Results 91 to 100 of about 78,035 (306)

Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition

Chemie Ingenieur Technik, EarlyView.
The ignition and combustion of particle clouds are strongly affected by particle interactions. This study uses spectroscopy to examine effects of particle size, water content, and cloud density. Results show ignition delay rises with larger size and density, whereas combustion duration depends mainly on water and density due to moisture‐driven ...
Matteo Giesen, Daniel Bernhardt, Michael Beckmann   +2 more
wiley   +1 more source

Effect of the additive concentration on the modification of petroleum coke and anode quality

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Calcined petroleum coke is one of the major raw materials for anode manufacturing, which is used as the carbon source in electrolytic cells for primary aluminium production. It constitutes around 65%–70% of the anode recipe. Therefore, the quality of calcined coke has an important impact on anode quality, which affects the cost, energy ...
Sena Ozturk, Duygu Kocaefe, Dipankar Bhattacharyay, Yasar Kocaefe   +3 more
wiley   +1 more source

Increasing ecological safety during underground mining of iron-ore deposits [PDF]

, 2018
Purpose. To create the technology increasing the level of ecological safety of underground mining of iron ores by means of decreasing the number of harmful substances released into the atmosphere. Methodology. Laboratory and industrial research studies
Khomenko, O.Ye, Kononenko, M.M, Myronova, I.G, Sudakov, A.K   +3 more
core  

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

Deep Underground Science and Engineering, EarlyView.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao, Shaodi Zhao, Yan Yin, Zhongbin Wang, Shuai Liu, Shirong Ge   +5 more
wiley   +1 more source

Experimental research on flame propagation characteristics of coal dust combustion

Journal of Measurement Science and Instrumentation, 2021
The presence of coal dust explosions in coal mining are significant safety hazards. This study mainly explores the flame propagation of coal dust combustion so as to provide a theoretical basis for the prevention and control of coal dust explosions.
LIU Yifei, ZHANG Yun, YANG Zhenxin, LIU Xuanshen, CHEN Chengfang, BU Lingtao, XU Sen, CAO Weiguo   +7 more
doaj  

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

Development of methods for preparing fly ash for separation by activation [PDF]

, 2018
Purpose. Isolation of the aluminosilicate fraction from fly ash, study of physical and mechanical properties of binders obtained from TPP wastes. Methods.
Netyaga, O.B., Svietkina, O.Yu., Tarasova, H.V., Нетяга, Ольга Борисовна, Нетяга, Ольга Борисівна, Светкина, Елена Юрьевна, Свєткіна, Олена Юріївна, Тарасова, Анна Владимировна, Тарасова, Ганна Володимирівна   +8 more
core  

Constraining recent lead pollution sources in the North Pacific using ice core stable lead isotopes [PDF]

, 2012
Trends and sources of lead (Pb) aerosol pollution in the North Pacific rim of North America from 1850 to 2001 are investigated using a high-resolution (subannual to annual) ice core record recovered from Eclipse Icefield (3017 masl; St.
Gross, B H, Handley, M J, Kreutz, K, McConnell, J R, Osterberg, Erich, Wake, Cameron P, Yalcin, Kaplan   +6 more
core   +2 more sources

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Sustainable farming with native rocks: the transition without revolution. [PDF]

, 2006
The development process which humanity passed through favored a series of conquests, reflected in the better quality of life and longevity, however, it also provoked upsets and severe transformation in the environment and in the human food security. Such
ALTIERI MA, DISSANAYAKE DB, FONSECA R, FYFE WS, LEONARDOS OH, LEONARDOS OH, LEONARDOS OH, MELFI AJ, Othon H. Leonardos, SHIKI S, SMEDLEY PL, SMITH B, Suzi H. Theodoro, THEODORO SCH, VAN STRAATEN P, William S. Fyfe   +15 more
core   +4 more sources