Results 71 to 80 of about 1,904 (180)

Local Ignition in Carbon/Oxygen White Dwarfs -- I: One-zone Ignition and Spherical Shock Ignition of Detonations

open access: yes, 2005
The details of ignition of Type Ia supernovae remain fuzzy, despite the importance of this input for any large-scale model of the final explosion. Here, we begin a process of understanding the ignition of these hotspots by examining the burning of one ...
Desbordes D.   +4 more
core   +2 more sources

Synthesis, characterization, and performance of x_MoO3/Z‐22 and x_MoO3/MMP catalysts for biodiesel production

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 6, Page 2820-2841, June 2026.
Methyl transesterification of soybean oil using heterogeneous catalysts for biodiesel production. Abstract The growing global demand for renewable fuels has driven the search for efficient catalysts in biodiesel production. This study presents the synthesis and characterization of x_MoO3/Z‐22 and x_MoO3/MMP heterogeneous catalysts, and evaluates the ...
André Miranda da Silva   +4 more
wiley   +1 more source

Enhanced Third‐Order Nonlinear Optics From In Situ Grown Lead‐Free Cs2AgInCl6 Double Perovskite Nanocrystals in Chalcogenide Glass

open access: yesNanophotonics, Volume 15, Issue 10, 27 May 2026.
This work successfully achieves the in situ nanocrystallization of lead‐free Cs2AgInCl6 double perovskite within a chalcogenide glass host. The novel composite demonstrates a remarkable synergy, leading to a strong enhancement in third‐order nonlinear optical properties and a substantially improved optical limiting response, thereby offering a stable ...
Ruonan Chen   +4 more
wiley   +1 more source

Time-dependent Computational Studies of Premixed Flames in Microgravity [PDF]

open access: yes
This report describes the research performed at the Center for Reactive Flow and Dynamical Systems in the Laboratory for Computational Physics and Fluid Dynamics, at the Naval Research Laboratory, in support of NASA Microgravity Science and Applications ...
Kailasanath, K.   +2 more
core   +1 more source

Polyvinylidene Fluoride: A Growing Specialty Polymer with Many Facets

open access: yesChinese Journal of Chemistry, Volume 44, Issue 10, Page 1697-1710, 15 May 2026.
Comprehensive Summary Polyvinylidene fluoride (PVDF), the second largest produced fluoropolymer, exhibits outstanding chemical, physical, electroactive and electrochemical properties and is involved in many High‐Tech applications. This review reports recent novelties in synthesis, characterization, processes and applications. Recent preparation studies
Bruno Améduri
wiley   +1 more source

Structure–Activity Relationship in UV‐Driven Gas‐Phase VOC Degradation Over Nanostructured SrTiO3 Photocatalysts

open access: yesChemCatChem, Volume 18, Issue 9, 14 May 2026.
Strontium titanate photocatalysts with tailored size, morphology, and porosity are evaluated for UV‐driven gas‐phase VOC degradation. A sol–gel‐derived nanostructured STO exhibits enhanced charge transfer and surface accessibility, outperforming commercial STOs and approaching TiO2 activity for ethanol and propionic acid oxidation, while revealing ...
Niloofar Haghshenas   +7 more
wiley   +1 more source

Solar‐Driven Interfacial Evaporation: Functional Materials, Structural Innovations, Synergistic Light–Heat–Mass Transfer Mechanisms, and Practical Applications

open access: yesCarbon Neutralization, Volume 5, Issue 3, May 2026.
This review focuses on solar‐driven interfacial evaporation (SIE) for sustainable desalination, covering material design, performance, and applications. It also discusses current challenges and future directions, positioning SIE as a key technology to address global water scarcity. ABSTRACT The global freshwater crisis, intensified by population growth
Jiugang Li   +10 more
wiley   +1 more source

Spherically expanding flame simulations in Cantera using a Lagrangian formulation

open access: yes, 2021
A Lagrangian-based one-dimensional approach has been developed using Cantera to study the dynamics of spherically expanding flames. The detailed reaction model USC-Mech II has been employed to examine flame propagating in hydrogen-air mixtures. In the first part, our approach has been validated against laminar flame speed and Markstein number data from
Maxwell, B   +2 more
openaire   +1 more source

Thickness Reduction Strategy for Graphite Composite Bipolar Plates: Materials, Structure, and Manufacturing Process

open access: yesCarbon Neutralization, Volume 5, Issue 3, May 2026.
Schematic diagram of challenges and advanced strategies by CBP after thickness reduction. ABSTRACT The proton exchange membrane fuel cell (PEMFC) converts clean hydrogen's chemical energy into electricity and is vital for carbon neutrality. However, its development is limited by low volumetric power density and high cost.
Chengxin Li   +6 more
wiley   +1 more source

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