Results 71 to 80 of about 524,074 (324)

Dynamical Equations of Spinning Particles: Feynman's Proof

, 1993
In this letter, we discuss the extension of Feynman's derivation of the equation of motion to the case of spinning particles. We show that a spinning particle interacts only with the electromagnetic and gravitational fields.
Bargmann, Chihong Chou, Chou, Dyson, Frenkel, Jackiw, Khriplovich, Lee, Papapetrou, Plyushchay, Ravndal, Shon, Soni, Stern, Tanimura, van Holten, Volkov, Yee   +17 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Gradient‐based eigenvalue optimization for electromagnetic cavities with built‐in mode matching

IET Science, Measurement & Technology
Shape optimization with respect to eigenvalues of a cavity plays an important role in the design of new resonators or in the optimization of existing ones. This paper proposes a gradient‐based optimization scheme, which is enhanced with closed‐form shape
Anna Ziegler, Robert Hahn, Victoria Isensee, Anh Duc Nguyen, Sebastian Schöps   +4 more
doaj   +1 more source

Neutron Acceleration in Uniform Electromagnetic Fields

, 1993
The question as to whether neutron acceleration can occur in uniform electromagnetic fields is examined. Although such an effect has been predicted using the canonical equations of motion some doubt has been raised recently as to whether it is in ...
A. Cimmino, C. R. Hagen, J. Anandan, J. Anandan, J. Anandan, J. Anandan, J. Anandan, J. Anandan, J. Anandan, J. Schwinger, R. C. Casella, S. Coleman, W. Shockley, Y. Aharonov, Y. Aharonov   +14 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Magneto-thermally coupled field simulation of homogenized foil winding models

Advanced Modeling and Simulation in Engineering Sciences
Foil windings have, due to their layered structure, different properties than conventional wire windings, which make them advantageous for high frequency applications. Both electromagnetic and thermal analyses are relevant for foil windings.
Silas Weinert, Jonas Bundschuh, Yvonne Späck-Leigsnering, Herbert De Gersem   +3 more
doaj   +1 more source

Scientific evidence invalidates health assumptions underlying the FCC and ICNIRP exposure limit determinations for radiofrequency radiation: implications for 5G

Environmental Health, 2022
In the late-1990s, the FCC and ICNIRP adopted radiofrequency radiation (RFR) exposure limits to protect the public and workers from adverse effects of RFR.
International Commission on the Biological Effects of Electromagnetic Fields (ICBE-EMF)
doaj   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

Advanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui, S. M. Hossein Hejazi, Jan Navrátil, Hana Kmentová, Petr Bábor, Olivier Henrotte, Luca Mascaretti, Matteo Bisetto, Stephen K. Sanders, Andrea Schirato, Michal Otyepka, Piotr Błoński, Tiziano Montini, Radek Zboril, Paolo Fornasiero, Alessandro Alabastri, Alberto Naldoni, Stepan Kment   +17 more
wiley   +1 more source

SYSTEM-ACTIVE APPROACH TO STUDYING PHASE TRANSITIONS DURING VOLUME HEATING OF HYDROCARBON SYSTEMS WITH CHEMICAL REACTIONS IN AN ELECTROMAGNETIC FIELD [PDF]

, 2021
А. Т. Галимова, М. А. Фатыхов   +1 more
openalex   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source