Results 71 to 80 of about 711,547 (302)
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Advanced Functional Materials, EarlyView.For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin +7 more
wiley +1 more source
Native gold of the Priamurskaya Province
Zapiski RMO (Proceedings of the Russian Mineralogical Society), 2019 The paper displays data on typomorphic features of native gold in ore deposits and placers of the Priamurskaya Province (Amur River Region). It was revealed that distribution of the number of placers with a certain gold fineness is the unimodal one with a maximum in the range of 850—925 units.
openaire +2 more sources
Mineral processing analysis in artisanal gold mining, Peru [PDF]
, 2015 Peer ReviewedPostprint (published ...
Alfonso Abella, María Pura +3 more
core +2 more sources
Advanced Functional Materials, EarlyView.Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz +3 more
wiley +1 more source
Auriferous Sulfides from the Chah-Bagh Gold Occurrence, Muteh Mining District [PDF]
Journal of Sciences, Islamic Republic of Iran, 2008 The Chah-Bagh gold occurrence is located in Muteh mining district, in the central part of the Sanandaj-Sirjan zone. Gold mineralization occurs in ductile to ductile-brittle shear zones and is comparable with orogenic gold deposits.
doaj
Gold in the Lousal mine, Iberian Pyrite Belt, Portugal [PDF]
, 2011 Recent exploration boreholes in the Lousal Mine, located within the Portuguese sector of the Iberian Pyrite Belt (IPB) yielded marked concentrations in gold/electrum in a section of core consisting of banded metasediments with massive pyrite ...
Castelo-Branco, José Mário +5 more
core
Growth of Oriented Au Nanostructures: Role of Oxide at the Interface
, 2012 We report on the formation of oriented gold nano structures on Si(100) substrate by annealing procedures in low vacuum (\approx10-2 mbar) and at high temperature (\approx 975^{\circ} C).
Dash, J. K. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song +3 more
wiley +1 more source
Bismuth-silver mineralization in the Sergozerskoe gold occurrence [PDF]
Vestnik MGTU, 2017 Bismuth-silver mineralization attendant to gold mineralization in the Sergozerskoe gold occurrence has been studied in detail. Bi-Ag mineralization is connected with diorite porphyry dykes, which cut volcanic-sedimentary Lopian complexes of the Strel ...
Kalinin A. A. , Savchenko Ye. E.
doaj +1 more source