The Oxygen Correction Factor, OCF, is calculated as 14 divided by the volumetric fraction of oxygen in air on a dry basis minus the measured fraction of oxygen in the stack. Note that the 14 in the OCF is 21, the normal oxygen concentration in air, minus 7, the concentration of oxygen reference. For this example, the OCF is calculated to be 0.875.

Suitable for most HVAC applications, it provides a transition from a flat surface like a plenum (made of metal, duct board, or insulated) to round pipe or insulated flexible duct. Can also be used with unlined plenums. Extra-long tabs to fit all ductboard thicknesses through 1 …

As another example, a regulation might limit the concentration of particulate matter to 0.1 grain per standard cubic foot (i.e., scf) of dry exhaust gas corrected to 12 volume percent CO 2. Environmental agencies in the USA often denote a standard cubic foot of …

The Perkin Elmer DSC-7 Differential Scanning Calorimeter permits the direct calorimetric measurement, characterization and analysis of thermal properties of materials.

DSCF法基于标准化的Wilcoxon统计量z，DSCF统计量等于√2z，DSCF法计算的P值仍然基于前面方差分析中介绍的学生化极差q统计量，比较DSCF值与对应的q界值，如果大于q界值，则认为有统计学意义。

See more than you ever thought possible with our advanced line of differential scanning calorimetry (DSC) solutions. Whether you're performing QA/QC applications, studying processes in polymers or pharmaceuticals, or developing the cures of tomorrow, our new DSC platforms will open your eyes to a world of exciting new opportunities.

Never run halogenated materials: they eat the cell! Never degrade samples in the cell: but you have to know the degradation temperature first; how? By running a TGA or capillary mp first! Make sure sample is dry or leave the lid off to let volatiles leave.

2024年1月8日 · The PerkinElmer DSC-7 Differential Scanning Calorimeter permits the direct calorimetric measurement, characterization and analysis of thermal properties of materials.

The PerkinElmer DSC 7 is a top-of-the-line differential scanning calorimeter that provides advanced thermal analysis capabilities. It uses precise temperature control and heat flow measurement to provide valuable information on the thermal behavior of materials.

2024年9月4日 · DSCF并不是特指某一款相机品牌或型号，而是富士相机在拍照时默认生成的照片文件名前缀。 这个前缀在数码相机领域常被用作区分不同品牌或相机拍摄的照片文件，类似于索尼相机使用DCS作为前缀，尼康使用DSCN，佳能使用IMG等。