运转率高的系统能耗就一定低吗？

能耗与运转率的关系本应相互促进，高运转率减少了设备的开停次数，本身就是降低能耗；而且只有高运转率，才能提高总产量；加之统计运转率简单准确。所以对运转率的考核理应重视，也容易重视。     

降低合成氨综合能耗的措施探讨

合成氨综合能耗是一项综合性的指标,影响因素错纵复杂,尤以生产工艺、运转率、日均产量、原料性质、运行工况、统计方法等为主要影响因素。结合生产实际,分析诸多因素对粉煤气化型合成氨生产综合能耗的影响,旨在进一步降低合成氨综合能耗,提高企业竞争力。     

浅谈回转窑托轮装置的维护

回转窑托轮装置是回转窑重要组成部分，具有承载负荷大、工作环境差、连续性运转、维修费时费工等特点。托轮装置运行状况的好坏，直接影响整个回转窑系统的正常运转，影响系统运转率及熟料产量，因此维护保养极为重要。本文就生产过程中发现的问题及维护经验作一简介。     

高台产就一定是低能耗吗？

产量与能耗的关系并不复杂，产量低的生产线，能耗肯定高。但有人以为，只要台产高，运转率不低，能耗就一定低，导致一些企业一味地追求高产。生产的统计数据完全可以说明这种观念的错误。但遗憾的是，习惯将高产量当做高效益的管理理念及水泥企业的粗糙计量，掩盖了水泥行业过高台产所造成的高能耗现象。     

生料立磨扭矩支撑常见故障的处理与维护

扭矩支撑系统是立磨长期稳定运行的关键部件。MLS4531A型磨机扭矩支撑的主要运动部件导向装置和缓冲装置生产初期故障多,维修量大。不断改进导向装置和缓冲装置,并提高维护水平,扭矩支撑运行可靠性显著提高,磨机运转率及可靠性大幅度提升。     

延迟焦化装置的技术改造

介绍了安庆分公司延迟焦化装置为保证长周期运行，根据生产实际，优化生产方案，实行精细操作管理。对影响装置加工量、能耗的主要因素进行了分析，投用了一些节能降耗措施。装置技术经济指标和能耗水平有了一定的提高。同时针对装置存在的问题提出了一些建议和措施。     

现代水泥厂的计算机控制系统

1引言在水泥生产过程中，自动控制占着重要的位置，它能保证生产稳定，提高产质量，降低能耗和成本，提高设备运转率。现代水泥生产工艺设备的单机容量大，生产的连续性强，速度快，必须通过计算机控制系统及时地监视设备的运行状况，调整工艺参数的机动，促使生产稳定、协调，     

影响水煤浆制氢能耗主要因素分析

水煤浆制氢能耗是水煤浆生产装置一项重要的技术经济指标。结合实际生产情况，对影响水煤浆制氢能耗的主要因素进行分析。     

新型熟料库顶输送设备-DX 型多点卸料盘式输送机

新型熟料库顶输送设备—ＤＸ型多点卸料盘式输送机魏勇成都建筑材料工业设计研究院概述在水泥工业企业中，无论是主机还是辅机设备的能耗和运转率是影响企业经济效益的主要原因之一。因此，低能耗、高运转率的设备开发和应用，才具有真正的社会价值和经济价值。在当前的...     

黄磷生产中的能耗和节能措施综述(Ⅱ)

为降低黄磷生产的能耗，在探讨制磷电炉和制磷装置系统节能措施的基础上，引入了“载能体”概念，讨论了影响黄磷生产广义综合能耗的主要因素，指出制磷企业应采取的节能措施，建议要制订黄磷行业的最高能耗和设备、装置的能源利用率标准，建立节能效果的监测机构，使节能工作得以顺利开展。     

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.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。