Results 131 to 140 of about 1,089,305 (292)
Advanced Engineering Materials, EarlyView.The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
Olhar de Professor, 2009 Neste texto, apresentam-se algumas hipóteses com as quais se pretende contribuir para a redefinição dos pressupostos teórico-metodológicos da didática. A sugestão é de um ideário político-pedagógico comprometido em fortalecer os papéis que educadores e ...
Oswaldo Alonso Rays
doaj
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Formação de professores: uma alternativa de dinâmica curricular
Educação (Santa Maria. Online), 2004 No texto relata-se, em forma de síntese, uma alternativa de dinâmica curricular em andamento, elaborada entre os anos de 1999 e 2002, para a formação de professores.
Oswaldo Alonso Rays
doaj
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Ensino-Pesquisa-Extensão: notas para pensar a indissociabilidade
Revista Educação Especial, 2012 O texto pretende, de forma concisa, analisar as tentativas de junção entre o ensino, a pesquisa e a extensão em instituições de superior. Propõe o entendimento dos conceitos de indissociabilidade, extensão, pesquisa e ensino, a partir de uma perspectiva ...
Oswaldo Alonso Rays
doaj
Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source
Interaction of two parenchyma ray types regulates redwood heartwood deposition. [PDF]
Sci RepChin ARO +8 more
europepmc +1 more source
Advanced Engineering Materials, EarlyView.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
wiley +1 more source