Yin X.,Huaiyin Institute of Technology |
You Q.,Huaiyin Institute of Technology |
Jiang Z.,Huaiyin Institute of Technology
Carbohydrate Polymers | Year: 2011
Polysaccharides production from the fruiting body of Tricholoma matsutake was carried out using enzyme assisted extraction methodology. Response surface methodology (RSM), based on a five level, four variable central composite design (CCD), was employed to obtain the best possible combination of extraction temperature (X 1: 54-66 °C), extraction pH (X 2: 3.6-4.4), extraction time (X 3: 2.4-3.6 h), and complex enzyme (the ratio of papain:pectinase:cellulase was 1:1:1) amount (X 4: 1.6-2.4%) for maximum polysaccharides production. The experimental data obtained were fitted to a second-order polynomial equation using multiple regression analysis and also were analyzed by analysis of variance (ANOVA). The 3-D response surface plot and the contour plot derived from the mathematical models were applied to determine the optimal conditions. The optimum extraction conditions were: extraction temperature of 61.8 °C, extraction pH of 4.14, extraction time of 3.2 h, and complex enzyme amount of 2.1% (w/v). Under these conditions, the experimental yield of polysaccharides was 7.53 ± 0.26%, which is well in close agreement with the value predicted by the model. © 2011 Elsevier Ltd. All rights reserved.
Hua H.,Huaiyin Institute of Technology
Match | Year: 2010
The second geometric-arithmetic index GA 2(G) of a graph G was introduced recently by Fath-Tabar et al.  and is defined to be mathematical equation representative wnere e = uv 's one edge in G, and nu(e,G) denotes the number of vertices in G lying closer to u than to v. In this paper, we characterize the tree with the minimum GA% index among the set of trees with given order and diameter. As applications, we deduce the trees with the minimum and second-minimum GA 2 index among the set of trees of given order, respectively. In addition, all the trees minimizing the GA 2 index have been shown to have minimum Szeged index and Wiener index, which deduced a result of  concerning the Wiener index of trees with given diameter.
Wang C.,Huaiyin Institute of Technology
ICCSE 2012 - Proceedings of 2012 7th International Conference on Computer Science and Education | Year: 2012
The accurate value of battery SOC is one of the prerequisites of a pure electric vehicle energy management to achieve optimal control. However, the battery is a highly nonlinear system and its charge-discharge process is difficult to establish accurate mathematical model. Taking into account nonlinear characteristics of BP neural network, and it has parallel structure and ability to learn, so it is suitable for online estimation of battery SOC value. Train BP neural network through Matlab programming, and predict the performance of the battery based on the built neural network model to get the battery SOC prediction. Simulation results show that the the established BP neural network has good adaptability, and is able to predict the mapping relationship between the battery voltage and SOC. This method is access to battery SOC prediction quickly and easily, the maximum error is less than 1% and the results meet the accuracy requirements. © 2012 IEEE.
Gai R.,Huaiyin Institute of Technology
Asian Journal of Control | Year: 2015
This paper is devoted to studying the issue of modeling, forecasting, and optimal feedback control of discrete-time first-order linear stochastic systems with prospective strong intervention (PSI). First, one type of PSI is formulated. Then, one class of induced mechanisms of PSI is characterized, and, with respect to the induced mechanisms, two multi-step forecasting methods for estimating the occurrence time and terminal time of PSI are discussed. Based on these fundamental results, the problem of optimal control with respect to an improved minimum variance performance index is discussed. Finally, the effectiveness and advantages of the proposed control strategy and approach are verified and demonstrated through numerical simulations. © 2014 Chinese Automatic Control Society and Wiley Publishing Asia Pty Ltd.
Zhang T.,Huaiyin Institute of Technology
Automatica | Year: 2015
The objective of Kim (2010) is to give a new delay-dependent full-order robust H∞ filter design method for uncertain discrete-time singular time-delay systems. In the analysis and design procedure, the regularity and absence of impulses of the filtering error system are studied simultaneously. However, an error appeared in the H∞ performance analysis, which is pointed out in this note. © 2015 Elsevier Ltd. All rights reserved.
Tao A.,Huaiyin Institute of Technology
Energy Procedia | Year: 2011
taking energy consumption per ten thousand Yuan unit GDP as energy consumption quality indicator and using, this paper analyses the relationship between energy consumption quality and the level of education and technology of Jiangsu province based on grey relation theory. Conclusion shows that, according the importance order, the influence factors of Jiangsu energy consumption quality is as following: scientific and technological personnel, number of college students per ten thousand in number, number of R&D funds. Therefore ,to improve the energy consumption quality, we should improve technology personnel level and education level.at the same time,we should enlarge fund investment. © 2011 Published by Elsevier Ltd.
Liu J.-G.,Huaiyin Institute of Technology
Chinese Physics B | Year: 2013
The stability of impulsive fractional-order systems is discussed. A new synchronization criterion of fractional-order chaotic systems is proposed based on the stability theory of impulsive fractional-order systems. The synchronization criterion is suitable for the case of the order 0 < q ≤ 1. It is more general than those of the known results. Simulation results are given to show the effectiveness of the proposed synchronization criterion. © 2013 Chinese Physical Society and IOP Publishing Ltd.
Wang Y.,Huaiyin Institute of Technology
Circuits, Systems, and Signal Processing | Year: 2012
An approach to finding digital differentiator window functions is studied. The frequency response of the truncated ideal differentiator is expressed by two parts. One is the ideal frequency response and the other is the deviation on the interval from ω = 0 to ω = π. The deviation expression is the sum of weighted functions, where the general expression of these functions is equal to the half-sum of a pair of sinc sum functions plus π, and each weight is a window constant. Using the properties of the sinc sum function eight properties of the general expression and six properties of the deviation expression are deduced. By these properties both the relative errors of the passband and the change of their ripples can be small if each weight is proper and the truncated ideal differentiator is ideal at ω = 0. From the expression of the deviation a matrix equation with window constants as unknowns can be written. Examples are given about how to write the matrix equations and how to find the optimized window constants. Four new differentiator windows as a family are obtained. These windows belong to the fixed window. Different from existing windows, the new windows are optimized in terms of reducing the relative errors of the passband. Comparisons show that new windows are better or much better than the Hanning, Hamming, Blackman, Kaiser, Chebyshev and polynomial windows in terms of differentiator performances. © Springer Science+Business Media, LLC 2012.
Liu J.-G.,Huaiyin Institute of Technology
Chinese Physics B | Year: 2012
This paper investigates the synchronization problem of fractional-order complex networks with nonidentical nodes. The generalized projective synchronization criterion of fractional-order complex networks with order 0 < q < 1 is obtained based on the stability theory of the fractional-order system. The control method which combines active control with pinning control is then suggested to obtain the controllers. Furthermore, the adaptive strategy is applied to tune the control gains and coupling strength. Corresponding numerical simulations are performed to verify and illustrate the theoretical results. © 2012 Chinese Physical Society and IOP Publishing Ltd.
Cheng X.-C.,Huaiyin Institute of Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2011
In the title complex, [Mn(C10H7N6) 2(H2O)4], the Mn2+ cation is located on a twofold rotation axis and is coordinated by two N atoms from two 5-[4-(imidazol-1-yl)phenyl]tetrazolide ligands and four O atoms from four water molecules, displaying a distorted MnN2O4 octa-hedral geometry. The crystal structure is stabilized by intermolecular O-H⋯N hydrogen bonds involving the coordinated water molecules and the N atoms of the tetrazolide group.