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Sangmoo Yoon,Gun-Eik Jang 한양대학교 세라믹연구소 2021 Journal of Ceramic Processing Research Vol.22 No.1
A hybrid structure of Mn (2.59 wt.%) doped SnO2 (MTO)/Ag/MTO films with refractive index matching layers (IMLs) wasdeposited on PET substrate by a RF/DC magnetron sputtering method at room temperature. To match the refractive index(n) of MTO/Ag/MTO/PET film, high and low refractive index materials of MTO (n = 2.02) and SiO2 (n = 1.52) were placedbetween MTO/Ag/MTO and PET substrate, respectively. In order to evaluate the effect of IMLs on the reflectivity and colorvariation, an optical simulation program, Essential Macleod Program (EMP) was adopted, in advance. From EMP simulation,the multilayer film of MTO (40 nm)/Ag (13 nm)/MTO (40 nm) with optimized IMLs of SiO2 (120 nm)/MTO (10 nm) showsthe excellent optical transmittance above 86.1% at the 550 nm wavelength, and the pattern visible defect was reduced ascompared with the reference film of MTO/Ag/MTO/PET film without IMLs. From the bending test, the multilayer film ofMTO (40 nm)/Ag (13 nm)/MTO (40 nm)/SiO2 (90 nm)/MTO (10 nm)/PET showed excellent flexible properties. There was only10% resistance variation under 10,000 bending cycle with curvature radius of 5 mm.
Identification of genes associated with leaf-morphology in Brassica rapa L. using Br135K microarray
Sangmoo Lee,Yoonkang Hur 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
Chinese cabbage is one of most important vegetable crop in Eastern Asian countries including Korea. Because Chinese cabbage is a leafy vegetable, genetic research with respect to the leaf morphology is important. In this research, we have used two inbred lines of Chinese cabbages (Kenshin and RCBr) and generated recombinant lines having various leaf morphology. In F2 population of Kenshin X RCBr, leaf shape showed very dramatic variations with normal distribution in terms of leaf size, petiole length, leaf margin and etc. Microarray with a 135K DNA chip (version 3) integrated 2 sets of total Chinese cabbage genes. Biological process of candidate genes was classified into transcription factor, genes encoding kinase activity protein, protein folding related genes, oxidation-reduction process genes. Putative leaf-morphology-related genes were 142 that are involed in phytohormone pathway genes, cell proliferation & cell elongation related genes and genes controlling leaf morphogenesis etc. These genes are further classified to phytohormone signaling-associated genes (SAUR44, PIN2, CPK6, RDUF2), leaf development regulating genes (DWF4, CUC2, TCP15, BLH4, NGA4), and cell division and cell growth related genes (ILP1, TCTP, EMB1027).
Implementation of RFID-based SCM in the South Korean Textile Industry
( Sangmoo Shin ),( Euisung Jung ) 한국패션비즈니스학회 2019 패션 비즈니스 Vol.23 No.6
South Korea is known for its major manufacturing capabilities in semi-conductor, automobile, and IT industries. However, little is known about the competitive capabilities of South Korea’s textile industry. The present study presents information about how Korean textile firms build their competitive capabilities on multiple fronts. Through a case study of two businesses operating in the South Korean textile and apparel industry, this paper illustrates a series of competitiveness enhancing initiatives, starting with the implementation of radio frequency identification (RFID). The main contribution of this article is the focus on how the interdisciplinary nature of the textile and apparel industry can benefit from and optimize the use of Information Technology through sustained efforts on multiple fronts. This study suggests that Korean textile firms approach their competitive capabilities in terms of strategic direction, innovative priorities, and operational focus. In the competitive global business environment, this could be the solution for the textile and apparel industry, by helping for the survival in the upcoming information age. Specifically, by adopting RFID-based SCM, firms can gain a competitive capability that promises sustainable growth in the future.
[가솔린엔진부문] 라디칼 인젝터를 장착한 예혼합 압축착화엔진의 주실당량비 변화에 따른 연소특성
조상무(Sangmoo Jo),박권하(Kweonha Park) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.11_1
A premixed-compression-ignition engine has been studied to improve the performances on efficiency and exhaust emissions. However those systems have been in some difficulties for controlling combustion. This study introduces the system having a radical injector placed on the center of the cylinder head and investigates the combustion behavior in a main chamber with equivalence ratio variation.<br/>
Integrated Magneto–Electrochemical Sensor for Exosome Analysis
Jeong, Sangmoo,Park, Jongmin,Pathania, Divya,Castro, Cesar M.,Weissleder, Ralph,Lee, Hakho American Chemical Society 2016 ACS NANO Vol.10 No.2
<P>Extracellular vesicles, including exosomes, are nanoscale membrane particles that carry molecular information on parental cells. They are being pursued as biomarkers of cancers that are difficult to detect or serially follow. Here we present a compact sensor technology for rapid, on-site exosome screening. The sensor is based on an integrated magneto–electrochemical assay: exosomes are immunomagnetically captured from patient samples and profiled through electrochemical reaction. By combining magnetic enrichment and enzymatic amplification, the approach enables (i) highly sensitive, cell-specific exosome detection and (ii) sensor miniaturization and scale-up for high-throughput measurements. As a proof-of-concept, we implemented a portable, eight-channel device and applied it to screen extracellular vesicles in plasma samples from ovarian cancer patients. The sensor allowed for the simultaneous profiling of multiple protein markers within an hour, outperforming conventional methods in assay sensitivity and speed.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2016/ancac3.2016.10.issue-2/acsnano.5b07584/production/images/medium/nn-2015-07584h_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nn5b07584'>ACS Electronic Supporting Info</A></P>
Lee, Sangmoo,Kim, Jin Il,Lee, Ilseob,Park, Man-Seong 대한미생물학회 2013 Journal of Bacteriology and Virology Vol.43 No.4
Influenza virus is a serious pathogen that burdens society with health care costs, and can lead to fatality. The virus is dealt with currently by vaccination and anti-influenza drugs. However, vaccines need to be improved towards safer and more efficient production formats, and drugs need to be constantly renewed to cope with resistances. That the neuraminidase inhibitors are only drugs currently available warrants urgent attention to an alternative anti-influenza target. In this paper we introduce studies on fusion activity of influenza virus hemagglutinin (HA), and discuss how to best utilize the knowledge for an improved vaccine development and an anti-influenza drug search. Potential application of mutations resulting in changes in fusion activity to cell culture optimized vaccine virus development and strategies to develop broad spectrum anti-influenza drugs through targeting the conserved fusion domain of the HA are discussed.
Lee, SangMoo,Jung, YeHyun,Kwak, Kisung,Rhee, Joonkyu,Yoo, Jaeun,Youm, Dojun,Kim, Hosup,Ha, Hongsoo,Oh, SangSoo IOP Publishing Ltd 2010 Superconductor science & technology Vol.23 No.4
<P>A simple model for estimating the hysteresis energy loss of coated conductors under a general load line was studied. We took advantage of the characteristic line <I>I</I><SUB>b</SUB>(<I>H</I><SUB>a</SUB>) to determine the major parameters used in this model. The value of <I>I</I><SUB>b</SUB>(<I>H</I><SUB>a</SUB>) was based on the scanning Hall probe measurements (SHP) on a Sm<SUB>1</SUB>Ba<SUB>2</SUB>Cu<SUB>3</SUB>O<SUB>7 − δ</SUB> coated conductor. During SHP measurement, a magnetic field (<I>H</I><SUB>a</SUB>) and current (<I>I</I><SUB>a</SUB>) were applied simultaneously and were varied along 11 different load lines. From the values of SHP measurements, the current density profiles, <I>J</I>(<I>x</I>, <I>H</I><SUB>a</SUB>, <I>I</I><SUB>a</SUB>), were calculated using a numerical inversion method. We define the quantity <I>I</I><SUB>b</SUB> = ∫ <SUB> − <I>w</I></SUB><SUP><I>w</I></SUP>|<I>J</I>(<I>x</I>, <I>H</I><SUB>a</SUB>, <I>I</I><SUB>a</SUB>)| d<I>x</I> and we calculated <I>I</I><SUB>b</SUB> at many points (<I>H</I><SUB>a</SUB>, <I>I</I><SUB>a</SUB>) in every load line. We found that when <I>I</I><SUB>a</SUB> is less than <I>I</I><SUB>b</SUB> and the flux trap regions are absent, the values of <I>I</I><SUB>b</SUB> for all points (<I>H</I><SUB>a</SUB>, <I>I</I><SUB>a</SUB>) constitute a single line <I>I</I><SUB>b</SUB>(<I>H</I><SUB>a</SUB>), which can be easily extrapolated to a high field. This line provided a major parameter for our model. </P>