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Entanglement Purification Through Cavity Input-Output Process

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Communications in Theoretical Physics 2008年第8期50卷 355-358页

作者： zhang xiao-long FENG Mang GAO Ke-Lin Center for Modern Physics and Department of Physics Chongqing University Chongqing 400044 China State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics the Chinese Academy of Sciences Wuhan 430071 China

We propose a scheme to purify entanglement of two atoms from not-too-impure entangled states by checking the parity of the two atoms through the cavity input-output process. As the parity check is made by measurement on single-photon polarization, which would not affect the entanglement of the two atoms, our scheme has the successful probability double of that in a previous well-known scheme with linear optical elements [Nature （London） 410 （2001） 1067], and is insensitive to the photon loss and the detection inefficieney. Experimental feasibility of our scheme with current technology is discussed.

关键词： entanglement purification cavity QED single-photon cavity input-output process

NON-NEWTONIAN COMPUTATIONAL HEMODYNAMICS IN TWO PATIENT-SPECIFIC CEREBRAL ANEURYSMS WITH DAUGHTER SACCULES

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Journal of Hydrodynamics 2010年第5期22卷 639-646页

作者： WANG Sheng-zhang CHEN Jia-liang DING Guang-hong LU Gang zhang xiao-long Department of Mechanics and Engineering Science Fudan University Shanghai 200433 China Center of Interventional Therapy Huashan Hospital Affiliated to Fudan University Shanghai 200040 China

Hemodynamic factors play important roles in the formation, progression and rupture of cerebral aneurysms, and the Wall Shear Stress （WSS） and Oscillatory Shear Index （OSI） on the aneurysms are considered to be correlated with their growth and rupture. In this article, two computational models based on patient-specific cerebral aneurysms with daughter saccule are constructed from 3D-RA image data, one is lateral aneurysm located in middle cerebral artery （CA1） and the other is terminal aneurysm located in anterior communicating artery （CA2）, The corresponding models of the two aneurysms by removing daughter saccule are established in order to investigate the initiation and growth of the daughter saccule. The flow patterns and the distributions of hemodynamic factors in the two aneurysms before and after daughter saccule is removed are obtained by solving the governing equations with the commercial CFD software Ansys CFX11.0 under the non-Newtonian fluid assumption. By analyzing the flow patterns, it is concluded that the aneurysms with daughter saccules have more complex and unstable flow patterns and hence are prone to rupture. By comparing the distribution of OSI, a hypothesis that a high OSI causes the growth of the daughter saccule is presented.

关键词： cerebral aneurysm computational hemodynamics non-Newtonian patient-specific

Synthesis and characterization of novel polyimides based on thiazole-containing diamine

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Chinese Chemical Letters 2007年第10期18卷 1203-1204页

作者： Xin Zhao Yan Feng Li Shu Jiang zhang xiao long-Wang Yu Shao State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringInstitute of Biochemical Engineering ＆ Environmental Technology Lanzhou University Lanzhou 730000 China

A new kind of aromatic diamine monomer containing thiazole unit, 2-amino-5-（4-aminophenyl）-thiazole （AAPT）, was synthesized in three steps, starting from 4-nitroacetophenone. A novel thiazole-containing polyimide was prepared via the polycondensation of AAPT with 6FDA by one-step method. The resulting polyimide exhibits excellent solubility, film-forming capability and high thermal resistance.

关键词： Thiazole Thiazole-containing monomer Synthesis Aromatic diamine

Effect of external fields on the switching current in(Ba0.97Ca0.03)(Zr0.18Ti0.82)O3ceramics

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Effect of external fields on the switching current in(Ba0.97...

RESEARCH ON PRODUCT INNOVATION DESIGN IN VIRTUAL PRODUCT DEVELOPMENT

第八届中国功能材料及其应用学术会议

作者： SHAO Jian DENG Xiang-yun zhang xiao-long College of Physics and Electronic Information Tianjin Normal University Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources Hainan University

ISBN: (纸本)9783037859698

Lead-free(BaCa)(ZrTi) O(BCZT)ceramic is prepared by sol-gel *** sampleshowsa pure perovskite structure through the XRD ***-developed grain morphology and a dense microstructure are acquired at an optimistic sintering temperature(330℃).The BCZT ceramicshowsasurprisingly high piezoelectric coefficient ofd33=675 pm/*** switching current curves are acquired in the different external fields by TF-2000 Ferroelectric *** is found that with increasing the temperature,there is a decrease in the coercive field(Ec),and with increasing the electric field,there is an increase in the switching current *** temperature has an effect on switching *** effect of temperature and electrical field on switching current is analyzed from viewpoint of the energy.

关键词： Sol-gel preparation Piezoelectric coefficient Ceramics Switching current Domain

来源： cnki会议评论

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Chinese Journal of Mechanical Engineering 2002年第4期15卷 353-359页

作者： Wu Qunbo zhang Linxuan xiao Tianyuan long Xinghai State CIMS Engineering Research Center, Tsinghua University, Beijing 100084, China Tsinghua University State CIMS Engineering Research Center 北京 100084

An integrated template of virtual product development alters primarilysequential tradition mode of product life cycle. The template integrates all processes of productdevelopment using digital modem. An environment of virtual product development provides productdevelopment environment of integration, communion, network, concurrent and collaboration. Combiningdevelopment of new rapier loom, an innovated design process is researched in virtual productdevelopment, which consists three portions: constructing an integration development environment,innovation design and manufacturing simulation. The innovated design process realizes reversedesign, mechanism concept design, structural design and analysis, performance analysis andmanufacturing process simulation of virtual product, which can enhance greatly product performanceand reduce cost and development cycle of new product.

关键词： virtual product development innovation design product data management

Chemoselective Catalytic Hydrogenation of α,β-Unsaturated Ketones and α,β-Unsaturated Carboxylic Esters

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Chemical Research in Chinese Universities 1998年第2期14卷 17-22页

作者： zhang Jing-wen ZHAO Jian-zhang zhang xiao-long JIANG Yu-lin MA Xiu-li SUN Yun-xiu JIANG Wen-pu LI Yao-xian XU Zhi-luo Department of Chemistry Jilin UniversityChangchun130023

The effect of catalysts P-2 00-Ni(Nickel boride) and P-2 00-Ni-M(M: Co, Fe, Cu, Sn), prepared by adopting a modified recipe, on the chemoselective hydrogenation of carbon carbon double bonds in α,β- unsaturated ketones, and the activity of catalysts P-1.80-Ni, P-2 00-Ni or P-1.80(2 00) -Ni-M(M: Pd, Co, Cu) in the selective hydrogenation of carbon carbon double bonds in α,β-unsaturated carboxylic esters, were investigated systematically. According to the experimental results, the selectivities of these catalysts toward the hydrogenation of the carbon carbon double bonds of α,β-unsaturated keones or α,β-unsaturated carboxylic esters are 96%—100% or 100%, respectively.

关键词： α β-Unsaturated ketone Nickel boride α β-Unsaturated carboxylic ester

NUMERICAL SIMULATION AND ANALYSIS ON THE HEMODYNAMICS OF AN ELASTIC ANEURYSM

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Journal of Hydrodynamics 2008年第2期20卷 216-224页

作者： ZHAO Jun-wei YIN Wen-yi DING Guang-hong YANG Xin-jian SHI Wan-chao zhang xiao-long Department of Mechanics and Engineering Science Fudan University Shanghai 200433 China Beijing Institute ofNeurosurgery Beijing 100050 China Huashan Hospital Affiliated to Fudan University Shanghai 200040 China

Intracranial aneurysms are pathological dilatations which endanger people＇s health. Hemodynamics is thought to be an important factor in the pathogenesis and treatment of aneurysms. To date, the bulk of investigations into hemodynamics have been conducted by making use of mathematically idealized models for rigid aneurysms and associated arteries. However the walls of aneurysms and associated arteries are elastic in vivo. This study shows the differences of the simulation between elastic and rigid wall models. The numerical simulation of elastic aneurysm model is made fi＇om a representative Digital Subtraction Angiography （DSA） image and calculated with CFD software to get the wall deformation and the velocity field. Then the results are analyzed. By comparing the simulation results of the two models from their velocity vectors and shear stress distribution, many differences can be noted. The main difference exists in the distribution of velocity magnitude at some sections, with one outlet having obviously off-center distribution for the elastic wall model. The currents of the distribution of wall shear stress along the wall of aneurysm simulated in rigid and elastic wall models were similar. But there were apparent differences between the two models on the values of wall shear stress especially at the neck of aneurysm. The off-center distribution of velocity magnitude affects the distribution of wall shear stress and the exchange of substance through the wall. The analysis demonstrated clearly that the results of 2-D elastic numerical simulation were in good agreement with the clinical and pathological practice. The results of this study play an important role in the formation, growth, rupture and prognosis of an aneurysm on clinic application.

关键词： aneurysm 2-D numerical simulation elastic wall medical image

Migration law of heavy metal cadmium in soil-root interface systems

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Journal of Coal Science & Engineering(China) 2013年第2期19卷 243-248页

作者： Jin-Xiang YANG Ming-Xu zhang xiao-long LI Liang-Min GAO Duo-Xi YAO School of Earth and Environment Anhui University of Science and Technology Huainan 232001 China

The distribution characteristics of heavy metals in soil-root systems have great significance for the research into soil pollution risk assessment and the phytoremediation effect. This paper takes ligustrum lucidum as an example, based on the characteristics of adsorption of heavy metals in soil by woody plants, lays out sampling points, and using software Surer for the Kiging interpolation analysis, and the horizontal migration law of heavy metal cadmium in the soil-root interface system is simulated. Through multi-model statistical regression trend analysis, the horizontal migration mechanism of cadmium in different sections is discussed. The results show that：（1） under horizontal migration law： the migration ability of Cd is weaker near the Ligustrum lucidum root （0 30 cm）; with the root extension, the migration ability of Cd gradually is strengthened, and the main range of the migration ability is 60-90 cm. In addition, its migration law follows the cubic curve mode. （2） under longitudinal migration law： based on the Kriging method, migration models Z（hi） of heavy metal Cd in any depth of hi are constructed and fit the correlation coefficient R^2〉0.95.

关键词： coal mine production safety monitor game

Studies　on　Ester　Exchange　Reaction

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Chemical Research in Chinese Universities 1998年第1期14卷 38-41页

作者： zhang, Jing-wen zhang, xiao-long Ma, Xiu-li Liu, Chang-cheng Mu, Ying Sun, Yun-xiu Jiang, Wen-pu Huang, Hua-min Li, Yao-xian Peng, Wan-ru Jilin Univ Dept Chem Changchun 130023 Peoples R China Changchun Higher Coll Med Sci Dept Pharmacol Changchun 130023 Peoples R China

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关键词： Reaction Studies Exchange Ester