初生雛의 體重 및 臟器重量에 關한 硏究

河正基,金鍾涉,朴重錫 慶尙大學校 1980 論文集 Vol.19 No.1

本 試驗은 實用鷄인 Hisex와 Hybro의 種卵을 孵化시켜 發生直後의 初生雛에 대하여 體重, 腦, 眼球, 肺, 心腸, 腎臟, 胃, 卵黃?, 盲腸, 小腸, 結腸과 直腸의 重量을 測定하고, 各 項目의 平均과 標準誤差를 求하는 同時에 各項目間의 相關關係 및 回歸直線方程式을 調査하였든 바 그 結果는 다음과 같다. 1) Hisex의 調査項目中 體重은 35.312±0.324g, 腦의 重量은 0.873±0.009g, 眼球의 重量은 0.866±0.019g, 肺의 重量은 0.348±0.013g, 肝의 重量은 1.108g±0.015g, 心腸의 重量은 0.415g±0.010g, 腎臟의 重量은 0.292g±0.007g, 胃의 重量은 2.502g±0.045g, 卵黃?의 重量은 3.562g±0.186g, 盲腸의 重量은 0.294g±0.018g, 小腸의 重量은 1.200g±0.026g, 結腸과 直腸의 重量은 0.169g±0.009g이였다. 2)Hybro의 調査項目中 體重은 36.569±0.295g, 腦의 重量은 0.912±0.009g, 眼球의 重量은 0.920±0.019g, 肺의 重量은 0.386±0.011g, 肝의 重量은 1.140±0.051g, 心腸의 重量은 0.401±0.013g, 腎臟의 重量은 0.280±0.010g, 胃의 重量은 2.723±0.045g, 卵黃?의 重量은 3.464±0.158g, 盲腸의 重量은 0.446g±0.028g, 小腸의 重量은 1.414±0.040g, 結腸과 直腸의 重量은 0.203g±0.016g이였다. 3) Hisex와 HYbro의 各 測定成績間에서 相關關係를 調査한 結果 正과 負의 相關이 있었다. This study was carried out to measure the weight and correlation between body weight and each visceral organs in commercial day old chicks(Hisex and Hybro). Names of the visceral organs measured are brain, eyeball, llung, liver heart, kidney, stomach, yolk sac, cecum, small intestine and colon and rectum. The results obtained are summarized as follows: 1. Average weight of body, brain, eye-ball, lung, liver, heart, kidney, stomach, yolk sac, cecum, small intestine and colon and rectum of the Hybre chicks(Meat type)and standard error to the items measured were 36.569±0.324g, 0.873±0.009g, 0.860±0.019g, 0.348±0.013g, 1.108±0.015g, 0.415±0.010g, 0.292±0.07g, 2.502±0.045g, 3.562±0.186g,0.294±0.018g, 1.200±0.026g and 0.167±0.009g, respectively. 2. Average weight of body, brain, eye-ball, lung, liver, heart, kidney, stomach, yolk sac, cecum, small intestine and colon and rectum of the Hybre chicks(Meat type) and standard error to the items measured were 36.569±0.295g, 0.912±0.109g, 0.920±0.019g, 0.386±0.011g, 1.140±0.051g, 0.401±0.013g, 0.280±0.010g, 2.723±0.045g, 3.464±0.158g, 0.446±0.028g, 1.414±0.040g and 0.203±0.016g, respectively. 3. Positive correlation and inverse correlation between items investigated in Hybro and Hisex were found.

大黃水渡液이 물김치의 酸度變化에 미치는 影響

金英嬉,李正秀,蘇三燮,陳甲德 嶺南大學校 環境問題硏究所 1989 環境硏究 Vol.8 No.2

Effect of water and ethanol extract of Rheum coreanum N. on changes of pH in different NaC1 concentration and temperature in Juicy Kimchi was investigated and then, compared with it to sodium benzoate. The following results were obtained. 1. Addition of 0.03% water and ethanol extract of Rheum coreanum N. to juicy Kimchi preserved above pH 4.0 in whole experimental period at 30℃. 2. Addition of 0.1% water extract of Rheum coreanum N. induced less pH changes than control and preserved above pH 4.5 after 7 day at 18℃. 3. It was observed that water estract of Rheum coreanum N. was greater than ethanol extract in preservative potency. 4. Preservative potency of 0.03% water extract of Rheum coreanum N. was superior to 0.1% sodium benzoate. 5. Addition of 0.03% water extract of Rheum coreanum N. prolonged the tasty period of juicy Kimchi, which was more effective than sodium benzoate.

灣曲管路의 水理特性 分析을 위한 數値的 解析

朴魯參,李曾錫,安勝燮 慶一大學校 1993 論文集 Vol.9 No.1

This study has been aimmed at the development of the analytical model for the hydraulic characteristics of miter bend by Finite Element Method(FEM). In this study, velocity potential function is defined such that the negative of its derivative with to distance in any direction yields the velocity in that direction. Thus all practical flow must satisfy the Laplacian equation in terms of velocity potential function. Therefore, the Finite element method for the solution of the Laplace equation is presented. The proposed analytical technique which deal with the potential flow was applied to the bend-type pipe, and which was computed velocity compotent for the finite element mesh. From results of this study, the velocity modulus for elements of corner region indicates the flow perturbation.

최대근력부하와 폭발적 근력부하에 의한 신경-근피로와 그 회복과정 비교 분석

유관호,이무연,이승훈,김민섭,육조영,임정일,임완기,김대경 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

The result which was gained from this study is as follows. From the conclusion of this study it was confirmed that resistant motion at high level strength brings about rise in density of lactate in blood at the same time decline of muscular power and generates acute fatigue of nerve-muscle accompanied by decline in electrical activity of muscle. On the other hand explosive loading produced fatigue at body center and decline in nervine-muscular activity particularly for men, In case of women explosive load did not produce fatigue in the same level as men and they were also quicker in recovery after exercise. Based on 2 types of loading method used in this study there was clearly difference in the process of restoration from resistant motion. For greater decline in muscular power and electromyogram activity more longer period of recovery was require.

Fabrication of a 3D cell chip for evaluation of anticancer drug on cancer cell

Kwang-Sup LEE,Jeung Min LEE,Kwon-Jai LEE,Jae-Soo SHIN,Jeung Hee AN 한국진공학회 2016 한국진공학회 학술발표회초록집 Vol.2016 No.8

수질관리 : 호소수질의 대기오염물질침적 영향에 대한 연구 (1)

황경섭 ( Kyung Sup Hwang ),장남익 ( Nam Ik Chang ),정종범 ( Jong Bum Jeung ),허유정 ( Yu Jeung Huh ),안균환 ( Gyun Hwan An ) 대한상하수도학회 2007 공동추계 학술발표회 논문집 Vol.2007 No.-

수질관리 : 호소수질의 대기오염물질침적 영향에 대한 연구 연구(1)

황경섭 ( Kyung Sup Hwang ),장남익 ( Nam Ik Chang ),정종범 ( Jong Bum Jeung ),허유정 ( Yu Jeung Huh ),안균환 ( Gyun Hwan An ) 한국물환경학회 ( 구 한국수질보전학회 ) 2007 공동 추계학술발표회 Vol.2007 No.-

탐진강 수계의 토양 및 저질토가 수질에 미치는 영향연구

황경섭 ( Kyung Sup Hwang ),허유정 ( Yu Jeung Huh ),정종범 ( Jong Bum Jeung ),장남익 ( Nam Ik Chang ),안균환 ( Gyun Hwan An ),문세영 ( Sae Young Mun ),박상준 ( Sang Jun Park ) 한국물환경학회 ( 구 한국수질보전학회 ) 2008 공동 추계학술발표회 Vol.2008 No.-

分生胞子數 및 營養狀態가 대두갈색무늬병균의 分生胞子 發芽에 미치는 影響

Jeung Haing Oh,Hoo Sup Chung 한국응용곤충학회 1984 한국응용곤충학회지 Vol.23 No.1

대두갈색무늬병균의 포자발아(分生胞子發芽) 미치는 외부영양공급(外部營養供給) 및 self-inhibitor의 영향(影響)을 조사하여 다음과 같은 결과(結果)를 얻었다. 1. 갈색무늬병균의 포자발아율은 감자한천배지 및 대두잎조각을 첨가한 증류수에서는 양호하였으나 살균된 증류수에서는 극히 불량하였다. 2. 갈색무늬병균의 포자발아에는 탄소원의 외부공급이 절대 필요한 것으로 보였으며 인산, 가리 등은 큰 영향이 없는 것으로 보였다. 3. 탄소원으로서는 가용성 전분이 가장 효과적이었고 다음이 포도당, 유당 등이었으며 포도당의 경우 농도에서 가장 높은 발아율을 보였다. 4. 포자발아율은 포자밀도가 높을수록 현저히 감소하여 포자농도 이상에서는 거의 발아하지 않는 것으로 보아 self-inhibitor가 존재하는 것으로 보였다. 5. 기질(基質)을 세척한 포자의 발아율은 세척하지 않은 포자의 발아율에 비해 낮았으며 이러한 현상은 포자농도가 이상으로 증가할 때 더욱 현저하였고 건조된 한천배양기위에는 발아율 감소가 현저하였다. Conidial germination of Septoria glycines Hemmi, brown spot fungus of soybean, was studied by slide germination test. Poor conidial germination of S. glycines was observed on sterile distilled water, but potato dextrose agar(PDA) and distilled water floated with soybean leaf disc furnished a satisfactory medium for conidial germination. Exogenous supply of carbon source was essential for conidial germination, while phosphorous and potassium were not evident as that for carbon. Soluble starch was the most suitable as a carbon source for conidial germination and followed by D-glucose, D-galactose and lactose in that order. Maximum germination was attained in the . concentration of glucose. Germination was decreased with increment of conidial concentration and was almost completely suppressed in the density of 10,000 conidia per . It suggested existing a self-inhibitor(s). Non-washed conidia germinated more than washed conidia and this was obvious when the conidia density was over conidia per on the dry agar block.

RE-13 : Pregnancy rate according to hatching status of assisted hatching embryos

( Jeung Ju Eun ),( Ko Gyung Rae ),( Joo Jong Kil ),( Lee Kyu Sup ) 대한산부인과학회 2012 대한산부인과학회 학술대회 Vol.99 No.-

There is no consensus about the time interval between the assisted hatching procedure and embryo transfer (ET). When we performed ET, the embryos are in the expanding state or hatching state. There might be difference of pregnancy rate between these two embryo states although all embryos undergo assisted hatching procedure. In this article, we compared the pregnancy rate according to the hatching states of assisted hatching embryos in frozen-thawed cycles. After COS & ovum pick up procedure, all embryos were cultured to blastocyst stage and all blastocyst-stage embryos were frozen. During thawing process, we performed assisted hatching by ICSI pipettes. Before embryo transfer, we observed the embryo hatching state. If the embryo protuding from zona pellucida, we named it hatching embyos, but at the expanding state, we named it expanding embryos. Retrospectively, Group 1 includes only expanding blastocysts, group 2 consists with one expanding and one hatching blastocysts and group 3 was composed with only hatching states of blastocysts. Retrospectively, we analysed the clinical outcome between three groups. There were no differences in age, infertility cause, BMI, infertility durations, gonadotrophin level and male age between three groups. The chemical pregnancy rate was 45% in group 1, 62% in group 2 and 75% in group 3. The clinical pregnancy rate was 35% in group1, 48% in group 2 and 79% in group 3. The clinical outcome was better in group 3 but the statistical significance was not observed. Same assisted hatching procedure was applied to all the embryos, but some embryos were in expanding state, others in hatching state. We are not sure the factors affecting hatching process. But, maybe the oocyte or embryo quality is the main factor and the time interval from thawing to transfer could be one of factors. This hypothesis must be evaluated for better pregnancy rate. If this hypothesis is true, we have to wait until the embryo goes into the hatching process.