Results 191 to 200 of about 623,845 (356)

Relation of Bulk‐to‐Shear Loss Factors in Viscoelastic Auxetic Metamaterials

physica status solidi (b), EarlyView.
This article examines the dynamic behavior of isotropic auxetic viscoelastic materials, highlighting how negative Poisson's ratios affect energy dissipation, damping, and the interplay between bulk and shear moduli. By extending established viscoelastic theories to the auxetic range, it defines bound limits and underscores how dynamic Poisson's ratio ...
Simon Preston, Julián Londoño‐Monsalve, Ken E. Evans   +2 more
wiley   +1 more source

Design and simulation of a solar array deployment mechanism for a small satellite using implicit time-stepping. [PDF]

Sci Rep
Saad GB, Desoki AR, Kassab M.
europepmc   +1 more source

Negative Stiffness Induced and Controlled by Constriction

physica status solidi (b), EarlyView.
Structures with negative stiffness can be stabilized by constriction of external displacement. Furthermore, constriction can make a conventional positive stiffness material exhibit negative stiffness, either bidirectional or unidirectional (shown in the figure).
Elena Pasternak, Arcady V. Dyskin
wiley   +1 more source

Development of a novel pendulum column base isolation system with vertical negative stiffness (PC-VNS) for pile-like behavior for seismic applications. [PDF]

Sci Rep
Azizi A, Barghian M.
europepmc   +1 more source

A pilot variational coupled reanalysis based on the CESAM climate model

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Variational data assimilation of in‐situ and satellite ocean data and reanalysis atmospheric data into an intermediate complexity Earth system model is possible by adjusting the surface fluxes and internal model parameters. This pilot application requires nearly complete information on the atmospheric state for synchronization.
Armin Köhl, Iuliia Polkova, Guokun Lyu, Frank Lunkeit, Abhirup Banerjee, Silke Schubert, Detlef Stammer   +6 more
wiley   +1 more source

Experimental validation and simulation of a U-Shaped elastic beam robot for stable running locomotion. [PDF]

Sci Rep
Khalifa W, Essam MA, Ghazy MR, El-Fadl AA.   +3 more
europepmc   +1 more source

Indian and African monsoons: Trajectories and interactions

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The catch basin of marine air particles of the Indian monsoon is the tropical Indian ocean, whilst that of the African monsoon is the east tropical Atlantic. However, the oscillations induced by the monsoonal interactions favour particle exchange between the two basins. These transitions are abrupt in the presence of stochastic resonance. The monsoonal
Giovanni A. Dalu, Marina Baldi
wiley   +1 more source

Adaptive variable impedance hybrid force-position control method for hub-spoke grinding robots. [PDF]

Sci Rep
Wei S, Ze-Jian Z, Hao-Yu Y, Xiao-Hong D, Jia-Yu S, Ting G, Jun P, Jia A.   +7 more
europepmc   +1 more source

Terrain Classification for Planetary Rovers Using Wireless In‐Wheel Sensor Modules and Machine Learning

Journal of Field Robotics, EarlyView.
ABSTRACT Safe and reliable mobility over different kinds of ground is important for planetary rovers on space missions. Since terrain changes might affect the mobility of the rover, energy consumption, and safety, detecting the type of ground in real‐time is vital.
Md Masrul Khan, Sultan Shaharea, Manseeb M. Mannaf, Shihab Ahemed, Fahim Islam Anik, Md Jarir Hossain, Helal An Nahiyan, Sourav Karmaker   +7 more
wiley   +1 more source

Reinventing the wheel: a simulation-aided design of a soft, shape-adapting, lugged wheel for locomotion on sandy terrains. [PDF]

Front Robot AI
Shi H, Klaassen P, Schott DL, Jovanova J.   +3 more
europepmc   +1 more source