Results 81 to 90 of about 622 (263)

Mineralogical and Geochemical Characteristics of Placer and Ore Gold in the Upper Reaches of the Amazar River (Mogochinsky Gold Mining District, Eastern Transbaikalia)

Georesursy
A detailed study of gold from placers and eluvium of the ore zones of the Amazarkan deposit, located in the basin of the three upper tributaries of the Amazar River, was carried out. The placers are not very far from the primary sources.
V. V. Kolpakov, P. A. Nevolko, D. E. Dranishnikova   +2 more
doaj   +1 more source

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

Advanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi, Valerio Levati, Jordi Alcalà, Thomas Günkel, Nicolas Lejeune, Riccardo Girelli, Alejandro V. Silhanek, Valeria Russo, Narcís Mestres, Daniela Petti, Anna Palau, Edoardo Albisetti   +11 more
wiley   +1 more source

Biomimetic Microfractals Based Flexible Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
A leaf‐skeleton‐based microfractal architecture is integrated with guided CuNW networks and biomimetic triboelectric polymer layers, enabling breathable, flexible, and material‐efficient triboelectric nanogenerators. The resulting system combines enhanced charge generation and charge transport, offering potential for next‐generation self‐powered ...
Amit Barua, Mislav Matić, Ana‐Marija Pitner, Rituporn Gogoi, Aman Kumar, Mirko Poljak, Anastasia Koivikko, Vipul Sharma   +7 more
wiley   +1 more source

Development of Multifunctional Hierarchically Restructured Antibacterial Neural Interfacing Electrodes via Plasma‐Enhanced Atomic Layer Deposition of Zinc Oxide Thin Films

Advanced Functional Materials, EarlyView.
ABSTRACT Next‐generation implantable neural‐interfacing devices are increasingly constrained by the coupled demands of electrode miniaturization, electrochemical performance, and implantation infection risk. Femtosecond laser–based hierarchical surface restructuring (HSR) technology has emerged as a scalable, manufacturing‐compatible platform for ...
Henna Khosla, Wesley Seche, Kriti Panchal, Steven J. May, Ekaterina Pomerantseva, Jacob Elmer, Tyler Cooper, Matthew J. Urban, Hailey Y. Maurer, Gregory A. Caputo, Jeffrey Hettinger, Shahram Amini, Gang Feng   +12 more
wiley   +1 more source

Forecasting for new lode-placer gold objects in the southwestern ending of the Kurtushibinsky metallogenic zone, based on the digital relief analysis

Руды и металлы
The article provides conclusions on the history of development of the topography within the Kurtushibinsky metallogenic zone, based on compilation of maps of the vertex and base surfaces of different levels. The areas of erosion and accumulation of loose
Makarov V. A., Babintsev N. A., Losev V. I., Mezhubovsky V. V., Serdyuk S. S., Samorodskaya M. A.   +5 more
doaj   +1 more source

Placer-lode gold relationships in the Nansen placer district, Yukon

, 2016
Compositional studies have been undertaken on gold particles recovered from hypogene ore, eluvial material and placer samples in and around the Klaza property. These data have been correlated with previous descriptions of in situ mineralization to elucidate placer-lode relationships and systematic change in gold compositions between porphyry and ...
Chapman, RJ, Cook, M, Grimshaw, M, Myles, S   +3 more
openaire   +2 more sources

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

THIN AND DISPERSED GOLD PLACER OF THE SEDIMENTARY COVER OF THE NORTHWESTERN BLACK SEA COAST. PROBLEMS AND PROSPECTS

Геологія і корисні копалини Світового океану, 2019
According to foreign studies, significant (including industrial) concentrations of small and thin gold (STG) were found in quaternary sediments of syneclises and avlacogens of the East European platform.
I.E. Lomakin, V.V. Kochelab
doaj   +1 more source

Conformational Switching of Proteins on Material Surfaces Enabled by Peptide‐Oriented Adsorption

Advanced Functional Materials, EarlyView.
Responsive biointerfaces could be achieved using conformationally responsive proteins; however, their interconversion can be lost upon surface adsorption. Herein, we demonstrate that the incorporation a Au binding peptide into calmodulin allows for binding control on Au wherein the protein retains conformational switching. This capability was confirmed
Sakthirupini Ramamurthy, Kyle B. Meerbott, Lorenzo Travaglini, Garima S. Dobhal, Artur Sawicki, Marc R. Knecht, Tiffany R. Walsh, Dominic J. Glover   +7 more
wiley   +1 more source

EXPLORATION AND PRODUCTION OF GOLD PLACERS IN THE ALTAI MINING DISTRICT IN THE LATE 1830S – EARLY 1840S

Вестник Кемеровского государственного университета, 2014
The paper addresses the history of exploration and extraction of gold placer on cabinet lands of the Altai mountain district in the late 1830s – early 1840s.
M. N. Myakishev
doaj