首页> 美国政府科技报告 >Initial Submission: Letter from Basf Corp to USEPA Re: Preliminary Results of A Range Finding Study in Wistar Rats with 3,5-difluoroaniline, dated 06/25/99.

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Initial Submission: Letter from Basf Corp to USEPA Re: Preliminary Results of A Range Finding Study in Wistar Rats with 3,5-difluoroaniline, dated 06/25/99.

机译：初始提交：Basf Corp致UsEpa的信Re：使用3,5-二氟苯胺的Wistar大鼠的范围研究初步结果，日期为2005年6月25日。

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年度 1999
页码 1-16
总页数 16
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Toxicology; Health effects; Basf corp; Toxic substances; 3,5-difluoroaniline; Laboratory animals; Reproduction/fertility effects; Mammals; Rats; Oral; CAS No. 372-39-4;

机译：毒理学;健康影响; Basf corp;有毒物质; 3,5-二氟苯胺;实验动物;繁殖/生育影响;哺乳动物;大鼠;口服; Cas No. 372-39-4;

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1. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。
2. Initial Submission: Letter from BASF Corp. to USEPA regarding a Prenatal Toxicity Study of Trilon C in Pregnant Wistar Rats by Gavage with Cover Letter dated 07/14/1992 [R] . 1992

机译：初步提交：巴斯夫公司致美国环保局关于孕妇Wistar大鼠Trilon C产前毒性研究的信函，其填写日期为1992年7月14日

Initial Submission: Letter from Basf Corp to USEPA Re: Preliminary Results of A Range Finding Study in Wistar Rats with 3,5-difluoroaniline, dated 06/25/99.

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