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태연혈(太淵穴)의 유침 시간에 따른 체온 변화 -적외선체열촬영(赤外線體熱撮影)을 중심으로-
이봉효 ( Bong Hyo Lee ),이경민 ( Kyung Min Lee ),박지하 ( Ji Ha Park ),김민서 ( Min Seo Kim ),김산들 ( San Deul Kim ),박병규 ( Byeong Gyu Park ),양현동 ( Hyun Dong Yang ),예성호 ( Sung Ho Yea ),이호정 ( Ho Jung Lee ),최재원 ( Jae 경락경혈학회 2012 Korean Journal of Acupuncture Vol.29 No.2
Objectives: This study was performed to find the desirable remaining time of needle in the acupuncture treatment. Methods: The 21 volunteers were given acupuncture at LU9 vertically and needles were remained for 2 min, 10 min, 15 min, 30 min, respectively. The thermographic change induced by acupuncture was measured with Digital Infrared Thermographic Image at the following acupoints: LU11, LU10, LU9, LU8, LU5, LU1, and PC7. The statistical significance of thermographi change was evaluated using paired t-test and post hoc Wilcoxon test. Results: The most significant changes after acupuncture were produced when needles were remained for 10 min or 15 min. LU11, LU5, LU1, and PC7 were the point at which all of the remaining time produced significant change commonly. At LU11, the biggest change was produced when needle was remained for 15 min, while at LU5, LU1, and PC7, the biggest change was produced when needle was remained for 30 min, and the smallest change was produced when needle was remained for 10 min at all of acupoints of LU11, LU5, LU1, and PC7. The unbalance between left side and right was decreased the most largely in 15 min group. Conclusions: The results of this study suggest that the desirable remaining time of acupuncture needle might be 15 min.
Seo, Min-Kang,Park, Soo-Jin American Scientific Publishers 2009 Journal of nanoscience and nanotechnology Vol.9 No.12
<P>In this work, the energy storage composite electrodes were prepared by mixing activated carbons (ACs) modified with a nanosize titanium oxide (TiO2) through a means of ultrasonic vibration in ethanol solution for 30 min. We examined the cyclic voltammetry of the composite electrodes in an aqueous electrolyte, 1 M H2SO4. It was found that the specific capacitance of the composite electrodes measured in a range of 0-0.8 V was increased from 100 to 155 F/g compared to carbon electrodes comprised of activated carbon only. This was attributed to a reduction of polarization of the ACs modified by nanosized TiO2.</P>
서민구 ( Min Goo Seo ),도재철 ( Jae Cheul Do ),우인옥 ( In Ohk Ouh ),조민희 ( Min Hee Cho ),김중규 ( Joong Kew Kim ),김영환 ( Young Hoan Kim ),박노찬 ( No Chan Park ),곽동미 ( Dong Mi Kwak ) 한국가축위생학회 2011 韓國家畜衛生學會誌 Vol.34 No.4
Prevalence of infectious agents, including Brucella abortus (BA), Mycobacterium bovis (MB), bovine leukemia virus (BLV), M. avium subsp. paratuberculosis (MP), Neospora caninum (NC) and Toxoplasma gondii (TG), was investigated in all the cattle raised in Ulleung island during 2007∼ 2010. For BA, the prevalences in head and farm were 8.1% (44/545) and 5.5% (4/73) in 2007, all negative in 2008∼2009, and 0.5% (4/774) and 1.7% (1/58) in 2010, respectively. For MB, no sample was positive by PPD or ELISA in 2007∼2010. For BLV and MP, no sample was positive by ELISA in 2007∼2009. For NC, seroprevalences in head and farm were 0.2% (1/545) and 1.4% (1/73), respectively, in 2007 and all negative in 2008∼2009. For TG, seroprevalences in head and farm were 17.6% (97/552) and 54.8% (34/62) by ELISA in 2009. By regions, the seroprevalences of TG in Ulleung-eup, Seo-myeon and Buk-myeon were 26.0%, 9.8% and 16.7%, respectively, which had significant differences (P<0.0001). Tiger cattle were more resistant to TG infection than Hanwoo. The seroprevalence of TG in summer was higher than in autumn. The seroprevalence of TG in cows was higher than in oxen. The seroprevalence of TG in cattle was increased with age. In conclusion, this study indicates that the prevalences of six infectious diseases, except for TG which are widely spread, are relatively low in cattle reared in Ulleung island.
이정민 ( Jung Min Lee ),뱍인선 ( In Sun Park ),안택원 ( Taek Won Ahn ),홍서영 ( Seo Young Hong ) 한방재활의학과학회 2012 한방재활의학과학회지 Vol.22 No.1
Objectives :The purpose of this study was to investigate the influence of balneotherapy on the changes of DITI(digital infrared thermal imaging). Methods :This study was carried out on 27 patients. They went through balneotherapy with high pressure under water shower(15 min.) and whole body bathing in neutral or hot water between 32 to 40 ℃(15 min.). DITI was measured at before and after the treatment. And then the data was analyzed. Results :1. In cold hypersensitivity of hands group, temperature on PC8 rose and difference between LU4 and PC8 decreased(p<0.05)(Fig. 1, Table Ⅱ). 2. In cold hypersensitivity of feet group, temperature on LR3 rose and difference between ST32 and LR3 decreased(p<0.05)(Fig. 2, Table Ⅱ). 3. In shangrexiahanzheng(上熱下寒證) group, there were no significant changes on CV17, CV6 and difference between CV17 and CV6(Fig. 3, Table Ⅱ). Conclusions :These results demonstrated that balneotherapy has clinical effects on cold hypersensitivity of hands and feet. And further studies are required to apply the balneotherapy in order to cure various diseases in the future.
K-POP 커버댄스 운동이 청소년 폭력 관련 심리 변인 및 혈중 호르몬 농도에 미치는 영향
서태범(Tae-Beom Seo),김영숙(Young-Sook Kim),김유미(Yu-mi Kim),강민정(Min-Jeong Kang),서경호(Kyeong-Ho Seo),박해찬(Hae-Chan Park) 한국생활환경학회 2015 한국생활환경학회지 Vol.22 No.5
The purpose of this study was to examine the effect of K-POP cover dance on violence related psychological factors, blood hormones, and neurotransmitters in adolescents. Participants in this study were 30 males and females taken blood sample and surveyed. All participants were performed K-POP cover dance (50~75%MHR, 80 min/day, 3days/week) during 8 weeks. School stress, assumed stress, interpersonal stress, ego stress were composed the stress factors. Body and verbal aggression, propriety, anger were composed aggression factors. School stress, assumed stress, interpersonal stress, ego stress were decreased significantly on K-POP cover dance. Also, body and verbal aggression, propriety, doubt, anger were decreased significantly on K-POP cover dance. Cortisol, melatonin, beta-endorphin, serotonin, dopamin were composed violence related blood factors. Cortisol were decreased significantly, but melatonin and dopamin were no significantly on K-POP cover dance. It is concluded that K-POP cover dance caused positive effects on violence and stress, stress related blood hormones.
서병수(Byung Soo Seo),김세천(Sei Cheon Kim),박종민(Chong Min Park),이창헌(Chang Heon Lee),이규완(Kyu Wan Lee) 한국산림과학회 1994 한국산림과학회지 Vol.83 No.3
The object of this study was to examine the user`s impacts on the environmental deteriorations of trail at Ticket Office - Paekryunsa (Temple) Hyangcho^kpong - Dongyupryung - Chilyun Fall area in To^kyusan National Park. Four trails were sampled in the study area according to the amount of users. Then the user`s impacts on trail were measured at each trail. The Ticket Office-Paekryunsa trail was the mo;;t used district and followed at Paekryunsa-Hyangcho^kpong trail, Hyangcho^kpong-Dongyupryung trail in descending order. Dongyupryung-Chilyun Fall trail is not used by people because of rest rotation system. The entire width of trail was greater at the more heavily used trail. Maximum depth, cross-sectional area loss, and surface texture and roughness of trail were the highest at Paekryunsa-Hyangcho^kpong trail. Soil hardness, soil acidity, soil moisture content, organic matter content, and exchange canon were influenced by trampling. Soil hardness, soil acidity and exchange canon increased in tramples soil, but content of soil moisture and organic matter decreased therein. Environmental deteriorations of trail were significantly influenced by the amount of users and the slope of trail. Bared lands about 2.000㎡ were appeared by trampling and camping around Hyangcho^kpong. Effects of carrying of rest rotation system for National Park were partly recognized at Dongyupryung-Chilyun Fall trail.
연구보문 : 자연과학 ; 황산처리에 의한 불투수성 황근 종자의 발아촉진에 관한 연구
서상흠 ( Sang Heum Seo ),박민우 ( Min Woo Park ),장미하 ( Mi Ha Chang ),장일웅 ( Il Ung Jang ),심상인 ( Sang In Shim ),나영왕 ( Young Wang Na ),김수영 ( Soo Young Kim ),김석현 ( Seok Hyeon Kim ) 한국국제농업개발학회 2012 韓國國際農業開發學會誌 Vol.24 No.3
The reason of poor germination rate of hamabo mallow seed was speculated using TZ test to determine the viability of seed. Seeds showed high viability via TZ test were not germinated well. The quiescent seeds did not imbibed properly due to the hard seed coat and did not show further processes required for germination. Several well-known treatments for seed coat loosening and water uptake into seed were applied and compared for their efficiency. Stratification, hot water treatment, seed coat scarification, wet-cold treatment were revealed as less effective for improving germination although those treatments were common method for breaking dormant seed. Chemical scarification with sulfuric acid, however, effectively increased germinability and promptness index of hamabo mallow seeds. Optimal time for sulfuric acid treatment was 20 min. Seeds treated for 20 min showed improved germination percentage, germination speed, and promptness index of 80%, 13, and 1969 at 30 days after imbibition, respectively, in petri dish experiment. The values were greater than control seeds showed low values (12%, 1, and 183, respectively). The similar tendency was observed in the pot experiment that sulfuric acid treated seed were sown in artificially mixed soil (loamy soil:peatmoss:sand:compost = 5:2:2:1) and placed in greenhouse. Ultrastructure analysis of chemically scarified seed with sulfuric acid for 20 min by scanning electron microscopy did not show any noticeable changes in seed coat hardness and water uptake via hilum. But the only change after sulfuric acid treatment was removal of hilum cap that close the hilum and hider imbibition. Therefore, subsequent experiment was conducted to know the relationship between removal of hilum cap and facilitated imbibition by sulfuric acid treatment and whether the hilum cap removal directly influenced to the opening of micropyle. Water uptake velocity of seed treated for 20 min in concentrated sulfuric acid for was greater than control seed. This result implies that the crucial effect of sulfuric acid treatment is the removal of hilum cap that increase water uptake via micropyle in hamabo mallow.
추출방법에 따른 감귤 과피 유래 Flavonoid의 추출효율 및 항산화 효과에 대한 비교
최찬익 ( Chan Ick Cheigh ),정원근 ( Won Guen Jung ),정은영 ( Eun Young Chung ),고민정 ( Min Jung Ko ),조상우 ( Sang Woo Cho ),이재환 ( Jae Hwan Lee ),장판식 ( Pahn Shick Chang ),박영서 ( Young Seo Park ),백현동 ( Hyun Dong Paik 한국산업식품공학회 2010 산업 식품공학 Vol.14 No.2
본 연구에서는 감귤 과피 가공부산물로부터 기능성 polyphenol 및 flavonoid가 새로운 추출방법인 아임계 추출법을 통해 추출되었고, 열수(80oC), 에탄올, 설탕용액을 이용한 기존 추출법과의 추출효율이 비교 분석되었다. 건조된 감귤 과피로부터 총 polyphenol(27.25±1.33mg QE/g DCP) 및 flavonoid(7.31±0.41mg QE/g DCP)에 대한 최대수율이 아임계 추출법(190°C, 1300 psi, 10 min)을 통해 획득되었으며, 이것은 기존 추출법 가운데 가장 높은 수율을 보인 에탄올 추출법을 통한 총 polyphenol(3.79±0.73mg QE/g DCP) 및 flavonoid(0.86±0.27mg QE/g DCP) 수율 대비 7.2배와 8.5배 이상 더 높은 것이었다. 추출방법에 따른 감귤 과피 추출물의 항산화 활성은 큰 차이를 나타내지 않았으나, 이러한 결과는 건조 감귤 과피 1g 당 아임계 추출법(190oC, 1300 psi, 10 min)에 의한 항산화 성분의 상대 수율(relative yield, %)이 다른 추출방법을 통해 획득된 것보다 대략 9.5배 이상 더 높다는 것을 설명하는 결과로, 아임계 추출법이 기존의 전통적 추출법에 비하여 감귤 과피의 기능성 polyphenol 및 flavonoid를 추출하는데 매우 적합한 방법임을 제시하고 있다. The extraction of polyphenol and flavonoid from citrus peel was performed by the ethanol, sugar, hot water (80oC), and subcritical water extraction methods. The maximum yields of total polyphenolic compounds (27.25±1.33mg QE/g DCP, QE and DCP indicate quercetin equivalent and dried citrus peel, respectively) and flavonoids (7.31±0.41mg QE/g DCP) were obtained by subcritical water extraction (SWE) with operating conditions of 190oC, 1300 psi, and 10 min. The yields by SWE were over 7.2-, and 8.5-fold higher than those of total polyphenols (3.79±0.73mg QE/g DCP) and flavonoids (0.86±0.27mg QE/g DCP) obtained using the ethanol extraction, which showed the highest extraction efficiency among tested conventional methods, respectively. Antioxidant activities of extracts obtained by different methods showed no significant differences. However, the relative antioxidant yield per 1 g dried citrus peel by SWE (190oC, 10 min) was over 9.5-fold higher than that by the ethanol extraction.
多孔性 PTCR 材料에서 첨가제의 입도가 특성에 미치는 影響에 관한 硏究
서민아,박성,이병하 明知大學校 産業技術硏究所 1997 産業技術硏究所論文集 Vol.16 No.-
It is know that PTCR thermistor of powder based on BaTiO₃and fabricated by adding a some dopants to semiconductor and little amount of acceptors to higher ratio of resistivity. Those powder has shown good electrical properties for PTCR ceramics will be high than 1350℃ with 6 or 7 orders of magnitude resistivity as PTCR effect. Also acceptor add has been used for in order to higher PTCR effect. In this research, it is observed that the content of Sb₂O₃dopant and SiO₂ liquid sintering additive influence PTCR characteristics of BaTiO₃ ceramics. In addition of graphite by special synthesized process and be obtain porous PTCR ceramics for excess oxygen vacancis that remained to be uncompensated by oxygen exist near the grain boundaries I excess of the number of acceptor states being there. Also it is researched that particle size of Graphite influence size of pore and characteristics of BaTiO₃ceramics