Results 21 to 30 of about 212,283 (167)

Numerical Simulation of Falling Film Flow in Vertical Channel

open access: yesZhileng xuebao, 2017
Falling-film evaporation is an efficient heat-transfer technology. The average film thickness is an important factor that affects the heat-transfer performance.
万智华, 厉彦忠, 陈宏振
doaj  

Multiparameter Determination of Thin Liquid Urea-Water Films

open access: yesApplied Sciences, 2021
In this work, wavelengths were determined for the robust and simultaneous measurement of film thickness, urea concentration and fluid temperature. Film parameters such as film thickness, film temperature and the composition of the film are typically ...
Sani van der Kley   +4 more
doaj   +1 more source

Research of the Influence of Solid Particle on Elastohydrodynamic Lubrication of Spur Gear under Oscillation Condition

open access: yesJixie chuandong, 2015
Considering solid particle,the elastohydrodynamic lubrication model of spur gear under oscillation condition is set up. The influences of solid particle on elastohydrodynamic lubrication of spur gear under sine law oscillation condition are studied ...
Huang Xingbao   +3 more
doaj  

Prediction and verification of thin liquid film thickness on salt-deposited copper surface in an atmospheric hygrothermal environment

open access: yesCorrosion Communications
This study used laser spectroscopy testing technology and independently constructed a testing apparatus to achieve stable measurements of the adsorbed liquid film thickness on copper surfaces. The apparatus measurement accuracy reached 91.7%.
Rongdie Zhu   +4 more
doaj   +1 more source

Selective Growth of Homo-Epitaxial Ag-Nano-Layer on Tribo-Assisted-Reorientation

open access: yesTribology Online, 2008
The growth process and orientational degree of incremental-Ag films with a thickness of 5, 50 and 500 nm, respectively, on reoriented Ag (111) surface were studied by in-situ reflection high-energy electron diffraction (RHEED).
Minoru Goto   +2 more
doaj   +1 more source

An attempt to estimate liquid film thickness adhered on wall surface using ultrasonic method

open access: yesNihon Kikai Gakkai ronbunshu
In order to estimate the thickness of adhered thin liquid film on lubricating surface using ultrasonic method, a synthetic wave of reflected waves at the solid-liquid interface and multiple reflected waves in the thin liquid film was calculated and the ...
Sosho INAGAKI   +2 more
doaj   +1 more source

Effect of Thickness on the Structural Properties of Tellurium Film Prepared by Thermal Evaporation [PDF]

open access: yesJournal of Nanostructures, 2013
In this research, tellurium (Te) film with thicknesses of 100-250 nm were deposited on ceramic substrates by thermal evaporation at 373 K. The thickness of the film was determined by Rutherford backscattering spectroscopy.
M. Manouchehrian   +2 more
doaj   +1 more source

Study on Tribological Characteristics of Textured Surface under Convergent Oil Film Gap

open access: yesLubricants, 2022
Under the condition of convergence, a textured non-parallel 2D slider bearing model was established, and the tribological properties of textured surface under the convergence gap were numerically studied with the load-carrying capacity as an indicator ...
Guangyao Bei   +4 more
doaj   +1 more source

Grease Film Behavior in Ball Bearings

open access: yesLubricants
To the film thicknesses of grease-lubricated ball bearings, the viscosity of the base oil is considered in the Elastohydrodynamic Lubrication (EHL) equations. For very low speeds, the grease film thickness is much larger than the calculated base oil film
Denis Cojocaru   +4 more
doaj   +1 more source

Thickness Dependence of Ferroelectric and Optical Properties in Pb(Zr0.53Ti0.47)O3 Thin Films

open access: yesSensors, 2019
As a promising functional material, ferroelectric Pb(ZrxTi1−x)O3 (PZT) are widely used in many optical and electronic devices. Remarkably, as the film thickness decreases, the materials’ properties deviate gradually from those of solid ...
Jian He   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy