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Search Results: 1 - 10 of 81256 matches for " LIU Hongbo "
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Strong Convergence Results for Hierarchical Circularly Iterative Method about Hierarchical Circularly Optimization  [PDF]
Hongbo Liu
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.37079
Abstract:

An hierarchical circularly iterative method is introduced for solving a system of variational circularly inequalities with set of fixed points of strongly quasi-nonexpansive mapping problems in this paper. Under some suitable conditions, strong convergence results for the hierarchical circularly iterative sequence are proved in the setting of Hilbert spaces. Our scheme can be regarded as a more general variant of the algorithm proposed by Maingé.

Convergence Theorems for k-Strictly Pseudononspreading Multivalued in Hilbert Spaces  [PDF]
Hongbo Liu, Yi Li
Advances in Pure Mathematics (APM) , 2014, DOI: 10.4236/apm.2014.47042
Abstract:

We introduce a k-strictly pseudononspreading multivalued in Hilbert spaces more general than the class of nonspreading multivalued. We establish some weak convergence theorems of the sequences generated by our iterative process. Some new iterative sequences for finding a common element of the set of solutions for equilibrium problem was introduced. The results improve and extend the corresponding results of Osilike Isiogugu [1] (Nonlinear Anal.74 (2011)) and others.

Convergence Theorem of Hybrid Iterative Algorithm for Equilibrium Problems and Fixed Point Problems of Finite Families of Uniformly Asymptotically Nonexpansive Semigroups  [PDF]
Hongbo Liu, Yi Li
Advances in Pure Mathematics (APM) , 2014, DOI: 10.4236/apm.2014.46033
Abstract:

Throughout this paper, we introduce a new hybrid iterative algorithm for finding a common element of the set of common fixed points of a finite family of uniformly asymptotically nonexpansive semigroups and the set of solutions of an equilibrium problem in the framework of Hilbert spaces. We then prove the strong convergence theorem with respect to the proposed iterative algorithm. Our results in this paper extend and improve some recent known results.

Formal Verification for CCML Based Web Service Composition
Xiuguo Zhang,Hongbo Liu
Information Technology Journal , 2011,
Abstract: Using formal methods to verify web services composition is an important means for ensuring correctness and reliability of web services composition. This study, has presented a formal verification method for CCML (Cooperative Composition Modeling Language) based web service composition. First, a mapping mechanism from CCML description of application system to CCS expression is given, then the temporal logic based checking mechanism and automated tool of CWB-NC (Concurrency Workbench of the New Century) is used to address the property verification and service compatibility verification problems of CCML based web service composition. Finally, an application case is presented to show that the formal verification method of CCML based service composition is valid.
A new improved filter for target tracking: compressed iterative particle filter  [PDF]
Hongbo Zhu, Hai Zhao, Dan Liu, Chunhe Song
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.34039
Abstract: Target tracking in video is a hot topic in computer vision field, which has wide applications in surveillance, robot navigation and human-machine interaction etc. Meanshift is widely used algorithm in video target tracking field. The basic mean shift algorithm only considers the color of targets as the tracking characteris- tic feature, so if the appearance of the target changes greatly or there exits other objects whose color is similar to the target, the tracking process will fail. To enhance the stability and robustness of the algorithm, we introduce par- ticle filter into the tracking process. Basic particle filter has some disadvantages such as low accuracy, high computational complexity. In this paper, an improved particle filter GA-UPF was proposed, in which a new re-sampling algorithm was used to predict target centroid position. The target tracking system of binocular stereo vision is designed and implemented. Experi- mental results have shown that our algorithm can tracking object in video with high accuracy and low computational complexity.
Research on Knowledge Transfer Influencing Factors in Software Process Improvement  [PDF]
Jiangping Wan, Qingjing Liu, Dejie Li, Hongbo Xu
Journal of Software Engineering and Applications (JSEA) , 2010, DOI: 10.4236/jsea.2010.32017
Abstract: Knowledge transfer model of software process improvement (SPI) and the conceptual framework of influencing factors are established. The model includes five elements which are knowledge of transfer, sources of knowledge, recipients of knowledge, relationship of transfer parties, and the environment of transfer. The conceptual framework includes ten key factors which are ambiguity, systematism, transfer willingness, capacity of impartation, capacity of absorption, incen-tive mechanism, culture, technical support, trust and knowledge distance. The research hypothesis is put forward. Em-pirical study concludes that the trust relationship among SPI staffs has the greatest influence on knowledge transfer, and organizational incentive mechanism can produce positive effect to knowledge transfer of SPI. Finally, some sug-gestions are put forward to improve the knowledge transfer of SPI: establishing a rational incentive mechanism, exe-cuting some necessary training to transfer parties and using software benchmarking.
Design of Wireless Optical Access System using LED  [PDF]
Liwei Ding, Fang Liu, Yingjie He, Hongbo Zhu, Yongjin Wang
Optics and Photonics Journal (OPJ) , 2013, DOI: 10.4236/opj.2013.32B036
Abstract:

This paper develops a prototype to demonstrate a full-duplex wireless visible light communication (VLC) system based on Universal Serial Bus (USB) port. Combing with a USB 2.0 port on one board, it can achieve up to 2 Mbps bit rates error free, which is mainly limited to the USB bridge circuit, between two computers for data transmission, such as text, audio and video. Hyper Terminal and self-written software are used to allow setting the transmission data rate, control bits, check bits and achieve real-time transmission between any two mobile devices with a USB port. The work is based on the research of VLC local access network. This paper also shows the experimental results and the relationship between system transmission eye diagram and bit rate.

A Robust Optical Encryption Method for Three-Dimensional Object Based on the Fresnel Transform  [PDF]
Yinghong Liu, Weimin Jin, Xin Yang, Di Wu, Hongbo Zhang
Optics and Photonics Journal (OPJ) , 2015, DOI: 10.4236/opj.2015.511029
Abstract: An optical encryption of three-dimensional (3D) object with digital holography was implemented. In the process of encryption, two holograms involved recording key information and 3D object were obtained. In the process of decryption, the 3D object was reconstructed from the two holograms by extracting the object and key information, followed by multiplication of the two holograms and inverse Fresnel transform numerically. The robustness of the method was also tested for different occlusions attacks and Gaussian noises. The results showed that the method was able to encrypt and decrypt the 3D object while being robust under different occlusions attacks and Gaussian noises.
An Assesment of Underground Mine Enviromental Monitoring Methods at Zambia s Copper Mines
Nchimunya Chaamwe,Wenyu Liu,Hongbo Jiang
Research Journal of Applied Sciences , 2012, DOI: 10.3923/rjasci.2010.345.351
Abstract: Zambian underground mines are becoming more mechanized and extensive with the coming in of foreign investors resulting in the deterioration of the research place environment for the miners. In order to improve the underground mine working environment, more stringent monitoring and assessment standards need to be formulated and applied to the mining industry. It has been the main goal of the professionals in academia, government and the private sector to bring improvement in the mine atmosphere and mitigate its hazards. Due to their efforts there has been impressive professional progress in the area of mine ventilation and safety. However, mine disasters continue to occur throughout the world and Zambia in particular. Therefore, a need has been felt for further advances in planning, designing and managing of mines in Zambia particularly with reference to health and safety of miners. Keeping this in view, the research involved assessing the current methods used for monitoring underground mine environments in Zambia. A research involving 6 mining companies are carried out on the Copperbelt province in Zambia. The main objective of the survey research was to find out the current monitoring methods that are being used in Zambian underground mines and how effective they are.
Comparative Study of Bond Orientational Order and Pair Analysis in Describing Local Symmetry in Liquid Metals
Comparative Study of Bond Orientational Order and Pair Analysisin Describing Local Symmetry in Liquid Metals

Kuiying CHEN,Hongbo LIU,Zhuangqi HU,

材料科学技术学报 , 1995,
Abstract: The similarity and difference between the bond orientational order and pair analysis methods have been first identified with the help of molecular dynamics simulation and the steepest descent minimization of potentials techniques. The binary liquid K-Rb alloys are chosen as an example.Results show that the bond orientational order parameters may be a relevant direct measurement on the perfection of an icosahedron. The PA formula (1551 bonded pairs) is, however, responsible for the total number of various icosahedra. In addition, it is found that pair analysis approach is more sensible to local structure than that for bond orientational order.
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