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Heze, China

Peng Y.,Shanghai JiaoTong University | Peng Y.,Heze University | Li Y.,Shanghai JiaoTong University
Food Hydrocolloids | Year: 2014

The combined effects of plant essential oils (lemon, thyme, cinnamon) on the physical and structural properties of chitosan-based films were investigated. Results showed that the apparent viscosity and average particle size of lemon essential oils were significantly lower than that of the thyme and cinnamon essential oils. The combined use of two kinds of essential oils decreased the particle size and water vapor permeability compared with the use of a single essential oil. However, the combined use of two kinds of essential oils balanced the antibacterial properties of the single essential oil. SEM analysis showed that the oil droplets were homogenously distributed across the film. The emulsification was obviously observed in chitosan/lemon/cinnamon essential oils composite films due to the electrostatic interaction of limonene and cinnamaldehyde. This study revealed that an active chitosan film could be obtained by the combined use of two kinds of essential oils in the matrix, which might provide a new formulation option for developing antimicrobial film. © 2013. Source


Liu X.,Heze University
International Journal of Digital Content Technology and its Applications | Year: 2011

The problem of mobile agent (MA) focuses on planning an optimal path with respect to tasks andnetwork restrictions when migrating to several hosts. This problem can be solved by using the antcolony optimization (ACO) algorithm, which is an evolutionary algorithm with self-adaptability andparallelism, positive feedback and heuristic searching. However, the conventional ACO algorithmrequires a large amount of time for converging to the optimal. In this paper, the complex networkstheory (CNT) is applied associated with the ACO and generates a new improved ACO for the problemof mobile agent. By introducing the "degree" conception of CNT to the state transition rules of ACO,the MA problem is then better modeled. Further, the pheromone evaporation coefficient is alsoadaptively determined with respect to the fitness improvement of recent evolutions. Experimentalresults demonstrates that the proposed CNT based ACO method is effective and efficient in solving theMA problem. The same idea may be also applied to other optimization problems, such as assignmentproblems, vehicle routing problems, scheduling problems etc. Source


Lijin Z.,Heze University
International Journal of Digital Content Technology and its Applications | Year: 2011

As a kind of mass media which is generally favored by publics Sports video occupies a very important position in people's daily life. How to quickly and easily retrieve videos which one really needs or is interested in has become a hot research in recent years. Based on previous studies, aiming to the sports videos' characteristics of complexity and changeability, this paper provides an adaptive dual-threshold shot transition detection method and selects six common sports video shots, which are classified at the category level. By comparing the low-level video feature differences in the six types of video shots, this paper extracts low-level features including motion information, color, and inter-frame pixel difference, etc. Then through C4.5 decision tree training, the rules from low-level features to high-level meanings are established, so as to achieve a good shot classification effect. Source


Ailing W.,Heze University
Journal of Convergence Information Technology | Year: 2011

Large amount of data is stored in distributed web node as Internet and distributed database develops, it is impossible to store these data in single node on account of communication, efficiency and security. Through research was conducted on mining association rules in the distributed database system and classical Apriori algorithm was extended based on transactional database system. Then an efficient algorithm that get association rules from frequent itemsets was presented. Experiment results show that the algorithm has sound extension, short time complexity and small communication cost. Source


In order to further study on the performance of improved Lyot depolarizer, the method of superposition of multiple beam is proposed to analyse the polarization dependence of depolarizing performance. It is showed by theoretical analysis that the degree of depolarization (D) is ideal when vibration azimuth angle (VAA) of linearly polarized light is 0° or 90° on the basis of large enough wedge angle. In general, the D is the worst when VAA is 45°. However, when the depolarizer is equivalent to a 1/4 wave plate for incidence wavelength, the D of any VAA is ideal. The theoretical results are well verified by experiments. The D is over 99% when total retadation is as same as a 1/4 wave plate by changing incidence angle. The study provide a new reference for the theoretical analysis and design of depolarizer. Source

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