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Showing 1 to 20 of 138 for “"Small particles"”.
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Sintering of small particles
An atomistic approach to modeling the sintering of nanocrystalline alloys has been developed. It has been shown that there exist alloys that exhibit both nanostructured stability and undergo an accelerated sintering process [1], [2]. However, the widespread adoption of such alloys has been limited …
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Boundary layer transport of small particles
The transport of small particles across the aerodynamic boundary layer that developed over a smooth, flat, acrylic plate and their subsequent deposition was investigated. The velocity boundary layer over the flat plate was characterized for a wind tunnel mainstream velocity of 2 m/s. Particle …
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On the Motion of Small Particles in a Turbulent Fluid Field
Made available in DSpace on 2014-12-09T17:13:42Z (GMT). No. of bitstreams: 1 6801855.pdf: 4393154 bytes, checksum: 7a52d369d96802d7139c852c0408d206 (MD5) Previous issue date: 1967
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Separation of small particles due to density differences in a CFB riser system
… cleanup, and do not effectively recover fine particles. A circulating fluidized bed riser system was developed as an exploratory system for dry separation by density that will eliminate many problems associated with wet separation. The system sends an air-solid mixture through a vertical …
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Coagulation between fractal aggregates and small particles and fractal properties of marine particles
… between fractal aggregates (200-1000 μm) and small (1.48 μm) particles were studied for collisions induced by differential sedimentation and turbulent fluid shear. The collision frequency functions (beta) between these aggregates and small particles were found to be lower than predicted by a …
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Bridging the Modeling-Sampling Gap for Mid-Infrared Reflectance Spectroscopy of Small Particles, Films, and Fibers
… differences seen between optical properties of particles calculated using the specular-reflection method versus those calculated using traditional aerosol methods are addressed herein given these data. A simple multilayer method for estimating particle absorption coefficients is demonstrated …
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Observations from working with a simple mathematical model of light absorption by small particles in the ocean
… by a layer of water containing suspended particles. The model takes chlorophyll a absorption data, cell diameter, intracellular and bulk concentrations of chlorophyll a, pure water absorption data, and thickness of water layer as inputs, and outputs the attenuation by absorption of light …
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An Experimental Study of the Motion of Small Particles in a Turbulent Fluid Field Using Digital Techniques for Statistical Data Processing
Made available in DSpace on 2014-12-09T19:52:19Z (GMT). No. of bitstreams: 1 6612356.pdf: 5801491 bytes, checksum: 9e530c38c118bb6586bb5dc77b5e22ab (MD5) Previous issue date: 1966
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A Model for the Chloroplast: A Study of the Photochemical and Spectral Properties of Pheophytin A Adsorbed to the Surface of Small Particles
… vivo has the pigment adsorbed to the surface of small particles. Pheophytin was used in these studies because chlorophyll was sometimes degraded by the particle surface. A method was developed to study quantitatively the photosensitized reduction of an azo dye in the highly scattering particle …
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An experimental study of the effect of small particles on the fluid turbulence in fully developed flow of air in a horizontal pipe
… velocity between 17 and 24 m/s. The glass particles were able to respond to the most energetic turbulent disturbances in the fluid.
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Nuclear Magnetic Resonance Study of the Bonding of Carbon-Monoxide to Palladium and Platinum Surfaces (Nmr)
The ('13)C and ('17)O NMR of CO chemisorbed on small particles of Pd and Pt has been observed. The ('17)O resonance represents the first reported NMR observation of a spin larger than 1/2 adsorbed on a metal surface.
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Capillary Liquid Chromatography Using Micro Size Particles
… efficiency separations can be realized using small particles (~ 1 µm) in liquid chromatography (LC). However, due to the large pressure drop caused by small particles, conventional LC pumping systems cannot satisfy the pressure requirements needed to drive the mobile phase through the column. …
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The Impacts of Particle Size Distribution and Electrode Structuring on NMC Cathode Performance
… are needed. The commercial active material particles used in battery production are not uniform in shape and size distribution. This heterogeneity results in heterogeneous electrode structures, leading to uneven reactions across the battery electrodes. Moreover, mass transport limitations at …
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Embedded Passivated-Electrode Insulator-Based Dielectrophoretic Chromatography
The detection and identification of particles within fluid samples is key in the prevention of the spreading of disease. This has created a growing need for devices able to successfully separate and identify multiple particles for this purpose while operating at a high enough throughput to be …
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Particle Diffusivity in Fully Developed Turbulent Pipe Flow of Dilute Suspensions
… is concerned with the diffusivity of small particles in steady, fully developed, turbulent horizontal pipe flow of dilute air-solid suspension under the influence of gravity and electrostatic forces.
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High Resolution Distributed Sensing Using Exposed-Core Fibres
… applications, with a focus on the detection of small particles. A high-resolution distributed sensing method has been proposed, in which an exposed-core fibre (ECF) is used to detect micro-scaled sized particles. While the ECF has been reported for chemical detection in the past with high …
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Single particle motion of polymeric, colloidal, and biological materials
Small particles and their dynamics are of widespread interest due both to their unique properties and their ubiquity. Here, we investigate several classes of small particles: colloids, polymers, and liposomes. All these particles, due to their size on the order of microns, exhibit significant …
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