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생지황 약침이 정상인의 심박변이도(HRV)에 미치는 영향
신진철,김락형,송범용,육태한,Shin, Jin-Cheol,Kim, Lak-Hyung,Song, Beom-Yong,Yook, Tae-Han 대한약침학회 2008 Journal of pharmacopuncture Vol.11 No.1
Objectives : We investigated the effects of distilled Rehmannia glutinosa Herbal Acupuncture on autonomic nervous system with the Heart Rate Variability(HRV) in adult man. as well as we tried to observe how distilled Rehmannia glutinosa Herbal Acupuncture on the balance of the autonomic nervous system. Methods : We investigated on 58 healthy volunteers consisted of 28 subjects in experiment(distilled Rehmannia glutinosa Herbal Acupuncture) group and 30 subjects in control(Normal Saline) group. Study form was a randomized, placebo-controlled, double-blind clinical trial. 28 subjects in experiment group were injected distilled Rehmannia glutinosa Herbal Acupuncture at $GB_{21}$(Kyonjong) and 30 subjects in control group were injected Normal Saline at $G_{21}$(Kyonjong). except of 2 subjects(in control group) who can't be measured and 6 subjects(2 in experiment group and 4 in control group) who move or make unforceable error during measuring. Finally 26 subject in experiment group and 24 subject in control group are studied. We measured HRV by PolyG-I on 7 times : before and after injection per 5 minutes during 30 minutes. The SPSS 10.0 for windows was used to analyze the data and the paired t-test(in group) and Student t-test(between two groups) were used to verify the result. Results : 1. After distilled Rehmannia glutinosa Herbal Acupuncture injection, Mean HRV is significantly low only for first 5 minute, SDNN is significantly high after 5 minute, Complexity is significantly low only from 20 minute to 25 minute. HRV index is significantly high for first 5minute and from 10 minute to after 10 minute. 2. HRV index of distilled Rehmannia glutinosa Herbal Acupuncture Group significantly increased from 25 minute to 30 minute, and pNN50 of Rehmannia glutinosa Herbal Acupuncture Group significantly decreased from 20 minute to 30 minute compared with those of Normal Saline group. 3. After distilled Rehmannia glutinosa Herbal Acupuncture injection, Ln(TP) and Ln(VLF) are significantly high after injection. Normalized LF is significantly high from 5 minute to 20 minute and from 25 minute and 30 minute. Normalized HF is significantly low from 5minute to 20 minute and from 25 minute and 30 minute. 4. Ln(TP) and Ln(VLF) of distilled Rehmannia glutinosa Herbal Acupuncture Group significantly increased from 20 minute to 25 minute compared with those of Normal Saline group. Conclusions : The results suggest that Rehmannia glutinosa Herbal Acupuncture in healthy adult man tend to activate the autonomic nervous system and parasympathetic nervous system compared to Normal Saline within normal range.
반복횟수에 따른 저항운동이 등속성 근기능 및 근력에 미치는 영향
신진철(Shin, Jin-Chul),김기홍(Kim, Ki-Hong),고성식(Koo, Seong-Sic),김정훈(Kim, Jung-Hoon) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.4
The present study aimed to compare the effects of an 8-week 10RM squat program 5 sets of repetition maximum and another 5 sets of repetition sub-maximum, on isokinetic muscular strength, muscular power, muscular endurance and the number of repetition. 18 male P. E. majors at D University in Chungnam who had engaged in resistance work-outs for at least 6 months were selected and randomly assigned to an MRG (9) and an SMRG (9). Subjects participated in an 8-week resistance work-out program twice weekly, and performed 5 sets per day with 3-min inter-set breaks. In principle, the performance rate was set at one trial per 2 seconds in line with the resistance work-out intensity. The number of repetition was set based on the performance rate exceeding 2 seconds. The MRG(maximal repetition group) performed 5 sets of 10RM squats, whereas the SMRG(submaximal repetition group) carried out 5 sets of squats repeatedly up to the point of time when the performance rate markedly dropped. The isokinetic muscular functionality following the 8-week resistance work-out program and the number of repetition were analyzed with a 2X2 mixed-design two-way ANOVA. First, no significant inter-group difference was found in the changes of maximal muscular strength in line with the work-out intensity. Yet, both groups’ maximal muscular strength significantly increased following the 8-week training program. Second, no significant difference was found in the changes of muscular power in line with the intensity between the two groups. Still, both showed significant increases in muscular power following the 8-week training program. Third, no significant inter-group difference was found in muscular endurance in line with the work-out intensity. However, muscular endurance significantly increased following the 8-week training program in both groups. Fourth, no significant inter-group difference was found in the number of repetition in line with the work-out intensity, whereas the 8-week training program was found to significantly increase the number of repetition in both groups. Fifth, the number of 10RM increased in 8 weeks in both groups, which however was statistically insignificant. Finally, the 8-week squat resistance training program consisting of repetitions maximum and sub-maximum contributed to improving the isokinetic muscular strength, muscular power, muscular endurance and the number of repetition, exerting homogeneous training effects.
신진철(Jin Chul Shin),김준한(Jun Han Kim),손지영(Ji Young Son),양운호(Woon Ho Yang),이충근(Chung Guen Lee),양원하(Won Ha Yang) 한국생물환경조절학회 2008 한국생물환경조절학회 학술발표논문집 Vol.17 No.1
우리나라에서 수입되는 곡물은 주로 밀, 옥수수, 콩, 및 쌀이며 이들 곡물은 탄수화물, 단백질, 지질이 약 90%를 구성하고 있다. 탄수화물, 단백질 및 지질은 각각 45, 53, 77%가 탄소로 이루어져 있고 이들 곡물은 완전히 소화 이용되면 탄소부분은 전부 탄산가스로 산화 되어 대기 중에 방출되게 된다. 따라서 1톤을 소비하면 탄산가스 1.51톤, 밀은 1톤을 소비하면 1.63톤, 옥수수와 콩은 1톤을 소비하면 1.56톤의 탄산가스를 방출하게 된다. 우리나라는 곡물 자급도가 26%밖에 되지 않으므로 이는 곡물을 수입하는 만큼 외국에서 탄산가스를 수입하게 되는 결과가 되므로 자급도를 높이는 만큼 탄산가스 방출을 줄이는 결과가 된다. 우리나라는 곡물을 수입하므로서 연평균 2150만톤 이상의 탄산가스를 외국으로부터 수입한 결과가 된다.
임베디드 리눅스 시스템에서 Kernel-Warm-Start를 이용한 재부팅 시간 단축에 관한 연구
신진철(Jinchul Shin),원유집(Youjip Won),김종민(Jongmin Gim) 한국정보과학회 2012 한국정보과학회 학술발표논문집 Vol.39 No.1A
본 연구는 NAND 플래시 기반의 임베디드 시스템에 warm-start 개념을 도입하여 재부팅 시간을 단축시키는 방법에 관한 연구이다. NAND 플래시 기반의 임베디드 시스템에서는 부팅 시 커널 이미지를 NAND 플래시에서 DRAM으로 로드하는 과정이 필요하다. 최근 SoC (System-On-Chip)는 "software reset" 기능을 지원하며 DRAM의 내용을 훼손하지 않고 시스템을 리셋하는 것이 가능하다. 우리는 이 기능을 이용하여 DRAM 상에 이미 로드되어 있는 커널 요소를 재부팅 시에도 다시 사용하도록 구현하고, 그에 따라 중복된 커널 요소의 로드를 제거했다. 이 기법을 우리는 KWS(Kernel-Warm-Start) 라는 이름으로 정의했다. KWS 에서는 부팅이 재부팅인 경우 필요한 커널 요소만을 로드한다. 결과적으로 재부팅 시 커널 요소의 로드 크기를 89.29% 감소시킬 수 있었고, 재부팅 시간을 첫 번째 부팅에서 75.47% 단축할 수 있었다.
신진철(Jin-Cheol Shin) 산업기술교육훈련학회 2009 산업기술연구논문지 (JITR) Vol.14 No.4
This paper deals with the analytical approach for the reliability assessment in radially operated distribution systems. The existing indexes can consider the number and configuration of the load, but can not consider the characteristics of the load which is the one of the most important factor in the investment cost for the distribution systems. Therefore, This paper presents the new indexes considering the expected interruption cost for the load section and protection systems in the case where the Dispersed Storage and Generation Systems are introduced to distribution systems. And this paper shows the effectiveness of the proposed methods by simulating at the model systems.
IEEE 802.15.4 기반 CSMA/CA 충돌에 대한 실험결과에 근거한 Energy Save에 대한 연구
신진철(Jin Chul Shin),박홍성(Hong Sung Park) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.4
This paper is seeing as one big cause that reduce Life Time of sensor node become soft if BackOff Time is prolonged in CDMA/CA of competition way that consist at data transmission of each sensor nodes base sensor network environment. So solution method uses GTS, wish to reduce competition Node's, and minimise data transmission delay.