Poster Ⅲ : Purification and Some Properties of Dihydroxyacetone Synthase in Acinetobacter sp . Strain JC1 DSM 3803

노영태,김영민 한국생화학분자생물학회 (구 한국생화학회) 1992 추계학술대회집 Vol.- No.-

표면조정제 입자 사이즈에 따른 인산망간 피막 특성에 관한 연구

노영태,김호영,변영민,이지환,현승균,박종규,서선교 한국표면공학회 2017 한국표면공학회 학술발표회 초록집 Vol.2017 No.5

Nd:YAG 레이저빔을 이용한 아연도금강판 (SECC)과 쾌삭강봉(SUM24L)의 용접에 관한 연구

노영태,김병철,김도훈,윤갑식 한국레이저가공학회 2001 한국레이저가공학회지 Vol.4 No.3

This work was carried out to apply a laser welding technique in joining between a Zn coated low carbon steel plate(SECC) and a free cutting carbon steel shaft(SUM24L) with or without Ni coating. Experiments were carried out and analysed by applying the FD(factorial design)method to obtain the optimum Laser welding condition. Optical microscopy, SEM, TEM and XRD analyses were performed in order to observe the microstructures in the fusion zone and the HAZ. Mechanical properties of the welded specimens were examined by microhardness test, tensile test and twist test. There was no trapped Zn in the fusion zone by EDS analysis. This means that during the welding process, Zn gas could be eliminated by appropriate shielding gas flow rate and butt welding gap. Ni coating itself did not influence on the tensile strength and hardness. However, twist bending strength and the weld depth of the Ni-coated free cutting carbon steel were lower as compared with those of the uncoated free cuffing carbon steel. It was attributed to a lower absorbance of laser beam to the shin Ni surface. According to the results of the factorial design tests, the twist bending strength of welded specimens was primarily affected by pulse width, laser power, frequency and speed.

HEMT를 사용한 Ku 대역 저잡음 증폭기 설계 ( Design of Ku band LNA Using HEMT )

노영태,송정근 대한전자공학회 1995 대한전자공학회 학술대회 Vol.1995 No.1

跳馬 몸펴 Tsukahara 뛰기의 運動 力學的 分析

노영태,윤양진,황영성 부산대학교 사범대학 1995 교사교육연구 Vol.30 No.-

Six gymnast of subjects (more than nine years of the gymnastic experienced) draw from P. city were utilized in this study. The purpose of this study was to find out the relationship between the takeoff stride and the takeoff force and the first peakforce and the second peakforce through the aid of cinematography and the force platform at the Tsukahara stretched. Also, relationship between the pre-flight (from the takeoff stride at board to horse contact) and post-flight (from contact horse to the first peak), displacement of center of gravity, and time from takeoff to the first peak were analyzed. From the data provide, kinematic analysis of Tsukahara stretched from board at vaulting horse. The conclusions are as follows : 1. It was found that subjects had shorter preflight distance than approach distance and longer board takeoff. 2. It was found that shorter support time of the first peakforce and the second peakforce, elevation of both force, and reduction of difference between both force with an instant stretch of knee is desirable to get more flight. 3. It was revealed that shorter time between contact horse and takeoff horse with an instant push horse back increased the turning power and time in the air then effects on flight distance. The flight distance was found gymnast B, A, F, E, C, and D, as order. So gymnast D. was the best record. 4. Gymnast B. C. E. and F. had the lower first peak stance, unstability, and shorter flight distance so their score were reduced.

Nd:YAG 레이저빔을 이용한 아연도금강판(SECC)과 쾌삭강봉(SUM24L)의 용접에 관한 연구

노영태,김도훈 한국레이저가공학회 2001 학술발표대회 Vol.2001 No.1

FD(Factorial design)법을 이용하여 최적의 용접 주사 조건을 구하였다. 특성치에 가장 유의한 인자로는 펄스폭, 레이저 출력, 주파수, 스피드 순이었고, 최적의 주사 조건은 레이저 출력 580W, 펄스폭 13ms, 주사속도 5mm/sec, 주파수 30Hz였다. 용접부에서 아연도금의 영향과 니켈도금의 영향을 고찰한 결과 최적의 주사조건에서 용접을 수행했을 때 아연과 니켈의 영향은 관찰되지 않았다. 아연도금강판(SECC)과 강봉(SUM24L) 그리고 니켈도금강봉(SUM24L)에 대하여 용접을 실시한 결과 경도, 인장강도 값에서는 차이가 없었고, 용융깊이와비틀림강도값에서는 니켈도금강봉의 용접에서 값이 약간 저하되었다. 이는 니켈표면의 반사도가 상대적으로 커 입열량의 저하로 인한 결과라고 사료된다. 경도와 인장실험결과 모재, HAZ, bead 순으로 값이 상승했고, 이는 레이저 용접 시 빠른 냉각속도로 인하여 용접부 조직이 미세화되었고, BEad부위는 일부의 마르텐사이트조직이 형성되어 있는 것으로 생각된다.

Evidence that the fully assembled capsid of Leishmania RNA virus 1-4 possesses catalytically active endoribonuclease activity

노영태,김은주,이현일,Margarita Saiz,Ricardo Carrion Jr,Jean L. Patterson 생화학분자생물학회 2004 Experimental and molecular medicine Vol.36 No.2

In this study, Leishmania RNA virus 1-4 (LRV1-4) particles purified from host Leishmania guyanensis promastigotes were examined for capsid endoribonuclease. Temperature optimum for the endoribonulease activity was found to be at 37oC to 42oC and the activity was specifically inhibited by the aminoglycoside antibiotics, neomycin, kanamycin, and hygromycin and by 100 mM levels of NaCl or KCl. To determ ine the catalytic domain of the capsid endoribonuclease activity, three point-mutation at cysteine residues at C47S (P1), C128/ 133S (P2), and C194R (P3) were prepared and each gene was constructed into baculoviruses and expressed in Sf9 insect cells. LRV1-4 capsid Nterminus (N2 and N3) and C-terminus (C1 and C2) deletion mutants (Cadd et al., 1994) were also examined by in vitro RNA cleavage assay. The results showed that the capsid mutants; C1, C2, N3, P1, and P2 were capable of forming proper virus-like particles (VLPs) and they all possessed the specific endoribonuclease activity. However, two assembly-defective capsid mutants, N2 (Nterminus 24-amino acids deletion) and P3 mutants, did not retain the specific endoribonuclease activity. Taken together, the results suggest that at least 24 amino acids from the N-terminal region and C194 residue in LRV1-4 capsid protein are functionally important for LRV1-4 viral assembly and the capsid endoribonuclease activity may be dependent upon the properly assembled LRV1-4 virus particles.

세계 정상 체조선수들의 링 연기내용 변화에 관한 연구

노영태,김명철,서봉환 釜山大學校 師範大學 2003 교사교육연구 Vol.42 No.-

The subject of this research includes twelve gymnasts ranking top four who took part in the Ring competition Ⅲ in 2000 Sydney Olympic Game, 2001 World Gynmasdcs Championship in Belgium, 2002 Busan Asian Game the comparative analysis result of their exercise according to the code of points is the at following. 1. Considering the number of the difficulties exercise constructs m the competition, It was 41 in 2000 Sydney Olympic Game, 41 in 2001 World Gymnastics Championship in Belgium and 40 in 2002 Busan Asian Gam. There was no big difference. In case of bonus point number taken at the difficulties D, E, SE, It was 20 in 2000 Sydney Olympic Game and 2001 World Gymnastics Championship, and 18 in 2002 Busan asian game. 2. In case of Group elments in special requirement, 13 in groupⅢ and 10 m-groupⅡ were indicated in 2000 Sydney Olympic Game and 15 in groupⅣ in 2001 World Gymnastics Championship, and 21 in groupⅣ 2002 Busan asian game, which is the highest. At exercise constructs of ring, it is current trend that strangth and support to elments in groupⅣ regined over 50%. 3. It is showed that all participants got the full bonus points by doing connection exercise constructs. These are higher in 2000 Sydney Olympic Game and 2001 World Gymnastics Championship than 2002 Busan Asian Game. 4. At the compare of swing difficulties versus strength difficulties. swing difficulties was done 52time(which is 43%) and strangth difficulties 68time(which is 57%) therefore we know that strangth difficulties appear more than swing difficulties at the construct of ring exercise.

마루운동 도움짚기와 손짚고 뒤돌기 동작의 운동학적 분석

노영태 釜山大學校 師範大學 1999 교사교육연구 Vol.37 No.-

The purpose of this study was to test a kinematical analysis of round off and back hand spring motion in floor exercise. For this study, 5 athletes of P. university were chosen as subject. 2 highspeed video cameras were utilized to film various parts of motions such as the distance of each section, speed, joint angle, displacement and velocity of the center of body gravity through the motions of round off and back hand spring as basic skills in the floor exercise. The results of this study are as follows: 1. In the sectional variation from round off to back hand spring, in the case of both feet taking-off in round off. It is better to push enough to have a long touchdown of back hand spring, and a short movement is good in the landing distance of back hand spring. 2. It is advantageous for the next action to take shorter back hand spring than round off. 3. In angles of each joint, it is 130° on the shoulder joint angles of round off touchdown. Though the position of back hand spring is good to parallel with the floor, this study particularly shows knee joint angle is average 83°, as somewhat lower degree. 4. In the skip action of round off, it appeared to be good that the center of body gravity should be low by leaning forward the physical position. 5. In the variation of velocity of the center of body gravity, the highest powerful jumping movement of KDG athlete in the phase 4 is desirable to contact with the next technique.

Rings 내리기 技의 變遷에 關한 硏究

魯永泰 釜山大學校 師範大學 1985 교사교육연구 Vol.11 No.-

This study was investigated and analized on the rings dismount skill of world outstanding gymnastic athletes from The 1952 Fifteenth Helsinki Olympic Games to The 1985 Asian Youth Games during the 33 years. The results were as followings; 1) There were no significant development in 1950s and 1960s, but a little changes; In early 1950s, salto backward on stretched to dismount skill was performed, middle 50s, salto backward stretched with 1/2 turn to dismount was prevalently done. In 60s, the changes, from salto backward tucked to dismount to dobble salto backward tucked dismount. 2. In 1970s, there were the most significantly developed in rings dismount skill; salto backward streched with 2/1 turn dismount, triple salto backward tucked to dismount, dobble salto backward tucked with 1/1 turn to dismount, streched double salto badkward to dismount, dobble salto forward tucked dismount, dobble salto forward tucked with 1/2 turn to dismount, salto forward with 1/2 turn and salto backward tucked to dismount. 3) In 1980s, dobble salto backward piked 1/1 turn to dismount and dobble salto backward tucked with 2/1 turn to dismount techniques were developed, but dobble salto backward tucked with 1/1 to dismount, triple salto backward tucked to dismount, dobble salto forward tucked to dismount methods were also continued. 4) The frequencies of using dismounts skill were as fowllows; In 60s, salto backward stretched 1/1 turn to dismount(80.6%), In 70s, dobble salto backward tucked with 1/1 turn to dismount (27.8%), In 80s, dobble salto backward with 1/1 to dismount (33.3%) and stretched dobble salto backward to dismount (30.3%). 5) The duration of using dismount skill was as follow; dobble salto backward tucked to dismount was used from 1966 to 1985 during 19 years, salto backward stretched with 2/1 turn to dismount was performed from 1954 to 1972 during 18 years, dobble salto backward tucked with 1/1 turn to dismount was showed from 1973 to 1985 during 12 years.