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Present Status of the kStAR Superconducting Magnet System Development

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

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Numerical analysis of thermal plasma scrubber for CF4 decomposition

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Plasma Science and technology 2019年第6期21卷 9-14页

作者： J ko t H kIM S CHOI Department of Nuclear and Energy Engineering Jeju National University Jeju 63243 Republic of Korea Institute for Nuclear Science and technology Jeju National University Jeju 63243 Republic of Korea

CF4 gas emitted in the semiconductor and display manufacturing process is a very harmful greenhouse *** must be removed or converted safely due to its extreme *** a CF4 decomposition system using a thermal plasma scrubber was commercialized,its removal efficiency is *** this work,a numerical analysis of CF4 decomposition in the thermal plasma scrubber was carried out in order to propose an efficient decomposition *** decomposition and recombination temperatures of CF4 were analyzed using thermodynamic equilibrium *** chemical reaction of CF4 decomposition into carbon and fluorine gas was considered in this numerical *** injection position and angle of the CF4 were controlled in order to enhance the decomposition *** vertical injection of CF4 near the torch exit improved the mixing of the CF4 with the thermal plasma *** addition,it was confirmed that the high temperature region expanded due to a vortex generated by strong turbulence in the bottleneck-shaped *** a result,it is revealed that the CF4 injection location and the reactor configuration are the most important factors in improving the decomposition rate.

关键词： numerical simulation decomposition CF4 thermal plasma scrubber

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Characterization of mixing in an optimized designed t–t mixer with cylindrical elements

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Chinese Journal of Chemical Engineering 2019年第10期27卷 2337-2351页

作者： t.Manoj Dundi V.R.k.Raju V.P.Chandramohan Mechanical Engineering Department National Institute of TechnologyWarangalTelangana StateIndia

Passive micromixers are preferred over active mixers for many microfluidic applications due to their relative ease in integration into complex systems and operational *** also incur very low cost of ***,the degree of mixing is comparatively low in passive mixers than active mixers due to the absence of disturbance in the flow by external forces and the inherent laminar nature of microchannel *** designs of complex channel structures and three-dimensional geometries have been investigated in the past to obtain an efficient mixing in passive *** the studies on mixing enhancement with simple planar geometries of passive mixers have been few and *** present work aims to investigate the possibility of mixing enhancement by employing simple planar type designs,such as t-mixer and t–t mixer with cylindrical elements placed in the mixing *** mixing performance has been evaluated in the Reynolds number range of 6 *** results have shown that t–t mixer with cylindrical elements performed significantly well and obtained very good mixing quality over basic t-mixer for the entire range of Reynolds number(6 to 700).the device has also shown better mixing as compared to basic t–t mixer and t-mixer with cylindrical elements.A larger pair of vortices formed in the stagnation area due to the presence of a cylindrical element in the *** elements downstream caused significant enhancement in mixing due to splitting and recombining *** size of the cylindrical element in the t–t mixer has been optimized to obtain better mixing performance of the *** improvement in mixing quality by t–t mixer with cylindrical elements has been obtained at the expense of small rise in pressure drop as compared to other passive designs considered in this ***,the current design of t–t mixer with cylindrical elements can act as an effective and simple passive mixing device for various mi

关键词： CFD-simulation Cylindrical elements Micromixers Mixing quality Obstructions t–t-mixer

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Neurovascular ageing:transcriptomic readout and implications on therapeutic targeting in Alzheimer’s disease

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Neural Regeneration Research 2021年第12期16卷 2411-2412页

作者： Zhongqi Li Bonaventure Ip Vincent C.t.Mok Ho ko Division of Neurology Department of Medicine and TherapeuticsThe Chinese University of Hong KongHong Kong Special Administrative RegionChina Li ka Shing Institute of Health Sciences The Chinese University of Hong KongHong Kong Special Administrative RegionChina(Li ZKo H)Margaret K.L.Cheung Research Centre for Management of ParkinsonismThe Chinese University of Hong KongHong Kong Special Administrative RegionChina Chow Yuk Ho technology Centre for Innovative Medicine The Chinese University of Hong KongHong Kong Special Administrative RegionChina Gerald Choa Neuroscience Centre School of Biomedical SciencesDepartment of PsychiatryPeter Hung Pain Research InstituteFaculty of MedicineThe Chinese University of Hong KongHong Kong Special Administrative RegionChina

Ageing is one of the greatest risk factors for neurodegenerative *** the complex biological changes in ageing increase the brain’s susceptibility to neurodegeneration remains incompletely *** into neurodegenerative disorders has shifted from a neuron-centric approach,to the contributing roles of age-related neurovascular and glial cell dysfunction.

关键词： incomplete susceptibility ageing

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Petrogenesis of the ükapili Granitoid and its Mafic Enclaves in Elmal Area (Nigde, Central Anatolia, turkey)

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Acta Geologica Sinica(English Edition) 2013年第3期87卷 738-748页

作者： Hüseyin kURt kerim koAk kürsad ASAN Mustafa kARAkAS Department of Geological Engineering Seluk University Central Anatolia Directorate of Mineral Research and Exploration

the Late Cretaceous Uckapth Granitoid including mafic microgranular enclaves intruded into metapelitic and metabasic rocks, and overlain unconformably by Neogene ignimbrites in the Ni^de area of turkey. It is mostly granite and minor granodiorite in composition, whereas its enclaves are dominantly gabbro with a few diorites in composition. the Uckapdl Granitoid is composed mainly of quartz, k-feldspar, plagioclase, biotite, muscovite and minor amphibole while its enclaves contain mostly plagioclase, amphibole, minor pyroxene and biotite. the Uckapth Granitoid has calcalkaline and peraluminous （AJCNk= 1.0-1.3） geochemical characteristics. It is characterized by high LILE/HFSE and LREE/HREE ratios （（La/Lu）N 3-33）, and has negative Ba, ta, Nb and Eu anomalies, resembling those of comsion granitoids. the {）fkaplh Granitoid has relatively high StSr/S6Sr0） ratios （0.711189--0.716061） and low eNd（t） values （-5.13 to -7.13）, confirming crustal melting. In contrast, the enclaves are tholeiitic and metaluminous, and slightly enriched in LILEs （k, Rb） and th, and have negative ta, Nb and ti anomalies; propose that they were derived from a subduction-modified mantle source. Based on mineral and whole rock chemistry data, the Uckapth granitoid is H-（hybrid） type, post-collision granitoid developed by mixing/mingllng processes between crustal melts and mantle-derived mafic magmas.

关键词： H-type granitoid mafic enclave geochemistry Central Anatolia turkey

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transport mechanism in chemically reactive hybrid nanofluid flow containing gyrotactic micro-organisms over a curved oscillatory surface

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 177-192页

作者： M.NAVEED M.IMRAN t.ASGHAR Z.ABBAS Department of Mathematics Division of Science and TechnologyUniversity of Education Department of Mathematics The Islamia University of Bahawalpur

this paper examines the transport analysis, including both heat transfer and mass transfer, in hybrid nanofluid flow containing gyrotactic microorganisms towards a curved oscillatory surface. the influence of magnetic fields is also inspected in terms of their physical characteristics. to depict the phenomena of transport, modified versions of both Fick's and Fourier's laws are used. Additionally, the characteristics of both heterogeneous and homogeneous chemical reactions are also incorporated. Utilizing a curvilinear coordinate system, the flow problem is formulated as partial differential equations(PDEs)for momentum, concentration, microorganism field, and energy. An analytical solution to the obtained flow equations is achieved utilizing the homotopy analysis method(HAM).the effects of significant flow parameters on the pressure and microorganism fields, velocity, oscillation velocity, concentration, and temperature distributions are shown via graphs. Furthermore, the variations in skin friction, mass transfer rate, heat transfer rate, and local motile number due to different involved parameters are presented in tables and are analyzed in detail. Graphical results indicate that the curves of velocity and temperature fields are enhanced as the values of the solid volume fraction variables *** is also verified that the concentration rate field decreases as the values of the homogeneous reaction strength parameter and the radius of curvature parameter increase, and it increases with the Schmidt number and the heterogeneous reaction strength *** outcomes show a favorable response of the motile number to advanced values of the Peclet number, the Schmidt number, the microorganism difference parameter, and the bio-convective Lewis number.

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Precise measurement of magnetic moment of short-lived β-emitting nuclei ^(12)B (I~π=1^+,t_(1/2)=20.18 ms)

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Science China(Physics,Mechanics & Astronomy) 2004年第5期47卷 531-539页

作者： M. Mihara M. Fukuda k. Matsuta t. Minamisono Graduate School of Science Osaka University Toyonaka Osaka 560-0043 JapanGraduate School of Science Osaka University Toyonaka Osaka 560-0043 JapanGraduate School of Science Osaka University Toyonaka Osaka 560-0043 JapanGraduate School of Science Osaka University Toyonaka Osaka 560-0043 Japan

the spin polarized β-emitting nuclei12B (I π=1+,t 1/2=20.18 ms) were produced by the nuclear reaction11B(d, p)12B and by the selection technique of the incident deuteron energy and the12B recoil angle following the nuclear reaction. the nuclear magnetic moment of the short-lived nuclei12B was measured by β-NMR with the β-NMR and β-NQR setup established for the first time in China. the nuclear magnetic moment of12B was determined to be μ=0.99993±0.00048 nm org=0.99993±0.00048 after the precise correction of the knight shift.

关键词： short-lived 12B (Iπ = 1+, t1/2 = 20.18 ms) nuclei, nuclear magnetic moment, knight shift, β-NMR.

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Grade zero part of forced graded algebras

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Science China Mathematics 2018年第2期61卷 269-286页

作者： Hankyung ko Mathematisches Institut Universitt Bonn

this paper concerns a certain subcategory of the category of representations for a semisimple algebraic group G in characteristic p, which arises from the semisimple modules for the corresponding quantum group at a p-th root of unity. the subcategory, thus, records the cohomological difference between quantum groups and algebraic groups. We define translation functors in this category and use them to obtain information on the irreducible characters for G when the Lusztig character formula does not hold.

关键词： algebraic groups quantum groups cohomology characters

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瑞典钢铁公司tunnplt厂板坯连铸机的现代化改造

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钢铁 2001年第11期36卷 18-21页

作者： Haral.,t Pirner,k 瑞典钢铁公司奥钢联工程技术公司

瑞典钢铁公司tunnplat厂板坯连铸机改造一期工程于2000年7月完成,内容包括铸机机头的改造、在4号连铸机上安装奥钢联开发的DYNAFLEX液压振动装置以及在4号和5号连铸机上安装HYDROWAM液压调宽系统.这一改造的主要收益是提高设备作业率、... 详细信息

瑞典钢铁公司tunnplat厂板坯连铸机改造一期工程于2000年7月完成,内容包括铸机机头的改造、在4号连铸机上安装奥钢联开发的DYNAFLEX液压振动装置以及在4号和5号连铸机上安装HYDROWAM液压调宽系统.这一改造的主要收益是提高设备作业率、增大操作灵活性、增加连铸机产量以及改善板坯质量.计划于2001年实施的二期改造将包括4号连铸机铸坯导向系统的改造.

关键词：瑞典钢铁公司板坯连铸机现代化改造

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the Isentropic Exponent of Single-Ionized Mono-Atomic Plasmas

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Plasma Science and technology 2012年第8期14卷 699-701页

作者： k.t.A.L.BURM PlasmAIX for Plasma Research Heimerik 472440 GeelBelgium

the isentropic exponent of single-ionized mono-atomic plasmas in thermal equilib- rium is studied. Its behavior as a function of the ionization degree and temperature is examined for argon and zinc plasmas at two pressures （1 bar and 1 mbar, 1 mPa and 1 Pa）, respectively. the results show that for the two sorts of plasma the isentropic exponent equals typically about 1.1-1.2 within a considerably wide range of the ionization degree （5%-80%）.

关键词： plasma modelling isentropic exponent

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