Results 21 to 30 of about 323,472 (312)

Analyses and prevention of coal spontaneous combustion risk in gobs of coal mine during withdrawal period

open access: yesGeomatics, Natural Hazards & Risk, 2019
Coal spontaneous combustion (CSC) in gob causes notorious safety issues to workers, especially during withdrawal period. Withdrawal period was normally divided into three stages (initial stage, expanding back channel stage and equipment returning stage ...
Wan-Xing Ren, Qing Guo, Hui-Hui Yang
doaj   +1 more source

Numerical Simulation of Airborne Disease Spread in Cage-Free Hen Housing with Multiple Ventilation Options

open access: yesAnimals, 2022
The current ventilation designs of poultry barns have been present deficiencies with respect to the capacity to protect against disease exposure, especially during epidemic events. An evolution of ventilation options is needed in the egg industry to keep
Long Chen   +4 more
doaj   +1 more source

Natural ventilation for the prevention of airborne contagion. [PDF]

open access: yes, 2007
BACKGROUND: Institutional transmission of airborne infections such as tuberculosis (TB) is an important public health problem, especially in resource-limited settings where protective measures such as negative-pressure isolation rooms are difficult to ...
Navincopa, Marcos   +35 more
core   +1 more source

Four Truths of Mechanical Ventilation and the Ten-Fold Path to Enlightenment

open access: yes, 2021
: The Four Truths 1. The truth of confusion 2. The truth of the origin of confusion 3. The truth of the cessation of confusion 4. The truth of the path leading to the cessation of confusion The 10-Fold Path 1.
Chatburn, Robert, Robert L. Chatburn
core   +1 more source

Machine Learning Techniques to Model and Predict Airflow Requirements in Underground Mining

open access: yesMaterials Proceedings, 2023
This paper analyzes the airflow requirements of underground operations and the accurate assessment of future conditions so as to effectively adjust ventilation parameters.
Maria Karagianni, Andreas Benardos
doaj   +1 more source

Effect of Indoor Green Walls on Environment Perception and Well-Being of Occupants in Office Buildings

open access: yesEnergies
Office employees often face discomfort due to dry air, impacting their productivity. Existing solutions like standalone humidifiers or HVAC-integrated systems are either inefficient or costly.
Aleksandra Lipczynska   +2 more
doaj   +1 more source

Analysis method of mine ventilation difficulty degree based on ventilation equivalent area

open access: yesGong-kuang zidonghua, 2020
In view of problems that equivalent orifice commonly used in current mine ventilation difficulty degree evaluation cannot effectively reflect details of ventilation difficulty degree, and ventilation resistance measurement cannot well measure effect of ...
WANG Yanping   +5 more
doaj   +1 more source

Optimisation of Heat Loss through Ventilation for Residential Buildings

open access: yesAtmosphere, 2018
This study presents the results of research on heat loss from various types of residential buildings through ventilation systems. Experimental research was done to analyse the effectiveness of ventilation systems of different types and determine the ...
Dariusz Suszanowicz
doaj   +1 more source

Ventilation System Design and the Coronavirus (COVID-19)

open access: yesFrontiers in Built Environment, 2021
Most new office buildings in Nordic countries are equipped with balanced mechanical ventilation systems. The purpose of ventilation in office buildings is to provide thermal control by supplying cold or warm air for adequate indoor air quality.
Alireza Afshari   +3 more
doaj   +1 more source

Correlation between germ and particle measurements for the qualification of ventilation systems in the OR

open access: yesCurrent Directions in Biomedical Engineering, 2017
Healthcare associated infections in surgical procedures have long been the focus of scientific research. In Germany, more than 225,000 patients suffer from such infections each year [1].
Bulitta Clemens   +2 more
doaj   +1 more source

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