control group, which recorded $11.635{\pm}4.02%$ before and $12.64{\pm}2.30%$ after exercise. The present study also found continued exercise through an in-hospital rehabilitation exercise program increased differences in NK and T cells before and after exercise in the experimental group and thus had effects on enhanced immunity. Meanwhile, differences in Cortisol before and after exercise in the experimental group decreased, which indicates that the continued exercise was effective in reducing stress.