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Shen L.,Zhejiang Agriculture and Business college
Journal of Convergence Information Technology | Year: 2012

A visual saliency detection method is proposed in this paper, which is fulfilled in a fully automatic manner. We regard the likeness of a pixel to its surroundings as local feature. Self-resemblance measured between local features results in a map where each pixel indicates the statistical likelihood of saliency. Our method is compared with other saliency detection approaches using an acknowledged public image datasets. In addition, we apply our proposed method in the application of image retargeting and object segmentation. The experimental results show that our algorithm outperforms the other state-of-art methods. Source

Duan X.,Zhejiang Agriculture and Business college
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

This paper investigates the observer-based H ∞ control problem for a class of discrete-time Takagi-Sugeno fuzzy neural networks with both random communication packet losses. The random data losses are described by a Bernoulli distributed white sequence that obeys a conditional probability distribution. In the presence of random packet losses, sufficient conditions for the existence of an observer-based feedback controller are derived, such that the closed-loop control system is asymptotically mean-square stable and preserves a guaranteed H ∞ performance. Finally, a numerical example is provided to illustrate the effectiveness of the developed theoretical results. © 2013 Springer-Verlag Berlin Heidelberg. Source

Chen J.,Zhejiang University | Mao L.,Zhejiang University of Technology | Mi H.,Zhejiang University | Zhao Y.,Zhejiang Agriculture and Business college | And 2 more authors.
Acta Physiologiae Plantarum | Year: 2014

To study the detachment stress on the ripeness of strawberry fruit, physiological characteristics of strawberry fruit on and off plant during ripeness and senescence processes were investigated. The results indicated that the ripeness of strawberry fruit upon detachment was accelerated, in terms of firmness, soluble solid content and especially color development. The color of fruit off plant changed rapidly from white to full red in 1-2 days. The respiratory rate in fruit off plant was strengthened, higher than that on plant. Abscisic acid level and ethylene production in fruit off plant were also higher than those on plant and auxin degradation was exacerbated by detachment. Expression levels of FaMYB1, FabHLH3 and FaTTG1 were generally reduced with phenotypes of redder color and more anthocyanin accumulation in fruit off plant. Results also suggested that the detachment initially stimulated ethylene and abscisic acid production and auxin degradation, which modulated ripening-related gene expression and at last enhanced fruit pigmentation. © 2014 Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków. Source

Duan X.,Zhejiang Agriculture and Business college
2012 IEEE 5th International Conference on Advanced Computational Intelligence, ICACI 2012 | Year: 2012

This paper is concerned with the problem of delay-dependent passivity analysis and passification for a class of stochastic impulsive neutral systems with mixed delays. To reflect more realistic dynamical behaviors of the system, the stochastic disturbances are considered, which are given in the form of a Brownian motion. By constructing a proper stochastic Lyapunov-Krasovskii function as well as the linear matrix inequalities (LMIs) technique, some novel sufficient conditions are derived to ensure the delay-dependent passivity/passification performance in terms of LMIs. Finally, a numerical example is given to illustrate the theoretical results. © 2012 IEEE. Source

Chen J.,Zhejiang University | Zhao Y.,Zhejiang Agriculture and Business college | Chen X.,Zhejiang University | Peng Y.,Zhejiang University | And 2 more authors.
Journal of Food Biochemistry | Year: 2014

Programmed cell death (PCD) occurs during plant development and in response to various stimuli, including biotic and abiotic stresses. Characteristics of PCD were detected in cucumber fruit after 9 days of cold storage at 2C, including chromatin condensation and DNA fragmentation. PCD development was accompanied by ethylene emission and cytosolic free calcium ([Ca2+]cyt) release. The role of ethylene production and [Ca2+]cyt in chill-induced PCD were studied through the application of 1-methylcyclopropene (1-MCP; an ethylene perception inhibitor) and ethylene glycol bis (2-aminoethyl) tetraacetic acid (EGTA; a divalent cation chelator). Results indicated that hallmarks of PCD were identified in cucumber fruit suffering from chilling stress and diagnostic events of PCD were alleviated and/or delayed by 1-MCP or EGTA applications. Therefore, ethylene and calcium could play significant roles in the initiation and execution progress of cold-induced PCD. © 2013 Wiley Periodicals, Inc. Source

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