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박광현,배현덕 ( Kwang Hyun Park,Hyeon Deok Bae ) 충북대학교 산업과학기술연구소 1990 산업과학기술연구 논문집 Vol.4 No.2
Abstract_Roman The environmental hazard facilities and nuclear facilities which treat rad- ioactive materials are being increased continuously, and many health physics equipments are also needed in these facilities but most of the equipments are importe
박광현,Seung-II Jeong,Ji Ye Mok,Jung-Keun Cho,Ji Min Park,In Hwa Jeon,Hyeon Soo Kim,Seon Il Jang 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.2
In a previous study, our group showed that the effective microorganism substance (EM-S) produced by fermentation of medicinal plants with effective microorganisms has an antiinflammatory effect on atopic dermatitis-like lesions in NC/Nga mice. However, the possible antiinflammatory effect and skin barrier function of EM-S for inflammatory cell infiltration,Interleukin-4 (IL-4) production, C-C chemokine receptor 10 (CCR10), and filaggrin (FLG) expression were not reported. Therefore, effects of EM-S on the development of atopic dermatitislike skin lesions in NC/Nga mice were evaluated. Efficacy of EM-S was judged by measurement of scratching behavior, T-cell subset infiltration, cytokine production, and FLG expression. Topical application of EM-S significantly reduced scratching behavior in NC/Nga mice caused by house dust mite antigen (Dermatophagoides farinse extract, DfE) sensitization. IL-4 production and CD4+ and CD45+ cell infiltrations were significantly reduced by EM-S. CCR10 expression was also significantly inhibited by EM-S. EM-S treatment also increased the level of FLG reduced by DfE sensitization. These results demonstrate EM-S, when applied topically, may be an effective substance for management of atopic dermatitis patients.
박광현,변증남,Park, Kwang-Hyun,Bien, Z. Zenn 대한전자공학회 2001 電子工學會論文誌-SC (System and control) Vol.38 No.4
본 논문에서는 반복 학습 제어의 수렴 특성에 대해 다룬다. 우선, 기존의 ${\lambda}$-노옴을 사용하여 반복 학습 법칙의 수렴성을 증명한 것과는 달리 상한노옴(sup-norm)을 사용한 수렴성 증명방법을 보인다. 또한, 구간화된 학습 방법을 사용한 반복 학습 법칙을 제안하고, 임의의 시간구간에 대해 상한노옴 관점에서 출력 오차의 단조감소적 수렴 특성을 얻을 수 있음을 보인다. 마지막으로, 제안한 구간화된 학습 방법에서의 나누어진 시간 구간이 학습 이득값에 의해 영향을 받는다는 것을 보이고, 적절한 학습 이득값을 선택함에 따라 학습 속도가 증가함을 보인다. 제안한 반복 학습 법칙의 유효성을 보이기 위하여 두 가지 수치 예를 보인다. In this paper, we study the convergence property of iterative learning control (ILC). First, we present a new method to prove the convergence of ILC using sup-norm. Then, we propose a new type of ILC algorithm adopting intervalized learning scheme and show that the monotone convergence of the output error can be obtained for a given time interval when the proposed ILC algorithm is applied to a class of linear dynamic systems. We also show that the divided time interval is affected from the learning gain and that convergence speed of the proposed learning scheme can be increased by choosing the appropriate learning gain. To show the effectiveness of the proposed algorithm, two numerical examples are given.
박광현,김유민,김현아,서한빛,손원빈,송은지,신수진,안하림,이충정,조민옥,김민희,Park, Kwang-Hyun,Kim, Yu-Min,Kim, Hyun-A,Seo, Han-Bit,Son, Won-Bin,Song, Eun-Ji,Shin, Su-Jin,Ahn, Ha-Rim,Lee, Choong-Jung,Cho, Min-Ok,Kim, Min-Hee 대한고유수용성신경근촉진법학회 2016 PNF and Movement Vol.14 No.2
Purpose: The purpose of this study was to investigate the effects of visual and auditory stimulation on the ability to perform exercise. Methods: One hundred twenty subjects were randomly divided into four groups (Green light and Fast tempo music, GF; Green light and Slow tempo music, GS; Red light and Fast tempo music, RF; and Red light and Slow tempo music, RS). One of either two visual stimuli or one of two auditory stimuli were applied to each group. The experiment was conducted randomly twice in two environments: one had visual and auditory stimuli and one had no stimulation. Muscle strength, grip, endurance, quickness, agility, concentration, and balance were measured to determine the ability to perform exercise. Results: Significant differences were found in the muscle strength of the participants who were exposed to the auditory factor and the interaction of visual and auditory factors. In endurance, significant differences were found in all of the factors: visual, auditory, and the interaction of visual and auditory. In quickness, agility, and balance ability there were significant differences in the visual factor. In concentration, there was a significant difference in the auditory factor. Conclusion: Visual stimuli, auditory stimuli, and their interaction influenced the ability to perform exercise. These facts imply that providing the proper environmental stimulation is important to increase the ability to perform during exercise.
박광현(Park Kwang-Hyun),김태영(Kim Tai-Young) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(계획계)
This paper is aimed to clarify craftsmanship of non-educated constructor in timber structure of korean-style secondary station(Gong-So). We analyze Roman Sin-Sung and Su-Bun secondary station which post-lintel was 2Go-Ju 5Ryang in Jeon-Buk area. We reach the following conclusion. Firstly, the clear span is different types of the layout. This has lots of space for number of persons with the introduction of a basilica plane. Secondly, they constructed the holy space by using high columns(Nae-Jin-Go-Ju). It caused the problem with eaves(Chu-Nyu) and rafter, solved the problem by reinforcement and replacement. Thirdly, the elements showed the natural feature such as irregular wooden floor, arch-type head pentrating tie and a ceiling. In the end, we know that non-educated constructor have found a way out in the problem for accepting unreasonable work.