Results 81 to 90 of about 278,740 (250)

Motion and Morphology Planning for Autonomous Manipulation in Clutter With a Shape‐Shifting, Variable‐Stiffness Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
A hybrid mobile robot with a modular Variable‐Stiffness Bridge transitions between a rigid locomotion platform and a flexible, shape‐conforming body. By enclosing objects within its deformable structure rather than relying on dedicated end effectors, the robot achieves orientation‐regulated planar transport, with conformal contact quality shown to ...
Luiza Labazanova   +5 more
wiley   +1 more source

Method and system for damping torsional oscillations

open access: yes, 2016
The invention concerns the damping of torsional oscillations/vibrations, particularly during electrical power generation within a gas turbine such as a civil aviation engine.
Bhangu, Bikramjit Singh   +4 more
core  

Continuous and Large‐Scale: ELEANOR, the Soft Architected Arm Inspired by the Elephant Trunk

open access: yesAdvanced Intelligent Systems, EarlyView.
A large‐scale, architected continuum robot inspired by the macroscopic properties of the African elephant trunk achieves adaptive elephant‐like movements and whole‐body grasping. The results demonstrate that designing from the natural system’s macroscopic properties, rather than prescribing behaviors, provides a powerful strategy for developing ...
Giovanna A. Naselli   +8 more
wiley   +1 more source

On the convective excitation of torsional oscillations in rotating systems

open access: yes, 2006
An asymptotic theory is presented to describe the possible mechanism for the excitation and maintenance of torsional oscillations in rotating convective stars and planets. It is demonstrated analytically that the torsional oscillations can be excited and
Liao, XH, Zhang, KK
core  

Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans

open access: yesThe Anatomical Record, EarlyView.
Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban   +3 more
wiley   +1 more source

Opsoclonus in Pediatric Patients: Differential Diagnosis and a Practical Approach to Evaluation

open access: yesAnnals of the Child Neurology Society, EarlyView.
ABSTRACT Opsoclonus is an ocular dyskinesia characterized by involuntary, arrhythmic, multidirectional saccades. In pediatrics, opsoclonus is most commonly attributed to the rare neuroinflammatory disorder opsoclonus‐myoclonus‐ataxia syndrome (OMAS), typically considered a paraneoplastic syndrome associated with neural crest tumors. However, opsoclonus
Aubrey C. Reed   +5 more
wiley   +1 more source

THE USE OF GRAPHS AND AUTOMATA TO THE CALCULATION OF DISCRETE AND CONTINUOUS BEAMS VIBRATIONS

open access: yesNauka ta progres transportu, 2009
The topological models for longitudinal and torsional oscillations of rod structures with various concentrated inclusions in distributed mass, stiffness of elastic medium and rod stiffness are done.
O. S. Raspopov
doaj  

Numerical and Experimental Evaluation of a Simplified Lateral Spring Formulation for Rocking Structures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Rocking podium isolation systems have gained significant research interest as a method of limiting seismic demands on superstructures and eliminating residual post‐earthquake drifts through self‐centring behaviour. However, while numerous models of varying complexity, including analytical, phenomenological, and physical formulations, have been
Marawan Zaki   +2 more
wiley   +1 more source

Simple harmonic oscillations, energy considerations, torsional pendulum

open access: yes, 2016
Notions about frequency and period, conservation of energyEducação Superior::Ciências Exatas e da Terra::FísicaThe simple harmonic oscillations (SHO) of suspended solid bodies are related to their geometry.
Lewin, Walter
core   +5 more sources

Multiple periodic solutions to a suspension bridge O.D.E.

open access: yesElectronic Journal of Differential Equations, 2000
We present an ordinary differential equation which models the torsional motion of a horizontal cross section of a suspension bridge. We use Leray-Schauder degree theory to prove that the undamped equation has multiple periodic weak solutions.
P. J. McKenna, K. S. Moore
doaj  

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