Results 41 to 50 of about 727,744 (288)

Risk-Based Methodology for Determining Priority Directions for Improving Occupational Safety in the Mining Industry of the Arctic Zone

open access: yesResources, 2021
Over the past 10 years, the mining industry of Russia has seen a greater than three-fold decrease in injury rates, thanks to the successful implementation of innovative labor safety technologies.
Semyon Gendler, Elizaveta Prokhorova
doaj   +1 more source

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

open access: yesAdvanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden   +11 more
wiley   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken   +6 more
wiley   +1 more source

Planning for development in a mineral-based economy [PDF]

open access: yes, 1980
Draft copy of a paper presented at the 23rd Annual Meeting of the African Studies Association "Charge and Contrasts: New Directions and Traditional Ties in Africa" Philadephia, October 15-18, 1980.A deeply structured dualism typically characterizes third
Seidman, Ann
core  

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

open access: yesAdvanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian   +10 more
wiley   +1 more source

Copper mineral occurrences in the Wrangell Mountains-Prince William Sound area, Alaska [PDF]

open access: yes, 1971
On January 9, 1970, the U.S. Bureau of Mines entered into an agreement with the University of Alaska based upon a proposal submitted by the Mineral Industry Research Laboratory.
Grybeck, D.G., Heiner, L.E., Wolff, E.N.
core  

Rapid Design and Manufacture of Ultralight Cellular Materials [PDF]

open access: yes, 2005
This paper details the design, manufacture and testing of regular metallic lattice structures with unit cell sizes in the range 0.8mm to 5mm and truss elements of 100-500 µm in diameter [1].
Brooks, W.   +4 more
core   +1 more source

Artificial Intelligence as the Next Visionary in Liquid Crystal Research

open access: yesAdvanced Functional Materials, EarlyView.
The functions of AI in the research laboratory are becoming increasingly sophisticated, allowing the entire process of hypothesis formulation, material design, synthesis, experimental design, and reiterative testing to be automated. In our work, we conceive how the incorporation of AI in the laboratory environment will transform the role and ...
Mert O. Astam   +2 more
wiley   +1 more source

Guardianes del río. Reflexiones sobre lo que hacemos y aprendemos al lado del agua

open access: yesRevista +E, 2017
“Guardianes del río” nace como un Proyecto de Extensión de Interés Social de la Universidad Nacional del Litoral (UNL, Santa Fe, Argentina), con el objeto de integrar a los alumnos y exalumnos de la Escuela Media O.
Patricia Mines, Ricardo Giavedoni
doaj   +1 more source

Sustainable Rehabilitation of Surface Coal Mining Areas: The Case of Greek Lignite Mines

open access: yesEnergies, 2020
Surface lignite mines of the Balkan Peninsula face growing pressure due to the CO2 emissions reduction initiatives, rapidly increasing renewable-power capacity, and cheap natural gas.
Francis Pavloudakis   +3 more
doaj   +1 more source

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