Results 1 to 10 of about 5,612,666 (297)
Research on decoupled air speed and air volume adjustment methods for air-assisted spraying in orchards [PDF]
Frontiers in Plant Science, 2023 Different fruit tree canopies have different requirements for air speed and air volume. Due to the strong relationship between air speed and air volume, the decoupled control of air speed and air volume cannot be achieved using the existing sprayers.
Hanjie Dou +9 more
doaj +3 more sources
Measuring Device for Air Speed in Macroporous Media and Its Application Inside Apple Storage Bins [PDF]
Sensors, 2018 In cold storage facilities of fruit and vegetables, airflow is necessary for heat removal. The design of storage facilities influences the air speed in the surrounding of the product. Therefore, knowledge about airflow next to the product is important to
Martin Geyer +6 more
doaj +3 more sources
Buildings, 2022 Natural ventilation associated with a mechanical fan is a feasible strategy to enhance thermal acceptability in warm weather. The ASHRAE-55 provides the increase for operative temperature proportional to the increase in air speed while maintaining ...
Luciano Caruggi de Faria +4 more
doaj +2 more sources
Air speed and velocity measurements in a room with a sidewall jet. [PDF]
Data Brief, 2015 In mixing ventilation systems, diffusers are often located on side walls and supply quasi-free air jets above the occupied zone. The data presented in this paper shows a new CFD 3D benchmark with two well-defined characteristic zones in the room, i.e ...
Hurnik M, Blaszczok M, Popiolek Z.
europepmc +2 more sources
Detailed measured air speed distribution in four commercial buildings with ceiling fans
Building and Environment, 2021 The layout of ceiling fans in buildings is challenging because of the need to co-ordinate with other elements in the ceiling space, and because the resulting airflows within the occupied space interact with furniture.
Edward Arens +2 more
exaly +2 more sources
Exploring the roles of high-speed train, air and coach services in the spread of COVID-19 in China
Transport Policy, 2020 To understand the roles of different transport modes in the spread of COVID-19 pandemic across Chinese cities, this paper looks at the factors influencing the number of imported cases from Wuhan and the spread speed and pattern of the pandemic.
Anming Zhang, Jiaoe Wang, Yahua Zhang
exaly +2 more sources
Numerical simulation of a hot-air cleaning fan for the combine harvester. [PDF]
PLoS ONEThis study aimed to improve the separation efficiency of damp crops by developing a hot-air cleaning fan. First, the aerodynamic performance of two fans with different inlet structures was compared.
Tao Zhang, Guoliang You, Yaoming Li
doaj +2 more sources
Summary of Active Mixing Enhancement Technology for Scramjet [PDF]
Hangkong bingqi, 2023 Fuel mixing and enhancement is the key technology of modern scramjet engine. In view of the problem of how to fully mix fuel, researchers have developed a variety of mixing enhancement technologies, which are mainly divided into active and passive types.
Wang Wenlong, Gai Zilin, Ma Cenrui, Wang Hongyu
doaj +1 more source
Horticulturae, 2022 This study investigates and quantifies the integrative effects of CO2 concentration (500, 1000 and 1500 µmol mol−1), illumination intensity (100, 200 and 300 μmol m−2 s−1) and air speed (0.25, 0.50 and 0.75 m s−1) on the growth, gas exchange and light ...
H. A. Ahmed +5 more
semanticscholar +1 more source