Results 131 to 140 of about 63,696 (298)

Ice sheets as a significant source of highly reactive nanoparticulate iron to the oceans

open access: yes, 2014
The Greenland and Antarctic Ice Sheets cover ~\n10% of global land surface, but are rarely considered as active components of the global iron cycle. The ocean waters around both ice sheets harbour highly productive coastal ecosystems, many of which are ...
Peter J. Statham   +20 more
core   +1 more source

Interfacial Engineering of Cu/ZnX2O4 (X = Ga, Cr, Al) Spinel‐Supported Catalysts for Enhanced CO2 Hydrogenation to Methanol

open access: yesCarbon and Hydrogen, EarlyView.
Engineered Cu‐ZnGa interfaces on spinel supports enhance metal–support interaction and Cu dispersion, suppress reverse water‐gas shift, and achieve high CO2 conversion, methanol selectivity, and operational stability. ABSTRACT Catalytic hydrogenation of carbon dioxide to methanol is a key approach for carbon resource utilization and carbon neutrality ...
Zhaohui Liu   +6 more
wiley   +1 more source

Thermal Weakening, Convergent Flow, and Vertical Heat Transport in the Northeast Greenland Ice Stream Shear Margins

open access: yesGeophysical Research Letters, 2019
Ice streams are bounded by abrupt transitions in speed called shear margins. Some shear margins are fixed by subglacial topography, but others are thought to be self‐organizing, evolving by thermal feedback to ice viscosity and basal drag which govern ...
N. Holschuh   +2 more
doaj   +1 more source

Advancing Upcycling and Regeneration of Spent LiFePO4: Failure Mechanisms and Recovery Strategies

open access: yesCarbon Energy, EarlyView.
This review studies the failure mechanism to promote the upcycling regeneration of spent lithium iron phosphate (S‐LFP). It first summarizes the failure mechanisms of LFP batteries revealed via advanced characterization technologies and then explores the respective advantages and challenges of hydrometallurgy and direct regeneration methods.
Yi Wang   +6 more
wiley   +1 more source

Basal conditions of the onset zone of the Northeast Greenland Ice Stream derived from airborne ultra-wideband radar data

open access: yes, 2020
We assess the basal conditions of the onset region of the Northeast Greenland Ice Stream (NEGIS) in a systematic analysis of airborne ultra-wideband radar data.
Franke, Steven   +4 more
core   +1 more source

Oxidative Fast Pyrolysis Enabling Autothermal Production of Porous Functionalized Biochar and Anhydrosugar/Phenol‐Rich Bio‐Oil From Biomass

open access: yesCarbon Energy, EarlyView.
Oxidative fast pyrolysis of biomass enables autothermal production of value‐added products. ABSTRACT Oxidative fast pyrolysis can potentially overcome the heat‐supply bottleneck of conventional fast pyrolysis by enabling autothermal operation while also tailoring product quality through controlled oxygen addition.
Bin Li   +15 more
wiley   +1 more source

Ubiquitous data stream mining [PDF]

open access: yes, 2004
The dissemination of data stream systems, wireless networks and mobile devices motivates the need for an efficient data analysis tool capable of gaining insights about these continuous data streams.
Zaslavsky, Arkady   +5 more
core  

The Stabilization of High‐Nitrogen Systems: 10 Catenated Nitrogen Chain

open access: yesChemistry – A European Journal, EarlyView.
Improving the understanding of high‐nitrogen materials. ABSTRACT High‐nitrogen materials have attracted intense interest in recent decades due to their unique chemical, physical, and biological properties. Stabilizing high‐nitrogen materials is often challenging as they become more unstable with increasing nitrogen catenation and nitrogen mass ...
Nicholas F. Scherschel   +3 more
wiley   +1 more source

Ice-dammed lateral lake and epishelf lake insights into Holocene dynamics of Marguerite Trough Ice Stream and George VI Ice Shelf, Alexander Island, Antarctic Peninsula

open access: yes, 2017
We present new data regarding the past dynamics of Marguerite Trough Ice Stream, George VI Ice Shelf and valley glaciers from Ablation Point Massif on Alexander Island, Antarctic Peninsula.
John L. Smellie (2843852)
core   +1 more source

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