Results 11 to 20 of about 88,113 (258)

Ambient Air Quality in Upper Silesia Region Pre-During, and Post-COVID-19 Periods

open access: yesArchitecture, Civil Engineering, Environment, 2023
Governments worldwide have established lockdowns to limit the spread of COVID-19 during the pandemic. The restrictions on travel and reduction of economic activity have led to a temporary improvement in air quality in several countries, especially in ...
Brągoszewska Ewa   +2 more
doaj   +1 more source

Multidetector Computed Tomography Criteria of Operative Treatment of Diastasis Recti Abdominis

open access: yesGalician Medical Journal, 2016
We introduce an experience of surgical treatment of 92 patients with diastasis recti abdominis (DRA). A high efficiency of multidetector computed tomography (MDCT) in this category of patients is shown. There were 3 degrees of DRA distinguished depending
G. Petrenko, V. Syplyviy, D. Petrenko
doaj   +1 more source

TEMPORAL AND SPATIAL VARIATION OF AIR POLLUTION İN BURSA, KOCAELİ AND YALOVA, TURKEY [PDF]

open access: yesActa Geobalcanica, 2017
Air pollution is a serious environmental problem. The anthropogenic air pollutants have been intensified in the atmosphere of industrial and densely populated cities.
Serpil Menteşe
doaj   +1 more source

Gas-sensing features of nanostructured tellurium thin films

open access: yesBeilstein Journal of Nanotechnology, 2020
Nanocrystalline and amorphous nanostructured tellurium (Te) thin films were grown and their gas-sensing properties were investigated at different operating temperatures with respect to scanning electron microscopy and X-ray diffraction analyses.
Dumitru Tsiulyanu
doaj   +1 more source

Estimating gaseous pollutants in the air near Daura Refinery, Daura Power Plant and South of Baghdad Power Plant by calculating the fuel discharge

open access: yesPrzegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2021
This study addresses estimation of emission rates and concentrations of SO2, CO and NO2 gases emitted from Daura Refinery (DR), Daura Power Plant (DPP) and South of Baghdad Power Plant (SBPP) by calculating the fuel discharge.
Thaer O. Roomi, Adel S. Abed
doaj   +1 more source

A study of trend and seasonality of tropospheric NO2 over Iran by using 14 years of OMI data acquisition [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2017
Results of a study on tropospheric NO2 over Iran for a 14 years period have been reported. Monthly averages of tropospheric NO2 concentrations recorded by OMI from Oct 2004 to Mar 2018 have been used.
Ruhollah Moradhaseli
doaj   +1 more source

Crystalline WO3 nanoparticles for No2 sensing [PDF]

open access: yesProcessing and Application of Ceramics, 2020
This study shows excellent NO2-sensing properties of tungsten oxide nanoparticles, prepared using a facile procedure which includes dissolution of metallic tungsten in hydrogen peroxide with subsequent low-temperature (400 °C) heating.
Matović Branko   +10 more
doaj   +1 more source

Nitrogen Dioxide Monitoring with Satellite Imagery over Ankara, Turkey [PDF]

open access: yesNumerical Methods in Civil Engineering
Earth observation satellites possess key characteristics such as high temporal and spatial resolution, wide coverage imaging, multispectral capabilities, and access to a rich archive of images through various gateways.
Maryam Zare Shahne   +2 more
doaj   +1 more source

Covid-19 mobility restrictions: impacts on urban air quality and health

open access: yesBuildings & Cities, 2021
In 2020, Covid-19-related mobility restrictions resulted in the most extensive human-made air-quality changes ever recorded. The changes in mobility are quantified in terms of outdoor air pollution (concentrations of PM2.5 and NO2) and the associated ...
Nahid Mohajeri   +6 more
doaj   +1 more source

Statistical Analysis of SO2 and NO2 with Respect to Meteorological Parameters (Gwalior, India)

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2021
The present study is carried out in Gwalior to know the level of pollutants viz sulphur dioxide (SO2) and nitrogen dioxide (NO2). In this study, both NO2 and SO2 were collected during different seasons, and estimation was done using chemical methods. The
Mehraj ud din Bhat, Anish C. Pandey
doaj   +1 more source

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