Results 131 to 140 of about 1,795,114 (414)

All‐Electrical Control of Spin Synapses for Neuromorphic Computing: Bridging Multi‐State Memory with Quantization for Efficient Neural Networks

open access: yesAdvanced Science, EarlyView.
This study develops three all‐electrically controlled, field‐free spintronic synapse devices for neuromorphic computing. The tilted anisotropy device achieves an 11‐state memory with minimal cycle‐to‐cycle variation (2%), enabling high‐accuracy neural network quantization (81.51% in ResNet‐18). These findings position spintronic synapses as a promising
Tzu‐Chuan Hsin   +4 more
wiley   +1 more source

SALES DOCUMENTS IN PURCHASE AND SALE TRANSACTIONS OF STEAM COAL IN POLAND

open access: yesContemporary Economy, 2015
This article describes sales documents in purchase and sale transactions of steam coal in Poland. In relation to introducing the excise tax on steam coal at the beginning in 2012, additional requirements appeared in documents during the sale of goods ...
Anna Galik
doaj  

Unconventional Natural Gas Accumulations in Stacked Deposits: A Discussion of Upper Paleozoic Coal‐Bearing Strata in the East Margin of the Ordos Basin, China

open access: yesActa Geologica Sinica - English Edition, 2019
The Upper Paleozoic (Carboniferous to Permian) succession in the east margin of the Ordos Basin in the North China Craton has a potential to contain significant hydrocarbon resources, though attention have been mainly attracted for its successful ...
Yong Li   +5 more
semanticscholar   +1 more source

Gram‐Scale Preparation of Tri‐Coordinated Single‐Atom Catalysts for CO2 Electrolysis in Large‐Scale Membrane Electrode Assembly

open access: yesAdvanced Science, EarlyView.
A low‐cost and tri‐coordinated SAC (g‐NiN3) is prepared in gram‐scale using metal ionic liquid [Bmim]2[NiCl4] as precursors. The g‐NiN3 achieves an excellent overall performance for eCO2‐to‐CO in a large‐scale MEA reactor. The overall performance in g‐NiN3 is superior to that of commercial Ag nanopowders, and manifests as one of the state‐of‐the‐art ...
Lei Yuan   +7 more
wiley   +1 more source

The Economics of Coal Phaseouts: Auctions as a Novel Policy Instrument for the Energy Transition [PDF]

open access: yesClimate Policy, pp.1-12 (2024)
The combustion of coal, the most polluting form of energy, must be significantly curtailed to limit global average temperature increase to well below 2 degrees C. The effectiveness of carbon pricing is frequently undermined by sub-optimally low prices and rigid market structures.
arxiv   +1 more source

A novel dry coal feeding concept for high-pressure gasifiers [PDF]

open access: yes, 1977
A novel dry coal feeding concept was developed for injecting ground coal into high-pressure gasifiers. Significant power savings are projected because the coal is injected directly with a ram and there is no requirement for pumping large volumes of gas ...
Davis, H. C., Trumbull, H. E.
core   +1 more source

Lignin‐Based Photothermal Materials: Bridging Sustainability and High‐Efficiency Energy Conversion

open access: yesAdvanced Science, EarlyView.
This review provides new perspectives on lignin‐based photothermal materials, emphasizing their molecular structure for efficient energy conversion. It summarizes mechanisms and strategies for improving photothermal efficiency in applications of photothermal actuation, desalination, and biomedical therapies.
Zhiwen Sun   +10 more
wiley   +1 more source

The integrated development system of breakage faces power supply, training and knowledge assessment of staff of coal mines electromechanical services

open access: yesEAI Endorsed Transactions on Energy Web, 2017
The principles of the Internet-technologies use for ensuring operational safety of power supply of breakage faces of coal mines with a problems solution of design, training and employees' knowledge assessment of electromechanical services are considered.
G.I. Parshina, B.N. Feshin, W.A. Lucas
doaj   +1 more source

Quantifying operational lifetimes for coal power plants under the Paris goals

open access: yesNature Communications, 2019
A rapid transition away from unabated coal use is essential to fulfilling the Paris climate goals. However, many countries are actively building and operating coal power plants.
R. Cui   +11 more
semanticscholar   +1 more source

Overcoming Extreme Ammonia Inhibition on Methanogenesis by Artificially Constructing a Synergistically Community with Acidogenic Bacteria and Hydrogenotrophic Archaea

open access: yesAdvanced Science, EarlyView.
This study proposes a two‐step biological strategy to synergistically enhance the three stages of anaerobic digestion, ultimately eliminating the extreme ammonia inhibition and breaking through the inefficiency bottleneck of conventional biotechnology.
Heng Wu   +6 more
wiley   +1 more source

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