Results 61 to 70 of about 278,740 (250)

A capacitor-clamped inverter based torsional oscillation damping method for electromechanical drivetrains

open access: yesMATEC Web of Conferences, 2016
A typical electromechanical drivetrain consists of an electric motor, connecting shafts and gears. Premature failures of these shafts and gears have been reported which are mainly due to fatigue caused by extreme loads and torsional oscillations ...
Shagar Viknash   +3 more
doaj   +1 more source

Electron screening effects on crustal torsional oscillations [PDF]

open access: yes, 2014
We systematically examine the crustal torsional oscillations as varying the stellar mass and radius, where we take into account the effect of electron screening due to the inhomogeneity of electron distribution.
Sotani, Hajime
core   +1 more source

Mechanical Flexibility Enables DNA Origami to Overcome Steric Confinement in Mucus

open access: yesAdvanced Science, EarlyView.
Mechanical flexibility is introduced as a design parameter to enhance nanocarrier transport in mucus. Using DNA origami, flexibility is decoupled from size, shap and surface chemistry, revealing improved passage through confined hydrogel networks. While surface passivation reduces aggregation, flexibility further boosts transport, offering a general ...
Matteo Tollemeto   +5 more
wiley   +1 more source

III. On torsional oscillations of wires [PDF]

open access: yesThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1894
n ...
openaire   +2 more sources

Propagation of elastic waves in DNA

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
The mathematical analyses of longitudinal and torsional elastic waves transmitted along DNA molecule undergoing Brownian motion in solution are presented.
Sunil Mukherjee   +3 more
doaj   +1 more source

A Rigid–Foldable Kirigami‐Inspired Metamorphic Mechanism With Programmable Motion Modes and Self‐Locking

open access: yesAdvanced Science, EarlyView.
Geometric constraint reconfiguration enables a rigid–foldable kirigami‐inspired mechanism to switch between twisting, directional translation, and self‐locking states. By encoding multifunctionality directly into its architecture, the mechanism achieves multimodal motion and passive locking without reassembly, providing a compact platform for adaptive ...
Jianlin Wang, Zhongmin Song, Ketao Zhang
wiley   +1 more source

Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

open access: yesAdvanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron   +4 more
wiley   +1 more source

XVIII.—On Torsional Oscillations of Wires [PDF]

open access: yesTransactions of the Royal Society of Edinburgh, 1897
About two years ago I communicated to this Society a paper on the above subject, which was printed in the Philosophical Magazine (1894). The object of the investigations therein discussed was the determination of the law of decrease of torsional oscillations when the range of oscillation was large in comparison with the palpable limits of elasticity ...
openaire   +1 more source

Shear‐Mode Direct Piezoelectric Response of Ferroelectric Nematic Liquid Crystals

open access: yesAdvanced Science, EarlyView.
Periodic shear‐induced electric current measurements are reported on two archetypic ferroelectric nematic liquid crystal compounds. From the temperature, frequency and shear angle dependent results of the first and second harmonic current signals together with temperature and oscillatory rheology measurements, the effective piezoelectric coupling ...
Péter Salamon   +4 more
wiley   +1 more source

Torsional oscillations of longitudinally inhomogeneous coronal loops

open access: yes, 2007
Aims.We explore the effect of an inhomogeneous mass density field on frequencies and wave profiles of torsional Alfvén oscillations in solar coronal loops. Methods.Dispersion relations for torsional oscillations are derived analytically in limits
K. Murawski, T. V. Zaqarashvili
core   +1 more source

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