Results 41 to 50 of about 761,718 (286)
Predicting geometric errors and failures in additive manufacturing
Rapid Prototyping Journal, 2023 Purpose Objects fabricated using additive manufacturing (AM) technologies often suffer from dimensional accuracy issues and other part-specific problems. This study aims to present a framework for estimating the printability of a computer-aided design (CAD) model that expresses the probability that the model is fabricated correctly via an AM ...
Ntousia, Margarita +3 more
openaire +2 more sources
Modeling of CNC machine tools’ spatial geometric error based on two-dimensional angle error
SN Applied Sciences, 2022 A modeling method of CNC machine tools’ spatial geometric error is proposed based on two-dimensional angle error in this paper. Different from traditional modeling method, this method takes into account the effect of additional angle errors because the ...
Xiuqin Zhang +5 more
doaj +1 more source
Machines, 2022 Three-axis milling machine tools are widely used in manufacturing enterprises, and they have enormous potential demands for remanufacturing to improve their performance.
Wenzheng Ding, Zhanqun Song, Shuang Ding
doaj +1 more source
The Effect of Distinct Geometric Semantic Crossover Operators in Regression Problems [PDF]
, 2015 This paper investigates the impact of geometric semantic crossover operators in a wide range of symbolic regression problems. First, it analyses the impact of using Manhattan and Euclidean distance geometric semantic crossovers in the learning process ...
Albinati, Julio +3 more
core +1 more source
Total variation error bounds for geometric approximation
, 2013 We develop a new formulation of Stein's method to obtain computable upper bounds on the total variation distance between the geometric distribution and a distribution of interest.
Peköz, Erol A. +2 more
core +2 more sources
Geometric Error of Finite Volume Schemes for Conservation Laws on Evolving Surfaces [PDF]
, 2013 This paper studies finite volume schemes for scalar hyperbolic conservation laws on evolving hypersurfaces of $\mathbb{R}^3$. We compare theoretical schemes assuming knowledge of all geometric quantities to (practical) schemes defined on moving polyhedra
Giesselmann, Jan, Müller, Thomas
core +3 more sources
New identification method for computer numerical control geometric errors
Measurement + Control, 2021 To address the problems of the low accuracy of geometric error identification and incomplete identification results of the linear axis detection of computer numerical control (CNC) machine tools, a new 21-item geometric error identification method based ...
Hongtao Yang +5 more
doaj +1 more source
Machines, 2022 In order to quickly and accurately predict the spatial geometric error field of the five-axis machine tool processing, a method for predicting the comprehensive error field of the five-axis machine tool processing space based on the “S”-shaped specimen ...
Shi Wu, Zeyu Dong, Fei Qi, Zhendong Fan
doaj +1 more source
Error Bounds forDiscrete Geometric Approach
Computer Modeling in Engineering & Sciences, 2010 Electromagnetic problems spatially discretized by the so called Discrete Geometric Approach are considered, where Discrete Counterparts of Constitutive Relations are discretized within an Energetic Approach. Pairs of oriented dual grids are considered in which the primal grid is composed of (oblique) parallelepipeds, (oblique) triangular prisms and ...
CODECASA, LORENZO, F. Trevisan
openaire +3 more sources
Rabi- and Blockade-Error-Resilient All-Geometric Rydberg Quantum Gates
Physical Review Applied, 2023 We propose a nontrivial two-qubit gate scheme in which Rydberg atoms are subject to designed pulses resulting from geometric evolution processes. By utilizing a hybrid robust non-adiabatic and adiabatic geometric operations on the control atom and target atom, respectively, we improve the robustness of two-qubit Rydberg gate against Rabi control errors
S.-L. Su +6 more
openaire +2 more sources