How robust is the ring stain for evaporating suspension droplets? [PDF]
, 2013 The ring stain is commonly seen when droplets containing particles, such as coffee, are left to dry on a surface: a pinned contact line leads to outward radial flow, which is enhanced by the diverging evaporative flux at the contact line.
Fairhurst, DJ, Msambwa, Y, Ouali, FF
core +1 more source
Design of Plant Protection UAV Variable Spray System Based on Neural Networks
Sensors, 2019 Recently, unmanned aerial vehicles (UAVs) have rapidly emerged as a new technology in the fields of plant protection and pest control in China. Based on existing variable spray research, a plant protection UAV variable spray system integrating neural ...
Sheng Wen +5 more
doaj +1 more source
Programmable droplet manipulation enabled by charged‐surface pattern reconfiguration
Droplet, 2023 Programmable droplet manipulation based on external stimulation is in high demand in various modern technologies. Despite notable progress, current manipulation strategies still suffer from a common drawback such as single control means of modulating the
Duokui Fang +6 more
doaj +1 more source
Compound redistribution due to droplet evaporation on a thin polymeric film: theory [PDF]
, 2019 A thin polymeric film in contact with a fluid body may leach low-molecular-weight compounds into the fluid. If this fluid is a small droplet, the compound concentration within the liquid increases due to ongoing leaching in combination with the ...
Anton A. Darhuber +4 more
core +2 more sources
Movement Characteristics of Droplet Deposition in Flat Spray Nozzle for Agricultural UAVs
AgricultureAt present, research on aerial spraying operations with UAVs mainly focuses on the deposition outcomes of droplets, with insufficient depth in the exploration of the movement process of droplet deposition.
Shiyun Hu +7 more
doaj +1 more source
Triple condensate halo from water droplets impacting on cold surfaces
, 2018 Understanding the dynamics in the deposition of water droplets onto solid surfaces is of importance from both fundamental and practical viewpoints. While the deposition of a water droplet onto a heated surface is extensively studied, the characteristics ...
Jin, Liwen +5 more
core +1 more source
Regional deposition of inhaled fog droplets: preliminary observations. [PDF]
Environmental Health Perspectives, 1989 The regional deposition of a monodisperse 10-micron mass median aerodynamic diameter fog was studied in four healthy adult male nonsmokers. The fog was radiolabeled with technetium-99m sulfur colloid to enable detection by an Anger camera of deposited activity in the following regions of the respiratory tract: oropharynx, larynx, trachea, and ...
S M, Bowes +3 more
openaire +3 more sources
Behavior of self-propelled acetone droplets in a Leidenfrost state on liquid substrates [PDF]
, 2017 It is demonstrated that non-coalescent droplets of acetone can be formed on liquid substrates. The fluid flows around and in an acetone droplet hovering on water are recorded to shed light on the mechanisms which might lead to non-coalescence.
Eliot Fried +4 more
core +3 more sources
Electrostatic spray and non-electrostatic spray on droplet deposition quality on tomato leaf surface [PDF]
Ciência Rural: Electrostatic spraying reduces the pesticide loss and environmental pollution caused by droplet drift, reduces the health risk of workers in the process of spraying, and has positive significance for agricultural sustainable development.
Jili Guo +4 more
doaj +1 more source
Effects of technical operation parameters on spray characteristics of rotor plant protection UAV [PDF]
智慧农业, 2019 High-quality operation of plant protection UAV is the premise of precision operation in agricultural aviation, so it is particularly important to study the characteristics of spray system.
Zhu Hang, Li Hongze, Huang Yu, Yu Haitao, Dong Yunzhe, Li Junxing
doaj +1 more source