莲子叶蛋白体的类型,来源与发育

莲子叶于发育的１０￣２８ｄ,以不同速率在叶肉细胞中大量积累贮存蛋白,并以不同方式组装许多形态各异、结构不同的蛋白体。按其来源与发育的特点可分４种类型：①粗面球状蛋白体;②光面球状蛋白体;③杯状蛋白体;④淀粉蛋白体。发育顺序是①,②类先形成,③,④类后发生;②类的发育贯穿整个贮存蛋白的积累期,比较了莲与其他植物蛋白体的异同。     

帧中继技术与数据通信

就帧中继的产生与特点作了简要的介绍,阐述了随着局域网互连的发展,采用帧中继技术取代Ｘ．２５和ＤＤＮ（数字数据网）通信方式,不仅能满足速率高、动态分配带宽、组网方便、费用低廉的需要,而且从帧中继主干网向ＡＴＭ（异步转移模式）主干网平稳过渡是非常方便和经济的,帧中继也将成为ＡＴＭ主干网的主要用户接入方式。     

单片机控制的光电测速仪

提出了一个用８０３１单片机和光电编码器组成的转速与转角测试方案,介绍其实现的基本原理和结构特点,给出了接口电路和软件设计方法。由于采用了单片机和光电传感器,该系统具有硬件电路简单、测量精度高、性能稳定可靠等优点,其适用于自动控制、自动检测及各种转速与方位角的测量与控制等领域。     

Study on the Model of Thermal Channel Spinning Process for PET Polymer

A mathematical model to describe the TCS process inPET high-speed melt-spinning is established.The de-velopment of crystallinity,molecular orientation andmorphological features of high-speed-spun PET fiberin TCS process is investigated at take-up speeds rangingfrom 3600-4400 m/min and thermal channel tempera-tures ranging from 160-200℃ by simulation.The pro-files of tensile force,running velocity,temperature,bi-refringence,crystallinity and diameter in the TCS spin-line for various process conditions are obtained.Thepredicted results using this model are compared with themeasured crystallinty,diameter and birefringence.Theresults indicate that they are in fairly good agreement.The"necking point"in the TCS spinline can be predictedby this model,and its position changes with the corre-sponding process parameters such as take-up speed andthermal channel temperature.It is found that the neck-ing point moves towards the spinneret when the take-upspeed or the thermal channel temperature increases.     

结构不对称杀虫剂丙硫磷复配制剂的研制与应用

测定不同配比的氟氰菊酯与丙硫磷复配制剂（简称氯丙制剂）对褐棘蛾和马尾松毛虫幼虫的触杀毒力、共毒系数和增效配比,加工成不同比例的氯丙复合乳油,对两种供试昆虫进行了防治效果检验。结果表明,以有效成分间１：７的比例配制的氯丙复剂增效明显,成本较低,具有较理想的防治效果。     

拆垛用立柱式滚筒模型试验

为解决四川省二滩水电站木材过坝进口段过木通道端部木材堵塞的问题,进行了拆垛用立柱式滚筒的模型设计和相应的试验,采用这样的措施可以解决这类堵塞的问题。     

锻锤隔震基础的总体设计和分析

对锻锤隔震基础的结构系统、主要元件及其性能进行了简要介绍,对锻锤隔震基础机理进行了分析,并对主要元件的参数选择、力学模型的建立进行了探讨．     

基于图像信息处理的车辆自动驾驶控制方法

在分析驾驶员利用图像信息进行驾驶的一般规律基础上,提出了利用图像信息处理技术实现车辆路迹追踪自动行驶的控制方法和规则,并进行了模拟计算和试验．结果表明,所提出的控制方法和规则用于进行车辆的自动驾驶是可行的．     

Programming the magnitude and persistence of antibody responses with innate immunity

Many successful vaccines induce persistent antibody responses that can last a lifetime. The mechanisms by which they do so remain unclear, but emerging evidence indicates that they activate dendritic cells via Toll-like receptors (TLRs). For example, the yellow fever vaccine YF-17D, one of the most successful empiric vaccines ever developed, activates dendritic cells via multiple TLRs to stimulate proinflammatory cytokines. Triggering specific combinations of TLRs in dendritic cells can induce synergistic production of cytokines, which results in enhanced T-cell responses, but its impact on antibody responses remain unknown. Learning the critical parameters of innate immunity that program such antibody responses remains a major challenge in vaccinology. Here we demonstrate that immunization of mice with synthetic nanoparticles containing antigens plus ligands that signal through TLR4 and TLR7 induces synergistic increases in antigen-specific, neutralizing antibodies compared to immunization with nanoparticles containing antigens plus a single TLR ligand. Consistent with this there was enhanced persistence of germinal centres and of plasma-cell responses, which persisted in the lymph nodes for >1.5 years. Surprisingly, there was no enhancement of the early short-lived plasma-cell response relative to that observed with single TLR ligands. Molecular profiling of activated B cells, isolated 7 days after immunization, indicated that there was early programming towards B-cell memory. Antibody responses were dependent on direct triggering of both TLRs on B cells and dendritic cells, as well as on T-cell help. Immunization protected completely against lethal avian and swine influenza virus strains in mice, and induced robust immunity against pandemic H1N1 influenza in rhesus macaques.     

上海地区汉族人单胺氧化酶基因微卫星DNA多态性研究

应用扩增片段长度多态性技术,分析单胺氧化酶基因的ＭＡＯＡ（ＣＡ）。力ＭＡＯＢＩ（ＧＴ）ｎ２个基因座的微卫星ＤＮＡ多态性。在２４６名（男性１２２人,女性１２４人）无血缘关系上海地区汉族人中检出ＭＡＯＡ（ＣＡ）ｎ基因座８－种等位基因（１１０－１２４ｂｐ）和１９种基因型。