In this paper, we consider an unstable linear parabolic diffusion-reaction PDE system with an actuator at the right boundary via the Dirichlet condition. We begin to derive the first order necessary conditions for the...
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ISBN:
(纸本)9781479947249
In this paper, we consider an unstable linear parabolic diffusion-reaction PDE system with an actuator at the right boundary via the Dirichlet condition. We begin to derive the first order necessary conditions for the open loop finite-time horizon problem using the classical variational approach. Then, we discuss the the state-feedback problem, and obtain the feedback law by formulating the Riccati partial differential equation(PDE). Finally, with the feedback law, we could prove the stability for the state-feedback problem exponential stability with any given decay rate in the time domain without solving the Riccati PDE.
The intersection models, such as delay models and queuing length models, are the foundations of optimal signal timing for urban intersection. Lack of the field data of intersection, it is highly difficult to calibrate...
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In this paper, a new reliable H-infinity filter design problem is proposed for a class of continuous-time sys- tems with sensor saturation and failures. Attention is focused on the analysis and synthesis problems of a...
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In this paper, a new reliable H-infinity filter design problem is proposed for a class of continuous-time sys- tems with sensor saturation and failures. Attention is focused on the analysis and synthesis problems of a full order reliable H-infinity filter such that the filtering error dynamics is asymptotically stable with a guaranteed disturbance rejection atten- uation level -y. It is shown that the filtering error dynamics obtained from the original system plus the filter can be modeled by a linear system with sector bounded nonlinearity. The design conditions are given in terms of solutions to a set of linear matrix inequalities (LMIs). These conditions are then considered in a convex optimization problem with LMIs constraints in order to design an optimal reliable H-infinity filter. A numerical example is given to illustrate the effectiveness of the proposed results.
Human flesh search(HFS), a Web-enabled crowdsourcing phenomenon, originated in China a decade ago. In this article, we present the first comprehensive empirical analysis of HFS, focusing on the scope of HFS activities...
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Human flesh search(HFS), a Web-enabled crowdsourcing phenomenon, originated in China a decade ago. In this article, we present the first comprehensive empirical analysis of HFS, focusing on the scope of HFS activities, the patterns of HFS crowd collaboration process, and the characteristics of HFS participant networks. A survey of HFS participants was conducted to provide an in-depth understanding of the HFS community and various factors that motivate these participants to contribute. This article also advocates a new stream of Web science and social computing research that will be important in predicting the future growth and use of the World Wide Web.
In this paper, the asynchronous H∞ filtering problem for discrete-time Markov jump neural networks is *** the information on the jump mode of the neural networks is not always available, the mode of the filter often ...
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In this paper, the asynchronous H∞ filtering problem for discrete-time Markov jump neural networks is *** the information on the jump mode of the neural networks is not always available, the mode of the filter often doesn't correspond to that of the discrete-time Markov jump neural *** overcome this kind of asynchronous phenomenon, a novel filtering design method is *** the mode of the neural networks and the mode of the filter are subject to two different Markov *** introducing a unified Lyapunov functional, we derive a sufficient condition in terms of linear matrix inequality(LMI) such that the resultant filtering error system is stochastically *** a numerical example is given to demonstrate the effectiveness of the proposed theoretical results.
Quality-relevant monitoring for multiphase batch processes is necessary. Between-phase transitions carry significant quality information and need particular attentions. In this paper, a Just-in-time-learning (JITL) ba...
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ISBN:
(纸本)9781479932757
Quality-relevant monitoring for multiphase batch processes is necessary. Between-phase transitions carry significant quality information and need particular attentions. In this paper, a Just-in-time-learning (JITL) based method is introduced to identify transitions and update modeling dataset of transitions. Due to the non-Gaussian distribution of the samples in the local model, a PLS-SVDD based method is proposed for modeling and monitoring. Fed-batch penicillin fermentation process is tested for performance evaluation of the proposed method.
This paper proposes a predictive maintenance methodology for a machine in manufacturing with deteriorating quality states represented by multiple deteriorating yield levels. Imperfect minor maintenance and perfect maj...
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Cells are the fundamental units of biology,the current experimental approaches are mostly based on studying bulk cell population rather than single cell,which would unavoidably lead to an average result and possibly d...
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Cells are the fundamental units of biology,the current experimental approaches are mostly based on studying bulk cell population rather than single cell,which would unavoidably lead to an average result and possibly disguise cellular heterogeneity of functional *** fact,cellular heterogeneity is a general feature of biological systems and some theoretical and practical problems can be solved only at single-cell *** it is difficult to analyze gene expression at single-cell level single *** PCR has proved to be a highly sensitive nucleic acid quantification technique which can detect single molecule *** sample is diluted and partitioned into hundreds of separate reaction chambers so that each chamber contains only one or no copies of the target *** copies of a sample can be determined by counting the number of positive partitions versus negative partitions after endpoint PCR.A self-priming compartmentalization(SPC)microfluidic digital PCR chip was designed which is capable of performing single molecule amplification of genes from single *** the SPC digital PCR chip,the gene copy number of single cell can be absolute quantify with higher sensitivity,reduced labor time and reagent.
This paper presents an explicit model predictive control approach for a forward dc-dc converter. The objective of the proposed control algorithm is to regulate the output voltage in the case of load variations. We fir...
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ISBN:
(纸本)9781467355339
This paper presents an explicit model predictive control approach for a forward dc-dc converter. The objective of the proposed control algorithm is to regulate the output voltage in the case of load variations. We first develop a signal averaged model for the forward dc-dc converter, and then extend it to a hybrid model. The related optimal control problem is presolved offline to construct a lookup table, and the controller searches for the control law online, thus avoiding any online optimization. An additional control loop is proposed to deal with the problem of load and source voltage variations.
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