Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 25 )

2018 ( 672 )

2017 ( 690 )

2016 ( 639 )

Custom range...

Search Results: 1 - 10 of 46926 matches for " Yi-bing Xue "
All listed articles are free for downloading (OA Articles)
Page 1 /46926
Display every page Item
Solar Energy and Residential Building Integration Technology and Application  [PDF]
Ding Ma, Yi-bing Xue
International Journal of Clean Coal and Energy (IJCCE) , 2013, DOI: 10.4236/ijcce.2013.22B002

Building energy saving needs solar energy, but the promotion of solar energy has to be integrated with the constructions. Through analyzing the energy-saving significance of solar energy, and the status and features of it, this paper has discussed the solar energy and building integration technology and application in the residential building, and explored a new way and thinking for the close combination of the solar technology and residence.

Blind Adaptive Multiuser Detector Based on Robust Kalman Filter

Xue Yi-bing,Li Jian-dong,

电子与信息学报 , 2005,
Abstract: A high performance blind adaptive multiuser detection algorithm is proposed by introducing robust Kalman filter based on a compensation technique of a fictitious noise to estimate the optimal decision vector of asynchronous CDMA multiple-users receiver. This algorithm can converge rapidly, track in high accuracy and has satisfied numeric stability. Simulation results show that this algorithm can eliminate Multiple Access Interference (MAI) efficiently and is robust for numerical calculation.
Variational Estimation of the Wave Function at Origin for Heavy Quarkonium
Yi-Bing Ding,Xue-Qian Li,Peng-Nian Shen
Physics , 1998, DOI: 10.1103/PhysRevD.60.074010
Abstract: The wave function at the origin (WFO) is an important quantity in studying many physical problems concerning heavy quarkonia. However, when one used the variational method with fewer parameters, in general, the deviation of resultant WFO from the "accurate" solution was not well estimated. In this paper, we discuss this issue by employing several potential forms and trial wave functions in detail and study the relation between WFO and the reduced mass.
Comment on " a unified scheme for flavored mesons and baryons"
Yi-Bing Ding,Xue-Qian Li,Pong-Nian Shen
Physics , 1999, DOI: 10.1007/s100500050017
Abstract: We would comment on the results of the paper "a unified scheme for flavored mesons and baryons" (P.C.Vinodkumar, J.N.Panandya, V.M.Bannur, and S.B.Khadkikar Eur. Phys. J. A4(1999)83), and point out some inconsistencies and mistakes in the work for solving the Dirac equation. In terms of an example for a single particle we investigate the reliability of the perturbative method for computing the Coulomb energy and discuss the contribution to the wavefunction at origin from the Coulomb potential. We conclude that the accuracy of their numerical results needs to be reconsidered.
Application of Hypervirial Theorem As Criteria For Accuracy of Variational Trial Wave Function
Yi-Bing Ding,Xue-Qian Li,Peng-Nian Shen
Physics , 1999,
Abstract: It would be interesting to investigate the accuracy of the results obtained in the variational method, because it is important for studying hadron spectra. One can define some criteria to judge the accuracy, or the quality of the trial function. We employ a simple potential form to check how accurate the variational results obtained by a single-parameter trial function can be. All the concerned problems, in particular, the relevant aspects on the application of hypervirial theorem in variational method for various potential forms, are discussed in every detail. The qualitative conclusion of the work can be generalized to much more complicated cases. Our study suggests that the hypervirial relations can serve as a good and practical criterion for judging the accuracy of any trial functions.
Singularity in Potential, Perturbation and Variational Methods
Yi-Bing Ding,Xue-Qian Li,Peng-Nian Shen
Physics , 1999,
Abstract: In this work, we carefully study the energy eigen-values and splitting of heavy quarkonia as there exist $1/r^3$ and $\delta^3(\vec r)$ singular terms in the potential which make a direct numerical solution of the Schr\"{o}dinger equation impossible. We compare the results obtained in terms of perturbation and variational methods with various treatments.
Molecular States and 1^-+ Exotic Mesons
Rui Zhang,Yi-Bing Ding,Xue-Qian Li,Philip R. Page
Physics , 2001, DOI: 10.1103/PhysRevD.65.096005
Abstract: This work investigates whether the observed 1^-+ exotic mesons are molecular states. We first use a potential model to calculate the spectra and lifetimes of the f_0(980) and a_0(980), taken to be loosely bound molecular states of K Kbar, then apply the same scenario to the 1^-+ exotic states pi_1(1400) and pi_1(1600), assuming them to be pi eta(1295) and pi eta(1440) molecules respectively. We derive the effective potential in the framework of field theory at the hadronic level. Our results indicate that the present data on pi_1(1400) and pi_1(1600) rule out the specific molecular ansatz. We show that the lifetime of a loosely bound heavy-light molecule with enough angular momentum is fully determined by the lifetimes of its constituent mesons.
Baryon spectra and non-strange baryon strong decays in the chiral SU(3) quark model
Zhao, Hong-Ming;Shen, Peng-Nian;Ding, Yi-Bing;Li, Xue-Qian;Zou, Bing-Song
High Energy Physics - Phenomenology , 2007,
Abstract: In the framework chiral SU(3) quark model, the baryon spectra within the band of $N\leq 2$ are studied, and the effect of the confining potential in different configurations, namely the $\Delta$-mode and Y-mode are compared. In the same way, the baryon spectra in the extended chiral SU(3) quark model, in which additional vector meson exchanges are introduced, are also calculated. It is shown that a reasonable baryon spectrum in the chiral SU(3) quark model can be achieved no matter whether the $\Delta$-mode or the Y-mode confining potential is employed. In the extended chiral SU(3) quark model, several energy levels are further improved. The resultant binding energies of excited baryon states in different confining modes deviate just by a few to several tens MeV, and it is hard to justify which confining mode is the dominant one. The non-strange baryon strong decay widths are further discussed in the point-like meson emission model by using the wave-function obtained in the spectrum calculation. The resultant widths can generally explain the experimental data but still cannot distinguish which confining mode is more important in this simple decay mode.
Advances in the effects, mechanisms and modeling of hormesis in terrestrial ecosystems

GUO Xue-Yan,MA Yi-Bing,LI Bo,

生态学报 , 2009,
Abstract: Hormesis is a dose-response phenomenon which is characteristic of a low dose stimulation. Large amounts of data indicate that hormesis starts to occur immediately below the no observed adverse effect levels (NOAEL) and the maximum stimulatory response is generally approximately 30%-60% greater than the control, which exists objectively. This article provides an overview of hormesis, mainly including its concept, mechanisms, quantitative features and the fitting models. Also the examples of the model fitting are given. Finally, the key issues and orientation of research work on hormesis are also illustrated and proposed.
Testing the Bell Inequality at Experiments of High Energy Physics
Xi-Qing Hao,Hong-Wei Ke,Yi-Bing Ding,Peng-Nian Shen,Xue-Qian Li
Physics , 2009, DOI: 10.1088/1674-1137/34/3/002
Abstract: Besides using the laser beam, it is very tempting to directly testify the Bell inequality at high energy experiments where the spin correlation is exactly what the original Bell inequality investigates. In this work, we follow the proposal raised in literature and use the successive decays $J/\psi\to\gamma\eta_c\to \Lambda\bar\Lambda\to p\pi^-\bar p\pi^+$ to testify the Bell inequality. Our goal is twofold, namely, we first make a Monte-Carlo simulation of the processes based on the quantum field theory (QFT). Since the underlying theory is QFT, it implies that we pre-admit the validity of quantum picture. Even though the QFT is true, we need to find how big the database should be, so that we can clearly show deviations of the correlation from the Bell inequality determined by the local hidden variable theory. There have been some critiques on the proposed method, so in the second part, we suggest some improvements which may help to remedy the ambiguities indicated by the critiques. It may be realized at an updated facility of high energy physics, such as BES III.
Page 1 /46926
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.