Results 41 to 50 of about 9,740 (217)

Analyzing the Impact of Evolving Combustion Conditions on the Composition of Wildfire Emissions Using Satellite Data

Geophysical Research Letters, Volume 50, Issue 23, 16 December 2023., 2023
Abstract Wildfires have become larger and more frequent because of climate change, increasing their impact on air pollution. Air quality forecasts and climate models do not currently account for changes in the composition of wildfire emissions during the commonly observed progression from more flaming to smoldering combustion.
Lindsey D. Anderson, Barbara Dix, Jordan Schnell, Robert Yokelson, J. Pepijn Veefkind, Ravan Ahmadov, Joost de Gouw   +6 more
wiley   +1 more source

Propiedades hipoglucemiantes del chocho Lupinus mutabilis [PDF]

Revista Ecuatoriana de Medicina y Ciencias Biológicas, 2018
Se evaluaron las propiedades hipoglucemiantes de la leguminosa Lupinus mutabilis (chocho) en un grupo de 36 estudiantes de educación superior (19 a 47 años). Se distribuyeron dosis de la leguminosa a dos grupos experimentales de los participantes con niveles de glucosa entre 70,9 mg/dl y los 99,8 mg/dl. El primer grupo (GEXP1) recibió una dosis en cada
Ana María Álvarez del Pozo, Estela Amalia Montes Vaca   +1 more
openaire   +1 more source

Lattice Tuning of Copper Single‐Crystal Surface for Electrochemical Carbon Monoxide Coupling Reaction: A Density Functional Theory Simulation

ChemElectroChem, Volume 10, Issue 19, October 2, 2023., 2023
The relationship between strain and reaction selectivity of CO reduction reaction on the deformation of Cu(111) and Cu(100) electrode surface have been studied by using the density functional theory calculation, *CHO and CO coupling is the favorable pathway on expanded Cu(111) surface, two *CO coupling is the favorable pathway on contracted copper ...
Xia‐Guang Zhang, Si Chen, Tao Zheng, Xiaopeng Xuan, Yaping Wen   +4 more
wiley   +1 more source

Exploring the missing source of glyoxal (CHOCHO) over China [PDF]

Geophysical Research Letters, 2012
Recent comparisons between satellite observed and global model simulated glyoxal (CHOCHO) have consistently revealed a large unknown source of CHOCHO over China. We examine this missing CHOCHO source by analyzing SCIAMACHY observed CHOCHO vertical column densities (VCDs) using a Regional chEmical trAnsport Model (REAM).
Zhen Liu, Yuhang Wang, Mihalis Vrekoussis, Andreas Richter, Folkard Wittrock, John P. Burrows, Min Shao, Chih‐Chung Chang, Shaw‐Chen Liu, Hongli Wang, Changhong Chen   +10 more
openaire   +1 more source

The ABC of Generalized Coordination Numbers and Their Use as a Descriptor in Electrocatalysis

Advanced Science, Volume 10, Issue 20, July 18, 2023., 2023
In this review, the basics of generalized coordination numbers (CN¯$\overline {{\rm{CN}}} $ or GCN) and their use to capture adsorption‐energy trends, elaborate electrocatalytic activity plots, and selectivity maps are shown. Importantly, CN¯$\overline {{\rm{CN}}} $ outlines the geometry of the active sites, allowing for atom‐by‐atom catalyst designs ...
Federico Calle‐Vallejo
wiley   +1 more source

Reassessing the ratio of glyoxal to formaldehyde as an indicator of hydrocarbon precursor speciation [PDF]

Atmospheric Chemistry and Physics, 2015
The yield of formaldehyde (HCHO) and glyoxal (CHOCHO) from oxidation of volatile organic compounds (VOCs) depends on precursor VOC structure and the concentration of NOx (NOx = NO + NO2).
J. Kaiser, G. M. Wolfe, K. E. Min, S. S. Brown, C. C. Miller, D. J. Jacob, J. A. deGouw, M. Graus, T. F. Hanisco, J. Holloway, J. Peischl, I. B. Pollack, T. B. Ryerson, C. Warneke, R. A. Washenfelder, F. N. Keutsch   +15 more
doaj   +1 more source

Problems with and Improvement of HCHO/NO₂ for Diagnosing Ozone Sensitivity—A Case in Beijing

Remote Sensing, 2023
Rfn (formaldehyde/nitrogen dioxide) is a common indicator based on satellite observations used to classify ozone formation sensitivity. However, it may underestimate anthropogenic volatile organic compounds (VOCs) in heavily polluted cities when only ...
Yanyu Kang, Guiqian Tang, Qihua Li, Baoxian Liu, Dan Yao, Yiming Wang, Yinghong Wang, Yuesi Wang, Wenqing Liu   +8 more
doaj   +1 more source

Efecto de la asociación con chocho (Lupinus mutabilis) y haba (Vicia faba) sobre los parámetros agronómicos del amaranto (Amaranthus quitensis)

Revista Alfa, 2022
En Ecuador, el cultivo de amaranto (Amaranthus quitensis) está adquiriendo cada vez mayor importancia debido al incremento en la demanda, sin embargo, existe hasta la fecha un escaso conocimiento sobre las variedades y los diferentes sistemas de siembra ...
Marco Pérez-Salinas, Segundo Curay, José Mangui, R. Santana, Carlos Vásquez   +4 more
semanticscholar   +1 more source

Supercritical carbon dioxide extraction of oils from Andean lupin beans: Lab‐scale performance, process scale‐up, and economic evaluation

Journal of Food Process Engineering, Volume 46, Issue 4, April 2023., 2023
Oils from Andean lupin beans were extracted on different units of scale to evaluate optimal scCO2 processing conditions and economical viability for industrial production. Abstract Oil extraction from Andean lupin beans (Lupinus mutabilis SWEET) via supercritical carbon dioxide (scCO2) was studied on both lab scale and pilot scale.
Miao Yu, Kai Kniepkamp, Jan Pieter Thie, Geert‐Jan Witkamp, Rob J. F. van Haren   +4 more
wiley   +1 more source

Portable broadband cavity-enhanced spectrometer utilizing Kalman filtering: application to real-time, in situ monitoring of glyoxal and nitrogen dioxide [PDF]

, 2017
This article describes the development and field application of a portable broadband cavity enhanced spectrometer (BBCES) operating in the spectral range of 440-480 nm for sensitive, real-time, in situ measurement of ambient glyoxal (CHOCHO) and nitrogen
Chen, Weidong, Fang, Bo, Ma, Xiao, Venables, Dean S., Wang, Shuo, Xu, Xuezhe, Zhang, Weijun, Zhao, Weixiong, Zhou, Jiacheng   +8 more
core   +1 more source