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全螺栓装配式钢框架外挂轻质墙板有限元分析

计算力学学报 2024年第3期41卷 474-482页

作者：樊敏郭宏超李慎王振山王华强西安理工大学土木建筑工程学院西安710048

基于一体化轻质保温装饰墙板全螺栓装配式钢框架的抗震性能试验研究,本文采用商业有限元软件ABAQUS对结构进行了精细化非线性有限元分析。研究了结构的滞回性能、结构能力、应力分布以及失效模式等,提出了在柱脚和龙骨间设置加劲肋的改... 详细信息

基于一体化轻质保温装饰墙板全螺栓装配式钢框架的抗震性能试验研究,本文采用商业有限元软件ABAQUS对结构进行了精细化非线性有限元分析。研究了结构的滞回性能、结构能力、应力分布以及失效模式等,提出了在柱脚和龙骨间设置加劲肋的改进设计方案,并对诸如顶底L型件水平板和竖向板螺栓数量、加劲肋形式、结构高跨比以及轴压比等关键设计参数进行了拓展分析。结果表明,采用本文有限元建模方法能够精准地模拟试验的滞回性能,极限承载力与试验最大差值为8.86%,模型失效模式及应力分布与试验现象高度吻合;柱脚和龙骨间加劲肋使柱脚内外翼缘协同变形,减小翼缘局部屈曲,避免龙骨连接处焊缝的应力集中,显著提升了结构承载力;通过优化顶底L型件的螺栓数量和加劲肋形式等设计参数,可进一步提升结构能力;实际工程中应合理控制结构高跨比和轴压比,以满足抗震设防要求。

关键词：钢框架全螺栓装配轻质墙板滞回性能有限元分析

The Finite Temperature Effect on Josephson Junction between an s-Wave Superconductor and an s±-Wave Superconductor

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Chinese Physics Letters 2013年第7期30卷 213-216页

作者： wang Da LU Hong-Yan wang qiang-hua National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093 Department of Physics University of CaliforniaSan DiegoCalifornia 92093USA School of Physics and Electronic Information Huaibei Normal UniversityHuaibei 235000

We investigate a Josephson junction between a one-band and a multi-band s-wave *** the multi-band lead is an s±-wave superconductor,we find that the critical Josephson current may change its sign when the temperature *** result confirms that this is a widespread effect of the s±-wave superconductor,independent of the type of the junction,the ratios of the gaps and superconducting transition temperatures,as long as the tunneling matrix elements have suitable *** novel effect comes directly from the opposite gap *** propose that the observation of this phenomena can be used to detect the s±-wave pairing symmetry in iron-based superconductors.

关键词： Josephson superconductor Superconductor

血浆混合实验联合血栓弹力图在HBV患者临床输血中的指导价值

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医药论坛杂志 2024年第8期45卷 855-859页

作者：林炜梅书豪王化强许昌市中心医院重症医学科河南许昌461000 许昌市中心医院血液内科河南许昌461000

目的探讨血浆混合实验联合血栓弹力图(TEG)联合常规凝血实验(CCT)在乙型病毒性肝炎(HBV)患者临床输血中的指导价值。方法选取2021年3月—2023年3月许昌市中心医院重症监护室收治的40例HBV患者为研究组,根据1∶1原则,另选取本院同期40例... 详细信息

目的探讨血浆混合实验联合血栓弹力图(TEG)联合常规凝血实验(CCT)在乙型病毒性肝炎(HBV)患者临床输血中的指导价值。方法选取2021年3月—2023年3月许昌市中心医院重症监护室收治的40例HBV患者为研究组,根据1∶1原则,另选取本院同期40例健康体检者为对照组。所有受检者均进行TEG、CCT及血小板计数(PLTs)检查,比较2组TEG指标、CCT指标及PLTs结果[血液凝固时间(K)、凝血反应时间(R)、凝固角(Angle)、最大振幅(MA)、30 min内血凝块幅度减少速率(Ly30);凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、凝血酶时间(TT)、国际标准化比值(INR)、纤维蛋白降解产物(FDP)、凝血酶原活动度(PTA)、纤维蛋白原(Fig);PLTs],分析研究组TEG指标与CCT指标、PLTs相关性,比较研究组TEG指标与TCC指标、PLTs的异常率,对比纠正组与未纠正组血浆输注治疗有效率。结果研究组R、K、PT、APTT、TT、INR、FDP、Fig高于对照组,Angle、MA、CI、PTA、PLTs低于对照组(P<0.05);研究组PT、APTT、INR与K、R呈正相关,与MA呈负相关,PTA与K、R呈负相关,PTA、Fig、PLTs与MA呈正相关,INR与CI呈负相关,PTA、Fig与CI呈正相关,且INR异常率高于R异常率,PLTs异常率高于MA异常率(P<0.05);纠正组血浆输注治疗有效率高于未纠正组(P<0.05)。结论血浆混合试验联合TEG能更精确反映HBV患者凝血状态,有助于优化输血方案,指导临床合理用血,降低临床输血无效率。

关键词：血浆混合试验血栓弹力图常规凝血实验输血

Quantized bound states around a vortex in anisotropic superconductors

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Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 146-155页

作者： Ke Xiang Da wang qiang-hua wang National Laboratory of Solid State Microstructures&School of Physics Nanjing UniversityNanjing 210093China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093China

The bound states around a vortex in anisotropic superconductors is a longstanding yet important *** this work,we develop a variational theory on the basis of the Andreev approximation to obtain the energy levels and wave functions of the low-energy quantized bound states in superconductors with anisotropic pairing on arbitrary Fermi *** the case of circular Fermi surface,the effective Schr¨odinger equation yielding the bound state energies gets back to the theory proposed by Volovik and Kopnin many years *** generalization here enables us to prove the equidistant energy spectrum inside a vortex in a broader class of *** importantly,we are now able to obtain the wave functions of these bound states by projecting the quasiclassical wave function on the eigenmodes of the effective Schr¨odinger equation,going beyond the quasiclassical Eilenberger results,which,as we find,are sensitive to the scattering *** the case of isotropic Fermi surface,the spatial profile of the low-energy local density of states is dominated near the vortex center and elongates along the gap antinode directions,in addition to the ubiquitous Friedel oscillation arising from the quantum inteference neglected in the Eilenberger ***,as a consequence of the pairing anisotropy,the quantized wave functions develop a peculiar distribution of winding number,which reduces stepwise towards the vortex *** work provides a flexible way to study the vortex bound states in the future.

关键词： vortex bound state anisotropic superconductor Andreev approximation

Synthesis, Crystal Structure and Insecticidal Activities of Novel Neonicotinoid Derivatives

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Chemical Research in Chinese Universities 2010年第3期26卷 380-383页

作者： ZHAO Yu wang Gang LI Yong-qiang wang Su-hua LI Zheng-ming State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry National Pesticide Engineering Research Center（Tianjin） Nankai University Tianjin 300071 P. R. China

Ten new N-oxalyl derivatives of neonicotinoid compound were designed and synthesized. Their structures were confirmed by ^1H NMR spectra, elemental analysis and X-ray diffraction. The preliminary insecticidal activities of the new compounds were evaluated. The results of bioassays indicate that the title Compounds exhibit moderate insecticidal activities. Surprisingly, the insecticidal activity of compound 7b against bean aphids at 200 mg/kg is 100%, which is comoarable to that of the commercialized imidacloprid.

关键词： Neonicotinoid N-Oxalyl derivative Insecticidal activity Bean aphid Imidacloprid

Synthesis and biological evaluation of a new series of histone deacetylases inhibitors

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Chinese Chemical Letters 2008年第6期19卷 673-675页

作者： Jie Jiao qiang wang hua Wei Zhu Hao Fang Wen Fang Xu School of Pharmaceutical Science Shandong University Jinan 250012 China

Histone deacetylases （HDACs） play an important role in tumorigenesis. Inhibition of HDACs is considered as a potent strategy for cancer therapy. Two lead compounds （ja and jb） were found to have activities against HDACs with IC50 at about 15 μmol/L. Then a new series of hydroximic acid derivatives were designed and synthesized based on them. The HDACs activity assay in vitro found that compounds J04 and ,109 are nearly as potent as the positive control drug Zolinza.

关键词： HDACs Tumorigenesis Cancer therapy Hydroximic acid

Highly efficient oxidation of alcohols using Oxone~ as oxidant catalyzed by ruthenium complex under mild reaction conditions

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Chinese Chemical Letters 2008年第9期19卷 1031-1034页

作者： Zi qiang Lei Jian qiang wang Peng hua Yan Key Laboratory of Polymer Materials of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 China

Aromatic and alkyl alcohols were oxidized to the corresponding aldehydes or ketones at room temperature with high conversion and selectivity using Oxone （2KHSOs-KHSO4.K2SO4） as oxidant catalyzed by ruthenium complex Quin-Ru-Quin （where Quin = 8-hydroxyquinoline）. The reaction time is very short and the preparation of complex is simple.

关键词： Oxidation of alcohols Oxone Ruthenium complex

Numerical Analysis of PRISM-PY Calculations for Hard-and Soft-Core Generic Polymer Models

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Chinese Journal of Polymer Science 2024年第4期42卷 532-543页

作者： qiang wang Department of Chemical and Biological Engineering Colorado State University1370 Campus DeliveryFort CollinsCO80523-1370USA

Generic polymer models capturing the chain connectivity and excluded-volume interactions between polymer segments can be classified, according to whether or not the 3D integral of the latter diverges, into hard- and soft-core models. Taking homogeneous systems of compressible homopolymer melts (or equivalently homopolymer solutions in an implicit, good solvent) in the continuum as an example, we recently compared the correlation effects on the structural and thermodynamic properties of the hard- and soft-core models given by the polymer reference interaction site model (PRISM) theory with the Percus-Yevick (PY) closure (Polymers 2023, 15, 1180). Here we analyzed in detail the numerical errors and behavior of the interchain pair correlation functions (PCFs) given by the PRISM-PY calculations of these models using an efficient numerical approach that we proposed. Our numerical approach has the least number of independent variables to be iteratively solved, analytically treats the discontinuities caused by the non-bonded pair potential (such as that of the hard spheres) and takes only the inverse Fourier transform of the interchain indirect PCF between polymer segments (which is continuous and decays towards 0 with increasing wavenumber much faster than both the interchain direct and total PCFs), and is essential for us to accurately solve the PRISM-PY theory for chain length N as large as 106. To capture the correlation-hole effect, the real-space cut-off in the PRISM calculations should be proportional to the square root of N.

关键词： Generic polymer models Soft potentials Polymer reference interaction site model theory

Massively parallel algorithms for fully dynamic all-pairs shortest paths

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Frontiers of Computer Science 2024年第4期18卷 201-203页

作者： Chilei wang qiang-Sheng hua Hai JIN Chaodong ZHENG National Engineering Research Center for Big Data Technology and System Services Computing Technology and System LabCluster and Grid Computing LabSchool of Computer Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory for Novel Software Technology Nanjing UniversityNanjing 210023China

1 Introduction In recent years,the Massively Parallel Computation(MPC)model has gained significant ***,most of distributed and parallel graph algorithms in the MPC model are designed for static graphs[1].In fact,the graphs in the real world are constantly *** size of the real-time changes in these graphs is smaller and more *** graph algorithms[2,3]can deal with graph changes more efficiently[4]than the corresponding static graph ***,most studies on dynamic graph algorithms are limited to the single machine ***,a few parallel dynamic graph algorithms(such as the graph connectivity)in the MPC model[5]have been proposed and shown superiority over their parallel static counterparts.

关键词： dynamic shortest gained