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Search Results: 1 - 10 of 86762 matches for " Guang Chen "
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STATIC SPHERICALLY SYMMETRIC SOLUTION OF EINSTEIN GRAVITY COUPLED TO ELECTRO-MAGNETIC AND SCALAR FIELDS

Chen Guang,

中国物理 B , 2001,
Abstract: The static spherically symmetric solution of Einstein gravity coupled to electromagnetic and scalar fields is obtained under the consideration of the self-gravitational interaction of the electromagnetic and scalar fields, which is singularity-free and stable.
Some new Inequalities of Hardy-Hilbert Type with general kernel
Guang-Sheng Chen
Mathematics , 2011,
Abstract: In this paper, by using hardy inequality, we establish some new integral inequalities of Hardy-Hilbert type with general kernel. As applications, equivalent forms and some particular results are built; the corresponding to the double series inequalities are given.reverse forms are considered also.
A generalized Young inequality and some new results on fractal space
Guang-Sheng Chen
Mathematics , 2011,
Abstract: Starting with real line number system based on the theory of the Yang's fractional set, the generalized Young inequality is established. By using it some results on the generalized inequality in fractal space are investigated in detail.
Fourier Cosine and Sine Transform on fractal space
Guang-Sheng Chen
Mathematics , 2011,
Abstract: In this paper, we establish local fractional Fourier Cosine and Sine Transforms on fractal space, considered some properties of local fractional Cosine and Sine Transforms, show applications of local fractional Fourier Cosine and Sine transform to local fractional equations with local fractional derivative.
Generalizations of Holder's and some related integral inequalities on fractal space
Guang-Sheng Chen
Mathematics , 2011,
Abstract: Based on the local fractional calculus, we establish some new generalizations of H\"{o}lder's inequality. By using it, some results on the generalized integral inequality in fractal space are investigated in detail.
On an improvement of the Hardy-Hilbert type inequality
Guang-Sheng Chen
Mathematics , 2011,
Abstract: In this paper, by estimating the weight coefficient effectively, we establish an improvement of a Hardy-Hilbert type inequality proved by B.C. Yang, our main tool is Euler-Maclaurin expansion for the zeta function. As applications, some particular results are considered
Hierarchical Latent Semantic Mapping for Automated Topic Generation
Guorui Zhou,Guang Chen
Computer Science , 2015,
Abstract: Much of information sits in an unprecedented amount of text data. Managing allocation of these large scale text data is an important problem for many areas. Topic modeling performs well in this problem. The traditional generative models (PLSA,LDA) are the state-of-the-art approaches in topic modeling and most recent research on topic generation has been focusing on improving or extending these models. However, results of traditional generative models are sensitive to the number of topics K, which must be specified manually. The problem of generating topics from corpus resembles community detection in networks. Many effective algorithms can automatically detect communities from networks without a manually specified number of the communities. Inspired by these algorithms, in this paper, we propose a novel method named Hierarchical Latent Semantic Mapping (HLSM), which automatically generates topics from corpus. HLSM calculates the association between each pair of words in the latent topic space, then constructs a unipartite network of words with this association and hierarchically generates topics from this network. We apply HLSM to several document collections and the experimental comparisons against several state-of-the-art approaches demonstrate the promising performance.
Modeling and Improving the Energy Performance of GPS Receivers for Mobile Applications
Kongyang Chen,Guang Tan
Computer Science , 2015,
Abstract: Integrated GPS receivers have become a basic module in today's mobile devices. While serving as the cornerstone for location based services, GPS modules have a serious battery drain problem due to high computation load. This paper aims to reveal the impact of key software parameters on hardware energy consumption, by establishing an energy model for a standard GPS receiver architecture as found in both academic and industrial designs. In particular, our measurements show that the receiver's energy consumption is in large part linear with the number of tracked satellites. This leads to a design of selective tracking algorithm that provides similar positioning accuracy (around 12m) with a subset of selected satellites, which translates to an energy saving of 20.9-23.1\% on the Namuru board.
The relationship between apoptosis and aging  [PDF]
Bin Lu, Hong-Duo Chen, Hong-Guang Hong-Guang
Advances in Bioscience and Biotechnology (ABB) , 2012, DOI: 10.4236/abb.2012.326091
Abstract: Apoptosis is involved in aging and age-related disease, with respect to aging, apoptosis acting in a celltype-specific manner. The rate of apoptosis is elevated in-most types of aging cell populations and organs. In stable cells and certain continuously dividing cells, apoptosisserves to eliminate presumably dysfunctional cellsthat show homeostatic failure due to oxidative stress, glycation, and DNA damage, thereby maintaining homeostasis in the body. What’smore, apoptosis, at least in part, plays some important role inthe regulation of aging process and anti-tumorigenesis in mammals. Age-enhanced apoptosis may be aninnateprotective mechanism against age-associated tumorigenesis. There is clear evidence to indicate that senescentcells are remarkably resistant to apoptosis. The intensity of global apoptosis and autophagy clearance significantly declines in humans during aging, as aging repress the apoptotic response. In this paper, we will review the relationship between apoptosis and aging, and outline how are they interact each other.
Discrete Symmetry in Relativistic Quantum Mechanics  [PDF]
Guang-jiong Ni, Suqing Chen, Jianjun Xu
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.45094
Abstract:

EPR experiment on \"\"system in 1998 [1] strongly hints that one should use operators \"\" and \"\" for the wavefunction (WF) of antiparticle. Further analysis on Klein-Gordon (KG) equation reveals that there is a discrete symmetry hiding in relativistic quantum mechanics (RQM) that PT=C. Here PT means the (newly defined) combined space-time inversion (with x-x,t-t), while C the transformation of WF Ψ between particle and its antiparticle whose definition is just residing in the above symmetry. After combining with Feshbach-Villars (FV) dissociation of KG equation (Ψ=φ+x) [2], this discrete symmetry can be rigorously reformulated by the invariance of coupling equation of φ and x under either the combined space-time inversion PT or the mass inversion (m

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