破乳+Fenton试剂法处理高浓度废乳化液的研究

采用破乳-Fenton试剂法对机械厂磨床车间废乳化液进行处理(原水CODcr=290000mg／L，BOD5=28000mg／L)。结果表明：使用合适的破乳药剂，破乳后废水的CODcr去除率达到97．8％；之后投加适量的Fenton试剂进行氧化处理，最终出水CODcr为684mg／L；BOD5／COD由0．094增至0．47，可生化性大大提高。     

β-Phellandrene: kairomone for pine engraver,Ips pini (Say) (Coleoptera: Scolytidae)

The responses ofIps pini (Scolytidae) to multiple-funnel traps baited with the pheromone, ipsdienol, and various monoterpenes were determined in stands of lodgepole pine in southern and central British Columbia.Ips pini was attracted to both ipsdienol and -phellandrene, demonstrating that -phellandrene is a kairomone for this species.Lasconotus complex (Colydiidae) and aCorticeus sp. (Tenebrionidae) were attracted to both ipsdienol and -phellandrene. TheCorticeus sp. exhibited a synergistic response to the combination of ipsdienol and -phellandrene; the responses of the other two species to the combination were additive. The predators,Thanasimus undatulus, Enoclerus sphegeus, andE. lecontei (Cleridae), were attracted to ipsdienol-baited traps, whileMonochamus clamator (Cerambycidae) andDendroctonus ponderosae (Scolytidae) were attracted to -phellandrene. Attraction of all eight species increased with increasing release rates of ipsdienol and/or -phellandrene.     

Ausgleich der Volatilität der Erneuerbaren Energien mittels Wärmespeichern auf Salzbasis

To compensate for the volatility of renewable energies, solutions beyond fossil reserve power plants are needed. One approach is salt-based heat storage with phase change materials (PCM). In order to achieve economic efficiency, ambitious targets are required. A sensible and latent heat storage system for the temperature range around 400 °C based on salts and thermal oils with high development potential is presented.     

基于PC机和80C196单片机的温度微机控制系统

文章介绍了由PC机和80C196单片机构成的热处理温度微机控制系统,并就集中温度数据采集方法、PC机和单片机的数据通信格式、单片机软硬件设计、双向晶闸管的触发电路等相关技术进行了分析,给出了串行通信中断接收及数据处理程序设计流程图.     

LM3S9896的μDMA高速网络驱动程序设计

针对Cortex—M3核的微控制器LM3S9896,提出了一种基于tzDMA的高速网络驱动程序的设计方案。在简要介绍LM3S9896的以太网控制器、网络驱动程序的作用后,对该网络驱动程序设计的各个部分进行了详细描述,包括网络驱动初始化程序、数据包发送程序、数据包接收程序和中断处理程序等。     

Superconductivity in the tetragonal phase of La1.9Bi0.1CuO4+δ annealed under high oxygen pressure

We have investigated the relation between the crystal structure and superconductivity in La_1.9Bi_0.1CuO₄₊ , in which the phase separation observed in La₂CuO₄₊ is suppressed. A phase diagram in theT– plane is given for La_1.9Bi_0.1CuO₄₊ with excess oxygen. For very small values, the crystal structure is orthorhombic, and an orthorhombic-tetragonal phase transition occurs markedly at 0.03 in the measured temperature range between 13 and 293 K. Superconductivity is observed in the range of 0.04<<0.11. This is clear evidence thathigh-T _c superconductivity also appears in the tetragonal phase.     

出现网的t型s切和t切

首先引入出现网的t切的转移的概念,利用t切的转移集τ,可以得到t切p[τ]。其次引入s切的伴随集E(u)和t型s切的概念。证明了出现网的t型s切和t切有对应的关系以及这种对应关系保持t型s切的转移和t切的转移。给出了在s切有向图中查找t切的算法,证明了出现网的t切都是t型s切的伴随集。     

t分布下基于核函数的最大后验概率分类方法

针对多元正态分布不能适应样本数据严重拖尾现象的问题,提出t分布下的多分类识别方法。利用核技术将样本数据扩展到高维特征空间中,采用贝叶斯分类器得到最大后验概率,进而得到分类结果。由于可以调整t分布中的自由度参数v,因此更容易满足数据样本的不同拖尾情况,具有较好的稳健性。在5个国际标准UCI数据集和3个人脸数据集上进行了大量实验,实验结果表明,该方法有较好的分类效果,具有可行性。     

进程迁移研究

进程迁移在分布式系统中的应用,提高了系统的负载平衡,实现了高效的容错性能。本文介绍了进程的状态迁移算法以及检查点的设置和其它状态的迁移技术。