Results 31 to 40 of about 599,755 (252)

Effect of volcanic sulfur dioxide on solar UV irradiance during the 2023 Fagradalsfjall eruption in Reykjavík, Iceland

open access: yesMeteorologische Zeitschrift
Sulfur dioxide is an important atmospheric gas that can attenuate solar ultraviolet radiation. It can be found in greater quantities in highly polluted areas and especially in volcanic plumes.
Klára Čížková   +5 more
doaj   +1 more source

Reduction of Sulfur Dioxide to Sulfur Monoxide by Ferrous Porphyrin [PDF]

open access: yes, 2021
Reduction of SO¬2 to fixed forms of sulfur can address the growing concerns regarding its detrimental effect on health and environment as well as enable its valorization into valuable chemicals.
Aishik , Bhattacharya   +6 more
core   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow   +6 more
wiley   +1 more source

Effect of Drying Method on Sulfur Dioxide Content in Edible Mushrooms and Endogenous Transformation Factors

open access: yesShipin gongye ke-ji
In this study, dietary risk assessment of sulfur dioxide content in both fresh and dried commercially available edible mushrooms (Tremella fuciformis, Lentinus edodes, and Agaricus blazei) was conducted through risk quotient and point assessment methods.
Yiming TIAN   +5 more
doaj   +1 more source

Modeling the signature of sulfur mass-independent fractionation produced in the Archean atmosphere [PDF]

open access: yes, 2014
Minor sulfur isotope anomalies indicate the absence of O2 from the Archean atmosphere. A rich dataset showing large variations in magnitude and sign of Δ33S and Δ36S, preserved in both sulfates and sulfides, suggests that further constraints on Archean ...
Claire, Mark   +10 more
core   +1 more source

Optical Detection of Cellular Signals at Material Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren   +5 more
wiley   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Sea Port SO2 Atmospheric Emissions Influence on Air Quality and Exposure at Veracruz, Mexico

open access: yesAtmosphere, 2022
In this work, we identify the current atmospheric sulfur dioxide emissions of the Veracruz port, an important Mexican seaport experiencing rapid growth, and its influence on the surrounding areas.
Gilberto Fuentes García   +6 more
doaj   +1 more source

“Smelltronics”—From Gas to Smell Sensing

open access: yesAdvanced Materials, EarlyView.
The emerging field of smelltronics, encompassing sensing technologies for complex volatile organic compounds, holds significant potential for extracting valuable chemical information. It facilitates the noninvasive, real‐time monitoring of humans, food, and the environment.
Takeshi Ono   +7 more
wiley   +1 more source

Green processing of industrial waste and obtaining adsorbent for purification of sulfur dioxide

open access: yesGreen Processing and Synthesis
The article discusses current problems in the field of ecology and environmental protection related to the processing of industrial waste and the purification of sulfur dioxide. A technology has been developed for the purification of sulfur dioxide using
Kaldybayev Almaz   +4 more
doaj   +1 more source

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