基于DCS/MES/ERP集成系统在水泥企业的研究与应用

水泥企业建立基于DCS/MES/ERP的集成系统,可以实现业务管理层与生产现场的信息互通和数据共享,并有效实施管控一体,极大提高企业的自动化水平和管理效率。一方面,ERP系统制定的工作计划能及时下达到生产现场控制生产;另一方面,生产现场的数据能及时反馈到信息管理系统提供决策支持。     

石化MES系统数据库备份与恢复

MES(Manufacturing Execution System)系统在流程工业综合自动化系统ERP/MES/PCS框架结构中处于中间的关键层。它向上连接企业资源计划(ERP),向下连接过程控制(PCS)。MES在石化企业的综合自动化中起到了承上启下的作用,是整个流程工业综合自动化技术发展的关键。文章主要讲述MES系统的功能、系统数据库的架构,系统的数据备份与数据恢复。     

基于Pentaho的水泥企业商业智能信息系统开发

通过ERP与商业智能的系统集成,即在水泥企业ERP系统基础上构建基于Pentaho的商业智能信息系统,可以实现对ERP系统中海量历史数据的深度利用,为水泥企业提供决策支持。基于Pentaho的商业智能解决方案,可以实现水泥销售的多维分析,其结果直观、高效。     

国内外简讯2则

△风神轮胎股份有限公司被焦作市工业和信息化局评为第1批"河南省信息化和工业化融合示范企业"。公司深入贯彻落实科学发展观,加快信息化建设步伐,深化信息技术应用,目前已建设完成OA办公自动化平台、K/3ERP系统、生产管理系统、MES系统、子午线轮胎条码信息系统、集     

水泥企业制造执行系统MES应用开发

介绍制造执行系统MES应用特点，结合水泥企业生产实际需要，采用C／S、B／S混合模式以及ASP．NET、VFP、SQL Server 2000和组态王6．5设计开发水泥企业MES系统。给出了整个系统的设计原理、软硬件结构图，着重分析说明了B／S子系统和后勤管理模块的开发过程、技术关键及具体实现方法和运行结果。该系统已在福建省某水泥有限公司成功运行。     

炼化企业生产信息化建设及系统集成研究

针对炼化企业在生产方面信息化的需求,从生产运行系统(MES),健康安全环保管理以及一体化供应链三个方面分析信息系统对炼化企业精细化生产及管理的有效支持。同时对系统建设过程中的集成与统一进行了研究与分析,提出整体的设计方案。     

浅谈制造执行系统在轮胎行业的应用

制造执行系统（MES）能够弥合企业计划层（ERP）和生产车间过程控制系统（PCS）之间的间隔,解决＂信息孤岛＂,在制造过程信息集成中起到纽带的作用。制造执行系统（MES）的实施,为企业生产管理流程进行重组和制造过程的整体优化,帮助企业实施完整的闭环生产,同时也为敏捷制造企业的实施提供了良好的基础。     

信息化--轮胎企业稳定与变革的平衡器

介绍了轮胎企业信息化系统三大组成部分（企业资源规划系统ERP、制造执行系统MES、电子商务系统E-Business）的主要功能.详细叙述了ERP系统中的人力资源管理功能和技术管理功能,并说明该系统在传统产业中的价值和作用.通过实践验证,信息化系统给企业带来很高的经济效益,文中给出明确数据.     

炼油企业MES系统的探索与实践

介绍了中国石化金陵分公司开发生产执行系统(MES)的背景和目标,提出了实现物料日平衡思路及实现该目标所采用的技术方案,实现了物料平衡日计算、罐组分跟踪、ERP数据接口等功能,满足了炼油企业生产管理精细化、科学化的要求,与ERP系统实现了集成,为ERP系统各模块提供了可靠的数据支持.     

自动化生产数据采集在MES系统中的运用

采用PLC或工控机对自动化进行控制,由于设备厂商数据接口和格式各不相同,设备信息不能集中共享,形成了很多＂信息孤岛＂。MES是将企业的ERP系统和底层的自动化系统集成在一起的中间层管理软件,主要用于对车间的生产、质量、设备等方面进行详细作业计划、实时信息反馈和数据分析。本文根据具体的MES事例,描述了自动化生产数据采集在MES系统中的运用。     

Sapindaceae,cyanolipids, and bugs

Scentless plant bugs (Heteroptera: Rhopalidae) are so named because adults of the Serinethinae have vestigial metathoracic scent glands. Serinethines are seed predators of Sapindales, especially Sapindaceae that produce toxic cyanolipids. In two serinethine species whose ranges extend into the southern United States,Jadera haematoloma andJ. sanguinolenta, sequestration of host cyanolipids as glucosides renders these gregarious, aposematic insects unpalatable to a variety of predators. The blood glucoside profile and cyanogenesis ofJadera varies depending on the cyanolipid chemistry of hosts, and adults and larvae fed golden rain tree seeds (Koelreuteria paniculata) excrete the volatile lactone, 4-methyl-2(5H)-furanone, to which they are attracted.Jadera fed balloon vine seeds (Cardiospermum spp.) do not excrete the attractive lactone. Loss of the usual heteropteran defensive glands in serinethines may have coevolved with host specificity on toxic plants, and the orientation ofJadera to a volatile excretory product could be an adaptive response to save time.Mention of a commercial product does not consititute an endorsement by the USDA.     

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.     

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.     

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.     

2008～2009年世界塑料工业进展

收集了2008年7月～2009年6月世界塑料工业的相关资料,介绍了2008～2009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、环氧树脂、不饱和聚酯树脂)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。