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축구선수의 Detraining과 Retraining이 혈청지질 및 호르몬농도에 미치는 영향
정정화,박재현,채종훈,성혜련,황지인,윤미숙,노금선,윤종관,윤영학,노순덕,정경숙,박일규,김은희,박현태,박상갑 대한스포츠의학회 1999 대한스포츠의학회지 Vol.17 No.1
The purpose of this study was to investigate the effects of detraining and retraining on serum lipid and hormones in soccer players. Subjects were seven male high-school soccer players. V˙O_2max was determined for each subjects by administering a treadmill test(initial speed: 90m/min, grade: 5%, increasing speed per 3 min: 30m/min). Serum lipid(T-C, TG, HDL-C LDL-C) and hormones(epinephrine, norepinephrine, growth hormones, cortisol) were assayed pre and post detraining in 10, 20, 30 days after retraining. The repeated ANOVA was used to determine significant differences. The 0.05 level of significance was as critical level for the study. The results of the study were as follows: 1. V˙O_2max(ml/min) were 3576.3±204.2ml/min pre detraining, 3234.1±198.9 ml/min post detraining. There are significant(p<.05) difference between pre and post detraining. In 10, 20, 30 days after retraining, V˙O_2max(ml/min) were 3601.4±170.9 ml/min. There were significantly(p<.05) increased in retraining periods. 2. V˙O_2max(ml/kg/min) were significantly(p<.05) decreased from 62.3±2.9 ml/kg/min to 55.9±4.7 ml/kg/min in detraining. In 10, 20, 30 days after retraining, V˙O_2max(ml/kg/min) were 62.4±3.4ml/kg/min, 62.7±2.3ml.kg/min, 67.3±7.2ml/kg/min respectively. There were significantly(p<.05) increased in retraining periods. 3. T-C were significantly (p<.05) increased from 166.6±8.5mg/dl to 175.3±10.3 mg/dl in detraining. In 10, 20, 30 days after retraining, T-C were 160.1± 3.2mg/dl, 156.7±3.7mg/dl, 140.3±9.0mg/dl. There were significantly(p<.05) decreased in retraining periods. 4. HDL-C were 61.4±6.6mg/di pre detraining, 5.3±6.6mg/dl post detraining. There are significant(p<.05) difference between pre and post detraining. In 10, 20, 30 days after retraining, HDL-C were 56.9±7.1mg/dl, 56.4±9.2mg/dl, 57.7±9.1mg/dl respectively. There were no significant difference in retraining periods. 5. The hormones(epinephrine. norepinephrine, growth hormone, cortisol) were changed as same patterns. Epinephrine were 26.0±7.0[g/ml pre detraining, 24.6±3.2pg/ml post detraining. In 10, 20, 30 days after retraining, epinephrine were 26.9±5.6pg/ml, 30.6±6.2pg/ml, 29.4±5.6pg/ml respectively. There were no significant difference in retraining periods. In conclusion, HDL-C, epinephrine, norepinephrine, growth hormone and cortisol were decreased, T-C, LDL-C and TG were increased in detraining. But HDL-C, epinephrine, norepinephrine, growth hormone and cortisol were increased, T-C, LDL-C and TG were decreased in retraining.
Analysis of Genetic Diversity of Korean Wheat Cultivars Using Microsatellite DNA Polymorphisms
Park,Yong-Jin,Cho,Gyu-Taek,Ma,Kyung-Ho,Lee,Sok-Young,Lee,Jung-Ro,Kim,Young-Chang,Cho,Eun-Gi,Kim Chang-Yung,Nam,Jung-Hyun,Rao,V,Ramanatha,Kang,Hee-Kyoung 한국자원식물학회 2004 Plant Resources Vol.7 No.2
Genetic background and phylogenetic relationships among 20 Korean wheat cultivars were assessed using microsatellites after amplifying with 13 SSR primer pairs. Average allele number per primer pair was 3.36. Genetic similarities for every pair of cultivars ranged from 0.42 to 0.97, with 0.69 of overall average. Korean cultivars were divided into two major groups based on microsatellite DNA polymorphisms. Group I consisted of relatively old cultivars developed until 1970s, and group II contained the recent cultivars developed during 1980s and 1990s. Amongst old elite cultivars/lines, ‘Yukseung 3’, ‘Norin 12’ and ‘Norin 72’ contributed most to the genetic background of cultivars belonging to group I, and ‘Norin 4’, ‘Norin 12’, ‘Norin 43’ and ‘Norin 72’ to group II, respectively. The phylogenetic relationship of Korean wheat cultivars was in accordance with the genealogical data of each cultivar. The genetic background of each cultivar was assessed from the point of breeding and germplasm management such as variety identification and duplicated accessions for assisting in developing a system for the registration of new variety based on the molecular characterization in future.
3축 마이크로 공작기계용 자기예압 공기베어링 스테이지의 정, 동적 특성
노승국,Kornel F. Ehmann,Yoon, Hyung-Suk,박종권 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-
In this paper, the static and dynamic stiffness of the air bearing stage for micro-micro machine tool are examined experimentally. For stiffness and precision concerns, air bearing stages are adapted for 3-axis micro-milling machine which is size of 200x200 mm². The air bearings in the stage are preloaded by permanent magnets to achieve desired bearing clearance and stiffness for vertical direction. As the stiffness of the air bearing is primary interests, static stiffness test were performed on XY stage in Z direction and Z column in Y direction. Dynamic test were performed on XY stage and Z column, respectively. Both static and dynamic tests were performed in different air pressure conditions. The vertical stiffness of XY stage is about 9N/μm where Y stiffness of Z column is much smaller as 1N/μm because of the large moment generated by Y force on the column.
Stochastic Reward Nets을 이용한 통신 프로토콜 검증기법에 대한 연구
노철우,박현희,윤현주 신라대학교 자연과학연구소 1999 自然科學論文集 Vol.6 No.-
In this paper, we describe validation techniques of communication protocol using Petri Nets. The Techniques which can validate protocol design specification written by SDL are constructed and protocol models are developed. Validation technique steps are as follows : SDL specifications are transformed into SRN, from which reachability graghs are obtained. By analyzing the graphs, validation properties such as reachability, boundness and liveness as well as logical errors in design are verified. SRN models for timer and retransmission, essential components of protocol are developed using SRN properties such as cardinality, multiple inhibitor arc, timed and immediate transitions.
Carbamate系 殺蟲濟 MIPC(o-Isopropylphenyl-N-methylcarbamate) 粉濟의 安定性에 關한 硏究
孫炫洲,朴魯東,朴昌奎 서울大學校 農科大學 1980 서울대농학연구지 Vol.5 No.2
Effects of moisture, pH, surface acidity and stabilizers on the stability of MIPC in the 2% dust formulations have been studied. MIPC dust formulations containing different levels of moisture and stabilizers were perpared from locally produced carriers, clay, talc and kaolin. The formulated MIPC dust formulation were subjected to thermo-accelerated test. The results are summarized as follows: 1. As regard to MIPC stability to moisture content, clay or kaolin based MIPC dust formulations was most stable when the carriers were used as received. Talc based MIPC dust was, however, most stable when moisture content of the carrier was adjusted to 1%. 2. Effects of stabilizers were best demonstrated when HMT, urea and PAP were added to talc based MIPC formulations. In general, stabilizing effects of varioul stabilizers were meagre in the clay based dust. The PAP alone had pronounced stabilizing effect in the kaolin based formulations. 3. Among three carriers, clay excelled itself over compatibility with MIPC in the dust formulations. 4. concentration of either HMT or urea at 5% showed greater stabilizing effect compared with those at 3%. 5. Among laboratory formulated MIPC dust formulations, clay I+MIPC+urea(5%), clay I+MIPC+urea(3%), clay II+MIPC+HMT(5%) and talc I+MIPC+urea(5%) proved equal or even superior to the commercial MIPC dust by the thermo-accelerated test.
Sang Mi Ro1,Sung Ho Her,Sol Mi Huo,Kuhn Park,Jong Bum Kwon,Dong Jae Lee,Hyun Jin Noh 조선대학교 의학연구원 2015 The Medical Journal of Chosun University Vol.40 No.3
Left ventricular (LV) thrombi may be caused by various conditions, particularly myocardial infarction. In most cases, LV thrombus occurs in patients with a significantly reduced ejection fraction. A LV thrombus is extremely rare in patients with normal LV function. We report a case of LV thrombus initially detected on transthoracic echocardiography and confirmed using cardiac magnetic resonance imaging in a patient with normal LV wall motion. We highlight the rarity of this condition and the usefulness of cardiac magnetic resonance imaging in the diagnosis of LV thrombus.
토끼에서 Etofenprox와 Spinosad 합제의 국소자극성 시험
황윤환,김명석,송인배,박병권,양승호,임용현,송치용,안성한,남현수,임정교,정상일,명노일,윤효인 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1
This study was performed to evaluation the skin and eye irritation of etofenprox 8% and spinosad 4% combination in male New Zealand White rabbits. In skin irritation test, the combination of etofenprox and spinosad did not showed any change of body weight but caused slight skin irritation with the P.I.I. (primary irritation index) value 0.25. The etofenprox and spinosad combination showed severe eye irritation 1 h, 24 h, 48 h, and 72 h after ocular treatment, having the A.O.I. (acute ocular irritation) value of 37.3. Therefore, these result indicated that the combination of etofenprox and spinosad might be irritant formulation on eye and skin.
Glionitrin B, a Cancer Invasion Inhibitory Diketopiperazine Produced by Microbial Coculture
Park, Hyun Bong,Kim, Young-Joo,Park, Jin-Soo,Yang, Hyun Ok,Lee, Kang Ro,Kwon, Hak Cheol American Chemical Society and American Society of 2011 Journal of natural products Vol.74 No.10
<P>A new diketopiperazine, glionitrin B (<B>1</B>), was produced using a microbial coculture of the fungus <I>Aspergillus fumigatus</I> KMC-901 and the bacterium <I>Sphingomonas</I> sp. KMK-001 that were isolated from acidic coal mine drainage. The structure of <B>1</B> was determined to be (3<I>S</I>,10a<I>S</I>)-dithiomethylglionitrin A. This structure was determined by the analyses of extensive NMR data and the circular dichroism spectra of the natural product and a semisynthetic compound derived from glionitrin A. In contrast to glionitrin A (<B>2</B>), glionitrin B (<B>1</B>) is not cytotoxic against the human prostate cancer cell line DU145. However, compound <B>1</B> caused suppression of DU145 cell invasion, producing 46% inhibition at 60 μM.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jnprdf/2011/jnprdf.2011.74.issue-10/np200563x/production/images/medium/np-2011-00563x_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/np200563x'>ACS Electronic Supporting Info</A></P>
The Effects of Exercise Intensity on Cytokines
Ro, Soon Duck,Hwang, Ji In,Sung, Hye Ryen,Youn, Mi Suk,Kim, Eun Hee,Jung, Jung Hwa,Gong, Byong Hak,Chae, Jong Hoon,Park, Cheol Ho,Park, Hyun Tae,Park, Sang Kap 대한스포츠의학회 1998 대한스포츠의학회지 Vol.16 No.2
운동은 건강한 사람의 면역기능에 영향을 미친다는 중요한 보고가 있다. 그러나 면역학상의 변화와 운동강도, 지속시간 사이의 연관성은 일반적으로 불분명하다. 본 연구는 운동지속시간과 3단계의 운동강도에 의한 혈액 단핵세포들의 난응에 대한 변화를 구명하기 위해서 수행되었다. 19∼20세의 여자 대학생 8명을 대상으로 최대운동강도의 40%, 60%는 각각 40분간, 75%는 all-out까지의 트레드밀 운동을 실시하여 백혈구아형 및 사이토카인에 미치는 영향을 분석하였다. 신장 158.6cm, 체중 53.5kg, %fat 22.5%, 체중당산소섭취량은 45.2ml/kg·min이며 leucocytes는 안정시보다 40%, 60%, 75% 운동 후에 감소하는 것으로 나타났고, lymphocytes는 안정시보다 40%, 60%, 75% 운동 후에 유의하게 감소하는 것으로 나타났다. monocytes는 안정시나 운동시 일정한 수준을 유지하며 유의한 변화는 없는 것으로 나타났다. IL1, IL2는 운동강도에 의해서 거의 영향을 받지 않는 것으로 나타났다. 본 연구는 lymphocyte와 monocyte 수에 있어서 각각 다른 운동강도가 주는 영향들을 설명하였다. 이러한 영향을 일시적이며 모든 강도의 수준에서 발생한다. 그들은 서로 관련되지만 IL1과 IL2의 순환하는 수치의 변화와는 연관이 없는 것으로 나타났으며, 이러한 cytokine의 변화는 단핵세포들의 동원에 대한 반영보다는 단핵 세포들의 기능적 현상의 변화에 의한 것이다.