Results 81 to 90 of about 144,871 (247)

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

E.L.U. de Agotamiento por esfuerzo torsor en elementos de hormigón armado [PDF]

, 2019
En este tema se estudia el comportamiento hasta rotura de piezas de hormigón armado sometida a esfuerzos torsores y se establece el modelo de cálculo para la determinación de la respuesta última ante esta ...
Troyano Moreno, Miguel
core   +1 more source

Resistance to Overdoping Allows Over 2000 S cm−1 Conductivity in P(g3BTTT) With Anion‐Exchange Doping

Advanced Materials, EarlyView.
Anion‐exchange doping of conjugated polymers is an effective way to achieve high conductivities. Here, we report over 2000 S cm−1 electrical conductivity for doped P(g3BTTT). In addition, we show that P(g3BTTT) sustains exceptionally high doping levels without any drop in the charge mobility.
Basil Hunger, Maximilian M. Horn, Eva Röck, Diego Rosas Villalva, Lize Bynens, Jochen Vanderspikken, Christina Kousseff, Silène Gobeil, Olivier Bardagot, Nesibe Akmanşen‐Kalayci, Sarah H. Tolbert, Iain McCulloch, Wouter Maes, Demetra Tsokkou, Natalie Banerji   +14 more
wiley   +1 more source

Optimización de hilos paralelos de lana y de acrílica/poliamida. [PDF]

, 1995
En el presente estudio se consideran las propiedades físico-mecánicas de los hilos paralelos con alma de lana y de acrilica-poliamida (90/10) recubiertos con mono o polifilamento de poliamida y se relacionan las mencionadas propiedades con los parámetros
Barella, A., Castellar Bertran, María Dolores, Manich i Bou, Albert Mª, Nunes, M.F.   +3 more
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Análisis de la dinámica de un grupo motobomba diesel: Implicaciones en las causas de rotura [PDF]

, 2004
En este artículo se analizan las causas de las averías sistemáticas que se producen en un grupo motobomba. Éstas consisten en la rotura de los rotores de la bomba (6 etapas) por la sección de admisión así como del cierre.
Becerra Villanueva, José Antonio, Carvajal Trujillo, Elisa, Chacartegui, Ricardo, Jiménez-Espadafor Aguilar, Francisco José, Muñoz Blanco, Antonio   +4 more
core  

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Abelian group in a topos of sheaves: torsion and essential extensions

International Journal of Mathematics and Mathematical Sciences, 1989
We investigate the properties of torsion groups and their essential extensions in the category AbShL of Abellan groups in a topos of sheaves on a locale. We show that every torsion group is a direct sum of its p-primary components and for a torsion group
Kiran R. Bhutani
doaj   +1 more source

Bilateral ovarian torsion with ovarian fusion in the setting of polycystic ovarian syndrome: A case report

Case Reports in Women's Health, 2019
Background: Adnexal torsion requires a high degree of suspicion in women presenting with pelvic pain. Polycystic ovaries are an infrequent cause of ovarian torsion but should be considered in cases without adnexal masses.
Rachel E. Warwar, Grant E. Schmidt
doaj   +1 more source