Results 51 to 60 of about 1,864,297 (295)

Air Pollution and the Risk and Progression of Multiple Sclerosis: A Systematic Review and Meta‐Analysis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Purpose Air pollution has been linked to several neurological conditions, including stroke and neurodegenerative diseases. Evidence regarding its association with multiple sclerosis (MS) remains conflicting, limited by small sample sizes. Methods PubMed, Embase, Scopus, and Cochrane controlled register of trials (CENTRAL) were searched on ...
Ahmad A. Toubasi, Thuraya N. Al‐Sayegh
wiley   +1 more source

Practical Use of Metal Oxide Semiconductor Gas Sensors for Measuring Nitrogen Dioxide and Ozone in Urban Environments

Italian National Conference on Sensors, 2017
The potential of inexpensive Metal Oxide Semiconductor (MOS) gas sensors to be used for urban air quality monitoring has been the topic of increasing interest in the last decade.
P. J. D. Peterson, Amrita Aujla, Kirsty H. Grant, Alex G. Brundle, M. R. Thompson, J. V. Hey, R. Leigh   +6 more
semanticscholar   +1 more source

Formation of carbon-induced nitrogen-centered radicals on titanium dioxide under illumination

, 2023
Titanium dioxide is the most studied photocatalytic material and has been reported to be active for a wide range of reactions including oxidation of hydrocarbons and reduction of nitrogen.
Marta, Hatzell, Yu-Hsuan, Liu, Carsten, Sievers, Nianhan, Tian, Andrew, Medford, Po-Wei, Huang, Tijana, Rajh, Giada, Innocenti   +7 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Nitrogen Dioxide Exposure in School Classrooms of Inner-City Children with Asthma

Journal of Allergy and Clinical Immunology, 2017
Background: Ambient and home exposure to nitrogen dioxide (NO2) causes asthma symptoms and decreased lung function in children with asthma. Little is known about the health effects of school classroom pollution exposure.
J. Gaffin, M. Hauptman, C. Petty, W. Sheehan, Peggy S. Lai, J. M. Wolfson, D. Gold, B. Coull, P. Koutrakis, W. Phipatanakul   +9 more
semanticscholar   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Tropospheric nitrogen dioxide levels vary diurnally in Asian cities

Communications Earth & Environment
Satellite measurements of nitrogen dioxide have been used to infer nitrogen oxide emissions, a critical component in tropospheric chemistry and pollution.
Junsung Park, Hyunkee Hong, Hanlim Lee, Si-Wan Kim, Jhoon Kim, Michel Van Roozendael, Caroline Fayt, Myong-Hwan Ahn, Daniel J. Jacob, Seunghwan Seo, Kyoung-Min Kim, Daewon Kim, Wonei Choi, Won-Jin Lee, Dong-Won Lee, Thomas Wagner, Andreas Richter, Nickolay A. Krotkov, Lok N. Lamsal, Dai Ho Ko, Seung Hoon Lee, Jung-Hun Woo   +21 more
doaj   +1 more source

Influence of carbon dioxide content in the biogas to nitrogen oxides emissions [PDF]

Hemijska Industrija, 2010
Fuels derived from biomass are an alternative solution for the fossil fuel shortage. Usually this kind of fuels is called low calorific value fuels, due to the large proportion of inert components in their composition.
Živković Marija A., Adžić Miroljub M., Fotev Vasko G., Milivojević Aleksandar M., Adžić Vuk M., Ivezić Dejan D., Ćosić Boško D.   +6 more
doaj   +1 more source

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source