scholarly journals Adaptation to life in aeolian sand: how the sandfish lizard,Scincus scincus, prevents sand particles from entering its lungs

2016 ◽  
Vol 219 (22) ◽  
pp. 3597-3604 ◽  
Author(s):  
Anna T. Stadler ◽  
Boštjan Vihar ◽  
Mathias Günther ◽  
Michaela Huemer ◽  
Martin Riedl ◽  
...  
Keyword(s):  
Aeolian Sand ◽  
Sand Particles ◽  
Scincus Scincus

Wind tunnel investigation of horizontal and vertical sand fluxes of ascending and descending sand particles in aeolian sand transport

2016 ◽  
Vol 41 (12) ◽  
pp. 1647-1657 ◽  
Author(s):  
Liqiang Kang ◽  
Xueyong Zou ◽  
Guodan Zhao ◽  
Chunlai Zhang ◽  
Hong Cheng
Keyword(s):  
Wind Tunnel ◽  
Sand Transport ◽  
Aeolian Sand ◽  
Aeolian Sand Transport ◽  
Sand Particles

Chemical Classification and Particle Sizing of Foundry Sands

1985 ◽  
Vol 43 ◽  
pp. 388-389
Author(s):  
D.S. DeMiglio
Keyword(s):  
Image Analysis ◽  
Energy Dispersive Spectrometer ◽  
Image Analysis System ◽  
Representative Sampling ◽  
Foundry Sands ◽  
Large Atomic Number ◽  
Backscattered Electron ◽  
Sand Particles ◽  
Analysis System ◽  
Reclamation System

Much progress has been made in recent years towards the development of closed-loop foundry sand reclamation systems. However, virtually all work to date has determined the effectiveness of these systems to remove surface clay and metal oxide scales by a qualitative inspection of a representative sampling of sand particles. In this investigation, particles from a series of foundry sands were sized and chemically classified by a Lemont image analysis system (which was interfaced with an SEM and an X-ray energy dispersive spectrometer) in order to statistically document the effectiveness of a reclamation system developed by The Pangborn Company - a subsidiary of SOHIO.The following samples were submitted: unreclaimed sand; calcined sand; calcined & mechanically scrubbed sand and unused sand. Prior to analysis, each sample was sprinkled onto a carbon mount and coated with an evaporated film of carbon. A backscattered electron photomicrograph of a field of scale-covered particles is shown in Figure 1. Due to a large atomic number difference between sand particles and the carbon mount, the backscattered electron signal was used for image analysis since it had a uniform contrast over the shape of each particle.

scholarly journals Superhydrophobic Sands for the Preservation and Purification of Water

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 151
Author(s):  
Yuyang Liu ◽  
Chang-Hwan Choi
Keyword(s):  
Water Surface ◽  
Particulate Material ◽  
Self Assembled Monolayer ◽  
Hydrophobic Coatings ◽  
Hydrophobic Coating ◽  
Evaporation Loss ◽  
Zno Nanocrystals ◽  
Sand Particles ◽  
Purification Of Water ◽  
Nanoscale Roughness

Sand, a cheap and naturally abundant particulate material, was modified with photocatalytic and hydrophobic coatings to reduce evaporation loss and facilitate the purification of water. The first-level photocatalytic coatings (TiO2 or ZnO nanocrystals) rendered nanoscale roughness on the surface of the sand. The additional second-level hydrophobic coating of a self-assembled monolayer of octyltrimethoxysilane (OTS) made the sand particles superhydrophobic because of the nanoscale roughness imposed by the nanocrystals. The superhydrophobic sand particles, floating on the free surface of water due to their superhydrophobicity, significantly reduced the evaporation loss of water by 60%–90% in comparison to an uncovered water surface. When the outer hydrophobic coatings are weathered or disengaged, the inner photocatalytic coatings become exposed to water. Then, the sand particles act as photocatalysts to degrade the contaminants in water under solar radiation.

Application of sand particles modified with NH2-MIL-101(Fe) as an efficient visible-light photocatalyst for Cr(VI) reduction

Chemosphere ◽  
2021 ◽  
Vol 268 ◽  
pp. 129365
Author(s):  
Sadra Sadeghian ◽  
Hossein Pourfakhar ◽  
Majid Baghdadi ◽  
Behnoush Aminzadeh
Keyword(s):  
Visible Light ◽  
Visible Light Photocatalyst ◽  
Sand Particles

Experimental study on laminated glass responses of high-speed trains subject to windblown sand particles loading

2021 ◽  
Vol 300 ◽  
pp. 124332
Author(s):  
Gongxun Deng ◽  
Wen Ma ◽  
Yong Peng ◽  
Shiming Wang ◽  
Song Yao ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Speed ◽  
Laminated Glass ◽  
Windblown Sand ◽  
High Speed Trains ◽  
Sand Particles
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