Results 51 to 60 of about 965,238 (368)

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

Covariant jump conditions in electromagnetism [PDF]

, 2014
A generally covariant four-dimensional representation of Maxwell's electrodynamics in a generic material medium can be achieved straightforwardly in the metric-free formulation of electromagnetism.
Itin, Yakov
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Terahertz rectification in ring-shaped quantum barriers

Nature Communications, 2018
Many experiments have been performed that study rectification by exciting electrons to tunnel across a single quantum barrier. Here, the authors take a 2-dimensional approach by combining 2D closed-loop tunneling barriers with broken symmetry to enable ...
Taehee Kang, R. H. Joon-Yeon Kim, Geunchang Choi, Jaiu Lee, Hyunwoo Park, Hyeongtag Jeon, Cheol-Hwan Park, Dai-Sik Kim   +7 more
doaj   +1 more source

ETP/GDOP behavior study for N-sensors arrays in a multilateration radar system

Iteckne, 2009
In this paper, we evaluated the ETP (Expected Theoretical Precision) and GDOP (Geometric Dilution Of Precision) enhancement related to the number of sensors in a Multilateration radar system.
Iván Antonio Mantilla-Gaviria, Ruy Fernando Ruiz-Mojica, Juan Vicente Balbastre-Tejedor, Elías de los Reyes   +3 more
doaj   +1 more source

Gravitoelectromagnetism in a complex Clifford algebra

, 2005
A linear vector model of gravitation is introduced in the context of quantum physics as a generalization of electromagnetism. The gravitoelectromagnetic gauge symmetry corresponds to a hyperbolic unitary extension of the usual complex phase symmetry of ...
Baylis, Bel, Bianchi, Brillouin, Buchman, Campbell, Catoni, Cavalleri, Clark, Cruceanu, Cruceanu, Doran, Einstein, Erdem, Erdem, Erdem, Goldstein, Heaviside, Heaviside, Holzmüller, Jantzen, Kunstatter, Lambert, Lambert, Landau, Lasenby, Maartens, Majerník, Majerník, Majerník, Majerník, Mashhoon, Maxwell, Moffat, Pati, Penrose, Porteous, Raigorodski, Raigorodski, Richterek, Rindler, Ruggiero, S. Ulrych, Schwebel, Schwebel, Singh, Singh, Singh, Singh, Singh, Singh, Singh, Sobczyk, Tartaglia, Tisserand, Tisserand, Ulrych, Ulrych, Ulrych, Zhong, Zhong, Zhong   +61 more
core   +2 more sources

The classical geometrization of the electromagnetism [PDF]

, 2014
Following the line of the history, if by one side the electromagnetic theory was consolidated on the 19th century, the emergence of the special and the general relativity theories on the 20th century opened possibilities of further developments, with the
C. A. Duarte
semanticscholar   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Machine learning unveils surface refractive index dynamics in comb-like plasmonic optical fiber biosensors

Communications Engineering
The precise measurement of surface refractive index changes is crucial in biosensing, providing insights into bioreceptors–analytes interactions.
Hadrien Fasseaux, Médéric Loyez, Christophe Caucheteur   +2 more
doaj   +1 more source

An Examination of the Relationship between High School Students’ Self-efficacy Perceptions Concerning Electromagnetism and Their Academic Success

SHS Web of Conferences, 2018
In the study, “Magnetism and Electromagnetic Induction” topic, which is part of the unit titled Electricity and Magnetism within the 11th grade Physics program that came into effect in 2013.
Bezen Sevim, Aykutlu Işıl, Bayrak Celal   +2 more
doaj   +1 more source