Results 1 to 10 of about 52,646 (158)

Deep Learning to Directly Predict Compensation Values of Thermally Induced Volumetric Errors

open access: yesMachines, 2023
The activities of the rotary axes of a five-axis machine tool generate heat causing temperature changes within the machine that contribute to tool center point (TCP) deviations.
René Mayer   +2 more
exaly   +3 more sources

A Fiducial-Aided Reconfigurable Artefact for the Estimation of Volumetric Errors of Multi-Axis Ultra-Precision Machine Tools

open access: yesApplied Sciences (Switzerland), 2022
In this paper, a fiducial-aided reconfigurable artefact is presented for estimating volumetric errors of multi-axis machine tools. The artefact makes use of an adjustable number of standard balls as fiducials to build a 3D artefact which has been ...
Chi Fai Cheung   +2 more
exaly   +3 more sources

Numerical Aspects of Multilateration for Volumetric Error Calculation

open access: yesMachines, 2022
We discuss two approaches to multilateration with a particular focus on numerical aspects for a given dataset. More precisely, we calculate the volumetric errors of the MCV 754 milling machine from the data measured by a LaserTRACER and provide criteria ...
Michal Holub   +4 more
doaj   +3 more sources

Multi-dimensional deep learning–based segmentation and volumetric assessment of sphenoid sinus fluid on postmortem CT in drowning cases [PDF]

open access: yesScientific Reports
Sphenoid sinus fluid is considered a supportive indicator of drowning in forensic medicine, but traditional manual assessment on postmortem computed tomography (PMCT) is labor-intensive and observer-dependent.
Jin-Haeng Heo   +9 more
doaj   +2 more sources

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   +2 more sources

Volumetric Benchmarking of Error Mitigation with Qermit

open access: yesQuantum, 2023
The detrimental effect of noise accumulates as quantum computers grow in size. In the case where devices are too small or noisy to perform error correction, error mitigation may be used. Error mitigation does not increase the fidelity of quantum states, but instead aims to reduce the approximation error in quantities of concern, such as expectation ...
Cristina Cirstoiu   +4 more
openaire   +5 more sources

A stochastic model for volumetric errors [PDF]

open access: yesJournal of the Brazilian Society of Mechanical Sciences and Engineering, 2006
The present work aims to determine mathematical equations that describe the behavior of the components of the volumetric error in Three Coordinates Measuring Machines (3CMM). A general methodology using techniques of multiple regressions is presented.
Valdés, Rosenda A.   +2 more
openaire   +3 more sources

A Study on the Estimation of Geometric Errors for Rotary Axes of a Five-Axis Machine Tool Using a Cross-Shaped Calibration Artifact [PDF]

open access: yes한국정밀공학회지, 2023
Estimation and compensation of geometric errors for rotary axes are among methods to improve machining accuracy of five-axis machine tools. Studies have been conducted on various methodologies for estimating geometric errors for rotary axes, which are ...
Jeongmo Kang, Dayoung Kim, Sungchul Jee
doaj   +1 more source

METROLOGICAL BEHAVIOUR OF BULK WATER METERS UNDER DIVERSE INSTALLATION CONFIGURATIONS [PDF]

open access: yesEngenharia Agrícola, 2018
As the correct measurement is an essential part of water management, this study describes the metrological behaviour of a range of bulk water meters under different installation configurations.
Carmen V. Palau   +4 more
doaj   +1 more source

Calibration of volumetric soil moisture using Landsat-8 and Sentinel-2 satellite imagery by Google Earth Engine

open access: yesRevista de Teledetección, 2023
Water scarcity for agriculture is increasingly evident due to climatic alterations and inadequate management of this resource. Therefore, developing digital models that help improve water resource management to provide solutions to agronomic problems in ...
José Rodolfo Quintana-Molina   +5 more
doaj   +1 more source

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