高分子材料与工程专业生产实习实践教学探索

生产实习是高分子材料与工程专业实践教学的重要环节之一,应用型本科培养目标要求学生具有较强的动手能力、实践能力和工程能力。结合高分子材料与工程专业生产实习存在的问题,在实习基地建设、生产实习安全纪律要求及实习任务、实习内容安排及实习过程质量监控体系进行教学改革探索,以期提高学生工程实践能力。实践证明,教学改革对学生实践能力的提升有明显的推动作用。     

高分子材料与工程专业校企协同实习教学组织模式的改革与研究

针对专业生产实习效果不理想的问题,通过调研高分子材料与工程专业发展的基本概况,根据专业建设和培养所面向的化学纤维行业背景,重点分析了高分子材料与工程专业实习教学过程中参与者企业、学校和学生存在的主要问题。提出了校企合作通过协同创新教育,对一起承担学生的实习教学有着共同的目的和愿望,通过校企协同教育和实习教学组织模式的改革和有效实践,加强实习教学组织管理,改革考核和评价方法,切实提高实习效果,真正提高学生工程实践能力。     

材料化学专业生产实习的教学改革与实践

生产实习是材料化学专业重要的实践教学环节之一,生产实习在提高学生的动手操作能力、培养工程实践能力以及进一步强化学生的团结协作意识与能力、创新意识与能力、吃苦耐劳精神等起着非常重要的作用.结合我校材料化学专业的特色及人才培养目标,从实习指导教师结构、实习教学基地建设、教学任务及内容、实习过程监控、实习考核评价等方面进行了...     

基于优质生产实习基地的工业工程专业生产实习改革

阐述当前常见的工科类专业生产实习模式及其不足,指出当前常见的生产实习模式难以满足工业工程专业生产实习的较高要求。率先提出工业工程专业优质生产实习基地的定义,明确建设工业工程专业优质生产实习基地的思路,以工业工程专业优质生产实习基地为基础,提出工业工程专业生产实习的新模式。以广东石油化工学院工业工程专业2015年的生产实习为例,说明在新的生产实习模式下开展生产实习能取得更好的实习效果。     

新工科背景下制药工程专业毕业生产实习课程教学改革研究

毕业生产实习是制药工程专业的一门专业必修课程,是制药工程人才培养的重要实践教学环节.随着国家新工科建设的快速推进,社会对该课程教学提出了更高的要求.为了更好的培养出符合制药工业需要的实践能力强、素质高的工程人才,文章基于新工科人才培养的目标和要求,以西北农林科技大学制药工程专业为例,深入分析了目前毕业生产实习课程教学中...     

应用型本科油气储运工程专业生产实习教学研究与实践

专业生产实习是油气储运工程必不可少的实践教学环节。本文对油气储运工程专业生产实习教学中存在的问题进行了分析,从实习基地建设、学生安全保障、教师队伍建设、生产实习管理等方面提供了一些对策。     

地方高校安全工程专业生产实习教学改革与实践

生产实习是安全工程专业实践教学环节的重要组成部分,有助于提高本专业学生的工程实践能力。文章阐述了国内高校安全工程专业生产实习的教学现状,分析了安全工程专业生产实习中存在的主要问题,并根据工程教育专业认证标准的要求,从教学大纲、教学方法、实习基地建设、成绩考核、教材编写、教学团队建设、安全管理等方面提出了一系列改进措施,以期提高生产实习教学效果。     

工程教育认证背景下“药品生产质量管理工程”的教学与实践探索

“药品生产质量管理工程”集药学、化学、工程学与管理学为一体，是制药工程专业的一门专业必修课。以安徽中医药大学制药工程专业为例，介绍了该门课程的教学现状，并结合工程教育认证及国家级一流专业建设，进行了课程的教学与实践探索思路，提出认知实习辅助和生产实习强化课程教学，形成认知实习-药品生产质量管理工程课程教学-生产实习协同效应。     

深化实践教学改革 提高生产实习教学质量

校外生产实习是工科专业大学生在大学学习过程中必不可少的一个重要环节,对工科专业的人才培养质量有着非常重要的影响。本文针对华东理工大学制药工程专业校外实习现状,介绍了近年来该专业在校外实习基地建设、校外实习师资队伍建设、生产实习的组织和落实、实习教学模式改革等方面的举措与成效。     

“新工科”背景下包装工程专业生产实习改革探讨

基于新工科背景下包装工程专业学生生产实习面临的挑战,本文分析了目前包装工程专业生产实习主要存在的问题,对生产实习过程中企业的选择、指导教师的建设和实习管理等方面进行了改革探索。以期优化实习单位、建设指导教师队伍以及提高学生的学习积极性、创新能力和解决问题的能力,增强企业对学生质量和素质的认可度。     

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。