Results 11 to 20 of about 799,315 (265)
Prognostication of Ozone Concentration in the Air [PDF]
Bioautomation, 2007 The relation between the ozone concentration and the meteorological parameters is investigated using a real data. A maximal hourly concentration for a day prognostication method is proposed.
Krastev A. +3 more
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Reducing Indoor Air Formaldehyde Concentrations [PDF]
Journal of the Air Pollution Control Association, 1985 Urea-formaldehyde resin bonded partlcleboard, medium density fiberboard and plywood paneling are used as flooring, wall paneling, for cabinet work and in furniture, and are present In almost every office, home and public building. If large quantities of these products are used In poorly ventilated spaces, high manufacturing quality control is necessary
B, Meyer, K, Hermanns
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Observations on Using Inside Air Concentrations as a Predictor of Outside Air Concentrations
Health Physics, 2015 Excavations of radiological material were performed within confined structures with known operational parameters, such as a filtered exhaust system with known filtration efficiency. Given the known efficiency, the assumption could be made that the air concentrations of radioactivity measured outside the structure would be proportional to the air ...
Gavin, Hawkley +2 more
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Jurnal Fisika Flux, 2017 Abstrak: Nowadays, green house gas was increased which caused air temperature of surface arise, one of them is carbon dioxide (CO2), CO2 is part of green house gas which is strong enough to absorb infrared wave, but if CO2 concentration is too high it ...
Reko Ary Rampan +2 more
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Journal of King Saud University: Engineering Sciences, 2017 Universities are designed for higher education learning, and improving university indoor air quality (IAQ) is essential to the enhanced performances of students and staff members alike.
M. Hussin, M.R. Ismail, M.S. Ahmad
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Measuring Concentrations of Particulate 140La in the Air
Health Physics, 2016 Air sampling systems were deployed to measure the concentration of radioactive material in the air during the Full-Scale Radiological Dispersal Device Field Trials. The air samplers were positioned 100-600 m downwind of the release point. The filters were collected immediately and analyzed in a field laboratory.
Colin E, Okada +5 more
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Estimation of Prediction Error in Regression Air Quality Models
Energies, 2021 Combustion of energy fuels or organic waste is associated with the emission of harmful gases and aerosols into the atmosphere, which strongly affects air quality.
Szymon Hoffman
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Journal of Environmental Engineering and Landscape Management, 2006 Economic operations carried out at Klaipeda State Seaport negatively affect the quality of the ambient air. To assess the atmosphere pollution in northern Klaipeda caused by economic operations at the Port, investigation was carried out from June to ...
Pranas Baltrėnas +2 more
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Air Pollutant Concentration Prediction Based on a CEEMDAN-FE-BiLSTM Model
Atmosphere, 2021 The concentration series of PM2.5 (particulate matter ≤ 2.5 μm) is nonlinear, nonstationary, and noisy, making it difficult to predict accurately.
Xuchu Jiang +3 more
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Air Quality Index and Air Pollutant Concentration Prediction Based on Machine Learning Algorithms
Applied Sciences, 2019 Air pollution has become an important environmental issue in recent decades. Forecasts of air quality play an important role in warning people about and controlling air pollution. We used support vector regression (SVR) and random forest regression (RFR)
Huixiang Liu +3 more
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