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ANALYSIS OF FOLDS SOUTH OF MALAKAND AND ADJOINING AREAS, NORTH PAKISTAN

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地学前缘 2000年第S1期7卷 69-70页

作者： Irshad Ahmad 1,Joseph A. DiPietro 2(1.NCE in Geology, university of Peshawar Pakistan 2.department of Geology, university of Southern Indiana, Evansville,IN 47712,{3.)

North of the study area in lower Swat, the rocks have been found to have undergone multiple deformations with at least four periods of folding during a single Paleogene metamorphism (DiPietro and Lawrence, 1991). The earliest folds are composite W—SW vergent, syn\|metamorphic F 1/F 2 folds associated with the formation of the regional foliation. Late\|metamorphic, N—S trending open upright F 3.folds are associated with local foliation development, and E—W trending open F 4 folds are associated with retrograde metamorphism. These interfere with each other to produce dome/basin structures.

关键词： Paleogene metamorphism the regional foliation Malakand and adjoining areas,North Pakistan

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A SERENDIPITY FAMILY 0F LOcaLLY SUPPORTED SPLINES IN S_8~2(△)

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Analysis in Theory and Applications 1994年第2期10卷 43-53页

作者： Lai Mingjun The university of Georgia, usa department of Mathematics The university of Georgia Athens,GA 3.602 U.S.A

For a given triangulation Δ of a region R of interest, let S_8~2(Δ): = {s∈C^2(R): s|_1∈P_8,l∈Δ} be the space of all splines of degree 8 and smoothness 2, where t denotes any triangle of Δ and P_8 the space of polynomials of total degree≤8. Furthermore, let S_8~2(Δ):={s∈S_8~3.Δ):s∈C^3.at v, v∈Δ} be a super spline subspace of S_8~2(Δ). We construel a collection of locally supported splines in S_8~2(Δ) which can be used to achieve lhe full approximation order of S_8~2(Δ) and its cardinalily is less than the di- mension of super spline space space S_8~2(Δ).

关键词： A SERENDIPITY FAMILY 0F LOcaLLY SUPPORTED SPLINES IN S82 Figure

HYDROGEN IN Pd-In ALLOYS

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Acta Metallurgica Sinica(English Letters) 1996年第5期9卷 367-372页

作者： Y.L. Chen(department of Materials Science and Engineering, Zhejiang university, Hangzhou 3.0027, China)

The equilibrium p-c-T data were determined by a microbalance in a vacuum system at hydrogen pressures up to 3.5 MPa on four Pd-In alloys between 3.64 and 14.53.at. % In as well as on Pure Pd. The results are similar to those obtained on the analogous alloys Pd-Ag and Pd-Sn and are interpreted in the same manner. In has two opposing effects upon the solubility of H in the Pd alloys, i.e., increase of the Fermi energy upon the donation of valence electrons and a lattice dilatation. At valence electron concentrations below 0.5, the lattice dilatation predominates and the H solubility is increased with addition of In. At valence electron concentrations above 0.5, the influence of the elevated Fermi energy predominates and the H solubility is lowered by addition of In. The molar enthalpy of Pd hydriding at infinite dilution is strongly increased with increasing In content, but the molar entropy is not nearly as much affected by the Presence of In. The excess chemical potential of hydrogen at small hydrogen concentrations and at a given temperature increases with an increase of In content. The apparent H-H attractive interaction energy, W H-H, is decreased by the presence of In. The trend is also similar to that found for the Pd-Ag-H and Pd-Sn-H system.

关键词： Pd-In alloy valence electron lattice dilatation Fermi energy

Biomarkers of neurodegenerative disorders: How good are they?

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Cell Research 2004年第5期14卷 347-358页

作者： Varun RACHAKONDA department of Neurology Baylor College of Medicine Houston TX usa

Biomarkers are very important indicators of normal and abnormal biological processes. Specific changes in pathologies, biochemistries and genetics can give us comprehensive information regarding the nature of any particular disease. A good biomarker should be precise and reliable, distinguishable between normal and interested disease, and differential between different diseases. It is believed that biomarkers have great potential in predicting chances for diseases, aiding in early diagnosis, and setting standards for the development of new remedies to treat diseases. New technologies have enabled scientists to identify biomarkers of several different neurodegenerative diseases. The followings, for instance, are only a few of the many new biomarkers that have been recently identified: the phosphorylated tau protein and aggregated β-amyloid peptide for Alzheimer’s disease (AD), α-synuclein contained Lewy bodies and altered dopamine transporter (DAT) imaging for Parkinson’s disease (PD), SOD mutations for familial amyotrophic lateral sclerosis (ALS), and caG repeats resulted from Huntington’s gene mutations in Huntington’s disease (HD). This article will focus on the most-recent findings of biomarkers belonging to the four mentioned neurodegenerative diseases.

关键词： Alzheimer’s disease Parkinson’s disease Amyotrophic Lateral Sclerosis Huntington’s disease biomarkers.

On catastrophe and cavitation for Sphericalcavity

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Communications in Nonlinear Science and Numerical Simulation 1999年第4期4卷 249-254页

作者： Ming JIN Kefu HUANG Jike WU(department of Mechanics and Engineering Science, Peking university, Beijing 100871,China) department of Mechanics and Engineering Science Peking University Beijing 100871 China

IntroductionInrecelltyears,theresearchesoncavitationandcatastropheofacavitysu***therwithbifllrcationtheory... 详细信息

IntroductionInrecelltyears,theresearchesoncavitationandcatastropheofacavitysu***therwithbifllrcationtheory...

关键词： nonlinearity bifurcation Hooke material

Optimum thickness of Mssbauer absorber

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Nuclear Science and Techniques 2000年第2期11卷 91-95页

作者： CHEN Yi-Long YI Fan, ZHANG Fu-Liang(department of Physics of Wuhan university,Wuhan 43.072) 武汉大学湖北武汉武汉大学湖北武汉 430072

If recoilless fraction fa is available, the optimum absorber thickness dopt can be calculated by maximizing the signal to noise ratio or Q factor. In this work,an approach presented is to get experimental Qexp as a function of the thickness,andthen fitting Qexp by its theoretical expression gives fa value. At last the dopt value is deduced from a maximum on the fitted *** such a way, thicknesses of six specimens with quadrupole or magnetic hyperfinc splitting were optimized.

关键词：穆斯堡尔光谱穆斯保尔效应信噪比最佳吸收厚度噪声光谱吸收

Secure multi-party computation solution to Yao's millionaires' problem based on set-inclusion

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Progress in Natural Science:Materials International 2005年第9期15卷 851-856页

作者： LI Shundong**, DAI Yiqi and YOU Qiyou(department of Computer Science and Technology, Tsinghua university, Beijing 100084, China) department of Computer Science and Technology Tsinghua University Beijing 100084 China

Secure multi-party computation is a focus of international cryptography in recent years. Protocols for Yao’s millionaires’ problem have become an important building block of many secure multi-party computation protocols. Their efficiency are crucial to the efficiency of many secure multi-party computation protocols. Unfortunately, known protocols for Yao’s millionaires’ problem have high computational complexity or communication complexity. In this study, based on the 1-out-of-m oblivious transfer and set-inclusion problem, we propose a new protocol to solve this problem. This new protocol is very efficient in terms of both computational and communication complexities. Its privacy-preserving property is also proved by simulation paradigm which is generally accepted in the study of secure multi-party computation. We also compare the information leakage of our new protocol and the known protocols.

关键词： secure multi-party computation Yao’s millionaires’ problem 1-out-of-m oblivious transfer set-inclusion problem.

Changes of brain neuropeptide Y and its receptors in rats with flurazepam tolerance and dependence

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Acta Pharmacologica Sinica 2005年第11期26卷 1290-1296页

作者： Li-ping ZHANG, Li WANG~2 department of Pediatrics, Peking university First Hospital, Beijing 10003., China department of Pediatrics Peking University First Hospital Beijing China

Aim: Anticonvulsant tolerance and dependence are two obstacles that restrict the clinical use of benzodiazepines (BDZ). In order to explore the mechanism of these two adverse reactions, changes of neuropeptide Y (NPY) and its receptors in the hippocampus of rat models, in relation to flurazepam (FZP, a member of BDZ) tolerance and dependence, were investigated. Methods: The mRNA of preproNPY and its receptors (Y1, Y2, and Y5) in the hippocampus were determined by competitive RT-PCR, and the distribution of NPY in the hippocampus was examined by immunohistochemistry. Results: A decrease of preproNPY mRNA in the hippocampus was found in tolerant and dependent rats. The level of preproNPY mRNA in the hippocampus was reversely correlated with the degree of tolerance and dependence, measured by the threshold of pentylenetetrazol-induced seizures. Immunohistochemistry indicated a decrease of NPY-immunoreactive material in neurons of the ca1, ca3. and dentate gyrus regions of both tolerant and dependent rats. The mRNA of NPY receptors Y,and Y5decreased in tolerant rats but did not change in dependent rats. The mRNA of NPY receptor Y2increased in tolerant rats but decreased in dependent rats. Conclusion: A decrease of NPY in the hippocampus might be involved in anticonvulsant tolerance and dependence following long-term treatment with FZP. Y,, Y2, and Y5mRNA were also altered in FZP tolerance and dependence.

关键词： benzodiazepines neuropeptide Y flura zepam

NECESSARY CONDITIONS FOR OPTIMAL CONTROLS OF SEMILINEAR ELLIPTIC VARIATIONAL INEQUALITIES INVOLVING STATE CONSTRAINT

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Acta Mathematica Scientia 2005年第1期25卷 7-22页

作者：汪更生 department of Mathematics and the Center for Optimal Control and Discrete MathematicsHuazhong Normal university Wuhan 430079 China Department of Mathematics Wuhan University Wuhan 430072 China

This paper deals with maximum principle for some optimal control problem governed by some elliptic variational inequalities. Some state constraints are discussed. The basic techniques used here are based on those in [... 详细信息

关键词： Variational inequality optimal control state constraint maximum principle