Results 21 to 30 of about 7,478 (247)

Investigating the buckling and vibration of a Kirchhoff rectangular nanoplate using modified couple stress theory

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
In this paper a model is developed for the buckling and vibration analysis of a Kirchhoff rectangular nanoplate based on a modified couple stress theory.
Majid E. Shahraki, Jafar E. Jam
doaj   +1 more source

Spectral methods in gravity inversion: the geopotential field and its derivatives

open access: yesAnnals of Geophysics, 1997
The 3D spectral analysis of the gravitational potential field for a given mass distribution is studied. The derived quantities, the gravitational force field and the gravity gradient tensor are computed in frequency space.
C. Braitenberg, M. Zadro
doaj   +1 more source

Parasitic High Q-Factor Open-Box Modes With 3-D Printed Dielectric-Filled Metal Waveguides

open access: yesIEEE Access, 2021
High Q-factor open-box mode resonances have been found in the microwave measurements of several 3-D printed dielectric-filled metal-pipe rectangular waveguides (MPRWGs).
Attique Dawood, Stepan Lucyszyn
doaj   +1 more source

Improved Rectangular Matrix Multiplication using Powers of the Coppersmith-Winograd Tensor [PDF]

open access: yes, 2018
In the past few years, successive improvements of the asymptotic complexity of square matrix multiplication have been obtained by developing novel methods to analyze the powers of the Coppersmith-Winograd tensor, a basic construction introduced thirty years ago. In this paper we show how to generalize this approach to make progress on the complexity of
Francois Le Gall, Florent Urrutia
openaire   +2 more sources

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Estimation of permeability tensor and dielectric permittivity of ferrites using a wave guide method under a dc magnetic field

open access: yesEPJ Web of Conferences, 2014
Using a vector network analyzer equipped with a calibrated rectangular wave guide the electric permittivity and the element of the magnetic permeability tensor for Y3Fe5O12, ZnFe2O4 and NiFe2O4 are measured.
Tsiachristos I.   +8 more
doaj   +1 more source

A novel recursive sub-tensor hyperspectral compressive sensing of plant leaves based on multiple arbitrary-shape regions of interest [PDF]

open access: yesPeerJ Computer Science
Plant hyperspectral images (HSIs) contain valuable information for agricultural disaster prediction, biomass estimation, and other applications. However, they also include a lot of irrelevant background information, which wastes storage resources.
Zhuo Li   +5 more
doaj   +2 more sources

Rectangular M-tensors and strong rectangular M-tensors [PDF]

open access: yesScienceAsia, 2021
Jun He, Yanmin Liu, Guangjun Xu
openaire   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang   +9 more
wiley   +1 more source

An S-type singular value inclusion set for rectangular tensors

open access: yesJournal of Inequalities and Applications, 2017
An S-type singular value inclusion set for rectangular tensors is given. Based on the set, new upper and lower bounds for the largest singular value of nonnegative rectangular tensors are obtained and proved to be sharper than some existing results. Numerical examples are given to verify the theoretical results.
openaire   +4 more sources

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