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On the Controllability of Nonlocal Second‐Order Impulsive Neutral Stochastic Integro‐Differential Equations with Infinite Delay 下载免费PDF全文
Diem Dang Huan 《Asian journal of control》2015,17(4):1233-1242
In this paper, we investigate the controllability for a class of nonlocal second‐order impulsive neutral stochastic integro‐differential equations with infinite delay in Hilbert spaces. More precisely, a set of sufficient conditions for the controllability results of nonlocal second‐order impulsive neutral stochastic integro‐differential equations with infinite delay are derived by means of the Banach fixed point theorem combined with theories of a strongly continuous cosine family of bounded linear operators. As an application, an example is provided to illustrate the obtained theory. 相似文献
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Various molecular docking software packages are available for modeling interactions between small molecules and proteins.However,there have been few reports of modeling the interactions between metal ions and metalloproteins.In this study,the AutoDock package was employed to example docking into a di-iron binding protein,bacterioferritin.Each binding site of this protein was tested for docking with iron ions.Blind docking experiments showed that all docking conformations converged into two clusters,one for internal iron binding in sites within the metalloprotein and the other for external iron binding on the protein surface.Local docking experiments showed that there were significant differences between two internal iron binding sites.Docking at one site gave a reasonable root-mean-square deviation(RMSD) distribution with relatively low binding energy.Analysis of the binding mode quality for this site revealed that more than half of the docking conformations were categorized as having good binding geometry,while no good conformations were found for the other site.Further investigations indicated that coordinating water molecules contributed to the stability of binding geometries.This study provides an empirical approach towards the study of molecular docking in metalloproteins. 相似文献
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结合自动切纸机的嵌入式工业控制终端的开发,分析了Linux下以ARM9为处理器的工业控制终端与三菱F×系列PLC通信的过程.详细介绍了ARM与PLC之间的通信协议、通信命令、通信机制,可以实现ARM与PLC之间实时数据交换和控制功能. 相似文献
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近年来深度学习技术在地质学的应用越来越广泛.地质学科中的一个重要课题是根据稀疏的空间观测数据建立合理的地下模型.最近的工作通过条件生成对抗网络来探索条件化地质建模,产生了逼真且符合空间观测数据的地质图像.然而,多数方法只关注将空间观测数据作为硬条件,忽视了对生成图像中地质属性的调节.本文引入地质属性标签调节地质图像中具体的地质属性表现,将表征地质属性类别的标签数据作为生成条件之一,扩展一个属性分类器与该标签配合,从而实现更可控的图像生成.针对属性标签的人工标注成本大的问题,本文采用半监督聚类利用少量的标注数据为无标签数据自动分配标签.此外,聚类可能产生噪声标签影响建模结果,此方法使用对称交叉熵损失改进分类网络以提高网络对于噪声标签的鲁棒性.本文在黄河地区的河流地质数据集上进行大量实验,结果表明所提出的方法对于不同的属性标签生成了地质模式不同且符合空间观测数据的逼真地质图像,证明了本方法的有效性. 相似文献
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We investigate the relationship between superconductivity and spin glasses, which were observed to be coexistent in heavy fermion superconductors (HFSs). We begin by explaining the phase of spin glass using concepts of finite-sized block spin. We then introduce the phase of superconductivity in HFSs as collective Cooper pairing, that is, the pairing of block spins with net spin = 1/2, each of which is comprised of a large number of random spins that together produce a majority spin direction. The superconducting Bardeen-Cooper-Schrieffer (BCS)-type phonon-mediated electron-electron interaction is substituted for the BCS-type electron-electron interaction mediated by phonon-enhanced spin flips previously suggested by us. An effective charge of any value stemming from an electron attached to the flux of an electric field can be referred to as a composite charge. The distinguished difference between ours and the original BCS model is the following: (i) another BCS-type interaction, (ii) bare electrons that are substituted for block spins with net spin = 1/2 and net charge = e in the presence of electric fields, and (iii) Fermi-Dirac distributions that are replaced by a new distribution called as Brillouin distribution. 相似文献
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Zhang Jian Yang Xiaokun Deng Hui Qiao Keke Farooq Umar Ishaq Muhammad Yi Fei Liu Huan Tang Jiang Song Haisheng 《纳微快报(英文)》2017,9(3):1-8
Nano-Micro Letters - A NiFe2O4/expanded graphite (NiFe2O4/EG) nanocomposite was prepared via a simple and inexpensive synthesis method. Its lithium storage properties were studied with the goal of... 相似文献