Results 91 to 100 of about 370,037 (300)

Interfacial photochemistry at the ocean surface is a global source of organic vapors and aerosols

Nature Communications, 2018
Volatile organic compounds are photochemically produced in the ocean surface microlayer, but estimates are missing. Here the authors combine experiments and observations to quantify photochemical emissions of volatile organic compounds and show that they
Martin Brüggemann, Nathalie Hayeck, Christian George   +2 more
doaj   +1 more source

Global atmospheric budget of acetaldehyde: 3-D model analysis and constraints from in-situ and satellite observations [PDF]

, 2010
We construct a global atmospheric budget for acetaldehyde using a 3-D model of atmospheric chemistry (GEOS-Chem), and use an ensemble of observations to evaluate present understanding of its sources and sinks.
Apel, E., Barkley, M., de Gouw, J. A., Eerdekens, G., Flocke, F., Guenther, A., Karl, T., Millet, D. B., Nelson, N. B., Palmer, Paul, Riemer, D. D., Siegel, D. A., Singh, H. B., Sinha, V., Warneke, C., Williams, J.   +15 more
core   +2 more sources

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Mechanoregulatory Effects of Cell‐Scale Microwells on Epithelial Cell Phenotype

Advanced Functional Materials, EarlyView.
In small polycaprolactone microwells, A549 epithelial cells span well edges, in contrast to cells growing on flat substrates. Focal adhesion sites (yellow) concentrate at topographic boundaries, while cytoskeletal tension (magenta stress fibers) is transmitted to the nucleus (blue), reducing nuclear sphericity.
Ruiwen He, Wang Sik Lee, Phattadon Yajan, Aaron Lee, Mauro Sousa de Almeida, Sandeep Keshavan, Jozef Adamcik, Céline Loussert‐Fonta, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +10 more
wiley   +1 more source

Naturally occurring volatile organic compounds in deep bedrock groundwater

Communications Earth & Environment
In deep continental bedrock groundwater, volatile organic compounds pose intriguing questions about their occurrence. Although their natural sources remain poorly characterized, they potentially have profound effects on global elemental cycles and safety
Riikka Kietäväinen, Mari Nyyssönen, Maija Nuppunen-Puputti, Malin Bomberg   +3 more
doaj   +1 more source

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Air Pollution and Per Capita Income: A Disaggregation of the Effects of Scale, Sectoral Composition, and Technological Change [PDF]

During the last decade, researchers have investigated the relationship between per capita income and environmental quality. This paper disaggregates the relationship between per capita income and emissions of carbon monoxide, carbon dioxide, sulfur ...
Rachel A. Bouvier
core  

Emission of volatile halogenated organic compounds over various Dead Sea landscapes [PDF]

, 2019
Volatile halogenated organic compounds (VHOCs), such as methyl halides (CH3X; X is Br, Cl and I) and very short-lived halogenated substances (VSLSs; bromoform-CHBr3, dibromomethane-CH2Br2, bromodichloromethane-CHBrCl2, trichloroethylene-C2HCl3 ...
Blake, D, Guenther, A, Lerner, G, Li, Q, Rhew, R, Shechner, M, Tas, E, Wishkerman, A   +7 more
core  

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

A Comprehensive Emission Inventory of Bbiogenic Volatile Organic Compounds in Europe: Improved Seasonality and Land-cover [PDF]

, 2013
Biogenic volatile organic compounds (BVOC) emitted from vegetation are important for the formation of secondary pollutants such as ozone and secondary organic aerosols (SOA) in the atmosphere.
Aksoyoglu, S., Barmpadimos, I., Keller, J., Lund University., Oderbolz, D. C., Plass-Duelmer, C., Prevot, A. S. H., Skjoth, Carsten,, Steinbrecher, R.   +8 more
core   +3 more sources