1.Rapid Isolation of Large Amount of Plasma VLDL and LDL by a Two Step Ultracentrifugation
Rapid Isolation of Large Amount of Plasma VLDL and LDL by a Two Step Ultracentrifugation
2.In situ Localization and Isolation of Actin Filaments from Pollen Tubes of Amaryllis vittata Ait
In situ Localization and Isolation of Actin Filaments from Pollen Tubes of Amaryllis vittata Ait
3.This paper introduces the structure and functions of the conventional Unified Power Quality Conditioner(UPQC)briefly. Moreover,a novel single phase UPQC based on the DC Isolation(DCI) unit is proposed and implemented.
介绍了统一电能质量调节器(Unified Power Quality Conditioner,简称UPQC)的传统拓扑结构,设计并实现了基于直流隔离单元(DC Isolation,简称DCI)的新型DCI-UPQC实验样机。
4.The recent development of vibration isolations is reviewed, including the passive and active (hybrid ) isolation of the VISS (Vibration Isolation, Suppression,and Steering), SUITE (Satellite Ultra-quiet Isolation Technology Experiment), MVIS(Miniature Vibration Isolation System), in terms of the design and performance of these systems, the program of flight testing.
文章简单介绍最新发展的“有效载荷”减震装置,包括:VISS(隔振,抑振,主控)、SUITE(卫星振动特级隔振试验装置)、MVIS(小型化隔振系统)等3种被动/主动合一隔振装置,对它们的结构设计、性能指标、试验计划等进行具体介绍。
5.(2) In respect of the sliding base-isolation analyses of the multistory building and thelong-span roof-truss structure and the friction pendulum isolation analyses of thecontinuous-girder bridge, the mechanical models of various isolation installations arebuilt, and a number of the modified continuous friction models with the compressiveforce of the sliding interface and the sliding velocity relative regarded as the independentvariables are proposed.
(2)针对地下爆炸波冲击下多层建筑和大跨屋盖结构的基底滑移隔震分析和连续梁桥的摩擦摆支座隔震分析而分别建立起各个隔震装置的力学模型,提出了以滑移接触面压力和相对滑移速度为自变量的各个修正连续摩擦力模型。
6.Considering of flexible installing of machines,which were supported by multi-mounts and disturbed by multi-excitations in engineering practice,a general dynamic model for the complex active-passive flexible isolation systems is presented.The mobility approach is extended to the analysis of the active isolation systems,and the power flow transmitted into the plate-like foundation of the systems is studied using substructure mobility synthetic technique.Then the active control strategies of the power flow are discussed from the viewpoint of insertion loss,and the transmission mechanism is revealed for the flexible coupling isolation systems which comprise active elements.
综合考虑工程实际中多激励、多支承机组的柔性安装问题,建立了主被动复杂柔性隔振系统的统一动力学模型,将导纳方法推广到主动隔振分析中,采用子结构导纳综合法对弹性板基础上主动隔振系统的传递功率流进行了分析,并从插入损失的观点探讨了功率流的主动控制策略,揭示了含有主动作动元件的柔性耦合系统的功率流传递机理.
7.It is also found that the isolation structure with 3DB is effective in 3D isolation, it can lower 50% response of earthquake than non-isolation structure.
研究结果表明, 3DB隔震结构的三向隔震效果明显,楼层的地震反应比不隔震结构降低了50%以上。
8.Based on the K-M model assumption of the infection diseases model, a SIRS infections disease model is discussed that the whole population is divided into two groups by both age: immature, mature and isolation: isolation, non-isolation.
摘要在传染病模型K-M三假设的基础上，进一步的将整体人群按年龄层次分为两个阶段结构，同时考虑对传染病的积极干预，即将染病人群分为染病未被隔离和染病即被隔离两种状态。
9.In comparison with isolation effects of pure- friction base isolation system (P- F) and resilient- friction base isolating system (R- FBI),it shows that the isolation characteristic of S- LF is superior to those of P- F and R- FBI.
通过与恢复力摩擦隔震系统 (R- FBI)和纯摩擦力滑移隔震系统 (P- F)的比较表明， S- LF的隔震性能优于 P- F和 R- FBI；
10.A lateral pushing method is used to transform the ordinary MDOF vibration isolation structure into a 2?DOF equivalent vibration system.Small parameter approximation solution for dynamic properties and the dynamic response of equivalent system of vibration isolation is presented considering either proportional or non-proportional damping models.The effect of stiffness ratio of superstructure to that of the isolation system on the accuracy of the dynamic properties is analyzed in a numerical example.
采用侧推法将一般多自由度隔震结构等效代换为双自由度振动体系.建立了振动体系动力特性的小参数近似解，提出了比例及非比例阻尼模型的隔震等代体系动力响应解答形式，并用数值算例试算了隔震刚度比对动力特性小参数解答精度的影响.
