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Laboratory Studies on Air Permeability
Published in L.G. Wilson, Lorne G. Everett, Stephen J. Cullen, Handbook of Vadose Zone Characterization & Monitoring, 2018
David S. Springer, Stephen J. Cullen, Lome G. Everett
A particle size analysis is a measurement of the size distribution of individual particles comprising a test material. Particle size analysis data can be presented and used in several ways, perhaps the most common of which is a particle size distribution curve. Particle size distribution is determined by passing a disaggregated sample through a series of sieves. The cumulative weight of particles caught on each sieve of an established particle size is typically plotted as a percent of the total sample weight against the logarithm of particle diameter. The resultant plot of data points establishes a particle size distribution curve, where average grain size and degree of sorting are indicated.
Particulate Matter: Subvisible
Published in Sandeep Nema, John D. Ludwig, Parenteral Medications, 2019
Operating in a wide size range, these high-performance instruments are most useful for dispersed systems and evaluation of bulk powders. In laser diffraction particle size analysis, a representative “ensemble” of particles passes through a beam of laser light which scatters the incident light onto a Fourier lens that focuses the light onto a detector array. With specific algorithm, particle size distribution is inferred from the collected diffracted light data.
Mechanical and microstructural properties of recycled reactive powder concrete containing waste glass powder and fly ash at standard curing
Published in Cogent Engineering, 2018
Belachew Asteray Demiss, Walter Odhiambo Oyawa, Stanley Muse Shitote
In this study, the physical properties of finely dispersed local wastes such as specific gravity, color and particle size distribution (for sand, silt and clay content) were investigated. Particle size distribution was done using laser diffraction (LA950) in World Agroforestry center (ICRAF) Nairobi office. Laser diffraction particle size analysis is a rapid low cost technology for measuring particle sizes using light diffraction patterns. It relies on the fact that particles passing through a laser beam will scatter light at an angle that is directly related to their size.
Characterization and experimental investigation of rheological behavior of oxide nanolubricants
Published in Particulate Science and Technology, 2021
Harsh Gupta, Santosh Kumar Rai, Piyush Kuchhal, Gagan Anand
Dynamic light scattering (DLS) technique is used for particle size analysis. The coated particles are dispersed in transparent liquid, water in our case. The prepared fluid is taken in a UV Fused Quartz Cuvettes and placed inside the chamber. The intensity changes are analyzed with a digital auto correlator which generates a correlation function. This curve can be analyzed to give the size and the size distribution. (Sharma, Anand, and Singla 2018).