Results 31 to 40 of about 195,765 (299)

Influence of NC Program Quality and Geometric Errors of Rotary Axes on S-Shaped Machining Test Accuracy

Journal of Manufacturing and Materials Processing, 2018
An S-shaped machining test is proposed for the ISO 10791-7 standard to verify the performance of five-axis machining centers. However, investigation of the factor that has the most influence on the geometrical accuracy of finished S-shaped workpieces has
Ryuta Sato, Keiichi Shirase, Yukitoshi Ihara   +2 more
doaj   +1 more source

A study on tolerance design of machine tool components based on shape generation motions (Theoretical analysis considering rotational table positions)

Nihon Kikai Gakkai ronbunshu, 2017
The kinematic motion deviations of the five-axis machining centers are deeply influenced by the geometric deviations of the components, such as guide-ways and bearings.
Naoki SATONAKA, Ryo TAKEMATSU, Nobuhiro SUGIMURA, Koji IWAMURA, Yoshitaka TANIMIZU   +4 more
doaj   +1 more source

An Example of Teaching Geometric Dimensioning and Tolerancing (GD&T) Concepts using 3D Printed Parts [PDF]

, 2019
Geometric Dimensioning and Tolerancing (GD&T) is an important tool for engineers to efficiently communicate design intent and requirements. GD&T has several advantages but can be difficult for students to learn due to the inherent 3D nature of the ...
Rios, Oziel
core   +1 more source

A study on tolerance design of machine tool components based on shape generation motions

Nihon Kikai Gakkai ronbunshu, 2016
The kinematic motion deviations of the five-axis machining centers are deeply influenced by the geometric deviations of the components, such as guide-ways and bearings.
Ryo TAKEMATSU, Naoki SATONAKA, Arata YOSHIDA, Nobuhiro SUGIMURA, Koji IWAMURA, Yoshitaka TANIMIZU   +5 more
doaj   +1 more source

Observation of quantum interference as a function of Berry's phase in a complex Hadamard optical network

, 2012
Emerging models of quantum computation driven by multi-photon quantum interference, while not universal, may offer an exponential advantage over classical computers for certain problems.
Anthony Laing, Enrique Martín López, Jeremy L. O’Brien, K. Mattle, S. Aaronson, S. Pancharatnam, Thomas Lawson   +6 more
core   +1 more source

Cascading failures in spatially-embedded random networks [PDF]

, 2014
Cascading failures constitute an important vulnerability of interconnected systems. Here we focus on the study of such failures on networks in which the connectivity of nodes is constrained by geographical distance.
Asztalos, Andrea, Korniss, Gyorgy, Sreenivasan, Sameet, Szymanski, Boleslaw K.   +3 more
core   +4 more sources

Cartographic Algorithms: Problems of Implementation and Evaluation and the Impact of Digitising Errors [PDF]

, 1991
Cartographic generalisation remains one of the outstanding challenges in digital cartography and Geographical Information Systems (GIS). It is generally assumed that computerisation will lead to the removal of spurious variability introduced by the ...
Visvalingam, M., Visvalingam, Maheswari, Whyatt, J. D.   +2 more
core   +1 more source

Phase Competition in Ln0.5a0.5mno3 Perovskites

, 2002
Single crystals of the systems Pr0.5(Ca1-xSrx)0.5MnO3, (Pr1-yYy)0.5(Ca1-xSrx)0.5MnO3, and Sm0.5Sr0.5MnO3 were grown to provide a series of samples with fixed ratio Mn(III)/Mn(IV)=1 having geometric tolerance factors that span the transition from ...
A. Daoud-Aladine, A. Kiruki, B. Fisher, C. H. Booth, C. N. R. Rao, C. Ritter, E. Dagotto, E. Winkler, F. Damay, F. Millange, F. Rivadulla, F. Rivadulla, F. Rivadulla, H. Kuwahara, J. B. Goodenough, J. B. Goodenough, J. B. Goodenough, J. B. Goodenough, J. B. Goodenough, J. B. Goodenough, J. Burgy, J. M. De Teresa, J. Mira, J. P. Attfield, J.-S. Zhou, J.-S. Zhou, K. Krupicka, K. Kubo, L. M. Rodríguez-Martínez, M. Uehara, P. G. De Gennes, R. Mahendiran, S. Yunoki, T. Egami, T. Holstein, W. Archibald, X. Wang, Y. Tokura, Z. Jirák   +38 more
core   +1 more source

The selective advantage of reaction norms for environmental tolerance [PDF]

, 1992
A tolerance curve defines the dependence of a genotype's fitness on the state of an environmental gradient. It can be characterized by a mode (the genotype's optimal environment) and a width (the breadth of adaptation). It seems possible that one or both
Gabriel, Wilfried, Lynch, Michael
core   +1 more source

Method of determining the process applied for feature machining : experimental validation of a slot [PDF]

, 2007
In this paper, we will be evaluating the "manufacturability" levels for several machining processes of "slot" feature. Using the STEP standard, we will identify the slot feature characteristics. Then, using the ascendant generation of process method, we
D'ACUNTO, Alain, MARTIN, Patrick
core   +6 more sources