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Search Results: 1 - 10 of 35723 matches for " PENG Fang "
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RETRACTED: Coupling Numerical Simulation and Field Experiment to Optimize Vegetation Arrangement for Pleasant Outdoor Wind Environment in Residential District  [PDF]
Bo Hong, Fang Chen, Peng Ren
Journal of Environmental Protection (JEP) , 2015, DOI: 10.4236/jep.2015.64037
Abstract: Short Retraction Notice

The paper does not meet the standards of \"Journal of Environmental Protection\".

This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

Editor guiding this retraction: Prof. Qingren Wang (EiC of JEP)

The full retraction notice in PDF is preceding the original paper, which is marked \"RETRACTED\".
Existence of Periodic and Subharmonic Solutions for Second-Order p-Laplacian Difference Equations
Chen Peng,Fang Hui
Advances in Difference Equations , 2007,
Abstract: We obtain a sufficient condition for the existence of periodic and subharmonic solutions of second-order p-Laplacian difference equations using the critical point theory.
Existence of Periodic and Subharmonic Solutions for Second-Order p-Laplacian Difference Equations
Peng Chen,Hui Fang
Advances in Difference Equations , 2007, DOI: 10.1155/2007/42530
Abstract: We obtain a sufficient condition for the existence of periodic and subharmonic solutions of second-order p-Laplacian difference equations using the critical point theory.
Analysis of Signal Attenuation of Continuous Wave in Drill String
Peng Jia,Jun Fang
Research Journal of Applied Sciences, Engineering and Technology , 2013,
Abstract: In this study, the friction model in non-Newtonian drilling fluid is developed to evaluate the signal attenuation in the information transmission with the continuous wave. A model of transient non-Newtonian power-law pipe flow is developed by assuming a steady viscosity varied only with the radius and the solution is derived analytically in complex domain and time domain. The frequency-dependent friction is developed based on the solution in the time domain and is used in the pressure wave transmission. And the analysis results show that the highest pressure amplification with resonant frequency increases with the power-law index n increase and the resonant frequency increases with the n decrease.
The Advances of Anti-angiogenesis and Normalization of Tumor Vasculature
Chinese Journal of Lung Cancer , 2009,
Helium Sedimentation and the UV Upturn in Brightest Cluster Galaxies
Fang Peng,Daisuke Nagai
Physics , 2009, DOI: 10.1088/0004-637X/705/1/L58
Abstract: Recent observations with Galaxy Evolution Explorer (GALEX) show strong unexpected UV excess in the spectrum of brightest cluster galaxies (BCGs). It is believed that the excess UV signal is produced by old and evolved core-He burning stars, and the UV flux strength could be greatly enhanced if the progenitor stars have high value of He abundance. In this work, we propose that sedimentation process can greatly enhance the He abundance in BCGs. Our model predicts that the UV flux strength is stronger in more massive, low-redshift, and dynamically relaxed BCGs. These predictions are testable with the current generation of GALEX+SDSS observations.
On the unsplittable minimal zero-sum sequences over finite cyclic groups of prime order
Jiangtao Peng,Fang Sun
Mathematics , 2014,
Abstract: Let $p > 155$ be a prime and let $G$ be a cyclic group of order $p$. Let $S$ be a minimal zero-sum sequence with elements over $G$, i.e., the sum of elements in $S$ is zero, but no proper nontrivial subsequence of $S$ has sum zero. We call $S$ is unsplittable, if there do not exist $g$ in $S$ and $x,y \in G$ such that $g=x+y$ and $Sg^{-1}xy$ is also a minimal zero-sum sequence. In this paper we show that if $S$ is an unsplittable minimal zero-sum sequence of length $|S|= \frac{p-1}{2}$, then $S=g^{\frac{p-11}{2}}(\frac{p+3}{2}g)^4(\frac{p-1}{2}g)$ or $g^{\frac{p-7}{2}}(\frac{p+5}{2}g)^2(\frac{p-3}{2}g)$. Furthermore, if $S$ is a minimal zero-sum sequence with $|S| \ge \frac{p-1}{2}$, then $\ind(S) \leq 2$.
生物多样性 , 1995,
Study on 3D Geological Model of Highway Tunnels Modeling Method  [PDF]
Kun ZHENG, Fang ZHOU, Pei LIU, Peng KAN
Journal of Geographic Information System (JGIS) , 2010, DOI: 10.4236/jgis.2010.21002
Abstract: Geology is the base for highways and tunnels construction. With the fast development of national highway construction, highway tunnel construction project are more and more complex. The completeness and accuracy are essential for the planning, design and construction of projects, while the ground information is quite poor in systematic, reliable and timely aspects. Therefore, the development of underground road tunnels, and the implementation of informationized spatial information management is urgent for highway construction. 3D geological tunnel model is intuitive, high efficient and convenience which greatly facilitates the maintenance and security of highway tunnels construction and it will be the trend for the future highway tunnel development.
Bayesian Testing for Asset Volatility Persistence on Multivariate Stochastic Volatility Models  [PDF]
Yong Li, Fang-Ping Peng, Hao-Feng Xu
Journal of Mathematical Finance (JMF) , 2012, DOI: 10.4236/jmf.2012.21010
Abstract: In empirical finance, it is well-known that the volatility of asset returns is highly persistent. The persistence of the volatility process may be checked by testing for a unit root on stochastic volatility models. In this paper, a Bayesian test statistic based on decision theory is developed for testing a unit root on multivariate stochastic volatility models. At last, the developed approach is applied to investigate the persistent effect of financial crisis on the two main stock markets in China.
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