Results 11 to 20 of about 321,393 (268)

Contribution of Airplane Engine Emissions on the Local Air Quality around Stuttgart Airport during and after COVID-19 Lockdown Measures

open access: yesAtmosphere, 2022
Air quality investigations at airports have shown that aircrafts cause a significant increase in air pollution at and around the vicinity of the airport, which can cause adverse effects on human health.
Abdul Samad   +3 more
doaj   +1 more source

Particulate Matter Profiles along the Rack Railway Route Using Low-Cost Sensor

open access: yesAtmosphere, 2021
Air pollution due to Particulate Matter (PM) is an increasing concern of global extent. It has been the focus of many research projects worldwide and the latest low-cost technology is offering an ease and cheap way to monitor PM concentration.
Abdul Samad   +3 more
doaj   +1 more source

How “clean” is the cleaning profession? [PDF]

open access: yesOccupational and Environmental Medicine, 2005
Commentary on the paper by Medina-Ramon et al (see page 598) Based on the assumption that cleanliness equates with healthiness, many people are likely to consider the cleaning profession to be relatively free of health risks. In fact, some cleaning compounds, either alone or mixed, pose a risk for inhalation injuries, and this risk is heightened when ...
openaire   +2 more sources

Concurrent clean [PDF]

open access: yes, 1991
Contains fulltext : 107649.pdf (author's version ) (Open Access)
Nöcker, E.G.J.M.H.   +3 more
openaire   +2 more sources

Baeyer–Villiger co-oxidation of cyclohexanone with Fe–Sn–O catalysts in an O2/benzaldehyde system

open access: yesGreen Processing and Synthesis, 2021
Baeyer–Villiger (BV) oxidation of cyclohexanone to ε-caprolactone was studied by a co-precipitation method using Fe–Sn–O catalysts in an O2/benzaldehyde system.
Sun Jingjing   +8 more
doaj   +1 more source

Numerical Simulation of Section Systems in the Pelamis Wave Energy Converter

open access: yesAdvances in Mechanical Engineering, 2013
The working principle of the Pelamis wave energy converter is described in this paper. The sectional size suitable for the outside sea of Xiamen Bay is redesigned according to the Froude and Strouhal similarity criteria.
Hongzhou He, Quanyou Qu, Juyue Li
doaj   +1 more source

Performance analysis of air curtains on indoor environment and dehumidification energy consumption in a low humidity plant

open access: yesJournal of Asian Architecture and Building Engineering, 2023
The purpose of this study is to evaluate the effect of air curtains on indoor environment and dehumidification energy consumption for different air supply angle and velocity. The numerical investigation is conducted in a low-humidity plant located in the
Yubin Tang, Qiuhua Tao, Jianwen Zheng
doaj   +1 more source

Synthesis of tert-amylbenzene for side-chain alkylation of cumene catalyzed by a solid superbase

open access: yesGreen Processing and Synthesis, 2021
The side-chain alkylation of cumene and ethylene over a solid superbase catalyst K/KOH/γ-Al2O3 is investigated. The effects of the reaction temperature, pressure, and time on the conversion of cumene and selectivity of tert-amylbenzene (TAB) are ...
Zhou Xin   +5 more
doaj   +1 more source

Assessment of Coarse, Fine, and Ultrafine Particles in S-Bahn Trains and Underground Stations in Stuttgart

open access: yesAtmosphere, 2022
The Stuttgart S-Bahn network comprises six subway lines and is used by approximately 425,000 people on a daily basis. In previous studies in other cities, it was found that subways can be a source and collection point of particulate matter (PM), which is
Abdul Samad   +4 more
doaj   +1 more source

Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality

open access: yesSensors, 2021
Air pollution in urban areas is a huge concern that demands an efficient air quality control to ensure health quality standards. The hotspots can be located by increasing spatial distribution of ambient air quality monitoring for which the low-cost ...
Abdul Samad   +3 more
doaj   +1 more source

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