Results 71 to 80 of about 14,296 (285)

The electricity before Faraday. Part 2

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2004
This is the second and final part of this paper. The first part appeared in the former issue. This part deals with the period of the so-called Modern Age after the Renaissance, until the times of Faraday.
Gabriel Poveda Ramos
doaj   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Electricity and magnetism

open access: yes, 1985
Classic textbook introducing students to electricity and magnetism, widely considered the best undergraduate textbook on the subject ever ...
Purcell, Edward M
core  

Gender gap on concept inventories in physics: What is consistent, what is inconsistent, and what factors influence the gap?

open access: yesPhysical Review Special Topics. Physics Education Research, 2013
We review the literature on the gender gap on concept inventories in physics. Across studies of the most commonly used mechanics concept inventories, the Force Concept Inventory and Force and Motion Conceptual Evaluation, men’s average pretest scores are
Adrian Madsen   +2 more
doaj   +1 more source

Accelerated Discovery of Topological Spin Phase Diagrams in CrSBr Magnets Via High‐Throughput Optimization

open access: yesAdvanced Functional Materials, EarlyView.
Here, we develop a high‐throughput algorithm that accelerates the elucidation of phase diagrams of topological spin textures using limited computational resources at high numerical accuracy. Applying this framework to the van der Waals magnet CrSBr, we unveiled a hierarchy of previously unknown topological textures (domain‐wall bimerons, bimeron chains,
Andrew Lyall   +4 more
wiley   +1 more source

Physics 213: An Example of Faculty/Librarian Collaboration.

open access: yesIssues in Science and Technology Librarianship, 2006
The article presents information on the Physics 213: Thermodynamics, Electricity and Magnetism class at the Cornell University in Ithaca, New York state. There are 24 students enrolled in the class.
Patricia T. Viele
doaj   +1 more source

Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride

open access: yesAdvanced Functional Materials, EarlyView.
This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem   +15 more
wiley   +1 more source

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

open access: yesSHS 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   +2 more
doaj   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

open access: yesAdvanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Electricity and Magnetism to Volta

open access: yes, 2017
This article focuses on developments in electricity and magnetism up to the time of Alessandro Volta. Until the late 1600s electricity as a subject reduced to what has been aptly termed the ‘amber effect’.
Jed Z. Buchwald
core   +1 more source

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