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Search Results: 1 - 10 of 69014 matches for " Qiang Yang "
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Applying Wireless Classroom to Build a Highly Interactive Learning Environment  [PDF]
Qiang Yang
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.34080
Abstract: Wireless networks now support Web browsing, email, real-time chat, and access to remote computing resources. With the increasing use of small portable computers, this emerging communications infrastructure will enable many new Internet applications. The innovative project at the Yangtze University is currently exploring how educators can use portable handheld computers with wireless Internet access to improve teaching and learning in both local and wide area network environments.
No Fit Polygon for Nesting Problem Solving with Hybridizing Ant Algorithms  [PDF]
Qiang Yang
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.75040
Abstract:

In design science, these two kinds of problems are mutually nested, however, the nesting could not blind us for the fact that their problem-solving and solution justification methods are different. The ant algorithms research field, builds on the idea that the study of the behavior of ant colonies or other social insects is interesting, because it provides models of distributed organization which could be utilized as a source of inspiration for the design of optimization and distributed control algorithms. In this paper, a relatively new type of hybridizing ant search algorithm is developed, and the results are compared against other algorithms. The intelligence of this heuristic approach is not portrayed by individual ants, but rather is expressed by the colony as a whole inspired by labor division and brood sorting. This solution obtained by this method will be evaluated against the one obtained by other traditional heuristics.

Template-Monomer Interaction in Molecular Imprinting: Is the Strongest the Best?  [PDF]
Xuewen Fu, Qiang Yang, Qiang Zhou, Qiang Lin, Chun Wang
Open Journal of Organic Polymer Materials (OJOPM) , 2015, DOI: 10.4236/ojopm.2015.52007
Abstract: Molecularly imprinted polymers (MIPs) represent a new class of materials possessing high selectivity and affinity for the target molecule. They have been utilized as sensors, catalysts, sorbents for solid-phase extraction, stationary phase for liquid chromatography, mimics of enzymes, receptors, and antibodies. In this research, molecular imprinted polymers (MIPs) for luteolin were prepared using acrylamide, 4-vinylpyridine and 1-allyl-piperazine as functional monomers and ethylene glycol dimethacrylate as cross-linker by non-covalent imprinting method. UV-visible spectra were used to evaluate the interaction strength between the template and the monomers. The composites of the polymers were calculated from elementary analysis. The porous properties of the imprinted polymers have been determined from nitrogen adsorption-desorption isotherms. The imprinting efficiency of the prepared MIPs was evaluated by selective adsorption for luteolin and its structural analogues. Although the interaction strength of monomers to the template was in the order 1-ALPP > 4-VP > AA, the binding affinity of the imprinted polymers towards luteolin was in the order MIP 2 > MIP 3 > MIP 1. Our results demonstrated that the imprinting efficiency was depending not only on the interaction strength between the template and the monomer, but also on the fidelity in transferring the complex into the polymer.
Computation and Analysis of Propellant and Levitation Forces of a Maglev System Using FEM Coupled to External Circuit Model  [PDF]
Shiyou Yang, Lin Yang, Qiang Zhou
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2010, DOI: 10.4236/jemaa.2010.24034
Abstract: This paper studies the propellant and levitation forces of a prototype maglev system where the propellant forces are provided by a linear motor system. For this purpose, the mathematical model and method using finite element method coupled to external circuit model is developed. The details of the propellant and levitation forces for a prototype maglev system under different operating conditions are investigated, and some directions are given for practical engineering applications.
Services Trade and Labor-Demand Elasticities of Service Sector: Empirical Evidence from China  [PDF]
Hao Wei, Qiang Fu, Sui Yang
American Journal of Industrial and Business Management (AJIBM) , 2012, DOI: 10.4236/ajibm.2012.24018
Abstract: This paper analyses the impact of services trade on the labor-demand elasticities of service sector with the data of China from 1982 to 2009.we find that: 1) First, no matter in the long run or in the short term, China’s services export distinctly impacts on the labor-demand elasticities of service sector. In the long-term influence, the substitution effect is much more powerful than the output effect, however, as to the short period, the output effect is a little stronger than the substitution effect; 2) Second, in the long run, we cannot reject the hypothesis of no relationship between service import openness and the labor-demand elasticities of service sector. Whereas, studying the result of the short term, trade liberalization of services import does affect the service sector labor-demand elasticity weakly.
On a half-discrete Hilbert-type inequality similar to Mulholland's inequality
Bicheng Yang,Qiang Chen
International Journal of Mathematical Analysis , 2013,
Abstract: By using the way of weight functions and technique of real analysis,a half-discrete Hilbert-type inequality similar to Mulholland’s inequalitywith a best constant factor is given. The extension with multiparameters,the equivalent forms, the operator expressions are also considered.
Inversion and Feedback Research on the Temperature Control and Crack Prevention for Concrete Crane Beam on Rock Wall
Yang Zhang,Sheng Qiang
International Journal of Image, Graphics and Signal Processing , 2011,
Abstract: Concrete crane beam on a rock wall on a new structure used in underground building has become more common in recent year. But the concrete beam cracking problem always perplexes scientists and engineers. In order to solve this, the construction information inversion and feedback analysis method is applied. A beam section was taken as a prototype experiment. The temperature and construction data was collected to inverse some necessary thermal parameters. According to the characteristics of concrete temperature field, the basic accelerating genetic algorithm was improved. The improved accelerating genetic algorithm has the merits of high precision and fast calculation. With this algorithm, the calculation temperature and measured value are very close, which shows the method is efficiency. Then inversed parameters were applied in the feedback simulation. According to the simulation results, the proper temperature control method was suggested. By this way, the concrete temperature was controlled well and the beams appear no crack in recent two year. The successful application shows that the inversion and feedback analysis of concrete temperature field can reflect the factual performance of concrete and give important direction to engineering construction.
A half-discrete reverse Hilbert-type inequality with a logarithmic kernel
Qiang Chen,Bicheng Yang
Applied Mathematical Sciences , 2012,
Abstract:
On a new reverse Hardy-Littlewood's type inequality
Qiang Chen,Bicheng Yang
Applied Mathematical Sciences , 2012,
Abstract:
Monte Carlo Algorithm for Simulating Reversible Aggregation of Multisite Particles
Qiang Chang,Jin Yang
Physics , 2010, DOI: 10.1103/PhysRevE.83.056701
Abstract: We present an efficient and exact Monte Carlo algorithm to simulate reversible aggregation of particles with dedicated binding sites. This method introduces a novel data structure of dynamic bond tree to record clusters and sequences of bond formations. The algorithm achieves a constant time cost for processing cluster association and a cost between $\mathcal{O}(\log M)$ and $\mathcal{O}(M)$ for processing bond dissociation in clusters with $M$ bonds. The algorithm is statistically exact and can reproduce results obtained by the standard method. We applied the method to simulate a trivalent ligand and a bivalent receptor clustering system and obtained an average scaling of $\mathcal{O}(M^{0.45})$ for processing bond dissociation in acyclic aggregation, compared to a linear scaling with the cluster size in standard methods. The algorithm also demands substantially less memory than the conventional method.
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