PCI桥接IP Core的Verilog HDL实现

PCI总线是目前最为流行的一种局部性总线.通过对PCI总线一些典型功能的分析以及时序的阐述,利用VerilogHDL设计了一个将非PCI功能设备转接到PCI总线上的IP Core.同时,通过在ModelSim SE PLUS 6.0上运行测试程序模块,得到了理想的仿真数据波形,从软件上证明了功能的实现.     

Fluid effects on the core scismic behavior of a liquid metal reactor

In this paper, a numerical application algorithm for applying the CFAM (Consistent Fluid Added Mass) matrix for a core seismic analysis is developed and applied to the 7-ducts core system to investigate the fluid effects on the dynamic characteristics and the seismic time history responses. To this end, three cases such as the in-air condition, the in-water condition without the fluid coupling terms, and the in-water condition with the fluid coupling terms are considered in this paper. From modal analysis, the core duct assemblies revealed strongly coupled out-of-phase vibration modes unlike the other cases with the fluid coupling terms considered. From the results of the seismic time history analysis, it was also verified that the fluid coupling terms in the CFAM matrix can significantly affect the impact responses and the seismic displacement responses of the ducts.     

漏洞检测类产品核心指标浅析

本文对漏洞检测类的产品选型做了一些探索和研究,并参考了相关的国家标准和国外测评机构的测试方法、测试报告,主要对漏洞检测类产品的核心指标进行了分析和探讨。     

基于PowerPC 405的 SOPC 简单应用

介绍PowerPC 405嵌入式处理器的结构特性及其软件开发环境,给出基于PowerPC405的SOPC简单应用实例。     

保证型QoS服务CSBP控制技术研究

提出了保证型QoS服务的CSBP控制技术，它能够保证每个数据流的预约速率，数据流分组经过网络后有确切的时延上界，核心路由器不需要维持有关每个数据流的状态信息。CSBP控制技术融合了集成服务和区分服务这两大类解决方案的优点，提供了具有高水平的服务质量保证，兼顾了网络资源利用率和扩展性。     

基于SOPC技术的超声检测分析系统

介绍了基于可编程片上系统的超声检测分析系统。该系统以FPGA芯片EP2C20F48417为数字平台，通过在FPGA中构建SOPC系统，实现了超声波声参量检测、数据处理、结果实时显示、数据存储和输出等功能。通过和其它仪器对比，该系统具有可重配置性好、重量轻等优点，为产品的升级提供了很大的方便。     

Magnetic‐Core/Porous‐Shell CoFe2O4/SiO2 Composite Nanoparticles as Immobilized Affinity Supports for Clinical Immunoassays

This study demonstrates a novel approach towards the development of advanced protein assay systems based on physically functionalized, magnetic‐core/porous‐shell CoFe₂O₄/SiO₂ composite nanoparticles. The preparation, characterization, and measurement of the relevant properties of the protein assay system is discussed, and the system is used for the detection of cancer antigen 15‐3 (CA 15‐3, used as a model here) in clinical immunoassays. The protein assay system, based on nanometer‐sized magnetic cores and silica shells, shows good adsorption properties for the selective attachment of CA 15‐3 antibodies specific to CA 15‐3. The core/shell nanostructures exhibit good magnetic properties, which enables their integration into a quartz crystal microbalance (QCM) detection cell with the help of a permanent magnet. Under optimal conditions, the resulting immunoassay system presents a good QCM response for the detection of CA 15‐3, and allows the detection of CA 15‐3 at concentrations as low as 1.5 U mL^–1 (U: units). Importantly, the proposed protein assay system can be extended to the detection of other antigens and biological compounds.     

Antibody‐Functionalized Hybrid Superparamagnetic Nanoparticles

Superparamagnetic hybrid nanoparticles (ca. 80 nm) are obtained. They consist of an inner iron oxide core coated by a silica shell, which is in turn functionalized with amine or carboxyl groups and covalently coupled to a monoclonal antibody (anti‐hCG; hCG = human chorionic gonadotropin). The prepared nanoparticles show a specific magnetic moment (per gram of iron) that is comparable to that measured for commercial superparamagnetic iron oxide preparations. The bioactivity of the antibody‐conjugated magnetic nanoparticles is verified by a standard bioassay. These results indicate the potential of the hybrid nanoparticles prepared for use as enhanced contrast agents in magnetic resonance imaging applications.     

民办高校党委角色定位:政治核心

民办高校党组织是增强民办高校内部凝聚力、保障国家的教育方针、政策在民办高校正确贯彻执行的重要组织保证;民办高校党委的隶属关系可根据实际情况灵活选择;民办高校党组织应在教职工和学生中发挥政治核心作用。