Results 31 to 40 of about 25,997 (250)
Uma teoria formal de funções tonais generalizadas
Orfeu, 2022 Tradução do seminal artigo A Formal Theory of Generalized Tonal Functions de David Lewin, publicado em 1982, que prefigura algumas ideias mais tarde desenvolvidas em Generalized Musical Intervals and Transformations (LEWIN, 1987) e que dariam origem à ...
Felipe Defensor
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On the Initial-Value Problem in the Lifshitz--Slyozov--Wagner Theory of Ostwald Ripening [PDF]
SIAM Journal on Mathematical Analysis, 2000 21 pages, LaTeX2e with amsfonts ...
Barbara Niethammer, Robert L. Pego
openaire +3 more sources
Advanced Materials Technologies, EarlyView.The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin +5 more
wiley +1 more source
Revista Árvore, 2010 Os objetivos deste trabalho foram estimar e avaliar a dimensão fractal da rede de drenagem da bacia hidrográfica do Caeté, em Alfredo Wagner, SC, a partir de diferentes métodos, com o propósito de caracterizar as formas geomorfológicas irregulares.
Leandro Redin Vestena, Masato Kobiyama
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Data‐Driven Bulldozer Blade Control for Autonomous Terrain Leveling
Advanced Robotics Research, EarlyView.A simulation‐driven framework for autonomous bulldozer leveling is presented, combining high‐fidelity terramechanics simulation with a neural‐network‐based reduced‐order model. Gradient‐based optimization enables efficient, low‐level blade control that balances leveling quality and operation time.
Harry Zhang +5 more
wiley +1 more source
Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement
Advanced Science, EarlyView.The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang +7 more
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Advanced Science, EarlyView.The fundamental nature of anion storage in p‐type organic cathodes is elucidated using rigid poly(arylamine) frameworks. This study reveals a hybrid covalent‐ionic mechanism for anion‐π+ interactions, driven by synergistic orbital hybridization and electrostatic attraction.
Tiantian She +7 more
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Microstructural development and evolution of liquid phase sintered Cr-Cu composites [PDF]
Science of Sintering, 2007 Features of the microstructure formation of Cr-Cu composites under impregnation followed by liquid phase sintering of reduced and electrolytic chromium powders at 1200°C in a vacuum of (2-4)×10-3Pa have been studied.
Khomenko E. +3 more
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Al─N Co‐Doped LLZO Solid Electrolytes via One‐Step Sintering: Toward High Ionic Conductivity
Advanced Science, EarlyView.Al–N co‐doped LLZO solid electrolytes were prepared via a one‐step sintering process, which not only simplifies fabrication process, but also diminishes Li loss during high‐temperature sintering in conventional fabrication process. The Al–N co‐doped LLZO achieves a high ionic conductivity of 2.19 × 10−3 S cm−1 because the co‐doping reduces the energy ...
Hao Zhang +9 more
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Advances in Materials Science and Engineering, 2015 The Ostwald ripening process was studied in Fe0.75Ni0.10Al0.15 and Fe0.74Ni0.10Al0.15Cr0.01 alloys after aging at 750, 850, and 950°C for different times. The microstructural evolution shows a rounded cube morphology (Fe, Ni)Al β′ precipitates aligned in
N. Cayetano-Castro +5 more
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