Results 81 to 90 of about 941,056 (284)
Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas
Deep Underground Science and Engineering, EarlyView.This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou +9 more
wiley +1 more source
Indonesian Journal of Chemistry, 2017 Heavy metals in the samples of coals and combustion residues (bottom ash and fly ash) from Pacitan coal-fired power plant (CPP) have been identified by using NAA, XRF, and ICP-OES methods.
Agus Taftazani +3 more
doaj +1 more source
Pengaruh Penambahan Fly Ash Dan Bottom Ash Terhadap Mutu Paving [PDF]
, 2017 Fly ash dan bottom ash merupakan limbah padat dihasilkan sisa pembakaran batubara pada pembangkit listrik tenaga uap atau proses industri lainnya. Limbah padat ini terdapat dalam jumlah yang relatif besar, sehingga memerlukan pengelolaan yang serius agar
Mulyono, Tedjo +2 more
core
Deep Underground Science and Engineering, EarlyView.This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu +4 more
wiley +1 more source
REMOVAL OF IRON IMPURITIES FROM FLY AND BOTTOM ASH BY NEODYMIUM MAGNET
RMUTL Engineering Journal, 2018 In this research, fly and bottom ash samples from Mae Moh power plant, Lampang, Thailand were reported by XRF. The %Fe element in samples was nearly 10%. The neodymium permanent magnet was used to remove iron impurities in wet process. The results showed
Kritshna Pangluang +4 more
doaj +1 more source
EcoEnergy, EarlyView.This study presents a novel 3‐reactor chemical looping system for CO2 capture and subsequent utilization with biomass and natural gas for producing liquid fuels. Using Ca2Fe2O5\Fe2O3 oxygen carriers, it achieves 60% CO2 capture efficiency, ∼80% syngas purity, and autothermal operation, offering a scalable, carbon‐negative route to sustainable fuels ...
Krutarth Pandit +6 more
wiley +1 more source
Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism
Geophysical Monograph Series, Page 247-262., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival +3 more
wiley +10 more sources
The compressive strength of fly ash concrete and its mineralogy [PDF]
, 1994 Includes bibliographical references.The use of fly ash as a cement extender in portland cement concrete is well established. Strict requirements are set for the fly ash on its physical properties and chemical composition to ensme its successful ...
Gogol, Volker R
core +1 more source
Effects of the addition of oil shale ash and coal ash on physic-chemical properties of CPJ45 cement
MATEC Web of Conferences, 2014 We focused our research on recycling industrial wastes, fly ash (F.A), bottom ash (B.A) and oil shale ash (S.A) in cement production. The study concerns physico-chemical characterization of these products and the influence of their addition on the ...
Nabih K., Kada M.K., Hmiri M., Hamsi N.
doaj +1 more source
Euromaidan and Ukrainian Subjective Well‐Being
European Journal of Social Psychology, EarlyView.ABSTRACT The 2013–2014 Euromaidan in Ukraine was the largest series of pro‐European protests in history. Peaceful civilian protests were met with state violence, resulting in widespread civil unrest, over 100 deaths, and nearly 2000 injuries. The Russo‐Ukrainian War broke out shortly after. We examined the immediate and long‐term changes in Ukrainians’
Aidan Campbell +9 more
wiley +1 more source