Results 261 to 270 of about 1,597,779 (302)
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Effects of particle size on quality characteristics of stone‐milled whole wheat flour
Journal of the Science of Food and Agriculture, 2023AbstractBackgroundWhole wheat flour (WWF) prepared by the direct crushing method preserves all the components of the whole wheat grain. WWF with different particle sizes (180, 150, 125, 106, and 96 μm) was obtained by combining stone milling and particle size sieving technology.
Mengdi Cai +4 more
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Morphology of Urinary Stone Particles Resulting from ESWL Treatment
Journal of Urology, 1986Fragments of urinary stones resulting from extracorporeal shock wave lithotripsy were examined by light and scanning electron microscopy. Calcium oxalate monohydrate and uric acid stone fragments were homogeneous and regular whereas struvite stone fragments were irregular in shape.
S R, Khan, R L, Hackett, B, Finlayson
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Carbonaceous particles on carbonate building stones in a simulated system
Journal of Aerosol Science, 1992Abstract A laboratory simulation system for studying the interaction between carbonaceous particles and carbonate building stones is presented and described. Three types of building stones with the common characteristic of a carbonate matrix were used: 1) Carrara marble, 2) Travertine, 3) Trani stone.
C. Sabbioni, G. Zappia, G. Gobbi
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Urban stone sulphation and oil-fired carbonaceous particles
Science of The Total Environment, 1984Abstract There is evidence that oil-fired carbonaceous particles play an important role in the gypsum formation on urban limestone. The course of the stone decay registered in Venice strongly supports this view. A model simulating the impact of atmospheric factors on this mechanism justifies the unusually high rate of stone damage observed in Venice.
M. del Monte, C. Sabbioni, O. Vittori
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Carbonaceous particles and stone damage in a laboratory exposure system
Journal of Geophysical Research: Atmospheres, 1996The interaction between carbonaceous particles and stones used in historic buildings and monuments was investigated in a laboratory exposure system. Simulation experiments were carried out in a flow chamber where temperature, relative humidity, and SO2 concentration were controlled.
C. Sabbioni, G. Zappia, G. Gobbi
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Discrete Element Particle Modelling of Stone Masonry
2016Circular Particle Models (PM) are a class of discrete elements which has been increasingly used for detailed analysis in rock and concrete structures. There have been few applications to masonry, but the potential of these techniques appears significant, due to their proven ability to simulate fracture processes through random particle assemblies ...
Nuno Monteiro Azevedo +2 more
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Sodium Fluoride Dissolution of Human Calcium Oxalate/Phosphate Stone Particles
Journal of Endourology, 1995The dissolutive effects of sodium fluoride on human calcium stone particles were investigated in an in vitro model. Stone particles composed of 65% calcium oxalate and 35% calcium phosphate dissolved in a dose-dependent fashion with NaF exposure.
R K, Low, S, Ho, M L, Stoller
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Environmental Research
This investigation aims to assess the levels of human exposure to airborne particulate matter (PM) in various locations of a natural stone quarry for the first time based on simultaneous measurements of both PM mass and number concentrations (PMC and PNC).
Teron Nguyen +2 more
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This investigation aims to assess the levels of human exposure to airborne particulate matter (PM) in various locations of a natural stone quarry for the first time based on simultaneous measurements of both PM mass and number concentrations (PMC and PNC).
Teron Nguyen +2 more
exaly +3 more sources
Parameters of Cement Bonded Particle Boards Modified with Stone Wool Fibre
Advanced Materials Research, 2014The contribution deals with possibilities of using waste from the production of stone wool for modification of the existing composition of cement boards . Waste - the fibres from the production of stone wool - was used as an alternative to the standardly used wooden filler (chips, sawdust).
Miroslav Vacula +3 more
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Discrete Element Modeling of the Single-Particle Crushing Test for Ballast Stones
Computers and Geotechnics, 2017Abstract In this paper, a discrete element modeling approach for the single-particle crushing test for irregularly shaped ballast stones is presented. Bonded spherical particles are used to represent test specimens. Parametric studies focusing on particle size, axial strain rate, particle aggregate size and number of bonds are performed.
Ullrich Martin
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