http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kim, H.J.,Lee, S.E.,Lee, J.,Jung, J.Y.,Lee, E.S.,Choi, J.H.,Jung, J.H.,Oh, M.,Hyun, S.,Choi, D.G. North-Holland 2014 Physica E, Low-dimensional systems & nanostructure Vol.61 No.-
<P>We designed and fabricated a gold (Au)-coated nanowires/graphene (Au-SiNWs/G) hybrid composite as a polymer binder free anode for rechargeable lithium ion batteries (LIBs). A large amount of SiNWs for LIB anode materials can be prepared by metal assisted chemical etching (MaCE) process. The Au-SiNVVs/G composite film on current collector was obtained by vacuum filtration using an anodic aluminum oxide (AAO) membrane and hot pressing method. Our experimental results show that the Au-SiNVVs/G composite has a stable reversible capacity of about 1520 mA h/g which was maintained for 20 cycles. The Au-SiNWs/G composite anode showed much better cycling performance than SiNWs/ polyvinylidene fluoride (PVDE)/Super-P, SiNWs/G composite, and pure SiNWs anodes. The improved electrochemical properties of the Au-SiNWs/G composite anode material is mainly ascribed to the composite's porous network structure.,(C) 2014 Elsevier B.V. All rights reserved.</P>
소선이,마지은,고지윤,김은혜,박현화,서유진,서형은,유은미,이하늬,이혜인,정지연,현혜리,이자형,정덕유,강지숙 이화여자대학교 간호과학대학 2009 이화간호학회지 Vol.- No.43
Purposes :The purposes of this study was to investigate the self-managing status according to the life styles and the diabetic knowledge of early adulthood. The subjects in this study were 240people, the early adult aged twenties to thirties living in the metropolitan area. Data were collected by using self-administered questionnaires that measure about the knowledge of diabetes; the dietetic behavior; the knowledge of diet; the exercise behavior; the knowledge of exercise. Descriptive statistics, t-test, ANOVA, and correlation were used for data analysis. Result :1. At the knowledge of diabetes degree based on the general character, the subjects who had experiences of diabetic education have higher degree of the diabetic knowledge. 2. At the knowledge of diabetes degree according to the life style, the subjects who have regular diet are appeared highly. Also the subjects who don't take much food of animal origin have higher degree. 3. At the knowledge of diet based on the life style, the subjects who don't keep three times meals a day are appeared highly. Also the subjects who have regular diet have higher degree. 4. At the knowledge of exercise according to the life style, the subjects who take extra nutritions 3-4 times a week are appeared highly. Although the subjects tend to know about dietary, exercise and health management, it showed that they actually don't perform what they know in their everyday of life. The reason for this could be the lack of perceived seriousness about diabetes mellitus. Thus as nursing professionals, we should provide them proper health education and support. Moreover, advanced research on the empowerment is warranted.
Design of the RAON Accelerator Systems
전동오,I. S. Hong,H. J. Kim,J. W. Kim,R. M. Bodenstein,차혁진,S. J. Choi,최숙,O. R. Choi,H. Do,B. H. Choi,C. J. Choi,J. Han,W. K. Han,M. O. Hyun,H. Jang,J. D. Joo,M. J. Joung,H. C. Jung,Y. C. Jung,김도균,E. Kim 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.65 No.7
The RAON is the name of the heavy ion accelerator facility under construction in Korea thatincludes the In-flight Fragment (IF) and Isotope Separation On-Line (ISOL) facilities to supportcutting-edge research in various science fields. The superconducting linac is the driver for the IFfacility that can accelerate beams from proton to uranium with 200 MeV/u, 400 kW (for uraniumbeam). A 70-MeV, 1-mA H− cyclotron is the driver for the ISOL facility and is followed by apost-accelerator consisting of s superconducting linac that can accelerate rare-isotope (RI) beamsand deliver them to experimental halls. These facilities provide high-intensity stable ion and rareisotope (RI) beams for domestic and international users. In this paper, design and prototypingefforts for the RAON accelerator systems are presented.
700-nm Zwitterionic Near-Infrared Fluorophores for Dual-Channel Image-Guided Surgery
Hyun, H.,Henary, M.,Gao, T.,Narayana, L.,Owens, E. A.,Lee, J. H.,Park, G.,Wada, H.,Ashitate, Y.,Frangioni, J. V. Elsevier Science B.V., Amsterdam. 2016 Molecular imaging and biology Vol.18 No.1
<P>Purpose: The purpose of this study was to develop a family of 700-nm zwitterionic pentamethine indocyanine near-infrared fluorophores that would permit dual-channel image-guided surgery. Procedures: Three complementary synthetic schemes were used to produce novel zwitterionic chemical structures. Physicochemical, optical, biodistribution, and clearance properties were compared to Cy5.5, a conventional pentamethine indocyanine now used for biomedical imaging. Results: ZW700-1a, ZW700-1b, and ZW700-1c were synthesized, purified, and analyzed extensively in vitro and in vivo. All molecules had extinction coefficients >= 199,000 M-1 cm(-1), emission >= 660 nm, and stability >= 99 % after 24 h in warm serum. In mice, rats, and pigs, >= 80 % of the injected dose was completely eliminated from the body via renal clearance within 4 h. Either alone or conjugated to a tumor targeting ligand, ZW700-1a permitted dual-channel, high SBR, and simultaneous imaging with 800-nm NIR fluorophores using the FLARE (R) imaging system. Conclusions: Novel 700-nm zwitterionic NIR fluorophores enable dual-NIR image-guided surgery.</P>
Hyun, Y.J.,Piao, M.J.,Zhang, R.,Choi, Y.H.,Chae, S.,Hyun, J.W. Academic Press 2012 Ecotoxicology and environmental safety Vol.83 No.-
Exposure of the skin to ultraviolet B (UVB) radiation leads to epidermal damage and the generation of reactive oxygen species (ROS) in skin cells, including keratinocytes. Therefore, the photo-protective effect of 3-bromo-4, 5-dihydroxybenzaldehyde (BDB) against UVB was assessed in human HaCaT keratinocytes exposed to UVB radiation in vitro. BDB restored cell viability, which decreased upon exposure to UVB radiation. BDB exhibited scavenging activity against 1, 1-diphenyl-2-picrylhydrazyl radicals, intracellular ROS induced by hydrogen peroxide (H<SUB>2</SUB>O<SUB>2</SUB>) or UVB radiation, the superoxide anion generated by the xanthine/xanthine oxidase system, and the hydroxyl radical generated by the Fenton reaction (FeSO<SUB>4</SUB>+H<SUB>2</SUB>O<SUB>2</SUB>). Moreover, BDB absorbed UVB and decreased injury resulting from UVB-induced oxidative stress to lipids, proteins and DNA. Finally, BDB reduced UVB-induced apoptosis, as exemplified by fewer apoptotic bodies and a reduction in DNA fragmentation. Taken together, these results suggest that BDB protects human keratinocytes against UVB-induced oxidative stress by scavenging ROS and absorbing UVB rays, thereby reducing injury to cellular components.
Hyun, M.Y.,Hwang, I.H.,Lee, M.M.,Kim, H.,Kim, K.B.,Kim, C.,Kim, H.Y.,Kim, Y.,Kim, S.J. Pergamon Press 2013 Polyhedron Vol.53 No.-
Four three-dimensional Zn<SUP>II</SUP> frameworks containing malonates and various bipyridyl pillars (4,4'-bipyridine (1), 1,2-bis(4-pyridyl)ethane (2), 1,2-bis(4-pyridyl)ethylene (3) and 1,3-bis(4-pyridyl)propane (4)) have been prepared, and their structures were determined by X-ray crystallography. In all four frameworks, malonate ligands bridge three Zn ions to form two-dimensional layers, and these layers are connected by bipyridyl pillars to form three-dimensional frameworks with the general formula [{Zn(H<SUB>2</SUB>O)(μ-malonate)}<SUB>2</SUB>(μ-bipyridyl)] and which also contain water or acetonitrile solvates. Reactivity studies of compounds 1-4 showed that they catalyzed a heterogeneous transesterification reaction of phenyl acetate and could be reused without any significant loss of activity through five runs. Emissions were observed at 347-365nm (λ<SUB>ex</SUB>=313nm) for 2 and 363nm (λ<SUB>ex</SUB>=328nm) for 3, while compounds 1 and 4 showed no luminescence properties. The thermal stabilities of these complexes were also examined.
Parity-violating πNN coupling constant in the chiral quark-soliton model
Lee, H.J.,Hyun, C.H.,Kim, H.C. North-Holland Pub. Co 2012 Physics letters: B Vol.713 No.4
We investigate the parity-violating πNN Yukawa coupling constant h<SUB>πNN</SUB><SUP>1</SUP> within the framework of the SU(2) chiral quark-soliton model, based on the ΔS=0 effective weak Lagrangian derived within the same framework. We find that the parity-violating πNN coupling constant is about 1x10<SUP>-8</SUP> at the scale of 1 GeV. The results of h<SUB>πNN</SUB><SUP>1</SUP> turn out to be sensitive to the Wilson coefficient. We discuss how the gluonic renormalization suppresses the parity-violating πNN coupling constant.
Cha, J. W.,Piao, M. J.,Kim, K. C.,Zheng, J.,Yao, C. W.,Hyun, C. L.,Kang, H. K.,Yoo, E. S.,Koh, Y. S.,Lee, N. H. HUMANA PRESS INC 2014 Applied biochemistry and biotechnology Vol.172 No.5
The aim of the present study was to elucidate the protective properties of 3,4-dihydroxybenzoic acid (DBA) isolated from Cladophora wrightiana Harvey (a green alga) against ultraviolet B (UVB)-induced damage to human HaCaT keratinocytes. DBA exhibited scavenging actions against the 1,1-diphenyl-2-picrylhydrazyl radical, the superoxide anion, and the hydroxyl radical. Furthermore, DBA decreased the levels of intracellular reactive oxygen species generated by hydrogen peroxide or UVB treatment of the cells. DBA also decreased the UVB-augmented levels of phospho-histone H2A.X and the extent of comet tail formation, which are both indications of DNA damage. In addition, the compound safeguarded keratinocytes from UVB-induced injury by reversing the production of apoptotic bodies, overturning the disruption of mitochondrial membrane potential, increasing the expression of the anti-apoptotic protein, B-cell lymphoma 2, and decreasing the expression of the pro-apoptotic proteins, Bcl-2-associated X and cleaved caspase-3. Taken together, these results demonstrate that DBA isolated from a green alga protects human keratinocytes against UVB-induced oxidative stress and apoptosis.