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Relation between the shear stress of PMER fluids and the parameters of lamellar structures

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Relation between the shear stress of PMER fluids and the par...

第七届全国液体和软物质物理学术会议

作者： Li Cong,Liu Dakang,Zheng Jie,Zhou Luwei,Huang Jiping Surface physics Laboratory(National Key Laboratory) and Department of physics,fudan university, {4. 2004.3,china

＜正＞There are many experimental and theoretical[studies on the lamellar structure under electric and shear fields for dielectric ER *** was found that the number of particle rings of the lamellar structure increases with electric field,and decreases with rotation speed[1], and the rotating directions of the particle rings are opposite for the adjacent ***, there are only few quantitative comparisons between the ER effect and the parameters of

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Model of Anyons with Spin 1/2 and its Superfluidity

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Model of Anyons with Spin 1/2 and its Superfluidity

第三届青年超导会

作者： Shen Shunqing Department of physics fudan university shanghai 2004.3 J.Cai shanghai Institute of Metallurgy Academia Sinica shanghai 200050

＜正＞Basing on the special properties of spins in two-dimensional space,we have presented an abnormal commutation relation between anyone of spin-up and spin-down and have also obtained a general form of many-body wave function for a mizture of anyons with equal numbers of spin-up and spin-down *** demonstrate that such an anyons system is similar to a two-dimensional two-component Coulomb gas model,which can condense into a local siglet pairs forming superfluiding Kosterlitz-Thouless （KT） phase at low temperature.

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有任意带满的紧束缚哈密顿量的实空间重整化群研究

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物理学报 1989年第11期38卷 1777-1784页

作者：蒋祺陶瑞宝复旦大学物理系中国高等科学技术中心(世界实验室)理论物理分中心

本文运用实空间重整化群方法研究了有任意带满的无自旋的Fermi系统的行为。对于一维,求得了系统的基态能、相关函数和相关的临界分量,并与各向同性的s=1/2的X-Y模型进行了比较。对于D>1维,定性地讨论了系统的相关函数及临界分量。

关键词：任意带满哈密顿量重整化群

Conductance Oscillations through an Aharonov Bohm Ring with a Quantum Gate

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Advances in Manufacturing 1999年第3期3卷 203-207页

作者： SHI Yao ming CHEN Hang de XU Shi yue (College of Sciences, shanghai university) CHEN Hao (Department of physics, fudan university) College of Sciences Shanghai UniversityCHEN HaoDepartment of Physics Fudan University

Based on a one dimensional quantum wave guide theory, we investigate the ballistic conductance through an Aharonov Bohm ring with a quantum gate. The analytical expression of the conductance is exactly obtained as the function of magnetic flux penetrating the ring and Fermi energy of indcident electrons. When Fermi energy equals that of bound states in the isolated stub, the conductance is fixed at a constant value which is only determined by the geometric structure of the ring system. We have found that there are a new kind of conductance oscillations for some special mesoscopic ring systems. As Fermi energy of incident electrons crosses that of bound state in the isolated stub, the conductance oscillations have no abrupt change of phase by π and are in phase. This striking feature is not in ageement with that of previous experiments and theories. The mechanism causing this new feature is discussed.

关键词： conductance oscillation A B ring quantum gate

Effects of user tastes on personalized recommendation

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Effects of user tastes on personalized recommendation

第五届全国复杂网络学术会议

作者： Jian-Guo Liu,Tao Zhou,Qiang Guo,Bing-Hong Wang,Yi-Cheng Zhang Research Center of Complex Systems Science university of shanghai for Science and Technology,shanghai 200093,china Department of {4. physics university of Science and Technology of china,230026,china Department of physics university of Fribourg,Fribourg CH-1700,Switzerland Business School university of shanghai for Science and Technology,shanghai 200093,china

In this paper,based on a weighted projection of the user-object bipartite network,we study the effects of user tastes on the mass-diffusion-based personalized recommendation algorithm,where a user’s tastes or interests are defined by the average degree of the objects he has *** argue that the initial recommendation power located on the objects should be determined by both of their degree and the users’ *** introducing a tunable parameter,the user taste effects on the configuration of initial recommendation power distribution are *** numerical results indicate that the presented algorithm could improve the accuracy,measured by the average ranking score,more importantly,we find that when the data is sparse,the algorithm should give more recommendation power to the objects whose degrees are close to the users’ tastes,while when the data becomes dense,it should assign more power on the objects whose degrees are significantly different from user’s tastes.

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顺式聚乙炔中双极化子的新电子定域态

物理学报 1989年第8期38卷 1339-1343页

作者：解士杰梅良模孙鑫山东大学物理系复旦大学物理系

本文用自洽迭代的方法研究了顺式聚乙炔cis-(CH)_x中双极化子的电子能谱。结果发现,除了禁带中两个在连续模型中存在的深能级电子束缚态外,还存在一些浅能级的电子束缚态。它们形成分立的能级,并分别位于导带的顶部和底部以及价带的顶... 详细信息

本文用自洽迭代的方法研究了顺式聚乙炔cis-(CH)_x中双极化子的电子能谱。结果发现,除了禁带中两个在连续模型中存在的深能级电子束缚态外,还存在一些浅能级的电子束缚态。它们形成分立的能级,并分别位于导带的顶部和底部以及价带的顶部和底部。这些电子态的定域程度随着电子晶格耦合参数λ及电子相互作用U的不同而变化。

关键词：聚乙炔极化子电子态

Application and comparison of dispersion analysis methods applied to array wave data

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Application and comparison of dispersion analysis methods ap...

CPS/SEG 2004.International Geophysical Conference

作者： Cao Zhengliang Wang Kexie School of physics Jilin university Changchun china Wang Fei Computer Science and Technology fudan university shanghai china Xie Ronghua Test and Technology Services Corporation of Daqing Daqing china

＜正＞ Through applying to treatment of synthetic and field data, respectively, three methods, Prony’ s method, homomorphic processing, and weighted spectral semblance, of dispersion analysis applied to array acoustic logging data are studied and compared, and the results are good and acceptable. All three methods work in the frequency domain and yield slowness （the reciprocal of velocity ） estimate. Weighted spectral semblance is a simple dispersion analysis method, which can only be used to estimate a slowness of single mode at every frequency, and is better anti-noise than other methods for estimating slowness alone. Homomorphic processing method can be used to estimate attenuation, amplitude, and phase as well as velocity, simultaneously. But it is only suitable to estimate single mode at every frequency. Prony’s method can be applied to estimate attenuation, amplitude, and phase velocity. Introducing SVD-TLS method to judge the rank of modes at every frequency, above parameters of more than single mode at every frequency can be estimated effectively.

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Cardiac protection of new compounds from scientific Chinese medicine (SCM)

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Cardiac protection of new compounds from scientific Chinese ...

两岸三地药理学与临床药理学术会议

作者： ZHU Yi-zhun (Department of Pharmacology, School of Pharmacy, fudan university, shanghai 200032, china)

Objective Purification and Standardization of Chinese herbal extracts became a hot topic since last *** traditional Chinese medicine(TCM)has been used as a mixture from several herbs for cen- turies,it has been drawn much attention for studying the standardized Chinese herbs using modern technolo- *** Recently,we compared purified Salvia miltiorrhiza extract(PSME)with angiotensin-con- verting enzyme inhibitor,Ramipril,in in vitro experiments and also in vivo using animal model of myocar- dial *** PSME was found to have a significantly higher trolox equivalent antioxidant capacity which indicated a great capacity for scavenging free *** could also prevent pyrogalto red bleach- ing and DNA *** 2 weeks treatment with PSME or Ramipril,survival rates of rats with experi- mental myocardial infarction were marginally increased(68.2% and 71.4.)compared with saline (61.5%).In another recent study,we evaluated the cardioprotective effects of PSME on myocardial is- chemia/reperfusion injury in isolated rat hearts and in hypoxic vascular smooth muscle *** found that PSME treated hearts showed significant postischemic contractile function recovery(develop pressure recov- ered to 4..2±4.9% versus 17.1±5.7%,P4.6.3%,P<0.001 in PSME and control group respectively).Conclusions Significant elevated in end-diastolic pressure, which indicated LV stiffening in PSME hearts might be resulted by exceed dose of PSME *** and standardized Chinese herb could provide an alternative regimen for the prevention of ischemic heart disease.

关键词： traditional Chinese medicine purified Salvia miltiorrhiza extract myocardial infarction ramipril

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低维体系的相变和叠套

物理学报 1997年第10期46卷 1972-1977页

作者：凌帆陈小兵傅荣堂孙鑫川添良幸扬州大学师范学院物理系复旦大学物理系中国科学院红外物理国家重点实验室日本东北大学材料研究所

与一维体系不同，二维体系费密面的叠套是不完全的，此种叠套的偏离会显著地减弱体系的不稳定性．定量地研究了叠套偏离对Ｐｅｉｅｒｌｓ相变的影响，并确定了叠套偏离的限度，超过此值，Ｐｅｉｅｒｌｓ相变被抑制，这有利于进入超导态．

关键词：低温物理低维体系相变叠套费密面