Results 1 to 10 of about 1,188,355 (151)
Development of microcatheter tube extrusion angle estimation system using convolutional neural network segmentation [PDF]
Scientific Reports, 2023 This study presents a deep learning-based monitoring system for estimating extrusion angles in the manufacturing process of microcatheter tubes. Given the critical nature of these tubes, which are directly inserted into the human body, strict quality ...
Seung Hyun Jeong +2 more
doaj +3 more sources
Predictors of tympanostomy tube extrusion time in otitis media with effusion. [PDF]
Saudi Med J, 2022 Objectives: To investigate the impact and predictors of tympanostomy tube (TT) extrusion. Methods: A retrospective study on 258 ears underwent TT insertion during 2016-2018 at King Abdullah Specialized Children’s Hospital, Riyadh, Saudi Arabia.
Alaraifi AK +3 more
europepmc +2 more sources
Factor-Based Extrusion Timing of Ventilation Tubes in Otitis Media with Effusion: A Survival Analysis [PDF]
MedicinaBackground and Objectives: Ventilation tube insertion (VTI) is the most commonly performed surgical procedure for otitis media with effusion (OME) in children.
Kadir Sinasi Bulut +5 more
doaj +2 more sources
Die Design and Finite Element Analysis of Welding Seams during Aluminum Alloy Tube Extrusion
Metals, 2023 Hollow tubes are generally manufactured using porthole die extrusion. A finite element software QForm is used to analyze the material flow of aluminum alloy A6061 tubes inside a specially designed porthole die during tube extrusion. High welding pressure
Yeong-Maw Hwang, I-Peng Hsu
doaj +2 more sources
Polymers, 2022 In the process of double-layer gas-assiste extrusion of a plastic micro-tube, the tugging effect caused by the pressure difference of the gas cushion layer inside the die has a great influence on the external dimensions of the micro-tube. Therefore, this
Bin Liu +3 more
exaly +2 more sources
International Journal of Lightweight Materials and Manufacture, 2020 In order to reduce weight in air and ground vehicles, hollow magnesium alloy profiles are widely concerned. This research was aimed to extrude the tubes of newly developed high-strength alloy Mg–Al–Zn-RE by the porthole die.
Shengwen Bai, Gang Fang
doaj +2 more sources
Polymers, 2020 The diameter of a micro-tube is very small and its wall thickness is very thin. Thus, when applying double-layer gas-assisted extrusion technology to process a micro-tube, it is necessary to find the suitable inlet gas pressure and a method for forming a
Duyang Wang
exaly +2 more sources
Postoperative Otorrhea as a Predictor of Early Ventilation Tube Extrusion in Children [PDF]
Turkish Archives of OtorhinolaryngologyObjective: To evaluate the clinical and surgical factors influencing ventilation tube (VT) extrusion time in pediatric patients, using both univariate and multivariate analyses.
Eray Uzunoğlu +3 more
doaj +2 more sources
Effect of Die Design in Microchannel Tube Extrusion
Procedia Engineering, 2014 Microchannel tube (also called Multi-port extrusion tube) with sub-millimeter-diameter ports in the cross-section is a newly developed type of aluminum extrusion with the basis for its design in micro-scale heat transfer theory.
Dayong Li, Xiaohui Fan, Yinghong Peng
exaly +2 more sources
CIRP Annals - Manufacturing Technology, 2018 This paper presents a new extrusion method for fabrication of a tube with spiral inner fins. The spiral fins are formed by utilizing the generation of spiral outer fins or grooves, which drive the metal to circumferentially move with twist deformation ...
Takashi Kuboki, Shohei Kajikawa
exaly +2 more sources