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Journal of Magnesium and Alloys 2024年第12期12卷 5119-5131页

作者： h.Yu Z.K.Liu Y.Liu W.Yu Y.L.Xu C.Liu B.A.Jiang s.h.park K.s.shin Tianjin Key Laboratory of Materials Laminating Fabrication and Interfacial Controlling Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin 300130PR China College of Materials science and Engineering Hunan UniversityChangsha 410082PR China school of Materials science and Engineering Hefei University of TechnologyHefei 200039PR China Baosteel Metal Co. Ltd.Shanghai 200940PR China PLA AAAAD Hefei 230031PR China school of Materials science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials science and Engineering Seoul National University08826Republic of Korea

This study investigates the influence of varying rolling reduction on the evolution of microstructure and mechanical properties of Mg–10Gd(in wt%)alloys by caliber rolling(CR).By increasing the rolling reduction from 45%to 65%,a uniform bimodal structure is obtained in which coarse grains(CGs)larger than 10μm are surrounded by fine grains(FGs).The Mg–Gd alloy subjected to 65%reduction exhibits superior mechanical properties,*** strength(Ys)of~424 MPa,ultimate tensile strength(UTs)of~500 MPa and elongation(El.)of~3.3%.The synergistic improvement in strength and ductility is primarily attributed to the combined effects of low-angle grain boundary(LAGB)strengthening,precipitation strengthening,and the coordinated deformation exhibited by the bimodal *** addition,caliber rolling also provides a novel approach for the design of Mg alloys with uniform bimodal structures that exhibit both high strength and ductility.

关键词： Mg–Gd alloy Caliber rolling Bimodal microstructure Mechanical properties

Development of Mg-Zn-Y-Zr casting magnesium alloy with high thermal conductivity

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Journal of Magnesium and Alloys 2021年第5期9卷 1583-1593页

作者： V.E.Bazhenov A.V.Koltygin M.C.sung s.h.park Yu.V.Tselovalnik A.A.stepashkin A.A.Rizhsky M.V.Belov V.D.Belov K.V.Malyutin National University of science and Technology“MIsis” Leninskiy pr.4Moscow 119049 Russia LG Electronics Inc. Yeoui-daeroYeongdeungpo-gu.128LG Twin TowerSeoul 07336 Republic of Korea

Magnesium alloys are used in aircraft because of their light ***,for these alloys to be applied in electronic devices,high thermal conductivities are *** high-potential compositions of Mg-Zn-Y-Zr alloys were selected by phase composition and their freezing ranges calculated using Thermo-Calc *** alloys were prepared,and their fluidity,hot tearing susceptibility,mechanical properties,and thermal conductivity were obtained and *** alloy composed of Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr was selected for further investigation,because of its high thermal conductivity and satisfactory mechanical *** Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr alloy’s fluidity and hot tearing susceptibility were similar to those of the widespread AZ91 commercial casting magnesium *** influence of a heat treatment regime on the microstructure,thermal conductivity,and mechanical properties of the developed alloy was also *** was established that the room temperature thermal conductivity of the Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr alloy after aging at 300℃for 5 h was 105 W/m K^(-1).Additionally,the following tensile test results were obtained in aged condition:120 MPa yield strength,200 MPa ultimate tensile strength,and 4%*** utilization of solid solution heat treatment at 520℃for 8 h prior to aging can promote up to 9%increase in *** Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr casting alloy can be used as a high thermal conductivity material with industrial applications.

关键词： Magnesium alloy Mg-Zn-Y-Zr Thermal conductivity Phase composition Fluidity hot tearing susceptibility

Design of Mg-Zn-si-Ca casting magnesium alloy with high thermal conductivity

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Journal of Magnesium and Alloys 2020年第1期8卷 184-191页

作者： V.E.Bazhenov A.V.Koltygin M.C.sung s.h.park A.Yu.Titov V.A.Bautin s.V.Matveev M.V.Belov V.D.Belov K.V.Malyutin National University of science and Technology“MIsis” Leninskiy pr.4Moscow 119049Russia LG Electronics Inc. Yeoui-daeroYeongdeungpo-gu.128LG Twin TowerSeoul 07336 Republic of Korea

Magnesium alloys are commonly used to produce lightweight *** most magnesium alloys exhibit low thermal conductivities,high thermal conductivities are needed for electronic *** this study,we attempted to develop new magnesium casting alloys with high thermal *** Mg-Zn-si-Ca alloy compositions were chosen using CALPhAD(CALculation of PhAse Diagrams)calculations,and alloy samples were *** fluidity and hot-tearing resistance were *** results indicated that these properties were similar to those of AZ91 *** tests showed that high-pressure die casting could produce Mg-Zn-si-Ca alloys possessing mechanical properties 1.5-3 times higher than those produced via sand *** alloy thermal conductivity was 126 W/mK at room *** corrosion rates of the as-cast samples in NaCl/water solutions were two times higher than that of AZ91.

关键词： Magnesium alloy Thermal conductivity Phase composition Corrosion rate sand casting high-pressure die casting

钆塞酸二钠增强MRI评估单发肝细胞癌病人的术后转归：风险评分系统的建立和验证

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国际医学放射学杂志 2023年第4期 490-491页

作者： s.h.park B.Kim s.Kim s.park Y.h.park s.K.shin 周朝阳

摘要目的建立并验证基于钆塞酸二钠增强的肝脏MRI特征和临床因素的风险评分系统，预测单发肝细胞癌（hCC）无复发生存期（RFs）。方法回顾性纳入2个中心接受

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单纱纺纱与环锭纱及其织物物理性能的比较

纺织导报 2001年第6期 31-32,34-35页

作者： s.h.park s.J.Kim

探讨了用单纱纺纱技术纺制的精梳毛纱及其织物的物理特性。为达此目的，采用了各种单纱纺纱辊纺制不同的单纱纺纱，并对它们进行测量及与常规环锭纺纱工艺纺制的纱进行比较；分别用单纱纺纱工艺和环锭纺纱工艺按3种加捻系数纺制出短纤... 详细信息

探讨了用单纱纺纱技术纺制的精梳毛纱及其织物的物理特性。为达此目的，采用了各种单纱纺纱辊纺制不同的单纱纺纱，并对它们进行测量及与常规环锭纺纱工艺纺制的纱进行比较；分别用单纱纺纱工艺和环锭纺纱工艺按3种加捻系数纺制出短纤纱，然后将两种工艺纺出的纱在小样机上织成2/2斜纹织物，将坯布精练、烘干、汽蒸，最后罐蒸。然后测量织物的物理性能，根据单纱纺纱工艺纺制的纱的机械特性及成纱原理用KEs-FB系统对这些织物的物理特性加以测量和研究。

关键词：单纱纺精梳毛纱纺纱织物物理性能环锭纺纱

基于对比增强CT检查及深度学习检测胰腺实性和囊性肿瘤

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国际医学放射学杂志 2023年第2期 228-229页

作者： h.J.park K.shin M.You s.Kyung s.Y.Kim s.h.park 惠情情

摘要深度学习（DL）可以提高在影像中各种胰腺病变的诊断。目的开发和验证一种基于DL的方法以用于在腹部CT上自动识别患有各种实体和囊性胰腺肿瘤的病人，并将

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在MR普美显增强下原发性肝癌的LI-RADs分型和预后

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国际医学放射学杂志 2019年第2期42卷 237-238页

作者： s.h.Choi s.s.Lee s.h.park K.M.Kim E.Yu Y.park 罗浩然(译) 杜明珊(校) Department of Radiology and Research Institute of Radiology University of Ulsan College of MedicineAsan Medical Center88 Olympic-ro 43-gilSongpa-guSeoul 05505South Korea 不详

目的(a)评价各型肝脏影像报告和数据系统(LIRADs)原发性肝癌术后的预后意义;(b)确定2017版LIRADs在MR普美显增强中区分肝细胞肝癌(hCC)、肝内胆管细胞癌(IhCC)和肝细胞-胆管细胞混合型肝癌(chCCCC)方面的作用。

关键词：原发性 LI-RADs MR

非增强CT与和双能量CT结合可提高早期痛风的诊断

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国际医学放射学杂志 2019年第3期 369-370页

作者：曹娜娜 s.K.Lee J.Y.Jung W.h Jee J.J.Lee s.h.park Department of Radiology Seoul St.Mary’s HospitalCollege of MedicineThe Catholic University of Korea

摘要目的探讨痛风早期出现症状的第一跖趾关节的非增强CT(NCCT)对双能CT(DECT)的增值。方法连续记录115例有关节疼痛的病人,根据2015年EULAR/ACR标准

关键词： CT

影响结直肠癌肝转移射频消融术后局部肿瘤进展的围手术期变量的单中心回顾性分析

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国际医学放射学杂志 2021年第2期44卷 231-232页

作者： K.han J.h.Kim s.G.Yang s.h.park h.K.Choi s.Y.Chun 余倩倩郭邦俊

摘要在接受射频消融治疗的结直肠癌肝转移病人中,局部肿瘤进展与较差的生存有关。预测局部肿瘤进展可能有助于选择从射频消融治疗获益最多的结直肠癌肝转移病人。

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帕金森大鼠模型骨髓间充质干细胞移植后多巴胺载体结合能力增强:应用18F-FP-CIT标记的正电子发射体层成像的小动物研究

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国际医学放射学杂志 2015年第4期 396-397页

作者： B.N.park J.h.Kim.K.Lee s.h.park Y.s.An 顾程 Department of Nuclear Medicine and Molecular Imaging School of Medicine Ajou UniversityWoncheon-dongYeongtong-gu Gyeonggi-do Suwon Korea 443-749

摘要目的采用氟18氟代丙基甲酯基碘代苯基降莨菪碱(18F-FP-CIT)标记的PET成像评估帕金森大鼠模型骨髓间充质干细胞(BMsC)移植后的效果。方法将经静脉内注射

关键词：帕金森多巴胺三羟酪胺神经递体骨髓间充质干细胞大鼠模型 FP