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THE CHARACTERS OF COSMIC RAY EVENTS IN MAR.&AUG.1989

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天文研究与技术 1990年第4期 219-222页

作者： Xiao Shaoyu, Yu Shaohua, Liu Bin Li Runshen, Wu CuifangGuangzhou Observatory, Chinese Academy of Sciences

This paper mainly discusses the variation of cosmic ray intensitycaused by solar flares in Mar. and Aug. 1989. Qualitative comparisonand analysis have been made for the events in Mar. and Aug. especiallyfrom the difference of the variation of cosmic ray intensity in BeijingTokoy, and Guangzhou, and the anisotropic character of cosmic rayintensity from East to West direction recorded by the scintillator telescope in Guangzhou. It is found that though the events of decreaseof cosmic ray in Mar. and Aug. both coused by solar flares, there aredifference between two events, either in the shape of the decrease of cosmic ray or in the energy distribution of the falling particles.1989 is one of the years of the nationwide joint observation for the 22’ Max. The scintillator multi-directional telescope in Guang-zhou Observatory took part in the work.

关键词： nationwide Guangzhou falling cosmic directional AUG.1989 anisotropic telescope summarized recovering

Negative Refraction in Indefinite Materials

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Negative Refraction in Indefinite Materials

2012 China Functional Materials Technology and Industry Forum

作者： Hong-ya Wu Ji Zhou State key laboratory of new ceramic and fine processing Department of materials science and engineeringTsinghua University

Negative refraction is a fantastic optical property and attracts more and more attentions. As first proposed,materials with negative permittivity and negative permeability simultaneously exhibit negative ***,negative refraction was found in the indefinite medium based on the strong anisotropy of *** this paper,the theory of the negative refraction in the anisotropic materials and the research progress in recent years were reviewed.

关键词： anisotropic Negative refraction Indefinite

Research on Failure Criterion of Complex Rock Masses

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Research on Failure Criterion of Complex Rock Masses

作者： Ruan Huaining Xu Zhiying (Hehai University.Nanjing,210024,China)

A theoretical and experimental analysis of the failure criterion of nonhomogeneous nonlinear anisotropic rocks is *** the failure criterion proposed in the paper,the influence of the intermediate principal stress is taken into *** strength of anisotropic and nonhomogeneous rocks,the nonlinear envelope of the Mohr circles and the effect of nonhomogeneous temperature on rock strength are all *** classical criteria may be obtained through the simplification of the present criterion. There are thirteen material constants in this *** may be determined by the conventional *** example is *** the example this criterion is applied in the analysis of experimental results of the bedrock of Ankang Dam in Shaanxi Province of China.

关键词： failure criterion rock anisotropic nonlinear nonhomogeneous

各向异性全纤维素褶皱水凝胶的可视化构筑策略研究

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各向异性全纤维素褶皱水凝胶的可视化构筑策略研究

中国化学会第一届全国纤维素学术研讨会

作者：邹捷李绮华于晖叶冬冬五邑大学纺织材料与工程学院

基于生物质资源构筑褶皱水凝胶有望成为潜在应用生物材料。然而,开发一种简便策略,构筑结构可定制、力学性能优异、生物相容性好、具有高定向纳米结构和可控间隔的褶皱水凝胶对于生物相关的应用至关重要,但仍然是一个挑战。本工作利用... 详细信息

基于生物质资源构筑褶皱水凝胶有望成为潜在应用生物材料。然而,开发一种简便策略,构筑结构可定制、力学性能优异、生物相容性好、具有高定向纳米结构和可控间隔的褶皱水凝胶对于生物相关的应用至关重要,但仍然是一个挑战。本工作利用超快酸诱导的界面重构策略在碱—尿素体系中定制高取向全纤维素褶皱水凝胶。将预拉伸的碱凝胶浸泡在酸溶液中,30秒内撤去外力,渗透交联使碱凝胶产生"外强内弱"的力学失稳现象,形成褶皱结构。褶皱凝胶的间隔可通过调整预拉伸应变和酸处理时间精确调控,且该结构成功诱导细胞取向增殖。本研究为自下而上利用天然聚多糖制备生物医用水凝胶材料开辟了一条新途径,具有潜在的应用价值。

关键词： cellulose anisotropic wrinkled structure hydrogel mechanical instability

面向电池热管理的高各向异性金属木材（英文）

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面向电池热管理的高各向异性金属木材（英文）

中国稀土学会2021学术年会

作者：万佳雨南方科技大学

Composite materials with ordered microstructures often lead to enhanced functionalities that a single material can hardly achieve. Many biomaterials with unusual microstructures can be found in nature;among them, many possess anisotropic and even directional physical and chemical properties. With inspiration from nature, artificial composite materials can be rationally designed to achieve this anisotropic behavior with desired properties. Here, a metallic wood with metal continuously filling the wood vessels is developed, which demonstrates excellent anisotropic electrical, thermal, and mechanical properties. The well-aligned metal rods are confined and separated by the wood vessels, which deliver directional electron transport parallel to the alignment direction. Thus, the novel metallic wood composite boasts an extraordinary anisotropic electrical conductivity(σ||/σ⊥) in the order of 10 E11, and anisotropic thermal conductivity(κ|/κ⊥) of 18. These values exceed the highest reported values in existing anisotropic composite materials. The anisotropic functionality of the metallic wood enables it to be used for thermal management applications, such as thermal insulation and thermal dissipation in battery packs. The highly anisotropic metallic wood serves as an example for further anisotropic materials design;other composite materials with different bio-templates/hosts and fillers with rare earth metals may achieve even higher anisotropic ratios, allowing them to be implemented in a variety of applica

关键词： Metal-Wood Composite anisotropic Thermal Management

中国科学院声学研究所东海研究站成功举办2016“相约东海”系列学术报告会

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声学技术 2016年第3期35卷 259-259页

2016年5月13日上午,中国科学院声学研究所东海研究站成功举办了2016＂相约东海＂系列学术报告会。胡长青研究员、向大威研究员及在站职工、学生共计20余人参加了本次会议。本次＂相约东海＂系列学术交流会特邀俄罗斯科学院大气物理研究... 详细信息

2016年5月13日上午,中国科学院声学研究所东海研究站成功举办了2016＂相约东海＂系列学术报告会。胡长青研究员、向大威研究员及在站职工、学生共计20余人参加了本次会议。本次＂相约东海＂系列学术交流会特邀俄罗斯科学院大气物理研究所Igor Chunchuzov教授出席并作题为＂Infrasound propagation in the atmosphere in a presence of anisotropic wind and temperature inhomogeneities＂的学术报告,在报告中教授就大气中次声传播的研究背景、应用领域等作了精彩讲演，并重点介绍了近些年的相关研究工作。

关键词：学术报告会向大威物理研究所学术交流 anisotropic 俄罗斯科学院交流机会应用领域声传播工作拓展

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可使微机电技术走向量产的新工作平台问世

半导体信息 2003年第6期 44-44页

作者：刘广荣

微电子机械系统,光电仪器和整合半导体相关仪器生产蚀刻系统的厂商Surface Technology Systems(简称STS),今天揭示了新的蚀刻和沉积领域工具Pro Family,其可使微机电技术加速走向量产阶段。整个设计使得微机电的制造从技术导向进而转为... 详细信息

微电子机械系统,光电仪器和整合半导体相关仪器生产蚀刻系统的厂商Surface Technology Systems(简称STS),今天揭示了新的蚀刻和沉积领域工具Pro Family,其可使微机电技术加速走向量产阶段。整个设计使得微机电的制造从技术导向进而转为生产效率的考量,而提高了生产效率,并以降低每一个晶圆的制程成本来走向量产化。新的Pro工作平台能和STS原有的Advanced Silicon Etch(ASE)技术兼容,该ASE技术能展现非等向性的(anisotropic)深硅蚀刻要求。

关键词：微机电技术微电子机械系统生产效率仪器生产技术导向量产化光电仪器 anisotropic Family 向性

维普期刊数据库评论

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维普期刊数据库

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基本电路

电子科技文摘 2003年第8期 30-30页

Y2002-63377-364 0316966组合电路与测试模式无关的输入验证=On identifyingdon’t care inputs of test patterns for combinational circuits会,英〕/Kajihara, S. & Miyase, K. //2001IEEE/ACM International Conference on Computer AidedDesign, Digest. -364～369(E)Y2002-63392-17 0316967各向异性单平面密集光子带隙地平面=Characterizationof the novel anisotropic uniplanar compact photonicband-gap graund plane(UC-PBG-GP)〔会,英〕/Caloz,

关键词：基本电路组合电路光子带隙测试模式地平面 Digest 空间光调制器容差分析谐波混频器 anisotropic