并行设备总线电源控制系统设计

为实现CSRe试验环磁铁电源的控制同步,采用32位ARM内核芯片技术结合DSP控制板方式,稳定可靠地实现控制数据流的传输和同步事例的收发。同时通过CPLD逻辑时序编程来设计eVME背板总线系统。本系统用嵌入式网络和并行总线技术可靠稳定实现数据的快速获取与给定。

用CPLD实现DSP与背板VME总线之间的连接

介绍了采用CPLD实现DSP芯片TMS320C6713和背板VME总线之间高速数据传输的系统设计方法。设计中采用VHDL语言对CPLD进行编程。同时由于CPLD的现场可编程特性,增强了整个系统的灵活性。

Proteomic analysis of differentially expressed proteins in lymphoid organ of Fenneropenaeus chinensis response to Vibrio anguillarum stimulation

To gain an insight into the function of shrimp lymphoid organ at protein level, we analyzed the proteome of lymphoid organ in healthy Chinese shrimp Fenneropenaeus chinensis (F. chinensis) through two-dimensional gel electrophoresis (2-DE) based proteomic approach. A total of 95 spots representing 75 protein entries were identified by liquid chromatography tandem mass spectrometry (LC-MS/MS) with both online and in-house database. According to Gene Ontology (GO) annotation of biological process, the identified proteins were classified into 13 categories. Among them, approximately 36% of proteins related to cytoskeleton are noticeable. Then, a comparative proteomic approach was employed to investigate the differentially expressed proteins in lymphoid organ of Vibrio anguillarum-challenged F. chinensis. At 24 h post-injection (hpi), 17 differentially expressed protein spots were successfully identified, including 4 up-regulated protein spots (represent 4 proteins: cathepsin L protein similar to squid CG16901-PC, protein kinase C and protein similar to T-complex Chaperonin 5 CG8439-PA), and 13 down-regulated protein spots (represent 9 proteins: actin, beta-actin, cytoplasmic actin CyII, alpha tubulin, beta tubulin, protein similar to proteasome delta, vacuolar ATP synthase subunit B, elongation factor 2, carboxypeptidase B). These data may help us to understand the function of lymphoid organ and the molecular immune mechanism of shrimp responsive to pathogen infection. (C) 2010 Elsevier Ltd. All rights reserved.