Results 61 to 70 of about 364,250 (225)

PbS colloidal quantum dots imagers: From single devices to arrays, flexible platforms, and CMOS‐integrated systems

open access: yesFlexMat, EarlyView.
Abstract Imagers operating in the visible to near‐infrared (NIR) range play an important role in applications such as industrial sorting, security surveillance, and autonomous driving. However, conventional imaging technologies based on silicon and III–V semiconductors suffer from several limits, including restricted spectral range, high fabrication ...
Xin Hong   +4 more
wiley   +1 more source

Desulphurization of coals of different ranks in the presence of slimes by reverse flotation

open access: yesEnergy Reports, 2019
In this paper, the flotation separation of pyrite from sub-bituminous and meta-bituminous coals in the presence of slimes was investigated. The sub-bituminous coal and the meta-bituminous coal have significant differences in their surface properties ...
You Zhou   +5 more
doaj   +1 more source

Application of Circular Economy Principles to Power Generation: Extending the Life of A Hydropower Plant by Pumped Hydro Energy Storage

open access: yesSustainable Development, EarlyView.
ABSTRACT The application of circular economy, which aims to maximize efficiency and reduce waste, to renewable energy sources necessitates, given the intermittent nature of the latter, robust energy storage solutions to ensure grid stability and avoid wasting energy.
Ó. Martín‐Llorente   +4 more
wiley   +1 more source

Effect of Structure of Alkanes Collector with Same Carbon Number on Flotation Performance

open access: yesKuangchan zonghe liyong
[Objective & Methods] To study the effect of collectors with different molecular structures on the flotation of oxidized coal, n-dodecane, isododecane and cyclododecane, which have the same number of carbon atoms but different structures, were selected ...
Weiwei XIE   +3 more
doaj   +1 more source

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

open access: yessteel 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   +3 more
wiley   +1 more source

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

open access: yessteel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen   +5 more
wiley   +1 more source

Re-flotation of black coal slurries from settling pit of František Mine, OKD, Inc. [PDF]

open access: yesActa Montanistica Slovaca, 1998
The possibility of re-flotation of black-coal slurries from slurry ponds of Mine František, OKD, a.s was tested and is presented in the paper. Two types of collectors, namely Montanol and Flotacol NX, and bioflocculants such as been yeast were used and ...
Feèko Peter, Drobík Martin
doaj  

Crystal‐Facet‐Engineered BiOBr(1 1 0)/MXene Sponge–Hydrogel Evaporators for Synergistic Solar Desalination and Non‐Mineralizing Volatile Organic Compound Conversion

open access: yesSusMat, EarlyView.
A crystal‐facet‐engineered BiOBr(1 1 0)/MXene composite is integrated into a sponge‐hydrogel evaporator to enable synergistic solar desalination and selective, non‐mineralizing conversion of volatile organic compounds (VOCs). The dual‐phase structure achieves a high evaporation rate of 2.42 kg m−2 h−1 under one‐sun illumination, sustained salt ...
Hongliang Li   +6 more
wiley   +1 more source

Research of Optimize Performance of Coal Flotation Collectors

open access: yes, 2011
There are lots of problems in coal flotation reagents. For example, it was difficult to disperse in coal pulp, it needs a large consumption, and its selectivity was poor.
Deng Gao Ji   +4 more
core   +1 more source

Alternative Contract Design: Analysing the Bankability of Fungible Derivative Contracts in Energy‐Only Markets

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT With the retirement of 21GW of legacy coal fleet looming, the task to replace Australia's thermal capacity with alternative firmed renewable ‘bulk energy’ solutions is non‐trivial. Indeed, calibrating necessary capital investment in new plant stock with efficient economic outcomes, vis‐à‐vis cost and reliability, represents a fundamental ...
Nicholas Gohdes   +2 more
wiley   +1 more source

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