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장기간 복합운동 유형에 따른 신체 구성과 중성지방의 변화
김현,주진만,정윤기 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1
This study is designed to make an analysis of the differences between aerobic exercise and resistive exercise in accordance with changes in the order of combination exercise patterns by group, to make study of the connection between physiological changes and biochemical changes and to determine the most suitable form of exercise. The researcher worked with a total of 16 overweight women at departments of nursing science(eight subjects per group). They were made to go through 12 weeks' training. Making a comparative analysis of changes in their body composition and blood lipid before and after training, the researcher came to the following conclusions. The survey on changes in the prior and post body composition of the subjects in accordance with the order of exercise shows that there was a statistically significant difference(P<.05) in weight, fat mass(body fat) and theratio of waists and hips in case of the jogging group(B) after weight training, and that there was no statistically significant difference in the two groups(A, B), although there was a mean difference in FFM(fat-free mass). The survey on changes in prior and post TG(Triglyceride) in the blood according to the order of exercise indicates that there was a significant difference(P<.05)when the jogging group(B) took a rest after weight training. According to the findings, there was a statistically and positively significant difference in the physiological and biochemical changes of body composition and blood lipid before and after training in case of aerobic exercise(jogging) group after resistive exercise(weight training), which the researcher thinks serves as one of the most suitable models.
Oh, Man-Jin,Yi, Sang-Duk,Jeoung, Hyun-Kyo,Chang, Kyu-Seob,Yang, Jae-Seung,Song, Chi-Kwang The Korean Society of Food Science and Nutrition 2002 Preventive Nutrition and Food Science Vol.7 No.2
Changes in accumulated pulsed photostimulated luminescene (PPSL) signals were observed after storage, which affected the ability to detect irradiation in black and white peppers. The PPSL curves were accumulated linearly during the 120 s measurement times, and PPSL signals increased according to irradiation doses. Threshold levels of black and white peppers were below 557$\pm$220 and 503$\pm$92 photon counts in 60 s, and below 679$\pm$351 and 812 $\pm$ 648 photon counts in 120 s, respectively. The PPSL signals of black and white peppers linearly increased with irradiation dose up to 5 kGy, but very little from 5~10 kCy. The accumulated PPSL signals of irradiated black and white peppers had higher decay rates when stored in normal room conditions than in a darkroom Detection of irradiation was possible for up to 12 months after irradiation, if the samples were stored in a darkroom.
Digitized QT dispersion by the Valsalva Maneuver in Hypertensive Patients
( Hee Jeoung Yoon ),( Seung Won Jin ),( Jong Min Lee ),( Woo Seung Shin ),( Yong Suk Oh ),( Man Young Lee ),( Ki Bae Seung ),( Tai Ho Rho ),( Jae Hyung Kim ),( Soon Jo Hong ),( Kyu Bo Choi ) 대한내과학회 2005 The Korean Journal of Internal Medicine Vol.20 No.2
Yong-Whan Jeong,최은하,Jin-Man Jeoung 한국전기전자재료학회 2005 Transactions on Electrical and Electronic Material Vol.6 No.6
Influences of sustain pulse-width on electrical characteristics and luminous efficiency are experimentally investigated for surface discharge of AC-PDP. A square pulse with variable duty ratio and fixed rising time of 300 ns has been used in the experiment. It is found that the memory coefficient is significantly increased at the critical pulse-width. And the wall charges and wall voltages as well as capacitances are experimentally measured by Q-V analysis method along with the voltage margin relation, in terms of the sustain pulse-width in the range of 1㎲ to 5㎲ under driving frequency of 10 kHz to 180 kHz. And the luminous efficiency is also experi-mentally investigated in above range of sustain pulse-width with driving frequency of 10 kHz to 180 kHz. It is noted that the luminous efficiency for 10 kHz and 180 kHz are 1.29 lm/W and 0.68 lm/W respectively, since the power consumption for 10 kHz is much less than that for 180 kHz. It has been concluded that the optimal sustain pulse-width is in the range of 2.5∼4.5㎲ under driving frequency range of 10 kHz and 60 kHz, and in the range of 1.5∼2.5㎲ under driving frequency range of 120 kHz and 180 kHz based on observation of memory coefficient, and wall voltage as well as luminous efficiency.
Jeong, Yong-Whan,Jeoung, Jin-Man,Choi, Eun-Ha The Korean Institute of Electrical and Electronic 2005 Transactions on Electrical and Electronic Material Vol.6 No.6
Influences of sustain pulse-width on electrical characteristics and luminous efficiency are experimentally investigated for surface discharge of AC-PDP. A square pulse with variable duty ratio and fixed rising time of 300 ns has been used in the experiment. It is found that the memory coefficient is significantly increased at the critical pulse-width. And the wall charges and wall voltages as well as capacitances are experimentally measured by Q- V analysis method along with the voltage margin relation, in terms of the sustain pulse-width in the range of $1{\mu}s$ to $5{\mu}s$ under driving frequency of 10 kHz to 180 kHz. And the luminous efficiency is also experimentally investigated in above range of sustain pulse-width with driving frequency of 10 kHz to 180 kHz. It is noted that the luminous efficiency for 10 kHz and 180 kHz are 1.29 1m/W and 0.68 1m/W respectively, since the power consumption for 10 kHz is much less than that for 180 kHz. It has been concluded that the optimal sustain pulse-width is in the range of $2.5 {\~}4.5{\mu}s$ under driving frequency range of 10 kHz and 60 kHz, and in the range of $1.5 {\~} 2.5{\mu}s$ under driving frequency range of 120 kHz and 180 kHz based on observation of memory coefficient, and wall voltage as well as luminous efficiency.
강원도 간성지역에 분포하는 화강풍화토의 도로토공 재료특성 연구
정재형 ( Jae Hyeung Jeoung ),유준 ( Jun Yu ),김진만 ( Jin Man Kim ),김승현 ( Seung Hyun Kim ),임광수 ( Kwang Su Lim ) 대한지질공학회 2011 지질공학 Vol.21 No.3
건설 현장에서 대규모의 풍화토 지반을 만나게 되면, 지반구조물의 설계 및 시공에 있어서 계획변경을 수반하게 된다. 풍화토는 대부분 공기중에 노출됨과 동시에 풍화가 급속하게 진행되어 토공구조물에 심각한 영향을 줄 수 있으며, 입도가 불량하고 수분에 민감하여 다짐관리가 어렵다. 이러한 풍화토는 공학적인 성질이 지역적으로 대단히 다르게 나타나는 경우가 많아서 지역적 특성을 연구하여 보고하는 것이 중요하다. 본 연구에서는 강원도 간성지역에서 존재하는 화강풍화토를 발생된 현장 2곳에서 각각 23개소, 8개소 채취하여 지질학적으로 고찰한 후, XRD분석, 입도, 연경도, 다짐특성을 분석하고, 도로 토공재료로서의 평가를 위하여 CBR값과 균등계수, 200체 통과율, 2 mm 이상 골재 함유율과의 연관성을 분석하였다. 그 결과, 연구대상 지역의 화강풍화토는 2 mm이상의 골재함유량이 CBR값에 영향을 크게 주는 것으로 파악되었으며, 기준미달토등에 대하여 2 mm이상의 골재를 혼합하여 토질을 개선할 수 있을 것으로 판단되었다. Upon encountering weathering soil at a construction site, it may be necessary to change the design and construction plans for geotechnical structures. When weathering soil is exposed to air, the weathering process proceeds rapidly, resulting in significant damage to geotechnical structures, particle defects, and an increase in moisture sensitivity. The management of weathering-soil compaction is challenging. Because the engineering properties of weathering-soils vary regionally, it is important to report the result of research into the regional characteristics of such soils. At two locations of granite gneiss in the Gansung area of Gangwon-do, geological studies were performed at 22 and 8 sites, respectively. At each site, test samples were collected for analysis by XRD and to measure particle size, consistency, and compaction. To evaluate the suitability of the material for road subgrade, we examined the interrelationship between CBR value and the uniformity coefficient, the 200 sieve passing ratio and the aggregate (≥ 2 mm) content. We found that for the weathered granite soil, aggregate sized > 2 mm has a significant effect on the CBR value. In addition, the mixing of aggregate sized > 2 mm with sub-quality soil improves the soil condition.