Results 81 to 90 of about 309,612 (268)

Kinematic control in a four‐wheeled Mecanum mobile robot for trajectory tracking

open access: yesThe Journal of Engineering
The challenges of the modern world require mobile robots with the ability to navigate in congested environments with high levels of manoeuvrability. Therefore, the Mecanum wheel may be viable for addressing this challenge.
José Carlos Ortiz Hernández   +1 more
doaj   +1 more source

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang   +10 more
wiley   +1 more source

A Multi-Terrain Robot Prototype With Archimedean Screw Actuators: Design, Realization, Modeling, and Control

open access: yesIEEE Access
This work introduces a robot prototype designed to explore locomotion, perception, and navigation in unstructured terrains. The focus of this paper is on the robot’s locomotion, from concept design to realization, as well as modelling and control.
Roza Gkliva   +6 more
doaj   +1 more source

Single Cylinder-Type Piezoelectric Actuator with Two Active Kinematic Pairs

open access: yesMicromachines, 2018
There is an ever-increasing demand for small-size, low-cost, and high-precision positioning systems. Therefore, investigation in this field is performed to search for various solutions that can meet technical requirements of precise multi-degree-of ...
Ramutis Bansevicius   +5 more
doaj   +1 more source

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang   +6 more
wiley   +1 more source

Kinematics, dynamics and control design of 4WIS4WID mobile robots

open access: yesThe Journal of Engineering, 2015
Kinematic and dynamic modelling and corresponding control design of a four-wheel-independent steering and four-wheel-independent driving (4WIS4WID) mobile robot are presented in this study.
Ming-Han Lee, Tzuu-Hseng S. Li
doaj   +1 more source

Impact of Asymptomatic Intracranial Hemorrhage on Outcome After Endovascular Stroke Treatment

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Endovascular treatment (EVT) achieves high rates of recanalization in acute large‐vessel occlusion (LVO) stroke, but functional recovery remains heterogeneous. While symptomatic intracranial hemorrhage (sICH) has been well studied, the prognostic impact of asymptomatic intracranial hemorrhage (aICH) after EVT is less certain ...
Shihai Yang   +22 more
wiley   +1 more source

Research and Field Testing of CT Short-Radius Sidetracking Technology for Ultra-deep Wells

open access: yesShiyou jixie, 2023
Deepening existing wellbores or sidetracking to drill non-produced intervals by means of coiled tubing drilling(CTD)through tubing string can eliminate the cost of tripping out the tubing string and facilitate rapid access to target reservoirs while ...
Wang Juhe, Sun Weiguang, Yu Dongbing
doaj  

Home - About - Disclaimer - Privacy