Results 21 to 30 of about 1,811,393 (164)

Beyond Structural Stabilization of Highly‐Textured AlN Thin Films: The Role of Chemical Effects

open access: yesAdvanced Materials Interfaces
The crystalline quality and degree of c‐axis orientation of hexagonal AlN thin films correlate directly with their functional properties. Therefore, achieving AlN thin films of high crystalline quality and texture is of extraordinary importance for many ...
Oleksandr V. Pshyk   +4 more
doaj   +1 more source

Decoupling Analysis of Ignition Processes of Ammonia/N-Heptane Mixtures

open access: yesEnergies
To further understand the influence of n-heptane on the ignition process of ammonia, an isotope labeling method was applied in the current investigation to decouple the influence of the chemical effect, the thermal effect, and the effect of O radical ...
Zheng Li   +9 more
doaj   +1 more source

The studies on dehydration reaction mechanism of irradiated solid acid - nanostructured sodium - bentonite clay

open access: yesФізика і хімія твердого тіла
Research findings can offer data and a theoretical framework for a quantitative examination of the bentonite dehydration mechanism. The reasons for changes in pore’ water under the influence of gamma rays in vacuum and in the presence of oxygen was ...
M.K. Ismayilova   +4 more
doaj   +1 more source

Moving beyond Risk Quotients: Advancing Ecological Risk Assessment to Reflect Better, More Robust and Relevant Methods

open access: yesEcologies, 2022
Under standard guidance for conducting Ecological Risk Assessments (ERAs), the risks of chemical exposure to diverse organisms are most often based on deterministic point estimates evaluated against safety-factor-based levels of concern (LOCs). While the
Sandy Raimondo, Valery E. Forbes
doaj   +1 more source

Online Analysis of Heavy Volatile Products from Cigar Leaves Pyrolysis Using In-Situ Atmospheric Pressure Photoionization Mass Spectrometry

open access: yesZhipu Xuebao
This study presented a novel analytical strategy employing in-situ atmospheric pressure photoionization high-resolution mass spectrometry (in-situ APPI-HRMS) coupled with direct orifice sampling for the online and real-time analysis of heavy gaseous ...
Cun-yong ZHANG   +7 more
doaj   +1 more source

Effect of chemical treatments on the chemical composition and properties of flax fibers [PDF]

open access: yesJournal of the Serbian Chemical Society, 2017
Flax fibers were modified with NaOH and NaClO2 under different conditions in order to clarify effects of hemicelluloses and lignin removal on the morphology and properties of flax fibers, but also to improve fiber quality.
Lazić Biljana D.   +3 more
doaj   +1 more source

Local field effect on luminescent properties of organic molecule-doped silica nanoparticles

open access: yesOptical Materials: X, 2021
The local field effect involves the modification of the spontaneous emission rate of an emitting center in a nanoparticle (NP) due to its environment which modifies the photon density of states and the electric field acting within the NP.
Anjun Huang   +2 more
doaj   +1 more source

Freshwater water quality criteria for phthalate esters and recommendations for the revision of the water quality standards

open access: yesEcotoxicology and Environmental Safety
With increasing urbanization and rapid industrialization, more and more environmental problems have arisen. Phthalates (PAEs) are the foremost and most widespread plasticizers and are readily emitted from these manufactured products into the environment.
Yajun Hong   +8 more
doaj   +1 more source

Temperature-responsive self-contraction nanofiber/hydrogel composite dressing facilitates the healing of diabetic-infected wounds

open access: yesMaterials Today Bio
Bacterial infections and long-term inflammation cause serious secondary damage to chronic diabetic wounds and hinder the wound healing processes. Currently, multifunctional hydrogels have shown promising effects in chronic wound repair.
Yakun Huang   +11 more
doaj   +1 more source

Recent Developments in Satellite Remote Sensing for Air Pollution Surveillance in Support of Sustainable Development Goals

open access: yesRemote Sensing
Air pollution is an integral part of climatic, environmental, and socioeconomic current affairs and a cross-cutting component of certain United Nations Sustainable Development Goals (SDGs).
Dimitris Stratoulias   +4 more
doaj   +1 more source

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