Results 21 to 30 of about 161,932 (283)

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

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

Semiconductor-type SnO2-based NO2 sensors operated at room temperature under UV-light irradiation [PDF]

open access: yes, 2017
NO2-sensing properties of typical oxide (SnO2, In2O3, or WO3)-based semiconductor gas sensors were measured at 30 °C with and without UV-light irradiation (main wavelength: 365 nm), and effects of noble-metal (Pd or Pt) loading, UV-light intensity (0–134
Urata, Kaoru   +9 more
core   +1 more source

COVID-19 lockdown-induced changes in NO2 levels across India observed by multi-satellite and surface observations [PDF]

open access: yes, 2021
We have estimated the spatial changes in NO2 levels over different regions of India during the COVID-19 lockdown (25 March–3 May 2020) using the satellite-based tropospheric column NO2 observed by the Ozone Monitoring Instrument (OMI) and the ...
Ravindra, K.   +10 more
core   +1 more source

Air pollution modelling for birth cohorts: a time-space regression model [PDF]

open access: yes, 2016
To investigate air pollution effects during pregnancy or in the first weeks of life, models are needed that capture both the spatial and temporal variability of air pollution exposures.; We developed a time-space exposure model for ambient NO2 ...
Georgette Stern   +15 more
core   +2 more sources

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

?????? ?????? ?????? NO2 ?????? ?????? ?????? ????????? ?????? ?????? ?????? ??? ???????????? ?????? ?????? [PDF]

open access: yes, 2021
Atmospheric nitrogen dioxide (NO2) is mainly caused by anthropogenic emissions. It contributes to the formation of secondary pollutants and ozone through chemical reactions, and adversely affects human health.
Yoo, Cheolhee   +4 more
core   +1 more source

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

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

Microstructural control of porous In2O3 powders prepared by ultrasonic-spray pyrolysis employing self-synthesized polymethylmethacrylate microspheres as a template and their NO2-sensing properties [PDF]

open access: yes, 2017
NO2-sensing properties of porous In2O3 powders prepared by ultrasonic-spray pyrolysis employing self-synthesized polymethylmethacrylate (PMMA) microspheres as a template have been investigated in this study.
Hyodo, Takeo   +4 more
core   +1 more source

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