溶剂对SBR/CB、NBR/CB涂层材料导电性的影响

将炭黑（CB,N550）与SBR或NBR混合制备导电涂层复合材料．这两种材料的电阻率具有热敏性。讨论了不同溶剂对复合材料室温电阻率和升阻比的影响。     

基于WSN的SimpliciTI协议移植和实现

SimpliciTI 协议是美国TI公司推出的针对简单小型RF网络的专有低功耗协议。在Keil MDK 3.8开发环境下移植 SimpliciTI 网络协议, 设计一种无线传感器网络系统, 系统包括中心节点和终端节点。该系统以单片机STM32F103C8作为微处理器, 通过控制射频收发芯片ADF7021进行数据的收发。通过对 SimpliciTI 网络协议及其拓扑结构进行了分析, 并在此基础上设计低功耗和载波侦听退避算法, 最终实现了基于 SimpliciTI 协议的无线传感网系统, 可用于单数据采集中心和多个传感器节点的场合。     

基于SIM808的CAN总线监控和维护终端

为了实时获取CAN总线数据和监控总线的健康状态,并实现对CAN节点的固件更新功能,设计了一种以SIM808为GPRS通信模块、以STM32F072CB为控制核心、基于RT-Thread实时操作系统的嵌入式CAN总线监控和维护终端.本文详细介绍了终端的硬件和软件设计,为提高数据传输的可靠性和稳定性,使用了大容量的外部数据存储器.本终端实现了对CAN总线的监控和维护功能,提高了CAN总线的稳定性,大大降低了人工维护的工作量.     

Prolonged Activation of Brain CB2 Signaling Modulates Hypothalamic Microgliosis and Astrogliosis in High Fat Diet-Fed Mice

Low-grade inflammation of the hypothalamus is associated with the disturbance of energy balance. The endocannabinoid system has been implicated in the development and maintenance of obesity as well as in the control of immune responses. The type 2 cannabinoid receptor (CB2) signaling has been associated with anti-inflammatory effects. Therefore, in high fat diet (HFD)-induced obese mice, we modulated CB2 signaling and investigated its effects on energy homeostasis and hypothalamic microgliosis/astrogliosis. We observed no effect on caloric intake and body weight gain in control diet-fed animals that received prolonged icv infusion of the CB2 receptor agonist HU308. Interestingly, we observed a decrease in glucose tolerance in HFD-fed animals treated with HU308. Prolonged icv infusion of HU308 increases astrogliosis in the ventromedial nucleus (VMH) of obese animals and reduced HFD-induced microgliosis in the hypothalamic arcuate (ARC) but not in the paraventricular (PVN) or VMH nuclei. These data indicate that central CB2 signaling modulates glucose homeostasis and glial reactivity in obesogenic conditions, irrespective of changes in body weight.     

炭黑填充PET/PE导电原位微纤化复合材料

根据炭黑（CB）粒子在聚合物中的选择性分布理论,通过工艺控制,使CB粒子主要分布在微纤表面。本工作将CB粒子首先与聚乙烯（PE）共混,再与聚对苯二甲酸乙二醇酯（PET）熔融混合-挤出-热拉伸-淬冷。形态观察表明,CB粒子可以良好地分布于PET微纤表面。电性能测试表明,分布于微纤表面的CB粒子有助于微纤之间的电子传导,该复合材料的正温度系数（PTC）较强,而负温度系数（NTC）较弱。     

基于CB220的CDMA远程报警系统的设计与实现

分析了现有汽车报警器的缺点,详细阐述了基于CB220的CDMA汽车报警器的系统设计、硬件设计和软件设计。该报警器利用可编程PLC器件CB220的性价比,使用支持CDMA的专用通信模块,具有远距离、无噪声污染和双向控制等特点。     

Chlorobenzene vapor assistant annealing method for fabricating high quality perovskite films

In this study, chlorobenzene (CB) vapor assistant annealing (VAA) method is employed to make high quality perovskite films and produce high efficiency CH₃NH₃PbI_3-xCl_x perovskite solar cells. The perovskite films made by this method present several advantages such as increased crystallinity, large grain size and reduced crystal boundaries compared with those prepared by thermal annealing (TA) method, which is beneficial to charge dissociation and transport in hybrid photovoltaic device. In addition, it is found that the CB VAA method could improve the surface property of perovskite film, resulting in a preferable coverage of PCBM layer and a better interfacial contact between perovskite film and upper PCBM film. Consequently, the short circuit current density (J_sc) of the devices is significantly increased, yielding a high efficiency of 14.79% and an average efficiency of 13.40%, which is 13% higher than that of thermal annealed ones. This work not only put forward a simple and efficient approach to prepare highly efficient perovskite solar cells but also provide a new idea to improve the morphology and interfacial contact in one integration step.     

CB10钢模板在中南国际广场中的应用

经过多方论证,中南国际广场最终选用CB10钢模板施工方案.首先介绍了CB10钢模板的体系构成、工艺特点,及其所使用的范围,接着采用有限元软件对其进行模拟分析,结果表明满足承载力要求.重点介绍了模板的施工工艺,详细论述了搭设模板的施工步骤及注意事项.做到既环保又节能,达到绿色施工要求.     

室温传感器偏差故障对武汉地区暖通空调系统的影响研究

暖通空调系统的高效节能运行高度依赖于传感器测量的准确性。在传感器全寿命运行周期中,不可避免发生各种故障,影响其准确性。为探究传感器故障对不同暖通空调系统的影响,文章以室温传感器偏差故障为例,针对武汉地区某办公建筑,同时开展地源热泵和冷水机组+锅炉两种暖通空调系统形式的能耗建模,对比分析-5℃~+5℃偏差故障对两种系统运行能耗、工作性能及室内热舒适性的影响差异。结果表明:室温传感器故障的偏差幅值方向对两种系统运行能耗、工作性能及室内热舒适性的影响规律不同。其中,地源热泵系统能耗受室温传感器偏差故障影响相对更小。     

乌桕类可可脂及其巧克力结晶性质的研究(Ⅰ)

研究乌桕类可可脂结晶及其巧克力结晶性质的关系,揭示乌桕类可可脂巧克力加工性能差的原因。采用分光光度法、差示扫描量热法、粘度法研究乌桕类可可脂和天然可可脂及其巧克力的结晶、固化过程,探讨添加茶叶粉生物乳化剂对改善乌桕类可可脂巧克力加工性能的影响。研究表明乌桕类可可脂结晶固化速率比天然可可脂快,而乌桕类可可脂巧克力结晶速率较天然可可脂巧克力快得多。添加5%～8%茶叶粉不仅改善乌桕类可可脂巧克力加工性能,而且能提高巧克力的热稳定性和抗霜花能力。