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人力资源会计基本概念的理论分析

武汉市经济管理干部学院学报 2000年第3期14卷 16-20页

作者：刘兴斌赵清侯力纲武汉大学武汉430072 中国水利水电工程一局长春130000

人力资源会计的基本概念包括人力资源、人力资本、人力资产、人力资源会计等内容 ,对其进行理论分析十分必要。

关键词：人力资源人力资本人力资产人力资源会计

硫代硫酸钠对顺铂所致肾毒性中和作用的实验研究

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中国职业医学 2001年第5期28卷 29-30页

作者：刘桂香李清钊姚林蔚德敏华北煤炭医学院预防医学系河北唐山063000 唐山卫校附属医院 063000

目的　进一步探讨硫代硫酸钠 (STS)对顺铂 (DDP)所致肾毒性的中和作用的实验研究。方法　小鼠随机分为阴性对照组 (生理盐水组 )、阳性对照组 (DDP组 )、DDP +STS组 ,各组均每隔 2d给药一次 ,3 3d后观察肾功能 ,即尿素氮(BUN)和肌酐 (Cr... 详细信息

目的　进一步探讨硫代硫酸钠 (STS)对顺铂 (DDP)所致肾毒性的中和作用的实验研究。方法　小鼠随机分为阴性对照组 (生理盐水组 )、阳性对照组 (DDP组 )、DDP +STS组 ,各组均每隔 2d给药一次 ,3 3d后观察肾功能 ,即尿素氮(BUN)和肌酐 (Cr)的变化 ,超氧化物歧化酶 (SOD)和谷胱甘肽过氧化物酶 (GSH -Px)活性改变 ,肾脏病理。结果　DDP组血清中BUN升高与生理盐水组比较差异有显著性 ;加入STS以后血清中BUN的值与DDP组比较差异有显著性。Cr结果显示 :DDP组与Cr值比较差异有显著性。SOD和GSH -Px结果显示 :DDP组、DDP +STS组与生理盐水组比较差异有显著性。肾脏病理组织学结果表明 :STS比较明显减轻了DDP所致的肾毒性 ,其中BUN、Cr和SOD、GSH -Px发生改变。

关键词：硫代硫酸钠顺铂肾毒性药理学

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三硼酸锂晶体中负晶的观察

物理学报 1993年第12期42卷 1950-1955页

作者：唐鼎元林翔赵庆兰曾文荣谭奇光毛宏伟仲维卓华素坤中国科学院福建物质结构研究所福州350002 中国科学院上海硅酸盐研究所上海201800

采用光学显微镜、X射线形貌术以及激光散射层析等方法,对新型非线性光学材料三硼酸锂晶体中的一种特殊的包裹体——负晶进行观测和研究,揭示了它的本质和组成,探讨了它的形成机理。

关键词：三硼酸锂负晶晶体缺隐包裹体

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新建构主义视角下现代学徒制教学模式探究

职业教育研究 2017年第9期 63-67页

作者：陈和祥董海青赵春宝南京信息职业技术学院江苏南京210046

现代学徒制是当前国际公认的职业教育发展趋势和主导模式。新建构主义是信息时代背景下新兴的学习理论,其核心观点为"学习就是建构,建构蕴含创新"。因此,应在分析新建构主义理论知识观、学习观和教学观的基础上,从建立联合教研机构、创... 详细信息

现代学徒制是当前国际公认的职业教育发展趋势和主导模式。新建构主义是信息时代背景下新兴的学习理论,其核心观点为"学习就是建构,建构蕴含创新"。因此,应在分析新建构主义理论知识观、学习观和教学观的基础上,从建立联合教研机构、创新教学过程设计、完善教学评价制度等三个方面构建现代学徒制教学模式,激励学徒(学生)实现知识创新与技能提升,最终形成自己的个性化知识与能力体系。

关键词：新建构主义现代学徒制教学模式

Synthesis and Structural Study of a N-Heterocyclic Carbene Trinuclear Silver(Ⅰ)Complex

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Chinese Journal of Structural Chemistry 2016年第2期35卷 313-318页

作者： LIU Jun HUO Ran WEI qing zhao Zhi-xiang LIU qing-xiang Tianjin Key Laboratory of Structure and Performance for Functional Molecules Key Laboratory of Inorganic-organic Hybrid Functional Material ChemistryMinistry of Education College of ChemistryTianjin Normal UniversityTianjin 300387China

The bis-benzimidazolium salt bis[2-（N-ethylbenzimidazoliumyl）ethyl]amine hexafluorophosphate（LH2·（PF6）2） and its N-heterocyclic carbene silver（Ⅰ） complex[L2Ag3]（PF6）3（1）have been prepared and *** complex 1,a trinuclear silver（Ⅰ） architecture is formed by two tridentate ligands and three silver（I） atoms,in which one 12- and two 7-membered rings are *** the crystal packing of 1,1D chain and 2D supramolecular layer are formed via intermolecular weak interactions,including π…π interactions and C-H…π ***,the fluorescence emission spectra of LH2-（PF6）2 and 1 are described.

关键词： carbene silver(I) complex bis-benzimidazolium salt

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圆孔对厚圆板固有频率影响的研究

太原重型机械学院学报 2003年第4期24卷 316-319页

作者：梁清香赵坚林金保太原重型机械学院太原030024

首先由MARC软件对厚圆板试件进行了模态分析,得出了前四阶固有频率的大致范围,根据该值确定实验中截止频率的取值;接着由敲击法测量了该试件的固有频率,并根据实验结果确定了有限元分析的单元类型与网格布局;最后采用该单元类型与网格... 详细信息

首先由MARC软件对厚圆板试件进行了模态分析,得出了前四阶固有频率的大致范围,根据该值确定实验中截止频率的取值;接着由敲击法测量了该试件的固有频率,并根据实验结果确定了有限元分析的单元类型与网格布局;最后采用该单元类型与网格布局对等厚厚圆板进行了系列计算,得出了圆孔大小、位置对厚圆板固有频率的影响规律,为挖孔减重提供科学的理论依据。

关键词：圆孔厚圆板固有频率有限元计算模态分析

Pinacol Coupling Reactions Catalyzed by Active Zinc

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Chinese Chemical Letters 2005年第11期16卷 1459-1462页

作者： Hui zhao Wei DENG qing xiang GUO Department of Chemistry University of Science and Technology of China Hefei 230026

Pinacol coupling reactions catalyzed by active zinc revealed high activity and extensive suitability. The efficiency of the reaction was improved apparently owing to decreasing reductive potential of zinc. In addition, the results indicated that the zinc activity has a direct relation to the coupling reactivity compared to untreated zinc or other general active zinc.

关键词： Pinacol coupling reaction active zinc carbonyl compounds electron transfer.

Effect of gas composition on nitric oxide removal from simulated flue gas with DBD-NPC method

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Chinese Journal of Chemical Engineering 2019年第12期27卷 3017-3026页

作者： Lan Yang xiang Zhang qing Kan Binran zhao Xiaoxun Ma School of Chemical Engineering Northwest UniversityXi'an 710069China Chemical Engineering Research Center of the Ministry of Education(MOE)for Advanced Use Technology of Shanbei Energy Xi'an 710069China Shaanxi Research Center of Engineering Technology for Clean Coal Conversion Xi'an 710069China International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST)for Clean Utilization of Hydrocarbon Resources Xi'an 710069China Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi Xi'an 710069China

A new method for nitric oxide(NO)removal was developed by combining dielectric barrier discharge(DBD)and negative pulse corona(NPC).The effects of gas composition(O2,CO2,and H2 O)on NO removal were investigated with this method,and the effect of alcohols(methanol and ethanol)addition on NO removal was also investigated as well as the reaction mechanisms to enhance the NO removal *** experimental results showed that O2,CO2,and H2 O had obvious inhibition effects on NO removal,and the negative effects were in the following order:O2>CO2>H2 *** addition of methanol or ethanol in the reaction system could mitigate the negative effects of O2,CO2 and H2 O on NO removal,and also eliminated the production of *** positive effect of alcohols addition with DBD-NPC denitration method was also validated in the simulated flue gas,in which the NOx(NO,NO2)was mainly converted into N2.

关键词： Dielectric barrier discharge(DBD) Corona discharge Nitric oxide Alcohols Flue gas

Physical properties of vortex and applicability of different vortex identification methods

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Journal of Hydrodynamics 2020年第5期32卷 984-996页

作者： Pei-qing Liu Yue zhao Qiu-lin Qu Tian-xiang Hu Lu Shijia Laboratory Beihang UniversityBeijing 100191China

For correct identification of vortices,this paper first analyzes the properties of the rigid vortex core and its induced flow field given by the Rankine vortex model,and it is concluded that the concentrated vortex structure should consist of the vortex core and the induced flow field(the potential flow region with a weak shear layer).Then the vortex structure is analyzed by using the Oseen vortex *** with the Rankine vortex,the Oseen vortex is a concentrated vortex with a deformed vortex *** vortex structure consists of the vortex core region,the transition region and the shear layer region(or the potential flow region).The transition region reflects the properties of the resultant vorticity of the same magnitude and the resultant deformation rate of the shear layer,and the transition region also determines the boundary of the vortex ***,the evolution of leading-edge vortices of the double-delta wing is numerically *** with different vortex identification methods,the shape and the properties of the leading-edge vortices identified by each method are analyzed and *** is found that in the vorticity concentration region,the vortices obtained by using ω,λ2,Ω criteria and Q criteria are basically identical when appropriate threshold values are ***,in the region where the vorticity is dispersed,due to the influence of the flow viscous effect and the adverse pressure gradient,the results obtained by different vortex identification methods can be quite different,as well as the related physical properties,which need to be further studied.

关键词： Vortex identification methods Rankine vortex model Oseen vortex model leading-edge vortex double-delta wing