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XML-based Data Processing in Network Supported Collaborative Design

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International Journal of Automation and computing 2010年第3期7卷 330-335页

作者： Qi wang zhong-Wei Ren zhong-Feng Guo School of Mechanical Engineering Shenyang University of Technology Shenyang 110870 PRC

In the course of network supported collaborative design, the data processing plays a very vital role. Much effort has been spent in this area, and many kinds of approaches have been proposed. Based on the correlative materials, this paper presents extensible markup language （XML） based strategy for several important problems of data processing in network supported collaborative design, such as the representation of standard for the exchange of product model data （STEP） with XML in the product information expression and the management of XML documents using relational database. The paper gives a detailed exposition on how to clarify the mapping between XML structure and the relationship database structure and how XML-QL queries can be translated into structured query language （SQL） queries. Finally, the structure of data processing system based on XML is presented.

关键词： Extensible markup language (XML) network supported collaborative design standard for the exchange of product model data (STEP) data analysis data processing relational database

Effect of electropulsing on anisotropy behaviour of cold-rolled commercially pure titanium sheet

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Transactions of Nonferrous Metals Society of China 2009年第S02期19卷 409-413页

作者： wang zhong-jin SONG Hui School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China

The specimens cut from the cold-rolled pure titanium sheet at 0°,45°and 90°to the rolling direction were treated by high density electropulsing(maximum current density J=(7.22-7.96)×10^(3)A/mm^(2),pulse period t_(p)=110μs).The mechanical properties and microstructures of the cold-rolled,electropulsed and conventional annealed commercially pure titanium sheet were examined by using uniaxial tension test machine and optical microscope(OM),*** results show that the deformation behavior of the electropulsed pure titanium sheet is significantly different from that of conventional annealed pure titanium *** difference of the mechanical properties between the 0°,45°and 90°direction specimens is almost *** is mainly due to the increase in dislocation mobility and formation of lamellar microstructure after the electropulsing.

关键词： commercially pure titanium anisotropy lamellar microstructure electropulsing treatment

Cobalt-Catalyzed C-H Allylation of Arenes with Allylic Amines

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Chinese Journal of Chemistry 2021年第5期39卷 1205-1210页

作者： Rui Yan Hang Yu zhong-Xia wang CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry University of Science and Technology of ChinaHefeiAnhui 230026China Colloborotive Innovation Center of Chemical Science and Engineering Tianjin 300072China

[Cp^(*)Co(CO)l_(2)]effectively catalyzes pyridyl-directed C-H allylation of arenes with allylic amines in the presence of AgOAc and CF_(3)*** reaction features ortho-position monoallylation of 2-pyridylarenes,giving the allylated arenes in moderate to high yields.A range of functional groups including OMe,Me,Ph,F,Cl,Br,CF_(3),C(0)Me,COOEt,and COOH groups are ***-idyl-directed C-H allylation of arenes were also performed under the same *** of 2-phenylpyrimidine,2-(4-methoxyphenyl)pyrimidine/and 2-(3-fluorophenyl)pyrimidine leads to a mixture of ortho-position mono-and bisallylation *** of other 2-(substituted aryl)pyrimidines resulted in ortho-position monoallylation products.

关键词： C-H activation C-N activation Homogeneous catalysis Cobalt catalysis Allylation

Improvement on application of Dancoff factor and resonance interference table

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Nuclear Science and Techniques 2016年第2期27卷 122-130页

作者： Yu Han Xiao-Feng Jiang De-zhong wang School of Nuclear Science and Engineering Shanghai Jiaotong University Shanghai 200240 China Shanghai NuStar Nuclear Power Technology Co. Ltd.Shanghai 200000 China

An improvement for application of Dancoff factor is developed. It combines Stamm'ler's two-term method for resonance integral calculation with neutron current method for Dancoff factor calculation. Stamm'ler's formulation, which is originally derived for the infinite lattice geometry, can be easily revised to contain the Dancoff factor explicitly, while the neutron current method can easily calculate the Dancoff factor for general irregular assembly geometry. For the resonance interference effects the resonance interference factor table is built in pairs of nuclides, only for the interference between 238 U and other resonance nuclides, spanning over a range of background cross-section and number density ratio of the pairing nuclides. A series of verification calculations have been carried out for problems of infinite lattice and single assembly geometry, with two or multiple resonance absorbers. For these verification calculations, our improvement on Dancoff factor application and resonance interference give good results.

关键词：共振干涉因子和应用积分计算几何形状干涉效应中子流核素

Dehydrogenation of n-butane over vanadia catalysts supported on silica gel

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Journal of Natural Gas Chemistry 2009年第1期18卷 88-93页

作者： Yuebing Xu Jiangyin Lu Mei zhong Jide wang Key Laboratory of Oil ＆ Gas Fine Chemicals Ministry of Education Xinjiang University 14# Shengli Road Urumqi 830046 Xinjiang China

VOx/SiO2 catalysts prepared by impregnation method were used for catalytic dehydrogenation of n-butane to butenes and characterized by X-ray diffraction, FT-IR, UV-vis, Raman, and BET measurements. The effects of VOx loading and the reaction temperature on the VOx/SiO2 catalysts and their catalytic performances for the dehydrogenation of n-butane were studied. When the VOx loading was 12% g/gcat and reaction temperature was between 590 ℃ and 600℃, n-butane conversion and butenes yields reached the highest value under H2 flux of 10 ml/min and n-butane flux of 10 ml/min. Product distribution, such as the ratio of 2-butene to 1-butene and the ratio of cis-2-butene to trans-2-butene, was mainly influenced by the reaction temperature.

关键词： n-butane catalytic dehydrogenation butene VOx supported SiO2

Extended Nernst–Planck Equation Incorporating Partial Dehydration Effect

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Chinese Physics Letters 2020年第9期37卷 30-35页

作者： zhong wang Zhiyang Yuan Feng Liu State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Center for Quantitative Biology Peking UniversityBeijing 100871China

Novel ionic transporting phenomena emerge as nanostructures approach the molecular *** the sub-2 nm scale,widely used continuum equations,such as the Nernst-Planck equation,break ***,we extend the Nernst-Planck equation by adding a partial dehydration *** model agrees with the reported ion fluxes through graphene oxide laminates with sub-2 nm interlayer spacing,outperforming previous *** also predict that the selectivity sequences of alkali metal ions depend on the geometries of the *** model opens a new avenue for the investigation of the underlying mechanisms in nanofluidics at the sub-2 nm scale.

关键词： effect. Nernst hydration

Experimental Research of Surface Roughness Effects on Highly-Loaded Compressor Cascade Aerodynamics

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Journal of Thermal Science 2014年第4期23卷 307-314页

作者： CHEN Shao-wen XU Hao wang Song-tao wang zhong-qi Energy Science and Engineering School Harbin Institute of Technology

Aircraft engines deteriorate during continuous operation under the action of external factors including fouling, corrosion, and abrasion. The increased surface roughness of compressor passage walls limits airflow and leads to flow loss. However, the partial increase of roughness may also restrain flow separation and reduce flow loss. It is necessary to explore methods that will lower compressor deterioration, thereby improving the overall performance. The experimental research on the effects of surface roughness on highly loaded compressor cascade aerodynamics has been conducted in a low-speed linear cascade wind tunnel. The different levels of roughness are arranged on the suction surface and pressure surface, respectively. Ink-trace flow visualization has been used to measure the flow field on the walls of cascades, and a five-hole probe has been traversed across one pitch at the outlet. By comparing the total pressure loss coefficient, the distributions of the secondary-flow speed vector, and flow fields of various cases, the effects of surface roughness on the aerodynamics of a highly loaded compressor cascade are analyzed and discussed. The results show that adding surface roughness on the suction surface and pressure surface make the loss decrease in most cases. Increasing the surface roughness on the suction surface causes reduced flow speed near the blade, which helps to decrease mixing loss at the cascades outlet. Meanwhile, adding surface roughness on the suction surface restrains flow separation, leading to less flow loss. Various levels of surface roughness mostly weaken the flow turning capacity to various degrees, except in specific cases.

关键词： Highly loaded compressor linear cascades surface roughness aerodynamic performance experimental research

Direct numerical simulation of the viscoelastic channel flow using Giesekus model with variable parameters

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Journal of Hydrodynamics 2019年第2期31卷 326-332页

作者： Wei-guo Gu Yu Li De-zhong wang School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

The paper presents a direct numerical simulation(DNS)for the drag-reducing channel flow using the Giesekus model with variable *** is assumed that the relaxation time in the constitutive equation is varied depending on the local shear *** maximal drag reduction rate is obtained when variable parameters are applied in the Giesekus model at a high Weissenberg *** Reynolds shear stress is reduced when the Weissenberg number *** this case,the turbulence generation and transportation are further weakened and increasingly approach to the values in the experiments.

关键词： Viscoelastic fluid Giesekus model direct numerical simulation(DNS) Variable parameters

Multi-objective resource optimization scheduling based on iterative double auction in cloud manufacturing

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Advances in Manufacturing 2019年第4期7卷 374-388页

作者： Zhao-Hui Liu zhong-Jie wang Chen Yang College of Electronics and Information Engineering Tongji UniversityShanghai 201804People's Republic of China College of Engineering Science and Technology Shanghai Ocean UniversityShanghai 201306People's Republic of China

Cloud manufacturing is a new kind of networked manufacturing *** this model,manufacturing resources are organized and used on demand as marketoriented *** services are highly uncertain and focus on *** information between service demanders and service providers is usually *** challenges make the resource scheduling more *** this study,an iterative double auction mechanism is proposed based on game theory to balance the individual *** demanders and providers act as buyers and sellers in the *** demanders offer a price according to the budget,the delivery time,preference,and the process of ***,resource providers ask for a price according to the cost,maximum expected profit,optimal reservation price,and the process of auction.A honest quotation strategy is dominant for a participant in the *** mechanism is capable of guaranteeing the economic benefits among different participants in the market with incomplete ***,the mechanism is helpful for preventing harmful market behaviors such as speculation,cheating,*** on the iterative double auction mechanism,manufacturing resources are optimally allocated to users with consideration of multiple *** auction mechanism is also incentive compatibility.

关键词： Cloud manufacturing Resource scheduling Multi-objective optimization Iterative double auction Incentive compatibility