Discrete Dynamics in Nature and Society http://www.hindawi.com The latest articles from Hindawi Publishing Corporation © 2016 , Hindawi Publishing Corporation . All rights reserved. On the Convergence of Solutions for SPDEs under Perturbation of the Domain Wed, 22 Jun 2016 14:27:10 +0000 http://www.hindawi.com/journals/ddns/2016/5425639/ We investigate the effect of domain perturbation on the behavior of mild solutions for a class of semilinear stochastic partial differential equations subject to the Dirichlet boundary condition. Under some assumptions, we obtain an estimate for the mild solutions under changes of the domain. Zhongkai Guo, Jicheng Liu, and Wenya Wang Copyright © 2016 Zhongkai Guo et al. All rights reserved. A Genetic Algorithm with Location Intelligence Method for Energy Optimization in 5G Wireless Networks Tue, 21 Jun 2016 14:14:27 +0000 http://www.hindawi.com/journals/ddns/2016/5348203/ The exponential growth in data traffic due to the modernization of smart devices has resulted in the need for a high-capacity wireless network in the future. To successfully deploy 5G network, it must be capable of handling the growth in the data traffic. The increasing amount of traffic volume puts excessive stress on the important factors of the resource allocation methods such as scalability and throughput. In this paper, we define a network planning as an optimization problem with the decision variables such as transmission power and transmitter (BS) location in 5G networks. The decision variables lent themselves to interesting implementation using several heuristic approaches, such as differential evolution (DE) algorithm and Real-coded Genetic Algorithm (RGA). The key contribution of this paper is that we modified RGA-based method to find the optimal configuration of BSs not only by just offering an optimal coverage of underutilized BSs but also by optimizing the amounts of power consumption. A comparison is also carried out to evaluate the performance of the conventional approach of DE and standard RGA with our modified RGA approach. The experimental results showed that our modified RGA can find the optimal configuration of 5G/LTE network planning problems, which is better performed than DE and standard RGA. Ruchi Sachan, Tae Jong Choi, and Chang Wook Ahn Copyright © 2016 Ruchi Sachan et al. All rights reserved. Impacts of Climate Change on Biological Dynamics Thu, 16 Jun 2016 10:53:10 +0000 http://www.hindawi.com/journals/ddns/2016/9046107/ Gui-Quan Sun, Xue-Zhi Li, Yi Wang, Amit Chakraborty, Zhen Wang, and Yong-Ping Wu Copyright © 2016 Gui-Quan Sun et al. All rights reserved. On the Discrete-Time Queue with Vacations in Random Environment Wed, 15 Jun 2016 12:30:20 +0000 http://www.hindawi.com/journals/ddns/2016/4029415/ A discrete-time queue with vacations in random environment is analyzed. Using the method of supplementary variable, we give the probability generating function (PGF) of the stationary queue length distribution at arbitrary epoch. The PGF of the stationary sojourn time distribution is also derived. And we present the various performance measures such as mean number of customers in the system, mean length of the type- cycle, and mean time that the system resides in phase . In addition, we show that the queue with vacations in random environment can be approximated by its discrete-time counterpart. Finally, we present some special cases of the model and numerical examples. Jianjun Li and Liwei Liu Copyright © 2016 Jianjun Li and Liwei Liu. All rights reserved. Stability and Persistence of an Avian Influenza Epidemic Model with Impacts of Climate Change Wed, 15 Jun 2016 07:42:54 +0000 http://www.hindawi.com/journals/ddns/2016/7871251/ The growing number of reported avian influenza cases has prompted awareness of the importance of research methods to control the spread of the disease. Seasonal variation is one of the important factors that affect the spread of avian influenza. This paper presents a “nonautonomous” model to analyze the transmission dynamics of avian influenza with the effects of climate change. We obtain and discuss the global stability conditions of the disease-free equilibrium; the threshold conditions for persistence, permanence, and extinction of the disease; and the parameters with periodicity for controlling and eliminating the avian influenza. Xiao-Yan Zhao, Shu-Min Guo, Mini Ghosh, and Xue-Zhi Li Copyright © 2016 Xiao-Yan Zhao et al. All rights reserved. Coordination of Advertising Free Riding in Hybrid Channel Supply Chain Wed, 15 Jun 2016 06:52:32 +0000 http://www.hindawi.com/journals/ddns/2016/7423043/ Advertising is a crucial tool for demand creation and market expansion; enterprises in supply chain use it widely to increase sales and improve profits. But the homogeneity of products sold in hybrid channel supply chain magnifies the positive externalities of advertising and leads to serious free-riding problem. To coordinate the supply chain effectively, firstly, this paper classifies hybrid channel supply chain based on the relationship between members and selects horizontally integrated, vertically integrated, and decentralized hybrid channel supply chains as research objects. Then, a demand function considering the common effect of price and advertising is proposed and coordination schemes for different types of supply chains are designed. Finally, a sensitivity analysis is performed to assess the impact of parameters on coordination using orthogonal experiment. Jin Sha, Aihu Wang, Ting Lv, and Wenling Wu Copyright © 2016 Jin Sha et al. All rights reserved. Exponential Stability of Cohen-Grossberg Neural Networks with Impulse Time Window Tue, 14 Jun 2016 11:13:11 +0000 http://www.hindawi.com/journals/ddns/2016/2762960/ This paper concerns the problem of exponential stability for a class of Cohen-Grossberg neural networks with impulse time window and time-varying delays. In our letter, the impulsive effects we considered can stochastically occur at a definitive time window and the impulsive controllers we considered can be nonlinear and even rely on the states of all the neurons. Hence, the impulses here can be more applicable and more general. By utilizing Lyapunov functional theory, inequality technique, and the analysis method, we obtain some novel and effective exponential stability criteria for the Cohen-Grossberg neural networks. These results generalize a few previous known results and numerical simulations are given to show the effectiveness of the derived results. Mei Liu, Haijun Jiang, and Cheng Hu Copyright © 2016 Mei Liu et al. All rights reserved. Comparison Criteria for Nonlinear Functional Dynamic Equations of Higher Order Tue, 14 Jun 2016 06:49:37 +0000 http://www.hindawi.com/journals/ddns/2016/6847956/ We will consider the higher order functional dynamic equations with mixed nonlinearities of the form , on an above-unbounded time scale , where , ,   with  , and . The function is a rd-continuous function such that for . The results extend and improve some known results in the literature on higher order nonlinear dynamic equations. Taher S. Hassan and Said R. Grace Copyright © 2016 Taher S. Hassan and Said R. Grace. All rights reserved. An Improved Multiobjective PSO for the Scheduling Problem of Panel Block Construction Tue, 14 Jun 2016 06:09:05 +0000 http://www.hindawi.com/journals/ddns/2016/5413520/ Uncertainty is common in ship construction. However, few studies have focused on scheduling problems under uncertainty in shipbuilding. This paper formulates the scheduling problem of panel block construction as a multiobjective fuzzy flow shop scheduling problem (FSSP) with a fuzzy processing time, a fuzzy due date, and the just-in-time (JIT) concept. An improved multiobjective particle swarm optimization called MOPSO-M is developed to solve the scheduling problem. MOPSO-M utilizes a ranked-order-value rule to convert the continuous position of particles into the discrete permutations of jobs, and an available mapping is employed to obtain the precedence-based permutation of the jobs. In addition, to improve the performance of MOPSO-M, archive maintenance is combined with global best position selection, and mutation and a velocity constriction mechanism are introduced into the algorithm. The feasibility and effectiveness of MOPSO-M are assessed in comparison with general MOPSO and nondominated sorting genetic algorithm-II (NSGA-II). Zhi Yang, Cungen Liu, Xuefeng Wang, and Weixin Qian Copyright © 2016 Zhi Yang et al. All rights reserved. Equilibrium Signal and Purchase Decision in China’s IPO Net Roadshow: A Dynamic Game Approach Mon, 13 Jun 2016 10:33:18 +0000 http://www.hindawi.com/journals/ddns/2016/6327308/ The net roadshow has been dominant in China’s IPO (initial public offerings) roadshow structure. Considering the dynamic game with incomplete information between the issuer and investor during China’s IPO net roadshow, the quality of the letter of intent is presented as a discrete signal in this paper in accordance with China’s IPO net roadshow characteristics. A signaling game model is established to conclude the issuer’s equilibrium signal and the investor’s purchase action. The issuer disguised a letter of intent to uplift its quality if the disguising cost per share stands below the bidding spread. If the investor judges the letter of intent as high-quality, the basis of purchase is that the opportunity cost per share is less than the expectation on the intrinsic value of the IPO stock. Otherwise the investor rejects purchasing on the condition that the opportunity cost outnumbers the valuation of intrinsic value. In conclusion, there exist unique separating equilibrium and pooling equilibrium as a perfect Bayesian Nash equilibrium, and the existence and uniqueness of their equilibrium domains have been verified by numerical simulation. Finally, the comprehensive empirical studies have validated only one separating and pooling equilibrium existing in China’s real-world IPO market. Yi Zhao and Dong Li Copyright © 2016 Yi Zhao and Dong Li. All rights reserved. Dynamic Discrete GM (1,1) Model and Its Application in the Prediction of Urbanization Conflict Events Mon, 13 Jun 2016 07:20:54 +0000 http://www.hindawi.com/journals/ddns/2016/3861825/ In the empirical researches, the discrete GM (1,1) model is not always fitted well, and sometimes the forecasting error is large. In order to solve this issue, this study proposes a dynamic discrete GM (1,1) model based on the grey prediction theory and the GM (1,1) model. In this paper, we use the equal division technology to fit the concavity and convexity of the cumulative sequence and then construct two dynamic average values. Based on the dynamic average values, we further develop two dynamic discrete GM (1,1) models and provide the gradual heuristics method to draw the initial equal division number and the dichotomy approach to optimize the equal division number. Finally, based on an empirical analysis of the number of conflict events in the urbanization process in China, we verify that the dynamic discrete GM (1,1) model has higher fitting and prediction accuracy than the GM (1,1) model and the discrete GM (1,1) model, and its prediction result is beneficial to the government for prevention and solution of the urbanization conflict events. Ersi Liu, Qiangqiang Wang, Xinran Ge, and Wei Zhou Copyright © 2016 Ersi Liu et al. All rights reserved. A Rising E-Channel Tide Lifts All Boats? The Impact of Manufacturer Multichannel Encroachment on Traditional Selling and Leasing Sun, 12 Jun 2016 07:17:03 +0000 http://www.hindawi.com/journals/ddns/2016/2898021/ Organizing and managing channels of distribution is an important marketing task. Due to the emergence of electronic commerce on the Internet, e-channel distribution systems have been adopted by many manufacturers. However, academic and anecdotal evidence both point to the pressures arising from this new e-channel manufacturing environment. Question marks therefore remain on how the addition of this e-channel affects the traditional marketing strategies of leasing and selling. We set up several two-period dual-channel models in which a manufacturer sells a durable product through both a manufacturer-owned e-channel and an independent reseller (leaser) who adopts selling (leasing) to consumers. Our main results indicate that, direct selling cost aside, product durability plays an important role in shaping the strategies of all members. With either marketing strategy, the additional expansion of an e-channel territory may secure Pareto gains, in which all members benefit. Wei Yan, Youwei Li, Ying Wu, and Mark Palmer Copyright © 2016 Wei Yan et al. All rights reserved. Coordinating a Supply Chain When Manufacturer Makes Cost Reduction Investment in Supplier Tue, 07 Jun 2016 09:37:49 +0000 http://www.hindawi.com/journals/ddns/2016/4762397/ We consider a supply chain consisting of an upstream supplier and a downstream manufacturer, in which the supplier provides a component to the manufacturer, facing a price-sensitive and uncertain demand. The manufacturer makes cost reduction investment in the supplier to improve the supplier’s production efficiency, which benefits the entire supply chain. We derive the optimal investment and operating decisions. Both the centralized and decentralized supply chains are studied. We show that the optimal investment and operating decisions in the decentralized setting may deviate from that in the centralized setting. To avoid the profit loss caused by such a deviation, we develop a coordination mechanism by introducing a combined policy of revenue-sharing policy and investment cost-sharing policy. We also show that the developed coordination mechanism can achieve Pareto improvement for the two players. Shilei Huang, Hong Fu, and Yongkai Ma Copyright © 2016 Shilei Huang et al. All rights reserved. The Control Packet Collision Avoidance Algorithm for the Underwater Multichannel MAC Protocols via Time-Frequency Masking Sun, 05 Jun 2016 13:18:01 +0000 http://www.hindawi.com/journals/ddns/2016/2437615/ Establishing high-speed and reliable underwater acoustic networks among multiunmanned underwater vehicles (UUVs) is basic to realize cooperative and intelligent control among different UUVs. Nevertheless, different from terrestrial network, the propagation speed of the underwater acoustic network is 1500 m/s, which makes the design of the underwater acoustic network MAC protocols a big challenge. In accordance with multichannel MAC protocols, data packets and control packets are transferred through different channels, which lowers the adverse effect of acoustic network and gradually becomes the popular issues of underwater acoustic networks MAC protocol research. In this paper, we proposed a control packet collision avoidance algorithm utilizing time-frequency masking to deal with the control packets collision in the control channel. This algorithm is based on the scarcity of the noncoherent underwater acoustic communication signals, which regards collision avoiding as separation of the mixtures of communication signals from different nodes. We first measure the W-Disjoint Orthogonality of the MFSK signals and the simulation result demonstrates that there exists time-frequency mask which can separate the source signals from the mixture of the communication signals. Then we present a pairwise hydrophones separation system based on deep networks and the location information of the nodes. Consequently, the time-frequency mask can be estimated. Yang Yu, Jie Shi, Ke He, and Peng Han Copyright © 2016 Yang Yu et al. All rights reserved. Joint Inventory, Pricing, and Advertising Decisions with Surplus and Stockout Loss Aversions Sun, 05 Jun 2016 08:41:41 +0000 http://www.hindawi.com/journals/ddns/2016/1907680/ The newsvendor models considering decision-makers’ behavioral factors remain a fruitful research area in operation management field in past decade. In this paper, we further extend the current literatures to look into joint inventory, pricing, and advertising decisions considering loss aversion effects under the newsvendor setting. The purpose is to explore how the loss aversions affect the optimal policy of order quantity, price, and advertising effort level. We present an integrated utility model to measure both economic payoff and loss aversion utility of the newsvendor, where surplus loss aversion and stockout loss aversion are first separately defined and quantified. Then, we analyze the optimal solution conditions of the integrated model under exogenous and endogenous price cases, respectively. Under exogenous price case, we find that the uniquely optimal policy exists and is presented in the closed form. Under endogenous price case, the optimal policy is determined under mild conditions; we also provide the solutions when order quantity factor or advertising effort level is fixed in this case. In addition, the sensitivity analysis shows that the loss aversions affect the optimal decisions of order quantity, price, and advertising effort level in a systematic way. Bing-Bing Cao, Zhi-Ping Fan, Hongyan Li, and Tian-Hui You Copyright © 2016 Bing-Bing Cao et al. All rights reserved. Availability Equivalence Analysis of a Repairable Multistate Parallel-Series System with Different Performance Rates Tue, 31 May 2016 16:04:58 +0000 http://www.hindawi.com/journals/ddns/2016/3175269/ This paper extends the concept of availability equivalence from general binary system to discrete multistate system with different performance rates. It considers a repairable discrete multistate parallel-series system with different performance rates. The system availability is defined as the ability of the system to satisfy consumer demand. The universal generating function technique is adopted to derive the availability of both original and improved systems according to factor method and standby redundancy method. Two types of availability equivalence factors of the system are analyzed. A numerical example is presented to illustrate the theoretical results obtained in this paper. Linmin Hu, Dequan Yue, and Ruiling Tian Copyright © 2016 Linmin Hu et al. All rights reserved. Risk-Averse Evolutionary Game Model of Aviation Joint Emergency Response Sun, 29 May 2016 14:06:53 +0000 http://www.hindawi.com/journals/ddns/2016/9031351/ We study effects of risk-averse attitude of both participators in aviation joint emergency response on the coevolution of cooperation mechanisms and individual preferences between airport and nonprofit organization. First, based on the current aviation joint emergency mechanism in China, we put forward two mechanisms to select the joint nonprofit organization, including reputation cooperation and bidding competition. Meanwhile, we consider two preferences including altruism and selfishness. Then we build replicator dynamics equations using the theory of conditional value-at-risk (CVaR) taking risk aversion attitude into account. Finally, we introduce the factor of government and give all participators some suggestions. We show that the risk-averse attitude of the other game participator affects the one participator’s decision and the effects subject to some parameters. Wei Pan, Ying Guo, and Shujie Liao Copyright © 2016 Wei Pan et al. All rights reserved. Helmholtz Theorem for Nondifferentiable Hamiltonian Systems in the Framework of Cresson’s Quantum Calculus Thu, 26 May 2016 15:18:00 +0000 http://www.hindawi.com/journals/ddns/2016/8073023/ We derive the Helmholtz theorem for nondifferentiable Hamiltonian systems in the framework of Cresson’s quantum calculus. Precisely, we give a theorem characterizing nondifferentiable equations, admitting a Hamiltonian formulation. Moreover, in the affirmative case, we give the associated Hamiltonian. Frédéric Pierret and Delfim F. M. Torres Copyright © 2016 Frédéric Pierret and Delfim F. M. Torres. All rights reserved. An Impulsive Three-Species Model with Square Root Functional Response and Mutual Interference of Predator Thu, 26 May 2016 07:53:46 +0000 http://www.hindawi.com/journals/ddns/2016/3897234/ An impulsive two-prey and one-predator model with square root functional responses, mutual interference, and integrated pest management is constructed. By using techniques of impulsive perturbations, comparison theorem, and Floquet theory, the existence and global asymptotic stability of prey-eradication periodic solution are investigated. We use some methods and sufficient conditions to prove the permanence of the system which involve multiple Lyapunov functions and differential comparison theorem. Numerical simulations are given to portray the complex behaviors of this system. Finally, we analyze the biological meanings of these results and give some suggestions for feasible control strategies. Zhen Wang, Yuanfu Shao, Xianjia Fang, and Xiangmin Ma Copyright © 2016 Zhen Wang et al. All rights reserved. Almost Sure Stability of Stochastic Neural Networks with Time Delays in the Leakage Terms Wed, 25 May 2016 11:12:48 +0000 http://www.hindawi.com/journals/ddns/2016/2487957/ The stability issue is investigated for a class of stochastic neural networks with time delays in the leakage terms. Different from the previous literature, we are concerned with the almost sure stability. By using the LaSalle invariant principle of stochastic delay differential equations, Itô’s formula, and stochastic analysis theory, some novel sufficient conditions are derived to guarantee the almost sure stability of the equilibrium point. In particular, the weak infinitesimal operator of Lyapunov functions in this paper is not required to be negative, which is necessary in the study of the traditional moment stability. Finally, two numerical examples and their simulations are provided to show the effectiveness of the theoretical results and demonstrate that time delays in the leakage terms do contribute to the stability of stochastic neural networks. Mingzhu Song, Quanxin Zhu, and Hongwei Zhou Copyright © 2016 Mingzhu Song et al. All rights reserved. Construction of an Early Risk Warning Model of Organizational Resilience: An Empirical Study Based on Samples of R&D Teams Mon, 23 May 2016 14:18:35 +0000 http://www.hindawi.com/journals/ddns/2016/4602870/ Facing fierce competition, it is critical for organizations to keep advantages either actively or passively. Organizational resilience is the ability of an organization to anticipate, prepare for, respond to, and adapt to incremental change and sudden disruptions in order to survive and prosper. It is of particular importance for enterprises to apprehend the intensity of organizational resilience and thereby judge their abilities to withstand pressure. By conducting an exploratory factor analysis and a confirmatory factor analysis, this paper clarifies a five-factor model for organizational resilience of R&D teams. Moreover, based on it, this paper applies fuzzy integrated evaluation method to build an early risk warning model for organizational resilience of R&D teams. The application of the model to a company shows that the model can adequately evaluate the intensity of organizational resilience of R&D teams. The results are also supposed to contribute to applied early risk warning theory. Si-hua Chen Copyright © 2016 Si-hua Chen. All rights reserved. Game Models on Optimal Strategies in a Tourism Dual-Channel Supply Chain Sun, 22 May 2016 09:24:32 +0000 http://www.hindawi.com/journals/ddns/2016/5760139/ This paper explores a two-echelon tourism supply chain consisting of a hotel and an online travel agency. The upside hotel rooms can be sold through the downside hotel alliance and online travel agency. The hotel alliance, selling rooms at a lower price, is a direct sale platform with a negligible entry fee. Notwithstanding, the online travel agency sells the room at a higher price with related personalized service. Customers will be refunded partially in case of their cancellation or no-show. An integrated model and two decentralized models based on Bertrand and Stackelberg games are developed, respectively. The results show that when the wholesale price is lower than a certain value, both the hotel and the online travel agency can gain more profit from the Stackelberg game than that from the Bertrand game. In the case that the hotel allows overbooking, the optimal overbooking quantity is obtained. If the overbooking proportion is too high, overbooking is profitable for the hotel only when the overbooking cost is lower than a certain value. At the end of the study, some experiments are conducted to analyze the sensitivity of the optimal prices and profits in the light of certain parameters. Lei Yang, Jingna Ji, and Kebing Chen Copyright © 2016 Lei Yang et al. All rights reserved. Attractor and Boundedness of Switched Stochastic Cohen-Grossberg Neural Networks Thu, 19 May 2016 06:14:09 +0000 http://www.hindawi.com/journals/ddns/2016/4958217/ We address the problem of stochastic attractor and boundedness of a class of switched Cohen-Grossberg neural networks (CGNN) with discrete and infinitely distributed delays. With the help of stochastic analysis technology, the Lyapunov-Krasovskii functional method, linear matrix inequalities technique (LMI), and the average dwell time approach (ADT), some novel sufficient conditions regarding the issues of mean-square uniformly ultimate boundedness, the existence of a stochastic attractor, and the mean-square exponential stability for the switched Cohen-Grossberg neural networks are established. Finally, illustrative examples and their simulations are provided to illustrate the effectiveness of the proposed results. Chuangxia Huang, Jie Cao, and Peng Wang Copyright © 2016 Chuangxia Huang et al. All rights reserved. The Application of Recurrence Quantification Analysis in Detection of Abrupt Climate Change Tue, 17 May 2016 14:17:45 +0000 http://www.hindawi.com/journals/ddns/2016/2689429/ This paper explores the possible application of recurrence quantification analysis in the detection of abrupt change of the dynamic structure of the climate system. It is discovered in the recurrence quantification analysis of the typical chaotic system-logistic model that the method may well distinguish the state of logistic model with different parameters, demonstrating its potential value in identifying the dynamic change of the system. When recurrence quantification analysis is later applied to the detection of abrupt change of average daily precipitation of all regions in China, the result indicates that the abrupt change of the dynamic structure corresponding to the precipitation of China in recent 50 years occurred in the late 1970s and the early 1980s. It is in agreement with the Chinese commonly recognized years of abruption; therefore the effectiveness is further demonstrated regarding the recognition of complexity of dynamical system. Wen Zhang, Guoling Feng, and Qunqun Liu Copyright © 2016 Wen Zhang et al. All rights reserved. Border Collision Bifurcations in a Generalized Model of Population Dynamics Tue, 17 May 2016 11:24:04 +0000 http://www.hindawi.com/journals/ddns/2016/9724139/ We analyze the dynamics of a generalized discrete time population model of a two-stage species with recruitment and capture. This generalization, which is inspired by other approaches and real data that one can find in literature, consists in considering no restriction for the value of the two key parameters appearing in the model, that is, the natural death rate and the mortality rate due to fishing activity. In the more general case the feasibility of the system has been preserved by posing opportune formulas for the piecewise map defining the model. The resulting two-dimensional nonlinear map is not smooth, though continuous, as its definition changes as any border is crossed in the phase plane. Hence, techniques from the mathematical theory of piecewise smooth dynamical systems must be applied to show that, due to the existence of borders, abrupt changes in the dynamic behavior of population sizes and multistability emerge. The main novelty of the present contribution with respect to the previous ones is that, while using real data, richer dynamics are produced, such as fluctuations and multistability. Such new evidences are of great interest in biology since new strategies to preserve the survival of the species can be suggested. Lilia M. Ladino, Cristiana Mammana, Elisabetta Michetti, and Jose C. Valverde Copyright © 2016 Lilia M. Ladino et al. All rights reserved. Positive Filtering with -Gain for Discrete-Time Positive Systems Mon, 16 May 2016 12:35:15 +0000 http://www.hindawi.com/journals/ddns/2016/1967875/ This paper is concerned with the positive filtering problem for discrete-time positive systems under the -induced performance. We aim to propose a pair of positive filters with error-bounding features to estimate the output of positive systems. A novel characterization is first constructed so that the filtering error system is asymptotically stable with a prescribed -induced performance. Then, necessary and sufficient conditions for the existence of required filters are presented, and the obtained results are expressed as linear programming problems. Moreover, it is pointed out that the results can be easily checked by standard software. In addition, a numerical example is given to show the effectiveness of the proposed design procedures. Xiaoming Chen Copyright © 2016 Xiaoming Chen. All rights reserved. Transit-Based Emergency Evacuation with Transit Signal Priority in Sudden-Onset Disaster Mon, 16 May 2016 12:05:33 +0000 http://www.hindawi.com/journals/ddns/2016/3625342/ This study presents methods of transit signal priority without transit-only lanes for a transit-based emergency evacuation in a sudden-onset disaster. Arterial priority signal coordination is optimized when a traffic signal control system provides priority signals for transit vehicles along an evacuation route. Transit signal priority is determined by “transit vehicle arrival time estimation,” “queuing vehicle dissipation time estimation,” “traffic signal status estimation,” “transit signal optimization,” and “arterial traffic signal coordination for transit vehicle in evacuation route.” It takes advantage of the large capacities of transit vehicles, reduces the evacuation time, and evacuates as many evacuees as possible. The proposed methods were tested on a simulation platform with Paramics V6.0. To evaluate and compare the performance of transit signal priority, three scenarios were simulated in the simulator. The results indicate that the methods of this study can reduce the travel times of transit vehicles along an evacuation route by 13% and 10%, improve the standard deviation of travel time by 16% and 46%, and decrease the average person delay at a signalized intersection by 22% and 17% when the traffic flow saturation along an evacuation route is and , respectively. Ciyun Lin and Bowen Gong Copyright © 2016 Ciyun Lin and Bowen Gong. All rights reserved. Dynamics Analysis and Biomass Productivity Optimisation of a Microbial Cultivation Process through Substrate Regulation Mon, 16 May 2016 08:37:16 +0000 http://www.hindawi.com/journals/ddns/2016/3685941/ A microbial cultivation process model with variable biomass yield, control of substrate concentration, and biomass recycle is formulated, where the biochemical kinetics follows an extension of the Monod and Contois models. Control of substrate concentration allows for indirect monitoring of biomass and dissolved oxygen concentrations and consequently obtaining high yield and productivity of biomass. Dynamics analysis of the proposed model is carried out and the existence of order-1 periodic solution is deduced with a formulation of the period, which provides a theoretical possibility to convert the state-dependent control to a periodic one while keeping the dynamics unchanged. Moreover, the stability of the order-1 periodic solution is verified by a geometric method. The stability ensures a certain robustness of the adopted control; that is, even with an inaccurately detected substrate concentration or a deviation, the system will be always stable at the order-1 periodic solution under the control. The simulations are carried out to complement the theoretical results and optimisation of the biomass productivity is presented. Kaibiao Sun, Shan Liu, Andrzej Kasperski, and Yuan Tian Copyright © 2016 Kaibiao Sun et al. All rights reserved. Fiscal Decentralization and Regional Financial Efficiency: An Empirical Analysis of Spatial Durbin Model Thu, 12 May 2016 15:01:26 +0000 http://www.hindawi.com/journals/ddns/2016/6597138/ Based on panel data covering the period from 2003 to 2012 in China’s 281 prefecture-level cities, we use superefficiency SBM model to measure regional financial efficiency and empirically test the spatial effects of fiscal decentralization on regional financial efficiency with SDM. The estimated results indicate that there exist significant spatial spillover effects among regional financial efficiency with the features of time inertia and spatial dependence. The positive promoting effect of fiscal decentralization on financial efficiency in local region depends on the symmetry between fiscal expenditure decentralization and revenue decentralization. Additionally, there exists inconsistency in the spatial effects of fiscal expenditure decentralization and revenue decentralization on financial efficiency in neighboring regions. The negative effect of fiscal revenue decentralization on financial efficiency in neighboring regions is more significant than that of fiscal expenditure decentralization. Jianmin Liu, Xiaomei Hu, and Hongli Tang Copyright © 2016 Jianmin Liu et al. All rights reserved. A Hybrid IP/GA Approach to the Parallel Production Lines Scheduling Problem Thu, 12 May 2016 07:50:30 +0000 http://www.hindawi.com/journals/ddns/2016/5201937/ A special parallel production lines scheduling problem is studied in this paper. Considering the time window and technical constraints, a mixed integer linear programming (MILP) model is formulated for the problem. A few valid inequalities are deduced and a hybrid mixed integer linear programming/constraint programming (MILP/CP) decomposition strategy is introduced. Based on them, a hybrid integer programming/genetic algorithm (IP/GA) approach is proposed to solve the problem. At last, the numerical experiments demonstrate that the proposed solution approach is effective and efficient. Huizhi Ren and Shenshen Sun Copyright © 2016 Huizhi Ren and Shenshen Sun. All rights reserved.