Make a felt sample

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Make a felt sample

机译：制作毡样品

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I recommend making a 12-inch-square sample using silk gauze, chiffon, china silk, or paj (available at DharmaTrading.com and ThaiSilks.com). I purchase white silk and dye it myself. For very lightweight tops, jackets, and skirts, I use a 3.5mm to 4.5mm weight.This is also a good choice for beginning felt makers; heavier fabric creates more texture, but it takes more time and experience to master the process of felting it.

机译：我建议使用真丝纱布，雪纺，中国丝绸或帕杰（在DharmaTrading.com和ThaiSilks.com上提供）制作一个12平方英寸的样品。我购买白色丝绸并自己染色。对于重量非常轻的上衣，夹克和裙子，我使用3.5mm至4.5mm的重量。对于初学者来说，这也是一个不错的选择。较重的织物可产生更多的质感，但是要花费更多的时间和经验来掌握它的感觉。

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《Threads》 |2010年第decaajana期|54-55|共2页
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1. An Exercise in Sampling: The Effect of Sample Size and Number of Samples on Sampling Error [J] . Juan M. Sanchez World Journal of Chemical Education . 2016,第2期

机译：抽样练习：样本数量和样本数量对抽样误差的影响
2. Sampling Methodologies for Epidemiologic Surveillance of Men Who Have Sex with Men and Transgender Women in Latin America: An Empiric Comparison of Convenience Sampling, Time Space Sampling, and Respondent Driven Sampling [J] . Clark J. L., Konda K. A., Silva-Santisteban A., AIDS and behavior . 2014,第12期

机译：拉丁美洲男男性行为者和变性女性的流行病学监测抽样方法：便利抽样，时空抽样和受访者驱动抽样的经验比较
3. Variable Sample Size and Sampling Interval X Charts with Runs Rules for Switching Between Sample Sizes and Sampling Interval Lengths [J] . Shashibhushan B. Mahadik Quality and Reliability Engineering International . 2013,第1期

机译：带有运行规则的可变样本大小和采样间隔X图表，用于在样本大小和采样间隔长度之间进行切换
4. How to Estimate Statistical Characteristics Based on a Sample: Nonparametric Maximum Likelihood Approach Leads to Sample Mean,Sample Variance, etc. [C] . Vladik Kreinovich, Thongchai Dumrongpokaphan . 2018

机译：如何基于样本估计统计特征：非参数最大似然法导致样本均值，样本方差等。
5. Stratified Inverse Cluster Sampling with Updating Process for Samples from a Rare Population [D] . Kim, Sewon. 2020

机译：分层逆簇采样，具有稀有群体的样本的更新过程
6. Sampling Methodologies for Epidemiologic Surveillance of Men Who Have Sex with Men and Transgender Women in Latin America: An Empiric Comparison of Convenience Sampling Time Space Sampling and Respondent Driven Sampling [O] . J. L. Clark, K. A. Konda, A. Silva-Santisteban, -1

机译：拉丁美洲男男性行为者和变性女性的流行病学监测抽样方法：便捷抽样时空抽样和受访者驱动抽样的经验比较
7. 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。

Make a felt sample

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