Results 81 to 90 of about 235,115 (280)

Spin dynamics of electrons and holes in InGaAs/GaAs quantum wells at milliKelvin temperatures

, 2010
The carrier spin dynamics in a n-doped (In,Ga)As/GaAs quantum well has been studied by time-resolved Faraday rotation and ellipticity techniques in the temperature range down to 430 milliKelvin.
A. D. Wieck, A. Greilich, D. R. Yakovlev, D. Reuter, E. L. Ivchenko, I. A. Akimov, I. A. Yugova, L. V. Fokina, M. Bayer, M. M. Glazov, R. I. Dzhioev   +10 more
core   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

Research on the Efficient Desilication Process of Low-Grade Bauxite in Guangxi

Crystals
With the continuous exploitation of bauxite mineral resources, Guangxi bauxite faces many difficulties in alumina production due to its characteristics of high silicon content, high iron content, and a low Al-Si ratio.
Guoxian Hu, Anmin Li, An Xia, Dongjie Zhang, Liwen Pan, Xiaolian Zhao, Xingzhi Pang   +6 more
doaj   +1 more source

An Assessment of Reuse of Light Ash from Bayer Process Fluidized Bed Boilers in Geopolymer Synthesis at Ambient Temperature

Advances in Materials Science and Engineering, 2018
Sustainable civil construction in the future, besides having low energy consumption and greenhouse gas emissions, must also adopt the principle of reusing wastes generated in the production chain that impact the environment. The aluminum production chain
Woshington S. Brito, André L. Mileo Ferraioli Silva, Rozineide A. A. Boca Santa, Kristoff Svensson, José Antônio da Silva Souza, Herbert Pöllmann, Humberto Gracher Riella   +6 more
doaj   +1 more source

Digestion of Alumina from Non-Magnetic Material Obtained from Magnetic Separation of Reduced Iron-Rich Diasporic Bauxite with Sodium Salts

Metals, 2016
Recovery of iron from iron-rich diasporic bauxite ore via reductive roasting followed by magnetic separation has been explored recently. However, the efficiency of alumina extraction in the non-magnetic materials is absent. In this paper, a further study
Guanghui Li, Jun Luo, Tao Jiang, Zhuoxuan Li, Zhiwei Peng, Yuanbo Zhang   +5 more
doaj   +1 more source

Mind the (approximation) gap: a robustness analysis [PDF]

This note continues the discussion of the results reported by Ricardo Caballero and Eduardo Engel (1993), hereafter CE, and Ricardo Caballero, Eduardo Engel, and John Haltiwanger (1997), hereafter CEH, by responding to the results reported in Christian ...
Jonathan L. Willis, Russell Cooper
core  

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

Advanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang, Zhenbin Wang, Mirjana Dimitrievska, Miloš Baljozović, Yongping Gan, Pardis Adams, Sanghyun Bae, Thomas Moehl, Wenzhe Niu, Xiang jiu Guan, S. David Tilley   +10 more
wiley   +1 more source

Dual‐Ligand Metal‐Organic Frameworks via In Situ Amidoxime Engineering for Selective Ion Separation

Advanced Functional Materials, EarlyView.
Inspired by microbial ion‐trapping mechanisms, a mild and universal strategy is developed to construct highly porous amidoxime‐functionalized MOFs. DFT calculations and molecular force measurements reveal that the dual‐ligand amidoxime configuration significantly strengthens Ga(III) affinity.
Zhifang Lv, Guixia Fan, Yun Bai, Guosheng Li, Peng Li, Wenjihao Hu, Yijun Cao, Wenshuai Yang, Daoguang Teng, Hongbo Zeng   +9 more
wiley   +1 more source

Influence of notillage on carbon sequestration and erosion in Brazil [PDF]

, 2004
Les sols constituent le plus gros réservoir superficiel de C (hors les roches carbonatées), environ 1500 Gt C, ce qui équivaut à presque trois fois la quantité stockée dans la biomasse terrestre, et deux fois celle de l'atmosphère.
Bernoux, Martial, Blavet, Didier, Cerri, Carlos Clemente, Cerri, Carlos Eduardo P., Metay, Aurélie, Perrin, Anne-Sophie, Piccolo, Marisa de Cassia, Scopel, Eric, Siqueira Neto, Marcos   +8 more
core  

Vertical Merger Enforcement Actions: 1994–April 2020 [PDF]

, 2020
We have revised our earlier listing of vertical merger enforcement actions by the Department of Justice and Federal Trade Commission since 1994. This revised listing includes 66 vertical matters beginning in 1994 through April 2020.
Culley, Daniel P., Salop, Steven C.
core   +1 more source