Results 31 to 40 of about 1,709,556 (238)

Impact of the surface roughness on the electrical capacitance [PDF]

open access: yes, 2006
A new hybrid approach consists to use the advantages of both systems namely the high geometric aspects of the electrodes of the ultracapacitor and the high dielectric strength of polymer materials used in dielectric capacitors.
Flahaut, Emmanuel   +6 more
core   +1 more source

Thermo hydraulic performance of solar air duct having triangular protrusions as roughness geometry

open access: yesJournal of Thermal Engineering, 2015
An experimental investigation has been carried out for a range of system and operating parameters in order to analyze effect of artificial roughness on heat transfer and friction in solar air heater duct having triangular protrusions as roughness ...
Jasjeevan Singh
doaj   +1 more source

Surface morphology in engineering applications: Influence of roughness on sliding and wear in dry fretting [PDF]

open access: yes, 2011
Influence of initial surface roughness on friction and wear processes under fretting conditions was investigated experimentally. Rough surfaces (Ra=0.15-2.52 [mu]m) were prepared on two materials: carbon alloy (AISI 1034) and titanium alloy (Ti-6Al-4V ...
Mathia, T.G.   +8 more
core   +1 more source

In vitro study of white spot lesion: Maxilla and mandibular teeth

open access: yesSaudi Dental Journal, 2018
Aim: The aim of the study was to evaluate the effect of resin infiltration on colour changes and surface roughness of artificial white spot lesions (WSLs) on maxillary and mandibular premolar. Materials and methods: Sixty (60) extracted sound Maxilla (Mx)
Alizae Marny Mohamed   +5 more
doaj   +1 more source

Multi-Scale Surface Roughness Optimization Through Genetic Algorithms

open access: yesFrontiers in Mechanical Engineering, 2020
Artificial intelligence is changing perspectives of industries about manufacturing of components, introducing emerging techniques such as additive manufacturing technologies.
Paolo Cinat, Giorgio Gnecco, Marco Paggi
doaj   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

An experimental study for a single-pass solar air heater integrated with artificial roughness

open access: yesJournal of Thermal Engineering
The utilization of solar air heaters are significant due to its capacity to diminish the reliance on fossil fuel-based power usage, hence mitigating pollution and conserving energy.
Nabaa M. BADER
doaj   +1 more source

Experimental Study on the Effects of Artificial Bed Roughness on Hydraulic Parameters of Saline Density Currents [PDF]

open access: yesعلوم و مهندسی آبیاری, 2014
Turbidity currents are often the main process for the transport and deposition of the sediments in narrow, alpine reservoirs. In this research, 63 experiments were performed to investigate artificial bed roughness effects on the saline density currents ...
Peyman Varjavand   +3 more
doaj  

Optimising the Abrasive Water Jet Cutting of Glass Using Artificial Neural Network and Genetic algorithm [PDF]

open access: yesمجله مدل سازی در مهندسی, 2010
This paper proposes a hybrid approach based on the Artificial Neural network and Genetic algorithm to optimize surface roughness at the abrasive water jet (AWJ) cutting of glass material.
حسین Amirabadi   +3 more
doaj   +1 more source

Multi-scale analysis of the roughness effect on lubricated rough contact [PDF]

open access: yes, 2014
Determining friction is as equally essential as determining the film thickness in the lubricated contact, and is an important research subject. Indeed, reduction of friction in the automotive industry is important for both the minimization of fuel ...
DEMIRCI, Ibrahim
core  

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