Application of Artificial Insemination Technology for Dairy Breeding in Mongolia

Hyun‐Tae Jo,Jong‐In Jin,Seong‐Su Kim,Byung‐Hyun Choi,Tumor Baldan,Jung‐Gyu Lee,Yun‐Shik Kim,Sam‐Churl Kim,Il‐Keun Kong 한국동물생명공학회(구 한국동물번식학회) 2011 발생공학 국제심포지엄 및 학술대회 Vol.2011 No.1

This study was focused on improvement of milk production in Mongolia dairy industry by artificial insemination (AI) technology, of which was supported from ODA project of KOICA in Republic of Korea. The study was started from January 2009 to present and 3rd years in this year. So, all data, especially synchronization and pregnancy of dairy cows (Holstein) will be summarized in final result in this year. For synchronization, total 81 dairy cows selected from 4 private farms that were 38, 30, 8 and 5 in Undarmal milk, Onjin (Enkhbayer), Jargalant, and BRM School, respectively. All the dairy cows were injected intramuscular (IM) of 5 ml PGF2α in the vulva and detected estrus 2 to 3 days after PGF2α injection. Total 78 out of 81 dairy cows (96.3%) were detected estrus by only 1 time injection of PGF2α. The dairy cows that were induced estrus, inseminated with 0.5 ml dairy frozen semen by conventional AI techniques. The pregnancy diagnosis of the AI dairy cows was detected by uterus palpation after 60 days of insemination. Total 75 from 78 inseminated dairy cows (90.1%) were diagnosis pregnant. The estrus induction and pregnant rate were very effective using PGF2α injection and conventional AI techniques in Mongolia dairy cow. The results indicated that AI after estrus induction in Mongolia dairy cows could be applied to dairy breeding technology to improve the breeding efficiency and milk production.

클럽 샤프트(Club Shaft) 특성에 따른 골프 스윙(Golf Swing)동작 분석

김성일,김기형,김형수,이현섭,김진욱,안찬규,김희진 한국운동역학회 2002 한국운동역학회지 Vol.12 No.2

본 연구는 클럽 샤프트의 대표적인 재질인 그라파이트(graphite)의 유연한(flexible) 클럽 샤프트(club shaft)의 특성에 따라 피험자가 운동학적(kinematics) 요인이 되는 관절의 각변위, 각속도, 각가속도, 클럽헤드의 속도와 가속도와 같은 변인들이 어떻게 적응하는지 비교 분석하여 보다 효율적인 드라이버 선택에 도움을 주며 샤프트 특성에 따른 신체관절의 움직임에 대한 자료를 제시하고자 하였다. 고속 카메라 2대의 속도는 500fps로 하였고 각 regylar,stiff, x-stiff, 자신의 클럽을 포함 각 4개의 클럽을 사용하여 각 클럽당 3번씩 촬영하였으며 목표방향에서 20m이상 벗어나는 경우의 촬영은 다시 촬영하였다. 본 연구에서는 디지타이징(digitizing)을 신체 9개 마커는 강체로 가정된 클럽과 신체분절 모델로 정의하였으며 2 대의 카메라(500fps)로부터 얻은 avi화일을 컴퓨터에 저장하고 자료로부터 Butterworth 6th order recursive digital filter를 사용하여 1차 자료를 smoothing 하고 DLT를 이용하여 3차원 좌표를 구성하도록 한다. 좌표값을 얻기 위하여 kwon3d v3.0을 이용하였다. 본 실험은 피험자 스스로 클럽의 특성에 따라 스윙의 속도를 달리 하기 때문에 스윙의 시간이 달라지며 어느 정도 클럽이 강성에 따라 스윙시간이 빨라지는 결과로 나타났다. 이것은 피험자가 샤프트가 강성(stiffness)에 따라 스윙 속도를 빨리 하게 되는 원인이 되는 것으로 생각된다. 어깨의 각변위는 클럽이 regular의 경우 임팩트에서 각속도를 계속 유지하고 있으며 stiff, x-stiff의 경우에는 어깨의 움직임이 임팩트에서 급격하게 감소되는 것을 알 수 있다. 이것은 팔의 동작과 클럽의 힘을 크게 하기 위한 동작으로 생각된다. 어깨 각속도는 클럽이 stiff할수록 각속도가 큰 감속하는 것으로 나타났다. 손목속도는 regular 클럽의 경우 손목의 감속이 늦게 되고 임팩트에서 손목의 감속이 적게 하는 것으로 나타났으며 stiff와 x-stiff의 클럽에서 임팩트 시에 순간적인 감가속으로 인해 클럽의 속도를 증가시키고 있다. 임팩트 시에 손목의 감가속은 클럽헤드의 임팩트 시 속도를 증가시키는 결과를 보였다. 클럽헤드는 regular 클럽이 임팩트전에는 속도 증가가 커지는 결과와 일치된 결과를 보이고 있다. The purpose of this study was to find the rational method to analyze golf swing with specific property of club shaft. Three subjects were filmed by two high speed digital cameras with 500fps. The phase analyzed was downswing of each subject. The three-dimensional coordinates of the anatomical landmarks were obtained with motion analysis system Kwon3d 3.0 version and smoothed by lowpass digital filter with cutoff frequency 6Hz. From these data, kinematic and kinetic variables were calculated using Matlab(ver 5.0) The variables for this study were angular velocity and accelerations, which were calculated and following conclusions have been made : 1) Golf swing time of stiff club is faster than that of regular club. 2) In shoulder joint motion of swing with the stiff club, x-stiff showed mort rapid negative acceleration than that of regular club. 3) In regular club, the velocity of club head would be more effective velocity, which was increasing, than those of other clubs before impact. 4) In wrist joint motion of swing with stiff club, x-stiff club showed faster than regular club in the downswing and impact more rapid negative acceleration.

동종 골수이식 후 만성 이식편대숙주질환과 동반되어 신증후군으로 발현된 IgA 신병증 1예

정철권,김현수,박준성,정성현,조도연,최진혁,남동기,임호영,김명성,신규태,임현이,김효철 대한조혈모세포이식학회 1999 대한조혈모세포이식학회지 Vol.4 No.2

동종 골수이식 후 발생하는 신기능부전은 원인이 다양하여 감별에 어려움이 있다. 만성 GVHD는 흉선의 기능저하에 따른 면역관용의 실패로 발생되는 자가면역현상에 의해 발생되는 것으로 알려져 있으며 드물게 신장을 침범하여 신증후군을 일으키기도 한다. CaA의 용량을 줄이거나 투약중지 후 발생한 만성 GVHD에 동반된 신증후군의 경우 조기에 신조직검사를 시행하여 감별진단하고 CsA의 용량을 증량하거나 재투약하여 좋은 치료 결과를 보일 것으로 기대된다. 저자들은 문헌고찰을 통해 동종 골수이식 후 발생된 신증후군이 유사한 임상양상을 보이며 발생기전에 만성 GVHD와 자가면역현상이 연관되어 있음을 확인하였으며 동종 골수이식 후 신증후군의 임상양상을 보이는 환자에서 병리조직학적으로 lgA 신병증을 진단하고 이러한 lgA 신병증이 발생기전에 만성 GVHD와 자가 면역현상이 연관되어 있을 가능성을 최초로 확인하였으며 CsA를 이용하여 성공적으로 치료한 경험을 하였기에 보고하는 바이다. Renal insufficiency is occasionally encountered in allogeneic bone marrow transplantation and its cause is difficult to ascertain. Chronic graft-versus-host disease (GVHD) related to thymic dysfunction is immune-mediated and involves autoreactivity of T-lymphocytes derived from donor marrow to recipient's major histocompatibility complex(MHC) minor antigens. The clinical mainifestations of chronic GVHD are similar to those of autoimmune disease but kidney involvement is rare. Few cases of nephrotic syndrome with membranous nephropathy or minimal change nephrotic syndrome have been reported to be associated with chronic GVHD in allogeneic bone marrow transplant recipient especially after cyclosporine A(CsA) withdrawal, and these cases have responded well to CsA. Therefore, it is prudent to differentiate the cause of post-transplant renal insufficiency using renal biopsy and to start CsA in a case of nephrotic syndrome associated with chronic GVHD as early as possible. We report a case who had a massive proteinuria during the post-allogeneic marrow transplantation period. The cause of nephrotic syndrome was diagnosed as IgA nephropathy by renal biopsy. The patient was successfully treated with reintroduction of CsA.

물결합재비 및 단위수량에 따른 고유동콘크리트의 제공학적 특성에 관한 실험적 연구

김규용,한장현,신동주,신홍철,김무한 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1

Recently the study on high flowing concrete which has high workability and non-compacting is being proceeded actively in the university and corporative laboratory. There are some cases that has been applied to the field. This high flowing concrete has higher fluidity and segregation resistance than Plain or flowing concrete. And it is being focused as a remarkable know-how which can make high-quality concrete and reduction effect of labor force. This properties of high flowing concrete are influenced by the relationship of several factors; binder content water binder ratio and unit water content. It is the aim of this study to propose reference data at mix design of high flowing concrete, after comparing and analyzing the fluidity and strength properties of high flowing concrete according to water binder content ratio and unlit water content.

O_3/활성탄에 의한 고도정수처리에 미치는 기존처리공정의 영향에 관한 연구

김현정,서규태,문병현,이택순 7개 국립대학교 환경연구 논문집 공동발행 위원회 2001 환경연구논문집 Vol.1 No.1

The effect of conventional process, such as coagulation, sedimentation and rapid sand filtration, on O_3/GAC was evaluated for stable operation of the advanced treatment process. Five years long term water quality data was analyzed for a water treatment plant adopting O_3/GAC. Treatment efficiency of unit process in the plant was also monitored for 7 months(from 2000. 11 to 2001. 5) to investigate the pre-treatment effect on the operation of the process. Despite significant seasonal variation of raw water quality, treated water of the plant was good enough to meet drinking water quality standard. However effluent turbidity (1NTU) of sand filter was relatively high compared to the guideline that turbidity of filtered water should be lower than 0.3NTU for the effluent turbidity, 2NTU, of sedimentation tank. It was observed that effluent organic compound of sand filter gave an adverse effect on the running time of GAC filter. This phenomenon could be deduced from the correlation of the effluent water quality of sand filter and GAC in terms of TOC and UV-254. Therefore more sophisticated operation, such as adopting enhanced coagulation, should be given to the conventional process for stable and extended operation of GAC filter to produce safer drinking water even at deteriorated raw water quality.

진양호 유입수의 홍수기 오염부하 및 수질특성

김영충,서규태,문병현,이택순 7개 국립대학교 환경연구 논문집 공동발행 위원회 2001 환경연구논문집 Vol.1 No.1

This study is to evaluate the characteristics of pollution load into lake Jinyang by flooding. Water quality of Kyongho and Duckcheon river, which are major tributary of lake Jinyang, was analyzed during rainy season. Increased pollution load was observed at initial stage of rainfall. This was caused by pollutants washed out of non-point sources at initial run off. It was considerable that much higher pollution load was measured during the flood than the value calculated using loading rate.

2002년과 2007년 건강검진 수진자 특성비교

김윤진,김영주,이정규,박현지 부산대학교 병원 암연구소 2009 부산대병원학술지 Vol.- No.25

Clow-Pole형 PM스텝모터의 동특성

김덕현,김탁규,홍정표 國立 昌原大學校 産業技術硏究所 1997 産技硏論文集 Vol.11 No.-

In this paper, the static and dynamic characteristics of clow-poled PM step motor is analyzed by Finite Element Method. Step by step technique coupled with circuit and mechanical equation are performed. And moving line technique is applied to reduce the computing time when unit step response and dynamic characteristics are analyzed. Driving circuit for experiment is made and to conform the validity of this study and analysis results are compared with experimental ones.

플라즈마를 이용한 고온 선삭가공에서 가공표면 품질에 미치는 용융스패터의 영향

김진남,최규현 三陟大學校 産業科學技術硏究所 1999 産業科學技術硏究論文集 Vol.4 No.-

The Plasma Hot Machining(PHM) has been well known to improve the machinability of high hardness material. However, one of the main disadvantage of Plasma Hot Machining is the contamination of machined sufaces by melting spatter of the work piece. In this paper we investigate the effect of plasma heating point on machining suface contamination.

아동전문병원을 위한 전용서체에 관한 연구

김현철,김용우,최영규 서울보건대학 1997 서울보건대학 부설 병원경영연구소 논문집 Vol.3 No.1

The direction of the typeface of children's hospital helping the development of hospital's image and the propagation of patient's emotion, having good feeling of hospital is as follow; (1) In a children's hospital, there is almost no case having perpendicular writing or mixing Korean and chinese character. A combination letter type is the letter having both varity and uniformity in terms of moulding. The typeface having combination type is proper as the combination letter type is building in the cost with 1/8 degree compared to the complete letter type. (2) When considering typeface for a children's hospital, the simple letter type has good impression which is more distinguishable compared to Ming type. (3) The association of letters and such objects as animals, flowers, insects, birds and so on in the familiar style for children makes the image of hospital distinguishable. Even this case, the simple style make distinguishable and help good feeling for children compared to the detailed description. (4) Children like solid color and can make the distinction of color more distinguishable than light and darkness.