Results 21 to 30 of about 84,000 (298)

Observation of contact angle hysteresis due to inhomogeneous electric fields

open access: yesCommunications Physics, 2021
Wetting of surfaces can be affected by surface roughness, presence of surface chemical defects, or by electric fields. Here, the authors perform electrowetting experiments on microstriped electrodes and show that the droplet’s static contact angle ...
Wei Wang   +3 more
doaj   +1 more source

Surface-Wetting Characteristics of DLP-Based 3D Printing Outcomes under Various Printing Conditions for Microfluidic Device Fabrication

open access: yesMicromachines, 2023
In recent times, the utilization of three-dimensional (3D) printing technology, particularly a variant using digital light processing (DLP), has gained increasing fascination in the realm of microfluidic research because it has proven advantageous and ...
Jeon-Woong Kang   +4 more
doaj   +1 more source

Effect of contact angle hysteresis on thermocapillary droplet actuation [PDF]

open access: yes, 2005
Open microfluidic devices based on actuation techniques such as electrowetting, dielectrophoresis, or thermocapillary stresses require controlled motion of small liquid droplets on the surface of glass or silicon substrates.
Chen, Jian Z.   +3 more
core   +1 more source

Studying of the Contact Angle Hysteresis on Various Surfaces

open access: yesMATEC Web of Conferences, 2016
This paper is devoted to investigation of the contact angle hysteresis on various surfaces. It was carried out by two different methods: measuring the advancing and the receding contact angles and measuring the contact angles at water droplet evaporation
Kirichenko E. O., Gatapova E. Ya.
doaj   +1 more source

The Role of Contact Angle Hysteresis for Fluid Transport in Wet Granular Matter [PDF]

open access: yes, 2015
The stability of sand castles is determined by the structure of wet granulates. Experimental data about the size distribution of fluid pockets are ambiguous about their origin.
Brinkmann, Martin   +5 more
core   +2 more sources

Lattice Boltzmann modeling of contact angle and its hysteresis in two-phase flow with large viscosity difference [PDF]

open access: yes, 2015
Contact angle hysteresis is an important physical phenomenon omnipresent in nature and various industrial processes, but its effects are not considered in many existing multiphase flow simulations due to modeling complexity.
Ju, Yaping   +4 more
core   +1 more source

Finite element study of displacement controlled fretting in cylinder contact with different axis crossing angles

open access: yesAdvances in Mechanical Engineering, 2022
There is inevitably an angular offset during contact of mechanical structures such as roller bearings or gears. Most of the previous contact models involve the contact between two parallel cylinders.
Tieneng Guo, Ruguo Ji, Yunfei Ma
doaj   +1 more source

Water-Repellency and Anisotropic Wettability of Micro-Grooved Polymer Surfaces [PDF]

open access: yes한국정밀공학회지, 2020
Superhydrophobicity and anisotropic wettability can be simultaneously achieved by simple groove pattern on a surface. To verify those characteristics experimentally, we fabricated the micro-grooved surfaces with four different groove widths.
Daehee Kwon, Unyoung Ko, Sangmin Lee
doaj   +1 more source

Plastron induced drag reduction and increased slip on a superhydrophobic sphere [PDF]

open access: yes, 2011
On low contact angle hysteresis superhydrophobic surfaces, droplets of water roll easily. It is intuitively appealing, but less obvious, that when such material is immersed in water, the liquid will flow more easily across its surface.
Balmert   +42 more
core   +1 more source

Driving Scheme Optimization for Electrowetting Displays Based on Contact Angle Hysteresis to Achieve Precise Gray-Scales

open access: yesFrontiers in Physics, 2021
As a new display technology, electrowetting display (EWD) has many excellent display characteristics, such as paper-like, low power consumption, quick response and full color.
Li Wang   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy