基于物联网+虚拟仿真技术的新型化工实践教学模式的构建与探索

针对高校化工实验与实践环节虚拟仿真与实际生产脱节,存在着片段化、分散化和失真化等问题,提出将互联网、物联网等新兴技术植入教学各个环节,从而构建化工实践教学平台,将线上虚拟与线下实操有效融合,完成特定化工实践项目的知识讲授、操作训练和实践考试三个环节,形成了“线上线下”“虚实结合”化工实践教学模式,该模式增强了学生的学习主动性和积极性,是培养化工类应用型人才的有效模式之一。     

虚拟仿真在化学化工类专业实践教学中的应用探索与研究

介绍了虚拟仿真实验的含义和特点,探讨了虚拟仿真与真实实训相结合的实践教学模式在化学化工类专业实践教学中的应用。     

“一带一路”背景下石油石化国际化人才培养研究

目前我国石油化工人才培养机制与面向“一带一路”人才素质需求之间存在差距,面向海外石油化工的高层次国际化人才需求将长期存在。作者从常州大学化工类虚拟仿真实验教学平台的建设,及仿真平台在实验实践教学、学科竞赛中的应用以及教师工程实践能力的培养等方面进行了阐述,为培养具有创新实践能力、面向建设需求的石油石化人才改革提供参考。     

基于万维引擎自主开发虚拟仿真实验——以流体阻力实验为例

化工类实验具有危险且复杂多变的特点。文章以流体阻力实验为例,阐述了基于万维引擎的网 页版虚拟仿真实验的自主开发过程,包括实验设备建模和渲染、教学模块设计、软件功能开发、逐项功能 测试等内容。所开发的虚拟仿真实验实现了虚拟实验与现场实验从设备到内容的紧密关联,契合真实 的实验教学过程,为国内外学生提供了在线学习与操作练习的机会,同时也是开展线上线下混合式实验 教学的重要基础。     

应用型本科高校化学化工虚拟仿真实验中心建设探索——以徐州工程学院为例

化工行业的高温高压、易燃易爆、有毒有害的高危险性、化工企业的事故频发以及化学化工类专业学生实习参与度低、实习效果差等种种因素,都在迫切要求化学化工类本科院校在培养专业技术人才工程实践能力的过程中,开展虚拟仿真实验教学中心建设。本文通过对化学化工类本科高校及高职院校的调研,针对徐州工程学院"地方性、应用型"的办学定位,从仿真实训中心及半实物仿真工厂两个方面入手,探索了适用于地方应用型本科高校化学化工类虚拟仿真实验中心的建设之路。     

工匠精神融入教学体系提升化工技术人才培养质量

介绍了当前工匠精神融合化工类专业课程教学现状及存在问题.根据新时代工匠精神的内涵和化工行业对于工匠人才的需求,指出了高职教学体系中融入工匠精神的必要性.并提出了化工类专业教学体系中融入工匠精神的相关策略,如在化工实践教学中加强学生工匠精神的培养,以大赛为契机培养学生工匠精神,深化校企合作共同培育工匠人才等.通过采取相关措施,已构建了化工类专业校企合作工学结合核心课程教学体系,在实现工学结合培养化工类高素质高技术人才的目标上取得了较大进步.     

建设化工类国家虚拟仿真实验教学项目的实践和探索

虚拟仿真实验教学是高校实验教学的重要组成部分。文章分析了国家虚拟仿真实验教学项目建设的必要性和特质,并结合南京工业大学建设环氧乙烷生产工艺虚拟仿真实验项目的实践,从题材选取、建设方略和内容等方面进行了探讨。虚拟仿真实验教学项目有助于提高学生的工程实践能力。     

浅谈化工实验大赛对化工原理实验教学改革的作用

化工实验大赛由理论、实验以及仿真三部分组成,每年举办一次。化工实验大赛不仅促进教师教学的热情,也促进了学生学习实验课的激情。通过化工实验大赛,结合我校实际,今后化工原理实验教学应加强理论讲解、强化虚拟仿真、加强师资队伍建设、增进校际交流,从而更好地为化工行业培养具有创新能力的高素质型人才。     

大学生化工实验大赛对化工原理课程教学改革的促进作用

以大学生化工实验大赛为契机,探讨竞赛对化工原理课程教学模式改革、师资队伍建设的促进作用,以及对化工人才综合能力培养的启示。化工实验大赛对化工原理课程教学改革促进,对于提升化工类学生专业能力、实践能力和创新能力具有重要意义。     

应用型高校化工虚拟仿真教学中心建设的探析

近年来,以化工类专业为导向的虚拟实验教学模式,有效解决传统化工类专业理论与实践脱离的突出问题,对培养新工科应用型人才具有重要意义。本文结合应用型人才培养需求,分析了传统化工实验教学存在的主要问题;探讨了绿色化工技术虚拟仿真实验教学中心建设的意义、思路以及建设内容;论述了中心的功能、创新模式以及所取得对的成果。实践教学应用表明,该教学模式对提高学生的理论水平和实践能力,培养应用型人才具有良好效果。     

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.     

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。     

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.