• 대한수의학회지
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• 제39권3호
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• pp.665-671
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• 1999

The aim of this study was to establish selective hepatic artery catheterization technique through percutaneous femoral artery puncture and to offer digital subtraction angiography (DSA) of hepatic artery in beagle dogs. Percutaneous femoral artery puncture was performed with Sheldinger's method. Microferret$^{TM}$-18 Infusion catheter(William, Cook, Europe) was introduced into abdominal aorta. Then, under fluoroscopy, iopamidol 370(Bracco, Italy) was injected to identify celiac artery and 'J' shaped guide wire was introduced into celiac artery. Catheter could be introduced into celiac artery through guide wire. In this manner, catheter was located at the insertion of hepatic artery and DSA was performed. In DSA of beagle dogs, hepatic artery which was divided into lateral branch, right-medial branch, right-lateral branch of hepatic artery, cystic artery and gastroduodenal artery was opacified without superimposition of any other body structure and so was the parenchyme of liver afterward. In autopsy angiographic finding of resected liver, cystic artery, caudate branch, lateral branch, right-medial branch, right-lateral branch and quadrate branch of hepatic artery were identified. It was concluded that selective hepatic artery catheterization technique was a minimally invasive method that facillitated the approach of hepatic artery and DSA was an excellent tool to visualize the vessle of liver in dogs.

• 한국기록관리학회지
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• 제17권4호
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• pp.155-175
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• 2017

이 연구에서는 국가기록원과 권역별 기록관의 현단계를 점검하고 발전 방향을 제시하기 위해 국가기록원에 대한 5개의 연구문제와 권역별 기록관에 대한 3개의 연구문제를 중심으로 논의를 진행하였다. 국가기록원에 대해서는 1) 국가기록원은 대한민국의 기록관리자인가? 2) 국가기록원은 지방기록물관리기관 설치를 지원하고 있는가? 3) 국가기록원은 모든 공공기관의 기록물관리를 지도 감독하고 있는가? 4) 국가기록원의 존재 이유는 무엇이며, 비전은 적절한가? 5) 국가기록원은 단순한 행정부처인가? 라는 연구문제를 점검하고, 권역별 기록관에 대해서는 1) 권역별 기록관은 영구기록물관리기관인가? 2) <서울기록관>, <부산기록관>, <대전기록관>이라는 명칭은 적절한가? 3) 권역별 기록관은 단순 문서고인가? 라는 연구문제를 점검함으로써 국가기록원과 권역별 기록관의 역할 재정립을 위한 방안을 제안하였다.

• Archives of Pharmacal Research
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• 제24권3호
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• pp.229-233
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• 2001

This Paper deals with the development of a technology for making a hydrophilic gel of Polyethylene oxide reception in which radiating ability is employed to cause cross-linking of Polymers in a water solution. The gel of polyethylene oxide was shown to be nontoxic contain 5-50% of polymer and be useful in composite medicinal forms along with biologically active substances including Bac. subtilis proteases. Proteases immobilized in the gel possess high thermal stability and proteolytic activity and are readily applied in medicine. The effect of immobilized proteolytic and glucolytic enzymes of Bac. subtillis (Immozimase) on the warm ischemia-reperfusion (I/R) which can cause hepatic and jejunum injury was also studied. These enzymes were immobilized on water-soluble polymer polyethylene glycol by means of an electron beam. The number of degraanulated mast cells as well as serum ALT after I/R in the group with Immozimase was decreased to almost half as compared with the control group. Pretreatment with Immozimase resulted in significant reduction of hepatic and gut neutrophil accumulation as compared with control animals. It was concluded that Immozimase has a protective effect for hepatic and gut ischemia/reperfusion, and this effect seems to be associated with prevention of leukocyte accumulation .

• 대한수의사회지
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• 제13권3호
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• pp.161-166
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• 1977

A survey on prevalence and the efficiency of the field chemotherapeutical administration on fascioliasis-param-phistomiasis about 524 dairy cattles of 20 heards was carried out in the areas of the northern parts of the Gyeonggi-Do by means of fecal examin

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.162-166
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• 2011

In railway, Tie supports rail and plays a role that distribute train load to the ballast. Also, Tie and ballast resist against external force and fix the track position. But, weakening resistance of ballast and tie cause vertical displacement of tie and track irregularity. For reinforcement of track stiffness and reduction of track irregularity, KORAIL has developed Multi Branch type tie(GLORY Tie) that reinforced resistance than general PCT and installed in order to test in the field. This study measured and analyzed lateral resistance of ballast, wheel load of rail, bending strain of rail foot, vertical displacement and vibration acceleration of tie in order to evaluate performance of Multi Branch type tie in the field. According to the results of test, Multi Branch tie is excellent than general tie about lateral resistance of ballast and vertical displacement of tie. And, gap of measurement value between Multi Branch type tie and general tie about wheel load of rail, bending strain of rail foot were very small.

• 대한화학회지
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• 제59권3호
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• pp.233-237
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• 2015

The effect of ultrasonication on PTFE and its composites with zeolite and fluoroplast F-4NTD-2 was studied. Ultrasonication was found to cause changes in the supramolecular structure, and consequently, the tensile strength, relative elongation, and mass wear rate. Changes in the topology of the materials following ultrasonication were investigated by scanning electron microscopy. The optimum enhancement of the desired properties was found in the PTFE composite containing 2% activated zeolite.

• 천문학회지
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• 제38권2호
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• pp.23-31
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• 2005

CN and CH band strengths for fourteen bright giants in the globular cluster M71 have been measured from archival spectra obtained with the Multiple Mirror Telescope. Adding the collected. data from the literature we confirm a bimodality of CN distribution on the red giant branch and the honzontal branch, and CN-CH anti-correlations on the lower giant branch and horizontal branch. However a CN-CH anti-correlation on the upper red giant branch is not quite clear as those of other branches. The small number If statistics could not be excluded as a possible cause. To confirm this, a greater number of sample stars are needed. We also confirm that the ratio of CN-strong to CN-weak stars is quite different from that in 47 Tuc, although the anti-correlation between CN and CH bands, the bimodality of the CN distribution, and the spatial distribution of CN stars in M71 are found to be similar to those III 47 Tuc.

• Journal of electromagnetic engineering and science
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• 제8권2호
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• pp.47-51
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• 2008

In this paper, we present a cost effective parallel-branch spiral inductor with the enhanced quality factor and the resonance frequency. This structure is designed to improve the quality factor, but different from other fully stacked spiral inductors. The parallel-branch effect is increased by overlapping the first metal below the second metal with same direction. Measurement result shows an increased quality factor of 12 % improvement. Also, we show an octagonal parallel-branch inductor which reduces the parasitic capacitances for higher frequency applications.

• 산업경영시스템학회지
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• 제33권4호
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• pp.1-9
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• 2010

In this paper, we consider a two-machine re-entrant permutation flowshop scheduling problem with the objective of minimizing total flowtime, and suggest branch and bound algorithms for the scheduling problem. In this scheduling problem, each job must be processed twice on each machine, that is, each job should be processed on the two machines in the order of machine 1, machine 2 and then machine 1 and machine 2. In this research, based on the results of existing researches for re-entrant permutation flowshop scheduling problems, various dominance properties, lower bound and heuristic algorithm are suggested for the problem, and those are used to develop branch and bound algorithms. In the computational experiments for evaluation of the performance of the algorithms, the suggested branch and bound algorithms are tested on randomly generated test problems and results are reported.

• 한국동물위생학회지
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• 제31권4호
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• pp.465-469
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• 2008

Unusual yellowish-green intramuscular granulomatous lesions were found in a carcass of Hanwoo(slaughtered, 30 month old). Those were 1-3 mm in diameter, oval shaped, and paralleled with muscle fibers. Histologically, severe inflammation, eosinophilic granulomas and necrosis were observed in the muscle tissue. We also observed sarcocysts in the muscle cells. In a polymerase chain reaction, we identified 900bp length, sarcocystis specific fragment. It would be diagnosed as sarcocystosis in Hanwoo.