Results 21 to 30 of about 60,850 (257)

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

Computational study of the intercalation of NO2 between bilayer MoTe2

open access: yes, 2022
Transition-metal dichalcogenide (TMD) layers have been a subject of widespread interest as chemical sensors with their sensitivity selectively enhanced depending on the number of layers.
Maciej Jan, Szary
core   +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

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

Correlación entre diferentes contaminantes atmosféricos de la Ciudad de México y el Área Metropolitana

open access: yesCiencia Ergo Sum, 2020
Se lleva a cabo un estudio de correlación estadística entre datos numéricos correspondientes a la concentración de las partículas suspendidas y a la concentración de gases contaminantes que son obtenidos de las mediciones registradas en la base de datos ...
Israel Gutiérrez González   +3 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

PRIMARY MULTIPLE MALIGNAT TUMORS MOST COMMON LOCALIZATIONS CANCER - CANCER STUDY CLINICS

open access: yesИсследования и практика в медицине, 2016
The purpose. Analysis of statistical data of oncological departmental polyclinics, serving a permanent attached contingent of patients in cases of the most common cancer sites: basal cell skin cancer, breast cancer, prostate cancer. Materials and methods.
G. V. Goncharenko
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

Recent Advances in Aerosol and Trace Gas Monitoring by Employing the Scheimpflug Lidar Techniques [PDF]

open access: yesEPJ Web of Conferences, 2020
Lidar techniques, based on the time-of-flight principle, have been widely employed in atmospheric remote sensing since decades. The Scheimpflug lidar (SLidar) technique, which employing robust high-power laser diodes as light sources and highly ...
Mei Liang   +5 more
doaj   +1 more source

The photodissociation dynamics of NO2 at 308nm and of NO2 and N2O4 at 226nm

open access: yesThe Journal of Chemical Physics, 2006
Velocity-map ion imaging has been applied to the photodissociation of NO2 via the first absorption band at 308nm using (2+1) resonantly enhanced multiphoton ionization detection of the atomic O(PJ3) products. The resulting ion images have been analyzed to provide information about the speed distribution of the O(PJ3) products, the translational ...
Brouard, M   +4 more
openaire   +3 more sources

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