Results 81 to 90 of about 267,019 (291)

Pliocene Te Aute limestones, New Zealand: Expanding concepts for cool-water shelf carbonates [PDF]

open access: yes, 2003
Acceptance of a spectrum of warm- through cold-water shallow-marine carbonate facies has become of fundamental importance for correctly interpreting the origin and significance of all ancient platform limestones.
Nelson, Campbell S.   +11 more
core   +1 more source

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

THERMODYNAMIC MODELING OF CHEMICAL REACTIONS OF STRONTIUM CARBONATE IN ALUMINIUM MELT

open access: yesЛитьë и металлургия, 2012
The received calculation data confirm the assumption on possibility of carrying out of silumins modifying processing with strontium carbonate in production conditions.
N. V. Sletova   +4 more
doaj  

Predicting time-dependent scale-induced permeability reduction in water flooding: Kinetic modeling and inhibitor effectiveness under reservoir conditions

open access: yesWater Resources and Industry
Water flooding is a key enhanced oil recovery technique for boosting oil production from depleted reservoirs. However, mixing incompatible fluids leads to mineral scale formation.
Shahab Hosseini   +5 more
doaj   +1 more source

A cold strontium Rydberg gas [PDF]

open access: yes, 2011
Cold gases of Rydberg atoms are an ideal system in which to study the novel effects of strong interatomic interactions. This thesis describes the design and construction of the world's first experiment to study Rydberg states in a cold gas of an alkaline
MILLEN, JAMES
core  

Defect‐Driven Charge Separation in Ba‐Doped SrTiO3: Correlating Photoelectrochemical Performance With Dye‐Selective Photocatalysis

open access: yesAdvanced Materials Interfaces, EarlyView.
Ba‐doped SrTiO3 perovskites establish a direct correlation between photoelectrochemical activity and photocatalytic performance. Optimized Ba0.5Sr0.5TiO3 exhibits enhanced charge separation, photocurrent generation, and visible‐light‐driven dye degradation through defect‐induced oxygen vacancies and lattice distortion.
Sagar A. Nikam   +6 more
wiley   +1 more source

Advanced MXene‐Based Multifunctional Nanoarchitecture Materials Engineered for Adsorptive Cleanup of Hazardous Radioactive Pollutants: A Comprehensive Critical Review

open access: yesAdvanced Materials Interfaces, EarlyView.
This work critically reviews MXenes as highly effective multifunctional nanomaterials for the adsorption of radio‐contaminants, demonstrating a remarkable adsorption capacity of up to 1376.75 mg/g and cyclic stability of 2–8 cycles, with complexation, electrostatic interactions, and the numerical strength of MXene active sites playing a key operational
Stephen Sunday Emmanuel   +1 more
wiley   +1 more source

Insights into High Temperature Sorbents for Carbon Dioxide

open access: yesChemical Engineering Transactions, 2015
This article reports on an experimental research dealing with the use of solid sorbents for CO2 uptake from gaseous stream at high temperature. Hydroxyl-apatite and strontium carbonate have been adopted as starting materials for preparing a regenerable ...
F. Miccio, F. Doghieri, E. Landi
doaj   +1 more source

Excited state spatial distributions in a cold strontium gas [PDF]

open access: yes, 2012
This thesis describes the development of a new technique for measuring the spatial distribution of Rydberg atoms in a cold strontium gas. Strontium atoms are cooled and trapped in a magneto-optical trap and coherently excited to Rydberg states in a two ...
LOCHEAD, GRAHAM
core  

Advanced Manufacturing of Composite‐Based Systems for Energy Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced manufacturing enables the integration of polymers, ceramics, metal oxides, and composites into architected microstructures with tailored transport pathways. By coupling material selection, manufacturing strategy, and structural design, multifunctional energy systems can simultaneously improve electrochemical performance, thermal management ...
Sri Vaishnavi Thummalapalli   +13 more
wiley   +1 more source

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