排序方式: 共有79条查询结果,搜索用时 6 毫秒
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Hong-Kun Xu 《Applicable analysis》2013,92(2):179-199
The nonsmooth critical point theory is applied to prove the existence of solutions and multiple solutions of a quasilinear elliptic equation with discontinuous nonlinearities. 相似文献
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差速离心结合蛋白质组学技术研究受镉盐胁迫后的牙鲆肝差异蛋白质 总被引:1,自引:0,他引:1
人工构建镉盐污染源,选用差速离心结合双向凝胶电泳(2D-PAGE)法,高效提取、分离和筛选牙鲆(Paralichthys olivaceus, PO)受镉盐胁迫后的肝脏全蛋白和差异蛋白质.实验结果表明: 选用直接裂解法提取牙鲆肝(PO liver POL)全蛋白质且用2D-PAGE分离,可获得约800个蛋白斑点,其中镉盐诱导了11个差异蛋白斑点.以相对离心力为1000×g、12000×g和100000 ×g 的差速离心法,分别制备了3种沉淀蛋白和1种胞浆蛋白,称为POL组分Ⅰ、POL组分Ⅱ、POL组分Ⅲ和POL组分Ⅳ(胞浆蛋白),蛋白斑点数目分别为380、550、500和850个,总计2280个,明显高于直接裂解法.比较分析法发现,差速离心结合2D-PAGE分离技术可获得牙鲆肝脏受镉盐胁迫后表达的54个差异蛋白质,并适合于用肽质量指纹(peptide mass fingerprint,PMF)图谱技术鉴定.本实验所建立的差速离心结合蛋白质组学技术可高效提取、分离和鉴定组织全蛋白或差异蛋白,并能有效地筛选出蛋白指示物. 相似文献
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The Mann iterations for nonexpansive mappings have in general only weak convergence in a Hilbert space. We modify an iterative method of Mann's type introduced by Nakajo and Takahashi [Strong convergence theorems for nonexpansive mappings and nonexpansive semigroups, J. Math. Anal. Appl. 279 (2003) 372–379] for nonexpansive mappings and prove strong convergence of our modified Mann's iteration processes for asymptotically nonexpansive mappings and semigroups. 相似文献
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Russian Journal of Applied Chemistry - Al-Doped ZnO (AZO) nanocrystals with a novel cactus morphology have been successfully synthesized by a facile and efficient hydrothermal method. The crystal... 相似文献
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Hong-Kun Xu 《Journal of Mathematical Analysis and Applications》2006,314(2):631-643
Let X be a Banach space and A an m-accretive operator with a zero. Consider the iterative method that generates the sequence {xn} by the algorithm xn+1=αnu+(1−αn)Jrnxn, where {αn} and {rn} are two sequences satisfying certain conditions, and Jr denotes the resolvent −1(I+rA) for r>0. Strong convergence of the algorithm {xn} is proved assuming X either has a weakly continuous duality map or is uniformly smooth. 相似文献
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We investigate a wide class of two-dimensional hyperbolic systems with singularities, and prove the almost sure invariance principle (ASIP) for the random process generated by sequences of dynamically Hölder observables. The observables could be unbounded, and the process may be non-stationary and need not have linearly growing variances. Our results apply to Anosov diffeomorphisms, Sinai dispersing billiards and their perturbations. The random processes under consideration are related to the fluctuation of Lyapunov exponents, the shrinking target problem, etc. 相似文献