Results 111 to 120 of about 43,826 (248)

Research on Debris Characteristics and Wear Mechanism of Gear Material 18CrNiMo7-6 Used in Mining Reducer Under Dust-Contaminated Lubrication

Lubricants
The lubrication of mining reducer is subjected to the contamination of coal rock dust, and this contamination has extremely serious influence on the wear life of reducers.
Xinyu Pang, Yixiang He, Xun Chen, Jiapeng Zhao, Xiting Luo, Kaibo Lv   +5 more
doaj   +1 more source

Дослідження сегрегації для розробки техногенних покладів з метою вдосконалення якості продукції [PDF]

, 2018
Виявлено теоретичне підґрунтя ефекту сегрегації при складуванні відходів збагачення з урахуванням високоякісного опису різних фракцій, проведені розрахунки щодо визначення основних параметрів технологічного процесу складування та подальшої ...
Kustov, V., Pchelkin, G., Strilets, O., Кустов, В. В., Пчелкин, Г. Д., Пчелкин, Георгий Дмитриевич, Пчолкін, Г. Д., Пчолкін, Георгій Дмитрович, Стрелец, А. П., Стрелец, Александр Петрович, Стрілець, О. П., Стрілець, Олександр Петрович   +11 more
core  

The Application of Hydrochar Composite Briquettes for Sustainable Slag Foaming in the Electric Arc Furnace Process

steel research international, EarlyView.
Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu, Andrey Karasev, Björn Glaser, Chuan Wang   +3 more
wiley   +1 more source

Dust removal efficiency of high pressure atomization in underground coal mine

International Journal of Mining Science and Technology, 2018
To master theoretical calculation for dust removal efficiency of high pressure atomization in an underground coal mine, the corresponding atomization characteristics and dust removal efficiency were both comprehensively studied in theory by virtue of ...
Pengfei Wang, Xuanhao Tan, Weimin Cheng, Gang Guo, Ronghua Liu   +4 more
doaj   +1 more source

Babcock and Wilcox's experience with two-phase flow mixtures of coal and gas [PDF]

The performance of pulverized coal injection systems in operation on blast furnaces is described in terms of application to coal gasification, fluidized bed combustion, and ...
Bolumen, A. G.
core   +1 more source

Variation on Toxic and Inflammatory Potential of Coal Smoke of Different Sources From a Region With High Lung Cancer Risk

Environmental Toxicology, EarlyView.
ABSTRACT Excess lung cancer risk in Xuanwei and Fuyuan, China, has been attributed to household air pollution from use of a locally sourced smoky (bituminous) coal. However, the carcinogenic mechanisms remain unclear. Given the important role of inflammation in lung cancer development, this study compared the proinflammatory potentials of the ...
Yongliang Zhang, Wei Hu, Nathanial Rothman, Dingyu Liu, Jihua Li, Jun Xu, Bofu Ning, Roel Vermeulen, Qing Lan, Flemming R. Cassee, George S. Downward   +10 more
wiley   +1 more source

Identification of force chains in wet coal dust layer and the effect of porosity on three-body contact stiffness

Scientific Reports
Aiming at the three-body contact problem of mechanical rough surface containing wet coal dust interface, the three-body contact model of rough surface containing wet coal dust interface is constructed by comprehensively considering the contact ...
Xinwei Yang, Dongxuan Wu, Yangxi Bai, Hongyue Chen, Xin Wang   +4 more
doaj   +1 more source

Prediction of heterogeneous nucleation condensation effect on the surface of respiratory coal dust and test of dust reduction test

Meitan xuebao
Surface wettability of coal dust particles is an important factor restricting the efficiency of wet dust removal. Heterogeneous nucleation condensation on the surface of coal dust particles is a means without any pollution, without considering the ...
Hanyi LIN, Liang YUAN, Bingyou JIANG, Yuqian ZHANG, Yifan WANG, Haoyu WANG   +5 more
doaj   +1 more source

A reappraisal of the Middle to Later Stone Age prehistory of Morocco Réévaluer la préhistoire du Maroc, du Middle Stone Age au Later Stone Age

Journal of the Royal Anthropological Institute, EarlyView.
Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton, Abdeljalil Bouzouggar, Stacy Carolin, Louise Humphrey   +3 more
wiley   +1 more source

In utero ultrafine particulate matter exposure causes offspring pulmonary immunosuppression. [PDF]

, 2019
Early life exposure to fine particulate matter (PM) in air is associated with infant respiratory disease and childhood asthma, but limited epidemiological data exist concerning the impacts of ultrafine particles (UFPs) on the etiology of childhood ...
Chang, Richard C-A, Golding, Michael C, Johnson, Natalie M, Langley, Rebecca, Lau, Carmen, Leal, Jeann, Li, Yixin, Molina, Mario J, Myatt, Louise G, Pulczinski, Jairus, Raju, Muppala, Rodrigues-Hoffmann, Aline, Rychlik, Kristal A, Secrest, Jeremiah R, Zamora, Misti L, Zhang, Renyi   +15 more
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