http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Baek, Sujin,Park, Jong Bae,Lee, Wonjoo,Han, Sung-Hwan,Lee, Jouhahn,Lee, Soo-Hyoung Royal Society of Chemistry 2009 NEW JOURNAL OF CHEMISTRY Vol.33 No.5
<P>Regioregular poly(3-hexylthiophene) (RR-P3HT) nanorod arrays were prepared on the indium tin oxide (ITO) substrate by capillary force in a vacuum oven (0.855 torr, 250 °C) using a drop-coating of RR-P3HT and anodic aluminium oxide (AAO) templates. The AAO templates were prepared by a two step anodizing process in an oxalic acid electrolyte. The templates had a highly ordered structure with a uniform pore diameter of ∼55–80 nm and cell lengths of ∼100–3930 nm. With suitable temperature and capillary force in the vacuum oven, the drop-coated RR-P3HT solution infiltrated the AAO templates. After removal of the AAO template, the RR-P3HT has a nanorod array form, with diameters of ∼55 nm and heights of ∼70 nm.</P> <P>Graphic Abstract</P><P>Regioregular poly(3-hexylthiophene) (RR-P3HT) nanorod arrays were prepared on the ITO substrate by capillary force in a vacuum oven using a drop-coating of RR-P3HT and anodic aluminium oxide (AAO) templates. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b821288k'> </P>
Baek, Sujin,Ha, Su-Jin,Lee, Heechul,Kim, Kiwon,Kim, Dongchoul,Moon, Jun Hyuk American Chemical Society 2017 ACS APPLIED MATERIALS & INTERFACES Vol.9 No.42
<P>The transparent characteristic of dye-sensitized solar cells (DSCs) makes them suitable for building integrated photovoltaic (BIPV) devices. However, the diffusive scattering layer, which is usually used to increase the efficiency of these devices, greatly lowers the transparency of the DSC. This paper described a two-dimensional (2D) photonic crystal (PC) reflector with a sub-micrometer characteristic length that can improve the efficiency of these devices while maintaining transparency. This 2D PCs were fabricated directly onto TiO2 photoelectrodes using colloidal lithography and have the structure of a nanopillar array. A nanopillar with a height of 430 nm was observed to selectively reflect up to 40% of the light of 400-500 nm wavelength. The perceived transparency of the 2D PC electrode was 52%, which is much higher than 0.3% of the conventional scattering layer. The DSC fabricated using the 2D PC electrode demonstrated a maximum photon-to-electric conversion efficiency of 8.23%, which is 18% higher than the pristine electrode. The 2D PC is a highly efficient and wavelength selective reflector that can be applied to various photoelectric conversion devices.</P>
중국인 학습자를 위한 한국어 조사 이/가’, 은는의 교육 - 중국어와의 대응을 중심으로 -
백수진 ( Baek Sujin ) 한국언어문화교육학회 2011 언어와 문화 Vol.7 No.1
Even though, from the viewpoint of typological description, Korean language and Chinese language are different each other in the word order, they are all topic prominence languages. The use rate of the typical topic sentences in using Chinese language is high, and also the use rate of Korean particles '-은/는' presenting topic and old information in using Korean language is high, too. Nevertheless, among the grammatical fallacies of Chinese learners in using Korean language, the fallacy rate of Korean particles '-은/는' and '-이/가' is highest. Thus, the purpose of this paper is to compare and analyse chinese sentence patterns corresponding to the function of Korean particles '-은/는' and '-이/가' in the standpoint of contrastive study. In Chinese language, there are 'about somebody/something', 'Topicalization', double-subject sentence'. 'subject+是+noun', 'when one talks about the first person', 'when one talks about the fact', and 'the structure of old information' corresponding to Korean particles '-은/는' and '-이/가'. As the items corresponding to '-이/가', 'presentative sentence', 'double-subject', 'embedded clauses', '由+subject+verb', '是+{clause+的}', and 'focus-subject' are in Chinese language. Most of the Chinese teachers teaching Korean language are Chinese native speakers or bilinguist( the Korean-Chinese). They can apply the results of comparative analysis into teaching method of Korean language. (Keimyung University)
GC-MS/MS를 이용한 갈색거저리 유충 중 Chlorpyrifos-methyl과 Deltamethrin의 잔류분석법 확립
백수진 ( Sujin Baek ),김이선 ( Leesun Kim ),손경애 ( Kyungae Son ),노현호 ( Hyunho Noh ),문병철 ( Byeong-chul Moon ),김단비 ( Danbi Kim ),오민석 ( Min-seok Oh ),노진호 ( Jin-ho Ro ),김은선 ( Eunsun Kim ) 한국환경농학회 2020 한국환경농학회 학술대회집 Vol.2020 No.-
Nowadays, edible insects are spotlighted as future food in the Korean local market due to its high protein contents. However, food safety for edible insects should be guaranteed. Therefore, this study was aimed to establish the analytical method of chlorpyrifos-methyl and deltamethrin in mealworms to provide data for guidelines on safety of edible insects. The sample preparation was based on modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) EN method. For extraction efficiency, acetonitrile (ACN) instead of ACN containing 0.1% formic acid were investigated. To compare cleanup methods, MgSO<sub>4</sub>, PSA, C18, EMR-lipid ™ and n-hexane were applied to remove protein and fat. After establishing the final analytical method, the control samples were spiked at two levels (10 ㎍/kg, 100 ㎍/kg) and the recovery tests were performed as follows. Five grams of samples were extracted by 10 mL of ACN and added with MgSO<sub>4</sub> 4g, NaCl 1g, NaCitrate 1g and disodium citrate sesquihydrate 0.5g for partitioning. Finally, dispersive-solid phase extraction (MgSO<sub>4</sub> 150mg, PSA 25mg, and C18 25mg) was selected for rapid and efficient cleanup. The samples were analyzed by gas chromatography tandem mass spectrometry. The method limit of quantification of chlorpyrifos-methyl and deltamethrin were 2.5㎍/L and the correlation coefficient (r2) of calibration curve were > 0.99. The recoveries of chloropyrifos-methyl were 82.5 - 114.0 ± 1.6 -3.0% and deltamethrin were 84.9-93.8 ± 5.7 - 6.5 %. Two target pesticides were not detected in the real samples (n=30) of edible insects collected to monitor in South Korea. These results can be useful data for guidelines on safety of mealworms to prepare Positive List System in South Korea.
Sujin Park,Si-Hyoung Park,Ju Yuel Baek,Kwan Soo Kim,Jürgen Roth,Jin Won Cho,Kwang-Min Choe 한국당과학회 2010 한국당과학회 학술대회 Vol.2010 No.1
Modification of nuclear and cytosolic proteins by O-linked N-acetylglucosamine (O-GlcNAc) is ubiquitous in cells. The in vivo function of the protein O-GlcNAcylation, however, is not well understood. Here, we genetically manipulated the cellular O-GlcNAcylation level in Drosophila and found that it promotes developmental growth by enhancing insulin signaling. This alteration of growth is due to cell growth and apoptosis and not to cell proliferation, and is mediated, at least in part, through O-GlcNAcylation of Akt. These results indicate that O-GlcNAcylation is one of the crucial mechanisms involved in control of insulin signaling in normal Drosophila development.
Characterization of <i>Ecklonia cava</i> Alginate Films Containing Cinnamon Essential Oils
Baek, Su-Kyoung,Kim, Sujin,Song, Kyung Bin MDPI 2018 INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES Vol.19 No.11
<P>In this study, <I>Ecklonia cava</I> alginate (ECA) was used as a base material for biodegradable films. Calcium chloride (CaCl<SUB>2</SUB>) was used as a cross-linking agent, and various concentrations (0%, 0.4%, 0.7%, and 1.0%) of cinnamon leaf oil (CLO) or cinnamon bark oil (CBO) were incorporated to prepare active films. The ECA film containing 3% CaCl<SUB>2</SUB> had a tensile strength (TS) of 17.82 MPa and an elongation at break (E) of 10.36%, which were higher than those of the film without CaCl<SUB>2</SUB>. As the content of essential oils (EOs) increased, TS decreased and E increased. Addition of CLO or CBO also provided antioxidant and antimicrobial activities to the ECA films. The antioxidant activity of the ECA film with CBO was higher than that of the film containing CLO. In particular, the scavenging activities of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radicals in the ECA film containing 1% CBO were 50.45% and 99.37%, respectively. In contrast, the antimicrobial activities against <I>Escherichia coli</I> O157:H7, <I>Salmonella</I> Typhimurium, <I>Staphylococcus aureus</I>, and <I>Listeria monocytogenes</I> were superior in the ECA films with CLO. These results suggest that ECA films containing CLO or CBO can be applied as new active packaging materials.</P>
Baek, Jin Young,Park, Sujin,Park, Jiyoung,Jang, Ji Yong,Wang, Su Bin,Kim, Sin Ri,Woo, Hyun Ae,Lim, Kyung Min,Chang, Tong-Shin Elsevier 2017 The Journal of investigative dermatology Vol.137 No.6
<P>UVB light induces generation of reactive oxygen species, ultimately leading to skin cell damage. Mitochondria are a major source of reactive oxygen species in UVB-irradiated skin cells, with increased levels of mitochondrial reactive oxygen species having been implicated in keratinocyte apoptosis. Peroxiredoxin III (PrxIII) is the most abundant and potent H2O2-removing enzyme in the mitochondria of most cell types. Here, the protective role of PrxIII against UVB-induced apoptosis of epidermal keratinocytes was investigated. Mitochondrial H2O2 levels were differentiated from other types of ROS using mitochondria-specific fluorescent H2O2 indicators. Upon UVB irradiation, PrxIII-knockdown HaCaT human keratinocytes and PrxIII-deficient (PrxIII e/e) mouse primary keratinocytes exhibited enhanced accumulation of mitochondrial H2O2 compared with PrxIII-expressing controls. Keratinocytes lacking PrxIII were subsequently sensitized to apoptosis through mitochondrial membrane potential loss, cardiolipin oxidation, cytochrome c release, and caspase activation. Increased UVB-induced epidermal tissue damage in PrxIII e/e mice was attributable to increased caspasedependent keratinocyte apoptosis. Our findings show that mitochondrial H2O2 is a key mediator in UVBinduced apoptosis of keratinocytes and that PrxIII plays a critical role in protecting epidermal keratinocytes against UVB-induced apoptosis through eliminating mitochondrial H2O2. These findings support the concept that reinforcing mitochondrial PrxIII defenses may help prevent UVB-induced skin damage such as inflammation, sunburn, and photoaging.</P>