Results 101 to 110 of about 1,406,898 (336)
Advances and Outlook of Nickel‐Based MOFs–LDHs Materials for Energy Conversion
Advanced Sustainable Systems, EarlyView.In this graphical abstract, we present the pivotal gap between the activity and stability parameters as far as intergrated Ni‐based MOF/LDF electrocatalysts are concerned. For large scale application, these two parameters should be optimized and furthermore balanced in order to promote sustainable electrocatalytic hydrogen production.
Lincoln Einstein Kengne Fotso +4 more
wiley +1 more source
The effect of hard coal density on its flotation performance [PDF]
Acta Montanistica Slovaca, 2005 Hard coal flotation depends on many factors, one of which is the density of the grains floated. The heavier the grain, the greater the gravitational force that counteracts the force of adhesion between the grain and an air bubble, and the lower the ...
Ewa Małysa
doaj
Preliminary Study of Calorific Value Increase on Lignite Coal Using Dialkyl Carbohydrate Biosurfactant [PDF]
Journal of Pure and Applied Chemistry Research, 2020 Indonesian coal consumption is dominated by a low-grade coal quality, and supplied from local coals mining which was composed of lignite. A technological breakthrough has to be main objective to convert low grade coal into upper-class coal.
Mahreni Mahreni, Mitha Puspitasari
doaj
Advanced Sustainable Systems, EarlyView.Bisphenol‐A polycarbonate is upcycled via a simple one‐pot reaction into an aromatic Mannich polyol, which serves as a precursor for fabricating poly(urethane‐isocyanurate) (PUR‐PIR) aerogels. PUR‐PIR aerogels, prepared with different isocyanate indices, exhibit high porosities, high specific surface areas, ultralow thermal conductivity, and excellent ...
Ivona Glišić +5 more
wiley +1 more source
Grindability of Coal – the new approach [PDF]
Acta Montanistica Slovaca, 2005 The method of evaluation of grindability of hard coal and its blend is shown. The standard Hardgrove test is used as a base to work out this method. The essence of this method consists in the simulation of the milling process in a close circuit (mill ...
Barbara Tora
doaj
Energies, 2015 Understanding and modeling of coal and biomass pyrolysis assume particular importance being the first step occurring in both gasification and combustion processes.
Paolo De Filippis +3 more
doaj +1 more source
Revegetation Research on Coal Mine Overburden Materials in Interior to Southcentral Alaska [PDF]
, 1987 This report was reprinted from Focus on Alaska's Coal '86: Proceedings of the Conference MIRL Report Number 72. The pagination in the original publication has been retained.
Mitchell, Wm. W.
core
Advanced Theory and Simulations, EarlyView.This work presents a framework combining the Self‐Consistent Electrostatic Potential Algorithm (SCERPA) and Density‐Functional Theory calculations to efficiently evaluate the electronic properties of molecular ensembles. The approach achieves ab initio‐comparable precision while significantly reducing computation time and provides the first DFT ...
Yuri Ardesi +4 more
wiley +1 more source
L'armement charbonnier Marcesche (1898-1939) [PDF]
Codrul Cosminului, 2012 In France, Lorient, city located in Brittany, is representative of the medium-sized ports. But how to explain the creation of an industrial and coal shipyard group in the last years of the 19th century in the port of Lorient?
Pascal Boisson
doaj
Experimental Study on Sensitivity of Porosity to Pressure and Particle Size in Loose Coal Media
Energies, 2018 A new experimental method for characterizing the porosity of loose media subjected to overburden pressure is proposed based on the functional relationships between porosity, true density, and bulk density.
Chenghao Zhang +7 more
doaj +1 more source