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Predicting residual life of cable plays a key role in ship management. In this paper, the Grey Linear Regression Model is used for residual life prediction of shipboard cable under influence of multi-factors. The method is proved effectively by the comparison between the actual aging data and the data acquired by the traditional Arrhenius Equation.
The principle and basic characteristics (no aftereffect and stability) of Markov chain, and the method of statistical forecast analysis of random phenomena were introduced, then s the product market forecasting before the establishment of the supply chain was studied, and a forecastable Markov model about the occupancy rate of market based on the stochastic process of occupancy rate of sale market...
In order to optimize the capacity of farmers' income persistently increasing, in this paper we analyze 8 factors affecting farmers' income increasing using PLS model based on the statistical data of Heilongjiang reclamation from 2000 to 2008. The study shows that wage incomes, agricultural subsidy and tax reducing still account for a great proportion of farmers' net incomes, but the level of agricultural...
Traffic congestion has been a long-held social problem because of the increasing number of vehicles. In this paper, we apply a pheromone model to a traffic signal control in order to alleviate the traffic congestion. The pheromone model is a tool to communicate among insects (e.g., ants) for their crowd action. In our target problem, the pheromone is strewed by vehicles in a trail across the road...
This paper proposes a new mathematical method to solve min-max predictive controller for a class of constrained linear Multi Input Multi Output (MIMO) systems. A parametric uncertainty state space model is adopted to describe the dynamic behavior of the real process. Since the resulting optimization problem is non convex, a deterministic global optimization technique is adopted to solve it which is...
The purpose of the research on DBH growth model was to provide a scientific basis for the management and development of larch in northeast (DBH is the abbreviation of diameter at breast height). The six growth equations of Richard, Korf, Schumacher, Clare, Levakovic, Mitscherlish were used to fit DBH growth model of larch in northeast. The weights of these models were determined by means of variation...
Least Squares Support Vector Machines(LSSVM) regression principle and sparsity configuration were introduced. In this paper online dynamic modeling based on Sparse LSSVM(SLSSVM) was proposed for wood drying process with strong coupling and nonlinear characteristics. The sample data of Fraxinus mandshurica in the speed-down drying stage were gathered in the experiments of a downscaled industrial wood...
This study proposes linear model predictive control (MPC) based on ARX models in incremental form. Feedforward action for external disturbance can eliminate the effect of unmeasured disturbance, which is popular in process industries. Simulation example illustrates the robust performance of the proposed approach.
The objective of this work is the development of predictive controller of heat exchanger and addresses the difficulties in tuning a predictive control, predictive control and state feedback controller is used to regulate the temperature of a heat exchanger. The identification of the heat exchanger is done by using the step identification technique. Although the PI controller is widely used for these...
This article describes a sensory mapping algorithm based on the simultaneous application of data mining on two sets of data, corresponding to two processes governing customers' preferences: The sensory process, which governs the acceptance of a product as a function of hedonic variables, and the analytical process, which relate the sensory responses to objective analytical properties of the product;...
In this paper, we compare the costs and efficiency arising from the delta-neutral dynamic hedging of options, using two possible values for the delta of the option. The first one is the traditional Black-Scholes delta, while the second one is the GARCH option pricing delta, namely the delta of the option in the generalized Black-Scholes model with a volatility calibrated from GARCH model. Both our...
The In0.53Ga0.47As interdigitated lateral p-i-n photodiode (ILPP) is a a cheap and affordable device to meet growing demands of optical communication networks operating at speeds below 10 Gbps. A ILPP model utilizing In0.53Ga0.47As as the absorbing layer was developed and optimized statistically using fractional factorial design (FFD) methodology. Seven model factors were investigated and a new analytical...
The increasingly large demand for data storage has spurred on the development of systems that rely on the aggregate performance of multiple hard drives. In many of these applications, reliability and availability are of utmost importance. It is therefore necessary to closely scrutinize a complex storage system's reliability characteristics. In this paper, we use Markov models to rigorously demonstrate...
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