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敦煌学辑刊 2007年第4期 1-2页

作者：杨恕兰州大学

尊敬的各位专家：

关键词：国际学术讨论会理论与实践世俗化敦煌学佛教致辞美国耶鲁大学兰州大学

NHPP-based software reliability model considering testing effort and multivariate fault detection rate

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Journal of Systems Engineering and Electronics 2016年第1期27卷 260-270页

作者： Jie Zhang yang Lu shu yang Chong Xu School of Computer and Information Hefei University of Technology Hefei 230009 China School of Mathematics and Computer Science Anhui Normal University Wuhu 241003 China

In recent decades,many software reliability growth models（SRGMs） have been proposed for the engineers and testers in measuring the software reliability *** of them is established based on the non-homogeneous Poisson process（NHPP）,and it is proved that the prediction accuracy of such models could be improved by adding the describing of characterization of testing ***,some research work indicates that the fault detection rate（FDR） is another key factor affects final software *** early NHPPbased models deal with the FDR as constant or piecewise function,which does not fit the different testing stages ***,this paper first incorporates a multivariate function of FDR,which is bathtub-shaped,into the NHPP-based SRGMs considering testing effort in order to further improve performance.A new model framework is proposed,and a stepwise method is used to apply the framework with real data sets to find the optimal *** studies show that the obtained new model can provide better performance of fitting and prediction compared with other traditional SRGMs.

关键词： software reliability software reliability growth mo del(SRGM) testing effort fault detection rate(FDR).

Modified Hybrid Plasmonic Waveguides as Tunable Optical Tweezers

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Chinese Physics Letters 2013年第3期30卷 84-87页

作者： ZHANG Lu yang shu School of Sciences Beijing University of Posts and TelecommunicationsBeijing 100876

We propose a series of modified hybrid plasmonic waveguide *** is found that their propagation distances and mode areas depend on their shapes *** optical trapping forces exerting on the dielectric nanoparticles are calculated,and the strength and range of the forces can be adjusted by altering the shapes of the *** features demonstrate the possibility of using the modified hybrid waveguide systems to design tunable nanoscale optical tweezers.

关键词： waveguide optical tunable

TWO DIMENSIONAL RIEMANN PROBLEM FOR GASDYNAMICS SYSTEM IN THREE PIECES

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Journal of Computational Mathematics 1999年第3期17卷 327-336页

作者： Li, Jie-quan yang, shu-li Acad Sinica Inst Math Beijing 100080 Peoples R China Acad Sinica Inst Appl Math Beijing 100080 Peoples R China

The Riemann problem for two-dimensional flow of polytropic gas with three constant initial data is considered. Under the assumption that each interface of initial data outside of the origin projects exactly one planar wave of shock, rarefaction wave or contact discontinuity, it is proved that only two kinds of combinations, JRS and Js, are reasonable. Numerical solutions are obtained by using a nonsplitting second order accurate MmB Scheme, and they efficiently reflect the complicated configurations and the geometric structure of solutions of gas dynamics system. (Author abstract) 10 Refs.

关键词： two-dimensional Riemann problem MmB scheme gas dynamics

Scattering amplitude and two-body loss of ultracold alkaline-earth atoms in a shaking synthetic magnetic field

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Communications in Theoretical Physics 2022年第6期74卷 135-142页

作者： shu yang Yue Chen Peng Zhang Department of Physics Renmin University of ChinaBeijing 100872China Beijing Computational Science Research Center Beijing 100084China Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China

The idea of manipulating the interaction between ultracold fermionic alkaline-earth(like)atoms via a laser-induced periodical synthetic magnetic field was proposed in Kanász-Nagy et al(2018 ***.B 97,155156).In that work,it was shown that in the presence of the shaking synthetic magnetic field,two atoms in^(1)S_(0)and^(3)P_(0) states experience a periodical interaction in a rotated frame,and the effective inter-atomic interaction was approximated as the time-averaged operator of this time-dependent *** technique is supposed to be efficient for ^(173) Yb atoms which have a large natural scattering *** we examine this time-averaging approximation and derive the rate of the two-body loss induced by the shaking of the synthetic magnetic field,by calculating the zero-energy inter-atomic scattering amplitude corresponding to the explicit periodical *** find that for the typical cases with shaking angular frequencyλof the synthetic magnetic field being of the order of(2π)kHz,the time-averaging approximation is applicable only when the shaking amplitude is small ***,the two-body loss rate increases with the shaking amplitude,and is of the order of 10^(-10)cm^(3)·s^(-1) or even larger when the time-averaging approximation is not *** results are helpful for the quantum simulations with ultracold gases of fermionic alkaline-earth(like)atoms.

关键词： ultracold atom spin-exchange interaction Floquet engineering

Effect of CaO content on residual stress of CAS glass-ceramic

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中国有色金属学会会刊：英文版 2006年第B1期16卷 101-104页

作者： XIE Jun CHENG Jin-shu LONG Xin-jiang yang shu-zhen Key Laboratory of Silicate Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China

The mismatch in thermal expansion coefficient between crystalline phase and glass phase can result in large thermal stresses during thermal processing, as well as the low thermal conductivity, which is the most troublesome in the production of the CaO-Al2O3-SiO2 glass-ceramic. CaO content may influence the residual stress in the system. Therefore X-ray diffraction (XRD) ‘sin2ψ’ method was used to calculate the residual stress in samples containing various contents of CaO. The relationship between CaO content and residual stress in CAS system was investigated. Finally reasons causing such residual stress were analyzed.

关键词： CAS玻璃陶瓷氧化钙含量残余应力晶相玻璃相

Two-component dimers of ultracold atoms with center-of-mass-momentum dependent interactions

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Communications in Theoretical Physics 2024年第4期76卷 153-157页

作者： Yaru Liu shu yang Peng Zhang Department of Physics Renmin University of ChinaBeijing 100872China Graduate School of China Academy of Engineering Physics Beijing 100193China Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education) Renmin University of ChinaBeijing 100872China

In a previous paper[***.A95,060701(R)(2017)],we demonstrated that a new type of two-body interaction,which depends on the center of mass(CoM)momentum,can be realized for ultracold atoms via laser-modulated magnetic Feshbach resonance(MFR).Further studies(e.g.L He et al,***.120,045302(2018))show that various interesting phenomena,such as Fulde–Ferrell superfluids,can be induced by scattering between ultracold atoms with this *** this work we investigate the shallow bound states of two ultracold atoms with this type of *** show that when the magnetic field B is below the MFR point B0,two shallow bound states can appear in this ***,a'two-component dimer'or a dimer with pseudo-spin 1/2 can be formed by two ***,the dispersion curve of the dimer may have either single or double minimums in the CoM momentum *** latter case can be explained as a result from significant pseudo-spin-orbital coupling(SOC)*** results show that the ultracold gases with CoM momentum dependent interaction may be a candidate for quantum simulations with ultracold two-component molecules,especially the molecule gases with SOC.

关键词： center-of-mass-momentum dependent interaction Raman-laser modulated MFR two-component dimer

NUMERICAL SIMULATION OF UNSTEADY FLOW FOR VISCO- ELASTIC FLUID IN AN ECCENTRIC ANNULUS WITH INNER ROD RECIPROCATION

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Journal of Hydrodynamics 2008年第2期20卷 261-266页

作者： HE Feng-yun yang shu-ren Department of Petroleum Engineering Daqing Petroleum Institute Daqing 163318 China

The equation governing the unsteady flow of viscoelastic fluids in an eccentric annulus was derived by using the common conversion Maxwell fluid constitutive equation and then discretized by the control volume method. The velocity distribution of flow field was computed by using the ADI method. The influences of the pressure gradient, eccentricity, stroke length, and stroke frequency on the velocity and flow capacity in the flow field was analyzed. The foundation for further research of the eccentric wear problem of the pumping rod in polymer-flood well was laid.

关键词： polymer-flood well viscoelastic fluid eccentric annulus unsteady flow eccentric wear

Correction to Hawking Tunneling Radiation from Global Monopole Charged BlackHole

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Communications in Theoretical Physics 2009年第1期51卷 190-192页

作者： LI Hui-Ling yang shu-Zheng College of Physics Science and Technology Shenyang Normal University Shenyang 110034 China Institute of Theoretical Physics China West Normal University Nanchong 637002 China

Considering the self-gravitation and energy conservation as well as charge conservation, we extend Medved and Vagenas＇s quantum tunneling method to the global monopole charged black hole, and give a correction to Haw... 详细信息

关键词： Hawking tunneling radiation energy conservation charge conservation self-gravitation

Quantum Corrections to the Radiation of Schwarzschild-anti-de Sitter Black Hole with Topological Defect

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Communications in Theoretical Physics 2007年第6期47卷 1145-1147页

作者： HAN Yi-Wen yang shu-Zheng Science of College Chongqing Technology and Business University Chongqing 400067 China Institute of Theoretical Physics China West Normal University Nanchong 637002 China

We extend Zhang and Zhao＇s recent work to the Schwarzschild-anti-de Sitter black hole with topological defect, whose Arnowitt-Deser-Misner （ADM） mass is no longer identical to its mass parameter. The behavior of the tunneling massive particle is investigated and the emission rate is calculated. The result satisfies an underlying unitary theory and takes the same functional form as that of the mass-less particle.

关键词： black hole ADM mass emission rate quantum theory Hamilton-Jacobi method