Results 31 to 40 of about 457,006 (294)
China Geology, 2023 The reserves of the Duobaoshan porphyry Cu-Au-Mo-Ag deposit (also referred to as the Duobaoshan porphyry Cu deposit) ranks first among the copper deposits in China and 33rd among the porphyry copper deposits in the world.
Sen Zhang +12 more
doaj +1 more source
Environment-Behaviour Proceedings Journal, 2022 This work aimed to study the biosorption of metal ions by chitosan beads, conducted at room temperature by adding chitosan beads into a conical flask containing different initial pH. The flask was agitated, and the concentrations of metal ions were determined using inductively coupled plasma-optical emission spectrometry (ICP-OES).
Annestasia Ollat Jampang +2 more
openaire +1 more source
Crystals, 2018 The charge transfer salts α-DT-TTF[Au(dcdmp)2] (1), BET-TTF[Au(dcdmp)2] (2M and 2T), α-DT-TTF[Cu(dcdmp)2] (3), ET[Cu(dcdmp)2] (4), (BET-TTF)2[Cu(dcdmp)2] (5), (ET)2[Ni(dcdmp)2] (6), and α-mtdt[Cu(dcdmp)2] (7) were obtained by electrocrystallization of ...
Rafaela A. L. Silva +6 more
doaj +1 more source
Molecules, 2021 In the context of new efficient and safe leaching agents for noble metals, this paper describes the capability of the Me2pipdt/I2 mixture (where Me2pipdt = N,N′-dimethyl-piperazine-2,3-dithione) in organic solutions to quantitatively dissolve Au, Pd, and
Angela Serpe +4 more
doaj +1 more source
Centrality, system size and energy dependences of charged-particle pseudo-rapidity distribution
, 2009 Utilizing the three-fireball picture within the quark combination model, we study systematically the charged particle pseudorapidity distributions in both Au+Au and Cu+Cu collision systems as a function of collision centrality and energy, $\sqrt{s_{NN}}=$
DE-MING WEI +6 more
core +1 more source
Heritage, 2023 The authors studied forty-three beautiful nose ornaments from the Moche tomb of the Lady of Cao, located in the north of Peru, which has been dated to be around 300–400 d.C.
Giovanni E. Gigante +6 more
doaj +1 more source
Magnetic properties of epsilon iron(III) oxide nanorod arrays functionalized with gold and copper(II) oxide [PDF]
, 2018 A sequential chemical vapor deposition (CVD) - radio frequency (RF)-sputtering approach was adopted to fabricate supported nanocomposites based on the scarcely investigated \u3b5-iron(III) oxide polymorph.
Barreca, Davide +4 more
core +1 more source
Severe discrepancies between experiment and theory in the superconducting proximity effect
, 2006 The superconducting proximity effect is investigated for SN double layers in a regime where the resulting transition temperature T_{c} does not depend on the mean free paths of the films and, within limits, not on the transparency of the interface.
A. Volkov +13 more
core +1 more source
A New Model for Fermion Masses in Supersymmetric Grand Unified Theories [PDF]
, 1993 We present a simple model for fermion mass matrices and quark mixing in the context of supersymmetric grand unified theories and show its agreement with experiment.
A. Bean +33 more
core +1 more source
Geofluids, 2022 The Roc Blanc Pb-Zn-Ag-Au vein deposit is located in the NW of Marrakech, in the Central Jebilet massif. It is spatially related to Bramram-Tabouchennt-Bamega (BTB) granodioritic pluton (ca. 330 Ma) metamorphism aureole.
Amal El Arbaoui +7 more
doaj +1 more source