Results 41 to 50 of about 6,691 (117)

Characterization of novel solar based nitrogen doped titanium dioxide photocatalytic membrane for wastewater treatment

open access: yesHeliyon
The increasing presence of microbial and emerging organic contaminants pose detrimental effects on the environment and ecosystem such as diseases, pandemics and toxicity. Most of these synthetic pollutants are biorecalcitrant and therefore persist in the
Kipchumba Nelson   +2 more
doaj   +1 more source

Modelling effects of acid deposition and climate change on soil and run-off chemistry at Risdalsheia, Norway [PDF]

open access: yesHydrology and Earth System Sciences, 2001
Elevated carbon dioxide levels, caused by anthropogenic emissions of carbon dioxide to the atmosphere, and higher temperature may lead to increased plant growth and uptake of nitrogen, but increased temperature may lead to increased nitrogen ...
J. P. Mol-Dijkstra   +3 more
doaj  

Efeito dos dióxidos de enxofre e de nitrogênio no desempenho de uma célula a combustível de membrana de intercâmbio de prótons Effect of sulfur and nitrogen dioxides on the performance of a proton exchange membrane fuel cell

open access: yesQuímica Nova, 2008
There is presently much interest in the clean and efficient generation of energy by proton exchange membrane fuel cells (PEMFC), using hydrogen as fuel. The generation of hydrogen by the reforming of other fuels, anaerobic fermentation of residual waters
Thiago Lopes, Ernesto R. Gonzalez
doaj   +1 more source

Preliminary Assessment of Air Pollution in the Archaeological Museum of Naples (Italy): Long Term Monitoring of Nitrogen Dioxide and Nitrous Acid

open access: yesAir
A project to assess air pollution at the National Archeological Museum in Naples was carried out. The main goal of the project was to develop and test a reliable yet simple monitoring system to be adopted at the same time in several exposition rooms ...
Federica Valentini   +6 more
doaj   +1 more source

Modeling Dispersion of Pollutant Gases Emitted from the Chimney of Sahand Thermal Power Plant Using SCREEN View Software [PDF]

open access: yesMuhandisī-i Bihdāsht-i Muḥīṭ
Background: This study aims to investigate the dispersion of pollutant gases emitted from the Sahand thermal power plant's chimney and determine the maximum concentration of these pollutants in the surrounding areas.
Mahdi Saghafi, Fatemeh Hosseinpour
doaj  

The Relationship between Nitrogen Dioxide Concentrations in the Atmosphere Measured by the Sodium Arsenite Method and the Chemiluminescence Method [PDF]

open access: yesSuan Sunandha Rajabhat University Journal of Science and Technology, 2015
The relationship between the nitrogen dioxide concentration measured by the Sodium Arsenite method and the Chemiluminescence method, aimed at developing a device for measuring nitrogen dioxide in the atmosphere by means of the Sodium Arsenite method ...
Sivapan Choo-in, Rajeev K. Mishra
doaj  

Seasonal variation of air pollution in Warsaw conurbation

open access: yesMeteorologische Zeitschrift, 2014
Long term research shows many substances in the atmosphere are in concentration dangerous for human health and welfare and even for human life. The work presents time and spatial variation of tropospheric ozone and nitrogen dioxide concentrations ...
Katarzyna Rozbicka   +2 more
doaj   +1 more source

Comparative simulation research on the stress characteristics of supercritical carbon dioxide jets, nitrogen jets and water jets

open access: yesEngineering Applications of Computational Fluid Mechanics, 2017
In previous studies it has been shown that supercritical carbon dioxide (SC-CO2) jets are more efficient at rock breaking than water jets, but the corresponding systematic mechanism explanations were not available.
Mukun Li   +3 more
doaj   +1 more source

A sensitive spectrophotometric determination of nitrogen dioxide in the working atmosphere

open access: yesBulletin of the Chemical Society of Ethiopia, 2009
In the present investigation, a simple and sensitive spectrophotometric method for the determination of nitrogen dioxide in various environmental samples is described. Nitrogen dioxide in air was fixed as nitrite ion in alkaline sodium arsenite absorbing
Prachi Parmar   +2 more
doaj  

Analysis and Forecasting of Air Pollution on Nitrogen Dioxide and Sulfur Dioxide Using Deep Learning

open access: yesIEEE Access
When Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2) mix, they cause pulmonary fibrosis, and severe public health issues. Therefore, introducing deep learning models to predict changes in Nitrogen Dioxide and Sulfur Dioxide air pollution can enable the ...
Cheng-Hong Yang   +3 more
doaj   +1 more source

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