二氧化碳传质系数KG.a计算公式的经验回归

采用非线性最小二乘法对本菲尔溶液ＣＯ２吸收传质系数ＫＧ．ａ的数学模型ＫＧ．ａ＝Ａ（Ｌ／０．１０２ｕｌ）＾Ｂ「１＋Ｃ（ＦＣ２－ＦＣ１）Ｍｅ＾（０．０１２ｔ－９．８６９ｐＣＯ２）」中的参数Ａ、Ｂ、和凯洛格Ｂ厂，东洋工程公司和赫尔公司的生产数据进行经验回归，回归后得到Ａ、Ｂ、Ｃ的值分别为０．２７４４，０．２３７６，２．１０９，结果ＫＧ．ａ公式的计算值与实验值的相地残差均在１０％以下。     

多段内导流筒气升式反应器中气体分布器对气含率和气液传质特性的影响

在为微生物高密度培养而设计的１０Ｌ多段内导流筒气升式生物反应器中，研究了Ｎａ２ＳＯ３－空气体系单孔喷嘴和烧结金属管等不同气体分布器对气含率ε、体积氧传质系数ＫＬａ和流动特性的影响．结果表明，孔径为２０～２５μｍ的烧结金属管的整体性能最好，在最佳操作气速３．７～４．０ｃｍ／ｓ下，ε超过１９％，ＫＬａ可达０．２９ｓ－１．其ε和ＫＬａ随Ｕｇ有如变化规律：ε＝０．１９５２－１．５３５１０－２ｅ－１．３９１ＵｇＫＬａ＝０．２７＋２．９７１０－２Ｕｇ－７．２３１０－３Ｕ２ｇ（１．５＜Ｕｇ＜６ｃｍ／ｓ     

合成三聚氯氰的氯化和聚合反应宏观动力学研究

利用非等温固定床反应器，研究了三聚氯氰合成的氯化和聚合反应宏观动力学，实验表明氢氰酸与氯气的氯化反应为气相均相反应，而氯氰的聚合反应为吸附在活性炭表面上的氯氰表面反应为控制步骤的气固催化反应。实验测得氯化反应的宏观反应动力学方程为对氢氰酸的一级反应，即（－ｒＡ）１＝２．４５×１０７ｅｘｐ（－２．９０×１０４／ＲＴ）ｃＡ测得聚合反应的宏观动力学方程为（－ｒＡ）２＝ｋ［ｐ３Ａ－ｐＲ／Ｋｐ］／［１＋ＫＡｐＡ＋ＫＲｐＲ］３ｋ＝４．０×１０７ｅｘｐ（－４．３５×１０４／ＲＴ）Ｋｐ＝６．７６×１０－２３ｅｘｐ（３．５２×１０５／ＲＴ）ＫＡ＝４．０×１０３ｅｘｐ（－３．３９×１０４／ＲＴ）ＫＲ＝１．０５×１０３ｅｘｐ（－５．０２×１０４／ＲＴ     

带水平吹气管L阀的特性及公式

针对带水平吹气管Ｌ阀吹气量、水平管吹气管的伸入深度、管径以及不同高度吹气口地循环流化床（ＣＦＢ）固体颗粒循环的影响进行了研究。根据实验数据得出适合于带有水平吹气管Ｌ阀的经验关联式Ｇ２／Ａ＝０．０１５６ＣＤ√２ｐｓ（１－εｍｆ）△ＰＬＶ（１－ＸＬ）＾０．３３３（ＵＬ／Ｕｔ）＾０．８１８。     

气固两相流量测量模型的研究：气力输送流动特性的实验探讨

通过对稀相气力输送粉料压损比与混和比比例关系式（ΔＰｔ／ΔＰｇ＝１＋Ｋｍ）中比例系数Ｋ的实验研究，获得了关于Ｋ的经验公式：Ｋ＝１／λｇ（２．５２７９／Ｆｒ＾１．５１８３）。建立了基于此比例关系式－速度法粉料流量测量模型｛ｍｓ＝ｋｃπ／２Ｄ＾３（ΔＰｔ－λｇＬ／ＤρｇＶｇ＾２／２）λｇ＝０．３１６４／Ｒｅ＾０．２５（Ｒｅ〉２３２０）κｃ：校正因子实验验证相应的粉料流量检测系统的测量精度为５％，满足工     

带分段导流筒的气升式环流反应器的研究

带分段导流筒的气升式环流反应器是具有独特的两相流动和传质特性的一种多相反应器。本文用水－空气和亚硫酸钠（１０％－空气体系研究了分段导流筒环流反应器的气含率ε、氧消耗速率ｒｏ２、传质比表面ａ、以及体积传质系数ｋＬａ随表观气速变化规律，并与一段导流筒的环流反应器进行了比较。实验采用的表面气速下（０－６ｃｍ／ｓ），导流筒分段的环流反应的εｒｏ２，ａ和ｋＬａ有显著提高，平均比一段环流反应器高出１０％以上。     

内环流反应器中磷酸氨化宏观动力学研究

采用内环流反应器小试装置进行了磷酸氨化反应过程的宏观动力学研究。指出在本实验范围内，气膜传质系数ＫＧａ与气氨喷速Ｕｇ、进料液气比Ｌ／ＰＱ１之间满足如下关系：ＫＧａ＝１０．４３×１０１０（Ｌ／ＰＱ１）２．２３Ｕｇ－３．９５，为“磷酸氨化内环流反应器”的进一步开发打下了一定的基础。     

丙烯氨氧化合成丙烯腈流化床反应器的模型拟合

基于反应动力学实验结果,分析考察了丙烯氨氧化反应的动力学行为,提出了关于反应转化率与目的产物收率的幂函数形式的拟合模型,藉此对某厂丙烯腈工业流化床反应器的操作数据进行了关联,在考虑反应器中气－固流动影响的前提下,建立了丙烯腈反应器的下述宏观数学模型：反应转化率Ｘ＝０．８３２５ｕ－０．１０５８Ｒ－０．０１６４ＮＨ３Ｒ０．２５０９Ｏ２ｅｘｐ（－０．７４５９＋３５９．７９／Ｔ）丙烯腈单收ＹＡＮ＝０．０８９６ｕ０．０３４２Ｒ０．２３３３ＮＨ３（５．８２４５ｅｘｐＲ１．１３３７Ｏ２－Ｒ４．７４４５Ｏ２）ｅｘｐ（－２．０６５１＋５２２．９８／Ｔ）模型拟合的相对误差小于１０％．     

NCAS系统玻璃陶瓷烧结晶化模型探讨

文章通过ＮＣＡＳ体系尾矿玻璃陶瓷体系设计基础讨论，确定了合理的配方化学组成，进行了烧结晶化实验和动力学分析。从有限结晶体系出发，提出将时间参数引入晶体生长速度公式，结合试验结果，通过数学拟合，得到了晶化率公式ｐ＝３（γ／ｒ）．ａ０．（１－ｅ＾－ｔ）「１－ｅｘｐ（－ΔＧ／ＫＴ）」，可更准确地反映实际玻璃陶瓷体系晶化行为。     

固体电解质La_（1－x）Ca_xF_（3－x）的阻抗谱研究

在４２３～７７３Ｋ温度范围内利用阻抗谱测定了多晶固体电解质Ｌａ＿（１－ｘ）Ｃａ＿ｘＦ＿（３－ｘ）（ｘ＝０．０１，０．０３，０．０５，０．０７，０．０９）的电导率随ＣａＦ＿２含量的变化及其在不同温度区间的表现电导激活能。结果表明，掺入１％～９％（ｍｏｌ）ＣａＦ＿２的ＬａＦ＿３其电导率比ＬａＦ＿３单晶有很大提高（１０倍左右），其电导率数量级在１０￣（－４）～１０￣（－２）Ｓ·ｃｍ￣（－１）之间，其中Ｌａ＿（０．９５）Ｃａ＿（０．０５）Ｆ＿（２．９５）具有最高的电导率。     

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。