浅谈烟气净化系统工艺原理

烟气净化工艺由下列系统组成：石灰浆液配制系统、石灰或碳酸氢纳喷射系统、SNCR系统、应急状态氢氧化钠溶液喷射系统、喷雾反应系统、袋式除尘器系统、活性炭喷射系统、SCR系统、CEMS系统、飞灰输送系统、引风机、烟道及烟囱。     

橡胶密炼生产线的多层计算机监控系统

介绍橡胶密炼生产线生产过程多层计算机监控系统的架构及软件实现。该系统由直接过程控制级，一、二级监控系统和网络通讯系统组成。直接过程控制级面向生产过程，一级监控系统面向运行人员，二级监控系统面向管理人员。该系统具有良好的可扩展性，可作为流程工业过程计算机集成制造系统的一个予系统。     

1种钾肥生产组合式设备

介绍了1种生产钾盐的组合式设备,该设备由2个原矿仓及上料系统、2个磨矿分级系统、浮选系统、药剂制备系统、精矿浓密及分离系统、粗钾过滤及洗涤系统和干燥包装系统组成;2个原矿仓及上料系统与2个磨矿分级系统一一对应相连接;浮选系统分别与原矿仓及上料系统、磨矿分级系统、药剂制备系统、精矿浓密及分离系统、粗钾过滤及洗涤系统相连;干燥包装系统分别与精矿浓密及分离系统、粗钾过滤及洗涤系统相连。投入应用后,有效地提高了资源利用率,降低了副产品和废液的排放量,同时提高了原料种类和品位的适应性。     

干冰清洗系统简介

简要介绍干冰清洗系统的各个组成部分：液体二氧化碳储存系统、干冰制造系统、干冰保存系统、压缩空气供应系统、喷射清洗系统。     

为什么要进行循环冷却水系统的清洗和预膜?

循环冷却水系统无论是新系统或老系统,在开车正常投药之前都要进行系统的清洗和预膜工作。清洗和预膜工作被称为循环水系统化学处理的预处理。     

油库自动化系统

油库自动化系统的建立是提升企业整体素质的重要手段。本文主要探讨油库自动化的设计和组成,对油库自动化系统目标、功能,结构及所关联的分项系统进行描述。油库自动化系统可分为4个方面：办公自动化系统、工业自动化系统、安全消防系统、工业监控系统。     

MIMO技术在卫星通信系统中的应用

针对卫星通信系统的特点,提出MIMO技术在单卫星和多卫星场景下的应用。首先分析了MIMO卫星通信系统在采用再生转发和透明转发情况下的系统容量,随后对单卫星及多卫星系统分别提出了采用正交分组码及其分布式改进形式的MIMO系统方案,最后对影响MIMO卫星通信系统的因素进行讨论。相比点对点卫星通信系统,MIMO卫星通信系统能够大大提高系统容量和频谱利用率。设计将正交分组码及其分布式改进形式在单卫星及多卫星系统中进行应用,MIMO卫星通信系统的性能将获得进一步的提升。     

全厂停电以及DCS死机的应急操作#br#

在水泥厂生产过程中由于系统停电和DCS死机给设备及耐火材料造成损害的现象频繁出现，处理不当还有可能危及人身安全。总结了系统停电和DCS死机之后回转窑系统、立磨系统、水泥磨系统、煤磨系统的操作，避免给系统造成较大的损失。     

重型汽车变速箱水性涂料涂装工艺

介绍了重卡变速箱的水性涂料喷涂工艺方案、前处理系统、输调漆系统、喷涂系统、人工喷涂系统、喷漆室系统和烘干系统的特点和要求。     

一种新型太阳能溶液预处理电渗析再生系统

太阳能溶液除湿空调系统是一种具有较大节能潜力的新型空调系统。然而,太阳能热再生系统严重依赖于环境工况,在高温或高湿的气候条件下其再生后得到的除湿溶液将不能满足除湿的需求。提出一种用于溶液除湿空调系统的新型太阳能溶液预处理电渗析再生系统,分析了该系统的工作原理,建立了该系统的耗能模型,并与传统太阳能热再生系统进行了对比研究。研究结果表明,太阳能溶液预处理电渗析再生系统具有较高的节能潜力。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Many Drugs of Abuse May Be Acutely Transformed to Dopamine,Norepinephrine and Epinephrine In Vivo

It is well established that a wide range of drugs of abuse acutely boost the signaling of the sympathetic nervous system and the hypothalamic–pituitary–adrenal (HPA) axis, where norepinephrine and epinephrine are major output molecules. This stimulatory effect is accompanied by such symptoms as elevated heart rate and blood pressure, more rapid breathing, increased body temperature and sweating, and pupillary dilation, as well as the intoxicating or euphoric subjective properties of the drug. While many drugs of abuse are thought to achieve their intoxicating effects by modulating the monoaminergic neurotransmitter systems (i.e., serotonin, norepinephrine, dopamine) by binding to these receptors or otherwise affecting their synaptic signaling, this paper puts forth the hypothesis that many of these drugs are actually acutely converted to catecholamines (dopamine, norepinephrine, epinephrine) in vivo, in addition to transformation to their known metabolites. In this manner, a range of stimulants, opioids, and psychedelics (as well as alcohol) may partially achieve their intoxicating properties, as well as side effects, due to this putative transformation to catecholamines. If this hypothesis is correct, it would alter our understanding of the basic biosynthetic pathways for generating these important signaling molecules, while also modifying our view of the neural substrates underlying substance abuse and dependence, including psychological stress-induced relapse. Importantly, there is a direct way to test the overarching hypothesis: administer (either centrally or peripherally) stable isotope versions of these drugs to model organisms such as rodents (or even to humans) and then use liquid chromatography-mass spectrometry to determine if the labeled drug is converted to labeled catecholamines in brain, blood plasma, or urine samples.     

Novel polyurethane coating technology through glycidyl carbamate chemistry

Glycidyl carbamate chemistry combines the excellent properties of polyurethanes with the crosslinking chemistry of epoxy resins. Glycidyl carbamate functional oligomers were synthesized by the reaction of polyfunctional isocyanate oligomers and glycidol. The oligomers were formulated into coatings with several amine functional crosslinkers at varying stoichiometric ratios and cured at different temperatures. Properties such as solvent resistance, hardness, and impact resistance were dependent on the composition and cure conditions. Most coatings had an excellent combination of properties. Studies were carried out to determine the kinetics of the curing reaction of the glycidyl carbamate functional oligomers with multifunctional and model amines. Detailed kinetic analysis of the curing reactions was also undertaken. The results indicated that the glycidyl carbamate functional group is more reactive than a glycidyl ether group. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, on October 27–29, 2004, in Chicago, IL.