Results 91 to 100 of about 1,218 (278)

Microrobotic Catheterization of the Ophthalmic Artery for Targeted Treatment of Retinoblastoma

Advanced Intelligent Systems, EarlyView.
A microrobotic platform is presented that allows teleoperated and autonomous navigation of flow‐driven magnetic microcatheters, MagFlow, into the ophthalmic artery for superselective intra‐arterial infusion of chemotherapy to treat retinoblastoma. Extensive benchtop validations with patient‐derived biomimetic phantoms under optical and fluoroscopic ...
Artur Banach, Mehdi Krichen, Julian Raub, Christina Stathopoulos, Bruno Bartolini, Mahmut Selman Sakar   +5 more
wiley   +1 more source

Towards Advanced Intelligent and Perceptive Soft Grippers

Advanced Intelligent Systems, EarlyView.
Implementing soft yet strong and intelligent soft grippers request innovative and creative solutions in designing soft bodies and seamlessly integrating actuated systems with hierarchical sensing. This review systematically analyses soft grippers with a deep understanding of core components, from fundamental design principles to actuation and sensing ...
Haneul Kim, Hayeon Shin, Seik Park, Changbeom Shim, Seonggun Joe   +4 more
wiley   +1 more source

Analysis and Experimental Study on Bearing Temperature Rise of High Speed Machine Tools

Jixie chuandong, 2023
In high-speed machine tools, the friction heat of bearings will cause the deformation of the rolling body and the "burning shaft", which will reduce the fatigue life of bearings and affect the normal operation of equipment.
Li Jiangshan, Yuan Yong, Hao Daqing, Chen Houqing, Zhang Zhanli   +4 more
doaj  

Analysis on Cage Dynamic Characteristic of Angular Contact Ball Bearing During Deceleration

Jixie chuandong, 2019
The deceleration process generally exists in the feed system of CNC machine, and the speed change of the process has a great influence on the dynamic performance of angular contact ball bearing, which has always been little noticed by scholars at home ...
Wenbing Tu, Haibin He, Leping Liu, Ya Luo   +3 more
doaj  

Investigation of ball vibrations in angular contact ball bearings

, 2004
In this study, a shaft-bearing model is developed in order to investigate ball vibrations in case of defected and undefected ball bearings. In this model, shaft-bearing couple is considered as a mass-spring system and balls are massless. It is well known that the behavior of the system has a nonlinear character under dynamic conditions.
Arslan, Hakan, Aktürk, Nizami
openaire   +2 more sources

A Dynamic Analysis of Angular Contact Ball Bearing 7205C Used for a Scraper Conveyor

Applied Sciences
As core pieces of transport equipment in longwall mining systems, scraper conveyors operate under extremely harsh and dynamic loading conditions. Their operational reliability and service life primarily depend on the performance of critical components ...
Shaoping Hu, Chao Zhang, Longfeng Sun, Yanchong Gao, Tianbiao Yu   +4 more
doaj   +1 more source

Nonlinear vibration of a rotor on the angular contact ball bearings [PDF]

, 2014
Выполнен анализ колебаний короткого недеформируемого ротора на двух радиально-упорных шарикоподшипниках с предварительным осевым поджатием. Нелинейная модель шарикоподшипника построена на базе теории Герца.
Филипковский, Сергей Владимирович, Беломытцев, Андрей Сергеевич   +1 more
core  

Controlling the Guanidinium Cation Rotation by Cation–π Interactions

Angewandte Chemie International Edition, EarlyView.
A lanthanide π‐container has been employed to trap a guanidinium cation inside the aromatic cavity by cation–π interactions. X‐ray crystallography and solid‐state nuclear magnetic resonance (NMR) spectroscopy at fast magic‐angle spinning (MAS) frequencies have been utilized to probe the underlying host–guest interactions.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source

Frictional Torque Characteristic of Angular Contact Ball Bearings

Journal of Mechanical Engineering, 2011
Based on the dynamics and thermodynamic analysis of angular contact ball bearings,the theoretical computational formulae of the friction torque of angular contact ball bearings are obtained with the law of energy conservation.The theoretical analysis and the experimental verification for the effects of the structural parameters,operation condition on ...
openaire   +1 more source