Results 31 to 40 of about 867,533 (280)

Closed-Loop Control of Droplet Transfer in Electron-Beam Freeform Fabrication

open access: yesSensors, 2020
In the process of electron-beam freeform fabrication deposition, the surface of the deposit layer becomes rough because of the instability of the feeding wire and the changing of the thermal diffusion condition.
Shuhe Chang   +6 more
doaj   +1 more source

Research on deposition effect of droplets based on plant protection unmanned aerial vehicle: A review

open access: yes浙江大学学报. 农业与生命科学版, 2018
In the process of agricultural sustainable development, diseases and insect pests have always been the focus of attention. Due to the flexibility and convenience, unmanned aerial vehicle (UAV) spray has attracted wide attention in the field of plant ...
HE Yong   +5 more
doaj   +1 more source

Design of Plant Protection UAV Variable Spray System Based on Neural Networks

open access: yesSensors, 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

Effect of gravity on the spreading of a droplet deposited by liquid needle deposition technique

open access: yesnpj Microgravity, 2023
AbstractThis study represents an experimental investigation, complemented with a mathematical model, to decipher the effect of gravity on the spreading dynamics of a water droplet. For the theoretical discussion, an overall energy balance approach is adopted to explain the droplet spreading under both microgravity (μg) and terrestrial gravity condition.
Baldygin, Aleksey   +11 more
openaire   +4 more sources

Lattice Boltzmann simulation of droplet generation in a microfluidic cross-junction [PDF]

open access: yes, 2011
Using the lattice Boltzmann multiphase model, numerical simulations have been performed to understand the dynamics of droplet formation in a microfluidic cross-junction.
Zhang, Yonghao, Liu, Haihu
core   +4 more sources

Programmable droplet manipulation enabled by charged‐surface pattern reconfiguration

open access: yesDroplet, 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

Deposition and drying dynamics of liquid crystal droplets [PDF]

open access: yesNature Communications, 2017
AbstractDrop drying and deposition phenomena reveal a rich interplay of fundamental science and engineering, give rise to fascinating everyday effects (coffee rings), and influence technologies ranging from printing to genotyping. Here we investigate evaporation dynamics, morphology, and deposition patterns of drying lyotropic chromonic liquid crystal ...
Zoey S. Davidson   +8 more
openaire   +4 more sources

Phase-field modeling droplet dynamics with soluble surfactants [PDF]

open access: yes, 2010
Using lattice Boltzmann approach, a phase-field model is proposed for simulating droplet motion with soluble surfactants. The model can recover the Langmuir and Frumkin adsorption isotherms in equilibrium.
Zhang, Y.H., Liu, H.
core   +4 more sources

A Study on Dust Dry Deposition: Wind-tunnel Experiment and Improved Parameterization [PDF]

open access: yes, 2013
Dust deposition is a key component of the dust cycle in the Earth system. The lack of understanding for the mechanisms of dust deposition has been a major bottle neck to the development of the dust-related research field.
Zhang, Jie
core   +1 more source

Droplet impact on a thin fluid layer [PDF]

open access: yes, 2005
The initial stages of high-velocity droplet impact on a shallow water layer are described, with special emphasis given to the spray jet mechanics. Four stages of impact are delineated, with appropriate scalings, and the successively more important ...
Purvis, R   +12 more
core   +1 more source

Home - About - Disclaimer - Privacy