Results 81 to 90 of about 457,905 (387)

Comparison of TROPOMI/Sentinel-5 Precursor NO2 observations with ground-based measurements in Helsinki

Atmospheric Measurement Techniques, 2019
. We present a comparison between satellite-based TROPOMI (TROPOspheric Monitoring Instrument) NO2 products and ground-based observations in Helsinki (Finland).
I. Ialongo, H. Virta, H. Eskes, J. Hovila, J. Douros   +4 more
semanticscholar   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

Advanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich, Michelle Kobus, Shirin Mesgarha, Erica Moretto, Laurens Grosche, Wolfgang Maison   +5 more
wiley   +1 more source

Contaminación atmosférica y calidad del aire en Madrid: Análisis de las concentraciones de SO2, CO, NO2, ozono y PM10 (1980-2003)

Estudios Geográficos, 2005
[es] En este artículo analizamos la calidad del aire en Madrid a partir de los límites propuestos por la Directiva europea (1999/30/EC) para el SO2, CO, NO2, ozono y PM10.
Felipe Fernández García
doaj   +1 more source

Air pollution and hospital admission in patients with chronic obstructive pulmonary disease in Tehran, Iran [PDF]

Journal of Emergency Practice and Trauma, 2016
Objective: There are many communities at risk by a series of air pollution episodes. Tehran is one of the most polluted cities in the world. The presence of one or more air pollutants with a certain concentration in a particular period of time can ...
Hasan Amiri, Ali Bidari, Samad Shams Vahdati, Masumeh Emamverdy, Nilofar Ghodrati, Tayeb Ramim   +5 more
doaj   +1 more source

Mechanism of the NO2 Conversion to NO2− in an Alkaline Solution

Analytical Sciences, 2004
The reaction of NO2 and NaOH aqueous solution at room temperature was studied for elucidating the behavior of gaseous NO2 in an alkaline solution. Experimental runs related to NO2 absorption have been carried out in various pH solutions. The nitrite and nitrate ions formed in these absorption solutions were quantitatively analyzed.
Xinyu, Chen, Kenji, Okitsu, Norimichi, Takenaka, Hiroshi, Bandow   +3 more
openaire   +3 more sources

Searching for optimal variables in real multivariate stochastic data [PDF]

, 2012
By implementing a recent technique for the determination of stochastic eigendirections of two coupled stochastic variables, we investigate the evolution of fluctuations of NO2 concentrations at two monitoring stations in the city of Lisbon, Portugal.
A. Russo, Boettcher, Carvalho, D. Kleinhans, de Nevers, Demuzere, F. Raischel, Friedrich, Friedrich, Friedrich, Gardiner, Gardner, Ghasemi, Gradis̃ek, Hooyberghs, Kleinhans, Kolehmainen, Kukkonen, Lade, Lade, Lind, Lind, Lind, M. Haase, Micheletti, P.G. Lind, Pearson, Risken, van Mourik, Vasconcelos, Wilks   +30 more
core   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Assessment of Sensor Data from an Air Quality Monitoring Network—The Need for Machine Learning-Based Recalibration and Its Relevance in Health Impact Analysis of Local Pollution Events

Atmosphere
Accurate, high-resolution air quality data are crucial for understanding environmental health risks; however, the cost and complexity of maintaining dense, reference-grade monitoring networks remain a significant barrier.
Valentino Petrić, Nikolina Račić, Ivana Hrga, Danijel Grgec, Marko Marić, Adela Krivohlavek, Zvonimir Anić, Mario Lovrić, Matijana Jergović   +8 more
doaj   +1 more source

Electrosynthesis of Bioactive Chemicals, From Ions to Pharmaceuticals

Advanced Functional Materials, EarlyView.
This review discusses recent advances in electrosynthesis for biomedical and pharmaceutical applications. It covers key electrochemical materials enabling precise delivery of ions and small molecules for cellular modulation and disease treatment, alongside catalytic systems for pharmaceutical synthesis.
Gwangbin Lee, Sojin Kim, Myeongeun Lee, Kyoungsuk Jin, Jimin Park   +4 more
wiley   +1 more source

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

Advanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung, Jungwoo Shin, Qiujie Zhao, Minjee Kang, Christopher Evans, Cecilia Leal, Paul V. Braun, David G. Cahill   +7 more
wiley   +1 more source