성별에 따른 우세손과 비우세손의 파악력, 협응력, 기민성 비교

박찬현,손호희,Park, Chan-Hyun,Son, Ho-Hee 대한고유수용성신경근촉진법학회 2022 PNF and Movement Vol.20 No.1

Purpose: The aim of this study was to present specific criteria for setting goals for hand rehabilitation by comparing the degree of difference in grip force, coordination, and dexterity between the dominant and non-dominant hand according to gender. Methods: We recruited 100 healthy adults in their 20s and 30s. A handheld digital dynamometer was used to evaluate the grip force of each of the dominant and non-dominant hand, a chopsticks manipulation test was used to evaluate coordination, and the Purdue Pegboard test was used to evaluate agility. Results: In all subjects, the grip force, coordination, and dexterity showed statistically significant difference (p <0.01) between the dominant and non-dominant hand. In the comparison according to gender, both male and female dominant and non-dominant hands showed statistically significant differences in grip force, coordination, and dexterity (p <0.01). In the comparison according to grip force, there was a statistically significant difference between the dominant and non-dominant hand, and men showed stronger result values in both hands compared to women (p <0.01). In the comparison according to coordination, there was no statistically significant difference between the dominant and non-dominant hand in men and women (p >0.05). In the comparison according to dexterity, there was a statistically significant difference between the dominant and non-dominant hand, and women were shown to be faster in performance time with both hands, compared to men (p <0.01). Conclusion: Differences according to gender exist in grip force and dexterity but not coordination, and differences between dominant and non-dominant hand exists across all measurements. The results suggest setting a recovery goal according to dominance and gender during rehabilitation of hand function.

횡하중이 작용하는 철근 콘크리트 경계보-벽체 시스템의 실험적 평가

박찬현(Park, Chan-Hyun),손홍준(Son, Hong-Jun),김대진(Kim, Dae-Jin) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.2

수소제조를 위한 DME 수증기 개질반응의 열역학적 특성

박찬현 ( Chan Hyun Park ),김경숙 ( Kyoung Suk Kim ),전진우 ( Jin Woo Jun ),조성열 ( Sung Yul Cho ),이용걸 ( Yong Kul Lee ) 한국공업화학회 2009 공업화학 Vol.20 No.2

해커들의 심리변인에 기반한 탈선적 해킹활동 및 해킹타입 예측 모델

박찬현(Chan Hyun Park),송인욱(In Uk Song),김민지(Min Ji Kim),장은희(Eun Hee Chang),허준(Jun Heo),김현택(Hyun Taek Kim) 한국통신학회 2016 韓國通信學會論文誌 Vol.41 No.4

조셉 콘라드의 「청춘」연구 -내레이터 말로우의 이원론적 시각을 중심으로

박찬현 ( Park Chan Hyun ) 대한영어영문학회 2000 영어영문학연구 Vol.26 No.2

Marlow tells us at the beginning of his narrative that there are those voyages that seem ordered for the illustration of life, that might stand for a symbol of existence. Thus he develops the implications of a single event, the baffled voyage of the Judia to the Bangkok shaping it into an intensely metaphorical statement. The freshness and appeal of this statement is due to Conrad’s bold experiments with impressionistic techniques. The use of Marlow as narrator opposes the spontaneous egoism of twenty to the wary wisdom of forty-two in a way that relativizes romantic illusions. The dual perspective also allows Conrad to distance himself from the text, to explore moral issues with flexibility, and involve his readers through a surrogate audience, those four listeners grouped around the mahogany table. Marlow gives the simple tale of catastrophe at sea thoughtfulness it finally posses. His important object is to change certain conventional notions held by his four respectable listeners. He emphasize the glamour and beauty of youth over the old men’s tendency on their younger selves with patronizing indulgence. He thinks youth should not be patronized but respected, for it offers an important and unique opportunity. To his mind, it is only time when one can be boldly and wholesomely egotistical and still mange to get away with it. Because life has not yet become tentative and morally compromising, simple heroism is always possible. And because of this singularity, youth, the years of power and illusion is the best time of one's life. <Jeonju University>

표정인식 기반의 지능형 유아 바운서 구현

박찬현(Chan-Hyun Park),함한솔(Han-sol Ham),김미정(Mi-Jeong Kim),현창호(Chang-Ho Hyun) 한국지능시스템학회 2017 한국지능시스템학회논문지 Vol.27 No.5

본 논문은 비전센서를 기반으로 유아의 감정을 인지하여 감정 상태에 따라 바운서의 속도를 제어하는 지능형 유아 바운서를 제안한다. 제시된 방안은 비전센서 기반의 영상처리 알고리즘을 이용하는 방법으로 비전센서를 통해 유아의 눈과 입을 바탕으로 표정을 인식하여 아기의 감정 상태를 판단하고, 판단된 감정 상태에 따라 바운싱 속도를 제어하여 바운서의 승차감을 향상시킨다. 또한, 감정을 고려하는 스마트모드를 비롯하여 놀이모드와 수면모드를 추가로 적용함으로서 육아에 편리함을 높이고자한다. 최종적으로, 본 논문에서 제시한 방안을 시스템에 적용하여 성능을 검증한다. In this paper, We proposes an intelligent baby bouncer that recognizes the emotion of babies with their facial expression. The advantage of the proposed baby bouncer is to control its speed according to the recognized baby’s emotion. The proposed baby bouncer uses a vision sensor based image processing algorithm and two feature points of the face to recognize the facial expression The other advantage o the proposed baby bouncer is that there are three opertaion mode depending on the speed for providing babies with the comfort; smart mode, play mode, sleep mode. These three modes improve the ride comfort of the baby by controlling at different speeds each other. Also, These modes improve convenience of baby care. Consequently, we verify the performance of the developed bouncer in practice.

혁신학교와 일반학교의 학급담임배정 비교

박찬현 ( Chan Hyun Park ),김왕준 ( Wang Jun Kim ) 한국초등교육학회 2015 초등교육연구 Vol.28 No.1

이 연구는 교사들의 인식을 통해 혁신학교와 일반학교의 학급담임배정 실제를 비교 분석한다. 연구결과 담임배정 원칙을 결정할 때 일반학교보다는 혁신학교에서 교사의 참여가 더 활발하고 인사위원회의 의견이 더 많이 반영되고 있으며, 학급담임배정 원칙이 더 잘 준수되고 있는 것으로 나타났다. 담임배정과 관련하여 관련 이해 당사들 간의 갈등의 정도를 조사한 결과, 혁신학교와 일반학교 모두 갈등의 수준이 보통 이하로 나타났으며, 혁신학교에서의 갈등수준이 일반학교보다 크게 낮은 것으로 나타났다. 담임배정과 관련한 갈등을 예방하기 위한 상담활동도 혁신학교가 일반학교보다 활발한 것으로 나타났다. 담임배정과 관련하여 갈등이 발생했을 때, 혁신학교가 일반학교보다 각 조정방법을 더 적극적으로 활용하는 것으로 나타났다. 담임배정과 관련하여 일반학교 교사보다는 혁신학교 교사들이 더 만족하는 것으로 조사되었다. 혁신학교의 학급담임배정의 실제에 대한 분석은 일반학교에 다음과 같은 시사점을 준다. 첫째, 담임배정 원칙의 결정에 교사의 참여를 확대한다. 둘째, 설정된 원칙에 따라 학급담임을 배정한다. 셋째, 학급담임배정과정에서 갈등을 예방하기 위해서 이해관련자들과의 상담을 적극적으로 실시한다. 넷째, 갈등이 발생했을 경우에 이를 조정하기 위해서 상담을 적극적으로 실시하고, 사무분장 시 배려하고, 다음 학년도 담임배정 시에 고려한다. This study analyzed the differences in homeroom teacher assignment process between innovative and general elementary schools. The result showed that innovative school teachers were more involved in setting the codes of classroom teacher assignment and the opinion of its school`s personnel committee was took into account by its administrators. The degree of conflict regarding classroom teacher assignment was below average in both innovate and general schools, but that of innovative schools was even lower than that of general schools. To reduce possible conflict between stake holders, innovative schools were more active in counselling than general schools. When the conflict took place, innovative schools were more likely to employ various measures than general schools.

ω-3 고도불포화지방산이 흰쥐의 혈청 지질과 cytokines 에 미치는 영향

박찬현(Chan Hyun Park),김송전(Song Chon Kim) 한국유화학회 1999 한국응용과학기술학회지 Vol.16 No.1

N/A This study was designed to examine the effect of ω-3 fatty acid, linlenic acid. EPA, DHA on serum lipid and cytokines of male rats(Sprague-Dawley). Animals of 3 groups were administrated perilla oil, salmoon oil, and tuna oil of 0.4 ㎖/day for 8 weeks respectively. These oils were used for a source of linolenic acid, EPA and DHA. ω-3 polyunsaturated fatty acid decrease significantly body weight, serum PGE_2 content and serum cytokines content of the rat, and increases internal organs weight, specially liver weight and serum HDL-cholesterol level of the rat. In the results, authors propose to use perilla oil for source of effective ω-3 poly-unsaturated fatty acid(linolenic acid) to Prevent cardiovascular and immune diseases.

강재 프레임을 활용한 PV 모듈의 기계적 하중실험에 대한 해석적 평가

박찬현(Park, Chan-Hyun),지상현(Ji, Sang-Hyun),하태휴(Ha, Tae-Hyu),김대진(Kim, Dae-Jin) 한국강구조학회 2023 한국강구조학회 학술대회 발표집 Vol.34 No.6

호흡을 동반한 푸쉬업 플러스 운동이 어깨 주위 근육의 활성도에 미치는 영향

박찬현 ( Chan-hyun Park ),이태규 ( Tae-gyu Lee ),손호희 ( Ho-hee Son ) 대한신경치료학회 2017 신경치료 Vol.21 No.2

Purpose The purpose of this study was to investigate the effect of the push_up plus(PUP) exercise with respiration on the activity of the muscles around the shoulders. Methods Twenty subjects were performed three types of respiration that forced inspiration(FI), forced expiration(FE), general respiration(GR) in the each posture of wall PUP and knee PUP. Prior to the initiation of the study, subjects were clearly informed of the posture of PUP exercise and three types of respiration. The six types of exercise were randomly selected by numbering card. Each type of exercise was performed three times, and after the exercise, the subjects had a rest of 5minutes. Surface EMG of serratus anterior(SA), upper trapezius(UT), middle trapezius(MT), deltoid(DT) muscles were recorded. Results There was no statistically significant difference in each types of exercise, but in the wall PUP exercise, SA and UT muscle showed highest activity at the FE, and the FI higher than GR. MT showed highest muscle activity at the FI, and the DT showed the highest muscle activity in GR. In the knee PUP exercise, SA, UT, MT and DT showed highest muscle activity in FE. In addition, there was no interaction between the posture of the PUP exercise and the respiration types. Conclusion This study showed there was no statistically significant difference in the activity of the muscles around the shoulders when PUP exercise with respiration. However, higher muscle activity was shown when FE in the measured muscles. Therefore, it is suggested to control respiration for more efficient exercise.