Results 11 to 20 of about 626,371 (315)

Evaluation of Actual Ventilation Rates and Efficiency in Research-Scale Pig Houses Based on Ventilation Configurations

open access: yesAnimals, 2023
Accurate ventilation control is crucial for maintaining a healthy and productive environment in research-specialized pig facilities. This study aimed to evaluate actual ventilation rates and ventilation efficiency by investigating different inlet and ...
Se-yeon Lee   +6 more
doaj   +1 more source

A New Method for Determining Outdoor Humidity Ratio of Natatorium in Transition Season

open access: yesEnergies, 2023
The natatorium’s ventilation problem receives much concern because of its large wet load. The outdoor humidity ratio in transition season is the basic design parameter of the ventilation calculation, directly affecting the rationality of architectural ...
Jiaxiang Lei   +3 more
doaj   +1 more source

Increased Natural Ventilation Flow Rates through Ventilation Shafts [PDF]

open access: yesInternational Journal of Ventilation, 2013
AbstractBuoyancy-driven natural ventilation in ventilation shafts is investigated with a small scale physical experiment within a duct and CFD simulations of an office building. For a fixed exhaust opening, smaller shafts lead to higher flow rates in upper floors of a multi-storey building with a shared ventilation shaft.
Ray, Stephen D., Glicksman, Leon R.
openaire   +2 more sources

Retention of mouth-to-mouth, mouth-to-mask and mouth-to-face shield ventilation [PDF]

open access: yes, 2008
Background: Retention of mouth-to-mouth, mouth-to-mask and mouth-to-face shield ventilation techniques is poorly understood.Methods: A prospective randomised clinical trial was undertaken in January 2004 in 70 candidates randomly assigned to training in ...
Beikircher, W.   +8 more
core   +1 more source

It’s In The Bag: Tidal Volumes in Adult and Pediatric Bag Valve Masks [PDF]

open access: yes, 2020
Introduction: A bag valve mask (BVM) is a life saving device used by all levels of health care professionals during resuscitative care. We focus most of our time optimizing the patient’s position, firmly securing the mask, and frequency of ventilations ...
Dafilou, Benjamin   +3 more
core   +2 more sources

Inhaled particle counts on bicycle commute routes of low and high proximity to motorised traffic [PDF]

open access: yes, 2012
Frequent exposure to ultrafine particles (UFP) is associated with detrimental effects on cardiopulmonary function and health. UFP dose and therefore the associated health risk are a factor of exposure frequency, duration, and magnitude of (therefore also
Cole-Hunter, Thomas   +4 more
core   +2 more sources

NDIR Gas Sensor for Spatial Monitoring of Carbon Dioxide Concentrations in Naturally Ventilated Livestock Buildings

open access: yesSensors, 2015
The tracer gas ratio method, using CO2 as natural tracer, has been suggested as a pragmatic option to measure emissions from naturally ventilated (NV) barns without the need to directly estimate the ventilation rate.
Luciano B. Mendes   +5 more
doaj   +1 more source

Revising the Impact and Prospects of Activity and Ventilation Rate Bio-Loggers for Tracking Welfare and Fish-Environment Interactions in Salmonids and Mediterranean Farmed Fish

open access: yesFrontiers in Marine Science, 2022
Behavioral parameters are reliable and useful operational welfare indicators that yield information on fish health and welfare status in aquaculture. However, aquatic environment is still constraining for some solutions based on underwater cameras or ...
Josep Calduch-Giner   +14 more
doaj   +1 more source

Evaluating single-sided natural ventilation models against full-scale idealised measurements: impact of wind direction and turbulence [PDF]

open access: yes, 2020
Commonly single-sided natural ventilation is used in temperate climates to provide comfortable and healthy indoor environments. However, within built-up areas it is difficult to predict natural ventilation rates for buildings as they depend on many flow ...
Barlow, J. F.   +5 more
core   +3 more sources

Ventilation Rate and Thermal Environment Properties of Double Skin Façade Considering Wind Profile and Direction

open access: yesJournal of Asian Architecture and Building Engineering, 2017
This study analyzes the impact of a windy environment on the ventilation rate and the thermal environment of a double skin façade (DSF). The wind profile was used to change the direction of the wind to the front, back, and side directions.
Geum-Hee Kim   +2 more
doaj   +1 more source

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