化工专业卓越工程师教育培养可行性分析

从培养标准和知识、素质、能力结构及实现途径分析了学校教育培养的可行性,从培养模式、教学内容及实施途径分析了培养方案的可行性,从培养标准及方式、培养课程及管理、培养企业及师资分析了企业学习阶段培养方案的可行性,结果表明,化工专业实施卓越工程师教育培养计划是完全可行的。     

生物化工创新人才培养模式探索

将常规培养模式和特色培养模式相结合,探索生物化工创新人才的培养模式。该模式以培养创新人才为目标,在常规培养模式的基础上,围绕着特色班创新制度和创新人才的选拔,教师创新活动及课程设置等因素,逐步形成了生物化工创新人才培养模式。该模式对培养适应新形势的高素质人才具有重要意义。     

微藻生物膜培养装置的研究进展

广泛应用的微藻悬浮培养装置存在CO_2和光照利用效率低、收获困难等问题,限制了微藻产业的进一步发展。微藻生物膜培养装置可以有效避免悬浮培养中存在诸多问题,在近年来被广泛研究。为了深入研究微藻生物膜培养装置的理论,进一步探讨其在现实中的应用,综述了目前常见的微藻生物膜培养装置,总结了其在微藻培养和废水处理领域的优势,并对今后微藻生物膜培养装置的技术发展进行了展望。     

提高工程硕士研究生创新实践能力的探索与实践

分析了工程硕士研究生培养过程存在的问题,结合重庆工商大学环境工程领域工程硕士研究生的培养,从培养模式、实践平台的搭建、课程体系设置、导师团队的组建、培养过程管理等方面,对提高工程硕士研究生创新实践能力的培养进行了探索和实践。结果表明,提高了研究生的培养质量,毕业研究生得到社会的认可。     

研究生创新能力培养的几点思考

创新型人才的培养是培养高素质人才的关键,文章从研究生创新能力培养的角度出发,分析了影响研究生创新能力培养的原因,并分别从研究性教学的开展,导师的作用和建立校内研究生实践基地三个角度提出了研究生创新能力培养的可行性方案。     

化工专业卓越计划实施条件分析

从学校概况、组织管理、质量保障、师资队伍建设、政策支持与经费保障分析了学校培养条件,从教师队伍、教学资源、教学管理分析了学院培养条件,从培养课程及管理、培养企业及师资分析了合作企业培养条件。结果表明,学校和企业的培养条件均能满足卓越工程师高校与企业联合培养机制的要求,化工专业实施卓越计划是完全可行的。     

对高校研究生创新能力培养的探索研究

研究生的创新能力培养是研究生教育的核心内容,更是提高研究生培养质量的重要标志。文章以我校化学工程与技术硕士点为例,从研究生的招生选拔、培养方案设置、学术环境建设、导师队伍建设、激励机制建设等方面出发,改革完善研究生的培养模式,全面提高研究生的创新能力和培养质量,努力培养适应社会发展的创新型人才。     

“工学结合”模式下学生党员的培养发展

工学结合办学模式下学生党员的培养发展,是新时期职业教育中出现的新情况、新问题,也是学生党员培养发展工作的新思路.文章从促进学生党员的培养发展、工学结合过程中,校企在培养发展学生党员中的地位作用和具体措施等三个方面,分析阐述了工学结合过程中中学生党员的培养发展问题,有助于推动高职院校学生党员的培养发展工作.     

体外培养环境对脐血CD34~+造血干/祖细胞基因表达的影响

目的研究体外培养环境对脐血CD34+造血干/祖细胞基因表达的影响。方法脐血单个核细胞(MNC)在静态和动态培养系统中培养7d后,收集CD34+造血干/祖细胞,利用SMART-PCR技术从少量RNA中扩增cDNA用于标记探针,与基因芯片杂交后分析培养前后以及不同培养模式下培养的CD34+造血干/祖细胞基因表达的差异。结果在所检测的588个基因中,45个基因在培养前后的CD34+造血干/祖细胞中差异表达,其中20个基因在培养后表达上调,25个基因表达下调。另外,12个基因在不同培养模式中差异表达,只有CCL2在动态培养中高表达,而其余11个基因均在静态培养中高表达。结论通过分析体外培养环境对CD34+造血干/祖细胞基因表达的影响,可以在分子水平上理解CD34+造血干/祖细胞对培养环境的生理响应。     

地方本科院校材料与化工专业学位研究生培养实践与思考

专业学位研究生教育是地方院校研究生培养中的重要组成部分,而创新能力和实践技能的培养是专业学位研究生培养的重要环节,校企双方深度融合构建专业学位研究生培养模式显得尤为重要。本文以五邑大学材料与化工专业学位研究生培养为例,围绕如何重构课程体系,如何培养本校优质生源,如何加强校内校外双导师工程实践指导,如何结合企业需求进行学位论文选题,如何凝练专业特色等方面进行了探讨,为地方院校专业硕士研究生高质量培养提供参考。     

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。