生物带-膜生物反应器脱氮除磷效果

在传统的一体式膜生物反应器（SMBR）中安装生物带将其改造成生物带-膜生物反应器（BMBR），BMBR所需启动时间较短，在运行5d后出水水质基本稳定．生物带上丰富的生物相、较强的吸附能力及所形成的厌氧-好氧交替微环境，导致出水水质较SMBR有所提高，COD、NH3-N、TN的去除效率分别由SMBR的81％、81％、30．1％提高至95％、88％、76％．但是由于剩余污泥零排放的运行方式，导致BMBR对TP的去除效果较差，在33％～37．5％之间．     

新型蓄电池充放电专用节能装置

蓄电池应用十分广泛，对充、放电设备性能要求也越来越高。以前对蓄电池充、放电采用两套独立设备，在放电时以纯电阻为负载，将大量的电能转变为热能而浪费了。本装置既可作充电的电源，又可作放电的负载，将放电的电能通过有源逆变电路回馈到电网，得到再生利用，可以节约大量电能，具有推广应用价值。     

溃坝洪水演进的数值模拟

开发了溃坝洪水演进数值模型,对模型控制方程采用有限体积法进行空间离散,采用具有总变差减小特性的MacCormack预测-校正格式进行时间离散.采用非规则局部不连续网格划分计算区域,增强了模型对复杂地形的适应能力;具有总变差减小特性的数值格式使模型具备了强大的间断波捕捉能力,并消除了模型稳定性对人工黏性的依赖;基于单元属性与基于界面属性的动边界处理技术使模型能合理地模拟非恒定性强、干湿变动剧烈的水陆边界.实际算例表明：模型在强非恒定流状态下具有稳定性及守恒性,可作为溃坝洪水预报及其灾害防范的有力工具.     

感应式静电引信探测技术

目的　研究直接检测探测电极的感应电荷获得静电目标信息的静电近炸引信探测技术; 方法　采用短路轴向探测电极感应引信接近静电目标过程中电荷量的变化,并采用电荷放大器检测信号; 利用静电学的基本原理,对其进行了理论推导; 结果　得出探测方程和定距公式,以及增大探测灵敏度的设计准则; 阐述了在该种电极设置下对检测电路的要求以及环境变化对检测结果稳定性的影响; 结论　感应式静电引信探测技术适用于静电目标探测且探测距离远、不受非带电物体的干扰;     

Realtime robust speech communication based on iterative joint source-channel decoding and demodulation algorithm for MELP vocoder

Realtime speech communications require high efficient compression algorithms to encode speech signals. As the compressed speech parameters are highly sensitive to transmission errors, robust source and channel decoding and demodulation schemes are both important and of practical use. In this paper, an iterative joint source-channel decoding and demodulation algorithm is proposed for mixed excited linear prediction (MELP) vocoder by both exploiting the residual redundancy and passing soft information throughout the receiver while introducing systematic global iteration process to further enhance the performance. Being fully compatible with existing transmitter structure, the proposed algorithm does not introduce additional bandwidth expansion and transmission delay. Simulations show substantial error correcting performance and synthesized speech quality improvement over conventional separate designed systems in delay and bandwidth constraint channels by using the joint source-channel decoding and demodulation (JSCCM) algorithm.     

多功能蓝光荧光材料研究进展

有机电致发光器件(OLED)被认为是最具竞争力的下一代平板显示器和固态照明光源,而高效蓝光材料的开发是实现OLED商业化的最重要前提之一。蓝光材料固有的高能隙使电荷很难注入到发光材料中,导致蓝光电致发光器件性能较差。为了提高器件效率,可以从器件结构和材料结构两方面进行优化。就材料本身而言,通过改变分子结构,在蓝光材料的结构中引入电荷传输单元,构建多功能蓝光材料,能有效改善电荷的注入和传输。根据分子中引入的功能基团的不同,多功能蓝光荧光材料可分为空穴传输型、电子传输型及双极传输型3种,分别对这3类蓝光材料进行综述,介绍了该领域的最新研究进展。     

平面艺术设计中的形式美构成探讨

文章从艺术设计的角度,对形式美的构成、形式美共性与特性进行理论上的探讨,并以格式塔心理学为基础,从设计的角度剖析形式法则与视觉心理内在的关联。通过对形式美的理论探讨,促进人们对形式美的认知和理解,进而提升设计者在平面艺术设计中对形式美法则应用的实践。     

基于OMAP5910的出租车无线视频监控系统

将视频监控、GPS和3G技术应用于出租车的远程监控系统，解决了目前基于GSM和GPRS无线信息传输所存在的传输量不足的缺点。     

Proteome changes in the plasma of Papilio xuthus (Lepidoptera: Papilionidae): effect of parasitization by the endoparasitic wasp Pteromalus puparum (Hymenoptera: Pteromalidae)

Although the biochemical dissection of parasitoid-host interactions is becoming well characterized, the molecular knowledge concerning them is minimal. In order to understand the molecular bases of the host immune response to parasitoid attack, we explored the response of Papilio xuthus parasitized by the endoparasitic wasp Pteromalus puparum using proteomic approach. By examining the differential expression of plasma proteins in the parasitized and unparasitized host pupae by two-dimensional (2D) electrophoresis, 16 proteins were found to vary in relation to parasitization compared with unparasitized control samples. All of them were submitted to identification by mass spectrometry coupled with a database search. The modulated proteins were found to fall into the following functional groups: humoral or cellular immunity, detoxification, energy metabolism, and others. This study contributes insights into the molecular mechanism of the relationships between parasitoids and their host insects.     

谈工程投标策略

激烈的市场竞争使建筑工程业面临严峻挑战，市场规范化和法制化又为公平意识创造了条件，在这种背景下，分析投标策略，包括意义、基本类型及制定原则，从而为在竞争中抢占先机，并最终取胜提供思考。