Results 61 to 70 of about 10,064,357 (239)
Leaching kinetics of gold mine tailings: the removal of manganese and iron by sodium carbonate [PDF]
E3S Web of Conferences, 2019 South Africa is a mineral-rich country with numerous metals and minerals such as gold, copper, and platinum group metals which are exploited to a significant extent.
Mashifana Tebogo, Sithole Nastassia
doaj +1 more source
Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks
Advanced Science, EarlyView.Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley +1 more source
PGM MINERALS FROM PLACER OF THE MURZINKA-ADUI GRANITE GNEISSIC COMPLEX AND THEIR POSSIBLE SOURCES [PDF]
Минералогия, 2015 The paper presents the results of study of PGM minerals found in a small placer of the MurzinkaAdui granite gneissic block, Central Urals. We studied 65 PGM grains 0.1–0.8 mm in size including 42, 21, and 2 grains of the Os-Ir-Ru (±Pt, Rh) and Pt-Fe (±Ir,
V.V. Murzin, A.Yu. Kissin, D.A. Varlamov
doaj
Advanced Science, EarlyView.This article aims to elucidate the biological mechanisms of bone repair and the evolution of material design, highlighting key cellular and molecular processes. It further proposes strategies and prospects for programmable bio‐interactive materials, which enable precisely guided bone tissue regeneration by dynamically regulating cell behavior and the ...
Qingrui Fan +6 more
wiley +1 more source
FIRST DISCOVERY OF PLATINUM GROUP MINERALS IN COSTA RICA [PDF]
, 2009 We report on the presence of Platinum group minerals (PGM) discovered, for the first time, in Costa Rica. The PGM were found in small chromitite bodies of the Santa Elena ophiolite.Se informa por primera vez la presencia de minerales de platino en la ...
Campos Bejarano, Lolita
core
Retrospective Grid Cells in the Medial Entorhinal Cortex Encode Past Paths During Spatial Navigation
Advanced Science, EarlyView.Retrospective grid cells are identified in the medial entorhinal cortex, with spatial firing patterns that become most grid‐like when activity is projected onto recently traversed locations. Their coding loses spatial precision in darkness and is disrupted during assisted movement, indicating that entorhinal representations incorporate recent path ...
Ruojin Liu +10 more
wiley +1 more source
Platinum group minerals from the Broken Hill District, New South Wales
, 1998 Small deposits containing high platinum and palladium grades occur to the east of Broken Hill, New South Wales. Gossan samples have been examined from Mulga Springs, Little Darling Creek and Round Hill (Moorkaie Hill) to identify any platinum group ...
Gray ND +4 more
core +3 more sources
Bioenergetic Materials for Tissue Regeneration: Modulating Metabolism to Promote Cellular Anabolism
Advanced Science, EarlyView.Bioenergetic materials (BEMs) modulate cellular metabolism to promote tissue regeneration. Their principal mechanisms of action include metabolic substrate supplementation, metabolic enzyme modulation, organelle transfer, electrical current regulation, redox homeostasis modulation, and oxygen tension modulation.
Yuchen He +7 more
wiley +1 more source
Platinum-group element mineralisation in the Unst ophiolite, Shetland [PDF]
, 1984 The ophiolitic basic and ultrabasic rocks of the island of Unst, Shetland comprise a sequence of harzburgites, dunites, clinopyroxene-rich cumulates, and gabbro, within tectonic blocks that have been thrust over a migmatite complex during the Laxer ...
Leake, R.C., Gunn, A.G., Styles, M.T.
core +3 more sources
Supplemental Material: The origin of platinum group minerals in oceanic crust
, 2023 <p>Methods and petrographic description.</p>
et al., Katy Evans
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