水下热动力系统的模型参考自适应控制研究

针对开式循环水下热动力系统动态性能要求高及参数非线性的特点，通过对热动力系统物理特性的分析．设计出适于开式循环的某水下热动力系统的模型参考自适应控制系统。仿真结果表明该方法控制精度高，抗干扰能力强，系统稳定。证明了方法的正确性和有效性。     

地面无人作战平台环境感知关键技术研究

介绍了国内外地面无人作战平台环境感知技术的发展现状,在分析环境感知的立体视觉信息处理技术、主动型传感器信息处理技术、平台自主定位技术、多传感器信息集成与数据融合技术、障碍物检测技术等关键技术的基础上,探讨研制地面无人平台环境感知系统的方案设计．     

基于SHT11的温湿度控制器

基于SHT11的数字温湿度控制器,以MSP430F149单片机为核心,由温湿度传感器、电源、液晶显示、键盘、声光报警及JTAG等模块组成.首先SHT11对环境的温度和相对湿度进行检测,通过二线串行接口将数字温湿度信号送至MSP430F149微控制器,最后利用微控制器完成相对湿度的非线性补偿和温度补偿,并将实际温度和相对湿度值送液晶显示器显示,从而实现对环境温湿度的测控.     

无线传感器网络路由的安全性问题分析

网络层路由遭受的攻击可归为:哄骗、篡改或重放路由信息、选择性转发、Sinkhole攻击、Sybil攻击、Wormholes攻击、Flooding攻击、应答欺骗.从效果上看,一种是直接对数据进行攻击,另一种是对路由拓扑结构的攻击.针对各种攻击,提出了外/内部攻击的对策.     

军用热电池钛合金壳体材料应用试验研究

介绍了军用热电池的基本结构和工作原理,用钛合金材料制备了某型热电池的壳体,在不同条件下进行了放电试验.研究了相同条件下采用钛合金壳体和传统不锈钢壳体的2种热电池在质量、寿命以及比能量等方面的差别.采用钛合金作为热电池的壳体材料可明显提高热电池的比能量和寿命,钛合金是弹栽热电池理想的壳体材料.     

鱼雷辐射磁矩测量误差研究

基于鱼雷辐射电磁场测量方法，建立了磁矩测量误差的数学模型，并在此基础上利用MATLAB计算了各相关因素对测量误差的影响，提出了测量传感器尺寸和测量距离的选择原则，分析了磁矩测量误差与测量距离、传感器长度以及传感器直径的关系，得到了一定测量条件下测量误差相对于各因素的变化曲线，从而有助于选用合适的测量传感器尺寸和确定适当的测量位置，可以有效地减小磁矩测量的误差，旨在为鱼雷电磁场系统参数测量设备的设计提供参考。     

N-甲基-2-(2,4,6-三硝基苯基)吡咯烷[3′,4′:1,2][60]富勒烯的合成及热稳定性

以2,4,6-三硝基甲苯(TNT)为起始物,四丁基氯化铵为催化剂,在碱性条件下经高锰酸钾氧化合成得到了2,4,6-三硝基苯甲醛(TNBD),TNBD再与C60,N-甲基甘氨酸经1,3-偶极环加成反应制得目标物N-甲基-2-(2,4,6-三硝基苯基)吡咯烷[3,′4:′1,2][60]富勒烯(MTNPF),产率74.3%(以消耗的C60计);经紫外可见光谱、红外光谱、质谱、核磁共振谱等检测手段对MTNPF结构进行了表征,用STA 449C型综合热分析仪对MTNPF热稳定性进行了测试,结果表明,MTNPF具有良好的热稳定性,在空气中分解温度超过250℃。     

优化传输栅下电势分布改善四管像素的电荷转移效率

提出了一种通过优化传输栅下沿电荷转移路径的电势分布来提高电荷转移效率的方法。通过使用非均匀掺杂传输管沟道,形成了传输管沟道内部的电势分布梯度。通过对R1区与传输栅的交叠长度,R1区的掺杂剂量,防穿通注入（APT）与传输栅交叠长度的调整,减小了传输管沟道与箝位光电二极管（PPD）连接区域的电子势垒与电子势阱,增强了二者的电势连接。仿真结果显示,剩余电荷占总电荷的比例由1/104减小至1/107,转移时间由500 ns缩短为110 ns。这意味电荷转移效率得到了提高。     

Thermal denaturation of soy proteins as related to their dye-binding characteristics and functionality

The binding of Cresol Red and of Acid Orange 10 (in the absence and presence of urea) to unheated and progressively heated, defatted soy meal was compared with their NSI values, urease activities,in vitro digestibilities, unreactive lysine contents, and foaming and emulsifying capacities. These results suggested that increased amounts of Cresol Red and of Acid Orange 10 (in the presence of urea) bound to the heated samples were due to the progressive exposure of hydrophobic residues caused thermal denaturation. High statistical correlations were obtained between dye-binding, the duration of heating, and functional properties. Our results indicate that dye-binding has potential for predicting certain functional properties as well as for monitoring thermal denaturation of soy proteins.     

Rust-red grain beetle,Cryptolestes ferrugineus,and flat grain beetle,Cryptolestes pusillus: Antennal and behavioral responses to synthetic components of their aggregation pheromones

Antennal and behavioral responses of the rust-red grain beetle,Cryptolestes ferrugineus, and the flat grain beetle,C. pusillus, to synthetic samples of the macrocyclic lactones reported to comprise their aggregation pheromones were investigated. Electroantennogram (EAG) recordings were obtained successfully from both species for the first time. Females of both species showed larger EAGs than males. The EAGs ofC. ferrugineus showed a high degree of specificity for conspecific aggregation pheromone components;C. pusillus showed much less specificity. Behavioral tests were conducted using two-choice pitfall bioassays. Separation of the results into the two effects of activity stimulation and direction finding showed that both effects contributed to the overall response, although sometimes to different extents. The strain ofC. pusillus studied responded equally well to both components of its pheromone, whereas it had been reported previously that only one was active, the other acting as a Synergist and eliciting no response when tested alone. With both species, behavioral response was elicited with a single lactone, suggesting that it might not be necessary to use both components for field use. Particularly surprising was thatC. pusillus showed a greater response to the pheromone components ofC. ferrugineus than to its own. Aeration of the two species and thermal desorption of the collected volatiles confirmed production of the expected lactones, and aeration of authentic lactones showed that the response was not due to the C.ferrugineus pheromone components being markedly more volatile. This response, which seems to be an actual preference, is the first to be discovered among the cucujid beetles and encourages optimism that a practical lure for various species may not need to be as complex as originally feared.