Results 41 to 50 of about 229,806 (251)

3D imaging of clay minerals inside sandstone: pushing the spatial resolution limits using ptychographic tomography [PDF]

open access: yes, 2015
Characterization of microporous, clay-sized particles in natural stone is essential for the understanding of their dynamics. These processes are importand in the fields of oil and gas, groundwater, building stone weathering and soil science. Methods such
Boone, Matthieu   +11 more
core  

Histological aspects of the “fixed-particle” model of stone formation: animal studies [PDF]

open access: yesUrolithiasis, 2016
Crystallization by itself is not harmful as long as the crystals are not retained in the kidneys and are allowed to pass freely down the renal tubules to be excreted in the urine. A number of theories have been proposed, and studies performed, to determine the mechanisms involved in crystal retention within the kidneys.
openaire   +2 more sources

Predicting Loss of Ambulation in Limb Girdle Muscular Dystrophy R9

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Limb girdle muscular dystrophy type R9 (LGMDR9) results from biallelic variants in FKRP. There is limited data to predict loss of ambulation (LOA) among those with LGMDR9. Methods Participants in an ongoing dystroglycanopathy natural history study (NCT00313677) with FKRP variants who had achieved ambulation and were more than 3 ...
Chandra L. Miller   +6 more
wiley   +1 more source

Stone-Cutting Industries Wastewater Recycling and Reuse by Using Hydrocyclone, an Economical Approach for Reducing Water Consumption [PDF]

open access: yesآب و فاضلاب, 2020
Some problems exist regarding this industry such as high water consumption, wastewater treatment and recycling. In this study, stone-cutting industry recycling and reuse by using hydrocyclone in different operational conditions have been investigated ...
Afshin Naderi   +2 more
doaj   +1 more source

Elution Technology of Tubular Vortex Enhanced Diesel-Contaminated Maifan Stone Particles

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
Abstract In view of the difficulty in repairing petroleum-contaminated soil, a tubular vortex elution device is designed based on previous research findings in this paper. Using the experimental method, the diesel-contaminated maifan stone was taken as the research object, the process of tubular vortex technology to repair the soil was ...
Kunyu Geng   +3 more
openaire   +1 more source

Exposure to particles and respiratory symptoms in stone carvers of Kerman, Iran [PDF]

open access: yesJournal of Occupational Health and Epidemiology, 2013
Received: April 2014, Accepted: November 2014 Background: Exposure to respirable particulate matter containing silica in the working environment can lead to respiratory diseases and other health hazards. The current study was designed to estimate the prevalence of lung diseases and their determining factors in the stone carvers of Kerman, Iran ...
A Ashrafi-Asgarabad   +3 more
openaire   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

open access: yesAdvanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser   +4 more
wiley   +1 more source

Ultra-Dispersed Ash Filler for Dispersed Binding Systems

open access: yesChemical Engineering Transactions, 2021
The paper shows studies of dispersed systems based on cement binder and dispersed aluminosilicate filler. Such dispersed filler in research is modified waste - ash from a thermal power plant from the Moscow region.
Victoria Petropavlovskaya   +4 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

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