Results 11 to 20 of about 119,977 (170)

Analysis of Support Design in Weak Rock Drift Using a Systematic Approach

Advances in Civil Engineering, 2020
The aim of this study is to develop a systematic approach for support design of weak rock drift based on empirical, analytical, and numerical method, which is employed to estimate weak rock support demand and design support system.
Xingdong Zhao, Shujing Zhang, Huaibin Li, Guoju Chen, Pengqiang Zhang   +4 more
doaj   +1 more source

Exposure to cobalt in the production of cobalt and cobalt compounds and its effect on the heart [PDF]

Occupational and Environmental Medicine, 2004
Aims:To investigate whether exposure to cobalt in cobalt plants has any measurable effect on the cardiovascular system.Methods:Occupational, cross sectional study, using a self administered questionnaire, blood pressure measurement, electrocardiography, and laboratory tests in which 203 male workers with at least one year of exposure to cobalt and 94 ...
A, Linna, P, Oksa, K, Groundstroem, M, Halkosaari, P, Palmroos, S, Huikko, J, Uitti   +6 more
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Key Technology Research on the Efficient Exploitation and Comprehensive Utilization of Resources in the Deep Jinchuan Nickel Deposit

Engineering, 2017
To understand the resource features and geology in the deep Jinchuan nickel deposit, difficult geological conditions were systematically analyzed, including high stress, fragmentized ore rock, prevalent deformation, difficult tunnel support, complicated ...
Zhiqiang Yang
doaj   +1 more source

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

PASSIVITY OF COBALT. [PDF]

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

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

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

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

J. Chem. Soc., Trans., 1910
n ...
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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