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Search Results: 1 - 10 of 138469 matches for " LI Zhong "
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Spectral Imagers with Linear Detector Imager Systems Based on Spectrum Compressed  [PDF]
Xiaoming Zhong, Huang Li, Huang Li
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.32039

Traditional spectral imagers require 2-dimensional detectors. We present a new method to implement spectral imagers with linear detector imager systems based on spectrum compressed. Using 1-dimension detectors instead of 2-dimension detectors to get 3-dimensional data cubes, the spectral imagers could get both the spectral information and the spatial information of each ground object. By the method of characteristics decoupling, we make high precision reconstruction of compressed data. Theoretical analysis and simulations show that it not only ensures the imaging quality but also reduces the dimension of the detectors and complexity of imaging system greatly.

On the boundary value problem for harmonic maps of the Poincaré disc
Zhong Li
Chinese Science Bulletin , 1997, DOI: 10.1007/BF02882940
Abstract: The boundary value problem for harmonic maps of the Poincaré disc is discussed. The emphasis is on the non-smoothness of the given boundary values in the problem. Let T* be a subspace of the universal Teichmüller space, defined as a set of normalized quasisymmetric homeomorphismsh of the unit circle S1 onto itself whereh admits a quasiconformal extension to the unit disc D with a complex dilatation μ satisfying $\iint {_\mathbb{D} }|\mu (z)|^2 \rho (z)dxdy< \infty (z = x + iy)$ , where ρ(z)|dz|2 is the Poincaré metric of D. LetB * be a Banach space consisting of holomorphic quadratic differentials in D with norms $\left\| \phi \right\|_{B_ * } = \left( {\iint {_\mathbb{D} }|\phi (z)|^2 \rho ^{ - 1} (z)dxdy} \right)^{\frac{1}{2}}< \infty $ . It is shown that for any given quasisymmetric homeomorphismh: S 1→S1 ∈ T*, there is a unique quasiconformal harmonic map of D with respect to the Poincaré metric whose boundary corresponding ish and the Hopf differential of such a harmonic map belongs to B*.
In Situ Detection of the p53-E6 and pRb-E7 Complex Formation in EC109 Cell by Proximity Ligation Assay  [PDF]
Yangjunqi Wang, Jintao Li, Fan Li, Shuying Li, Rugang Zhong
Journal of Cancer Therapy (JCT) , 2019, DOI: 10.4236/jct.2019.104027
Abstract: Human papillomavirus is an important cancer factor in many cancers. E6E7 is the important viral oncogene and plays an important role. It is known that its function is to regulate p53 and pRb. In this paper, in situdetection was performed to determine the interaction between them; the research provides visual evidence of their interaction. Research methods: In situ PLA reaction was used to detect the relationship between two different protein. Results: The quantity of the HPV18E6 expression is much higher than the expression of HPV18E7 protein in HeLa and EC109 cells; the interaction between p53-E6 and pRb-E7 was clearly observed and this effect could be visualized by this method. Conclusion: Interaction of the HPV18E6 protein combined with p53 protein and HPV18E7 protein combined with pRb protein could be visualized in cell.
An Overview of Personal Credit Scoring: Techniques and Future Work  [PDF]
Xiao-Lin Li, Yu Zhong
International Journal of Intelligence Science (IJIS) , 2012, DOI: 10.4236/ijis.2012.224024
Abstract: Personal credit scoring is the application of financial risk forecasting. It becomes an even important task as financial institutions have been experiencing serious competition and challenges. In this paper, the techniques used for credit scoring are summarized and classified and the new method—ensemble learning model is introduced. This article also discusses some problems in current study. It points out that changing the focus from static credit scoring to dynamic behavioral scoring and maximizing revenue by decreasing the Type I and Type II error are two issues in current study. It also suggested that more complex models cannot always been applied to actual situation. Therefore, how to use the assessment models widely and improve the prediction accuracy is the main task for future research.
A Joint User Selection and Resources Optimization Scheduling Algorithm for CoMP  [PDF]
Xincheng Zhong, Weihai Li, Yuqin Lv
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.53B2026
Abstract: Coordinated Multi-point (CoMP) transmission technology is one of the key techniques in LTE-Advanced, Which can share the channel and data information in multiple cells, and optimize the whole system performance. In order to optimize the average sector throughput and improve the fairness of resource scheduling, a scheduling algorithm based on the resource is mainly investigated. In this algorithm, users in the network are classified firstly and then we combine the fixed resources division and flexible scheduling. System level simulation platform is set up to validate the algorithm and the results turn out that the average throughput is better compared with the traditional scheme.
Medical Waste Management in China: A Case Study of Xinxiang  [PDF]
Li Nie, Zhong Qiao, Huan Wu
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.510082

Due to medical waste’s infection and hazard, it can cause potential environmental and public health risks, so medical waste management is of great importance especially in developing countries. The objective of the study was to analyze and assess current status of medical waste management in the light of semi-structured interview in medical institutions and the medical waste disposal centre. As a medium-sized city of China and its respective nature, Xinxiang was selected as the case study. In order to significantly improve eco-efficiency of medical waste management (MWM) and minimize the environmental risks, this paper identified key factors determining the implementation of MWM on the basis of the local realities and situations of medical waste, and then an integrated MWM system was developed. Such the regulations should be improved; MWM database platform should be strengthened; unified coordination ability of the MWM should be developed; and a suitable rural recycling network should be set up.

The Clinic Analysis of Diclofenac Suppository for Oocyte Retrieval Analgesia in IVF-ET Cycles  [PDF]
Yubin Li, Qingyun Mai, Tao Li, Yiping Zhong, Canquan Zhou
International Journal of Clinical Medicine (IJCM) , 2013, DOI: 10.4236/ijcm.2013.48062

Objective: To study the effect of diclofenac suppository in oocyte retrieval of IVF-ET. Study Design: 1176 patients with informed consents were enrolled into this prospective randomized controlled study. The setting was an IVF-ET program at the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. According to the analgesic drug use, the patients were randomly divided into pethidine group (573 cases) and diclofenac suppository group (603 cases). The data of vital signs, common adverse reactions, severe adverse events and pain degree in oocyte retrieval were collected. The IVF-ET outcomes were also compared. Results: The post-operation pressure and pulse were lower in pethidine group than in diclofenac suppository group (both P<0.001).The rest vital signs were not statistically different (all P>0.05). Common adverse reactions in diclofenac suppository group were relative less (all P<0.05). Pain degree between the two groups was not statistically different (P=0.304). IVF-ET outcomes were also not statistically different (all P>0.05). There were 3 cases serious abdominal bleeding with shock in the diclofenac suppository group. Conclusion: Using diclofenac suppository in

The Inverse Fundamental Operator Marching Method for Cauchy Problems in Range-Dependent Stratified Waveguides
Peng Li,Weizhou Zhong
Mathematical Problems in Engineering , 2011, DOI: 10.1155/2011/259479
Abstract: The inverse fundamental operator marching method (IFOMM) is suggested to solve Cauchy problems associated with the Helmholtz equation in stratified waveguides. It is observed that the method for large-scale Cauchy problems is computationally efficient, highly accurate, and stable with respect to the noise in the data for the propagating part of a starting field. In further, the application scope of the IFOMM is discussed through providing an error estimation for the method. The estimation indicates that the IFOMM particularly suits to compute wave propagation in long-range and slowly varying stratified waveguides.
Permanence and Global Attractivity of a Discrete Two-Prey One-Predator Model with Infinite Delay
Zhixiang Yu,Zhong Li
Discrete Dynamics in Nature and Society , 2009, DOI: 10.1155/2009/732510
Abstract: A discrete two-prey one-predator model with infinite delay is proposed. A set of sufficient conditions which guarantee the permanence of the system is obtained. By constructing a suitable Lyapunov functional, we also obtain sufficient conditions ensuring the global attractivity of the system. An example together with its numerical simulation shows the feasibility of the main results.
EXTRACTION KINETICS OF RARE EARTH (Ⅰ) A Constant Interfacial Cell with Laminar Flow
ZHENG Zhong,LI Deqian
金属学报(英文版) , 1995,
Abstract: EXTRACTIONKINETICSOFRAREEARTH(Ⅰ)AConstantInterfacialCellwithLaminarFlow¥ZHENGZhong;LIDeqian(ChangchunInstituteofAppliedChemis...
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