한국형 공간정보시스템 도입의 간접적 편익에 관한 분석

이영성,김갑성,정해영,김진,Lee, Young-Sung,Kim, Kab-Sung,Jung, Hayoung,Kim, Jin 한국지역학회 2017 지역연구 Vol.33 No.2

정보화사업의 편익을 평가할 때 학계에서는 많은 경우 현금흐름이 분명한 직접적 편익만을 고려했다. 본 연구는 한국형 공간정보시스템 도입을 사례로 하여 학계가 그동안 소홀히 한 간접적 편익을 추정한다. 한국형 공간정보시스템은 외국산 소프트웨어에 의존하던 기존의 시스템을 국산 소프트웨어로 대체하고, 클라우드 시스템을 도입하는 것이다. 이에 따른 간접적 편익으로는 선택가치, 국가 브랜드 강화, 대민 서비스 품질 향상, 국내 경쟁력 향상 등을 들 수 있다. 이러한 편익은 시장에서 거래되지 않기 때문에, 본 연구에서는 조건부가치추정법으로 추정했다. 본 연구에 따르면 한국형 공간정보시스템의 간접적 편익이 적지 않은 것으로 나타났다. 간접적 편익을 실제로 비용편익분석의 편익항목으로 포함시킬 것인지는 학계에서 더 논의할 필요가 있다. 실제로 외국의 경우, 간접적 편익 가운데 일부는 비용편익분석의 편익으로 인정하는 것을 권하고 있다. 본 연구는 앞으로 그러한 논의의 토대가 될 수 있을 것으로 보인다. This study estimated indirect economic benefits of the introduction of Korean Spatial Information System. Korean academic society has been reluctant to consider indirect benefits as an item of benefits in cost-benefit analysis. Nevertheless, other countries including England recommend to consider some indirect benefits like option value as an important item of cost-benefit analysis, especially in the case of transportation projects. This study estimated indirect benefits of the introduction of Korean Spatial Information System using Contingent Valuation Methods: Indirect benefits of the project are so significant in terms of statistics and substantial in terms of magnitude that decision making can differ from the case without consideration of such indirect benefits.

회원작품 - 서초동 K주택

이영성,Lee, Yeong-Seong 대한건축사협회 1997 建築士 Vol.1997 No.9

회원작품 - 뜰네 집

이영성,Lee, Yeong-Seong 대한건축사협회 1997 建築士 Vol.1997 No.11

회원작품 - 수동 전원주택 4세대 동거형

이영성,Lee, Yeong-Seong 대한건축사협회 2004 建築士 Vol.2004 No.5

LaCr_xCo_1-xO₃/Li_1.3Al_0.3Ti_1.7(PO₄)₃의 적층구조를 가지는 가스센서 제조와 그의 NO_x 검지특성

이영성,송정환,Lee, Young-Sung,Shimizu, Y.,Song, Jeong-Hwan 한국재료학회 2015 한국재료학회지 Vol.25 No.8

Impedancemetric $NO_x$ (NO and $NO_2$) gas sensors were designed with a stacked-layer structure and fabricated using $LaCr_xCo_{1-x}O_3$ (x = 0, 0.2, 0.5, 0.8 and 1) as the receptor material and $Li_{1.3}Al_{0.3}Ti_{1.7}(PO_4)_3$ plates as the solid-electrolyte transducer material. The $LaCr_xCo_{1-x}O_3$ layers were prepared with a polymeric precursor method that used ethylene glycol as the solvent, acetyl acetone as the chelating agent, and polyvinylpyrrolidone as the polymer additive. The effects of the Co concentration on the structural, morphological, and $NO_x$ sensing properties of the $LaCr_xCo_{1-x}O_3$ powders were investigated with powder X-ray diffraction, field emission scanning electron microscopy, and its response to 20~250 ppm of $NO_x$ at $400^{\circ}C$ (for 1 kHz and 0.5 V), respectively. When the as-prepared precursors were calcined at $700^{\circ}C$, only a single phase was detected, which corresponded to a perovskite-type structure. The XRD results showed that as the Co concentration of the $LaCr_xCo_{1-x}O_3$powders increased, the crystal structure was transformed from an orthorhombic phase to a rhombohedral phase. Moreover, the $LaCr_xCo_{1-x}O_3$ powders with $0{\leq}x<0.8$ had a rhombohedral symmetry. The size of the particles in the $LaCr_xCo_{1-x}O_3$powders increased from 0.1 to $0.5{\mu}m$ as the Co concentration increased. The sensing performance of the stack-structured $LaCr_xCo_{1-x}O_3/Li_{1.3}Al_{0.3}Ti_{1.7}(PO_4)_3$ sensors was found to divide the impedance component between the resistance and capacitance. The response of these sensors to NO gas was more sensitive than that to $NO_2$ gas. Compared to other impedancemetric sensors, the $LaCr_{0.8}Co_{0.2}O_3/Li_{1.3}Al_{0.3}Ti_{1.7}(PO_4)_3$ sensor exhibited good reversibility and reliable sensingresponse properties for $NO_x$ gases.

Polymeric Precursor법에 의한 LaMeO₃ (Me = Cr, Co)의 제조 및 NOx 가스 검지 특성

이영성,송정환,Lee, Young-Sung,Shimizu, Y.,Song, Jeong-Hwan 한국재료학회 2011 한국재료학회지 Vol.21 No.8

[ $LaMeO_3$ ](Me = Cr, Co) powders were prepared using the polymeric precursor method. The effects of the chelating agent and the polymeric additive on the synthesis of the $LaMeO_3$ perovskite were studied. The samples were synthesized using ethylene glycol (EG) as the solvent, acetyl acetone (AcAc) as the chelating agent, and polyvinylpyrrolidone (PVP) as the polymer additive. The thermal decomposition behavior of the precursor powder was characterized using a thermal analysis (TG-DTA). The crystallization and particle sizes of the $LaMeO_3$ powders were investigated via powder X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and particle size analyzer, respectively. The as-prepared precursor primarily has $LaMeO_3$ at the optimum condition, i.e. for a molar ratio of both metal-source (a : a) : EG (80a : 80a) : AcAc (8a) inclusive of 1 wt% PVP. When the as-prepared precursor was calcined at $700^{\circ}C$, only a single phase was observed to correspond with the orthorhombic structure of $LaCrO_3$ and the rhombohedral structure of $LaCoO_3$. A solid-electrolyte impedance-metric sensor device composed of $Li_{1.5}Al_{0.5}Ti_{1.5}(PO_4)_3$ as a transducer and $LaMeO_3$ as a receptor has been systematically investigated for the detection of NOx in the range of 20 to 250 ppm at $400^{\circ}C$. The sensor responses were able to divide the component between resistance and capacitance. The impedance-metric sensor for the NO showed higher sensitivity compared with $NO_2$. The responses of the impedance-metric sensor device showed dependence on each value of the NOx concentration.

WLAN 시스템 적용 가능한 무선 USB 동글용 변형된 모노폴 안테나의 설계 및 제작

이영성,문승민,김기래,윤중한,Lee, Yeong-Seong,Mun, Seung-Min,Kim, Gi-Rae,Yoon, Joong-Han 한국정보통신학회 2015 한국정보통신학회논문지 Vol.19 No.10

본 논문에서는 기존의 평면형 모노폴 안테나에서 변형된 구조를 갖는 무선 USB 동글용 내장형 안테나를 제안한다. 제안된 안테나는 기존의 모노폴 구조에 'n' 구조를 결합 한 후 Strip1, Strip2, Strip3를 삽입하여 이중 광대역 특성을 구현하였고, 50-Ω 동축케이블을 이용하여 급전하였다. 안테나는 유전율 4.4인 FR-4 기판 위에 설계되었고 전체 크기는 10 mm(W) × 50 mm(L) × 1mm(t) 이다. 반사손실 측정 결과 -10dB를 기준으로 740 MHz (2.26 ~ 3.0 GHz), 1,200 MHz (5.16 ~ 6.36 GHz)의 이중 공진 특성을 확인하였다. 또한 동작 주파수 대역에서 전방향의 방사패턴을 얻었으며, 2.4 GHz대역에서 최대이득 2.26∼3.81 dBi 그리고 5.5 GHz대역에서 최대이득 2.21∼5.79 dBi의 값을 얻었다. In this paper, we propose a built-in antenna for wireless USB dongle which has a modified structure from the existing planar monopole antenna. The proposed antenna implemented a dual-band characteristic by inserting Strip1, Strip2, Strip3 into the monopole structure combined with 'n' shape and feeded 50-Ω using coaxial cable. The antenna is designed on an FR-4 substrate of which the dielectric constant is 4.6, and its overall size is 10 mm × 50 mm × 1mm. Based on the measurement results of the return loss, it was confirmed to satisfy the dual band resonance characteristics of 740 MHz (2.3 ~ 2.7 GHz) and 1,200 MHz (5.15 ~ 5.825 GHz) by -10 dB. In addition, we obtain the omni-directional radiation pattern measurements in the operating frequency bands, and the maximum gain of the proposed antenna has 2.26~3.81 dBi in the 2.4 GHz band and 2.21~5.79 dBi. in the 5.5 GHz band, respectively.

TaqMan 실시간 중합 효소 연쇄반응에 의한 살모넬라속의 검출 및 ompC 항원단백 유전자의 비교

이영성,최경성,김명철,한재철,채준석,Lee, Young-Sung,Choi, Kyoung-Seong,Kim, Myeong-Chul,Han, Jae-Cheol,Chae, Joon-Seok 대한수의학회 2002 大韓獸醫學會誌 Vol.42 No.4

Antigenic ompC genes of S. gallinarum, S. pullorum and S. dublin were characterized among Salmonella spp. isolated from chickens and other animals to identify genetic variation. Salmonella ompC gene fragment (1,027 bp) was amplified by PCR and the amplicons were cloned for comparison of nucleotide sequences. The identity of the sequences between S. gallinarum and S. pullorum, S. gallinarum and S. dublin, S. pullorum and S. dublin was 99.8%, 97.6% and 97.8%, respectively. Also, we found that ompC has some diversity between S. gallinarum and S. pullorum, and other Salmonella spp. which may be useful to type the organisms. Similar to diagnosis in other organisms, the TaqMan PCR method can be applied to rapid and accurate diagnosis of salmonellosis in chickens and other animals. We designed PCR primers and TaqMan probe for flagellin gene (fliC) for detection of Salmonella spp. by TaqMan PCR. The TaqMan PCR method was 10,000 times more sensitive than conventional PCR.

프랑스, 독일, 일본, 중국의 기후 거버넌스 분석

이영성(Young-Sung Lee),김희석(Hee-Seok Kim),김예영(Yeyoung Kim),왕유웨이(Yuwei Wang),최지수(Jisoo Choi),박순애(Soonae Park) 한국환경정책학회 2021 한국환경정책학회 학술대회논문집 Vol.2021 No.10

기반시설 확충을 위한 부담금의 문제점과 개선방향에 관한 연구

이영성(Lee Young Sung) 한국부동산학회 2007 不動産學報 Vol.31 No.-

  1. CONTENTS<BR>  (1) RESEARCH OBJECTIVES<BR>  Since 1990s Korea has introduced various fees for infrastructure installment. Such introduction is based on people"s consensus that urban development should proceed with adequate public facilities. However various fees for infrastructure installment in Korea still has lots of problems. This paper is to find out problems and policy recommendations. For that purpose, it first reviews related theories and overseas cases and draws frameworks to evaluate Korean institution. It examines critically Korean institution focusing on rational nexus principle.<BR>  (2) RESEARCH METHOD<BR>  Literature review, examination of relating laws<BR>  (3) RESEARCH RESULTS<BR>  Implementation of various fees for infrastructure installment based on rational nexus principle enhances efficient resource allocation. However, Korean fees for infrastructure installment does not comply with the rational nexus principle. Calculation of such fees does not properly reflect marginal social costs created by urban developments. Revenue from them are often spent to even sites and infrastructure which are not related with the developments. No laws require capital improvement program. Unlike other countries, various fees for infrastructure are not integrated in Korea. Furthermore, local governments have very limited discretion in managing such fees.<BR>  2. RESEARCH RESULTS<BR>  Korean fees for infrastructure needs much reform in the future. Various fees for infrastructure should be integrated on to the direction that local governments can manage with more discretion. Calculation and expenditure should be managed by rational nexus principle.