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Itens para a visualização no momento 41-50 of 50
Descrição Booleana para eventos celulares: construção de redes, topologia e análise dinâmica
(Universidade Federal de Santa Maria, 2012-01-13)
This work presents a methodology to describe the dynamics
and topology of biological regulatory networks through the application of graph
theory. We model these networks using Boolean rules and simulations performed
with ...
Balanço de água no ciclo da cultura de soja: representação no modelo de vegetação dinâmica Agro-IBIS
(Universidade Federal de Santa Maria, 2012-07-17)
Exchanges of water in the soil-plant-atmosphere are controlled by physical-hydric soils, which in turn are highly variable in space and very sensitive to the use and soil management, especially in an agroecosystem. ...
Propriedades eletrônicas e estruturais de nanoestruturas de carbono funcionalizadas para aplicação em sensores
(Universidade Federal de Santa Maria, 2012-01-12)
This work presents a study of properties of functionalized carbon nanotubes
and graphene nanoribbons. We studied, by first principles simulations, the structural
and electronic properties of functionalized nanotubes and ...
Estudo dos remanescentes de supernova N49 e N63a
(Universidade Federal de Santa Maria, 2013-07-17)
In this work, we present the results of an observational study regarding the
supernova remnants N49 and N63A. The longslit spectrophotometric data of N49
were obtained with the Cassegrain spectrograph attached to the 1,6 ...
Estudo multibanda do conteúdo estelar de regiões HII do Hemisfério Sul
(Universidade Federal de Santa Maria, 2012-10-29)
We present a multi-wavelength study of the stellar content of 11 optical/infrared Southern
Galactic Hii regions with 10 h < α(J2000) < −17 h and −65° < δ(J2000) < −35°.
Nine optical objects with no published or uncertain ...
Propriedades estruturais e eletrônicas de partículas de 13 e 55 átomos de metais de transição
(Universidade Federal de Santa Maria, 2012-06-01)
In this thesis we performed a theoretical study of the structural, electronic, and magnetic properties of transition metal (TM) particles using two models, with 13 and 55 atoms to describe clusters, nanoparticles (NPs), ...
Trocas de carbono atmosférico sobre dois diferentes sistemas de plantio de milho no sul do Brasil
(Universidade Federal de Santa Maria, 2012-09-06)
Farming systems can act as a source or sink of atmospheric carbon, depending on the
type of culture and soil management system adopted. This thesis presents a comparative
study between the data obtained from two ...
Estimativa dos fluxos de energia superficiais utilizando o modelo de superfície noah modificado para culturas alagadas
(Universidade Federal de Santa Maria, 2011-08-12)
The following study quantifies the seasonal and annual distribution of energy balance
components (sensible heat fluxes, latent, soil, and net radiation) in this flooded
irrigated rice ecosystem in Southern Brazil for ...
Congelamento inverso em um modelo de vidro de spin com Clusters
(Universidade Federal de Santa Maria, 2014-08-29)
This work analyzes a spin glass (SG) model with cluster in two versions: a classic version with Ising spins and in a fermionic version with spin operators. In this model,
the basic entities are correlated clusters that ...
Emprego de modelos Euleriano no estudo da dispersão de contaminantes na camada limite planetária
(Universidade Federal de Santa Maria, 2016-12-16)
The transport models and dispersion of contaminants in the atmosphere are mathematical
tools extremally useful at prediction and evaluation of concentration of pollutants
issued by di erent polluting sources. Theses ...