Results 81 to 90 of about 26,041 (254)

Avaliação da introdução de tecnologias no sistema de produção de gado de corte no Pantanal: análise de eficiência Evaluation of technology introduction in a beef cattle production system in Pantanal wetlands: analysis of efficiency

Revista Brasileira de Zootecnia, 2006
Utilizando-se a metodologia de análise envoltória de dados (DEA), analisou-se, neste estudo, a eficiência de um sistema de produção no qual foram implantadas tecnologias ao longo de oito anos (1995-2002).
Urbano Gomes Pinto de Abreu, Paulo Sávio Lopes, Antonio José M. dos Santos Baptista, Robledo de Almeida Torres, Heleno do Nascimento Santos   +4 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Determinants of Knowledge Production in European Universities [PDF]

Ekonomika a Spoločnosť
This paper investigates the knowledge production function (KPF) of European universities, examining the relationship between human resources, financial inputs, and scientific output as measured by academic publications.
Juraj Šimčisko
doaj   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

Advanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang, Adrian Ehrenhofer, Thomas Wallmersperger   +2 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Elasticities of substitution and functional separability of the maquiladora industry

Estudios Fronterizos, 2013
Previous studies about the demand of productive factors of the Maquiladora Industry have focused in the labor demand. Such literature has advanced in two directions: specifying dynamic models of labor demand; or deriving the demand of productive factors ...
Jorge Ibarra Salazar, Francisco García Pérez   +1 more
doaj  

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

ANALISIS EFISIENSI INDUSTRI KECIL BERDASARKAN ANALISIS STOCHASTIC FRONTIER

Benefit Jurnal Manajemen dan Bisnis, 2013
The aimed of this study is to analyze the achievement of technical efficiency in small businesses. The input factors that were analyzed are capital and worker, while the output factor is the product of the firm. Analysis using stochastic frontier.
M. Farid Wajdi
doaj  

Continuous Stiffness Graded Metal–Ceramic Femoral Stems: UMAT‐Based Design and Finite Element Assessment

Advanced Engineering Materials, EarlyView.
Functionally graded metal–ceramic femoral stems are engineered through continuous UMAT‐based stiffness tailoring, eliminating discrete material interfaces while enhancing biomechanical compatibility. Low‐index power‐law gradation optimizes load transfer, reduces stress shielding, and controls implant–bone micromotion, highlighting a materials‐design ...
Rihem Nouira, Sameh Elleuch, Hanen Jrad
wiley   +1 more source