Results 11 to 20 of about 6,480 (152)

A preliminary study on wire sawing and its comparison with the traditional drill and blast method [PDF]

open access: yes, 2021
The traditional drill and blast method has been the most common excavation method for excavating underground spaces. It is an effective method in terms of costs and productivity. However, in certain situations, blasting cannot always be used. For example,
Alatalo, Juho
core   +3 more sources

Analysing the life index of diamond cutting tools for marble building stones based on laboratory and field investigations [PDF]

open access: yes, 2021
Cutting tool wear constitutes one of the principal parameters in the processing cost of building stone. The life index of the cutting tool is obtained by evaluating the wear of diamond segments in the processing plants and examining the main parameters ...
Bahr, Maziyar   +4 more
core   +1 more source

Ornamental Stone Cutting Processing and Sludge Production Evaluation with the Goal of Ending Waste [PDF]

open access: yes, 2021
In the quarry sector, the reduction of landfill material may be obtained not only by finding a suitable recovery of the material as a by-product, but also by identifying the best available cutting technique to be used on the basis of the physical ...
Bellopede, Rossana   +2 more
core   +1 more source

Risk Assessment in Quarries using Failure Modes and Effects Analysis Method (Case study: West-Azerbaijan Mines) [PDF]

open access: yes, 2022
Iran is one of the countries with the largest number of quarry mines in the world. Diamond cutting wire is usually used in quarries to cut dimension stone cubes, which is accompanied by hazardous events.
Abbasi Azghan, Roozbeh   +7 more
core   +1 more source

The Effect of Variable Na/K on the CO2 Content of Slab‐Derived Rhyolitic Melts

open access: yesGeophysical Monograph Series, Page 195-208., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Michelle Muth   +2 more
wiley  

+1 more source

Environmental alternatives for stone slurry circularity: from waste to resource [PDF]

open access: yes, 2023
LAUREA MAGISTRALEL'uso storico dei prodotti in pietra naturale nell'edilizia risale a tempi antichi e continua a svolgere un ruolo cruciale nelle moderne infrastrutture urbane e nella costruzione di edifici alti.
CHEN, ZHAOFENG
core  

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

open access: yesAdvanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

Electricity from photovoltaic solar cells: Flat-Plate Solar Array Project final Report. Volume III: Silicon sheet: wafers and ribbons [PDF]

open access: yes, 1986
The Flat-Plate Solar Array (FSA) Project, funded by the U.S. Government and managed by the Jet Propulsion Laboratory, was formed in 1975 to develop the module/array technology needed to attain widespread terrestrial use of photovoltaics by 1985.
Briglio, A.   +3 more
core  

Universal In Situ Isotope Exchange Raman Spectroscopy (IERS) Methodology for Measuring Oxygen Surface Exchange Dynamics Using a Probe Layer

open access: yesAdvanced Functional Materials, EarlyView.
A bespoke multilayer thin film configuration has been designed, which overcomes the material dependency of conventional isotope exchange Raman spectroscopy (IERS). This universal IERS methodology is efficient, non‐destructive and provides additional structural information and time resolution, which can be further extended to various isotopic elements ...
Zonghao Shen   +7 more
wiley   +1 more source

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

open access: yesAdvanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo   +10 more
wiley   +1 more source

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