항공우주산업의 발전전략

안영수,An, Yeong-Su 한국항공우주산업진흥협회 2003 航空宇宙 Vol.81 No.-

지난 5월 22일 산업자원부(미래전략산업분과위원회)가 주최하고 전자부품연구원이 ''''미래전략산업 발전전략 세미나''''에서는 21세기의 급변하는 세계 경제상황과 치열한 경쟁속에서 국가경쟁력 강화를 위한 차세대 성장동력을 발굴, 선정하여 미래 전략산업 분야의 발전비전이 제시되었다. 다음은 산업연구원 안영수 연구위원이 항공우주분야에 차세대 성장동력으로 선정된 다목적헬기, 차세대 전투기, 소형 여객기, 무인항공기, 인공위성의 5개 분야를 중심으로 발표한 항공우주산업 발전전략을 정리한다.

A study on the impact of soft location factors in the relocation of service and manufacturing firms

안영수,강영경,이승일 서울시립대학교 도시과학연구원 2014 도시과학국제저널 Vol.18 No.3

This paper empirically studied relocation factors for manufacturing and service firms inthe Seoul MetropolitanArea.The purpose of this study is to identify the influence not onlyof traditional firm location factors, but also of quality of life factors. A firm’s locationdecision is an assertive action (behaviour) to maximize profit that may have a largeripple effect on the regional economy and society. This study used a binary logit model toanalyse location choice factors during firm relocations.As of December 2011, the numberof firms registered with the Korea Chamber of Commerce and Industry was 117,157. Of these firms, 36,598 were selected. The firms’ locations could be tracked becausetheir names and owners did not change from December 2006 to December 2012. Of theselected firms, 8328 (22.8%) relocated during this period. It can be considered that 4.6%of all firms relocate in a year.A geographic information system database was built usinglocation addresses of the 8328 firms. This study exhibited a trend that manufacturingfirms moved from cities to suburbs, where transport and industry conditions were morefavourable. By contrast, firms in higher-order industries with high-added value movedto city centres, where living conditions were more favourable. This trend suggests thatquality of life factors have become more important in firm location decisions. This studyis expected to be used to understand changes in firm locations and relocations, and tohelp make industrial policies for drawing firms.

당뇨백서에서 소뇌연수조내 췌장도 세포 동종이식

안영수,이경은,이현철,허갑범,김경래 대한당뇨병학회 1989 Diabetes and Metabolism Journal Vol.13 No.2

Development and application of intensified envelope analysis for the condition monitoring system using acoustic emission signal

안영수,구동식,이종명,하정민,김용휘,안병현,노정필,최병근 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.11

The application of the high-frequency acoustic-emission (AE) technique in the condition monitoring of rotating machinery has beenincreasing of late. It has a major drawback, though, the attenuation of the signal, and as such, the AE sensor has to be close to its source. Two signal-processing methods, envelope analysis and wavelet transform, were found to be useful for detecting faults in the rolling elementbearing and gearboxes. These methods have a disadvantage, though: their application is focused only on a component of the assembledmachine. For example, envelope analysis is a powerful method for detecting faults in the bearing system, but it is not proper for usein the gear system. Thus, these methods could not be used to detect combined faults in the common assembled machines. Therefore, wepropose a signal-processing method consisting of envelope analysis and DWT (discrete wavelet transform). In addition, a novel motherfunction optimized for the AE signal for DWT was extracted through a fatigue crack growth test, and is also proposed herein. Then theproposed method, called intensified envelope analysis (IEA), was used to detect the faults in the rolling element bearing and rotatingshaft. According to the results, IEA can be a better signal processing method for the condition monitoring system using AE technique.

근해통발(꽃게)어업의 어로시스템 개선 방안

안영수,유금범,장충식,조윤형,김보연,정금철 한국수산해양기술학회(구 한국어업기술학회) 2020 한국수산해양기술학회 학술발표대회 Vol.2020 No.07

산조인의 중추신경 및 심혈관계에 대한 약리작용

안영수,김경환,조태순,김원준,홍사석,Ahn, Y.S.,Kim, K.H.,Cho, T.S.,Kim, W.J.,Hong, S.S. 대한약리학회 1982 대한약리학잡지 Vol.18 No.1

Zizyphus seed(Zizyphus vulgaris Lamark var. Spinosus Bunge) has long been used as hypnotics and sedatives in oriental medicine, and it is reported that the Zizyphus seed elicited a variety of pharmacologic actions besides CNS depression. Present study was undertaken to investigate the effects of Zizyphus seed on the central nervous system and on the blood pressure. The effect of Zizyphus seed on the central nervous system was measured by the influence of thiopental sleeping time and by inhibition of chemical convulsion (strychnine and pentylenetetrazol induced). Blood pressure changes by Zizyphus extract and its mode of action were investigated. The ground Zizyphus seed was extracted with hexane and methanol, consecutively and the supernatants were discarded. The precipitate was re-extracted with distilled water and the supernatant was evaporated to a dark-brownish sticky liquid, which was used as Zizyphus seed extract in this study after dissolving in saline prior to experiment. The results are as follows. 1) Zizyphus seed extract caused marked prolongation of the thiopental sleeping time in mice. 2) The chemical convulsion by strychnine and pentylenetetrazol, and the mortality by them in chicks were not affected by pretreatment of Zizyphus seed extract. 3) Zizyphus seed extract produced transient fall of blood pressure in the cat, and this hypotentive effect was blocked partially by atropine but not affected by bilateral vagotomy and/or hexamethonium, nor propranolol and, chlorpheniramine and/or cimetidine. With the above results, it may be suggested that the water extract of Zizyphus seeds contains components producing CNS depression and hypotension. Furthermore it is felt that the cholinergic effect, but not the adrenergic or histaminergic, is partly responsible for the hypotensive effect of Zizyphus seed extract.

선단축소를 위한 기선권현망 축소형 소형어구의 전개성능

안영수,백영수,진송한,장충식,강명희,차봉진,조윤형,차주형,김보연 한국수산해양기술학회 2019 수산해양기술연구 Vol.55 No.1

This study was conducted in order to improve opening efficiency of the miniaturized small-scale net for anchovy boat seine gear to reduce the fleet size. Field experiment was performed to observe geometry of nets by catcher boats. When the distance between the two ships was 150, 300 and 450 m and the speed of towing nets was 0.6, 0.9, and 1.2 kt, the vertical opening and actual opening of each part of the miniaturized small-scale net was as follows: the front part of the wing net, 6.8-9.5 m, 45-63%; the middle part of the wing net, 16.1-30.7 m, 34-65%; the entrance of the inside wing net, 21.6-41.2 m, 44-84%; the square and bosom, 17.4-34.0 m, 38-75%; the entrance of the body net, 16.5-29.4 m, 36-64%; the entrance of the bag net, 14.5-21.9 m, 70-106%; the flapper, 6.7-7.7 m, 81-83%, and the end of the bag net, 8.6-10.9 m, 64-81%. The tension of towing nets was measured to be 2,734-6,812 kg approximately, which indicates that the fleet can tow nets with 350 hp, the standard engine horse power. The fishing operation time was shortened comparing to existent net with the large-scale buoy attachment operation. It was also possible to operate the ship without fish detecting boat.

BSO 유도 루타치온 저감 흰쥐에서 1, 2, 4-trichlorobenzene의 급성독성에 관한 연구

안영수,권명희,이정섭,김정우,김대선,류홍일,강인구 환경독성보건학회 1996 환경독성보건학회지 Vol.11 No.1

1, 2, 4-Trichlorobenzene (1, 2, 4-TCB) is used as a dye carrier, as an intermediate in the synthesis of herbicides, as a flame retardant, and for other purpose. After a single oral administration of 1, 2, 4-TCB (200 mg/kg, 400 mg/kg) in rats, toxic effects were studied by means of serum biochemical and heatological analysis, and liver calcium concentration. Administration of 1, 2, 4-TCB resulted in dose-dependent liver and kidney damage as estimated by increased serum alanine aminotransferase (ALT) activities, liver calcium concentration and blood urea nitrogen (BUN). Pretreatment with DL-buthionine sulfoximine (BSO, 2 mmol/kg, i.p. ) considerably decreased liver glutathione concentration, which was accompanied by markedly elevated serum ALT activites. It is well-known that toxicity of halogenated benzene such as bromobenzene, 1, 4-dichlorobenzene is increased by pretreatment of henobarbital (PB), and protected by pretreatment of cytochrome P450 inhibitor including metyrapone (MP). However, there was no obvious alterations in toxicity of 1, 2, 4-TCB by pretreatment of phenobarbital or metyrapone. In comparison with control group, treatment groups exhibited significant changes in some parameters of hematological analysis but all hematological values remined within normal ranges.

AIIoxan 유도 당뇨병상태에서 과산화지질생성에 미치는 Brazilin의 효과

안영수,길이룡,소동수,창동신,김진형,문창규,박광식 환경독성보건학회 1996 환경독성보건학회지 Vol.11 No.3

Brazilin was tested for its ability to inhibit alloxan induced lipidperoxidation. Lipid peroxide contents in liver, kidney and serum were measured by the TBA method. ICR mice receiving alloxan at a dose of 43mg/kg via the tail vein after a 24 hrs starvation showed significantly increased lipid peroxide contents as compared to untreated control. Lipid peroxide contents in liver, kidney and serum of alloxan-induced diabetic mice were dosedependently decreased by the treatment of brazilin at a dose of 10mg/kg, 50mg/kg, 100 mg/kg for 5 days.

B.6 : 품질시스템 : B.5.1 ; 6 시그마를 기반으로한 TRIZ 활용방안

안영수,황인극 한국품질경영학회 2011 한국품질경영학회 학술대회 Vol.2011 No.1

이 논문에서는 현재 제기되고 있는 6 시그마와트리즈의 장점 및 문제점을 알아보고 각 방법론의 연계를 통해 보다 효율적인 새로운 방법론을 제기하고자 한다.