Results 101 to 110 of about 10,575,338 (382)

Hierarchical Markov model used in the reliability assessment and management of low-voltage switchgear

open access: yesAdvances in Mechanical Engineering, 2017
In this article, the reliability assessment and management of low-voltage switchgear was introduced based on a hierarchical Markov model. First, the reliability block diagram of motor control center was established by actual circuit.
Jingqin Wang   +3 more
doaj   +1 more source

Usability of a 5G Fronthaul Based on a DML and External Modulation for M-QAM Transmission Over Photonically Generated 40 GHz

open access: yesIEEE Access, 2020
In this paper, we numerically and experimentally present the bandwidth constraints of a cost-effective 5G mobile fronthaul based on a directly-modulated laser for data modulation and a Mach-Zehnder modulator-based optical double sideband with carrier ...
Luis Vallejo   +5 more
doaj   +1 more source

Achievable Transverse Cylindrical Electromagnetic Mode [PDF]

open access: yesProgress In Electromagnetics Research Letters, Vol. 24, 59-68, 2011, 2011
The system of Maxwell equations with an initial condition in a vacuum is solved in a cylindrical coordinate system. It derives the cylindrical transverse electromagnetic wave mode in which the electric field and magnetic field are not in phase. Such electromagnetic wave can generate and exist in actual application, and there is no violation of the law ...
arxiv  

Presentation of the electromagnetic field in introductory physics textbooks and consequences for its teaching [PDF]

open access: yesarXiv, 2023
Textbooks play a fundamental role in teaching and learning in school science classrooms. In this paper we investigate the presentation of the nature of the electromagnetic field in a dozen of the world's most popular introductory university physics textbooks.
arxiv  

Angular momentum and torque described with the complex octonion

open access: yes, 2014
The paper aims to adopt the complex octonion to formulate the angular momentum, torque, and force etc in the electromagnetic and gravitational fields.
Weng, Zi-Hua
core   +2 more sources

Principles of optics : electromagnetic theory of propagation, interference and diffraction of light

open access: yes, 1999
Historical introduction 1. Basic properties of the electromagnetic field 2. Electromagnetic potentials and polarization 3. Foundations of geometrical optics 4. Geometrical theory of optical imaging 5. Geometrical theory of aberrations 6.
M. Born, Emil Wolf, Eugene Hecht
semanticscholar   +1 more source

Regulation of osteogenic differentiation of human adipose-derived stem cells by controlling electromagnetic field conditions

open access: yesExperimental and Molecular Medicine, 2013
Many studies have reported that an electromagnetic field can promote osteogenic differentiation of mesenchymal stem cells. However, experimental results have differed depending on the experimental and environmental conditions.
K. S. Kang   +5 more
semanticscholar   +1 more source

Wearable Haptic Feedback Interfaces for Augmenting Human Touch

open access: yesAdvanced Functional Materials, EarlyView.
The wearable haptic feedback interfaces enhance user experience in gaming, social media, biomedical instrumentation, and robotics by generating tactile sensations. This review discusses and categorizes current haptic feedback interfaces into force, thermal, and electrotactile stimulation‐based haptic feedback interfaces, elucidating their current ...
Shubham Patel   +3 more
wiley   +1 more source

Demonstration of a Hybrid FSO/VLC Link for the Last Mile and Last Meter Networks

open access: yesIEEE Photonics Journal, 2019
In this paper, a hybrid free-space optical and visible light communication (FSO/VLC) system was experimentally demonstrated as a solution to overcome the last mile and last meter access networks bandwidth bottleneck. We evaluate the system performance of
Petr Pesek   +4 more
doaj   +1 more source

Gravitational and electromagnetic emission by magnetized coalescing binary systems

open access: yes, 2011
We discuss the possibility to obtain an electromagnetic emission accompanying the gravitational waves emitted in the coalescence of a compact binary system.
Capozziello, S.   +4 more
core   +1 more source

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