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Vector Loop Algebra and Its Applications to Tu Hierarchy

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Communications in Theoretical Physics 2007年第5期47卷 773-776页

作者： wang Yan College of Information Science and Engineering Shandong University of Science and Technology Qingdao 266510 China Department of Mathematics and Systems Science Taishan University Taian 271021 China

A vector loop algebra and its extended loop algebra are proposed, which are devoted to obtaining the Tu hierarchy. By making use of the extended trace identity, the Harniltonian structure of the Tu hierarchy is constr... 详细信息

关键词： vector loop algebra Hamiltonian structure quadratic identity

Improved Method of Behavior Type Analysis

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Chinese Physics Letters 1994年第7期11卷 435-438页

作者： wang Yingzong Department of Physics Shaanxi Normal UniversityXi’an 710062

Zhou-Goovaerts-Schoemaker’s behavior type method for determining the representative mode of defect vibration in cubic crystal is improved in this *** the optimum method the combination of the random operator T with the orienting operator C_(2)[100]plays a central *** relations between the representative modes and the distribution of the measurable polarized Raman intensities in normal Raman experiment are derived and listed as a table which can make the experiment design and analysis become easier.

关键词： operator measurable listed

Photocatalytic degradation of L- acid by TiO_2 supported on the activated carbon

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Journal of Environmental Sciences 2006年第3期18卷 562-566页

作者： wang Yu-ping wang Lian-jun PENG Pan-ying School of Chemical Engineering Nanjing University of Science and Technology Nanjing 210094China School of Chemistry and Environmental Science Nanjing Normal University Nanjing 210097 China

TiO2 sol was prepared by sol-gel technique with tetrabutyl titanate as precursor. Supported TiO2 catalysts on activated carbon were prepared by soak and sintering method. The aggregation of nano-TiO2 particles can be effectively suppressed by added polyethylene glycol （PEG） as a surface modifier. The average particle diameter of TiO2, specific surface area and absorbability of catalyst can be modified. Based on characteristics of the TiO2 photocatalyst with XRD, specific surface area, adsorption valves of methylene blue and the amount of TiO2 supported on the activated carbon, the photocatalytic degradation of L-acid was studied. The effect of the factors, such as pH of the solution, the initial concentration of L-acid on the photocatalytic degradation of L-acid, were studied also. It was found that when the pH of the solution is 1.95, the amount of photocatalyst is 0.5 g, the concentration of the L-acid solution is 1.34×10^3 mol/L and the illumination time is 7 h, the photocatalytic degradation efficiency of L-acid can reach 89,88%, The catalyst was reused 6 times and its degradation efficiency hardly changed.

关键词： L-acid activated carbon supported TiO2 photodegradation

Rapidity Distributions in Proton-Proton Collisions at 40 TeV

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Chinese Physics Letters 1991年第4期8卷 165-167页

作者： wang Zhengzhi Department of Optics Shandong UniversityJinan 250100

The derivative of natural logarithms of the average number of negative charged mesons with respect to the rapidity and the multiplicity moments were calculated,assuming that P(n,k)is probability and P(n,1)is negative ... 详细信息

关键词： logarithm Collisions meson

Effect of Extra-Framework Titanium in TS-1 on the Ammoximation of Cyclohexanone

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Transactions of Tianjin University 2017年第3期23卷 230-236页

作者： Yaquan wang Shuhai wang Teng Zhang Jiaxin Ye Xiao wang Dali wang Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Tianjin Synthetic Fiber Company Tianjin 300271China

Titanium silicalite (TS-1) without and with extra-framework titanium have been prepared and TiO2is also prepared under the same conditions. All the samples are characterized with XRD, FT-IR, and UV–Vis. The effects of extra-framework titanium in TS-1 on the ammoximation of cyclohexanone have been studied in a continuous slurry reactor. The characterization results reveal that the extra-framework titanium exists as anatase. The catalytic evaluation results show that the anatase has a positive effect on the ammoximation of cyclohexanone by extending the catalytic life because it also exhibits some activity, while the conversion of cyclohexanone and the selectivity to cyclohexanone oxime are not influenced. The anatase TiO2does not catalyze H2O2decomposition appreciably compared with TS-1 without extra-framework titanium. The results are very useful in guiding the TS-1 production. © 2017, Tianjin University and Springer-Verlag Berlin Heidelberg.

关键词： Network function virtualization Titanium dioxide

Atomic-scale structure and nonlinear optical absorption of two-dimensional GeS

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Journal of Materials Science & Technology 2024年第20期187卷 188-194页

作者： Jijun Zhang Rong Sun Yanqi Ge Jingyi wang Zexuan wang Lijian Meng Francis Leonard Deepak Min Zhang Peng Yin Faliang Cheng Zhiming wang Zhongchang wang Guangdong Engineering and Technology Research Centre for Advanced Nanomaterials School of Environment and Civil EngineeringDongguan University of TechnologyDongguan 523808China International Iberian Nanotechnology Laboratory(INL) Avenida Mestre JoséVeigaBraga 4715-330Portugal Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China CIETI ISEPPolytechnic of PortoRua Dr.António Bernardino de AlmeidaPorto 4249-015Portugal School of Information and Communication National University of Defence TechnologyWuhan 430035China

*** Layered van der Waals materials have emerged as a new class of materials with fascinating properties for versatile potential ap-plications owing to their unique atomic structures and ultrathin thickness[1-7].As a subcategory of layered van der Waals mate-rials,group IV monochalcogenides,including Ge(S,Se,Te)and Sn(S,Se,Te),possess similar atomic structures and comparable elec-tronic structures,rendering them becoming promising alternatives for applications in thermoelectric[8],ferroelectric[9-11],photo-catalytic[12],optoelectronic[13-16],and memory devices[17-19].

关键词： rendering nonlinear versatile

Quantum Zeno Effect Induced by Quantum Measurement of Momentum of Atomic Mass Center

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Chinese Physics Letters 1995年第12期12卷 728-730页

作者： wang Xiaoguang Institute of Theoretical Physics Northeastern Normal UniversityChangchun 130024

In this article,we obtained the factorization form of the evolution operator corresponding to the Hamiltonian which describes the interaction of a two-level atom with one propagating mode in an optical ring cavity and the exact solution is followed.A new scheme for realizing quantum Zeno effect is proposed by measuring the atomic momentum(external state)frequently to freeze the atomic energy state(internal state)in its initial energy state.

关键词： state. momentum exact

A cluster-plus-glue-atom composition design approach designated for multi-principal element alloys

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Rare Metals 2022年第11期41卷 3839-3849页

作者： Xuan Liu Hui-Bin Ke Liang wang Yao-Jian Liang Lin-Jing wang Ben-Peng wang Lu wang Qun-Bo Fan Yun-Fei Xue School of Materials Science and Engineering Beijing Institute of TechnologyBeijing100081China Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing100081China

Multi-principal element alloys(MPEAs)have shown extraordinary properties in different ***,the composition design of MPEAs is still challenging due to the complicated interactions among principal elements(PEs),and even more challenging with precipitates *** can be either beneficial or detrimental in alloys,thus it is important to control precipitates formation on purpose during alloy *** this work,cluster-plus-glue-atom model(CGM)composition design method which is usually used to describe short-range order in traditional alloys has been successfully extended to MPEAs for precipitation *** key challenge of extending CGM to MPEAs is the determination of center atom since there are no solvent or solute in *** has found that the element type of center atom was related not only with chemical affinity,but also with atomic volume difference in MPEAs,which has inevitable effect on atomic *** on experimental data of MPEAs with precipitates,it was found that elements with either stronger chemical affinity or larger volume difference with other PEs would occupy the center site of ***,a cluster index(P_(C)),which considers both chemical affinity and atomic volume factors,was proposed to assist the determination of center atom in *** on the approach,a solid-solution Zr-Ti-V-Nb-Al BCC alloy was obtained by inhibiting the precipitation,while precipitation-strengthened Al-Cr-FeNi-V FCC alloy and Al-Co-Cr-Fe-Ni BCC alloy were designed by promoting the *** experimental results demonstrated that the approach could provide a relatively simple and accurate predication of precipitation and the compositions of precipitations were in line with PEs in cluster in *** research may open an effective way for composition design of MPEAs with desired phase structure.

关键词： Multi-principal element alloy(MPEA) Composition design Phase structure Cluster-plus-glue-atom model(CGM)

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“界”的范畴意义与工具价值

哲学研究 2021年第11期 66-76页

作者：刘洪一深圳大学饶宗颐文化研究院

"界"的汉字本义是对空间限度的标识界定,在东西方思想认知中具有一种普遍性的范畴意义和逻辑工具价值。"界"不仅是儒释道和希腊、希伯来思想的逻辑起点与初始范畴,还对其他范畴的构制和意义的诞生发挥了关键作用。基于"界"概念所建构的... 详细信息

"界"的汉字本义是对空间限度的标识界定,在东西方思想认知中具有一种普遍性的范畴意义和逻辑工具价值。"界"不仅是儒释道和希腊、希伯来思想的逻辑起点与初始范畴,还对其他范畴的构制和意义的诞生发挥了关键作用。基于"界"概念所建构的有界认知、无界认知、合界认知、变界认知的范式体系,形成了一个圆融自洽的认知机制,以此达致对世界万物之绝对性、相对性、特定性和不定性的综合认知。界的根基性特征揭示了东西方哲学在逻辑底层的根本会通,原理性特征呈现了界的普适基准工具功用,融通性特征彰显了一种以华夏运思为机理基轴,以东西融通为辐辏机制,以人类普适通用为价值指归的思想认知。围绕"界"展开的运思既是东西方思想融通的创造,也是中国话语的一种本质构建。

关键词：界范畴工具