Results 71 to 80 of about 1,533,904 (293)

Laser tracker error determination using a network measurement

open access: yes, 2011
We report on a fast, easily implemented method to determine all the geometrical alignment errors of a laser tracker, to high precision. The technique requires no specialist equipment and can be performed in less than an hour.
Forbes, Alistair   +11 more
core   +1 more source

Incidence, Risk Factors and Management of Adverse Events in Contemporary Real‐World Care of Children with Juvenile Idiopathic Arthritis

open access: yesArthritis Care &Research, Accepted Article.
Objective We describe the frequency, risk factors, severity, and management of actionable and serious adverse events (AAE and SAE) in children with newly diagnosed Juvenile Idiopathic Arthritis (JIA) in Canada. Methods We enrolled patients within 3 months of JIA diagnosis in the Canadian Alliance of Pediatric Rheumatology Investigators (CAPRI) Registry,
Bashayer Alnuaimi   +10 more
wiley   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Large-scale module production for the CMS silicon strip tracker

open access: yes, 2005
The Silicon Strip Tracker (SST) for the CMS experiment at LHC consists of 210 m**2 of silicon strip detectors grouped into four distinct sub-systems. We present a brief description of the CMS Tracker, the industrialised detector module production methods
Cattai, A   +11 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

Improving the accuracy of industrial robot movements in the process of incremental shaping

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The paper shows the relevance of using a laser tracker as part of an automated technological complex to improve the accuracy of movements of an industrial robot manipulator in the process of incremental shaping.
N. A. Sazonnikova   +3 more
doaj   +1 more source

A new survey adjustment method for laser tracker relocation

open access: yes, 2015
The relocation function is frequently used in the application of Laser Tracker. However, in large component assembly, since the laser tracker would be blocked by the large-size component, the number and distribution of fiducial points can hardly meet the
Zhang, Zonghua   +3 more
core  

Analysis of Laser Tracker and Total Station Surveys [PDF]

open access: yes, 2000
The SMX 4500 laser tracker has proven itself to be a beneficial addition to SLAC's set of alignment tools. Through actual field surveys and laboratory testing, a question regarding some unknown scale factor appearing after adjusting the combined tracker ...
LeCocq, Catherine M
core   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

open access: yes, 2012
In laser cutting of thick steel sheets, quality difference is observed between cut surfaces obtained with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro   +3 more
core   +1 more source

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