Results 21 to 30 of about 275,641 (304)
Chronic airflow obstruction [PDF]
Postgraduate Medical Journal, 1984 Chronic airflow obstruction (CAO) affects at least half a million people (Royal College of Physicians, 1981) in this country and will continue to be a major cause of morbidity and early death for many years to come. Even if cigarette smoking stopped today its legacy in CAO would continue beyond the end of the century. While acute respiratory infections,
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Diffusion of aerosol pollution in residential bathroom under different air distribution [PDF]
E3S Web of Conferences, 2022 In this study, based on the numerical simulation, we investigated aerosol pollution diffusion in residential bathroom with exhaust vents at different positions and different ventilation methods.
Ding Baoying +4 more
doaj +1 more source
Defining Airflow Obstruction [PDF]
Chronic Obstructive Pulmonary Diseases: Journal of the COPD Foundation, 2016 Airflow obstruction has been defined using spirometric test results when the forced expiratory volume in 1 second (FEV1) to forced vital capacity (FVC) ratio is below a fixed cutoff (
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Aerodynamic Analysis and Noise-Reducing Design of an Outside Rear View Mirror
Applied Sciences, 2018 The outside rear view mirror (OSRVM) is installed on the exterior of vehicles to secure the side and rear views of the vehicle, but its extruded design causes unwanted aerodynamic noise and vibration during driving.
Yong-Ju Chu +2 more
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ANALYSIS OF FIELD TEST RESULTS FOR THE OIL SHALE MINE VENTILATION SIMULATION; pp. 356–364 [PDF]
Oil Shale, 2018 Analysis of the field test results for inputs to the ventilation simulaÂtion model was performed in the conditions of an operational oil shale mine in Estonia.
Sergei Sabanov
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New Spirometry Indices for Detecting Mild Airflow Obstruction. [PDF]
, 2018 The diagnosis of chronic obstructive pulmonary disease (COPD) relies on demonstration of airflow obstruction. Traditional spirometric indices miss a number of subjects with respiratory symptoms or structural lung disease on imaging.
Barjaktarevic, Igor +13 more
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Frontiers in Veterinary ScienceFlowgy is a semi-automated tool designed to simulate airflow across the nasal passage and detect airflow alterations in humans. In this study, we tested the use and accuracy of Flowgy in non-human vertebrates, using large felids as the study group ...
Manuel Burgos +5 more
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环境与职业医学BackgroundDiesel engines are widely used in transportation, agriculture, construction, industry, and other fields. Diesel exhaust, classified as a Group 1 carcinogen, emits particles (DEP) that can penetrate deep into the respiratory tract, posing ...
Zheyu HUANG +7 more
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Model construction and validation of airflow velocity attenuation through pear tree canopies
Frontiers in Plant Science, 2022 To investigate the airflow velocity attenuation inside pear tree canopies and the factors that influence its effect on air-assisted spraying, the relationship between the resistance of the canopies to airflow and airflow velocity inside the canopies was ...
Fubin Zhang +5 more
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Cost effective combined axial fan and throttling valve control of ventilation rate [PDF]
, 2004 This paper is concerned with Proportional-Integral-Plus (PIP) control of ventilation rate in mechanically ventilated agricultural buildings. In particular, it develops a unique fan and throttling valve control system for a 22m3 test chamber, representing
Berckmans, D. +5 more
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