Results 71 to 80 of about 141,345 (280)

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

SOME ASPECTS OF GEORADIO LOCATION IN MINERAL RESOURCES SURVEYING ENERGY [PDF]

open access: yes, 2018
Study the possibility of developing the technical and technological justification of georadio location of minerals according the quantity and quality characteristics of the concrete ...
YANKIN, Dmytro
core  

Fluid dynamics based modelling of the Falcon concentrator for ultrafine particle beneficiation [PDF]

open access: yes, 2009
Enhanced gravity separators are widely used in minerals beneficiation, as their superior gravity field enables them to separate particles within narrow classes of density and size.
Bourgeois, Florent   +2 more
core   +3 more sources

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

open access: yesAdvanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng   +14 more
wiley   +1 more source

Multi-Scale Feature Analysis Method for Soil Heavy Metal Based on Two-Dimensional Empirical Mode Decomposition: An Example of Arsenic

open access: yesApplied Sciences
The spatial distribution of soil heavy metals was influenced by both natural and anthropogenic factors, and the multi-scale characteristics of heavy metals played a key role in analyzing their influencing factors.
Maowei Yang   +8 more
doaj   +1 more source

Organic Geochemical Characteristics of the Shale from Y1 Well in Chengkou Area of Northeastern Chongqing and Exploration Prospects

open access: yesYankuang ceshi, 2018
A study has been conducted based on the drilling data and geochemical data from the Y1 Well in Chengkou of Northeastern Chongqing, including total organic carbon (TOC), kerogen microcomponent, equivalent vitrinite reflectance (Ro) and carbon isotope ...
HE Ting-peng   +5 more
doaj   +1 more source

A study to examine the feasibility of using surface penetrators for mineral exploration [PDF]

open access: yes
The feasibility of using penetrators in earth applications is examined. Penetrator applications in exploration for mineral resources only is summarized. Instrumentation for future penetrators is described.
Anderson, D. W., Davis, A. S.
core   +1 more source

Sixth annual conference on alaskan placer mining [PDF]

open access: yes, 1984
An abridged format of papers, presentations and addresses given during the 1984 conference held on March 28-29, 1984, compiled and edited by Daniel E. Walsh and M.
Walsh, D.E., Wray, Susan
core  

Adaptive Genetic Algorithm for Crystal Structure Prediction [PDF]

open access: yes, 2013
We present a genetic algorithm (GA) for structural search that combines the speed of structure exploration by classical potentials with the accuracy of density functional theory (DFT) calculations in an adaptive and iterative way. This strategy increases
Ho, K. M.   +8 more
core   +2 more sources

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

open access: yesAdvanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco   +7 more
wiley   +1 more source

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