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2. Sauter mean diameter - Wikipedia

   en.wikipedia.org/wiki/Sauter_mean_diameter

   In fluid dynamics, Sauter mean diameter (SMD) is an average measure of particle size. It was originally developed by German scientist Josef Sauter in the late 1920s. [1] [2] It is defined as the diameter of a sphere that has the same volume/surface area ratio as a particle of interest. Several methods have been devised to obtain a good estimate ...

3. Particle-size distribution - Wikipedia

   en.wikipedia.org/wiki/Particle-size_distribution

   λ: Gas mean free path (cm) D 50: Mass-median-diameter (MMD). The log-normal distribution mass median diameter. The MMD is considered to be the average particle diameter by mass. σ g: Geometric standard deviation. This value is determined mathematically by the equation: σ g = D 84.13 /D 50 = D 50 /D 15.87

4. Spray (liquid drop) - Wikipedia

   en.wikipedia.org/wiki/Spray_(liquid_drop)

   • Sauter Mean Diameter (SMD) or D32 Fineness of spray expressed in terms of surface area produced by the spray. Diameter of a drop with the same volume-to-surface area ratio as the total volume of all the drops to the total surface area of all the drops . • Volume Median Diameter (VMD) DV0.5 and Mass Median Diameter (MMD)

5. De Brouckere mean diameter - Wikipedia

   en.wikipedia.org/wiki/De_Brouckere_mean_diameter

   The most prominent examples are laser diffraction [3] and acoustic spectroscopy (Coulter counter). The De Brouckere mean is defined in terms of the moment-ratio system as, [,] = Where n i is the frequency of occurrence of particles in size class i, having a mean D i diameter. [2] Usually in logarithmic spaced classes, the geometric mean size of ...

6. NYT ‘Connections’ Hints and Answers Today, Thursday, December 12

   www.aol.com/nyt-connections-hints-answers-today...

   We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT 'Connections’ hints and answers for #550 on ...

7. Particle size - Wikipedia

   en.wikipedia.org/wiki/Particle_size

   Particle size is a notion introduced for comparing dimensions of solid particles (), liquid particles (), or gaseous particles ().The notion of particle size applies to particles in colloids, in ecology, in granular material (whether airborne or not), and to particles that form a granular material (see also grain size).