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장봉석(B. S. Jang),한광수(K. S. Han),김광호(K. H. Kim),이용한(Y. H. Lee),김국진(K. J. Kim) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The latest trend of offshore plant that there are many demands for Line pipe for oil and gas mining, separation, transportation, pretreatment, storage and processing executed as plant of deep ocean resources production increasingly. The major customer of SAW pipe need to develop new technology of large-diameter steel pipe SAW(Submerged Arc Welding) applied replaced with a drawing-type SAW Seamless steel pipe. In this paper shows our study about mechanical properties which is two type of SAW pipes manufactured by press bending after removing inside welding seam.
정상월경주기및 클로미펜을 이용한 배란유도 월경주기에서의 난포성장에 관한 연구
장윤석,이진용,문신용,김정구,임용택,한광수,Chang, Y.S.,Lee, J.Y.,Moon, S.Y.,Kim, J.K.,Lim, Y.T.,Han, K.S. 대한생식의학회 1986 Clinical and Experimental Reproductive Medicine Vol.13 No.1
Follicle monitoring in the normal and clomiphene·stimulated cycles were analyzed in the Seoul IVF and ET (In vitro fertilization and embryo transfer) program. Ovarian follicular diameters were measured by the real·time sector scanner and plasma estradiol levels were assayed by radioimmunoassay methods during periovulatory period. The maximum follicular sizes of the clomiphene-stimulated and normal cycles were 21.1+-3.4mm and 19.2+-0.8mm, respectively. The peak levels of plasma estradiol in the clomiphene-stimulated and normal cycles were 10538+-553.6ng/ml and 298.3+-39.6pg/ml, respectively. Daily growth rate of the follicular diameters of the clomiphene-stimulated and normal cycles were 2.1mm and 1.9mm, respectively. Mean follicular number of the clomiphene-simulated and normal cycles were 2.28+-1.12 and 1.12+-0.21, respectively. There was a good statistical correlation between the mean follicular diameters and the plasma estradiol levels in the normal ovulatory and c1omiphene-stimulated ovulatory menstrual cycles (p<0.05). Our data revealad that the mean follicular diameter and the plasma estradiol level prior to HCG administration in IVF and program should reach at the level of 17.8+-3.0mm and 949.4+-487.1 pg/ml, respectively.