Information Flux
Mostrando 25-36 de 72 artigos, teses e dissertações.
-
25. Corpo e cidade: comunicação e contaminação
The research investigates the connection between the body and the city as a systemic structural coupling through which the flux of informatio n is organized as communicative process. In order to do so, we analyze the concept of environment according to a few bio -semiotic theories (Uexküll, 2004), the concept of embodiment assessed by the bodymedia theory (
Publicado em: 2006
-
26. Levantamento de bacteriofagos liticos : isolamento e caracterização de virus provenientes de esgoto comum com potencial aplicação antimicrobiana / Survey of lytic bacteriophages: isolation and characterizatio of virus proceeding from raw sewage with potential antimicrobial application
Bacteriophages, viruses that infect prokaryotic hosts, are the most numerous biological entities of the world. Their abundance implied in reviews in several areas of knowledge, like genetics, evolution and ecology, and phages are now recognized as important vectors in the flux of matter, energy and information in natural environments. However, there is a hug
Publicado em: 2006
-
27. Sistema especialista de apoio à elaboração de arranjo físico para sistema intensivo de produção de leite em confinamento tipo baias livres / Expert system to the elaboration of physical facilities for intensive milk production system in free stall type confinement
The search for technological alternatives that could optimize the productive processes, increase the quality, make flexible and reduce the production costs of the milk has promoted the directing of the agricultural researches toward the computer science field, which is another way to generating efficient scientific answers therefore partly reducing the subje
Publicado em: 2006
-
28. Detecção e diagnóstico de falhas em motores de indução
This main purpose of this work is to design and implement a system to detect and diagnose electrical faults (stator inter-turn short circuit and broken rotor bars) and mechanical faults (unbalance and shaft misalignments) for three phase induction machines. This approach starts by obtaining the best patterns for fault detection and symmetrical models for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2005
-
29. Transient convective heat transfer
In nature, as well as within the human-made thermal systems, the time-variable regimes are more commonly encountered, if not always, than the permanent regimes. Nevertheless, studies in convection are still more frequent in the permanent regimes, undoubtedly due to the related difficulties in calculation in terms of time and cost of computation. One may dist
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-03
-
30. Infrared counterparts of x-ray sources in the galactic center region / Identificação de contrapartidas infravermelhas de fontes de raios-x na região do centro galáctico
The Chandra X-ray telescope has carried out a survey in the Galactic Center region resulting in a catalog of 2357 point sources in a 17 × 17 field-of-view. The positional uncertainty of the sources is <= 4 arcsec. This allowed us to identify counterparts in other wavelengths. In the optical region, due to the large extinction by the interstellar medium (
Publicado em: 2005
-
31. Efeito da geometria na ebulição nucleada de refrigerantes halogenados em tubos horizontais / Geometry effects in nucleate boiling of halocarbon refrigerants in horizontal tubes
The research reported herein is a theoretical and experimental investigation of nucleate boiling heat transfer in an isolated tube and a row of three horizontal tubes. The literature review provided enough information to raise the intervening physical parameters and several correlations. The experimental bench has been developed and adapted to perform experi
Publicado em: 2005
-
32. STUDY OF FLOW AND HEAT TRANSFER CHARACTERISTICS IN A SWIRLING IMPINGING JET / ESTUDO DO ESCOAMENTO E TRANSFERÊNCIA DE CALOR EM UM JATO ESPIRALADO INCIDENTE
The present work is an experimental study of the characteristics of a swirling impinging air jet. The goals of the study are: to evaluate the influence of the presence of a circumferential velocity component in the distribution of the local heat transfer coefficients, to obtain instantaneous velocity fields in the axisymmetric plane, as well as information a
Publicado em: 2005
-
33. Study of neutron-DNA interaction at the IPEN BNCT research facility
Our group at the Laboratorio do Acelerador Linear (IFUSP- USP) is currently developing several studies related to the interaction of different kinds of radiation with DNA. Initially, our plan is to study the interactions proton-DNA, gamma-DNA and neutron-DNA. In this work we describe the most important features of the neutron-DNA study, which we plan to perf
Brazilian Journal of Physics. Publicado em: 2004-09
-
34. ESTUDOS PIEZOMÉTRICOS E ANÁLISE DE ESTABILIDADE DE TALUDES DA BARRAGEM BICO DA PEDRA
In this work, an attempt was made to establish a simple field procedure to be used on the Bico de Pedra dam stability and safe operation. This dam is located at Janaúba city, state of Minas Gerais, Brazil. This procedure was called Risk Table. For the Risk Table elaboration a sequence of studies and numerical simulations were developed, based on laboratory
Publicado em: 2004
-
35. Communications de Groupes : Analyse et Performances des Mécanismes de Agrégation de lnformation de Contrôle
Qu elles soient déjà existantes ou pressenties, les applications multiparties fondées sur un service de multidiffusion requièrent pour certaines le retour d information des participants qu elles mettent en rapport. Selon ces applications, les informations générées peuvent être utilisées par une source émettrice pour réaliser du contrôle de flux o
Publicado em: 2004
-
36. A dinamica biogeoquimica do mercurio na bacia do Rio Negro (AM) e fluxos na interface agua/atmosfera
The biogeochemistry of mercury, including the evaluation of Dissolved Gaseous Mercury (DGM) fluxes at the interface water/air in the Rio Negro basin was carried out assuming four different approaches: (a) measurements of total mercury in the atmosphere and in the total precipitation, as well as total, reactive and dissolved gaseous mercury in the surface wat
Publicado em: 2004