Browsing Mechanical Engineering by Title
Now showing items 459-465 of 465
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Validation and comparison of 2D and 3D numerical simulations of flow in simplex nozzles
(Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2021-08-31)Numerical simulations of pressure swirl atomizers are computationally expensive due to transient and multiphase flow behavior. In this study, 2D and 3D VOF simulations are performed for a geomerty which has high swirl ... -
Variable ankle stiffness improves balance control: experiments on a bipedal exoskeleton
(IEEE, 2016-02)This paper proposes a real-time balance control technique that can be implemented to bipedal robots (exoskeletons, humanoids) whose ankle joints are powered via variable physical stiffness actuators. To achieve active ... -
Visual needle tip tracking in 2D US guided robotic interventions
(Elsevier, 2019-02)Percutaneous needle procedures are among the most frequently performed minimally invasive surgical procedure. For tracking the needle tip in the tissue, 2D ultrasound (US) imaging is commonly used; however, the low resolution ... -
Visual tracking of biopsy needles in 2D ultrasound images
(2016)Ultrasound (US) is one the most commonly used medical imaging techniques in percutaneous needle procedures. However, US images are inherently noisy and contain excessive number of artifacts. Hence, it is not easy to track ... -
Visual tracking of multiple moving targets in 2D ultrasound guided robotic percutaneous interventions
(IEEE, 2017)Percutaneous needle procedures are mostly carried out with the guidance of 2D ultrasound (US) imaging. US images are inherently noisy and their resolutions are low. Hence, target tracking can be challenging. Image based ... -
Workability characteristics and mechanical behavior modeling of severely deformed pure titanium at high temperatures
(Elsevier, 2014-01)In the present study, compression tests were performed at temperatures of 600–900 °C and at strain rates of 0.001–0.1 s−1 to study the deformation and workability characteristics of commercially pure titanium after severe ... -
ZMP-based online jumping pattern generation for a one-legged robot
(IEEE, 2010-05-01)This paper is aimed at presenting a method to generate online jumping patterns, which can be applied to one legged jumping robots and optionally to humanoid robots. Our proposed method is based on ensuring the overall ...
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