Results 31 to 40 of about 916,873 (301)

Energy and thermal comfort performance evaluation of PCM ceiling panels for cooling a renovated office room [PDF]

open access: yesE3S Web of Conferences, 2019
The performance of suspended ceiling panels with phase change materials (PCM) for comfort cooling applications in office rooms was studied. The panel consisted of a metal casing, which encapsulates the PCM.
Quesada Allerhand José   +2 more
doaj   +1 more source

A novel design of dehumidifier system in underground pumped storage power station [PDF]

open access: yesE3S Web of Conferences, 2022
The heavy water condensation problem has led to safety concern for the workers and electrical facilities in the underground pumped storage power station.
Yao Huimin   +3 more
doaj   +1 more source

Experimental investigation of different nozzle designs inside active chilled beams [PDF]

open access: yesE3S Web of Conferences, 2019
The aim of this study is to improve the performance of active chilled beams (ACB) by varying the nozzles cross section geometry. Most of the common ACB today have circular nozzles for the primary air plenum, as they are easy to produce and ensure a good ...
Rohn Max, Mathis Paul, Müller Dirk
doaj   +1 more source

Radon potential, geologic formations, and lung cancer risk

open access: yesPreventive Medicine Reports, 2015
Objective: Exposure to radon is associated with approximately 10% of U.S. lung cancer cases. Geologic rock units have varying concentrations of uranium, producing fluctuating amounts of radon.
Ellen J. Hahn   +6 more
doaj   +1 more source

Passive control of the bed micro-environment by using naturally ventilated mattress [PDF]

open access: yesE3S Web of Conferences, 2019
Proper sleep is of a big importance considering that people spend one third of their lives sleeping. Thermal conditions and indoor air quality have an impact on sleep and thus must be optimized and controlled to enhance sleep quality.
Snášelová Tereza   +2 more
doaj   +1 more source

Characterization of particulate and gaseous pollutants emitted during operation of a desktop 3D printer

open access: yesEnvironment International, 2019
The emission of ultrafine particles (UFP) and gaseous pollutants from 3D printing has been increasingly gaining attention in recent years due to potential health risks.
Jianwei Gu   +3 more
doaj   +1 more source

Multi-country assessment of residual bio-efficacy of insecticides used for indoor residual spraying in malaria control on different surface types: results from program monitoring in 17 PMI/USAID-supported IRS countries

open access: yesParasites & Vectors, 2018
Background Indoor residual spraying (IRS) is the application of insecticide to the interior walls of household structures that often serve as resting sites for mosquito vectors of malaria.
Dereje Dengela   +8 more
doaj   +1 more source

A method for evaluating indoor phthalate exposure levels in collected dust

open access: yesMethodsX, 2021
This paper provides a method for evaluating indoor phthalate exposure levels in collected dust, including dust collection, chemical analysis and quality control.
Yuxuan Zhao   +4 more
doaj   +1 more source

Implementation of a machine learning supported model predictive control for a 5th generation district heating and cooling energy hub

open access: yesEnergy and AI
Fifth-generation district heating and cooling (5GDHC) is a promising technology for supplying low-emission energy to buildings. However, realizing its full potential requires the central energy supply unit to operate optimally.
Kai Droste   +5 more
doaj   +1 more source

Experimental validation of single-sided natural ventilation models on building simulation [PDF]

open access: yesE3S Web of Conferences
In Europe, many office buildings rely on single-sided natural ventilation (SSV), which uses one or several openings on only one side of a room where the air exchange occurs primarily.
Jiang Jun   +3 more
doaj   +1 more source

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