Absolute diameter

If the absolute diameter or radius of a polymer coil is known, a direct calculation of a critical concentration is possible without viscosimetric data. Common methods for the determination of absolute coil dimensions are the different light scattering methods. The critical concentration calculated from these dimensions is therefore often denoted as the critical concentration of light scattering, c ls> since the radius R (see Chap. 8) can be determined directly from static light scattering. 

Fiber or yam absolute diameter depending on fiber density... 

To estimate the vessel diameter change we correlate the image for evaluation with a reference image. With this method, vessel segmentation and absolute diameter measurement are not required the change in the caliber is identified from the relative changing pattern with the reference image rather than the absolute value of the diameter. 

The echo amplitude Ar of a reference reflector depends on the type, size (diameter) d f, and distance Sr,., of the reference reflector, and additionally on a possible attenuation in the reference block and finally the absolute gain setting of the instrument G f. In a combined DAC/DGS evaluation program we define the following ... 

Laser-based profilometry is now being applied to a wide variety of both NDT and Quality Control gauging applications. In the world of NDT, the primary interest is in the details associated with surface topography or deformation of a particular component. Laser-based profilometry systems are commonly used to inspect surfaces for defects such as pitting, corrosion, deformation and cracking. Quality control gauges are used for absolute measurement of dimensions, such as the diameter and thickness of a given part. 

Stainless steel flat six-blade turbine. Tank had four baffles. Correlation recommended for ( ) < 0.06 [Ref. 156] a = 6( )/<, where d p is Sauter mean diameter when 33% mass transfer has occurred. dp = particle or drop diameter <3 = iuterfacial tension, N/m ( )= volume fraction dispersed phase a = iuterfacial volume, 1/m and k OiDf implies rigid drops. Negligible drop coalescence. Average absolute deviation—19.71%. Graphical comparison given by Ref. 153. ... 

Isothermal Gas Flow in Pipes and Channels Isothermal compressible flow is often encountered in long transport lines, where there is sufficient heat transfer to maintain constant temperature. Velocities and Mach numbers are usually small, yet compressibihty effects are important when the total pressure drop is a large fraction of the absolute pressure. For an ideal gas with p = pM. JKT, integration of the differential form of the momentum or mechanical energy balance equations, assuming a constant fric tion factor/over a length L of a channel of constant cross section and hydraulic diameter D, yields,... 

Absolute fQtration rating (larg t particle passed) The diameter of the largest hard spherical particle that will pass through a filter under specified test conditions. This is an indication of the largest opening in the filter cloth. 

A 3,500-gal reaetor with styrene monomer undergoes adiabatie polymerization after being heated inadvertently to 70°C. The maximum allowable working pressure (MAWP) of the reaetor is 5 bar absolute. Determine the relief vent diameter required. Assume a set pressure of 4.5 bara and a maximum pressure of 5.4 bara. Other data and physieal properties are given as follows [12] ... 

Absolute roughness The roughness of a pipe or duct wall, normally expressed as a dimensionless ratio of the linear measure of the internal roughness divided by the diameter. 

Air filter A device that removes particulate matter from a gas flowing through it. These are classified as Absolute A high-efficiency particulate air filter that is at least 99.79% efficient in the removal of thermally generated mOnodisperse dioctylphthalate smoke particles with a diameter of 0.3 pm, also known as a HEPA filter. 

On the other hand, as the width of a closed three-dimensional gap V is decreased, L(T>)) gradually decreases for absolutely flexible chains whereas for semi-rigid chains it goes through a minimum at D = 2 monomer diameters and then grows again for D = 1 (Fig. 15). 

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