Function Of Complex Variable
Mostrando 13-24 de 89 artigos, teses e dissertações.
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13. Nonlinear control system design using variable complexity modelling and multiobjective optimization
To design controllers for complex non-linear systems usually involves the use of expensive computational models. A non-linear thermodynamic model of a gas turbine engine is used to evaluate a selection of designs for a multivariable PI controller configuration. An approach using variable complexity modelling (VCM) is introduced to allow more designs to be ev
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2006-03
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14. O mercado financeiro e o imposto sobre a renda
Throughout the centuries, money has continued to play a vital role in the economy of countries and the development of their peoples. Thanks to its generic nature, money is the physical means whereby the classic functions of currency are met. Among these, is the value reserve, enabling gains and savings. A consequence of this function is the demand for, and o
Publicado em: 2006
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15. Do teorema de Cauchy ao metodo de Cagniard
This work is about complex variables, in particular about Cauchy s integral theorem and its consequences and applications. We have, as consequences of Cauchy s integral theorem, Cauchy s theorem and the residue theorem, a keynote to the development of this work. As for the applications, our main objective was to study the integral transforms as a method to s
Publicado em: 2005
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16. FINITE ELEMENT SIMULATION OF THE COOLING PHASE OF ROTATIONAL MOLDING PROCESS / SIMULAÇÃO VIA ELEMENTOS FINITOS DA ETAPA DE RESFRIAMENTO DA MOLDAGEM ROTACIONAL
The purpose of the present work was to simulate the cooling phase of the rotational molding in order to evaluate the influence of some variables in the cooling time, that is the longest one in the process. ANSYSTM software was used to perform the simulation using the finite element method, thus it will be possible to work with complex geometries in future wo
Publicado em: 2004
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17. Estudo das interações entre biopolimeros e polpas de frutas tropicais em cisalhamento estacionario e oscilatorio
The rheological behavior of guar and xanthan gums in passion tfuit pulp was evaluated by means of shear flow and oscillatory shear tests. Herschel-Bulckley model represented successfully biopolymers flow behavior and Cross model was used to describe those behaviors in a broad shear stress range. In pulp tfuit systems, xanthan gum showed more pseudoplasticity
Publicado em: 2002
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18. Modelagem bidimensional da injeção de agua em reservatorios heterogeneos
This work studies the application of strearntube theory joined with a two-porosity linear model in heterogeneous reservoirs under injection of a incompressible wetting fluid and the production of a non-wetting fluid. It was considered that the streamlines are fixed and there is no flow between each channel. Gravity was neglected and the imbibition phenomena
Publicado em: 1996
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19. The topological relationship between the large-scale attributes and local interaction patterns of complex networks
Recent evidence indicates that the abundance of recurring elementary interaction patterns in complex networks, often called subgraphs or motifs, carry significant information about their function and overall organization. Yet, the underlying reasons for the variable quantity of different subgraph types, their propensity to form clusters, and their relationsh
National Academy of Sciences.
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20. Structure-function relationship among T-cell receptors specific for lysozyme peptides bound to Ab or Abm-12 molecules.
The alpha beta T-cell receptor (TCR) recognizes antigenic peptides bound to major histocompatibility complex (MHC) molecules. In contrast to the antibody combining site, for which the antigen contact or complementarity-determining residues (CDRs) have been precisely defined, the location and function of the corresponding CDR regions of the alpha and beta TCR
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21. Poly(A) site efficiency reflects the stability of complex formation involving the downstream element.
A critical step in mRNA biogenesis is the generation of the mRNA 3' end through an endonucleolytic cleavage of the primary transcript followed by the addition of a approximately 200 nucleotide (nt) poly(A) tail. The efficiency of poly(A) site function can vary widely and for those genes with multiple poly(A) sites, the choice can be a regulated event. A func
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22. Olfactory Behavioral Testing in the Adult Mouse
The rodent olfactory system is of increasing interest to scientists, studied, in part, in systems biology because of its stereotyped, yet accessible circuitry. In addition, this area's unique ability to generate new neurons throughout an organism's lifetime makes it an attractive system for developmental and regenerative biologists alike. Such interest nec
MyJove Corporation.
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23. Linkage mapping of a mouse gene, iv, that controls left-right asymmetry of the heart and viscera.
Inherited single gene defects have been identified in both humans and mice that lead to loss of developmental control over the left-right asymmetry of the heart and viscera. In mice the recessively inherited mutation iv leads to such apparent loss of control over situs: 50% of iv/iv mice exhibit situs inversus and 50% exhibit normal situs. The affected gene
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24. The CD3-gamma and CD3-delta subunits of the T cell antigen receptor can be expressed within distinct functional TCR/CD3 complexes.
The T cell receptor for antigen (TCR) consists of two glycoproteins containing variable regions (TCR-alpha/beta or TCR-gamma/delta) which are expressed on the cell surface in association with at least four invariant proteins (CD3-gamma, -delta, -epsilon and -zeta). CD3-gamma and CD3-delta chains are highly homologous, especially in the cytoplasmic domain. Th