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        • 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.

        • Haloperidol 이 심혈관계에 미치는 영향

          안영수,Ahn,,Young-Soo 대한약리학회 1975 대한약리학잡지 Vol.11 No.2

          Haloperidol, a butyrophenone, was synthetized by Janssen and introduced for the treatment of psychosis. Although structurally different from the phenothiazines, the butyrophenones share many of their pharmacological properties, such as inhibition of conditioned avoidance response, blocking effect of amphetamine reaction, producing catalepsy, antishock effect and protection against the lethal effects of catecholalmines. Chlorpromazine can lower the arterial blood pressure through its adrenergic blocking activity, its direct effect in relaxing vascular smooth muscle, its direct effect in depressing the myocardium and its action in a complex manner on the central nervous system. In the case of haloperidol, however, was not clarified the mechanism of lowering the blood pressure. The present paper describes the effects of haloperidol on cardiovascular system to investigate the mechanisms of its actions on the arterial blood pressure. The results are followings; 1. In anesthetized cats, intravenous administration of haloperidol and chlorpromazine in the dose of 0.1mg/kg produced a slight decrease in the blood pressure, which followed by complete recovery within $30{\sim}60$ minutes. In the dose of 3mg/kg, however, both produced an abrupt and marked decrease of the blood pressure, which followed by delayed recovery. 2. Haloperidol in the dose ranges of 0.1mg to 3.0mg/kg tended to produce the heart rate slowing in the cats, while chlorpromazine has no effect on the rate. 3. Following administration of haloperidol or chlorpromazine, epinephrine reversal in the arterial blood pressure was observed in the cat, however the responses of norepinephrine and acetylcholine were little affected. 4. In the isolated rabbit atrium the contractility was depressed by haloperidol in the doses over 0.5mg per 100ml, but the rate was not affected. In contrast, the epinephrine-induced contractility was not depressed after haloperidol treatment. However, the increased rate of atrium by epinephrine was partially blocked after haloperidol. 5. In the isolated rabbit aortic strip, epinephrine-induced contraction was blocked by haloperidol. With the above results, it may be concluded that the hypotensive effect of haloperidol was largely due to ${\alpha}$-adrenergic blocking properties and the direct effect in depressing the myocardium as well as its action on central nervous system.

        • SCOPUSKCI등재
        • KCI등재

          Modelling industrial firm relocation with impacts of spatial dependence

          안영수,Li,Wan 서울시립대학교 도시과학연구원 2018 도시과학국제저널 Vol.22 No.1

          The location choice of industrial firms has been studied extensively. However the relocation choice of industrial firm remains under-researched. In this study, we develop a multinomial logit model for firm relocation choices that considers both origin and destination attributes. The proposed model is empirically estimated with firm registration data for the Seoul Metropolitan Area. The estimation results show that the network distance for relocation is an important factor for manufacturing firms; reduced land costs is likely to be a significant economic factor in relocation choice of manufacturing firms. In terms of the impacts of spatial dependence, we clarify two types of spatial dependence in literature, i.e. the neighbourhood effects from contiguous locations and the extended spatial spillovers in agglomeration economy. Our test shows that both the neighbourhood and agglomeration effects are significant for high-tech industry, but not for heavy industry. Sensitive tests are carried out to determine the optimum catchment radius for measuring the agglomeration effects for each manufacturing firm types. We also investigate the possible relocation choice variance among manufacturing firms of different employment size.

        • 교통약자의 역세권 이동범위 실증 연구

          안영수,고주연,이승일 도시정책학회 2018 도시정책학회 학술대회 Vol.2018 No.11

          In the daily life of the transportation vulnerable, the accessibility to the facilities such as the hospital or welfare to the destination is possible using passenger cars or semi-public transportation like a disabled taxi, etc. However, for leisure purposes, such as shopping and meetings, transportation is mainly based on public transportation, in particular, while the movement inside the station is relatively easy on the case of urban railways, after moving out of station, moving conditions are very poor in station area. Therefore, in order to improve the daily life for transportation vulnerable, in addition to the facilities inside the public transportation, the conditions of transportation in the station area are also important, and a model that can be verified and evaluated spatially is needed. This study is to empirical analysis the movement range in the urban railway station area to promote the daily life for the transportation vulnerable. A distance, area, and facilities that can be moved for a certain period of time are calculated to distinguish vulnerable areas based on the GIS walking network from the station to the subway station of the city railway which is the representative public transportation of Seoul city. We develop a model that can quantitatively analyze the effect of improvement of pedestrian facilities for transportation vulnerable.

        • KCI등재

          EAF dust가 함유된 붕규산염계 결정화 유리의 미세구조 분석

          안영수,강승구,김유택,이기강,김정환,Ahn,,Y.S.,Kang,,S.G.,Kim,,Y.T.,Lee,,G.K.,Kim,,J.H. 한국결정성장학회 2006 韓國結晶成長學會誌 Vol.16 No.2

          붕규산염계 유리 프리트에 중금속이 다량 함유된 전기로 EAF dust(전기로 제강분진, 이하 더스트)를 $10{\sim}80wt%$ 범위로 첨가한 후 용융하여 유리 시편을 얻었다. 제조된 유리의 DTA분석 결과로부터 유리전이온도, $T_g$가 $550^{\circ}C$ 부근임을 확인하였고 이로부터 결정화에 필요한 열처리 조건을 $700^{\circ}C$/10 hr으로 정하였다. 더스트 첨가량이 70wt% 이상인 유리시편은 XRD 분석 결과 spinel 결정 피크만이 나타났으며, 결정화 시편의 경우, 더스트 첨가량이 40wt% 이상부터 spinel 결정이, 80wt% 부터는 spinet과 willemite 피크가 함께 검출되었다. XRD 분석으로는 결정상이 검출되지 않았던 조성의 유리시편에서도 aspect ratio=$0.7{\sim}1.0$인 수십 nm 크기의 결정상 존재가 SEM으로 확인되었고 결정화 시편에서도 더스트 함량이 l0wt%부터 결정상이 관찰되었다. 결정화 시편에서 관찰된 결정상은 그 형태와 분포가 첨가량에 따라 다양하고 비균일 하였으나 더스트 첨가량이 70wt%인 시편에서는 aspect ratio가 1에 가까운 6면체 형상을 나타내었다. Glassy specimen was obtained by melting and quenching a borosilicate glass frit miked with $10{\sim}80wt%$ EAF dust. The glass transition temperature, $T_g$ of glassy specimen was measured around $550^{\circ}C$ from the DTA curve and the eat treatment condition to crystallize a glassy specimen was selected as $700^{\circ}C$/1 hr. The spinel crystal peaks were found in XRD analysis for the glass containing dust > 70 wt%. For the glass-ceramics, however, the spinel peaks in a specimen containing dust > 40 wt%, and the spinel and willemite peaks in dust > 80 wt%. The crystals of several tens of nanometer with aspect ratio of $0.7{\sim}1.0$ were observed at a glassy specimen containing dust > 40 wt% by SEM which was not found by XRD analysis. For the glass-ceramics, the crystals were found in a specimen containing dust of even 10 wt% by SEM. The feature and distribution of crystals observed through the specimen for a glass-ceramics were diverse and not uniform. The crystals found in the glass-ceramics containing 70 wt% dust were hexahedral with an aspect ratio of around unity.

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