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In respiratory physiology, the ventilation/perfusion ratio (V/Q ratio) is a ratio used to assess the efficiency and adequacy of the ventilation-perfusion coupling and thus the matching of two variables: The V/Q ratio can therefore be defined as the ratio of the amount of air reaching the alveoli per minute to the amount of blood reaching the ...
The V/Q ratio in the apex is roughly 3.3 and 0.63 in the base, which indicates that perfusion is greater than ventilation towards the base, and the ventilation rate is greater than perfusion towards the apex. [3] Towards the base of the lungs, the fluid volume in the pleural cavity increases due to gravity, resulting in greater intrapleural ...
Mazda claimed to have solved the apex seal problem, operating test engines at high speed for 300 hours without failure. [11] After years of development, Mazda's first rotary engine car was the 1967 Cosmo 110S. The company followed with several Wankel ("rotary" in the company's terminology) vehicles, including a bus and a pickup truck. Customers ...
A hydraulic tappet, also known as a hydraulic valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. Conventional solid valve lifters require regular adjusting to maintain a small clearance between the valve and its rocker or cam follower. This space prevents the parts from ...
Choked flow is a compressible flow effect. The parameter that becomes "choked" or "limited" is the fluid velocity. Choked flow is a fluid dynamic condition associated with the Venturi effect. When a flowing fluid at a given pressure and temperature passes through a constriction (such as the throat of a convergent-divergent nozzle or a valve in ...
Associated equipment includes fracturing tanks, one or more units for storage and handling of proppant, high-pressure treating iron [clarification needed], a chemical additive unit (used to accurately monitor chemical addition), fracking hose (low-pressure flexible hoses), and many gauges and meters for flow rate, fluid density, and treating ...
Deloitte predicts that the share of theatrical box office revenues from video game intellectual property (IP) will double by 2025. Additionally, most major video streaming platforms are expected to include shows based on popular games. [166] Another report by GlobalData suggests that the video games market could become a $300 billion industry ...
Apex Legends is a free-to-play battle royale - hero shooter game developed by Respawn Entertainment and published by Electronic Arts. It was released for PlayStation 4, Windows, and Xbox One in February 2019, for Nintendo Switch in March 2021, and for PlayStation 5 and Xbox Series X/S in March 2022. A mobile version of the game designed for ...