Browsing by Title
Now showing items 146409-146428 of 269281
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Hybrid organic inorganic perovskite solar cells : analysis of performance and stability in reverse bias
(2021) [Thesis]Lead-halide perovskites show great promise for high-efficiency Si/perovskite tandem solar cells, with record efficiencies now surpassing 25 % in single junction. However, to reach commercialization, it is necessary for the ... -
Hybrid parallel programming : evaluation of OpenACC
(2013) [Work completion of graduation]OpenACC é uma nova especificação para uma API de programação paralela híbrida (CPU + GPU), na qual o programador utiliza diretivas de compilação para distribuir a execução do programa entre a CPU e a GPU. Em comparação a ... -
Hybrid polythiophene–clay exfoliated nanocomposites for ultracapacitor devices
(2012) [Journal article]Exfoliated nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT) and montmorillonite (MMT) have been prepared by in situ anodic polymerization, concentrations of clay ranging from 5% w/w to 50% w/w being included in ... -
Hybrid progenies of Bahiagrass : agronomic evaluation
(2022) [Journal article]Paspalum notatum Flüggeis one native forage grasses of southern Brazil. Through intraspecific hybridization, is possible generating progenies with variability for agronomic traits.The objective of this work was to evaluate ... -
Hybrids of Paspalum plicatulum × P. guenoarum : selection for forage yield and cold tolerance in a subtropical environment
(2021) [Journal article]Selection of improved genotypes is important for pasture-based feeding systems in subtropical regions. Our goal was to identify hybrids of Paspalum with enhanced forage yield and cold tolerance across 2 sites [Bagé and ... -
Hybrid system simulation to supply heated air to a solar food dryer
(2020) [Journal article]The intermittence of solar radiation, due to continuous rainy or cloudy days, is a limitation of simple and small solar dryers. These conditions often make them impossible to use. By including storage systems (thermal ... -
A hybrid zone of the genus Ctenomys : a case study in southern Brazil
(2012) [Journal article]We describe variation at microsatellite loci and the chromosomal polymorphisms of a hybrid population, and hybridizing populations of Ctenomys minutus (the minor tuco-tuco) from the coastal plain of Rio Grande do Sul, ... -
Hybris americana : a modernidade eclética de Luis Barragán e Lucio Costa
(2009) [Journal article] -
Hydration and anomalous solubility of the Bell-Lavis model as solvent
(2012) [Journal article]We address the investigation of the solvation properties of the minimal orientational model for water originally proposed by [Bell and Lavis, J. Phys. A 3, 568 (1970)]. The model presents two liquid phases separated by a ... -
Hydration and interactions between C3S and C3A polymorphs in the presence of different calcium sulfates
(2021) [Dissertation]Calcium sulfate is an important constituent in Portland cement nowadays. It is used to control the setting time of Portland cement. However, many questions about the role of calcium sulfate on the cement phases (C3A and ... -
Hydraulic and water quality model for a river network
(1978) [Thesis]A river network system consisting of branches and loops is sometimes complicated by downstream effects from tides, lakes, and because of this, management of water quality, sediment control, and floods, in such rivers is a ... -
Hydrobiidae (Gastropoda, Neotaenioglossa, Rissooidea) da planície costeira do Rio Grande do Sul, Brasil
(2003) [Thesis]A família Hydrobiidae, que apresenta maior diversidade entre os moluscos límnicos e estuarinos, com mais de 300 gêneros e cerca de mil espécies Recentes, constitui-se em um importante componente biótico de águas continentais. ... -
Hydrodynamic analysis of gravity net cage in open sea
(2020) [Complete work published in event] -
Hydrodynamic investigation to identify an optimal configuration of cylindrical porous structures applied to shellfish culture subject to transverse flow
(2019) [Complete work published in event] -
Hydrodynamic pressures on a stepped spillway with an aerator system subjected to different air flow rates
(2023) [Journal article]Aerator systems promote additional insertion of air into the flow and can reduce the risk of cavitation and consequent damage to hydraulic structures. This work analyzes the hydrodynamic pressures on the steps of a physical ... -
Hydrodynamics and suspended sediment transport in the Camboriú Estuary - Brazil : prejetty conditions
(2009) [Journal article]As trocas de água e materiais através das desembocaduras de estuários são de difícil quantificação e são de fundamental importância para o entendimento do funcionamento de estuários e da zona costeira. A hidrodinâmica e ... -
Hydrogel films with pine essential oil have the potential to be used as wound dressing
(2024) [Contribution to periodical]Pesquisa desenvolvida no Programa de Pós-graduação em Engenharia Química, da UFRGS, cria filmes de hidrogéis com óleos de lavanda e pinus para utilização como curativos, pela sua biocompatibilidade. -
Hydrogels containing genistein loaded nanoemulsions : effect of gelling agents on skin retention and antioxidant activity
(2010) [Abstract published in event] -
Hydrogels containing redispersible spray-dried melatonin-loaded nanocapsules : a formulation for transdermal-controlled delivery
(2012) [Journal article]The aim of the present study was to develop a transdermal system for controlled delivery of melatonin combining three strategies: nanoencapsulation of melatonin, drying of melatonin-loaded nanocapsules, and incorporation ... -
Hydrogen and deuterium incorporation and transport in hafnium-based dielectric films on silicon
(2004) [Journal article]Hydrogen and deuterium incorporation into nitrided and non-nitrided hafnium silicate films on Si during thermal annealing in 1H- and 2H-containing atmospheres was investigated. 1H profiling was accessed by means of nuclear ...
