Results 101 to 110 of about 17,598,245 (223)

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Patellofemoral instability: evaluation by magnetic resonance imaging Instabilidade femoropatelar: avaliação por ressonância magnética

Revista Brasileira de Ortopedia, 2013
OBJECTIVE: To determine the contribution of magnetic resonance imaging (MRI) in evaluating patelofemoral instability. METHODS: 39 patients (45 knees) with patellar instability underwent knee magnetic resonance images between October 2009 and July 2011,
Patrícia Martins e Souza, Marcelo Sadock de Sá Gabetto, Marcelo Ganem Serrão, Luiz Antônio Martins Vieira, Diogo Cals de Oliveira   +4 more
doaj  

In vitro solubility and degradability of nitrogen in concentrate ruminant feeds

, 1993
Ten ruminant feeds were incubated either in situ or by four different in vitro methods: buffer alone (BF); buffer and protease (BP); strained and centrifuged rumen fluid (CR); strained rumen fluid (WR).
SUSMEL, Piero, STEFANON, Bruno, COLITTI, Monica, MILLS CR   +3 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Evaluation of pre-natal care from the perspective of different models in primary care Evaluación de atención prenatal bajo la perspectiva de los diferentes modelos en la atención primaria Avaliação da atenção pré-natal na perspectiva dos diferentes modelos na atenção primária

Revista Latino-Americana de Enfermagem, 2013
OBJECTIVES: to evaluate the quality of the pre-natal care delivered in primary care, comparing the traditional model and the Family Health Strategy. METHOD: a service evaluation study, grounded in the public health policies.
Renata Leite Alves de Oliveira, Cátia Regina Branco da Fonseca, Maria Antonieta de Barros Leite Carvalhaes, Cristina Maria Garcia de Lima Parada   +3 more
doaj  

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Ultrafast Synthesis of a Non‐Noble FeCoNiCrZn Multi‐Element Alloy Electrocatalyst for Alkaline Oxygen Evolution Reaction

Carbon Energy
The large‐scale implementation of electrocatalytic water splitting for green hydrogen production is hindered by the sluggish kinetics of the oxygen evolution reaction (OER), necessitating efficient and durable catalysts.
Yu Liang, Yu Lu, Jianghong Zhang, Zichen Xu, Mingzhen Xiu, Jiuyang Xia, Junrong Yue, Yifan Li, Yi Cui, Yingpeng Xie, Yizhong Huang, Guangwen Xu, Zhong‐Shuai Wu   +12 more
doaj   +1 more source

Hot corrosion of Co-Cr, Co-Cr-Al, and Ni-Cr alloys in the temperature range of 700-750 deg C [PDF]

, 1980
The effect of SO3 pressure in the gas phase on the Na2SO4 induced hot corrosion of Co-Cr, Ni-Cr, and Co-Cr-Al alloys was studied in the temperature range 700 to 750 C.
Meier, G. H., Chiang, K. T.
core  

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

Advanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik, Liliana I. Duarte, Malgorzata G. Makowska, Roland Brütsch, Andrej Bullemer, Ana Diaz, Mirko Holler, Andreas Menzel, Johannes Bertsch, Pavel Trtik   +9 more
wiley   +1 more source

Prevalence study of dermatoses referred to the phototherapy unit at the Dermatology Service of the Clinics Hospital of Porto Alegre, RS, Brazil Estudo de prevalência das dermatoses encaminhadas ao setor de fototerapia do ambulatório de dermatologia do Hospital de Clínicas de Porto Alegre, RS, Brasil

Anais Brasileiros de Dermatologia, 2013
BACKGROUND: Phototherapy consists of exposure to ultraviolet radiation for therapeutic reasons. Radiation is already used in dermatological practice, and many studies have already proved the beneficial effect of UV light treatment for chronic ...
Carolina Casara, Leticia Eidt, Vivian Cunha   +2 more
doaj