Results 61 to 70 of about 195,765 (299)

Interim Check and Compensation of Geometric Errors to Improve Volumetric Error of Machine Tools [PDF]

open access: yes한국정밀공학회지, 2018
In the manufacture of mechanical components, volumetric errors of a machine tool should be checked and reduced to meet the required tolerance levels.
Seung-Han Yang   +2 more
doaj   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

考虑形位公差的二维装配公差分析

open access: yesJixie chuandong, 2008
Geometric tolerances are the result of variations in the shape,orientation or location of part features.Although geometric feature variations can also contribute significantly to the performance of an assembly and should be considered in any ...
彭和平, 刘晓军
doaj  

Ventral-stream-like shape representation : from pixel intensity values to trainable object-selective COSFIRE models [PDF]

open access: yes, 2014
Keywords: hierarchical representation, object recognition, shape, ventral stream, vision and scene understanding, robotics, handwriting analysisThe remarkable abilities of the primate visual system have inspired the construction of computational models ...
Azzopardi, George, Petkov, Nicolai
core   +4 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

A study on tolerances design of parallel link robots based on mathematical models

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
Parallel link robots are now being applied to various assembling tasks for small products and components. One of the important issues for design of the parallel link robots is to improve their kinematic motion deviations due to the complex link ...
Ryo TAKEMATSU   +4 more
doaj   +1 more source

The deffect effect on electronic conductance in binomially tailored quantum wire [PDF]

open access: yes, 2006
The paper considers the effect of the defects on the electronic transmission properties in binomially tailored waveguide quantum wires, in which each Dirac delta function potential strength have been weight on the binomial distribution law.
A.I. Assad   +5 more
core   +3 more sources

Synthesis of a Novel Thermoresponsive S53P4 Bioactive Glass Extract–Poloxamer 407 Injectable Hydrogels: Assessment of Biocompatibility and Antimicrobial Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates innovative thermoreversible hydrogels derived from S53P4 bioactive glass extracts to aid in the healing of infected diabetic foot wounds. These injectable gels, which gel at body temperature, release beneficial ions and remain stable over time.
Marian G. Vargas Guerrero   +9 more
wiley   +1 more source

Hydraulic influence of geometrical defects in Venturi flumes: shall we destroy and rebuild? [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2014
Venturi flumes are measurement structures commonly used in water systems to measure the flow discharge. Some of them are not well installed or present some geometrical defects.
Matthieu Dufresne, Jose Vazquez
doaj  

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