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Journal of Modern Power Systems and Clean Energy 2018年第3期6卷 509-520页

作者： chul-ho noh chul-Hwan KIM Gi-Hyeon GWON Yun-Sik OH College of Information and Communication Engineering Sungkyunkwan University

The increasing importance of energy efficiency has led to several studies related to the construction of a reliable low voltage DC(LVDC) distribution ***, studies on a protection scheme that considers the fault characteristics of an LVDC distribution system are essential to improve system reliability. When compared to a conventional distribution system, the most distinct feature of an LVDC distribution system is the existence of a capacitive discharge current from converters under a fault condition that results in the prompt operation of protection devices. Therefore, this study involves proposing a precise and rapid technique to identify the fault section in an LVDC distribution system. The technique involves two stages, namely: an analysis stage to analyze the capacitive discharge current and a decision stage to identify the fault section based on the fault type. A detailed discussion of each step is presented and its feasibility is verified based on the results of simulations with an ElectroMagnetic Transients Program and MATLAB~?.

关键词： Capacitive discharge current Fault section identification Fault type identification Low voltage DC distribution system

Perovskite synthesizability using graph neural networks

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npj Computational Materials 2022年第1期8卷 697-704页

作者： Geun ho Gu Jidon Jang Juhwan noh Aron Walsh Yousung Jung Department of Chemical and Biomolecular Engineering(BK21 four) KAIST291 Daehak-ro 34141Daejeon305-335South Korea School of Energy Technology Korea Institute of Energy Technology200 Hyuksin-roNaju58330South Korea Department of Materials Imperial College LondonLondonSW72AZUK Department of Materials Science and Engineering Yonsei UniversitySeoul03722South Korea

Perovskite is an important material type in geophysics and for technologically important ***,the number of synthetic perovskites remains relatively *** accelerate the high-throughput discovery of perovskites,we propose a graph neural network model to assess their *** trained model shows a promising 0.957 out-of-sample true positive rate,significantly improving over empirical rule-based *** validation is established by demonstrating that a significant portion of the virtual crystals that are predicted to be synthesizable have already been indeed synthesized in literature,and those with the lowest synthesizability scores have not been *** previous empirical strategies are mainly applicable to metal oxides,our model is general and capable of predicting the synthesizability across all classes of perovskites,including chalcogenide,halide,and hydride perovskites,as well as *** apply the method to identify synthesizable perovskite candidates for two potential applications,the Li-rich ion conductors and metal halide optical materials that can be tested experimentally.

关键词： methods. perovskite halide

Acute liver injury induces expression of FGF23 in hepatocytes via orphan nuclear receptor ERRγ signaling

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Genes & Diseases 2023年第3期10卷 679-682页

作者： Yoon Seok Jung Yong-hoon Kim Kamalakannan Radhakrishnan Jung-Ran noh Jung Hyeon Choi Hyo-Jin Kim Jae-ho Jeong Steven Dooley chul-ho Lee Hueng-Sik Choi School of Biological Sciences and Technology Chonnam National UniversityGwangju 61186Republic of Korea Laboratory Animal Resource Center Korea Research Institute of Bioscience and Biotechnology125 Gwahak-roYuseong-guDaejeon 34141Republic of Korea Department of Functional Genomics KRIBB School of BioscienceKorea University of Science and Technology(UST)Daejeon 34113Republic of Korea Combinatorial Tumor Immunotherapy MRC Chonnam National University Medical SchoolHwasun-gunJeonnam 58128Republic of Korea Department of Microbiology Chonnam National University Medical SchoolGwangju 61186Republic of Korea Molecular Hepatology Section Medical Faculty MannheimHeidelberg University69117 HeidelbergGermany

Fibroblast growth factor 23(FGF23)is an osteocyte-and osteoblast-derived hormone that primarily regulates phosphate and vitamin D *** FGF23 levels are abnormally increased in pathological conditions like acute or chronic kidney injury,resulting in disease progression as well as increased rates of morbidity and mortality.^(1) however,FGF23 production in acute liver injury is not fully *** this study.

关键词： FGF23 acute vitamin

PREPARATION AND PROPERTIES OF MMA/1-PROPYLMETHACRYLATE-POSS COPOLYMER WITH ATOM TRANSFER RADICAL POLYMERIZATION

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Chinese Journal of Polymer Science 2008年第5期26卷 533-537页

作者： He-xin Zhang ho-young Lee Young-jun Shin Dong-ho Lee Seok Kyun noh Department of Polymer Science and Engineering Kyungpook National UniversityDaegu 702-701Korea School of Display and Chemical Engineering Yeungnam UniversityGyeongsan 712-749Korea

The methyl methacrylate(MMA)/1-propylmethacrylate-polyhedral oligomeric silsesquioxane(PM-POSS) copolymers were synthesized via atom transfer radical polymerization with CuBr as *** unreacted PM-POSS monomer could be removed completely by washing the copolymerization product with *** copolymers were characterized with ~1H-NMR,X-ray diffraction,differential scanning calorimetry,thermogravimetric analysis and gel permeation *** increasing PM-POSS feed ratio,the total conversi...

关键词： Methyl methacrylate(MMA) Polyhedral oligomeric silsesquioxane(POSS) Copolymer ATRP

Recent trends in metal ion based hydrogel biomaterials for tissue engineering and other biomedical applications

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Journal of Materials Science & Technology 2021年第4期63卷 35-53页

作者： Gopinathan Janarthanan Insup noh Department of Chemical and Biomolecular Engineering Seoul National University of Science and TechnologySeoul01811Republic of Korea Convergence Institute of Biomedical Engineering and Biomaterials Seoul National University of Science and TechnologySeoul01811Republic of Korea

Recently,the metal ion cross-linked hydrogels have gained enormous interest because of its excellent properties like self-healing,fast recovery,biocompatibility and high mechanical properties combined with multi-stimuli *** this review article,we have summarized the recent trends in the development of metal ion cross-linked hydrogels for tissue engineering and biomedical applications.A number of metal ions and their contribution in the synthesis of various cross-linked hydrogels are discussed with respect to their crosslinking mechanisms,compositions,physio-chemical and biological properties.A special emphasis has been given to ferric(Fe^(3+))ion cross-linked hydrogels and their different combinations owing to their numerous researches reported in the recent past with exceptional *** application of these metal ion based hydrogels in biomedical applications including tissue engineering,sensing,wound healing,drug delivery and as tissue adhesive and tissue sealants are reviewed with specific ***,the application of these metal ion cross-linked hydrogels as inks in 3 D printing is explained in a separate ***,the possible toxic effects of the different metal ions and their effects have been *** directions and comprehensive applications of the hydrogels are highlighted.

关键词： properties. biomaterials exceptional

POLYMERIZATION OF ISOBUTYL VINYL ETHER CATALYSED BY DINUCLEAR HALF-TITANOCENES

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Chinese Journal of Polymer Science 2008年第5期26卷 611-620页

作者： Nguyen Thi Le Thanh Seok Kyun noh Won Seok Lyoo Dong-ho Lee School of Display and Chemical Engineering Yeungnam University214-1 DaedongGyeongsanGyeongbuk 712-749Korea School of Textiles Yeungnam University214-1 DaedongGyeongsanGyeongbuk 712-749Korea Department of Polymer Science Engineering CollegeKyungpook National UniversityDaegu 702-701Korea

Polymerization of isobutyl vinyl ether(IBVE)has been studied with mononuclear half-titanocene,CpTiCl_3[1]and dinuclear half-titanocenes,[(C_5H_4)_2(CH_2)_n][(TiCl_3)_2][2(n=3),3(n=6)],and[(C_5H_4)_2(CH_2)_n[(TiCl_2OR_2](R=2,6- diisopropylphenoxyl)[4(n=3),5(n=6)],in the presence of methyl aluminoxanes(MAO)as cocatalyst in methylene *** influences of the length of polymethylene brigde and the substitution of aryloxy group at the metal center have been investigated at three polymerization temperature(...

关键词： Dinuclear half-titanocene Poly(isobutyl vinyl ether) Vinyl ether polymerization by metallocene Stereoregularity control by metallocene.

URECA:Efficient Resource Location Middleware for Ubiquitous Environment

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Journal of Computer Science & Technology 2008年第6期23卷 929-943页

作者： Donggeon noh Heonshik Shin Mobile System and Software Laboratory School of Computer Science and EngineeringSeoul National University

We describe an effective resource location framework for ubiquitous computing environments populated by a diverse set of networks, devices, services and computational entities. Our framework provides context adaptation with the aid of a middleware service to improve the quality of resource location. A resource location protocol suitable to each type of network locates resource effectively by means of dynamic reconfiguration to the current context. Our framework is also refined by support for interoperability between different types of resource location protocols occurring across a hybrid ubiquitous network. These characteristics also reduce the control overhead for resource location, saving resource, decreasing latency and permitting a considerable degree of scalability.

关键词： resource location resource discovery middleware context-aware interoperability ubiquitous

UV Photolysis of N2O Isotopomers： Isotopic Fractionations and Product Rotational Quantum State Distributions

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Chinese Journal of Chemical Physics 2011年第6期24卷 679-685,I0003页

作者： Mohammad noh Daud 吉隆坡马来亚大学化学系吉隆坡50603

The time-dependent quantum wave packet method is used to study the dynamics of the pho- todissociation processes for the isotopomers 14N14N16O, 14N15N16O, 15N14N16O, 15N15N16O, 14N14N17O, and 14N14N18O. In general, the computed isotopic fractionation factors derived from the absorption cross sections of five heavy isotopomers are in good agreement with the experimental results. Relative to the 14NI4N16O isotopomer, the N2 rotational state distributions for the isotopically nitrogen substituted N2O are found to be entirely shifted to higher rotational states. Similar to its isotopic fractionation factors, the N2 rotational state distributions for the asymmetric isotopomers 14N15N16O and 15N14N16O are found to be observably different.

关键词： Time-dependent wavepacket Isotopic fractionation Product rotational distribution

Rare earth double activated phosphors for different applications

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Journal of Rare Earths 2010年第S1期28卷 1-11页

作者： Mihail Nazarov Do Young noh Department of Materials Science and Engineering Gwangju Institute of Science and Technology1 Oryong-dongBuk-guGwangju 500-712Republic of Korea

For the purpose of development of highly energy-efficient light sources,one needs to design highly efficient green,red and yellow phosphors,which are able to absorb excitation energy and generate *** this contribution,we present our results on producing some efficient phosphors with improved luminescence *** double activation,energy could be transferred from one luminescent activator to the other one,resulting in more efficient or brighter device ***-activators could be added to a host material to change the color of the emitted *** incorporation of Eu3+ or Tb3+ ions into the CaWO4 crystal lattice modified the luminescence spectrum due to the formation of the emission centers that generated the specific red and green *** efficient new red phosphors based on YNbO4 and doped by Eu3+,Ga3+,Al3+ allowed recommending these materials as good candidates for different applications including LED and X-ray intensifying *** double activated TAG with Ce3+ and Eu3+ and for different mole ratios of Ce/Eu,the color temperature changed from 5500 K(0.331,0.322) up to 4200 K(0.370,0.381) and the light became 'warmer'.Application of TAG:Ce,Eu in the light emitting device showed better chromaticity coordinates of luminescence and color rendering index of LEDs.

关键词： optical materials phosphors luminescence rare earths

Efficacy of uncovered self-expandable metallic stent for colorectal obstruction by extracolonic malignancy

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World Journal of Gastrointestinal Oncology 2020年第9期12卷 1005-1013页

作者： Joon Seong Ahn Sung noh hong Dong Kyung Chang Young-ho Kim Eun-Ran Kim Department of Internal Medicine Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351South Korea

BACKGROUND Self-expandable metallic stent(SEMS)is widely used for malignant colorectal ***,SEMS has been used for palliative option for colorectal obstruction caused by extracolonic malignancy(ECM).AIM To evaluate the efficacy of SEMS for colorectal obstruction caused by ECM,and to identify the factors associated with stent *** Seventy-two patients who were treated with uncovered SEMS insertion for malignant colorectal obstructions caused by colorectal metastasis or peritoneal seeding of ECM at Samsung Medical Center between April 2012 to March 2016 were *** analyzed technical and clinical outcomes of stent insertion,the factors associated with stent occlusion and long term outcomes after stent *** Technical success rate was determined as 90.3%with a clinical success rate of 87.7%.Stent occlusion developed in 28.1%,with a median duration of 51 ***,81.3%with stent occlusion could be treated with secondary stent *** failure was observed to be related to the male sex(P=0.020)and right colon obstruction(P=0.017).Stent length≤10 cm was found to be associated with stent occlusion(P=0.003).Median survival time after stent insertion was 4.7 mo and 40.4%were able to receive their oncological treatments after stent insertion without *** Uncovered SEMS is effective for the treatment of colorectal obstruction caused by ECM,considering life expectancy of patients with ECM.

关键词： Self-expandable metallic stent Colorectal stent Colorectal obstruction Extracolonic malignancy Retrospective study