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Search Results: 1 - 10 of 43104 matches for " Jing Jiang "
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A Self-Adaptive Parallel Encryption Algorithm Based on Discrete 2D-Logistic Map  [PDF]
Jing Wang, Guoping Jiang
International Journal of Modern Nonlinear Theory and Application (IJMNTA) , 2013, DOI: 10.4236/ijmnta.2013.21A011
Abstract:

A self-adaptive parallel encryption algorithm based on discrete 2D-Logistic map is developed according to the position scrambling and diffusion of multi-direction in variable space of spatial chaos. The binary sequences b1b2b3···bn are obtained according to the user key, in which the binary sequence 0 and 1 denote distribution mode of processors and the number of binary sequence n denotes cycle number. Then the pseudorandom 2D matrix is generated by 2D-Logistic map, and adaptive segmentation is applied in image matrix and pseudorandom matrix according to the value and the number of binary sequence. The parallel operation is used among blocks to improve efficiency and meet real-time demand in transmission processes. However, the pixel permutation is applied in partitioned matrix through ergodic matrix generated by pseudo-random matrix-block to decrease the correlation of adjacent pixels. Then the pixel substitution is used for fully diffusing through cipher block chaining mode until n cycles. The proposed algorithm can meet the three requirements of parallel operation in image encryption and the real-time requirement in transmission processes. The security is proved by theoretical analysis and simulation results.

Effects of Light and Monosulfuron on Growth and Photosynthetic Pigments of Anabaena Flos-Aquae Breb  [PDF]
Jianying SHEN, Jing JIANG, Peizhong ZHENG
Journal of Water Resource and Protection (JWARP) , 2009, DOI: 10.4236/jwarp.2009.16049
Abstract: The effects of monosulfuron on growth and photosynthetic pigments of the nitrogen-fixing cyanobacterium Anabaena flos-aquae grown exposed to 2000-, 3000-, and 4000-lux light intensity were studied. Exposed to three light intensities, the seven concentrations of monosulfuron tested can significantly inhibit algal growth in a dose-dependent manner. The cell numbers and growth rate were decreased with the increase in mono-sulfuron concentration, and A. flos-aquae had different degrees of sensitivity to monosulfuron with the most sensitive light intensity being 4000-lux followed by 3000-lux and 2000-lux. The herbicide monosulfuron appeared to have different effects on the synthesis of photosynthetic pigments. The chlorophyll appeared to tackle monosulfuron concentrations. The caroteniod content of algae treated with 0.008 and 0.08 mg/L monosulfuron exposed to 2000-lux had a different stimulatory effect from that of treatments exposed to 3000-lux and 4000-lux, but an inhibitory effect at concentration above 0.8 mg/L. The effect of monosulfuron on biliprotein in cells of A. flos-aquae exposed three light intensities displayed contrary dose dependence.
On the Convergence of Monotone Lattice Matrices  [PDF]
Jing Jiang, Lan Shu, Xin’an Tian
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.46125
Abstract: Since lattice matrices are useful tools in various domains like automata theory, design of switching circuits, logic of binary relations, medical diagnosis, markov chains, computer network, traffic control and so on, the study of the properties of lattice matrices is valuable. A lattice matrix A is called monotone if A is transitive or A is monotone increasing. In this paper, the convergence of monotone matrices is studied. The results obtained here develop the corresponding ones on lattice matrices shown in the references.
Empirical Research on Influencing Factors of Human Resources Management Outsourcing Degree  [PDF]
Lihua Zhao, Jiang Li, Jing Li
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.53B036
Abstract:

In this paper we review the human resources management outsourcing research in domestic and overseas, establish a model and then propose research hypotheses. With the empirical research method, we take the questionnaire investigation and research on enterprise human resources department manager or staff, and then take statistical analysis to them with SPSS software. From the research results, we come to a conclusion that top intervention, strategic position of the function and the asset specificity has more significant impact to enterprise human resources management outsourcing degree, thus, providing reference opinions for enterprise human resources outsourcing.

Corporate Image Cognition Influence Perceived Quality and Purchase Intention Empirical Research  [PDF]
Jing Li, Jiang Li, Yongbiao Zheng
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.53B035
Abstract:

Based on the theory of corporate image and perceived quality, we researched influence of consumers corporate image cognition on consumers perceived quality and purchase intention. We take the telecoms operator as practical example to do questionnaire survey and analyze the data with SPSS16.0 and structural equation model; the research results show that consumers’ corporate image cognition directly and prominently affects perceived quality instead of consumer purchase intention; It also shows that in china marketing environment, the social image of corporate image has the greatest effect on consumer perceived quality, followed by staff image and marketing image.

Research on Downlink Precoding for Interference Cancellation in Massive MIMO Heterogeneous UDN  [PDF]
Hua He He, Jing Jiang, Rong Jin
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.61026
Abstract: In order to solve the data surge brought by largescale increasing of mobile de-vices, Massive MIMO ultra dense networking can greatly improve the system spectral efficiency and energy efficiency. It plays an important role in coping with the exponential growth of the business, but also brought big problems and challenges. For heterogeneous ultra dense networks, both macro and femto users are facing with both the cross-layer interference and co-layer in-terference. The precoding technology studied in this paper resolves the cross-layer interference and co-layer interference for macro users and femto users, and lays a theoretical foundation for the deployment of heterogeneous and ultra dense networks.
The strategy of improving convergence of genetic algorithm
Jiang Jing,Meng Lidong
TELKOMNIKA : Indonesian Journal of Electrical Engineering , 2012, DOI: 10.11591/telkomnika.v10i8.1641
Abstract: Premature convergence is the main obstacle to the application of genetic algorithm. The study on convergence of GA is always one of the most important theoretical issues. Via analyzing the convergence rate of GA, the average computational complexity can be implied and the optimization efficiency of GA can be judged. This paper proposed an approach to calculating the first expected hitting time and analyzed the bounds of the first hitting time of concrete GA using the proposed approach. And this paper proposed a strategy which included transformation of fitness function, self-adaptive crossover and mutation probability and close relative breeding avoidance method in order to overcome premature convergence.
Self-Tuning and de Sitter Brane Intersections in the 6-Dimensional Brane Models
Jing Jiang,Tianjun Li
Physics , 2001, DOI: 10.1140/epjc/s2002-01076-3
Abstract: We study the self-tuning of general brane junctions and brane networks on the 6-dimensional space-time. For the general brane junctions, there may exist one fine-tuning among the brane tensions. For the brane networks, similar to the 5-dimensional self-tuning brane models, the brane tensions can be set arbitrarily and there exists the singularity for the metric and bulk scalar. And if we want to regularize the singularity, we will introduce the fine-tuning among the brane tensions. In addition, because the 4-dimensional cosmological constant we observe may be positive and very small, we discuss the brane network with de Sitter brane intersections by introducing a bulk scalar.
Nonlinear Steam Valve Adaptive Controller Design for the Power Systems  [PDF]
Nan Jiang, Xiangyong Chen, Ting Liu, Bin Liu, Yuanwei Jing
Intelligent Control and Automation (ICA) , 2011, DOI: 10.4236/ica.2011.21004
Abstract: Considering generator rotor and valve by external disturbances for turbine regulating system, the nonlinear large disturbance attenuation controller and parameter updating law of turbine speed governor system are designed using backstepping method. The controller not only considers transmission line parameter uncer-tainty, and has attenuated the influences of large external disturbances on system output. The nonlinear con-troller does not have the sensitivity to the influences of external disturbances, but also has strong robustness for system parameters variation, which is because of the transmission line uncertainty being considered in internal disturbances. The simulation results show that the control effect of the large disturbance attenuation controller more advantages by comparing with the control performance of conventional nonlinear robust controller.
Cost Control of the Transmission Congestion Management in Electricity Systems Based on Ant Colony Algorithm  [PDF]
Bin Liu, Jixin Kang, Nan Jiang, Yuanwei Jing
Energy and Power Engineering (EPE) , 2011, DOI: 10.4236/epe.2011.31003
Abstract: This paper investigates the cost control problem of congestion management model in the real-time power systems. An improved optimal congestion cost model is built by introducing the congestion factor in dealing with the cases: opening the generator side and load side simultaneously. The problem of real-time congestion management is transformed to a nonlinear programming problem. While the transmission congestion is maximum, the adjustment cost is minimum based on the ant colony algorithm, and the global optimal solu-tion is obtained. Simulation results show that the improved optimal model can obviously reduce the adjust-ment cost and the designed algorithm is safe and easy to implement.
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