엔로플록사신 액제의 닭유래 병원세균에 대한 시험관내 항균효과 시험

윤효인,박병권,조준형,정상희,박경환,장범수,김종춘,황윤환,임종환,이내경,박승춘 충남대학교 수의과대학 동물의과학연구소 2000 動物醫科學硏究誌 Vol.8 No.-

In this study the antimicrobial spectrum and sensitivity of a liquid formulation of enrofloxacin against the major six pathogenic bacteria isolated from the diseased poultry in Korea were evaluated in comparison with ciprfloxacin (CFX), gentamicin (GM) and penicillin (PC). A liquid form of enrofloxacin, a test material and ciprofloxacin showed at least 83% antibacterial activity against all of six test pathogenic microorganisms at the fixed concentration of 10 ㎍/㎖. Gentamicin and penicillin revealed much lower antibacterial activity at the same condition. We evaluated the liquid form of enrofloxacin as having widespread antibacterial spectrum against poultry infections. The liquid form of enrofloxacin showed potent antibacterial activity, with the MIC range being 0.12∼2 ㎍/㎖ against Gram positives, 0.06∼2 ㎍/㎖ against Gram negatives and 0.5∼2 ㎍/㎖ against Mycoplasma spp. These values were equivalent to or somewhat higher than those of ciprofloxacin, but much lower than those of gentamicn and penicillin. This new liquid form of enrofloxacin would find its way in application of mixing with drinking water for the prevention and treatment of diverse infections in chickens.

엔로플록사신 액제의 닭 호흡기 및 소화기 감염증에 대한 예방 및 치료효과

윤효인,박병권,조준형,정상희,박경환,장범수,김종춘,황윤환,임종환,이내경,박승춘 충남대학교 수의과대학 동물의과학연구소 2000 動物醫科學硏究誌 Vol.8 No.-

We evaluated the efficacy of the liquid form of enrofloxacin against poultry respiratory and digestive infections, the major problems in the poultry industry, from diverse diagnosis viewpoints. Results obtained through this study were as follows: 1. The liquid form of enrofloxacin showed good acceptability to poultry owing to no abhorrence to the drug by chickens, which indicated its suitability for mixing in drinking water. 2. The application of the enrofloxacin formulation improved the productivity of the chicken farm to a great extent by lowering the death toll of chicken raised in the farm. 3. The use of the drug shortened the days to the market, and increased the body weight at the time of marketing. 4. Preventive and therapeutic effects of the liquid enrofloxacin were observed higher than ampicillin, a major antibiotic used in poultry farming. From above results, the liquid form of enrofloxacin would find its use for the prevention and treatment of digestive and respiratory infections, let alone the growth promotion and feed efficiency, especially in the chicken farming practice.

입원치료를 요하는 소아의 급성복증

배택환,김준식,유인술,조준필,이철주,민영기 大韓應急醫學會 1996 대한응급의학회지 Vol.7 No.1

The acute abdomen defined as an acute abdominal condition which needs immediate decision for treatment is one of the most common cause for emergency care. One thound six hundreds nine patients were visited to pediatric emergency center due to acute abdomen. To aid in early diagnosis and proper treatment, a clinical review was made on 278 cases of acute abdomen under 15 yrs old which admitted to Pediatrics and General surgery via emergency center from June of 1994 to May of 1995. The results as follows: It was 17.3% of total visiting to pediatric emergency center due to gastrointestinal sysmptoms. The sex ratio(Male: Female) was 2.35:1. Acute gastroenteristis was the most common acute abdominal condition(54%) and followed by acute appendicitis(17.9%), and intussusception(13.9%). The most common chief commplaint was vomiting(58%) and followed by abdominal pain(39.4%), diarrhea(35.8%), and fever(42.1%). One hundred fifty-five patients were visited to pediatric emergency center via local clinic and thirty patients via OPDs. The operations were done in 75 patients. Among them, immediate operation were done in 60 patients and delayed operations were done in 15 patients, but there is no difference in complication.

TLD의 제작과 전자선의 흡수선량 분포 측정

박명환,김성환,이준일 대구보건대학 1999 대구보건대학 論文集 Vol.19 No.-

In this study, the highly sensitive CaSO₄:Tm-PTFE TLDs has been fabricated for the purpose of measurement of high energy electron. CaSO₄:Tm phosphor powder was mixed with polytetrafluoroethylene(PTFE) powder and moulded in a disk type(diameter 8.5㎜, thickness 90㎎/㎠) by cold pressing. The batch uniformities were average deviation 3.1%. The TLDs were determined to be R_(100)=14.5㎜, R_(50)=24.1㎜ and R_(p)=31.8㎜, respectively. The beam flatness were 4.5% as the variation of dose relative to the central axis over the central 80% of the field size at a maximum dose depth in a plane perpendicular to the central axis.

Fuzzy 제어기를 이용한 외란부가 Servo System 제어

정형환,김태우,이오걸,이준탁 東亞大學校 1991 東亞論叢 Vol.28 No.1

A servo system requires faster and more accurate dynamic responses. Generally a PD control is mai-nly used to obtain the precision, and in the other hand a fuzzy control to improve the transient respo-nse and to cope with the nonlinearity of systems. Recently hybrid control, which is attempted to combine the advantages of PD control and a Fuzzy control was proposed, but this technique requires complicate design procedures. Therefore in this paper, a fuzzy controller with a series of membership functions and various sampling periods and rules, was designed on the basis of Lyapunov stability theory and auto tuning methods of imput scale factors using the proposed windowing techniques. And also it was showed to have the excellent adaptive performacnes against internal-external disturbances and the usefulness of this controller from the results of simulations.

퍼지추론기법을 이용한 2-자유도 비선형 모형 헬리콥터의 자세 제어

朴斗煥,李俊柝,河泓坤 東義大學校産業技術開發硏究所 1998 産業技術硏究誌 Vol.12 No.-

The helicopter system is non-linear and complex. Futhermore, because of absence of an accurate mathematical model, it is difficult accurately to control its attitude. Therefore, we propose a fuzzy control technique to control efficiently its elevation angle and azimuth one. This controller is on the basis of expert's knowledges and his experiences. The simulation results using MATLAB are introduced.

VB를 이용한 동영상 디스플레이어의 구현

박준호,백혜숙,오주환 경운대학교 산업기술연구소 2001 産業技術硏究論文誌 Vol.3 No.2(C)

전자 디지털 컴퓨터가 발명된 지 40년 여년이 지났고 현재의 컴퓨터는 모든 기능을 그래픽 환경에서 구현하고 있으며, 여러 가지 부가적인 기능을 가지고 있다. 초기의 수치계산에 치우쳤던 컴퓨터의 기능은 지금은 많은 멀티미디어 기능을 내장하고 있다. 수치계산에서 문서화 작업, 자동제어, 음악, 그림에 이르기까지 앞으로의 용도를 예측하기 어려울 정도다. 처음에는 영어 철자나 기호 등을 이용해 점자같은 처리를 했던 그래픽이 지금은 모든 것을 표현하는 완벽한 예술의 도구로 자리잡았다. 기존의 이미지 뷰어에서는 정영상과 동영상에 별도의 틀이 있었지만, 통합 환경은 없었다. 본 논문에서는 다양한 포맷의 디스플레이, 확대, 축소, 프린트 기능과 동영상을 디스플레이할 수 있는 통합 환경을 구현하였다.

공급사슬관리(SCM) 기반 구축에 관한 소고

전준수,원동환,최창은 서강대학교 경영연구소 2004 서강경영논총 Vol.15 No.2

가소제 종류에 따른 아크릴레이트 아이오노머의 기계적 성질에 대한 영향

고광환,김준섭 조선대학교 생산기술연구소 2007 生産技術硏究 Vol.29 No.2

The present study aimed to investigate the effects of additive (DOP, glycerol and 4-DA) on the mechanical properties of acrylate based ionomers neutraized with Na^(+). In experiments, the dynamic mechanical properties of PEA-ionomers containing polar and non-polar additives were compared with those of the PMA and PMMA ionomer. In the case of the PEA-ionomers containing non-polar 4-DA, residing in non-ionic regions of the ionomer, the matrix and cluster Tgs of the ionomer decreased. It was observed that the matrix Tgs of PMA ionomer decreased by the addition of all the additives. However, the two Tgs of PMMA ionomer increased with the addition of all the additives. In PMMA ionomers the partition of the additives took place into both the multiplets and the backbone regions, resulting in an increase in clustering.

糞便檢査에 있어서 세로판 厚層塗抹法과 簡易食鹽水浮游法의 比較檢討

李駿商,張基浩,朱炅煥,金洙鎭,林漢鍾 고려대학교 의과대학 1979 고려대 의대 잡지 Vol.16 No.1

Experiments had been made to evaluate more efficient method in stool examination for various helminth ova. Authors examined 2,016 nationwidely collected stool specimens by the two methods, cellophane thick smear method and brine floatation method. The results were as foliows; 1. Of 2,019 specimens examined by cellophane thick smear method, the positive rates of following helminth ova were; Ascaris lumbricoides (fertilized) 27.3% Ascaris lumbricoides (unfertilized) 13.6%, Trichuris trichiura 39.0%, Hookworm 0.1%, Enterobius vermicularis 0.05% Hymenolepis nana 0.04%, Taenla spp. 1.3% Clonorchis sinensis 1.1% and Metagonimus yokogawai 5.7%. And, A. lumbricoides (fertilized) 27.0%, A. lumbricoides (unfertilized) 3.8%, T. trichiura 38.1%, Hookworm 2.0%, Trichostrongylus orlentalis 0.6%, E. vermicularis 0.2%, H. nana 0.8%, and M. yokogawai 0.05% by brine floatation method. 2. The causes of inferior positive rates in some helminth ova by cellophane thick smear method were shortly discussed and suggest some opinions in improvement of detection ability. 3. The positive rates of following helminth ova were superior in cellophane thick smear method to those of brine floatation method: A. lumbricoides(fertilized), Taenia spp., C. sinensis and M. yokogawai. And, the positive rates of following helminth ova were superior in brine floatation method: Hookworm T. orientalis, H. nana and E. vermicularis. 4. Cellophane thick smear method has been known to be one of the most effective methods in mass stool examination. But, this method is not so effective in detection of certain species of helminth ova. Therefore, employment of brine floatation method added to cellophane thick smear method is desirable for the better result of mass stool examination.