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journal of Energy Chemistry 2025年第1期100卷 245-258页

作者： Gaeun Lee Yong Nam Ahn Seongjoon So Chanwoo park jong-Seong Bae taehyun park Il tae kim jaehyun hur School of Chemical Biological and Battery Engineering Gachon University Seongnam Busan Center Korea Basic Science Institute

Aqueous Zn-ion batteries （AZIBs） have received considerable attention owing to their various advantages such as safety,low cost,simple battery assembly conditions,and high ionic ***,they still suffer from serious problems,including uncontrollable dendrite growth,corrosion,hydrogen evolution reaction （hER） from water decomposition,electrode passivation,and unexpected *** creation of a uniform artificial nanocrystal layer on the Zn anode surface is a promising strategy for resolving these ***,we propose the use of a perovskite CatiO3（CtO） protective layer on Zn（CtO@Zn） as a promising approach for improving the performance of *** CtO artificial layer provides an efficient pathway for Zn ion diffusion towards the Zn metal because of the high dielectric constant （εr=180） and ferroelectric characteristics that enable the alignment of dipole moments and redistribute the Zn2+ions in the CtO *** avoiding the direct contact of the Zn anode with the electrolyte solution,the uneven dendrite growth,corrosion,parasitic side reactions,and hER are mitigated,while CtO retains its mechanical and chemical robustness during ***,CtO@Zn demonstrates an improved lifespan in a symmetric cell configuration compared with bare ***@Zn shows steady overpotential （～68 m v） for 1500 h at 1 mA cm-2/0.5 mA h cm-2,excelling bare ***,when paired with the v2O5-C cathode,the CtO@Zn//v2O5-C full battery delivers 148.4 mA h g-1（based on the mass of the cathode） after 300 *** study provides new insights into Zn metal anodes and the development of high-performance AZIBs.

关键词： Perovskite

Power management unit chip design for automobile active-matrix organic light-emitting diode display module

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journal of Central South University 2009年第4期16卷 621-628页

作者： kim j h.park j h.kim j h.cao t v LEE t Y BAN h j YANG K kim h G hA P B kim Y h Department of Electronic Engineering Changwon National University 9 Sarim-Dong Changwon 641-773 Korea Denso PS Electronics Corporation 47 Seongsan-Dong Changwon 641-315 Korea

A power management unit （PMU） chip supplying dual panel supply voltage, which has a low electro-magnetic interference （EMI） characteristic and is favorable for miniaturization, is designed. A two-phase charge pump circuit using external pumping capacitor increases its pumping current and works out the charge-loss problem by using bulk-potential biasing circuit. A low-power start-up circuit is also proposed to reduce the power consumption of the band-gap reference voltage generator. And the ring oscillator used in the ELvSS power circuit is designed with logic devices by supplying the logic power supply to reduce the layout area. the PMU chip is designed with MagnaChip＇s 0.25 μ high-voltage process. the driving currents of ELvDD and ELvSS are more than 50 mA when a SPICE simulation is done.

关键词： DC-DC converter AMOLED charge pumping power management unit (PMU) dual panel supply voltage

Gamma-ray and neutron shielding efficiency of Pb-free gadolinium-based glasses

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Nuclear Science and techniques 2016年第4期27卷 206-213页

作者： v.P.Singh N.M.Badiger S.Kothan S.Kaewjaeng t.Korkut h.j.kim j.Kaewkhao Department of Physics Karnatak University Department of Radiologic technology Faculty of Associated Medical SciencesChiang Mai University Department of Nuclear Energy Engineering Faculty of Engineering Sinop University Department of Physics Kyungpook National University Center of Excellence in Glass technology and Materials Science Nakhon Pathom Rajabhat University

the radiation shielding efficiency of material depends upon photon attenuation, exposure buildup factors and neutron removal capacity. A newly developed Pb-free gadolinium-based glasses in compositions(80-x) B_2O_3-10 Si O_2-10 Ca O-x Gd_2O_3(where x = 15, 20, 25, 30 and35 mol%) had completely been investigated for their shielding efficiency with Geant4 simulation for mass attenuation coefficients and neutron total macroscopic cross section and by calculating exposure buildup *** exposure buildup factors for photon energy from 0.015 to 15 Me v had been calculated up to 40 mean free paths using five factors geometric progression method. the mass attenuation coefficients of the Pb-free glasses were simulated for energies from 223 to 2614 ke v and compared with the possible available experimental results. the neutron shielding efficiency of these glasses was discussed by calculating neutron total macroscopic cross section for energies from 1 e v to 14.1 Me v. Present investigations are found to be very useful for applications in nuclear engineering.

关键词：无铅玻璃屏蔽效率中子质量衰减系数 γ射线光子能量截面计算 Geant4

Present Status of the KStAR Superconducting Magnet System Development

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Plasma Science and technology 2004年第5期6卷 2445-2450页

作者： Keeman kim h.K.park K.R.park B.S.Lim S.I.Lee M.K.kim Y.Chu W.h.Chung S.h.Baek j.Y.Cho h.Yonekawa A.Chertovskikh Y.B.Chang j.S.kim C.S.kim D.j.kim N.h.Song K.P.kim Y.j.Song I.S.Woo W.S.han D.K.Lee Y.K.Oh K.W.Cho j.S.park G.S.Lee h.j.Lee t.K.Ko S.j.Lee National NationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalNationalKorea Atomic Energy Research InstituteDaejeonRepublic of KoreaYonsei UniversitySeoulRepublic of KoreaYonsei UniversitySeoulRepublic of Korea Fusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science InstituteDaejeonRepublic of KoreaFusion R&D CenterKorea Basic Science

the mission of Korea Superconducting tokamak Advanced Research (KStAR)project is to develop an advanced steady-state superconducting tokamak for establishing a scientificand technological basis for an attractive fusion reactor. Because one of the KStAR mission is toachieve a steady-state operation, the use of superconducting coils is an obvious choice for themagnet system. the KStAR superconducting magnet system consists of 16 toroidal Field (tF) coils and14 Poloidal Field (PF) coils. Internally-cooled Cable-In-Conduit Conductors (CICC) are put into usein both the tF and PF coil systems. the tF coil system provides a field of 3.5 t at the plasmacenter and the PF coil system is able to provide a flux swing of 17 v-sec. the major achievement inKStAR magnet-system development includes the development of CICC, the development of a full-size tFmodel coil, the development of a coil system for background magnetic-field generation , theconstruction of a large-scale superconducting magnet and CICC test facility. tF and PF coils are inthe stage of fabrication to pave the way for the scheduled completion of KStAR by the end of 2006.

关键词： superconducting magnet KStAR CICC

A Proposed Core Catcher System and thermite Experimental Results

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journal of Energy and Power Engineering 2011年第11期5卷 1005-1014页

作者： h.Y. kim j.h. kim K.S. ha j.h. Song j.h. park thermal hydraulics Safety Research Division Korea Atomic Energy Research Institute Daejeon 305-353 Korea

to prevent direct contact of the melt and basemat concrete of the cavity in a postulated core melt accident, a core catcher concept is suggested. Upon ablation of the sacrificial layer on top of the core catcher while molten core material is discharged, a mixture of water and gas is injected from below. It is expected that a simultaneous injection of water and gas could prevent a possible steam explosion/spike and also suppress the rapid release of steam which might result in fast over-pressurization of the containment. A test facility for the core catcher using a thermite reaction technique for the generation of the melt was designed and constructed at Korea Atomic Energy Research Institute （KAERI）. the first series of tests were performed by using a mixture of Al, Fe2O3, and cao as a stimulant. As a first try, only water was injected from the bottom of the melt through five water injection nozzles when the melt front reached the water injection nozzles. A description of the test facility for the core catcher, the thermite composition, and the methods of experiment is included. the test results are discussed.

关键词： Core catcher corium cooling sacrificial layer water injection severe accidient thermite reaction.

Axial strain enhances osteotomy repair with a concomitant increase in connexin43 expression

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Bone Research 2015年第2期3卷 83-91页

作者： Rishi R Gupta hyunchul kim Yu-Kwan Chan Carla hebert Leah Gitajn David j Yoo Robert v O’toole Adam h hsieh joseph P Stains Department of Orthopaedics University of Maryland Fischell Department of Bioengineering University of MarylandCollege Park

the mechanical environment is known to influence fracture healing. We speculated that connexin43 （Cx43） gap junctions, which impact skeletal homeostasis, fracture healing and the osteogenic response to mechanical load, may play a role in mediating the response of the healing bone to mechanical strain. here, we used an established rat fracture model, which uses a 2 mm osteotomy gap stabilized by an external fixator, to examine the impact of various cyclical axial loading protocols （2%, 10%, and 30% strain） on osteotomy healing. We examined the presence of Cx43 in the osteotomy-healing environment and assessed how mechanical strain modulates Cx43 expression patterns in the callus. We demonstrated that increased cyclical axial strain results in increased radiographic and histologic bone formation. In addition, we show by immunohistochemistry that Cx43 is abundantly expressed in the healing callus, with the expression most robust in samples exposed to increased cyclical axial strain. these data are consistent with the concept that an increase in Cx43 expression by mechanical load may be part of the mechanisms by which mechanical forces enhances fracture healing.

关键词： connexin healing repair concomitant callus homeostasis assessed skeletal exposed stained

有乳腺癌病史的韩国女性阴性MRI筛查结果：对下一次MRI检查间隔期的影响

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国际医学放射学杂志 2021年第5期 601-602页

作者： v.Y.park M.j.kim G.R.kim j.h.Yoon 张俊杰

摘要目前关于有乳腺癌病史(PhBC)的女性进行乳腺MRI筛查后的结果数据有限。目的研究PhBC女性阴性MRI筛查结果与后续癌症相关的结果和因素。材料与方法

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Performance evaluation and calibration of capacitance sensor for estimating the salinity of reclaimed land

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International journal of Agricultural and Biological Engineering 2020年第1期13卷 206-210页

作者： Donggeun kim Younghwan Son jaesung park taejin kim jihun jeon Department of Rural Systems Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Rural Systems Engineering and Research Institute for Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Department of Bioresource Engineering McGill UniversitySte-Anne-de-Bellevue QC H9X 3V9Canada

Generally,soil moisture and salinity in reclaimed land are monitored using soil dielectric sensors such as time domain reflectometry,frequency domain reflectometry,and *** soil dielectric sensor measures apparent dielectric ***,apparent dielectric permittivity is affected by soil moisture,salinity,and *** this study,performance evaluation and calibration of a dielectric sensor(5tE;MEtER Group,Inc.,Pullman,WA,USA)for monitoring soil salinity were *** calibration tests were completed,incorporating various levels of dry density,water content,and *** soil salinity was determined by the electrical conductivity(EC)1:5 *** volumetric water content as measured by the sensor was affected by dry density and water ***,it linearly increased as dry density and water content ***,when dry density or water content was high,the measured value of the sensor increased *** bulk EC measured by sensor had no specific correlation with EC 1:*** EC 1:5 measurement had a linear relationship with the gradient ofθandθ***,it can be estimated with a simple linear equation usingθfrom the soil test andθs from the capacitance *** R 2 value of the EC 1:5 estimation equation was *** proposed equation requiresθfrom the gravimetric sample andθs from the ***,in the case of monitoring salinity using a sensor,it is recommended to measure the water content with a tensiometer.

关键词： salinity capacitance sensor volumetric water content reclaimed land soil saline soil

Search for electron-antineutrinos associated with gravitational-wave events GW150914,GW151012,GW151226,GW170104,GW170608,GW170814,and GW170817 at Daya Bay

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Chinese Physics C 2021年第5期45卷 190-201页

作者： F.P.An A.B.Balantekin h.R.Band M.Bishai S.Blyth G.F.cao j.cao j.F.Chang Y.Chang h.S.Chen S.M.Chen Y.Chen Y.X.Chen j.Cheng Z.K.Cheng j.j.Cherwinka M.C.Chu j.P.Cummings O.Dalager F.S.Deng Y.Y.Ding M.v.Diwan t.Dohnal j.Dove M.Dvorak D.A.Dwyer j.P.Gallo M.Gonchar G.h.Gong h.Gong W.Q.Gu j.Y.Guo L.Guo X.h.Guo Y.h.Guo Z.Guo R.W.hackenburg S.hans M.he K.M.heeger Y.K.heng A.higuera Y.K.hor Y.B.hsiung B.Z.hu j.R.hu t.hu Z.j.hu h.X.huang X.t.huang Y.B.huang P.huber D.E.jaffe K.L.jen X.L.ji X.P.ji R.A.johnson D.jones L.Kang S.h.Kettell S.Kohn M.Kramer t.j.Langford j.Lee j.h.C.Lee R.t.Lei R.Leitner j.K.C.Leung F.Li j.j.Li Q.j.Li S.Li S.C.Li W.D.Li X.N.Li X.Q.Li Y.F.Li Z.B.Li h.Liang C.j.Lin G.L.Lin S.Lin j.j.Ling j.M.Link L.Littenberg B.R.Littlejohn j.C.Liu j.L.Liu C.Lu h.Q.Lu j.S.Lu K.B.Luk X.B.Ma X.Y.Ma Y.Q.Ma C.Marshall D.A.Martinez Caicedo K.t.MeDonald R.D.McKeown Y.Meng j.Napolitano D.Naumov E.Naumova j.P.Ochoa-Ricoux A.OIshevskiy h.-R.Pan j.park S.Patton j.C.Peng C.S.j.Pun F.Z.Qi M.Qi X.Qian N.Raper j.Ren C.Morales Reveco R.Rosero B.Roskovec X.C.Ruan h.Steiner j.L.Sun t.tmej K.treskov W.-h.tse C.E.tull B.viren v.vorobel C.h.Wang j.Wang M.Wang N.Y.Wang R.G.Wang W.Wang W.Wang X.Wang Y.Wang Y.F.Wang Z.Wang Z.Wang Z.M.Wang h.Y.Wei L.h.Wei L.j.Wen K.Whisnant C.G.White h.L.h.Wong E.Worcester D.R.Wu F.L.Wu Q.Wu W.j.Wu D.M.Xia Z.Q.Xie Z.Z.Xing j.L.Xu t.Xu t.Xue C.G.Yang L.Yang Y.Z.Yang h.F.Yao M.Ye M.Yeh B.L.Young h.Z.Yu Z.Y.Yu B.B.Yue S.Zeng Y.Zeng L.Zhan C.Zhang F.Y.Zhang h.h.Zhang j.W.Zhang Q.M.Zhang X.t.Zhang Y.M.Zhang Y.X.Zhang Y.Y.Zhang Z.j.Zhang Z.P.Zhang Z.Y.Zhang j.Zhao L.Zhou h.L.Zhuang j.h.Zou Instiute of Modern Physics East China University of Science and TechnologyShanghai 200237 University of Wisconsin MadisonWisconsin 53706 Wright Laboratory and Department of Physics Yale UniversityNew HavenConnecticut 06520 Brookhaven National Laboratory UptonNew York 11973 Department of Physics National Taiwan UniversityTaipei Institute of high Energy Physics Beijing 100049 National United University Miao-Li Department of Engineering Physics Tsinghua UniversityBejing 100084 Shenzhen University Shenzhen 518060 Sun Yat-Sen(Zhongshan)University Guangzhou North China Electric Power University Bejjing 102206 Chinese University of hong Kong Hong Kong 999077 Siena College LoudonvilleNew York 12211 Department of Physics and Astronomy University of CaliforniaIrvineCaliformia 92697 University of Science and technology of China Hefei 230026 Charles University Faculty of Mathematics and PhysicsPrague Department of Physics University of llinois at Urbana-ChampaignUrbanaIlinois 61801 Lawrence Berkeley National Laboratory BerkeleyCalifornia 94720 Department of Physics Illinois Institute of TechnologyChicagoIllinois 60616 joint Institute for Nuclear Research DubnaMoscow Region Beijing Normal University Beijing 100875 Department of Nuclear Science and technology School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049 Department of Physics University of HoustonHoustonTexas 77204 China Institute of Atomic Energy Beijing 102413 Shandong University Jinan 250100 Guangxi University Nanning 530004 Center for Neutrino Physics Virginia TechBlacksburgVirginia 24061 Institute of Physics National Chiao-Tung UniversityHsinchu Department of Physics University of CincinnatiCincinnatiOhio 45221 Department of Physies Collge of Science and TechnologyTemple UniversityPhiladelphiaPennsylvania 19122 Dongguan University of technology Dongguan 523808 Department of Physics University of CaliforniaBerkeleyCalifornia 94720 Department of Physics The University of Hong KongPokfulamHong Kong 999077 School

the establishment of a possible connection between neutrino emission and gravitational-wave(GW)bursts is important to our understanding of the physical processes that occur when black holes or neutron stars *** the Daya Bay experiment,using the data collected from December 2011 to August 2017,a search was per-formed for electron-antineutrino signals that coincided with detected GW events,including GW150914,GW151012,GW151226,GW170104,GW170608,GW 170814,and GW *** used three time windows of±10,±500,and±1000 s relative to the occurrence of the GW events and a neutrino energy range of 1.8 to 100 Mev to search for correlated neutrino *** detected electron-antineutrino candidates were consistent with the expected background rates for all the three time *** monochromatic spectra,we found upper limits(90%confidence level)of the electron-antineutrino fluence of(1.13-2.44)×10^(11)cm^(-2)at 5 Mev to 8.0×10^(7)cm^(-2)at 100 Mev for the three time w *** the assumption of a Fermi-Dirac spectrum,the upper limits were found to be(5.4-7.0)×10^(9)cm^(2)for the three time windows.

关键词： grav itational waves electron-antineutrinos fluence upper limit

Rechargeable Na-MnO_(2) battery with modified cell chemistry

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journal of Energy Chemistry 2023年第9期84卷 414-423页

作者： Sirugaloor thangavel Senthilkumar Rebeca Marcilla Youngsik kim jesus Palma Mani Ulaganathan jeong-Sun park School of Energy&Chemical Engineering Ulsan National Institute of Science and Technology(UNIST)Ulsan 689-798Republic of Korea Electrochemical Processes Unit IMDEA Energy InstituteAvda.Ramón de La Sagra 328935MóstolesSpain Center for Advanced Materials Research Research Institute of Science and TechnologyUniversity of SharjahP.O.Box 27272SharjahUnited Arab Emirates Energy Materials and Devices Lab 4TOONE CorporationUNIST-gil 50Ulsan 689-798Republic of Korea Department of Sciences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatore 641112India

high voltage,high energy density,nominal cycle life,and low cost are the most critical requirements of rechargeable batteries for their widespread energy storage applications in electric vehicles and renewable energy ***-MnO_(2) battery could be a low-cost contender,but it suffers extensively from its low cell voltage and poor *** this study,we modified the conventional cell structure of Na-MnO_(2) battery and established altered cell chemistry through a hybrid electrochemical process consisting of Na striping/plating at the anode and Zn^(2+) insertion/de-insertion along with MnO_(2) dissolution/deposition at the *** the modification,Na-MnO_(2) battery exhibits a discharge capacity of 267.10 mA h/g and a cell voltage of 3.30 v(***/Na^(+)),resulting in a high specific energy density of 881.43 Wh/*** 300 cycles,the battery retains 98% of its first-cycle discharge capacity with100% coulombic ***,Na metal-free battery assembled using sodium biphenyl as a safer anode also delivers an excellent energy density of 810.0 Wh/*** work could provide a feasible method to develop an advanced Na-MnO_(2) battery for real-time energy storage applications.

关键词： hybrid battery Sodium metal Sodium biphenyl high cell voltage Manganese dioxide battery Modified cell chemistry