Results 21 to 30 of about 5,211,707 (295)

Surface Texture Measurement on Complex Geometry Using Dual-Scan Positioning Strategy

Applied Sciences, 2020
In this paper, a surface measurement method based on dual-scan positioning strategy is presented to address the challenges of irregular surface patterns and complex geometries. A confocal sensor with an internal scanning mechanism was used in this study.
Fang Cheng, Shaowei Fu, Ziran Chen
doaj   +1 more source

Cross-Contamination Identification of Additive Manufacturing Metal Powders Using Spatially Confined Particle-Flow LIBS and Machine Learning

Sensors
Laser-induced breakdown spectroscopy (LIBS) offers rapid, in situ, and multi-element detection, and therefore shows strong potential for quality monitoring of metal powders in additive manufacturing. However, direct LIBS analysis of flowing metal powders
Leiyi Ding, Dan Feng, Yinghao Wang, Mengjie Shan, Yuanbin Wang, Nan Ma   +5 more
doaj   +1 more source

Characterization and Evaluation of Rotation Accuracy of Hydrostatic Spindle under the Influence of Unbalance

Shock and Vibration, 2020
The paper studies the characterization and evaluation technology of rotation accuracy of hydrostatic spindle under the influence of unbalance. The dynamic model of the motion error of the hydrostatic spindle is established based on the dynamic parameters.
Dongju Chen, You Zhao, Jingfang Liu
doaj   +1 more source

Optimal Design of Angular Displacement Sensor with Shared Magnetic Field Based on the Magnetic Equivalent Loop Method

Sensors, 2019
Angular displacement sensor with shared magnetic field has strong environmental adaptability and high measurement accuracy. However, its 3-D structure is multi-pole double-layer structure, using time stepping finite element method (TSFEM) to optimize the
Pinggui Luo, Qifu Tang, Huan Jing
doaj   +1 more source

Numerical study of turbulent flows around a cubic obstacle blown from a variable geometry jets diffuser

Applied and Computational Mechanics
This research focuses on utilizing numerical simulation to analyse how modifications in the air jet diffuser shape impact the cooling efficiency of electronic parts. The main aim of this study is to understand the physical and thermal mechanisms involved
Fellague Chebra A., Braikia M., Khelil A., Bedrouni A., Driss Z.   +4 more
doaj   +1 more source

A Digital Twin Framework for Mechanical Testing Powered by Machine Learning

, 2022
ASME International Mechanical Engineering Congress and Exposition (IMECE) -- OCT 30-NOV 03 -- 2022 -- Columbus -- OHThe aviation industry demands innovation in new materials and processes which can demonstrate high performance with minimum weight ...
Söyleyici, Cem, Kahya, Müge, Bakır, Mete, Ünver, Hakki Özgür   +3 more
core   +2 more sources

Technological Evolution in Grating Encoders: A Review

Photonics
As core components for ultra-precision positioning, grating encoders have technologically evolved toward higher accuracy, faster speeds, and multi-degree-of-freedom (multi-DOF) integration.
Yikai Zhang, Bing Xie, Yuliang Ye, Kangcheng Wu, Xin Xiong   +4 more
doaj   +1 more source

Improved ensemble local mean decomposition based on cubic trigonometric cardinal spline interpolation and its application for rotating machinery fault diagnosis

Advances in Mechanical Engineering, 2020
Ensemble local mean decomposition has been gradually introduced into mechanical vibration signal processing due to its excellent performance in electroencephalogram signal analysis.
Pei Chen, Huanguo Chen, Wenhua Chen, Jun Pan, Jianmin Li, Xihui Liang   +5 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine, Hallie Coltin, Sylvia Cheng, Lucie Lafay‐Cousin, Vanan Issai Magimairajan, Craig Erker, Stéphanie Vairy, Lynette Bowes, Adam Fleming, Donna Johnston, Sarah McKillop, Roona Sinha, Julie Bennett, Christina Coleman, Laura Wheaton, Shayna Zelcer, Samuele Renzi, Thai Hoa Tran   +17 more
wiley   +1 more source

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

Pediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz, Se Whee Sammy Park, Aironas Los, Ernest Liu, Nona Struyf, Tom Erkers, Sören Lehmann, Jan J. Molenaar, Jakob Stenman, Olli Kallioniemi, Päivi Östling, Brinton Seashore‐Ludlow, Kasper Karlsson   +12 more
wiley   +1 more source