Results 31 to 40 of about 951,152 (213)

Chemical Composition and Toxicity of PM10 and PM0.1 Samples near Open-Pit Mines and Coal Power Stations

open access: yesLife, 2022
Particulate matter (PM)
Aleksey Larionov   +8 more
doaj   +1 more source

Experimental and simulation study on the effect of sulfur content on spontaneous combustion charcateristics of coal

open access: yesMeikuang Anquan
To explore the influence of sulfur content on the spontaneous combustion characteristics of coal and find efficient ways to prevent and control the spontaneous combustion disaster of high sulfur coal, the oxidation processes of typical high sulfur coal ...
Junjian LIU, Yibo TANG, Honggang LIU
doaj   +1 more source

Influence of Sorbent Characteristics on Fouling and Deposition in Circulating Fluid Bed Boilers Firing High Sulfur Indian Lignite

open access: yesJournal of Combustion, 2013
125 MWe circulating fluidized bed combustion (CFBC) boiler experienced severe fouling in backpass of the boiler leading to obstruction of gas flow passage, while using high sulfur lignite with sorbent, calcium carbonate, to capture sulfur dioxide ...
Selvakumaran Palaniswamy   +5 more
doaj   +1 more source

Research on cross interference and evaluation method of coal mine gas detection equipment

open access: yesGong-kuang zidonghua, 2023
At present, coal mine underground gas detection equipment often causes false alarms or fails to alarm due to cross interference. There are potential safety hazards.
CHEN Yongran
doaj   +1 more source

IRON ORE ALLOCATION MODEL TO FEEDSTOCK CONCENTRATE PLANTS FROM MULTIPLE SOURCES TO MULTIPLE DESTINATIONS CONSIDERING THE UNCERTAINTY OF GRADE, IN IRON ORE MINES: A CASE STUDY IN SANGAN MINE, IRAN

open access: yesRudarsko-geološko-naftni Zbornik
Operations research is a science that is used in various fields. This science is a set of quantitative techniques that help managers make decisions using scientific methods. This science is related to many axial decision-making issues of managers.
Iman Eskandari Nezhad   +2 more
doaj   +1 more source

Fluid inclusions and sulfur stable isotopes of the Sarab 3 iron ore deposit (the Shahrak mining area - north Bijar)

open access: yesJournal of Economic Geology, 2021
Introduction Cenozoic magmatism in Central Iran has caused formation of contact metmorphed rocks especially skarns (Calagari and Hosseinzadeh, 2006, Karimzadeh Somarain and Moayyed, 2002). The skarns consist of valuable ore deposits.
Mohammad Maanijou   +1 more
doaj   +1 more source

Assessment of the Stabilization of Mercury Contaminated Soil Using Starfish

open access: yesAgriculture, 2022
Approximately 50% of the 2600 decommissioned mines in South Korea are implicated in toxic metal/metalloid releases. One of the problems experienced in orchards situated near abandoned mines is the transport of heavy metals including mercury (Hg) into the
Deok Hyun Moon   +2 more
doaj   +1 more source

Physical, Chemical, and Microbiological Characterization of Kettara Mine Tailings, Morocco

open access: yesSoil Systems, 2022
The mining industry is of major importance to Morocco’s economy. However, the abandoned pyritic mines are a source of potentially toxic elements that can cause the disruption of the surrounding ecosystems, constituting a huge threat to wellbeing and ...
Leila Benidire   +4 more
doaj   +1 more source

Mines monthly October 2023

open access: yes, 2023
Also called Mines monthly: Colorado School of Mines alumni ...

core  

Changing fate of large industrial investments during the Gomułka Period (1956–1970)

open access: yesStudia Historiae Oeconomicae
The Gomułka period of fourteen years includes one of the investment cycles characteristic of the centrally managed economy in Poland. After an initial, short period of stabilization of outlays, in the years 1959–1969 they were significantly increased ...
Janusz Kaliński
doaj   +1 more source

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