Results 141 to 150 of about 290,425 (314)

The chemical composition of mineral trioxide aggregate

open access: yesJournal of Conservative Dentistry, 2008
Mineral trioxide aggregate (MTA) is composed of Portland cement, with 4:1 addition of bismuth oxide added so that the material can be detected on a radiograph. The cement is made up of calcium, silicon and aluminium. The main constituent phases are tricalcium and dicalcium silicate and tricalcium aluminate. There are two commercial forms of MTA, namely
openaire   +3 more sources

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Clay mineral composition of sediment core PS69/300-1

open access: yes, 2011
Clay mineral composition of sediment core PS69/300-
Ehrmann, Werner   +11 more
core   +1 more source

Interface‐Engineered Binary Framework Composites: Advancing Porous Materials for Precision Medicine

open access: yesAdvanced Materials Interfaces, EarlyView.
Binary framework composites integrate two complementary porous architectures into a unified platform, enabling multifunctional design, enhanced structural tunability, and improved physicochemical performance. By combining high surface area, ordered porosity, interfacial synergy, and versatile functionalization, these hybrid materials offer new ...
Navid Rabiee   +3 more
wiley   +1 more source

The composition and assaying of minerals [PDF]

open access: yesJournal of Chemical Education, 1953
JOHN STEWART-REMINGTON, WILFRID FRANCIS
openaire   +2 more sources

Clay mineral composition of sediment core PS69/275-1

open access: yes, 2011
Clay mineral composition of sediment core PS69/275-
Ehrmann, Werner   +11 more
core   +1 more source

Xenes for Sustainable Energy: A Roadmap From First‐Principles Design to Practical Deployment

open access: yesAdvanced Materials Interfaces, EarlyView.
Emerging 2D Xenes are advancing from theoretical predictions toward practical energy‐storage and conversion technologies through the integration of first‐principles modelling, experimental synthesis, electrochemical validation, and AI‐assisted materials design, enabling accelerated discovery of high‐performance and sustainable electrochemical systems ...
Onur Karaman, Ceren Karaman
wiley   +1 more source

Mineral composition of ores and mineral structure of Aynak copper deposit (Afghanistan)

open access: yesRUDN Journal of Engineering Research, 2014
The article studies the chemical deposits (mineralogy) and structure of the ores of Aynak ore deposits. This article have a results of macroscoping and microscoping reaserche after drilling of china company (MCC, 2010) and drilling of Russian geologist ...
F H Reza-e
doaj  

Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient

open access: yesGeophysical Research Letters
Mineral preservation and microbial residue production are vital for the accumulation of mineral‐associated organic carbon (MAOC) in soils. However, their relative importance and interactive effects remain unclear.
Erxiong Zhu   +8 more
doaj   +1 more source

Marine Metallic Mineral Resources of the Pacific Basin

open access: yes
In the 1970s and 1980s, the ocean became a focus of attention for mineral producers and consumers. This paper surveys that trend with particular emphasis on several specific metals and types of resource deposit.
Clark, Allen L., Clark, Jennifer Cook
core  

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