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The Comparison of User Preference on Domestic versus a Foreign 3D Virtual Try-On System (국내외 3차원 가상 의복 착장시스템에 대한 선호도 비교)

  • Do, Wol-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.34 no.7
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    • pp.1184-1196
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    • 2010
  • Several applications of body scanning technology have been commercialized or are currently under development. The virtual fit from 3D scans is most advanced form of virtual try-on. This article is an analysis of the comparison of user preferences for domestic versus foreign 3D virtual try-on systems. For this study, domestic i-Fashion Mall (www.ifashionmall.co.kr) and a Canadian company, My Virtual Model (www.mvm.com) were selected as the most representative online retailers that offer a virtual try-on system. The respondents were comprised of 70 Korean female college students in the age group 20-29. A five point Likert scale was used to evaluate the degree of the preference of virtual avatar and try-on images. T-test, cross table, and a chi-square independence test were conducted for data analysis. The results are as follow. 1. The representation about current looks according to each virtual fit image indicates that MVM is more accurate than i-Fashion Mall. 2. About decision confidence, respondents have decision confidence in i-Fashion Mall in the case of the avatar image; however, respondents have confidence in MVM or the fit image. 3. There were no significant differences in among waist size groups in accuracy, trust of each avatar image, while there were significant differences among waist size groups in the accuracy and trust of each virtual fit image. 4. About ease of use, respondents answered that i-Fashion Mall is superior to MVM. 5. The respondents prioritized the ‘fitting report’ of i-Fashion Mall and ‘Weight loss’ of MVM over other functionalities.

Detection of chlorine in tap water using a metal gold electrode (금속 Au 전극을 이용한 먹는 물 속 염소 이온 검출)

  • Ly, Suw-Young;Choa, Sung-Hoon
    • Analytical Science and Technology
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    • v.24 no.3
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    • pp.219-224
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    • 2011
  • Voltammetric analysis of Cl(I) ion was performed using a metal gold (Au) electrode (AE) and a carbon nanotube electrode (CNTE). After the examination, the AE was found to have more sensitively detected Cl(I) than CNTE. The optimum analytical conditions for the cyclic voltammetry (CV) and the square wave (SW) stripping voltammetry were performed using AE. The detection limit of $6.5\;{\mu}g/L$ Cl(I) was attained. The developed techniques were compared with the common Cl meter and applied to water systems.

Enhancement in Open-circuit Voltage of Methylammmonium Lead Halide Perovskite Solar Cells Via Non-stoichiometric Precursor (비화학양론적 전구체 조성 조절을 통한 페로브스카이트 태양전지의 개방전압 향상)

  • Yun, Hee-Sun;Jang, Yoon Hee;Lee, Doh-Kwon
    • Current Photovoltaic Research
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    • v.6 no.1
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    • pp.12-16
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    • 2018
  • The interest in perovskite solar cells has been skyrocketed owing to their rapid progress in efficiency in recent years. Here, we report the effect of non-stoichiometry in the methylammonium lead trihalide ($MAPbI_3$) precursors used in a solution process with different MAI : $PbI_2$ ratios of 1 : 0.96, 1 : 1.10, 1 : 1.15, and 1:1.20. With an increase in the $PbI_2$ content, the $PbI_2$ secondary phase was found to form at grain boundary region of perovskite thin films, as evidenced by X-ray diffraction (XRD) and scanning electron microscopy (SEM). In terms of device performance, open-circuit voltage in particular is significantly improved with increasing the molar ratio of $PbI_2$, which is possibly ascribed to the reduction in recombination sites at grain boundary of perovskite and hence the prolonged life time of light-generated carriers according to the reported. As a result, the $PbI_2-excess$ devices exhibited a higher power conversion efficiency compared to the MAI-excess ones.

Effects of Exercise and/or High Fat Diet on Carnitine and Carnitine Palmitoyltransfersase-I mRNA Levels in Rats (운동 및 고지방식이가 흰쥐의 Carnitine 농도와 carnitine Palmitoyltransferase-I mRNA 수준에 미치는 영향)

  • 손희숙;오석흥;차연수
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.3
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    • pp.670-676
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    • 1999
  • The effect of exercise and/or high fat diet on carnitine status and carnitine palmitoyltransferase I(CPT I) level were investigated in Weanling Sprague Dawley rats. The rats were fed an AIN 76 diet or a modified high fat AIN diet, supplemented with 35% corn oil, for 31 days. During the 31 day period half of the animals in each dietary group were exercised on a treadmill for 90 minutes per day. Carnitine concentrations were determined in plasma and liver and CPT I mRNA levels were measured by Northern blot analysis with CPT I cDNA probe in livers of rats. Exercise rats gained less weight than non exercised rats during the study for high fat diet group. Exercise rats had a higher plasma acid soluble acylcarnitine and acid insoluble acylcarnitine concnetrations than non exercised rats for normal diet group. Exercise or high fat diet increased liver carnitine concentration, but a mixed effect was not shown. In exercised rats, CPT I mRNA levels increased significantly relative to those of nonexercised rats. CPT I mRNA levels also increased when compared high fat fed rats with those of normal diet fed rats. These data suggest that there is a correlation between carnitine concen trations and CPT I mRNA levels and that CPT I can be regulated at the transcriptional level by exercise and/or high fat diet.

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SOCLE ELEMENTS OF NON-LEVEL ARTINIAN ALGEBRAS

  • SHIN YONG SU
    • Journal of applied mathematics & informatics
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    • v.17 no.1_2_3
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    • pp.605-614
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    • 2005
  • We show that an Artinian O-sequence $h_0,h_1,{\cdots},h_{d-1},h_d\;=\;h_{d-1},h_{d+l}\;>\;h_d$ of codimension 3 is not level when $h_{d-1}\;=\;h_d\;=\;d + i\;and\;h{d+1}\;=\;d+(i+1)\;for\;i\;=\;1,\;2,\;and\;3$, which is a partial answer to the question in [9]. We also introduce an algorithm for finding noncancelable Betti numbers of minimal free resolutions of all possible Artinian O-sequences based on the theorem of Froberg and Laksov in [2].

Aromatization of 1,3,5-Trisubstituted of 4,5-Dihydro-1H-Pyrazoles by In-Situ Generation of I+ from Hydrogen Peroxide/Acids/Iodide Potassium or Sodium Systems

  • Maleki, Behrooz;Veisi, Hojat
    • Bulletin of the Korean Chemical Society
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    • v.32 no.12
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    • pp.4366-4370
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    • 2011
  • A simple, green and cost-effective protocol was used for the aromatization of 1,3,5-trisubstituted-2-pyrazolines to the corresponding pyrazoles by in situ generation of iodine ($I^+$) from $H_2O_2$/AcOH or SSA or oxalic acid /KI or NaI system under thermal condition with moderate to good yields.

Immunostimulating Lectins from Marine Natural Products: Characteristics of the MLA-I, MLA-II and MLA-III (해양 천연물로부터 면역기능 조정제 렉틴 개발 : MLA-I, MLA-II, MLA-III의 특성)

  • 정시련;김장환;전경희
    • YAKHAK HOEJI
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    • v.39 no.3
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    • pp.243-251
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    • 1995
  • Three new lectins, MLA-I, MLA-II and MLA-III, have been isolatedand purified from the hemolymph of Meretrix lusoria and reported previously. Biophysicochemical characteristics were investigated with these three MLA lectins. The MLA lectins agglutinated human erythrocytes non specifically and proved as D-galactose group carbohydrate specific. Molecular weight of ML.A-I. II and III were estimated to be 330, 500 and 310KD, respectively, by gel filtration on Sepharose CL-6B column. On SDS-polyacrylamide gel electrophoresis, ML.A-I was dissociated into a single subunit of 42KD, MLA-II was into the twelve subunits of 46, 32, 30, 28, 25, 23. 22, 20. 19, 16, 15, and 14KD, and MLA-III was into the two subunits of 72 and 44KD. The pl of MLA-I, II, III were 4.0. 4.9 and 5.0. Amino acid analysis revealed a high contents of acidic and hydroxy amino acids, and a paucity of sulfur containing amino acids. Proline was not contained in MLA-II.

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A Study on the Polarity Discrimination Method of the Stator Windings for 3 Phase Induction Motors based on the Residual Magnetism and I Winding Connection (잔류자기와 I 결선에 의한 3상유도전동기 고정자 권선의 극성판별법에 대한 연구)

  • Choi, Soon-Man
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.64 no.1
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    • pp.72-77
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    • 2015
  • When connecting 6 lead wires from stator windings to the terminals of 3 phase induction motors for Y or ${\triangle}$ connection, it is feared that the polarities of windings could be reversed each other if the wire tags are lost or erased, resulting in inadmissibly high current to motors in case of starting. To protect motors against such situations, some test procedures are necessary during wire connection which need to be easy ways to electricians without particular tools except a general multi-tester and with less time-consuming in the field. This study focuses on a test measure to satisfy these requirements which is able to provide them a convenient procedure for winding polarity discrimination considering the field condition. Here, the proposed measure utilizes the residual magnetism of the rotor and checks the indication of voltage or current at windings which are induced by the residual flux of rotor when rotating it by hands with 3 stator windings connected in the form of I connection. Principle characteristics and experiment results for this method are analyzed in the view of the effectiveness and applicability for the winding polarity discrimination.

Preparation and Structure of $[Ni(L)]I_2$ (L:3,5,10,12-Tetramethyl-1,4,8,11-tetraazacyclotetradecane) ($[Ni(L)]I_2$ (L:3,5,10,12-Tetramethyl-1,4,8,11-tetraazacyclo-tetradecane) 합작물의 합성 및 구조)

  • 최기영;김동원
    • Korean Journal of Crystallography
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    • v.8 no.2
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    • pp.119-123
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    • 1997
  • The complex [Ni(L)]I2 (1) (L:3,5,10,12-Tetramethly-1,4,8,11-tetraazacyclotetradecane) has been prepared and characterized by X-ray diffraction methods. The complex 1 crystallized in the orthorhombic system, space group Pcab with cell parameters a=13.293(1) Å, b=28.550(7) Å, c=10.804(1) Å, z=8. Least-squares refinement of 1 led to a R(Rw) factor of 0.043 (0.046) for 1851 observed reflections of Fo>3o (Fo). The crystal structure of 1 has a slightly distorted square-planar geometry and adopts the trans-III conformation.

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Complete genome sequence of serotype 3 Streptococcus suis INT-01, isolated from a domestic pig in Korea

  • Park, Seon Young;Kim, In Hwang;Yu, Hyun Jin;Paik, Hyoung Rok;Son, Jee Soo;Kim, Ji Hyung
    • Journal of Animal Science and Technology
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    • v.63 no.3
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    • pp.662-665
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    • 2021
  • Streptococcus suis is a major pig pathogen causing severe economic losses to the swine industry. This study aimed to analyze the genome of S. suis strain INT-01 isolated from a domestic pig in Korea. We found that the genome of strain INT-01 contains 2,092,054 bp, with a guanine (G) + cytosine (C) content of 41.3%, and the capsular polysaccharide synthesis locus of this strain is almost identical to that of serotype 3 S. suis strain 4961 isolated from China, suggesting that these isolates can be classified as serotype 3. Genomic analyses revealed that strain INT-01 is an extracellular protein factor (epf)-/ muraminidase-released protein (mrp)+/ suilysin (sly)- S. suis, which is the most prevalent genotype in Korea, and several virulence-related genes associated with the pathogenicity of S. suis were also detected. The genomic information of strain INT-01 may provide important insights into the development of control strategies against S. suis infections in Korea.