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Journal of Materials Science & Technology 2018年第12期34卷 2431-2438页

作者： Chengshuai Li shaodong hu Zhongming Ren Yves Fautrelle Xi Li State Key Laboratory of Advanced Special Steels Shanghai University SIMAP-EPM-Madylam/G-INP/CNRS PHELMA

Effect of the simultaneous application of a high static magnetic field and a low alternating electric current on the solidification structure of pure aluminum has been investigated. Results show that the refinement of the solidification structure is enhanced by the electric current under a certain magnetic field. However,when the magnetic field intensity exceeds a certain value, the refinement is impaired under a certain electric current. The observation by electron backscattered diffraction(EBSD) shows the complex fields have led to the increase of the low angle boundaries with the refinement. Moreover, the application of the static gradient magnetic field is capable of modifying the distribution of the refined grains. The above results may be attributed to the formation of the cavities during the electromagnetic vibration process and the high magnetic field.

关键词： Complex fields High magnetic field Refinement Grain boundaries

The Co-Evolution between Remittance Business for Overseas Chinese and Institutions： The Case of Chaoshan Region During 1860-1949

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Frontiers of Business Research in China 2013年第1期7卷 138-164页

作者： shaodong hu Siyan Chen Business-School Shantou University Shantou 515063 China Business School Shantou University Shantou 515063 China

This study proposes a framework to analyze the co-evolution between the remittance business for overseas Chinese and their institutions during 1860-1949. In particular, this paper focuses on the co-evolutions between their organizational fields and institutions. It shows that participants communicate, compete and cooperate through their organizational fields, and finally promote the remittance business. Since the three pillars of institutions---regulative, normative, and cultural-cognitive--correlate and interact with each other, it is found that institutions can promote the business of overseas remittance if the combination of these three pillars of institutions works well; otherwise, it ends the business with confusion.

关键词： the remittance business for overseas Chinese institutional theory,organizational field

Effects of trace ytterbium addition on microstructure,mechanical and thermal properties of hypoeutectic Al-5Ni alloy

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Journal of Rare Earths 2022年第8期40卷 1305-1315页

作者： Kang Wang shaodong hu Yanglin Zhong Shuoxun Jin Zirong Zhou Zhiyu Wang Jiongcai Chen Bingbing Wan Wenfang Li School of Materials Science and Engineering Dongguan University of TechnologyDongguan 523808China Institute of Science and Technology Innovation Dongguan University of TechnologyDongguan 523808China

Over the past decade,the cast aluminum alloys with excellent mechanical and conductivity properties have emerged as potential materials for thermal ***,the traditional Al-Si based alloys are difficult to make significant breakthrough in conductivity *** hypoeutectic Al-5Ni alloy also possesses sound castability and is expected to be applied in thermal management *** this study,the effects of ytterbium(Yb element) at 0-0.5 wt% on the microstructures as well as the electrical/thermal conductivity and mechanical properties of the Al-5Ni alloy were systematically *** experimental results indicate that the addition of Yb at a relatively low amount not only reduces the secondary dendrite arm spacing of the α-Al grains,but also modifies the morphology and distribution of eutectic boundary ***,it is found that the dosage of Yb at 0.3 wt% in the Al-5Ni alloy can simultaneously improve the yield strength,ultimate tensile strength and electrical/thermal *** strengthening and toughening of the Al-5Ni alloy are mainly attributed to the decrease of secondary dendrite arm spacing and the improvement of eutectic *** transmission electron microscopy/selected area electron diffraction(TEM/SAED) analysis indicates that the ytterbium in Al-5Ni alloy will form Al_(3)Yb phase,which mainly agglomerates in the Al_(3)Ni phase *** phase is helpful to decrease the solubility of impurity elements(e.g.,Fe and Si) in the α-Al matrix,which is beneficial to electrical/thermal *** value of this study lays foundation for manufacturing Al-Ni alloys with high thermal conductivity and acceptable mechanical properties.

关键词： Aluminum alloys Ytterbrium Trace dosage Mechanical properties Thermal conductivity Rare earths

Effect of transverse static magnetic field on radial microstructure of hypereutectic aluminum alloy during directional solidification

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Journal of Materials Science & Technology 2021年第17期76卷 207-214页

作者： shaodong hu Long Hou Kang Wang Zhongmiao Liao Wen Zhu Aihua Yi Wenfang Li Yves Fautrelle Xi Li School of Materials Science and Engineering Dongguan University of TechnologyDongguan 523808China State Key Laboratory Advanced Special Steel Shanghai UniversityShanghai 200072China School of Materials Science and Engineering Xi'an Jiaotong UniversityXi'an710049China SIMAP-EPM-Madylam/G-INP/CNRS.PHELMA.38402 St Martin d'Heres Cedex.France

The effect of different scales thermoelectric magnetic convection(TEMC)on the radial solidification microstructure of hypereutectic Al alloy has been investigated under transverse static magnetic field during directional solidification,focusing on the formation of *** experimental and numerical simulation results indicate that the TEMC circulation at sample scale under transverse static magnetic field leads to the enrichment of solute Al on one side of the *** TEMC and the solute enrichment degree increase with the increase of magnetic field when the magnetic field increases to 0.5 *** enrichment degree of solute elements under magnetic field is affected by temperature gradient and growth *** non-uniform distribution of solute Al in the radial direction of the sample results in the non-uniform distribution of primary dendrite arm spacing(PDAS).Moreover,the applied magnetic field can lead to freckle formation and its number increases with the increase of magnetic *** change of freckle is consistent with the anisotropy TEMC caused by the anisotropy of primary dendrite or primary dendrite network under magnetic ***,the mechanism of synergism effect of the anisotropy TEMC,the distribution of solute Al and the PDAS on freckle formation and evolution is studied during directional solidification under magnetic field.

关键词： Static magnetic field Directional solidification Melt flow Radial solidification microstructure Freckle

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台湾经济结构突变、周期波动和经济增长

世界经济研究 2010年第3期 73-80页

作者：胡少东李非厦门大学台湾研究中心

本文运用结构突变理论,在检验台湾GDP序列的平稳性后,建立台湾GDP序列的拟合模型,实证检验支持台湾GDP序列在1974、1981、2001年产生结构突变,且潜在GDP函数发生了变化。通过分离GDP序列的趋势成分和周期成分,运用周期成分对台湾经济周... 详细信息

本文运用结构突变理论,在检验台湾GDP序列的平稳性后,建立台湾GDP序列的拟合模型,实证检验支持台湾GDP序列在1974、1981、2001年产生结构突变,且潜在GDP函数发生了变化。通过分离GDP序列的趋势成分和周期成分,运用周期成分对台湾经济周期波动进行分析。研究发现,台湾经济周期波动主要受世界经济景气和台湾经济发展策略的影响。发生结构突变后台湾经济增长趋势发生变化,这与台湾经济的发展阶段和相应采取的经济发展策略密切相关。论文最后对未来台湾经济增长趋势做出预测。

关键词：台湾经济经济周期结构突变增长趋势

综合超前预报方法在岩溶区隧道不良地质体探测中的应用

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公路工程 2014年第5期39卷 103-109页

作者：胡绍东湖北省保康至宜昌高速公路建设指挥部湖北宜昌444200

岩溶区隧道施工过程中易发生涌水突泥等灾害事故,为保证岩溶区隧道的施工安全,降低施工灾害发生的概率,施工前有必要对隧道进行超前预报。依托湖北省保宜高速公路尚家湾隧道,通过地质分析研究了尚家湾隧道的岩溶发育特征,利用TSP超前预... 详细信息

岩溶区隧道施工过程中易发生涌水突泥等灾害事故,为保证岩溶区隧道的施工安全,降低施工灾害发生的概率,施工前有必要对隧道进行超前预报。依托湖北省保宜高速公路尚家湾隧道,通过地质分析研究了尚家湾隧道的岩溶发育特征,利用TSP超前预报系统和地质雷达等物探手段对尚家湾隧道的地质缺陷体进行了探测,并结合短距离钻探进行对比分析,探测结果与现场实际揭露情况基本吻合。综合采用TSP超前预报系统和地质雷达可较为精确预报岩溶区隧道的不良地质,其预报手段可供类似工程借鉴。

关键词：岩溶区隧道不良地质 TSP超前预报系统探地雷达

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外文图书的估价与实价的偏差分析

图书馆 1999年第1期 50-51页

作者：胡少东汕头大学图书馆

本文对外文图书的估价和实价的偏差进行了科学分析，找出其内在联系，并论述其在外文图书的订购中的参考指导作用。

关键词：价格外文图书偏差分析图书订购

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水南特大桥百米超长人工挖孔桩施工技术

铁道建筑 2006年第12期46卷 29-31页

作者：胡绍东湖北沪蓉西高速公路建设指挥部湖北恩施445000

结合沪蓉西高速公路水南特大桥4根近百米超长人工挖孔桩基础的施工,介绍该桥在恶劣地质条件下超长人工挖孔桩的施工工艺、技术措施、施工质量和安全控制措施,并对在特定条件下使用这一工艺的特点、事故处理及应用前景做了阐述。

关键词：百米超长人工挖孔桩施工技术

近代潮汕侨批网络构建与特征的量化分析——以1936年侨批局登记详情表为证据

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中国经济史研究 2017年第5期 58-69页

作者：胡少东孙越张娜汕头大学商学院

限于史料,现有关于侨批网络的研究结论多陈陈相因,缺乏足够的证据支持。本研究以广东省档案馆馆藏侨批局登记详情表为资料来源,采用社会网分析方法,展现了1936年潮汕侨批网络的概貌,从实证的角度分析侨批网络的结构与特征,识别潮汕八邑... 详细信息

限于史料,现有关于侨批网络的研究结论多陈陈相因,缺乏足够的证据支持。本研究以广东省档案馆馆藏侨批局登记详情表为资料来源,采用社会网分析方法,展现了1936年潮汕侨批网络的概貌,从实证的角度分析侨批网络的结构与特征,识别潮汕八邑中的中心批局。研究发现,侨批局通过乡族关系和市场关系构建合作,形成覆盖潮汕华侨侨眷的侨批网络。在跨国环节,侨批局更多地依靠乡族关系建立合作,而在国内环节,侨批局更多地依靠市场关系建立合作。以汕头批局为中心的侨批网络服务范围并不限于本县本乡,而是扩展到整个潮汕地区。

关键词：侨批网络侨批局社会网络分析

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美术教育专业加强课程思政建设的思考与实践

广东第二师范学院学报 2022年第4期42卷 74-82页

作者：胡少东天水师范学院美术与艺术设计学院甘肃天水741001

全面推行课程思政是新时代高校思想政治工作的重要举措。在美术教育专业教学中,以立德树人为根本任务,建设具有专业特点的课程思政体系,对培养合格中小学美术教师具有重要意义。美术教育具有天然的育德功能,与思想教育具有高度的互补性... 详细信息

全面推行课程思政是新时代高校思想政治工作的重要举措。在美术教育专业教学中,以立德树人为根本任务,建设具有专业特点的课程思政体系,对培养合格中小学美术教师具有重要意义。美术教育具有天然的育德功能,与思想教育具有高度的互补性。当前美术教育专业课程思政仍存在师生对专业教育与课程思政结合的意义认识模糊、教学与课程思想内容剥离、教师缺乏对思政元素挖掘的主动性等问题。针对这些问题,教师应进一步深化对美术教育专业课程思政的认识;根据不同类型的课程特点,挖掘和利用各类思政教育资源,促进艺术理论教学、绘画技能技法训练、艺术实践与思政元素的融合,提升美术教育课程思政的魅力,实现美术教育与课程思政的无缝衔接。同时,要善于利用本土资源,形成具有本土特色的美术教育专业课程思政体系。

关键词：美术教育课程思政立德树人