基于CAN/LIN双总线电动汽车数字仪表系统的设计

研究汽车数字化仪表技术。针对传统组合仪表的显示内容具有很大的局限性,且数据传输实时性差等问题,提出了一种基于CAN/LIN双总线纯电动汽车液晶实时显示系统,对系统网络分层架构和系统整体的硬件平台架构进行详细的分析设计。系统软件方面,对信息交换协议以及系统整体的流程进行了设计。经过实验室模拟环境和实际的装车运行测试,系统显示内容丰富、人机交互效果好,实时性强,从而验证了系统设计的合理性和正确性。     

基于USB的汽车总线监控模块设计

介绍了应用于汽车的CAN总线和LIN总线监控模块的设计,采用PIC单片机作为控制核心,采用MCP2510作为CAN控制器,使用单片机软件实现LIN协议,并且通过USB接口与便携式计算机通讯,可实现实时监控,并在道路试验中得到验证.     

颗粒粘结高燃速推进剂燃速设计方法的研究

介绍了颗粒粘结高燃速固体推进剂的工艺特点,利用推进剂燃烧特征化学基团方法预估了几种小药粒和速燃粘结剂的燃速,提出了颗粒粘结高燃速固体推进剂燃速的设计方法.     

多网融合的混凝土泵车状态远程监控系统设计*

为了全面有效地监控混凝土泵车的状态以确保安全生产和降低维护成本,设计了一套融合多种网络系统的混凝土泵车状态远程监控系统。结合泵车的结构特点,对臂架结构使用ZigBee技术实现传感器的即插即用和数据的无线采集传输,对液压系统、底盘等其他部位使用CAN/LIN总线实现泵车状态信息的实时采集和有线传输,将采集数据在泵车状态中心进行汇总后通过GPRS分时远程传输到监控中心服务器,实现城域范围中心集中式状态监控和维修管理,并对其电磁兼容和低功耗性能重点设计。测试结果表明,该系统可实现数据的实时采集和正确传输,从而保证混凝土泵车能够安全运行。     

浅谈汽车网络技术

随着汽车电子设备的应用和不断增多,导致了汽车布线越来越复杂、电气设备运行可靠性降低、故障维修难度增大等问题,由此,人们选择了网络技术。叙述了在各种汽车网络技术中,CAN总线和LIN总线技术得到了较为广泛的应用。     

A liquefied energy chain for transport and utilization of natural gas for power production with CO2 capture and storage – Part 2: The offshore and the onshore processes

A novel energy and cost effective transport chain for stranded natural gas utilized for power production with CO₂ capture and storage is developed. It includes an offshore section, a combined gas carrier, and an integrated receiving terminal. In the offshore process, natural gas (NG) is liquefied to LNG by liquid carbon dioxide (LCO₂) and liquid inert nitrogen (LIN), which are used as cold carriers. The offshore process is self-supported with power, hot and cold utilities and can operate with little rotating equipment and without flammable refrigerants. In the onshore process, the cryogenic exergy in LNG is used to cool and liquefy the cold carriers, which reduces the power requirement to 319 kWh/tonne LNG. Pinch and exergy analyses are used to determine thermodynamically optimized offshore and onshore processes with exergy efficiencies of 87% and 71%, respectively. There are very low emissions from the processes. The estimated specific costs for the offshore and onshore process are 8.0 and 14.6 EUR per tonne LNG, respectively, excluding energy costs. With an electricity price of 100 EUR per MWh, the specific cost of energy in the onshore process is 31.9 EUR per tonne LNG.     

基于CANoe的车身网络通信设计

车载电子设备相互间的通信日渐复杂,为克服集中式车身控制系统布线干扰大,不易于维护等缺点,设计一种基于CAN/LIN总线混合网络的车身控制系统。根据某主机厂车型的协议规范要求,利用CANoe设计完成了总线网络各节点的模拟仿真,并利用CANoe的分析统计功能与主机厂的需求进行了对比,分析结果与上机实测结果一致,方案可行。     

LIN总线通信展示板的实现

介绍了LIN总线及其通信特点，分析了LIN总线通信的帧结构和通信协议；针对LIN总线在汽车低速通信中的模拟应用，设计了LIN总线硬件电路和LIN展示板，详细阐述了其功能和软件流程；展望了LIN总线的发展前景。     

Chromenopyrazole−Peptide Conjugates as Small-Molecule Based Inhibitors Disrupting the Protein−RNA Interaction of LIN28-let-7

Targeting the protein−RNA interaction of LIN28 and let-7 is a promising strategy for the development of novel anticancer therapeutics. However, a limited number of small-molecule inhibitors disrupting the LIN28-let-7 interaction with potent efficacy are available. Herein, we developed a novel LIN28-inhibiting strategy by targeting selective hotspot amino acids at the LIN28-let-7 binding interface with small-molecule-based bifunctional conjugates. Starting from reported small-molecule LIN28 inhibitors, we identified a feasible linker-attachment position after performing a structure-activity relationship exploration based on the LIN28-targeting chromenopyrazoles. In parallel, a virtual alanine scan identified hotspot residues at the protein−RNA binding interface, based on which we designed a set of peptides to enhance the interaction with the identified hotspot residues. Conjugation of the tailor-designed peptides with linker-attached chromenopyrazoles yielded a series of bifunctional small-molecule-peptide conjugates, represented by compound 83 (PH-223), as a new LIN28-targeting chemical modality. Our result demonstrated an unexplored rational design approach using bifunctional conjugates to target protein−RNA interactions.     

Preparation and assay performance of supramolecule of cyclophane-complexed polyoxometalates supported on the gold surface

A novel supramolecular complex of octamolybdates and cyclodextrin was simply prepared for the first time by self-assembled method under room temperature. Successful formation of the functional material was demonstrated by carrying out analysis on its thin films supported on the gold surface by various electrochemical techniques, based on the redox probe of octamolybdates contained in the assembly. Sensing and assay performance of the final functional films were evaluated in FIA system by determining oxo anions in samples based on the electroactivity of surface-confined molybdenum catalyst.