Results 91 to 100 of about 2,992,787 (257)

Ideais no produto cruzado parcial reduzido [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Matemática e Computação Científica, Florianópolis, 2011Dados um grupo G, uma C*-álgebra A e uma ação parcial ?
Cidral, Fabiano Carlos
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Farm labor scarcity and its uneven impacts on crop producers in the United States

American Journal of Agricultural Economics, EarlyView.
Abstract This study is the first to evaluate the impacts of farm labor scarcity on producers in the United States across different crop production systems. Between 2002 and 2017, we disentangle the effects of labor scarcity from the impacts of rising commodity demand, technological change, and supply of other inputs on labor market outcomes.
Srabashi Ray, Alexandra E. Hill, Iman Haqiqi, J. Edward Taylor, Thomas W. Hertel   +4 more
wiley   +1 more source

Toward a Behavioral Reserve Model in Amyotrophic Lateral Sclerosis

Annals of Neurology, EarlyView.
Objective Behavioral impairment is common in amyotrophic lateral sclerosis (ALS) and strongly affects autonomy, caregiver burden, and outcomes, yet predictors of vulnerability remain unclear. We investigated whether premorbid regulatory traits and socio‐educational exposures are associated with behavioral phenotypes in ALS within a behavioral reserve ...
Francesca Palumbo, Barbara Iazzolino, Cristina Moglia, Umberto Manera, Enrico Matteoni, Sara Cabras, Giorgio Pellegrino, Emilio Minerva, Vita Passidomo, Rosario Vasta, Gabriele Mora, Fabrizio D’Ovidio, Antonio Canosa, Andrea Calvo, Adriano Chiò   +14 more
wiley   +1 more source

Construção de fractais no GeoGebra: uma aplicação da Álgebra Linear

REMAT
O objetivo deste trabalho é apresentar uma galeria de fractais gerados no GeoGebra usando o conceito de semelhança, próprio da  Álgebra Linear, o qual consiste em uma composição de transformações como a rotação, o deslocamento e a homotetia.
Cecilia Orellana Castro, Manolo Rodriguez Heredia, Ruan Lion Costa de Souza   +2 more
doaj   +1 more source

Álgebra

, 2012
Esta coleção reune objetos interativos para o ensino da álgebra, desenvolvidos por diversos autores na plataforma Descartes, todos eles em língua espanhola.
Fábio Marson Ferreira - Colégio Móbile - São Paulo - SP,
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Research on Heat Transfer Enhancement of Spiral Grooved Tube Heat Exchangers Based on CFD and Artificial Intelligence

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
wiley   +1 more source

Álgebra Linear

Linear Algebra is a branch of mathematics that emerged from the detailed study of systems of linear equations, whether algebraic or differential. Linear algebra uses some fundamental concepts and structures in Mathematics such as vectors, vector spaces ...
Carvalho, Marcelo Henriques de
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Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Hybrid Inertial–Centrifugal Gas–Liquid Separator: CFD‐Driven Optimization Using Coupled Discrete Phase and Wall‐Film Modeling With Response Surface Methodology

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Efficient removal of liquid aerosols from compressed gas streams is essential in chemical and energy processes. Conventional separators relying on a single mechanism (inertial or centrifugal) struggle to capture both fine and coarse droplets simultaneously.
Son Ung Kang, Phyong Jon Thak, Kyong Jun Ri, Chung Hyok Choe   +3 more
wiley   +1 more source

Transformações lineares e isomorfismos: um exemplo em criptografia [PDF]

, 2009
TCCP (especialização) - Universidade Federal de Santa ...
Silva, Lúcio Hélio Oliveira da
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