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韓相謙,朱京在,金龍八,李好璡 건국대학교부설 산업기술연구소 1978 논문집 Vol.4 No.-
In the past, there were many differences between living standard of urban area and that of rural area. And annual gross income of rural inhabitants did not reach that of urban laborers, but from 1974, income of rural dwellers became to reach over urban laborers' income. in early of 1980s, annual gross income of rural dwellers will be increased to ₩1,400,000 per house, which will encourage them to improve their living environment. To improve existing rural living standard to livable and decent living environment, it would be required to reform rural community function, its size and new living zone out of consideration for increase of annual gross income, and change of living pattern, their convention, size of production, cultivating method and income sources in rural areas. Through the investigation of existing environment conditions in rural area, we selected Homyong-Myon, Yechon-kun, Kyongsang-Bukdo as case study and tried to make actual rural planning of this area to show sampling study of rural renewal planning. It is recommendable that community facilities and existing living zone in rural area should be rearranged for the reasonable harmony with improved living environment and matching with existing administrative district as possible, new living zone had better be classified into 4 categories, as below: 1)Basic Living Zone This would include 50-70 households within about 1km semidiameter boundary where daily activities of inhabitants would be conducted. 2)First Living Zone This would include about 5-10 basic living Zones within about 2-3km semidiameter boundary where weekly activities of inhabitants would be conducted and elementary school facilities would be main focus of this community area. 3)Second Living Zone This would be main living Zone in rural community area and include 3-4 first living Zones within 4-6km semidiameter boundary where secondary school and Myon district office would be located and monthly activities of inhabitants would be main community behaviors in this area. 4)Third Living Zone This would be matching with Gun district living community and synthetic living center in rural community area within 15-30km semidiameter boundary. This thesis just shows convenient division of living Zones for decent rural community environment and functional relationships between each living Zones, but further study should be proceeded for the precise planning of community facilities-their location and scope of size in each living zone.
Kim, Dae Kyom,Kim, Nam Dong,Park, Seung-Keun,Seong, Kwang-dong,Hwang, Minsik,You, Nam-Ho,Piao, Yuanzhe Elsevier 2018 Journal of Power Sources Vol.380 No.-
<P><B>Abstract</B></P> <P>Flexible all-solid-state supercapacitors are desirable as potential energy storage systems for wearable technologies. Herein, we synthesize aminophenyl multiwall carbon nanotube (AP-MWCNT) grafted polyimide precursor by <I>in situ</I> polymerization method as a nitrogen-doped carbon precursor. Flexible supercapacitor electrodes are fabricated via a coating of carbon precursor on carbon cloth surface and carbonization at high temperature directly. The as-obtained electrodes, which can be directly used without any binders or additives, can deliver a high specific capacitance of 333.4 F g<SUP>−1</SUP> at 1 A g<SUP>−1</SUP> (based on active material mass) and excellent cycle stability with 103% capacitance retention after 10,000 cycles in a three-electrode system. The flexible all-solid-state supercapacitor device exhibits a high volumetric capacitance of 3.88 F cm<SUP>−3</SUP> at a current density of 0.02 mA cm<SUP>−3</SUP>. And also the device can deliver a maximum volumetric energy density of 0.50 mWh cm<SUP>−3</SUP> and presents good cycling stability with 85.3% capacitance retention after 10,000 cycles. This device cell can not only show extraordinary mechanical flexibilities allowing folding, twisting, and rolling but also demonstrate remarkable stable electrochemical performances under their forms. This work provides a novel approach to obtain carbon textile-based flexible supercapacitors with high electrochemical performance and mechanical flexibility.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Nitrogen doped carbon was derived for flexible symmetric supercapacitors. </LI> <LI> The electrodes deliver high specific capacitances of 333.4 F g<SUP>−1</SUP> at 1 A g<SUP>−1</SUP>. </LI> <LI> The fabricated device shows excellent flexibility and mechanical stability. </LI> <LI> The device presents the volumetric energy density of 0.5 mWh/cm<SUP>3</SUP>. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Design and implementation of IP data reassembly processor for multimedia STB
Won-Ho Kim,Ho-Kyom Kim IEEE 2008 IEEE TRANSACTIONS ON CONSUMER ELECTRONICS - Vol.54 No.3
<P>This paper describes hardware-based IP data reassembly processor for multimedia STB (set-top-box) compatible with DVB-RCS. The conventional IP reassembly scheme is based on software processing of multimedia STB. As the transmission rate increases in order to support the broadband multimedia data services, the CPU load of multimedia STB is increased and reassembly performance is degraded. To provide smooth and flexible broadband multimedia data services, we proposed hardware based high speed reassembly processor. It has been tested and confirmed to meet required functions and performances.</P>
김석겸 ( Sog-kyom Kim ),심정민 ( Jung-min Shim ),김태호 ( Tae-ho Kim ),김승도 ( Seung-do Kim ) 한국폐기물자원순환학회(구 한국폐기물학회) 2018 한국폐기물자원순환학회 심포지움 Vol.2018 No.1
국내 온실가스 배출권거래제는 제1차 계획기간(2015년~2017년)이 종료되고 제2차 계획기간(2018년~2020년)이 시행되었다. 국가 배출권의 할당은 「온실가스 배출권의 할당 및 거래에 관한 법률」에 근거하며 국가 온실가스 감축목표의 비용효과적 달성을 위하여 계획기간별로 배출권거래제를 운영하고 있다. 업체별 배출권 할당은 배출허용총량에 따라 정해진 계획기간 중 배출권을 할당대상업체 단위로 배분하고 있으며, 업체별 배출권 할당량 산정 방법에 따라 ‘과거배출량 기반 할당’과 ‘과거활동자료량 기반 할당’으로 구분하고 있으며 현재 매립지는 ‘과거배출량 기반 할당’을 적용받는다. 매립지의 경우 당해년에 매립된 폐기물이 당해년에 메탄으로 전부 발생되는 것이 아니고, 1년의 지연시간을 두고 50년에 걸쳐 메탄이 발생되므로 타 산업에 비하여 활동자료의 기준 시점과 메탄 발생 시점이 서로 다르다는 차이점이 있다. 또한 타 산업에 비하여 배출량 산정값의 불확도가 커, 시장기반의 거래제도에서 거래상품의 불확실성은 시장기능을 훼손할 수 있는 개연성이 있는 부분이다. 2016 미국의 NIR(National Inventory Report)에 따르면 CO<sub>2</sub> 배출 부문의 불확도는 -2% ~ 5% 수준이나 매립부문에서의 CH<sub>4</sub>의 경우 불확도는 -30% ~ 61%로 매우 높다. 온실가스 배출권 거래제를 운영하고 있는 해외의 사례를 보면, 뉴질랜드의 경우 매립을 포함하고 있으나 당해 연도에 매립된 폐기물의 양에 한정하여 운영하고 있고, 폐기물 반입수수료를 사업자가 결정할 수 있는 구조로 운영되고 있어 매립부문의 할당은 전부 유상할당으로 운영되고 있다. 그 외 대부분의 나라에서는 매립부문의 온실가스 배출량은 불확도가 높은 문제점을 들어 할당대상에서는 제외하고 있고, 미국의 RGGI에서 상쇄배출권으로 인정하고 있다. 본 연구의 목적은 매립지의 메탄발생 특성을 파악하고 온실가스 배출권 거래제의 현황을 파악하여, 매립부문이 배출권거래제에 포함되는 것의 문제점 및 시사점을 도출하는 것에 있다.