Results 31 to 40 of about 278,464 (312)

Application and Development of Smart Mine in China [PDF]

MATEC Web of Conferences, 2019
The development of coal mining from ancient times to today has experienced the artificial stage, the mechanized mining stage, and the automated mining stage. Now it is developing towards a safer, greener and more efficient unmanned and smart mine.
Xu Ying, Wei Junqiang, Zhou Xiekang, Sun Feng   +3 more
doaj   +1 more source

Fundamental understanding of re-dispersion of cobalt on supported model Fischer-Tropsch catalysts [PDF]

, 2011
The aim of this study was to investigate how the catalytically active material may redisperse during consecutive oxidation-reduction steps (OROR) for a model supported-cobalt catalyst to give insight into the regeneration process of a spent supported ...
Hauman, Magdalena Maria
core   +1 more source

Cobalt-Catalyzed Asymmetric 1,4-Hydroboration of Enones with HBpin

, 2021
Herein, a series of new 8-OIQ cobalt complexes were synthesized and used for cobalt-catalyzed chemo- and enantioselective 1,4-hydroboration of enones with HBpin to access chiral β,β-disubstituted ketones with good to excellent chemo- and ...
Xiang Ren (358465), Xiang Ren, Zhan Lu, Zhan Lu (252825)   +3 more
core   +1 more source

PASSIVITY OF COBALT. [PDF]

Journal of the American Chemical Society, 1919
n ...
Byers, Horace G., Thing, Curtis W.
openaire   +2 more sources

Cobalt-Catalyzed Direct Alkoxylation of Indoles

, 2023
Cobalt(II) salt as a non-noble metal catalyst has been widely used in direct C–H bond functionalization in recent years. In this work, we developed a cobalt-catalyzed C–H cleavage and alkoxylation of indoles with alcohols for the rapid construction of 2 ...
Ping Wei, Ping Wei (154392), Yiwen Zhu, Jun Ying, Xiao-Feng Wu (1617313), Xiao-Feng Wu, Yiwen Zhu (34362), Jun Ying (129597)   +7 more
core   +1 more source

Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species [PDF]

EFSA Journal, 2012
<p>Cobalt(III) is a component of cobalamin. Its essentiality as trace element results from the capacity of certain animal species to synthesise cobalamin by the gastrointestinal microbiota.
EFSA Panel on Additives and Products or Substances used in Animal Feed
doaj   +1 more source

Optimization of the effect and formulation of different coarse aggregates on performance of the paste backfill condensation

工程科学学报, 2020
Hydration and setting time of paste-like backfill slurry in the Gansu Province’s Jinchuan copper and nickel mine is slow, and the degree of segregation of coarse aggregate is high, seriously affecting the quality of cemented paste backfill. In this paper,
Sheng-hua YIN, Jia-ming LIU, Wei CHEN, Long ZOU, Yong-yuan KOU, Xi-wen LI   +5 more
doaj   +1 more source

The Effect of Using Fluid Balance Application on Interdialytic Weight Gain in Stage V Chronic Kidney Disease Patients Undergoing Hemodialysis

Babali Nursing Research, 2023
Chronic Kidney Disease (CKD) grade V is a condition that requires the patient to undergo hemodialysis for the rest of his life. Often hypervolemia occurs between two times of dialysis.
Danny Putri Sulistyaningrum, Maya Cobalt Angio Septianingtyas, Tia Nurhanifah, Naylul Izza   +3 more
doaj   +1 more source

XLIX.—The change of cobaltous into cobaltic nitrite [PDF]

J. Chem. Soc., Trans., 1910
n ...
openaire   +2 more sources

Removal and Recycling of Antimony in a Gold Concentrate

Kuangchan zonghe liyong
In this article, antimony was removed from the gold concentratebythe alkali leaching method, and then the recovery of antimony solution was also studied.
Jinquan GUO, Lairong HE, Hailong XI, Caixia CHEN, Tianfei MA, Quan LI   +5 more
doaj   +1 more source