Results 31 to 40 of about 221,487 (372)

Data Fusion of Contact Sensors for Soft Actuator Angle Measurement [PDF]

open access: yesJisuanji gongcheng, 2021
The existing contact sensors for soft actuator angle measurement mainly include inertial sensors and curvature sensors. However, the measurement accuracy of inertial sensors is easily affected by the expansion of the airway embedded in the soft actuators,
LIU Yanhong, DOU Yuanlin, REN Haichuan, CAO Guizhou
doaj   +1 more source

Heat and Mass Transfer Processes and Evaporation of a Liquid Droplet on a Structured Surface

open access: yesEnergies, 2023
The characteristics of water droplet heating and evaporation on structured hydrophobic and hydrophilic surfaces in the range of static contact angles from 73° to 155° were studied experimentally using high-speed video recording.
Dmitrii V. Antonov   +2 more
doaj   +1 more source

Coalescence-induced jumping of droplets from superhydrophobic surfaces - the effect of contact-angle hysteresis

open access: yesThe Physics of Fluids, 2022
Droplets coalesce and jump from superhydrophobic surfaces, a result that stems from the dominance of capillary and inertial forces and the presence of high contact angles.
K. Konstantinidis   +3 more
semanticscholar   +1 more source

Surface mobility and structural transitions of poly(n-alkyl methacrylates) probed by dynamic contact angle measurements [PDF]

open access: yes, 1986
Dynamic contact angles and contact-angle hysteresis of a series of poly(n-alkyl methacrylates) (PAMA) were investigated using the Wilhelmy plate technique.
Damme, H.S. van, Feijen, J., Hogt, A.H.
core   +9 more sources

Modeling the deformation and breakup of a surfactant-coated droplet on a roughness solid surface in shear flow

open access: yesAIP Advances, 2022
A surfactant-coated droplet attached to a rough wall subjected to shear flow is investigated using a coupled lattice Boltzmann with the finite difference method, where a contact angle hysteresis model is introduced into the method to characterize the ...
Dapeng Deng   +3 more
doaj   +1 more source

Theoretical analysis for dynamic contact angle hysteresis on chemically patterned surfaces [PDF]

open access: yesThe Physics of Fluids, 2020
A dynamic wetting problem is studied for a moving thin fiber inserted in fluid and with a chemically inhomogeneous surface. A reduced model is derived for contact angle hysteresis by using the Onsager principle as an approximation tool.
Xianmin Xu, Xiaoping Wang
semanticscholar   +1 more source

Determination of the hysteresis of the contact angle of wetting of boiling surfaces [PDF]

open access: yesE3S Web of Conferences, 2023
For a deeper understanding of the fluid dynamics and heat transfer in the transition layer, when studying the dynamics of a two-phase flow during boiling and a heat transfer crisis, i.e.
Bykovskaya Elena F.   +1 more
doaj   +1 more source

The Possibility of Changing the Wettability of Material Surface by Adjusting Gravity

open access: yesResearch, 2020
The contact angle, as a vital measured parameter of wettability of material surface, has long been in dispute whether it is affected by gravity. Herein, we measured the advancing and receding contact angles on extremely low contact angle hysteresis ...
Yong-Ming Liu   +14 more
doaj   +1 more source

Development of a Contact Force Model Suited for Spherical Contact Event

open access: yesActuators, 2023
The stiffness coefficient suited for a spherical contact body is developed by means of a contact semi-angle based on Steuermann’s theory. The new static contact force model is close to the results of FEM when the index of the polynomial is equal to 2 ...
Siyuan Wang, Peng Gao
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

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