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Resultados 1101-1120 de 2397
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Formation of hydrogen blisters during the solution treatment for aluminum alloys
(2021) [Artigo de periódico]The solution treatment of aluminum alloys can be restricted by the presence of porosity defects caused by the moisture present in the process or by the hydrated front on the material surface. Hydrogen blisters cause ... -
Formulação e caracterização de potenciais filamentos compósitos de PLA e talos de tabaco para aplicação em manufatura aditiva
(2021) [Artigo de periódico]A tecnologia de fabricação por filamento fundido (FFF) utilizando polímeros como PLA e ABS é bem conhecida. Contudo, o desenvolvimento de filamentos compósitos para esta tecnologia de manufatura aditiva, bem como a ... -
Formulation and characterization of poloxamer 407® : thermoreversible gel containing polymeric microparticles and hyaluronic acid
(2013) [Artigo de periódico]The influence of the composition and preparation method on the sol–gel transition temperature (Tsol–gel) and rheological response of poloxamer-based formulations was determined. Manual and more complex mechanical stirring ... -
Formulation of reference solutions for compaction process in sedimentary basins
(2020) [Artigo de periódico]This paper is devoted to the development of semianalytical solutions for the deformation induced by gravitational compaction in sedimentary basins. Formulated within the framework of coupled plasticity–viscoplasticity at ... -
Fósforo reativo : arraste superficial sob chuvas simuladas para diferentes coberturas vegetais
(2012) [Artigo de periódico]O fósforo é um elemento químico chave para a qualidade da água, agindo principalmente como gatilho desencadeador das florações algais. A principal fonte de fósforo nas pequenas bacias rurais advém da agricultura feita nas ... -
Fotoatividade e capacidade de absorção óptica por fibras cerâmicas de TIO2 e de TiO2/WO3 obtidas por electrospinning
(2021) [Artigo de periódico]Várias propriedades ópticas nos materiais são determinadas por imperfeições, por exemplo aquelas que dão origem à atividade de cor, são ocasionadas por processos de absorção e emissão eletrônica em íons de impureza e outros ... -
Fracture toughness evaluation of supermartensitic stainless steel submitted to cathodic protection in seawater environment
(2008) [Artigo de periódico]Os aços inoxidáveis supermartensíticos (AIS) vêm sendo aplicados em linhas de condução na indústria de petróleo e gás aparecendo como uma alternativa aos aços inoxidáveis duplex e aos aços carbono com uso de inibidores. ... -
A framework for reliability assessment in expansion planning of power distribution systems
(2022) [Artigo de periódico]This article proposes a framework that uses analytical assessment of reliability to guide the expansion planning of power distribution systems (PDS) considering reliability criteria. The framework allows the estimation of ... -
A framework to improve churn prediction performance in retail banking
(2024) [Artigo de periódico]Managing customer retention is critical to a company’s proftability and frm value. However, predicting customer churn is challenging. The extant research on the topic mainly focuses on the type of model developed to predict ... -
A framework to select innovations in patents to improve temporary edge protection systems in buildings
(2017) [Artigo de periódico]This article presents a selection method of existing innovations in patents that propose improvements in Temporary Edge Protection Systems (TEPS). The method was divided into three stages. In stage 1, records were collected ... -
Free opening performance of steel ladle as a function of filler sand properties
(2016) [Artigo de periódico]The secondary steel refining process uses filler sand as a thermal insulating barrier that separates the liquid metal from direct contact with slide-gate system of the steel ladle. The effective use of this practice must ... -
Friction hydro pillar processing : characteristics and applications
(2015) [Artigo de periódico]The friction welding process is shown as an effective alternative compared to the conventional methods of joining materials, in particular Friction Hydro Pillar Processing (FHPP). With the use of automated equipment joints ... -
Friction stir welding for marine applications : mechanical behaviour and microstructural characteristics of Al-Mg-Si-Cu plates
(2019) [Artigo de periódico]Friction stir welding is a multipurpose solid-state joining process mainly used for aluminium and steel plates and frames. Friction stir welded non-ferrous metallic alloys, similar or dissimilar, in particular aluminium ... -
Full scale testing of fire performance on a house construction system assembled with sandwich steel and polyurethane structural panels
(2019) [Artigo de periódico]This paper contains the test results of a fire behavior test performed in a full scale house prototype built with 60 mm thick steel sandwich panels. Each panel was composed of two 6mm galvalume steel plates and a core of ... -
Fully coupled hydrological–hydrodynamic modeling of a basin–river–lake transboundary system in Southern South America
(2022) [Artigo de periódico]The Mirim and Patos Lagoons form the largest lagoon complex in South America. Wind is one of the dominant climatic elements of circulation and water levels in the basin. Therefore, we aimed to better understand the effects ... -
Functional-segment activity coefficient equation of state : F-SAC-Phi
(2019) [Artigo de periódico]COSMO-RS refinements and applications have been the focus of numerous works, mainly due to their great predictive capacity. However, these models do not directly include pressure effects. In this work, a methodology for ... -
Further development of small hydropower facilities will significantly reduce sediment transport to the Pantanal wetland of Brazil
(2020) [Artigo de periódico]Small hydropower (SHP) facilities, which are defined by installed capacities <10–50 MW, are increasingly being built around the world. SHPs are viewed as less environmentally harmful than larger dams, although there has ... -
Future water requirements for rice irrigation in the Pardo river basin (Brazil)
(2011) [Artigo de periódico]The objective of this research was to estimate the future water requirements for rice paddy irrigation in the Pardo River Basin (Brazil) taking into account the changes in cultivation systems that are likely to occur in ... -
Fuzzy heuristic control of an electrodynamic shaker in accelerated HALT/HASS tests
(2019) [Artigo de periódico]This study aims to develop and implement a control algorithm based on heuristic methods to be used in vibration-accelerated tests performed by an electrodynamic shaker for HALT (Highly Accelerated Life Tests) and HASS ... -
Fuzzy logic for structural system control
(2012) [Artigo de periódico]This paper provides some information and numerical tests that aims to investigate the use of a Fuzzy Controller applied to control systems. Some advantages are reported regarding the use of this controller, such as the ...