Results 131 to 140 of about 201,364 (273)

What can lithics tell us about food production during the transition to farming? Exploring harvesting practices and cultural changes during the neolithic in Southwest Asia: a view from Qminas (north‐western Syria)

Archaeometry, EarlyView.
Abstract This study examines the continuity and change in harvesting practices between the Late Pre‐Pottery Neolithic B (LPPNB) and the Early Pottery Neolithic at Qminas, north‐western Levant, through a traceological analysis of flint sickles. By combining qualitative traceological analysis with quantitative functional approaches, we demonstrate that ...
Fiona Pichon, Osamu Maeda, Juan José Ibáñez Estévez, Patricia Anderson   +3 more
wiley   +1 more source

Current Situation and Prospect of High Value-added Utilization of Coal-fired Fly Ash Resources

Kuangchan zonghe liyong
Coal-burning fly ash is the powdery waste produced after pulverized coal is burned in the boiler of coal-fired power plant. It is one of the largest solid wastes in China.
Yu WU, Ying ZHANG, Xiaokang LI, Zhenhao GUAN   +3 more
doaj   +1 more source

A Study of Physicochemical Properties of Stockpile and Ponded Coal Ash. [PDF]

Materials (Basel), 2022
Šulc R, Šídlová M, Formáček P, Snop R, Škvára F, Polonská A.   +5 more
europepmc   +1 more source

The Effect of Naoh Concentration and Temperature on Zeolite Synthetis From Fly Ash by Hidrothermal Alkali [PDF]

, 2009
Zeolite synthesis from coal fly ash PLTU Tanjung Jati Japara was conducted by hydrothermal alkali. Preparation was done on fly-ash that has been refluxed with 1M of HCl and without refluxed.
Jumaeri, J. (Jumaeri), Kunarti, E. S. (Eko), Santosa, S. J. (Sri), Sutarno, S. (Sutarno)   +3 more
core  

Coal ash resources and potential for rare earth element production in the United States

International Journal of Coal Science & Technology
The renewable energy industry is heavily reliant on rare earth elements, underscoring the need to develop resources and production. The objective of this work was to estimate coal ash resources and potential for extraction of rare earth elements using ...
Robert C. Reedy, Bridget R. Scanlon, Davin A. Bagdonas, James C. Hower, Dennis James, J. Richard Kyle, Kristine Uhlman   +6 more
doaj   +1 more source

Thermodynamic Irreversibility Analysis of Thermal Radiation in Coal-Fired Furnace: Effect of Coal Ash Deposits. [PDF]

Materials (Basel), 2023
Zhang C, Zhang Z, Lou C.
europepmc   +1 more source

Modelling the Contribution of 40K, 232Th and 226Ra to Radiation Dose and Risk from Airborne Discharges of Coal-Fired Power Plants [PDF]

, 2014
Coal contains trace elements and naturally occurring radionuclides such as 40K, 232Th, 238U. When coal is burned, minerals, including most of the radionuclides, do not burn and concentrate in the ash several times in comparison with their content in ...
Carvalho, J. M. Valerio de, Dinis, M. L., Fiúza, António, Góis, Joaquim, Meira Castro, Ana C.   +4 more
core  

‘This Is Not Europe’: Investigating the Commission's Anti‐Populist Articulation of ‘European Values’

JCMS: Journal of Common Market Studies, EarlyView.
Abstract Whilst ‘populism’ is often considered antithetical to ‘European values’, how this contrast shapes the very meaning of such ‘values’ remains underexplored. This article investigates the European Commission's anti‐populist articulation of ‘European values’, which constructs ‘populism’ as their constitutive outside.
Alex Yates
wiley   +1 more source

Enrichment Characteristics of Hazardous Trace Elements in Feed Coal and Coal Ash in Huaibei Area under Leaching. [PDF]

Toxics, 2023
Wang D, Lu J, Wu J, Li B, Nyasha NK.
europepmc   +1 more source

The path of trace elements in a combustion process: from feed coal to ash products [PDF]

, 2011
Coal is an important component in enabling the worlds energy demands to be met. This is largely due to the fact that coal is a relatively inexpensive fuel when compared to the other options such as oil, gas and nuclear.
Mohammed, Raushaan
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