A nonlinear semi-analytical scheme is proposed for investigating the finiteamplitude nonlinear sloshing in a horizontally baffled rectangular liquid container under the seismic excitation.The sub-domain method is deve...A nonlinear semi-analytical scheme is proposed for investigating the finiteamplitude nonlinear sloshing in a horizontally baffled rectangular liquid container under the seismic excitation.The sub-domain method is developed to analytically derive the modal behaviors of the baffled linear sloshing.The viscosity dissipation effects from the interior liquid and boundary layers are considered.With the introduction of the generalized time-dependent coordinates,the surface wave elevation and velocity potential are represented by a series of linear modal eigenfunctions.The infinite-dimensional modal system of the nonlinear sloshing is formulated based on the Bateman-Luke variational principle,which is further reduced to the finite-dimensional modal system by using the NarimanovMoiseev asymptotic ordering.The base force and overturning moment induced by the nonlinear sloshing are derived as the functions of the generalized time-dependent coordinates.The present results match well with the available analytical,numerical,and experimental results.The paper examines the surface wave elevation,base force,and overturning moment versus the baffle parameters and excitation amplitude in detail.展开更多
目的评价BAFF基因多态性与系统性红斑狼疮（SLE）的相关性。方法检索中国学术期刊全文数据库（CNKI）、万方数据库、中国生物医学文献数据库（CBM）、维普网和Pub Med、Embase及Web of Knowledge数据库,检索时间截止为2014年3月1日。按...目的评价BAFF基因多态性与系统性红斑狼疮（SLE）的相关性。方法检索中国学术期刊全文数据库（CNKI）、万方数据库、中国生物医学文献数据库（CBM）、维普网和Pub Med、Embase及Web of Knowledge数据库,检索时间截止为2014年3月1日。按照纳入和排除标准筛选合格文献,并对其进行质量评价,用stata11.0软件进行Meta分析。结果共纳入4篇文献,收集到282例病例,447例对照。Meta分析结果显示,在不同国家的人群中,BAFF基因-871C〉T、-514T〉C、-2841T〉C位点,各位点等位基因频率及显性、隐性遗传模式下均未发现在统计学上具有显著意义。而-2701T〉A位点等位基因频率分布在统计学上存在显著差异（OR=2.667,95%CI=1.782~3.992,P〈0.001）,但是在显性、隐性遗传模式下均未在统计学上发现显著性意义。针对人群进行亚组分析,亚洲人群和非亚洲人群-871C〉T位点3种模型下也均未发现统计学上有显著性差异。结论 BAFF基因-871C〉T、-514T〉C、-2701T〉A、-2841T〉C位点多态性与SLE无关,亚洲人群-871C〉T位点多态性与SLE也无关。展开更多
目的研究BAFF对Raji细胞促增殖作用的机制,分析其对非经典NF-κBB信号途径的调节作用,并初步探讨RIPK2与BAFF/BAFF-R介导的信号通路的相关性。方法以不同浓度重组人BAFF刺激Raji细胞,MTT法分析BAFF对Raji细胞的促增殖作用,应用实时荧光...目的研究BAFF对Raji细胞促增殖作用的机制,分析其对非经典NF-κBB信号途径的调节作用,并初步探讨RIPK2与BAFF/BAFF-R介导的信号通路的相关性。方法以不同浓度重组人BAFF刺激Raji细胞,MTT法分析BAFF对Raji细胞的促增殖作用,应用实时荧光定量PCR(real time q-PCR)与蛋白质印迹实验(Western blotting)检测Raji细胞中BAFF、BAFF-R、NIK、p52、Bcl-XL及RIPK2的表达。结果 BAFF能促进Raji细胞的增殖,且具有明显的剂量效应与时间效应依赖关系;BAFF、BAFF-R、NIK、p52、Bcl-XL及RIPK2在mRNA及蛋白水平的表达均随重组人BAFF浓度的增加而升高(P<0.05)。结论重组人BAFF刺激Raji细胞后能激活非经典NF-κB信号途径,并引起下游靶蛋白Bcl-XL等抗凋亡因子的过表达,促进肿瘤细胞的存活和增殖。BAFF可以上调RIPK2的表达,提示RIPK2与非经典NF-κB信号途径之间可能存在功能联系。展开更多
基金Project supported by the National Natural Science Foundation of China(Nos.51978336 and11702117)。
文摘A nonlinear semi-analytical scheme is proposed for investigating the finiteamplitude nonlinear sloshing in a horizontally baffled rectangular liquid container under the seismic excitation.The sub-domain method is developed to analytically derive the modal behaviors of the baffled linear sloshing.The viscosity dissipation effects from the interior liquid and boundary layers are considered.With the introduction of the generalized time-dependent coordinates,the surface wave elevation and velocity potential are represented by a series of linear modal eigenfunctions.The infinite-dimensional modal system of the nonlinear sloshing is formulated based on the Bateman-Luke variational principle,which is further reduced to the finite-dimensional modal system by using the NarimanovMoiseev asymptotic ordering.The base force and overturning moment induced by the nonlinear sloshing are derived as the functions of the generalized time-dependent coordinates.The present results match well with the available analytical,numerical,and experimental results.The paper examines the surface wave elevation,base force,and overturning moment versus the baffle parameters and excitation amplitude in detail.
文摘目的评价BAFF基因多态性与系统性红斑狼疮（SLE）的相关性。方法检索中国学术期刊全文数据库（CNKI）、万方数据库、中国生物医学文献数据库（CBM）、维普网和Pub Med、Embase及Web of Knowledge数据库,检索时间截止为2014年3月1日。按照纳入和排除标准筛选合格文献,并对其进行质量评价,用stata11.0软件进行Meta分析。结果共纳入4篇文献,收集到282例病例,447例对照。Meta分析结果显示,在不同国家的人群中,BAFF基因-871C〉T、-514T〉C、-2841T〉C位点,各位点等位基因频率及显性、隐性遗传模式下均未发现在统计学上具有显著意义。而-2701T〉A位点等位基因频率分布在统计学上存在显著差异（OR=2.667,95%CI=1.782~3.992,P〈0.001）,但是在显性、隐性遗传模式下均未在统计学上发现显著性意义。针对人群进行亚组分析,亚洲人群和非亚洲人群-871C〉T位点3种模型下也均未发现统计学上有显著性差异。结论 BAFF基因-871C〉T、-514T〉C、-2701T〉A、-2841T〉C位点多态性与SLE无关,亚洲人群-871C〉T位点多态性与SLE也无关。
文摘目的研究BAFF对Raji细胞促增殖作用的机制,分析其对非经典NF-κBB信号途径的调节作用,并初步探讨RIPK2与BAFF/BAFF-R介导的信号通路的相关性。方法以不同浓度重组人BAFF刺激Raji细胞,MTT法分析BAFF对Raji细胞的促增殖作用,应用实时荧光定量PCR(real time q-PCR)与蛋白质印迹实验(Western blotting)检测Raji细胞中BAFF、BAFF-R、NIK、p52、Bcl-XL及RIPK2的表达。结果 BAFF能促进Raji细胞的增殖,且具有明显的剂量效应与时间效应依赖关系;BAFF、BAFF-R、NIK、p52、Bcl-XL及RIPK2在mRNA及蛋白水平的表达均随重组人BAFF浓度的增加而升高(P<0.05)。结论重组人BAFF刺激Raji细胞后能激活非经典NF-κB信号途径,并引起下游靶蛋白Bcl-XL等抗凋亡因子的过表达,促进肿瘤细胞的存活和增殖。BAFF可以上调RIPK2的表达,提示RIPK2与非经典NF-κB信号途径之间可能存在功能联系。
