Results 31 to 40 of about 458,689 (285)

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

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

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

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

System size dependence of elliptic flows in relativistic heavy-ion collisions [PDF]

, 2006
The elliptic flows in both Cu+Cu and Au+Au collisions at the Relativistic Heavy Ion Collider are studied in a multi-phase transport model. For both collisions at same reduced impact parameter and minimum bias collisions, the elliptic flow of partons in ...
Ackermann, Adams, Adler, Appelshauser, Barrette, Bjorken, Che Ming Ko, Chen, Danielewicz, Fries, Fries, Greco, Greco, Hwa, Hwa, Kharzeev, Ko, Kolb, Kolb, Kolb, Kolb, Li, Li, Lie-Wen Chen, Lin, Lin, Lin, Lin, Lin, Lin, Manly, Molnar, Molnar, Ollitrault, Pal, Poskanzer, Reisdorf, Sorge, Sorge, Sorge, Teaney, Voloshin, Wang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zheng   +49 more
core   +2 more sources

Fluid Origin and Evolution of the Roc Blanc Silver Deposit (Jebilet Massif, Variscan Belt, Morocco): Constraints from Geology and Fluid Inclusions

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, Ismaïla N’Diaye, Zaineb Hajjar, Amina Wafik, Abdelhak Boutaleb, Said Ilmen, Abderrahim Essaifi, Mohammed Bouabdellah   +7 more
doaj   +1 more source

Schottky barriers at hexagonal boron nitride/metal interfaces: a first principles study [PDF]

, 2014
The formation of a Schottky barrier at the interface between a metal and hexagonal boron nitride (h-BN) is studied using density functional theory. For metals whose work functions range from 4.2 to 6.0 eV, we find Schottky barrier heights for holes ...
Bokdam, Menno, Brocks, Geert, Katsnelson, Mikhail I., Kelly, Paul J.   +3 more
core   +4 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source