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Resultados 1377-1396 de 2397
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Limitations of simplifed models to predict soot formation in laminar flames
(2020) [Artigo de periódico]Soot formation and radiation are important aspects for combustion problems. In this work, numerical simulations of ethylene cofow laminar flames are used to evaluate soot formation and radiation processes under diferent ... -
Lithium implantation at low temperature in silicon for sharp buried amorphous layer formation and defect engineering
(2013) [Artigo de periódico]The crystalline-to-amorphous transformation induced by lithium ion implantation at low temperature has been investigated. The resulting damage structure and its thermal evolution have been studied by a combination of ... -
Load cells in force sensing analysis - theory and a novel application
(2010) [Artigo de periódico] -
Local stabilization of discrete-time linear systems with saturating controls : an LMI-Based approach
(2001) [Artigo de periódico]This note deals with the problem of local stabilization of linear discrete-time systems subject to control saturation.Alinear matrix inequalitie- based framework is proposed in order to compute a saturating state feedback ... -
Local stabilization of linear systems under amplitude and rate saturating actuators
(2003) [Artigo de periódico]This note addresses the problem of local stabilization of linear systems subject to control amplitude and rate saturation. Considering the actuator represented by a first-order system subject to input and state saturation, ... -
Longitudinal distribution of extreme pressures in a hydraulic jump downstream of a stepped spillway
(2017) [Artigo de periódico]The overflow system of a dam safely controls the water level of a reservoir. The design of these structures should predict the damage caused by the action of the turbulent flow to which they are subject to. The combination ... -
Long-range correlations and natural time series analyses from acoustic emission signals
(2022) [Artigo de periódico]This work focuses on analyzing acoustic emission (AE) signals as a means to predict failure in structures. There are two main approaches that are considered: (i) long-range correlation analysis using both the Hurst (H) and ... -
Low energy consumption synthesis of nanostructured TiO2 particles by combining oxidant peroxide method and microwave-assisted hydrothermal treatment
(2016) [Artigo de periódico]Titanium dioxide with high specific surface area in the crystalline anatase phase is a promising material for environmental applications. In this work, TiO2 with good applicability for photocatalytic processes has been ... -
Low temperature sensitivity CMOS transconductor based on GZTC MOSFET condition
(2016) [Artigo de periódico]Complementary Metal Oxide Semiconductor (CMOS) Transconductors, or Gm cells, are key building blocks to implement a large variety of analog circuits such as adjustable filters, multipliers, controlled oscillators and ... -
Low-voltage, low-area, nW-power CMOS digital-based biosignal amplifier
(2022) [Artigo de periódico]This paper presents the operation principle and the silicon characterization of a power efficient ultra-low voltage and ultra-low area fully-differential, digital-based Operational Transconductance Amplifier (OTA), suitable ... -
Macro-turbulent characteristcs of pressures in hydraulic jump formed downstream of a stepped spillway
(2017) [Artigo de periódico]Stilling basins are structures built at the base of the spillway to dissipate energy, by means of a hydraulic jump. Hydraulic jump is a turbulent phenomenon that causes large pressure fluctuation in the stilling basin ... -
Magnetic gearing electromagnetic concepts
(2017) [Artigo de periódico]In this paper the magnetic geared machines electromagnetic concepts are introduced. The magnetic gear modulation mechanism which becomes possible rotors of different polarities produce torque is explained, through the use ... -
MAICAPI - Metodologia para Avaliação de Impactos e Custos Ambientais em Processos Industriais : estudo de caso
(2006) [Artigo de periódico] -
Main results of an energy audit in a milk processing industry in Taquara, Southern Brazil
(2018) [Artigo de periódico]The industrial energy diagnosis presented in this work occurred in a milk product cooperative, from an analysis of energy consumption in the main milk industrialization and a diagnosis of energy end uses of lighting and ... -
Making java work for microcontroller applications
(2001) [Artigo de periódico] -
Manifestação fotocrômica através da geração de centros de cor em fibras de diferentes óxidos
(2021) [Artigo de periódico]Propriedades ópticas compreendem a resposta de um material quando submetido à radiação eletromagnética e, em particular a luz visível. Luz, calor (ou energia radiante), radar, ondas de rádio e raios-X são todas formas de ... -
Manufacture of custom-made cranial implants from DICOM® images using 3D printing, CAD/CAM technology and incremental sheet forming
(2014) [Artigo de periódico]Introduction: This work aims to pre-operatively manufacture custom-made low-cost implants and physical models (‘biomodels’) of fractured skulls. The pre-operative manufacturing of biomodels and implants allows physicians ... -
Manufatura de implante craniano customizado utilizando impressão 3D e estampagem incremental de chapas
(2014) [Artigo de periódico]O objetivo deste trabalho é fabricar modelos físicos de crânios fraturados por impressão 3D e implantes pré-cirúrgicos personalizados em chapa de titânio puro grau 2. A fabricação antecipada do modelo e do implante permite ... -
Man vs. machine : predicting hospital bed demand
(2020) [Artigo de periódico]Background: The recent literature reports promising results from using intelligent systems to support decision making in healthcare operations. Using these systems may lead to improved diagnostic and treatment protocols ... -
Mapas conceituais de projeto : uma ferramenta para projetar objetos de aprendizagem significativa
(2017) [Artigo de periódico]Este artigo apresenta uma metodologia de projeto de objetos de aprendizagem significativa chamada Projeto Baseado em Trajetórias de Aprendizagem (PBTA). Esta metodologia considera uma metáfora onde os conhecimentos prévios ...