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Thermal Entanglement of a Two-Qubit XXZ Heisenberg Chain with Dzialoshinski-Moriya Interaction

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Communications in Theoretical Physics 2009年第11期52卷 817-819页

作者： QIAN Li fang Jian-xing School of Physical Science and Technology Suzhou University Suzhou 215006 China

The effect of DziaJoshinski-Moriya （DM） interaction on thermal entanglement of a two-qubit XXZ spin chain in a homogenous magnetic field is investigated. It is found that the DM interaction can enhance thermal entan... 详细信息

关键词： XXZ spin chain DM interaction thermal entanglement

Dirichlet Forms Associated with Linear Diffusions

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Chinese Annals of Mathematics,Series B 2010年第4期31卷 507-518页

作者： xing fang Ping HE Jiangang YING Department of Mathematics zhejiang University of Technology Hangzhou 310014 China Department of Mathematics Shanghai University of Finance and Economics Shanghai 200433 China School of Mathematical Sciences Fudan University Shanghai 200433 China

One-dimensional local Dirichlet spaces associated with linear diffusions are studied. The first result is to give a representation for any 1-dim local, irreducible and regular Diriehlet space. The second result is a n... 详细信息

关键词： Symmetrizing measure Linear diffusion Dirichlet space Regular subspace

Zero increase in peak discharge for sustainable development

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Frontiers of Environmental Science & Engineering 2017年第4期11卷 11-21页

作者： xing fang Junqi Li Yongwei Gong Xiaoning Li Department of Civil Engineering Auburn University Auburn AL 36849-5337 USA Key Laboratory of Urban Stormwater System and Water Environment Ministry of Education Beijing University of Civil Engineering and Architecture Beijing 100044 China

For urban land development, some or all natural land uses （primarily pervious） are converted into impervious areas which lead to increases of runoff volume and peak discharge. Most of the developed countries require a zero increase in peak discharge for any land development, and the policy has been implemented for several decades. The policy of zero increase in peak discharge can be considered as historical and early stage for the low impact development （LID） and sustainable development, which is to maintain natural hydrological conditions by storing a part or all of additional runoff due to the development on site. The paper will discuss the policy, the policy implementation for individual projects and their impact on regional hydrology. The design rainfalls for sizing LID facilities that are determined in 206 weather stations in USA are smaller than design rainfalls for sizing detention *** zero-increase policy links to financial responsibility and sustainability for construction of urban stormwater infrastructures and for reducing urban flooding. The policy was compared with current practices of urban development in China to shine the light for solving urban stormwater problems. The connections and differences among LID practices, the zero-increase policy, and the flood control infrastructure were discussed. We promote and advocate the zero-increase policy on peak discharge for comprehensive stormwater management in China in addition to LID.

关键词： Stormwater management Detention basin Zero increase Peak discharge ' Sustainable development Design rainfall

Robust Control of Manned Submersible Vehicle With Nonlinear MPC and Disturbance Observer

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IEEE/CAA Journal of Automatica Sinica 2023年第5期10卷 1349-1351页

作者： Qiuxin Zhong xing fang Zhengtao Ding Fei Liu the Key Laboratory of Advanced Process Control for Light Industry of the Ministry of Education Jiangnan UniversityWuxi 214122China the Department of Electrical and Electronic Engineering University of ManchesterManchester M139PLUK

Dear Editor,This letter focuses on the trajectory tracking of 7000 m JIAOLONG manned submersible vehicle(MSV)with *** robust controller is realized by a composite control law,where an analytical nonlinear model predic... 详细信息

关键词： Nonlinear letter law

Metal halide perovskites quantum dots:Synthesis and modification strategies for solar CO_(2)conversion

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Chinese Journal of Structural Chemistry 2023年第12期42卷 60-74页

作者： Shu-Ran Xu fang-xing Xiao College of Materials Science and Engineering Fuzhou UniversityNew CampusMinhouFujian350108China

In the past few years,environmental and energy challenges arising from extensive burning of fossil fuels and CO_(2)emission have become the increasingly severe *** effective solution to address these problems is the reduction of CO_(2)into valuable solar fuels such as CO,CH_(4),and HCO_(2)H through the semiconductor-based pho-tocatalysis *** halide perovskites quantum dots(MHPs QDs)represent a new generation of pho-tosensitizers that possess excellent photoelectric properties and have been attracting enormous attention in the field of photocatalytic CO_(2)*** review provides a concise introduction on different types and prep-aration methods of MHPs QDs and discusses the specific applications especially photocatalytic CO_(2)reduction mechanism of MHPs ***,future opportunities and challenges for constructing high-performance MHPs QDs-based photocatalysts are further *** anticipate that our review could provide enriched information on the photocatalytic application of MHPs QDs toward solar-to-fuel conversion.

关键词： Metal halide perovskites Quantum dots Photocatalytic CO_(2)reduction Charge transfer

Algebraic Structure on Dirichlet Spaces

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Acta Mathematica Sinica,English Series 2006年第3期22卷 723-728页

作者： xing fang Ping HE Jian Gang YING Department of Mathematics Zhejiang University Department of Applied Mathematics Shanghai University of Finance and Economics Institute of Mathematics Fudan University

In this short note, we shall give a few equivalent conditions for a closed form to be Markovian, and prove that the closure of a sub-algebra of bounded functions in a Dirichlet space must be Markovian. We also study t... 详细信息

关键词： Dirichlet form Markovian property Algebra

Reduced graphene oxide-embedded nerve conduits loaded with bone marrow mesenchymal stem cell-derived extracellular vesicles promote peripheral nerve regeneration

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Neural Regeneration Research 2023年第1期18卷 200-206页

作者： Wei Zhang xing-xing fang Qi-Cheng Li Wei Pi Na Han Department of Orthopedics and Trauma Peking University People’s HospitalBeijingChina National Center for Trauma Medicine BeijingChina Central Laboratory Peking University People’s HospitalBeijingChina

We previously combined reduced graphene oxide(rGO)with gelatin-methacryloyl(GelMA)and polycaprolactone(PCL)to create an rGO-GelMA-PCL nerve conduit and found that the conductivity and biocompatibility were ***,the rGO-GelMA-PCL nerve conduits differed greatly from autologous nerve transplants in their ability to promote the regeneration of injured peripheral nerves and axonal *** vesicles derived from bone marrow mesenchymal stem cells(BMSCs)can be loaded into rGO-GelMA-PCL nerve conduits for repair of rat sciatic nerve injury because they can promote angiogenesis at the injured *** this study,12 weeks after surgery,sciatic nerve function was measured by electrophysiology and sciatic nerve function index,and myelin sheath and axon regeneration were observed by electron microscopy,immunohistochemistry,and *** regeneration of microvessel was observed by *** results showed that rGO-GelMA-PCL nerve conduits loaded with BMSC-derived extracellular vesicles were superior to rGO-GelMA-PCL conduits alone in their ability to increase the number of newly formed vessels and axonal sprouts at the injury site as well as the recovery of neurological *** findings indicate that rGO-GelMA-PCL nerve conduits loaded with BMSC-derived extracellular vesicles can promote peripheral nerve regeneration and neurological function recovery,and provide a new direction for the curation of peripheral nerve defect in the clinic.

关键词： angiogenesis axon bone mesenchymal stem cell extracellular vesicles hybrid nanofibers myelin sheath nerve conduit neurological function peripheral nerve injury reduced graphene oxide

Design and analysis of Salisbury screens and Jaumann absorbers for solar radiation absorption

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Frontiers in Energy 2018年第1期12卷 158-168页

作者： xing fang C. Y. ZHAO Hua BAO Institute of Engineering Thermophysics Shanghai Jiao Tong UniversityShanghai 200240 China University of Michigan-Shanghai Jiao Tong University Joint Institute Shanghai Jiao Tong University Shanghai 200240 China

Two types of resonance absorbers, i.e., Salis- bury screens and Jaumann absorbers are systematically investigated in solar radiation absorption. Salisbury screen is a metal-dielectric-metal structure which overcomes the drawback of bulky thickness for solar spectrum. Such structures have a good spectral selective absorption property, which is also insensitive to incident angles and polarizations. To further broaden absorption bandwidth, more metal and dielectric films are taken in the structure to form Jaumann absorbers. To design optimized structural parameters, the admittance matching equations have been derived in this paper to give good initial structures, which are valuable for the following optimization. Moreover, the analysis of admittance loci has been conducted to directly show the effect of each layer on the spectral absorptivity, and then the effect of thin films is well understood. Since the fabrication of these layered absorbers is much easier than that of other nanostructured absorbers, Salisbury screen and Jaumann absorbers have a great potential in large-area applications.

关键词： thin films admittance loci solar absorber

A new parallel lattice reduction algorithm for BKZ reduced bases

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Science China(Information Sciences) 2014年第9期57卷 136-145页

作者： LIU XiangHui fang xing WANG Zheng XIE XiangHui Department of Applied Mathematics Zhengzhou Information Science and Technology Institute

In order to implement the original BKZ algorithm in parallel,we describe it in terms of parallelism and give its parallel implementation *** we analyze the efficiency of algorithm’s parallel implementation and show that the speedup factor of BKZ algorithm in parallel is extremely *** we present a new parallel lattice reduction algorithm suitable for multiprocessor computer *** new algorithm can obtain a BKZ reduced basis and the parallel speedup is *** with the practical results,although the computational complexity increases compared with the original BKZ algorithm,we still indicate that the new algorithm performs well in parallel and the time cost in parallel is *** the same time,we show that the length of the shortest vector is smaller.

关键词： lattice reduction BKZ algorithm Goldstein-type lattices parallel algorithm multiprocessor computer architecture