Results 101 to 110 of about 24,116 (268)

Advancing Sustainable Tourism in Svalbard by Assessing and Prioritizing Sustainable Development Goals (SDGs)

open access: yesSustainable Development, EarlyView.
ABSTRACT Tourism is a significant sector on the Svalbard archipelago. The increase in visitors and tourism activities has reshaped the local community of Longyearbyen, brought new economic opportunities, and put greater pressure on the local environment.
Julien Lebel   +3 more
wiley   +1 more source

The design of a long range megatransport aircraft [PDF]

open access: yes
During the period from August 1991 - June 1992 two design classes at Purdue University participated in the design of a long range, high capacity transport aircraft, dubbed the megatransport.
Allen, Carl L., Weisshaar, Terrence A.
core   +1 more source

Well‐Defined Nanostructures: Concept, Impact and Perspective

open access: yesSmall, EarlyView.
This perspective explores a connectivity‐driven framework for classifying well‐defined nanostructures (WDNSs) beyond traditional dimensionality‐based approaches. By highlighting discrete connections, serial connections, 2.5D connections, and 3D interpenetrations, it examines the structural and functional impacts of WDNSs across catalysis, energy, and ...
Ningxiang Wu   +3 more
wiley   +1 more source

N-methyldiethanolamine (MDEA) as an effective CO2 absorbent for direct air capture (DAC) in cement-based materials

open access: yesChemical Engineering Journal, 2023
Kirushnapillai Kopitha   +7 more
semanticscholar   +1 more source

3D‐Printed Crosslinked Nanocellulose‐MXene Hydrogels and Aerogels with High Strength and Conductivity

open access: yesSmall, EarlyView.
This study presents a robust strategy for 3D printing conductive, mechanically resilient MXene–CNF composite structures using a single‐step freeze‐induced crosslinking method. The printed architectures remain stable in both wet and dry states, exhibit high electrical conductivity and mechanical strength, and demonstrate practical application in fully ...
Nuzhet Inci Kilic   +5 more
wiley   +1 more source

Effect of Metal–Metal Distance on the Performance of Dual‐Atom Catalysts for the Oxygen Reduction Reaction: A Density Functional Theory and Micro‐kinetics Study

open access: yesSmall, EarlyView.
Density functional theory calculations and microkinetic modeling were carried out on 108 dual‐atom catalysts with varied metalmetal distances ranging from 2.2 to 3.5 Å. The results reveal that moderate spacing of around 3.0 Å promotes bridging oxygen adsorption and dissociative reduction pathways, weakens the hydroxylhydroperoxyl scaling relationship ...
Yu Mao   +7 more
wiley   +1 more source

The Open DAC 2025 Dataset for Sorbent Discovery in Direct Air Capture

open access: yes
Identifying useful sorbent materials for direct air capture (DAC) from humid air remains a challenge. We present the Open DAC 2025 (ODAC25) dataset, a significant expansion and improvement upon ODAC23 (Sriram et al., ACS Central Science, 10 (2024) 923), comprising nearly 60 million DFT single-point calculations for CO$_2$, H$_2$O, N$_2$, and O$_2 ...
Sriram, Anuroop   +14 more
openaire   +2 more sources

Engineering Iridium–Ruthenium Dual‐Atomic Active Sites on Redox‐Active Covalent Organic Frameworks for Boosted Overall Water Splitting

open access: yesSmall, EarlyView.
Atomically dispersed IrRu dual‐atomic sites are anchored on donor‐acceptor‐based redox‐active COF for overall water electrolysis, and the active sites separation mechanism induced by giant multifunctional active‐site synergistic enhancement (MASE) effect was explored by the operando spectroscopy and DFT calculations.
Lei Ran   +10 more
wiley   +1 more source

LCCO2 Assessment and Fertilizer Production from Absorbed-CO2 Solid Matter in a Small-Scale DACCU Plant

open access: yesEnergies
This study investigates a novel method of utilizing Direct Air Capture (DAC) technology for fertilizer production. Unlike traditional Direct Air Carbon Capture and Utilization (DACCU) technologies, Direct Air Carbon Capture for Fertilizers (FDAC) has the
Tianjiao Cheng   +3 more
doaj   +1 more source

Linking geothermal district heating with Direct Air Capture [PDF]

open access: yes
Achieving net-zero emissions and combating climate change necessitate the adoption of negative emission technologies. Direct Air Capture (DAC), which removes CO2 directly from ambient air, shows great promise but requires significant energy, particularly
Miocic, Johannes
core   +1 more source

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