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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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基于雨流循环计数法的货车转向架端梁疲劳寿命预测

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国外铁道车辆 2021年第3期58卷 39-44页

作者： s.h.baek s.s.ChO [韩]W.s.JOO 阎锋(译) 赵云生(校) 不详

采用雨流循环计数来评估端梁在运营载荷条件下的累积损伤,并将采用雨流循环计数法、P-s-N曲线和修正Miner法则计算得到的疲劳寿命与实际疲劳寿命比较,误差在2.7%~31%,两者吻合较好。

关键词：货车转向架疲劳寿命预测韩国

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Free vibration and transient response of double curved beams connected by intermediate straight beams

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 37-62页

作者： R.A.JAFARI-TALOOKOLAEI h.GhANDVAR E.JUMAEV s.KhATIR T.CUONG-LE school of Mechanical Engineering Babol Noshirvani University of Technology Department of Mechanical Engineering Faculty of Engineering New Uzbekistan University University of Business and science Center for Engineering Application and Technology solutions Ho Chi Minh City Open University

This paper investigates the free vibration and transient response of interconnected structures including double curved beams and intermediate straight beams,which are all constructed from functionally graded porous(FGP) materials. The strain potential and kinetic energies of each beam along with the work done by the external force are calculated. Additionally, a higher-order beam element is introduced to derive stiffness and mass matrices, along with the force vector. The curved and straight beams are discretized, and their assembled stiffness, mass matrices, and force vectors, are *** conditions at the joints are used to derive the total matrices of the entire structure. subsequently, the natural frequencies and transient response of the system are determined. The accuracy of the mathematical model and the self-developed computer program is validated through the comparison of the obtained results with those of the existing literature and commercial software ANsYs, demonstrating excellent ***, a comprehensive study is conducted to investigate the effects of various parameters on the free vibration and transient response of the considered structure.

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Neuroinflammation as a therapeutic target in huntington's disease

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Neural Regeneration Research 2025年第3期20卷 817-818页

作者： Andrea Kwakowsky Thulani h.Palpagama Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CentreUniversity of GalwayGalwayIreland

In 1872, George huntington presented his essay “On Chorea” to the Meigs and Mason Academy of Medicine and, in doing so, detailed a disease that would later bear his name. huntington's disease(hD) is a genetic, neurodegenerative disease that manifests as the loss of motor control,cognitive impairment,and mood and psychiatric changes in paents.

关键词： huntington inflammation Medicine

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Glial response in the midcingulate cortex in huntington’s disease

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Neural Regeneration Research 2025年第1期20卷 207-208页

作者： Thulani h.Palpagama Andrea Kwakowsky Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CenterUniversity of GalwayGalwayIreland

huntington’s disease(hD)is a genetic disease characterized by the progressive degeneration of the striatum and *** can present with a variety of symptoms that can broadly be classified into motor symptoms,inclusive of choreatic movements and rigidity,mood and psychiatric symptoms,such as depression and apathy,and cognitive symptoms,such as cognitive *** causal mutation underlying hD results from an expansion of a CAG repeat sequence on the IT15 gene,resulting in the formation and accumulation of a mutant huntingtin protein.

关键词： huntington degeneration cortex

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Comparative chemical sensor for detection of chromium(Ⅵ) in aqueous solution

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Optoelectronics Letters 2025年第1期21卷 21-27页

作者： sura h.AL-REKABI A.A.ALWAhIB Electrical Technique Department Al Suwayrah Technical Institute Middle Technical University Laser and Optoelectronics Department University of Technology-Iraq

A process for purifying aqueous solutions containing heavy and toxic metals such as chromium（Cr） has been investigated. One of the extremely harmful pollutants in rivers and seawater is the heavy metal ions due to their direct impacts on human, animals and plants are hexavalent Cr（Ⅵ）. Consequently, highly sensitive sensor to detect Cr is essential. surface plasmon resonance（sPR） technique has attracted huge research interest in detecting heavy metals specifically. In this study, three types of prism-based sPR sensor, gold（Au）/silver（Ag）, Au/polyaniline（PANI） and Au/titanium dioxide（TiO2） nanostructured films, are investigated as potential sensing material to detect the presence of Cr（Ⅵ） ions in water. The base Au layer with thickness of 48.3 nm is deposited on a glass slide for all sensors. For Au/Ag, Au/PANI nanofibers and Au/TiO2sensor films, the Cr（Ⅵ） concentration is varied from 1 ppm to 15 ppm with sensitivity of 0.270 °ppm-1, 0.082 °ppm-1and 0.039 °ppm-1, respectively. Based on these results, the Au/PANI nanofibers are the most sensitive to Cr（Ⅵ） among the tested sensing materials.

关键词： Titanium dioxide

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Influence of contact curvature on frictional energy dissipation under varying tangential loads

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Friction 2024年第2期12卷 363-374页

作者： sumin baek seunghun baek school of Mechanical Engineering Pusan National UniversityPusan 46241Republic of Korea

This study investigates the effect of contact surface curvatures on the friction response under varying tangential loadings using a finite element(FE)*** results showed that the geometry of the surface influences the contact force at the interface and reduces the friction effect through an unsteady distribution of the contact *** relationship between the friction effect,excitation,and contact surface shape was also examined,revealing a linear inverse relationship between the friction and *** findings provide a comprehensive understanding of the frictional interactions between elastic bodies and highlight the role of curvature as a design parameter for regulating the friction effect.

关键词： frictional contact curvelinear contact frictional energy dissipation contact curvature

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Does mesenchymal stem cell’s secretome affect spinal sensory circuits?Implication for pain therapies

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Neural Regeneration Research 2025年第1期20卷 181-183页

作者： Francesco Ferrini Esri h.Juárez Adalberto Merighi Department of Veterinary sciences University of TurinGrugliascoTOItaly Department of Psychiatry and Neuroscience UniversitéLavalQuébec CityQCCanada

Mesenchymal stem cells(MsCs)are multipotent adult stem cells of mesodermal origin that can be isolated from various tissues,including bone marrow,tooth pulp,adipose tissue,and umbilical *** have gained significant attention in regenerative medicine due to their ability to modulate the immune system and favor tissue *** enrich the medium in which they are cultivated with a broad range of bioactive molecules,including growth factors,cytokines,chemokines,enzymes,nucleic acids,and extracellular vesicles that collectively compose the MsC *** increasing number of pre-clinical studies suggest that delivering in vivo an MsC-conditioned medium(i.e.,the medium collected from MsC cultures after at least 3 days of exposure)exerts neuroprotective and anti-inflammatory effects in a variety of neurological conditions.

关键词： protective clinical collective

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study of the Unsteady Condensation of Moist Air in shock Tube

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Journal of Thermal science 2004年第3期13卷 235-244页

作者： s.-C. baek s.-B. KWON h.-D. KIM T. sETOGUChI s. MATsUO Department of Mechanical Engineering Kyungpook National University 1370 Sankyuk-dong Daegu 702-701 Korea school of Mechanical Engineering Andong National University Songchun-dong Andong 760-749 Korea Department of Mechanical system Engineering Saga University 1 Honjo Saga 840-8502 Japan

The major flow physics of the unsteady condensation in the subsonic flows induced by the unsteady expansion waves in shock tube was studied in this paper. The unsteady condensation phenomenon was analyzed by using the two-dimensional, unsteady, Navier-stokes equations, which were fully coupled with a droplet growth equation. The third-order TVD MUsCL scheme was applied to solve the governing equation systems. The computational results were compared with the previous experimental data. The time-dependent behavior of unsteady condensation of moist air in shock tube was investigated in details. The results show that the major characteristics of the unsteady condensation phenomenon in shock tube are very different from those in the supersonic wind tunnels.

关键词： shock tube shock wave expansion wave unsteady flow compressible flow unsteady condensation

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Dynamic stress concentration in an infinitely long cylindrical cavity due to a point spherical source embedded within a fluid-saturated poroelastic formation of infinite extent

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 139-156页

作者： h.hOssEINI O.BALILAshAKI Department of Mechanical Engineering Faculty of EngineeringGolestan University

The effects of a harmonically exciting monopole source on an infinitely long cylindrical cavity embedded entirely within a fluid-saturated poroelastic formation of infinite extent are examined theoretically. It is assumed that the source is located outside the cavity at a specified distance from the borehole axis. The magnitudes of the hoop and radial stresses beside the pore pressures exerted on the interface and inside the porous medium surrounding the borehole are calculated and discussed. Biot's poroelastic modeling along with three types of boundary conditions for the cylindrical interface including the ideal fluid, empty borehole, and rigid inclusion with a hard boundary is employed for the analysis. Utilizing a proper translational addition theorem for expressing the incident spherical wave in terms of cylindrical wave expansions, the proposed boundary conditions at the interface are satisfied. stresses are formulated by means of wave potential functions in a three-dimensional(3D) manner. The effects of the frequency and the radial distance between the source and borehole on the induced stresses are examined for the first cylindrical modes over frequency spectra. Two permeability conditions for the interface and three types of soils for the porous formation are considered throughout the analysis. To give an overall outline of the study, a numerical example is presented. The results clearly indicate that the distance is a key parameter and has considerable effects on the induced stress values. In addition, the interface permeability condition and soil characteristics play an important role in determining the dynamic response of the borehole. Finally,the obtained results are compared with the relevant analyses existing in the literature for some limit cases, and good agreement is achieved.

关键词： point source cylindrical cavity porous medium wave-field transformation stress concentration O353.4

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