Results 121 to 130 of about 589,999 (404)

Internally mixed soot, sulfates, and organic matter in aerosol particles from Mexico City

open access: yes, 2008
Soot particles, which are aggregated carbonaceous spherules with graphitic structures, are major aerosol constituents that result from burning of fossil fuel, biofuel, and biomass. Their properties commonly change through reaction with other particles or
K. Adachi, P. Buseck
semanticscholar   +1 more source

Improving Surface Quality of Titanium Electrodeposition from a Deep Eutectic Solvent with Organic and Inorganic Additives

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, the electroplating of titanium from an organic solvent, ethaline, is shown. Polymer additives are shown to smooth the roughness of the film, and small molecule additives are shown to produce a near‐mirror finish to the deposited metal. Titanium electroreduction is desired for a variety of medical, electronic, and bonding applications but has ...
Steven Livers   +7 more
wiley   +1 more source

Features of Authigenic Mineralization and Geochemical Processes of Fossilization of Marine Reptile Vertebrae (Oxford-Kimmeridge, Republic of Tatarstan)

open access: yesGeoresursy
Studies were conducted on the sequence and conditions of authigenic mineral formation in fossil bone tissue, as well as the chemical composition and geochemical characteristics of fossilization processes in marine reptile vertebrae discovered in ...
M. S. Glukhov   +3 more
doaj   +1 more source

New Pressure-Induced Polymorphic Transitions of Anhydrous Magnesium Sulfate

open access: yes, 2017
The effects of pressure on the crystal structure of the three known polymorphs of magnesium sulfate have been theoretically study by means of DFT calculations up to 45 GPa.
Benmakhlouf, A.   +5 more
core   +1 more source

Involvement of UDP-Glucuronosyltransferases and Sulfotransferases in the Excretion and Tissue Distribution of Resveratrol in Mice. [PDF]

open access: yes, 2017
Resveratrol is a naturally occurring polyphenolic compound with various pharmacological activities. It is unknown whether the expression of metabolizing enzymes correlates with resveratrol levels in organs and tissues.
Brenner, Stefan   +8 more
core   +2 more sources

Mechanically Adaptable High‐Performance p(SBMA‐MMA) Copolymer Hydrogel with Iron (II/III) Perchlorate for Wearable Thermocell Applications

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A high‐performance n‐type element for quasi‐solid‐state thermocells has been introduced, outperforming conventional p‐type elements and showcasing the potential to harness body heat as an energy source or power embedded sensors. This advance significantly contributes to waste thermal energy harvesting and wearable technology, paving the way for self ...
Gilyong Shin   +10 more
wiley   +1 more source

Appraisal of Industrial Pollutants in Sewage and Biogas Production Using Multivariate Analysis and Unsupervised Machine Learning Clustering

open access: yesApplied Sciences
Sewage composition analysis is important for understanding environmental impact and ensuring effective treatment processes. In this study, we employed multivariate analysis techniques to delve into the intricate composition of sewage.
Wiktor Halecki   +2 more
doaj   +1 more source

Facile Synthesis of CuxS Electrocatalysts for CO2 Conversion into Formate and Study of Relations Between Cu and S with the Selectivity

open access: yesAdvanced Functional Materials, EarlyView.
Copper sulfide based electrocatalysts for CO2 conversion are selective for production of formate as major product. Transformations under electrochemical conditions result in significant sulfur loss, and this study examines the nature of how persistent, residual sulfur (observed as surface SO42– species and S dissolved in the electrolyte) can sustain ...
Sasho Stojkovikj   +8 more
wiley   +1 more source

An Investigation into the Suitability of Sulfate-Reducing Bacteria as Models for Martian Forward Contamination [PDF]

open access: yes, 2018
The NASA Planetary Protection policy requires interplanetary space missions do not compromise the target body for a current or future scientific investigation and do not pose an unacceptable risk to Earth, including biologic materials.
Silver, Maxwell M. W.
core   +2 more sources

A chemical model for the cooperation of sulfates and carboxylates in calcite crystal nucleation: Relevance to biomineralization.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1987
Acidic matrix macromolecules involved in regulation of biological crystal growth often contain aspartic acid-rich domains and covalently bound sulfated polysaccharides. We propose that sulfates and beta-sheet structured carboxylates cooperate in oriented
L. Addadi   +4 more
semanticscholar   +1 more source

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