Results 81 to 90 of about 49,443 (269)

Finite element analysis of the critical stress for bone resorption around the orthodontic anchoring screw in midpalatal area during distalization of the maxillary dental arch

Clinical and Investigative Orthodontics
Purpose This study aimed to determine the conditions for reaching critical stress that causes bone resorption around the orthodontic anchoring screw (screw) during maxillary dental arch distalization using a palatal lever arm (PLA) through finite element
Toshihiro Yoneyama, Yasuki Uchida, Yasuhiro Namura, Mizuki Inaba, Yu Gakiya, Rie Shinohara, Yuki Kurisu, Mitsuru Motoyoshi   +7 more
doaj   +1 more source

Bearing clearance test and lifetime analysis for EMU traction motor

机车电传动, 2022
The mechanical load is the only factor of influence considered in the traditional bearing lifetime prediction algorithm. However, for the traction motor of the electric multiple units (EMUs) in actual working conditions, its bearing is also subject to ...
GENG Min, ZHAO Pengyu, LI Xiaoyang, LEI Guanbiao, WANG Xilian   +4 more
doaj  

Myosin IIA deficient cells migrate efficiently despite reduced traction forces at cell periphery

Biology Open, 2013
Summary Cell motility is a cornerstone of embryogenesis, tissue remodeling and repair, and cancer cell invasion. It is generally thought that migrating cells grab and exert traction force onto the extracellular matrix in order to pull the cell body ...
Melissa H. Jorrisch, Wenting Shih, Soichiro Yamada   +2 more
doaj   +1 more source

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

Advanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin, Silvia Monchetti, Paolo Emilio Puddu, Luciano Teresi, Antonio DeSimone, Roberto Brighenti   +5 more
wiley   +1 more source

Substrate mediated interaction between pairs of keratocytes: Multipole traction force models describe their migratory behavior.

PLoS ONE, 2019
A series of traction force microscopy experiments involving pairs of keratocytes migrating on compliant substrates were analyzed. We observed several instances where keratocytes that are about to collide turn before they touch.
Benoit Palmieri, Christine Scanlon, Daniel Worroll, Martin Grant, Juliet Lee   +4 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Research on Hierarchical Collaborative Control of Dual-Axis Drive Hybrid Electric Tractor for Hill and Mountain Terrain Considering Traction Efficiency and Energy Consumption Economy

World Electric Vehicle Journal
Hybrid tractors operating in hilly terrain often suffer from reduced overall performance due to unregulated slip rate variations. To address this issue, this paper proposes a hierarchical cooperative control strategy that jointly optimizes traction ...
Gaoyang Cao, Yiwen Jiang, Junjiang Zhang, Xianghai Yan, Mengnan Liu, Liyou Xu, Yuan Tao   +6 more
doaj   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source