Results 131 to 140 of about 4,064,010 (293)

Fixação de carbono através de microalgas nativas (Chlamydomonas sp.) cultivadas em diferentes concentrações de CO2 [PDF]

open access: yes, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Ambiental, Florianópolis, 2013.Devido ao atual problema do aumento das emissões de Gases de Efeito Estufa (GEE), especialmente de ...
Neves, Fábio de Farias
core  

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

An AI-aided carbon conversion framework for efficient carbon storage

open access: yesJournal of King Saud University: Engineering Sciences
Artificial intelligence (AI)-assisted carbon dioxide (CO₂) capture aims to optimize the collection and storage of CO₂ from power plants and industrial operations, thereby contributing to emission reduction and climate change mitigation.
Klemens Katterbauer   +2 more
doaj   +1 more source

On the synergy between Ru and K2CO3 supported on carbon nanofibers for the direct air capture and conversion of CO2

open access: yesJournal of CO2 Utilization
Dual functional materials for CO2 capture (DFMs) combine a CO2 sorbent and hydrogenation catalyst on the same support material. Here, we present a DFM specifically designed for direct air capture of CO2 and subsequent conversion of the captured CO2.
Freek Karaçoban   +3 more
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Electrochemical deprotonation of halohydrins enables cascading reactions for CO2 capture and conversion into ethylene carbonate

open access: yesNature Communications
Electrochemical processes for CO2 mitigation can be broadly categorized into two approaches: CO2 capture via electrochemically generated bases and CO2 conversion through electrochemical reduction.
Jeong Hyun Kim   +8 more
doaj   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi   +5 more
wiley   +1 more source

Efficiency of CO2 photoreduction to hydrocarbons with K2Fe2O4/rGO heterojunction as a photocatalyst

open access: yesJournal of CO2 Utilization
Conversion of CO2 into single-carbon (C1) or multi-carbon (C2+) compounds with high value-added chemicals is highly desirable but challenging. Under moderate, environmentally amiable conditions, photocatalysis may afford the deactivation and controllable
Hung-Lin Chen   +5 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

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