Results 41 to 50 of about 2,631 (242)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

A Route toward Quantum Gravity through the Imaginary-Time Field Theory [PDF]

, 2014
A possible way toward the quantization of a weak gravitational field inspired by the imaginary-time field theory is discussed. The analogies of the general relativity in the canonical formulation with the thermodynamic geometry and superfluids are also ...
Huang, Yi-Cheng
core  

Auxiliary field Monte-Carlo for charged particles

, 2003
This article describes Monte-Carlo algorithms for charged systems using constrained updates for the electric field. The method is generalized to treat inhomogeneous dielectric media, electrolytes via the Poisson-Boltzmann equation and considers the ...
Maggs, A. C.
core   +1 more source

Non-contact electromagnetic control of torsional vibrations of a rigid cylinder

Nonlinear Dynamics
AbstractThe successful deployment of offshore wind turbines hinges on the installation process, particularly the temporary suspension of the turbine components during assembly. External factors or imbalances in control forces can induce vibrations, emphasizing the need for precise control, especially in the torsional mode, to ensure the delicate ...
Panagiota Atzampou, Peter C. Meijers, Apostolos Tsouvalas, Andrei V. Metrikine   +3 more
openaire   +1 more source

Adaptive Twisting Metamaterials

Advanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri, Maria L. Gatto, Edoardo Mancini, Donato Orlandi, Daniele Cortis, Marco Sasso, Shanmugam Kumar   +6 more
wiley   +1 more source

Recovering Recovery: On the relationship between gauge symmetry and Trautman Recovery [PDF]

, 2017
This paper (i) uncovers a foundational relationship between the `gauge symmetry' of a Newton-Cartan theory and the celebrated Trautman Recovery Theorem; and (ii) explores its implications for recent philosophical work on Newton-Cartan ...
Teh, Nicholas
core  

Gravito-electromagnetic analogies

, 2014
We reexamine and further develop different gravito-electromagnetic (GEM) analogies found in the literature, and clarify the connection between them. Special emphasis is placed in two exact physical analogies: the analogy based on inertial fields from the
A Balakin, A Komar, A Matte, A Papapetrou, C Cherubini, C Corda, C Lozanovski, C Lozanovski, C Tsagas, C Tsagas, CBG McIntosh, Charles W Misner, D Bini, D Bini, D Bini, D Lynden-Bell, D Mason, D Nichols, David C Kay, DH Tchrakian, E Massa, E Massa, E Massa, EG Harris, FAE Pirani, FAE Pirani, FC Mena, G Rizzi, G Rizzi, GFR Ellis, GFR Ellis, H Elst Van, H Goldstein, I Ciufolini, I Ciufolini, I Ciufolini, I Ciufolini, J Barrow, J Costa, J Garecki, J Kaplan, JJ Ferrando, JM Bardeen, JM Bardeen, JMM Senovilla, José Natário, José Natário, K Nordtvedt, K Nordtvedt, Kip S Thorne, L Bel, L Bel, L Bel, L Iorio, L Landau, L Wylleman, L Wylleman, L. Filipe O. Costa, LF Costa, M Mathisson, M Nouri-Zonoz, M Soffel, ML Ruggiero, ML Ruggiero, N Drukker, Naresh Dadhich, O Semerák, O Semerák, O Semerák, O Semerák, PKS Dunsby, QG Bailey, R Maartens, RM Wald, RM Wald, RT Jantzen, S Deser, S Gralla, S Hawking, SJ Clark, SM Carroll, SW Hawking, T Damour, TW Baumgarte, TW Murphy Jr, W Campbell, W Campbell, WB Bonnor, WG Dixon, WG Dixon   +89 more
core   +1 more source

Resolving Complex Multiscale Structure of Magneto‐ and Electroactive Polymer Composites With an Ionic Liquid

Advanced Materials, EarlyView.
Multiscale ionic liquid segregation into nano‐sized domains in the unconfined amorphous polymer phase and into micron‐sized pores enables a coupled magneto‐ and electroactive responses. ABSTRACT A multiscale understanding of the structure of ionogels – nanoparticle‐free polymer composites incorporating ionic liquids – is essential for enhancing their ...
Andrey Shibaev, Jon Maiz, Viktor Petrenko, Amaia Iturrospe, Josu Fernández Maestu, José María Porro, Mariano Barrado, Laura Casado, Joachim Kohlbrecher, Petr Shvets, Evgeny Modin, Ana Sofia Castro, Andrey Chuvilin, José María De Teresa, Daniela M. Correia, Arantxa Arbe, Senentxu Lanceros‐Méndez   +16 more
wiley   +1 more source

Geometric properties of electromagnetic waves [PDF]

, 2007
This work studies geometrical properties of electromagnetic wave propagation. The work starts by studying geometrical properties of electromagnetic Gaussian beams in inhomogeneous anisotropic media. These are asymptotical solutions to Maxwell's equations
Dahl, Matias F.
core  

Superconductors are topologically ordered

, 2004
We revisit a venerable question: what is the nature of the ordering in a superconductor? We find that the answer is properly that the superconducting state exhibits topological order in the sense of Wen, i.e.
Anderson, Anderson, Andersson, Balachandran, Balents, Bardakci, Bergeron, Blau, Buchholz, de Gennes, Dirac, Elitzur, Fradkin, Fradkin, Frohlich, Fröhlich, Goldhaber, Haldane, Kennedy, Kivelson, Kivelson, Krauss, Lecheminant, Moessner, Moessner, Pines, Read, Reznik, S.L. Sondhi, Senthil, Senthil, Swieca, T.H. Hansson, Vadim Oganesyan, Weinberg, Wen, Wen, Wen, Wen, Wen, Wen, Wen, Wen, Zhang, ’t Hooft   +44 more
core   +1 more source