Results 51 to 60 of about 58,163 (177)

Structural Design and Analysis of Hybrid Drive Multi-Degree-of-Freedom Motor

Micromachines, 2022
Piezoelectric-driven multi-degree-of-freedom motors can turn off self-lock, withstand high and low temperatures, are small in size and compact in structure, and can easily achieve miniaturization.
Zheng Li, Hui Zhao, Xuetong Chen, Shenhui Du, Xiaoqiang Guo, Hexu Sun   +5 more
doaj   +1 more source

Coupling and computation of electromagnetism and mechanics [PDF]

, 2019
Accurate coupling of electromagnetism and mechanics is of interest in computations of transducers such as piezoelectric, pyroelectric, electromagnetic sensors and actuators.
Abali, Bilen Emek
core   +1 more source

Fractional electromagnetic waves [PDF]

2011 11th International Conference on Laser and Fiber-Optical Networks Modeling (LFNM), 2011
In The present work we consider the electromagnetic wave equation in terms of the fractional derivative of the Caputo type. The order of the derivative being considered is 0<λ≤1. A new parameter σ is introduced which characterizes the existence of the fractional components in the system.
Rosales, J. J., Guía, M., Gómez, J. F., Tkach, V. I.   +3 more
openaire   +2 more sources

Estruturas de ondas lentas: análise e medidas em laboratório

Revista Brasileira de Ensino de Física
Estruturas de onda lenta possuem aplicações em vários setores tais como aceleradores lineares, usados em aplicações médicas e em física nuclear; em válvulas eletrônicas e em filtros de micro-ondas.
Marcelo Bender Perotoni, Stilante Koch Manfrin   +1 more
doaj   +1 more source

Deterministic Aided STAP for Target Detection in Heterogeneous Situations

International Journal of Antennas and Propagation, 2013
Classical space-time adaptive processing (STAP) detectors are strongly limited when facing highly heterogeneous environments. Indeed, in this case, representative target free data are no longer available.
J.-F. Degurse, L. Savy, S. Marcos, J.-Ph. Molinié   +3 more
doaj   +1 more source

Plasmonic Optical Fiber-Grating Immunosensing: A Review

Sensors, 2017
Plasmonic immunosensors are usually made of a noble metal (in the form of a film or nanoparticles) on which bioreceptors are grafted to sense analytes based on the antibody/antigen or other affinity mechanism.
Tuan Guo, Álvaro González-Vila, Médéric Loyez, Christophe Caucheteur   +3 more
doaj   +1 more source

Symmetries and pre-metric electromagnetism [PDF]

, 2005
The equations of pre-metric electromagnetism are formulated as an exterior differential system on the bundle of exterior differential 2-forms over the spacetime manifold.
Bateman, Bluman, Bluman, Cartan, Cartan, Choquet-Bruhat, Cunningham, Delphenich, Delphenich, Delphenich, Dieudonné, Engstrom, Fujimoto, Goldschmidt, Guillemin, Harrison, Hehl, Kiehn, Kottler, Kumpera, Kähler, Landau, Lang, Malgrange, Miwa, Olver, Ovsiannikov, Post, Singer, Sternberg, Van Dantzig   +30 more
core   +2 more sources

Gravito-electromagnetism

, 1998
We develop and apply a fully covariant 1+3 electromagnetic analogy for gravity. The free gravitational field is covariantly characterized by the Weyl gravito-electric and gravito-magnetic spatial tensor fields, whose dynamical equations are the Bianchi ...
Anderson P R, Barnes A, Bassett B A, Bel L, Bel L, Bonnor W B, Braginsky V B, Brill D R, Bruce A Bassett, Demianski M, Deser S, Deser S, Dolan P, Dowker J S, Dowker J S, Dunsby P K S, Ehlers J, Ellis G F R, Ellis G F R, Ellis G F R, Geroch R, Hogan P, Jantzen R T, Kramer D, Lynden-Bell D, Maartens R, Maartens R, Maartens R, Maartens R, Matte A, McIntosh C B G, Montonen C, Olive D I, Penrose R, Penrose R, Polchinski J, Roy Maartens, Seiberg N, Trümper M, Vafa C, Wheeler J A, Wheeler J A, Zakharov V D, Zee A   +43 more
core   +2 more sources

It's Hard to Learn How Gravity and Electromagnetism Couple

, 2010
We construct the most general effective Lagrangian coupling gravity and electromagnetism up to mass dimension 6 by enumerating all possible non-minimal coupling terms respecting both diffeomorphism and gauge invariance.
C. Misner, C. M. Will, David M. Jacobs, Glenn D. Starkman, I. H. Stairs, S. Weinberg, Yi-Zen Chu, Yifung Ng   +7 more
core   +1 more source

Integrating classification and regression learners with bioimpedance methods for estimating weight status in infants and juveniles from the southern Cuba region

BMC Pediatrics
Objective The search for other indicators to assess the weight and nutritional status of individuals is important as it may provide more accurate information and assist in personalized medicine.
Taira Batista Luna, Jose Luis García Bello, Agustín Garzón Carbonell, Ana de la Caridad Román Montoya, Alcibíades Lara Lafargue, Héctor Manuel Camué Ciria, Yohandys A. Zulueta   +6 more
doaj   +1 more source