Results 11 to 20 of about 1,021,442 (304)

Partially-observed models for classifying minerals on Mars [PDF]

open access: yes, 2013
The identification of phyllosilicates by NASA's CRISM (Compact Reconnaissance Imaging Spectrometer for Mars) strongly suggests the presence of water-related geological processes.
Dundar, Murat, Li, Lin, Rajwa, Bartek
core   +1 more source

Conflict Minerals Legislation: The SEC’s New Role as Diplomatic and Humanitarian Watchdog [PDF]

open access: yes, 2012
Buried in the voluminous Dodd-Frank Wall Street Reform and Consumer Protection Act is an oft-overlooked provision requiring corporate disclosure of the use of “conflict minerals” in products manufactured by issuing corporations. This Article scrutinizes
Woody, Karen E.
core   +2 more sources

A Systematic Review on the Implication of Minerals in the Onset, Severity and Treatment of Periodontal Disease [PDF]

open access: yes, 2016
Periodontal disease is an inflammatory disease with high prevalence in adults that leads to destruction of the teeth-supporting tissues. Periodontal therapy has been traditionally directed at reduction of the bacterial load to a level that encourages ...
Battino, Maurizio   +4 more
core   +5 more sources

Risk assessment and allocation in the contract for public works used in Saudi Arabia construction industry

open access: yesCogent Engineering, 2018
This article aims to propose a new model to assess the Saudi public contract for risk sharing through the investigation of the perceptions and proposals of owners and contractors in Saudi Arabia on the statement of the clauses of the contract.
Khaled Ashmawi   +4 more
doaj   +1 more source

Trial calculation of relating the equilibrium state of minerals to the descriptive mineralogy [PDF]

open access: yes, 1997
Statistical calculation have been carried out on the volumes of the asymmetric unit of minerals. This treatment is related to the origin of the symmetry and periodicity of the crystals, and to the equilibrium conditions of these crystals.
Kawahara, Akira
core   +1 more source

Structural Modification of KAISiO4 Minerals [PDF]

open access: yes, 1997
Kalsilite, a polymorph of KAISiO4 is an end member of nepheline-kalsilite series and the mineral was syn-thesized by hydorhermal methods. The synthetic kalsilite is hexagonal, P63, with a=5.151(5), c=8.690(8) A.
Okamoto, Yasuhiko
core   +1 more source

Towards sensor array materials: can failure be delayed?

open access: yesScience and Technology of Advanced Materials, 2015
Further to prior development in enhancing structural health using smart materials, an innovative class of materials characterized by the ability to feel senses like humans, i.e. ‘nervous materials’, is discussed.
Samir Mekid   +3 more
doaj   +1 more source

Evaluating the application of the Optima® classifier as a secondary beneficiation stage at the Phola Coal Processing Plant [PDF]

open access: yesMATEC Web of Conferences
South Africa's coal mining operations frequently produce fine coal which is usually discarded due to the high costs of handling. Studies have shown that these fines possess acceptable market calorific values and low ash content.
Malekutu Karabo   +5 more
doaj   +1 more source

Hydrated Double Carbonates - A Raman and Infrared Spectroscopic Study [PDF]

open access: yes, 2007
The Raman spectra of selected double carbonates including pirssonite, gaylussite, shortite and quintinite complemented with infrared spectra have been used to characterise the structure of these carbonate minerals.
Dickfos, Marilla, Frost, Raymond
core   +2 more sources

Avalanche effect for chemically modified dust mitigation from surfaces

open access: yesScientific Reports, 2021
Cost effective dust mitigation from surfaces is one of the challenges in various sectors. The reduction of dust adhesion on surfaces plays a vital role for dust mitigation from surfaces under the gravitational influence.
Johnny Ebaika Adukwu   +9 more
doaj   +1 more source

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