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.

퍼지 전문가 시스템을 이용한 BLDC 전동기의 자동조정 PID 속도제어에 관한 연구

진광식,윤태성,권세현 國立 昌原大學校 産業技術硏究所 1998 産技硏論文集 Vol.12 No.-

This paper proposes the rule-based expert system with auto-turning of PID controller gain and shows the efficiency of fuzzy expert system for the speed control of BLDC motor. The PID controller gain tuned using RZN(refined ZN) formula to initial tuning and fuzzy expert system to subsequent tuning. The fuzzy expert PID control method proposed in this paper results in the reduction of overshoot, the rapid response and the robustness for disturbances and noise.

콘크리트 構造物의 混合모드 龜裂傳播모델(第1報)

陳致燮,張熙碩,崔顯泰,嚴長燮 부산대학교 공과대학 1989 硏究報告 Vol.38 No.-

This paper attempts to extract the crack tip stress intensity factors and to make a crack propagation model under mixed mode, from the finite element analysis of the concrete structures. In finite element analysis, all elements are initially assumed to be conventional quadratic isoparametric elements and are replaced by 6 node triangular singularity elements in the crack tip zone only. The stress intensity factors and the angle of propagation are carried out by displacement correlation technique and maximum circumferential tensile stress theory respectively. At the first part in a series of two papers, some numerical examples about the concrete SENB and DISK are presented to illustrate the practical effectiveness of the technique.

Thiamine결핍 유도후 쥐 전뇌의 성상교세포 Glial Fibrillary Acidic Protein(GFAP) 면역화학 활성도에 대한 변화

김승현,김희태,김주한,김명호,황세진,김명권,백태경 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

뇌성마비 및 Down증후군 아동의 섭식행동 양상

엄태진,김영진,남순현 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.1

심신 장애 아동중 섭식 장애가 심하게 나타나는 뇌성마비아 50명(평균 연령 12.6세)과 Down증후군아동 30명(평균 연령 9.8세)을 대상으로 섭식 행동양상을 평가하기 위해 아동을 직립 자세를 유지시킨 상태에서 우유와 콘프레이크를 혼합한 음식물을 주었을때의 구순폐쇄능,혀돌출 양상,혀운동 발달,턱운동 발달,저작 기능,연하시 과긴장과 과민반응 등의 섭식 행동양상을 비디오 화면상에서 반복 평가하여 아래와 같은 결론을 얻었다. 뇌성마비아와 Down증후군 아동은 연하 방법의 미성숙,구순폐쇄능의 감소,혀돌츨의 증가,혀와 턱운동의 미발달,저작 기능의 미발달이 나타났다. 포식시,음식물처리시의 구순폐쇄능은 뇌성마비아가 더 좋았다. Down증후군 아동은 음식물 처리사나 연하시 혀돌출이 많았으며 돌출시 혀의 위치도 뇌성마비아에 비해 더 전방에 위치하였다. 혀와 턱운동의 발달은 Down증후군 아동에서 덜 잘 발달되었다. 뇌성마비아에 있어서는 상순의 저긴장이 Down증후군 아동에 있어서는 혀근육의 저긴장이 나타났다. 과긴장과 과민반응은 주로 뇌성마비아에서 나타났다. It has been well documented that many cerebral palsy and Down's syndrome children exibit various types of abnormal eating patterns which mainly originate from underervelopment of oral functions. In this study, a method for evaluating the oral functions in the feeding of the handicapped children was developed and applide to evaluation of 50 cerebral palsy children(mean age:12.6) and 30 Down's syndrome children(mean age:9.8). Children were maintained upright position and were given milk and corn flake as feeding materials. The assessment scale consisted of swallowing pattern,lip sealing ability,tongue protrusion behavior,and developmental evaluation of tongue and jaw mavement,mastication ability,muscle hypertension,and tactile hypersensitivity. The oral mevement of the subject was video-taped in actual feeding session. The assessment,except for the evaluation of hypersensitivity,was carried out later on by using the images on the video display. The sollowing conclusions were obtained. Underdeveloped swallowing pattern,decreased lip sealing ability,increased tongue protrusion rate,underdeveloped tongue and jaw mevement,and mastication inability were observed. For sucking and mastication,lip sealing ability is better developed in Down syndrome group but for swallowing lip sealing ability is better developed in cerebral palsy group. In Down syndrome group, more tongue protrusion behavior is observed for mastication and swallowing and when protruded more anteriorly positioned than in the cerebral palsy group. Tongue and mandibular movement is better developed in Down syndrome group than in the in the cerebral palsy group.' The cerebral palsy group has upper lip hypotonicity and Down's syndrome group has tongue hypotonicity. Muscle hypertension and tactile hypersencitivity are more prevalent in the cerebral palsy group than in the Down's symdrome group.

Inhibitory Effect of Cordycepin on Human Platelet Aggregation

박화진,--,--,--,--,--,-- THE KOREAN SOCIETY FOR BIOMEDICAL LABORATORY SCIEN 2004 Journal of biomedical laboratory sciences Vol.10 No.1

Cordycepin separated from Cordyceps militaris is a major physiologic active component in Cordyceps militaris. The platelet aggregation is stimulated by Ca^(2+), which is either mobilized from intracellular endoplasmic reticulum or transported from extracellular space. cGMP antagonizes the actions of Ca^(2+). Based on these facts, we have investigated the effects of cordycepin on the mobilization of Ca^(2+) and the production of cGMP on collagen (10 ㎍/ml)-induced human platelet aggregation. Cordycepin potently stimulated the human platelet aggregation induced by collagen (10 ㎍/ml) in a dose-dependent manner. Cordycepin (500 μM) inhibited also the collagen-induced human platelet aggregation in the presence both 1 mM and 2 mM of CaCl_(2). These are in accord with the results that cordycepin inhibited the Ca^(2+)-influx on collagen-induced human platelet aggregation. These results suggest that cordycepin decrease the intracellular Ca^(2+) concentration to inhibit collagen-induced human platelet aggregation. Besides, cordycepin increased the level of cGMP on collagen-induced human platelet aggregation. This result is related with the decrease of intracellular Ca^(2+) concentration, because cGMP inhibits the mobilization of Ca^(2+). In addition, cordycepin inhibited the human platelet aggregation induced by LY-83583, inhibitor of guanylate cyclase. This result suggested that cordycepin inhibit the platelet aggregation by stimulating the activity of guanylate cyclase. In conclusion, we demonstrated that cordycepin might have the antiplatelet function by inhibiting Ca^(2+)-mobilization via the stimulation of the production of cGMP.

한국인에서 CC-SIT와 비교한 KVSS Test의 임상적 유용성 평가 : 예비연구 Pilot study

김진국,장현종,임채형,남태욱,심대보 건국대학교 의과학연구소 2003 건국의과학학술지 Vol.13 No.-

Background and Objectives: Sniffin' Sticks test is the test of nasal chemosensory performance based on pen-like odor dispensing devices. KVSS(Korean Version of Sniffin' Sticks) Test was developed as the "Korean olfactory test" using the odorants which are familiar to Korean. Authors evaluated the clinical validity of KVSS Test compared with CC-SIT (Cross-Cultural Smell Identification Test) in Korean. Materials and Methods: The subjects of this study were 25 normosmic volunteers who were divided into five groups according to age. Each group was 5 normosmic volunteers. And they consisted of 12 men and 13 women. KVSS Test and CC-SIT were used for the evaluation of olfactory function. Results: Our study showed the negative correlation between age and olfactory function test (CC-SIT score, KVSS Test I score and KVSS Test II score). Normosmia rate of KVSS Test was more higher than that of CC-SIT. Also KVSS Test had more familiar items for Koreans compared with that of CC-SIT. CC-SIT score and KVSS Test score showed showed the positive corrclation. And each test revealed high reliability in test-retest evaluation. Conclusion: The KVSS Test can be used as an olfactory function test for Koreans.

참지식 부직포여과 활성슬러지 시스템의 가정 오수처리 적용 타당성 조사 연구

임태진,서규태,이택순,문병현 7개 국립대학교 환경연구 논문집 공동발행 위원회 2002 환경연구논문집 Vol.2 No.1

An experimental study was conducted to investigate the applicability of non-woven fabric filter as an alternative separation material in membrane combined activated sludge process. The most advantage of the fabric filtration activated sludge system is the low operation and maintenance cost resulting from the ready available material and gravity filteration. The system was consisted of two reactors, anoxic and aerobic one with working volume of 0.28㎥ and 0.47㎥, respectively. The non-woven fabric filter module was immersed in the aerobic compartment for separation of activated sludge by gravity filtration. Although the system showed high potential to treat domestic wastewater the initial leakage of bio-solid from the reactor and reduction of permeate flux were main problems of the system. The initial flux of 0.4㎥/㎡/day reduced to 0.2㎥/㎡/day in 12 days operation at 133㎝ water head. During the stable operation period, average SS concentration of effluent was 1.8㎎/L showing 96.4% removal. Organic removal efficiency was 98.3% as COD_Cr and 91.6% as BOD with the effluent concentration, 14.4㎎/L and 1.5㎎/L, respectively. T-N removal efficiency was 60% at C/N ratio 4.5.

부비동내시경수술 후 후각기능의 변화

김진국,남태욱,임채형,장현종 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-

Background and Objectives: Rhinosinusitis is the most common cause of olfactory impairment and endoscopic sinus surgery is considered as a surgical procedure of choice for treating chronic sinusitis. CC-SIT (Cross-Cultural Smell Identification Test) consists of 12 items well known in most non-English-speaking cultures. Authors evaluated the therapeutic effects of endoscopic sinus surgery on olfactory dysfuction using CC-SIT. Materials and Methods: The subjects of this study were seventeen sinusitis patient who had undergone ESS from November 2001 through April 2002. All patients were divided into two groups according to nasal polyp and CT findings. CC-SIT was used for the evaluation of olfactory function. Results: Forty seven percents of patients had improvement in olfactory function postoperatively. No correlation was found between changes in CC-SIT score and nasal polyp and preoperative CT findings. Conclusion: It is concluded that nasal polyp and CT findings have no effect on olfaction.

자전거 에르고미터운동시 유ㆍ무산소성 역치수준의 근전도 변화

김기진,조현철,홍관이,정정진,손태열 龍仁大學校 體育科學硏究所 1991 體育科學硏究論叢 Vol.1 No.1

The aim of present study is investigate the change of IEMG and PEMG in the aerobic, anaerobic threshold by ventilation an blood locate concentration. Subjects of this study is adult sedentary men of age 32.18±4.28yrs. Subjects performed an incremental test on the bicycle ergometer from an initial work load of 0.5KP(60 rpm) to exhaustion by 3-min steps of 0.5KP. The results of this study was as follows: 1. The levels of relative exercises load in the ventilation, lactate, PEMG and IEMG by aerobic threshold were appeared 39.88±15.62%, 39.66±13.05%, 34.31±13.74% and 36.69±13.05%, respectively. It was not significant difference between variables. 2. The levels of relative exercise load in the ventilation, lactate, PEMG and IEMG by aerobic threshold were appeared 70.02±7.72%, 65.69±8.82%, 64.61±8.65% and 69.64±9.76%, respectively. It was not significant difference between variables. In this results above, It is considered that analysis methods by non-linear increase point of PEMG and IEMG related to both respiratory gas variables, blood lactate accumulation type and muscle function, muscle fiber recruitment type for determination of aerobic and anaerobic threshold.