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PLASTIC DEFORMATION AND DENSIFICATION FOR SINTERED POWDER MATERIALS

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Transactions of Nonferrous Metals Society of China 1992年第4期2卷 82-87页

作者： Hua Lin zhao zhongzhi Wuhan Institute of Technology Wuhan 430070China

Equivalent yield strength of sintered powder materials is determined by experiments,and the following yield condition is constructed based on *** on uniaxial compression,and plane strain,closed die upsetting have been done using sintered copper,and the relation between the deformation resistance and compactness of the prefabricated preform is analysed.A design principle for the prefabricated preform density is proposed,and the effectiveness of shear plastic deformation to densifleation is pointed out.

关键词： sintered materials plasticity theory densification

Aggregation of Glycerol Induced by Carbon Nanotubes in Aqueous Solution and Its Influencing Factors

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Chemical Research in Chinese Universities 2015年第5期31卷 878-884页

作者： LIU Linlin zhao Dongxia YANG zhongzhi School of Chemistry and Chemical Engineering Liaoning Normal University Dalian 116029 P. R. China

Carbon nanotubes（CNTs） have received wide application and investigation because of their unique electronic, chemical and mechanical properties. But the self-aggregation of CNTs limits their practical application and study. In order to disperse CNTs effectively, polymers, such as polyglycerol and its derivatives, are adopted as dispersants in view of their strong interaction with CNTs. In order to understand the interaction between CNTs and glycerol in water in detail, a series of simulations has been conducted to investigate the interaction between them and analyze the influences of CNTs diameter and temperature. All the analyses indicate that the glycerol molecules are prone to aggregate around CNTs with the addition of CNTs. This is mainly due to hydrophobic interaction. It is confirmed that this aggregation is influenced by CNTs diameter and the temperature to some degree. This work will establish the basis for the exploration of polyglycerol and its derivatives interacting with CNTs and provide an invaluable guide to seek for emergent dispersants for CNTs.

关键词： Single-walled carbon nanotube(SWCNT) for chemical simulation Molecular dynamics simulation Glycerol Spatial distribution function Groningen machine

SLIP LINE METHOD FOR SINTERED POWDER MATERIALS UNDER CONDITION OF AXIAL SYMMETRY DEFORMATION

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中国有色金属学会会刊：英文版 1993年第3期3卷 81-87页

作者： zhao, zhongzhi Hua, Lin Wuhan Institute of Technology, Wuhan 430070, China

Slip line method for sintered powder materials under condition of axial symmetry is proposed based on the simplified yield condition of sintered powder materials and Haar-von Karman perfect plastic criterion. The equations of slip line and stress along slip line are derived, and numerical solutions are given. Deformation load in closed die upsetting of sintered copper cylinder is calculated by slip line method, and theoretical solutions are compared with experimental results.

关键词： sintered powder material axial symmetry deformation slip line method

Theory on the molecular characteristic contour (II)——Molecular intrinsic characteristic contours of several typical organic molecules

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Science China Chemistry 2005年第2期48卷 89-100页

作者： GONG Lidong, zhao Dongxia & YANG zhongzhi Department of Chemistry, Liaoning Normal University, Dalian 116029, China Correspondence should be addressed to Yang zhongzhi (email: zzyang@***) Department of Chemistry Liaoning Normal University Dalian China

The molecular intrinsic characteristic contour (MICC) is defined based on the clas-sical turning point of electron movement in a molecule. Three typical organic molecules, i.e. methane, methanol and formic acid, were employed as examples for detailed introduction of our method. Investigations on the cross-sections of MICC provide important information about atomic size changing in the process of forming molecules. The electron density distributions on the MICCs of these molecules were calculated and shown for the first time. Results showed that the electron density distribution on the MICC correlates closely with molecular chemical properties, and it provides a new insight into molecular boundary.

关键词： molecular intrinsic characteristic contour (MICC) potential acting on an electron in a molecule electron density organic molecules ab initio method.

Theory on the molecular characteristic contour (Ⅱ)——Molecular intrinsic characteristic contours of several typical organic molecules

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Science China Chemistry 2005年第2期48卷 89-100页

作者： GONG Lidong zhao Dongxia YANG zhongzhi Department of Chemistry Liaoning Normal University Dalian 116029 China Department of Chemistry Liaoning Normal University Dalian 116029 China Department of Chemistry Liaoning Normal University Dalian 116029 China

关键词： molecular intrinsic characteristic contour (MICC), potential acting on an electron in a molecule, electron density, organic molecules, ab initio method.

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《反恐怖主义法》与反恐刑法衔接不足之探讨

法学杂志 2017年第2期38卷 1-10页

作者：赵秉志牛忠志北京师范大学刑事法律科学研究院北京100875 山东科技大学法学院山东青岛266590

《反恐怖主义法》与反恐刑法二者在协调上存在较大的问题。《反恐怖主义法》第3条使用的"恐怖主义"一词限制了刑法的调整范围,因为刑法以行为为处罚对象,建议以刑法规范中的"恐怖行为"取而代之。《反恐怖主义法》第1条将"国家安全"纳入... 详细信息

《反恐怖主义法》与反恐刑法二者在协调上存在较大的问题。《反恐怖主义法》第3条使用的"恐怖主义"一词限制了刑法的调整范围,因为刑法以行为为处罚对象,建议以刑法规范中的"恐怖行为"取而代之。《反恐怖主义法》第1条将"国家安全"纳入了恐怖活动犯罪的侵犯客体,从立法的目的在于"维护公共安全"出发,建议删除《反恐怖主义法》第1条中的"国家安全",或者在刑法中增加"危害行为既构成恐怖活动犯罪,又构成其他犯罪的,依照刑法关于惩治恐怖活动犯罪的规定定罪处罚"的规定。《反恐怖主义法》对"恐怖主义""恐怖活动""恐怖活动组织""恐怖活动人员""恐怖事件"等术语的界定与刑法不一致,应该澄清。《反恐怖主义法》中的违法行为与反恐刑法中的恐怖活动犯罪界限模糊,应通过情节规定加以区分。《反恐怖主义法》与刑法中关于管辖权的规定虽然不一致,但是从刑法的基本法定位以及执法的可能性出发,应该认为前者并没有对后者的规定进行实质性修改。

关键词：反恐怖主义法反恐刑法立法目的极端主义刑事管辖权

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轧辊变形对环件精度的影响及其补偿

锻压技术 1999年第2期24卷 39-41页

作者：华林赵仲治武汉汽车工业大学

分析了环件轧制中轧辊变形及其对环件精度的影响规律，提出了补偿轧辊变形改善环件精度的两种方法，并用于汽车齿轮锻件轧制生产。

关键词：环件轧制尺寸精度精度补偿轧辊设计轧辊变形

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可压缩烧结材料滑移线场性质与构造

上海力学 1994年第1期15卷 27-36页

作者：华林赵仲治武汉工学院

本文简要介绍了可压缩烧结材料平面应变的滑移线理论,导出了其滑移线场的几个基本性质,并与致密材料滑移线场作了比较。以一个滑移线场构造为例,说明了某些性质的应用。

关键词：滑移线场烧结材料材料力学

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大豆灰斑病预防措施

现代农业研究 2018年第1期24卷 117-118页

作者：赵忠志黑龙江省拜泉县三道镇人民政府农业站

大豆灰斑病作为主要大豆作物的重要病害之一, 主要起源于我国黑龙江省地区, 对我国的大豆产量和大豆质量都产生了严重影响.东北平原地区的气候条件适合大豆灰斑病的病原的萌发和发展, 其中主要的原因就是温度和适度.大豆灰斑病有明确的... 详细信息

大豆灰斑病作为主要大豆作物的重要病害之一, 主要起源于我国黑龙江省地区, 对我国的大豆产量和大豆质量都产生了严重影响.东北平原地区的气候条件适合大豆灰斑病的病原的萌发和发展, 其中主要的原因就是温度和适度.大豆灰斑病有明确的发病的规律和明显的病状, 因此大豆灰斑病的病原体作用大豆作物的一系列原因受到了广泛的关注, 本文针对大豆灰斑病发生的各种原因进行详细的分析, 以此得到一些有效的大豆灰斑病防治措施.

关键词：大豆灰斑病各种原因防治措施