Results 31 to 40 of about 12,835 (123)

Eco-efficient process based on conventional machining as an alternative technology to chemical milling of aeronautical metal skin panels [PDF]

open access: yes, 2019
El fresado químico es un proceso diseñado para la reducción de peso de pieles metálicas que, a pesar de los problemas medioambientales asociados, se utiliza en la industria aeronáutica desde los años 50.
Sol Illana, Irene del
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Frustration induced phases in migrating cell clusters [PDF]

open access: yes, 2017
Collective motion of cells is common in many physiological processes, including tissue development, repair, and tumor formation. Recent experiments have shown that certain malignant cancer cells form clusters in a chemoattractant gradient, which display ...
Copenhagen, Katherine   +5 more
core   +4 more sources

A hybrid and adaptive tool-path generation approach of rapid prototyping and manufacturing for biomedical models [PDF]

open access: yes, 2013
In this paper, a hybrid and adaptive tool-path generation approach, which is able to improve geometrical accuracy and build time of Rapid Prototyping/Manufacturing (RP/M) for complex biomedical models, is presented. Firstly, NURBS (Non-Uniform Rational B-
Gao, L.   +3 more
core   +1 more source

Thin-Wall Machining of Light Alloys: A Review of Models and Industrial Approaches [PDF]

open access: yes, 2019
Thin-wall parts are common in the aeronautical sector. However, their machining presents serious challenges such as vibrations and part deflections. To deal with these challenges, di erent approaches have been followed in recent years.
Antonio Juan Gamez   +8 more
core   +7 more sources

Energy localisation and frequency analysis in the locust ear [PDF]

open access: yes, 2013
Animal ears are exquisitely adapted to capture sound energy and perform signal analysis. Studying the ear of the locust, we show how frequency signal analysis can be performed solely by using the structural features of the tympanum.
Malkin, Rob   +4 more
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Form Accuracy Analysis of Cylindrical Parts Produced by Rapid Prototyping [PDF]

open access: yes, 2007
Solid Freeform fabrication processes are being considered for creating fit and assembly nature functional parts. It is extremely important that these parts are within allowable dimensional and geometric tolerance.
Anjikar, Swapnil D.   +2 more
core   +1 more source

Contour parallel milling tool path generation for arbitrary pocket shape using a fast marching method [PDF]

open access: yes, 2018
Contour parallel tool paths are among the most widely used tool paths for planer milling operations. A number of exact as well as approximate methods are available for offsetting a closed boundary in order to generate a contour parallel tool path ...
Dhanik, Sandeep, Xirouchakis, Paul
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3D mesh processing using GAMer 2 to enable reaction-diffusion simulations in realistic cellular geometries

open access: yes, 2019
Recent advances in electron microscopy have enabled the imaging of single cells in 3D at nanometer length scale resolutions. An uncharted frontier for in silico biology is the ability to simulate cellular processes using these observed geometries ...
Amaro, Rommie E.   +7 more
core   +1 more source

A Study of Static and Dynamic Mechanical Behavior of the Substrate in Ultrasonic Consolidation [PDF]

open access: yes, 2006
A new 2-D FEM model is developed for a fundamental study of the time dependent mechanical behavior of the substrate in ultrasonic consolidation. The simulation shows that for a given vibration condition, the amplitude of contact friction stress and ...
Li, Leijun, Zhang, Chunbo
core   +1 more source

Simulation of multi-axis machining processes using z-mapping technique [PDF]

open access: yes, 2011
Parameter selection in machining operations is curial for product quality and high productivity. Process parameters such as feed, spindle speed and depth of cuts are often chosen by trial-error methods.
Budak, Erhan   +4 more
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