Results 31 to 40 of about 456,880 (295)

Functionalization of Fe₃O₄/SiO₂ with N-(2-Aminoethyl)-3-aminopropyl for Sorption of [AuCl₄]^-

Indonesian Journal of Chemistry, 2016
Synthesis of Fe3O4/SiO2 modified with N-(2-aminoethyl)-3-aminopropyl group (Fe3O4/SiO2/ED) via coating method and its application for adsorption-desorption of anionic gold in aqueous solution have been conducted. The synthesized product was characterized
Nuryono Nuryono, Mighfar Syukur, Agus Kuncaka, Satya Candra Wibawa Sakti   +3 more
doaj   +1 more source

Geology and mineralization of the Duobaoshan supergiant porphyry Cu-Au-Mo-Ag deposit (2.36 Mt) in Heilongjiang Province, China: A review

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, Nan Ju, Guo-bin Zhang, Yuan-dong Zhao, Yun-sheng Ren, Bao-shan Liu, Hui Wang, Rong-rong Guo, Qun Yang, Zhen-ming Sun, Feng-ming Xu, Ke-yong Wang, Yu-jie Hao   +12 more
doaj   +1 more source

Synthesis and Characterization of Charge Transfer Salts Based on [M(dcdmp)2] (M = Au, Cu and Ni) with TTF Type Donors

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, Isabel C. Santos, Sandra Rabaça, Elsa B. Lopes, Vasco Gama, Manuel Almeida, Dulce Belo   +6 more
doaj   +1 more source

Characterization and Structural Insights of the Reaction Products by Direct Leaching of the Noble Metals Au, Pd and Cu with N,N′-Dimethyl-piperazine-2,3-dithione/I₂ Mixtures

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, Luca Pilia, Davide Balestri, Luciano Marchiò, Paola Deplano   +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, FENG-LAN SHAO, JUN SONG, Landau L. D., Liu L.-S., Xie Q.-B., YUN-FEI WANG   +6 more
core   +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, Carraro, Giorgio, Maccato, Chiara, Peddis, Davide, Varvaro, Gaspare   +4 more
core   +1 more source

Studies and Considerations on Forty-Three Gold and Silver Nose Ornaments from the Moche Tomb of the Lady of Cao

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, Roberto Cesareo, Angel Bustamante, Arabel Fernandez, Régulo Franco, Soraia Azeredo, Ricardo T. Lopes   +6 more
doaj   +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, A. Kusenko, Alexander Kusenko, C. Jarlskog, C. Jarlskog, F. Muheim, G. Altarelli, G. Altarelli, G. Giudice, H. Arason, H. Arason, H. Arason, H. Georgi, H. Haber, H. Nilles, J. Gasser, K. Hikasa, K. Hikasa, K. Inoue, L. Rolandi, M. Dine, O. Tarasov, P. Ramond, R. Barbieri, R. K. Ellis, R. Shrock, Robert Shrock, S. Bethke, S. Dimopoulos, S. Dimopoulos, S. Gorishnii, T. Appelquist, V. Barger, V. Barger   +33 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, A. Z. Zaitsev, A. Z. Zaitsev, C. Kittel, D. Garrett, G. Bergmann, G. Deutscher, G. Lueders, G. Tateishi, J. J. Hauser, L. P. Gorkov, L. P. Gorkov, M. Zhang, S. Y. Hsu   +13 more
core   +1 more source

Asymptotic analysis for the generalized langevin equation [PDF]

, 2010
Various qualitative properties of solutions to the generalized Langevin equation (GLE) in a periodic or a confining potential are studied in this paper. We consider a class of quasi-Markovian GLEs, similar to the model that was introduced in \cite{EPR99}.
Ariel G, Dym H, G A Pavliotis, Givon D, Hairer M, Helffer B, Landim C, M Ottobre, Markowich P A, Mattingly J C, Meyn S P, Nelson E, Nualart D, Ottobre M Pavliotis G A Pravda-Starov K, Pavliotis G A, Reed M, Snook I, Villani C   +17 more
core   +1 more source