Results 91 to 100 of about 2,632,024 (290)

Measurement method of screw thread geometric error based on machine vision

open access: yesMeasurement + Control, 2018
In order to solve manual operation and low detection efficiency in the measurement of thread geometric error, machine vision and optical enlargement are adopted to measure the high-precision geometric error of thread.
Jing Min
doaj   +1 more source

Impact of Hydrogen Incorporation on Electronic and Magnetic Structure of X2CrNi18‐9 Stainless Steel

open access: yesAdvanced Engineering Materials, EarlyView.
Hydrogen uptake in austenitic stainless steel alters both its electronic and magnetic structure. Seebeck measurements reveal hydrogen‐induced shifts in the electronic density of states, while neutron scattering uncovers nanoscale inhomogeneities that grow upon hydrogen incorporation, with the most pronounced effect observed in the PBF as‐built state ...
Torben Tappe   +9 more
wiley   +1 more source

NURBS-Driven Modelling of Interface Geometric Errors in Aero-Engine Casings for Assembly Analysis

open access: yesModelling
Assembly-oriented geometric models of aero-engine casings require the spatial distribution of deviations at mating interfaces. Conventional scalar descriptors, including flatness, axial runout, and radial runout, cannot retain this information.
Xiaole Guan, Xin Jin, Zhijing Zhang
doaj   +1 more source

A Fast Precise Geometric Calibration Method for Airborne SAR

open access: yesLeida xuebao, 2016
Geometric positioning accuracy is an important technical indicator for Synthetic Aperture Radar (SAR) in the geomatics domain. Airborne SAR is an important trend in SAR technology due to its advantages of high flexibility, high resolution, and low cost ...
Liu Yunlong   +3 more
doaj   +1 more source

Effect of Geometric Error on Friction Behavior of Cylinder Seals. [PDF]

open access: yesPolymers (Basel), 2021
Lin A, Wu J, Li H, Li Z, Su B, Wang Y.
europepmc   +1 more source

Model Error Resonance: The Geometric Nature of Error Dynamics

open access: yesCoRR
This paper introduces a geometric theory of model error, treating true and model dynamics as geodesic flows generated by distinct affine connections on a smooth manifold. When these connections differ, the resulting trajectory discrepancy--termed the Latent Error Dynamic Response (LEDR)--acquires an intrinsic dynamical structure governed by curvature ...
openaire   +3 more sources

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

open access: yesAdvanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo   +15 more
wiley   +1 more source

Thermal and Geometric Error Compensation Approach for an Optical Linear Encoder. [PDF]

open access: yesSensors (Basel), 2021
Gurauskis D   +3 more
europepmc   +1 more source

Gyroid Structured Globugraphite Carbon Foam With Hierarchical and Tailored Pore Size

open access: yesAdvanced Engineering Materials, EarlyView.
Secondary sacrificial templates were designed and printed to create a defined network within a porous carbon. Lattices thermally degrades during the sintering process. Lattices are imprinted into the ceramic template and transferred to the morphology of Globugraphite.
Christiane Roller   +6 more
wiley   +1 more source

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