호르몬 添加가 돼지 卵胞卵의 體外成熟과 體外受精에 미치는 影響

權建五,鄭英彩,金昌根,尹鍾擇,催善昊,柳範龍 한국동물생명공학회(구 한국동물번식학회) 1990 Reproductive & developmental biology Vol.14 No.3

돼지의 전침 마취에 관한 연구

권건오,김인봉,이성호,이성옥,김덕환,조성환,김무강,김명철,유명조 한국임상수의학회 1999 한국임상수의학회지 Vol.16 No.2

To establish the electroacupuncture anesthesia for pigs, 6 piglets (Landrace mixed, 1 month old, 3.7~5.3 kg, female: 3 heads and male: 3 heads) were examined. The acupoints used for porcine electroacupuncture anesthesia were An-shen, and Tian-ping and Bai-hui. After horizontal insertion of needle to left and right An-shen, and perpendicular insertion to Tian-ping and Bai-hui, respectively, positive electrode was connected at right An-shen and Tian-ping, and negative electrode was connected at left An-shen and Bai-hui using veterinary electroacupuncture anesthesia apparatus, respectively. Electric condition was 3 V and 30 Hz. To examine the effect of electroacupuncture anesthesia, laparotomy (4 heads) and castration (2 heads)were applied. The induction time of electroacupuncture anesthesia was very rapid and about 1 minute, and pain of the body surface including the extremities was not detected. As for the reactions with electroacupuncture anesthesia, the head was directed to backward, nasal part was curved to one side, and blepharum was closed in part of changed nasal part. In addition, consciousness was vivid, and muscle tension and lift of the tail were observed in early stage but was relaxated afterwards. The pain was not found during incision and suture, bleeding was comparatively small volume and the class of anesthesia effect was excellent.

쥐 Sertoli 세포돌기의 주사전자현미경적 연구

박영석,이성호,권건오 한국동물생명공학회(구 한국동물번식학회) 1998 Reproductive & developmental biology Vol.22 No.3

실험동물의 전침마취에 관한 연구

이성호,이성옥,권건오,김인봉,김덕환,조성환,김무강,김명철,유명조 한국임상수의학회 1999 한국임상수의학회지 Vol.16 No.2

To establish the electroacupuncture anesthesia for experimental animal, 5 adult rabbits (Newzealand-white species) and 6 rats (Spraque-dawley) were examined. The acupoints used for electroacupuncture anesthesia were Tian-ping and Bai-hui. After perpendicular insertion of needle to the acupoints, positive electrode was connected at Tian-ping and negative electrode was connected at Bai-hui using veterinary electroacupuncture anesthesia apparatus, respectively. Electric conditions were 2~3 V and 30 Hz in rabbits, and 1.5~2 V and 30 Hz in rats, respectively. To examine the effect of electroacupuncture anesthesia, laparotomy (2 heads), castration (2 heads) and ovariohysterectomy (1 head) were applied in rabbits, and laparotomy (5 heads) and castration (1 head) were peformed in rats, respectively. The induction time of electroacupuncture anesthesia was very rapid and approximately 1 minute, and pain of body surface including the extremities was not detected in rabbits and rats. As for the reactions with electroacupuncture anesthesia, consciousness was vivid, blepharoreaction was not observed and the tail was up at early stage but was down afterwards in rabbits. The same findings except cotinuous lifting of the tail were observed in rats. The pain was not observed during incision and suture, bleeding was comparatively small volume and the class of anesthesia effect was excellent.

분리막 접촉기를 이용한 바이오가스 고순도화

안효성,한진수,김계훈,권건오,염충균 한국막학회 2015 한국막학회 총회 및 학술발표회 Vol.2015 No.05

본 연구에서는 소수다공성 중공사막을 이용한 분리막 접촉기를 이용하여 바이오가스 내 이산화탄소를 제거하여 연료로 사용할 수 있는 고순도 바이오메탄을 생산하고자 하였다. 분리막 접촉기는 다공성 분리막의 세공을 통하여 기/액접촉이 효율적으로 이루어지므로 흡수법에 비해 작은 장치규모로도 바이오가스 정제가 가능하며, 기체와 액체의 직접접촉을 통해 흡수제에 대한 용해도가 큰 기체성분을 제거하기 때문에 빠른 물질전달 속도를 갖는 장점이 있다. 본 연구에서는 폴리프로필렌 중공사막을 이용하여 분리막 접촉기 모듈을 제작하여 시험하였다. 바이오가스 정제를 시험하기 위해 모델가스를 이용하였으며, 기체 유량, 액체 유량, 접촉기 모듈 형태, 운전압력을 변화시키며 시험하였고, 이를 통해 최적의 분리조건을 탐색하였다.

고온 고압용 상업적 규모의 중공사 투과증발 막시스템 개발

염충균,강경록,김주열,안효성,권건오 한국막학회 2013 멤브레인 Vol.23 No.4

본 연구에서는 고온에서 유기용매를 정제할 수 있는 고온, 고압에서 안정한 상업화 규모의 고효율 중공사 투과증발 막, 막모듈 개발, 상업 규모의 막분리 장치시스템 개발을 수행하였는데 구성 요소기술은 1) 고온 고압 하에서 사용할 수 있는 브레이드 강화 중공사 막제조, 2) 중공사 막모듈 제조, 3) 막 탈수, 정제장치 시스템 설계 및 제작기술등을 개발하였다. 개발 중 공사 투과증발막은 독일의 슐츠막 보다 막 안정성과 막 성능이 우수하였으며, 막면적 4.6 m 2의 고효율 상업적 규모의 중공사 막모듈을 개발하였고, 200 L/hr 이상의 처리용량의 Pilot 규모의 투과증발 막장치 시스템을 개발하였다. 기존 평막 혹은 중공사 막에서 모듈에서 볼 수 있었던 모듈내부에 공급액의 dead volume형성, 공급액의 채널링 현상들을 제거하기 위해서 본 개발 중 공사막과 막모듈의 특징은 고온, 고압의 유기용매를 중공사막 내부로 공급되어 흐르도록 설계되어 있어 막분리 효율이 우수하 며 특히 기존의 막제품의 대비 막모듈 가격이 저렴하고, 막성능 및 치수안정성이 우수하다. 또한 공급액의 열손실 적어 에너지 효율이 우수할 뿐 아니라 막모듈 내에 중공사막 사이의 간격이 일정하여 가해주는 진공이 균일하게 각 중공사막의 투과부 표 면에 전달될 수 있기 때문에 투과된 투과물을 막 표면으로부터 효과적으로 제거할 수 있으므로 투과속도 또한 우수하다. The main purpose of this study is to develop a commercial scale of pervaporative process equipped with hollow fiber membrane modules, being able to effectually purify organic solvent at high temperature well over its boiling point under high vapor pressure. Three constituent technologies have been developed; 1) to fabricate braid-reinforced hollow fiber membrane stable in high pressure and high temperature application, 2) to design and fabricate a commercial scale of hollow fiber membrane module, and 3) to design and fabricate a pilot scale of pervaporation equipment system. The developed hollow fiber membrane possesses a membrane performance superior to the membrane of Sulzer (Germany) which is the most-well known for pervaporation process, and the membrane module equips hollow fiber membranes of 4.6 m 2 and the pervaporation system can treat organic liquid at 200 L/h, which is based on the dehydration of 95 wt% isopropyl alcohol (IPA). Since the membrane module is designed to flow in and pass through the inside of individual hollow fiber membrane, not to involve both the formation of feed’s dead volume observed in flat-sheet membrane module and the channeling of feed occurring inside hollow fiber bundle which lower membrane performance seriously, it showed excellent separation efficiency. In particular, the module is inexpensive and has less heat loss into its surrounding, in compared with flat-sheet membrane module. In addition, permeant can be removed effectively from the outer surface of hollow fiber membrane because the applied vacuum is conveyed uniformly through space between fibers into respective fiber, even into one in the middle of the hollow fiber bundle in which the space between fibers is uniform in distance. Since the hollow fiber membrane pervaporation system is the first one ever developed in the world, our own unique proprietary technology can be secured, preoccupying technical superiority in export competitive challenges.

자동차 스마트 정션 박스 소형화를 위한 0.18㎛ BCDMOS 기반 스위치 회로 설계

이욱준(Ukjun Lee),권건오(Geono Kwon),임한상(Hansang Lim),신현철(Hyunchol Shin) 대한전자공학회 2015 전자공학회논문지 Vol.52 No.3

본 논문에서는 자동차 스마트 정션 박스(Smart Junction Box: SJB)의 소형화를 위하여 기존에 단위소자로 구성되어 있던 Enable 스위치 회로의 ASIC화를 위한 연구를 수행하였다. Enable 스위치 회로는 점화신호(Ignition: IG)를 입력으로 받아 SJB를 구성하는 Linear Regulator 및 다른 구성요소의 구동을 위한 Enable 신호 전달 역할을 한다. 0.18㎛ BCDMOS 공정을 사용하여 회로를 설계하였으며, 설계된 회로는 시뮬레이션을 통해 AEC-Q100과 ISO 7637-2에 기술된 조건을 만족함을 검증하였다. 설계된 Enable 스위치 회로의 레이아웃 크기는 1.67㎜ x 0.54㎜이며, 3㎜ x 3㎜ 크기의 HVSON8로 패키징 할 수 있다. ASIC화된 Enable 스위치 회로는 단위소자를 사용하여 Enable 스위치 회로를 구성하였을 때 보다 소요면적을 1/30 이상 축소할 수 있는 것으로 확인하였으며, 이를 통해 SJB 보드의 소형화에 기여할 것으로 기대할 수 있다. This paper presents a design of the enable switch circuit, which is consist of discrete device at smart junction box(SJB) board. The Enable switch circuit, which receives ignition signal (IG) for input, sends a drive signal to linear regulator and other elements. The circuit design is carried out in a BCDMOS 0.18㎛ technology, and the performances are verified through simulations according to AEC-Q100 and ISO 7637-2. Die area of the designed Enable switch circuit is 1.67㎜ x 0.54㎜ in layout, and it is shown that the die can be housed in 3㎜ x 3㎜ HVSON8 package. The designed enable switch circuit is expected to be widely adopted in various automotive SJB’s since it can significantly reduce the overall printed circuit board form factor.

개의 전침마취에 관한 연구 1.사지혈위의 효과에 대한 검토

김덕환,조성환,조해운,신해청,이성호,이성옥,김인봉,권건오,남치주 한국임상수의학회 1998 한국임상수의학회지 Vol.15 No.2

To elucidate the effect of the acupoints of the limbo for canine electroacupunhur anesthesial total 140 heads of dogs were used. The animals were divided into 3 experimental groups(Gong-sun, San-yin-jiao and Qiang-feng and contro1 group(non-acupoint). The induction time, clinical findings and the results of operation using laparatomy were investigated under the electroacupunture anesthesia and compared with those of control. The induction time of electroacupunture anesthesia was very rapids about 1 minute in experimental groups, while it is unable to succeed in anesthesia of control group. As far clinical Bindings during electroacupunture anesthesia, the experimental animals had vivid consciousness and stability without tumult and barking. The success rate of operation was high with decreasing order of Gong-sun group(50/50, 100%) > San-yin·jiao group(26/30, 86.7%) 1 Qiag-feng group(18/ 30, 60%) in experimental groups. Considering above findings collectively, the combination of Gong-sun and San-yang-luo is thought to be best method among the acupoints of the limbs for canine electroacupunture anesthesia.

개의 전침마취에 관한 연구 1. 사지 혈위의 효과에 대한 검토

김덕환,申海淸,趙海雲*,조성환,이성호,이성옥,권건오,김인봉 대한수의학회 1996 대한수의학회 학술대회발표집 Vol.1996 No.-

고양이의 전침마취에 관한 연구

김인봉,김무강,조성환,김덕환,유명조,이성호,이성옥,권건오,김명철 한국임상수의학회 1999 한국임상수의학회지 Vol.16 No.2

To establish feline electroacupuncture anesthesia, 5 cats (mixed, 1 month old, 0.4~0.5 kg, female) were examined in the present study. The acupoints used for feline electroacupuncture anesthesia were Tian-ping and Bai-hui. After perpendicular insertion of needle to Tian-ping and Bai-hui, respectively, positive electrode was connected at Tian-ping and negative electrode was connected at Bai-hui, respectively, Electric condition was 3 V and 30 Hz. To examine the effect of electroacupuncture anesthesia, laparotomy (5 heads)was applied. The pain of the body surface and the extremities excluding the tail was not found, and the induction time of electroacupuncture anesthesia was approximately 1 minute. As for the reactions with electroacupuncture anesthesia, the head part was directed to backward, blepharoreaction was mild and the consciousness was vivid. The class of anesthesia effect was excellent in 4 heads and was poor in 1 head. The pain was not observed and bleeding was comparatively small volume during surgery in excellent group.