Tilting
Mostrando 13-24 de 97 artigos, teses e dissertações.
-
13. Modelling hermetic compressors using different constraint equations to accommodate multibody dynamics and hydrodynamic lubrication
In this work, the steps involved for the modelling of a reciprocating linear compressor are described in detail. The dynamics of the mechanical components are described with the help of multibody dynamics (rigid components) and finite elements method (flexible components). Some of the mechanical elements are supported by fluid film bearings, where the hydrod
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-03
-
14. Confidence intervals for high quantiles from heavy-tailed distributions. / Intervalos de confiança para altos quantis oriundos de distribuições de caudas pesadas
In this work, confidence intervals for high quantiles from heavy-tailed distributions were computed. More specifically, four methods, namely, normal approximation method, likelihood ratio method, data tilting method and generalised gamma method are used. A simulation study with data generated from Weibull distribution has shown that the generalised gamma met
Publicado em: 2009
-
15. Geomorphological and physiographical characterization of João Pessoa Chart - 1: 100.000 / Caracterização geomorfológica e do meio físico da folha João Pessoa - 1:100.000
This work encompasses an extensive physiographical characterization of the João Pessoa Chart 1: 100.000, wherein the landforms, although linked to other natural components, represent the main focus of the thesis. From the geomorphological perspective, the study area lies on the coastal tablelands (Tabuleiros) and coastal lowlands of Northeastern Brazil, bei
Publicado em: 2007
-
16. Tectônica rúptil meso-cenozóica na região do Domo de Lages, SC / Meso-cenozoic brittle tectonics of the Lages Dome, SC
This study was focused on the meso-cenozoic tectonic evolution of the Domo de Lages region (south Santa Catarina State, Southern Brazil), through the analysis of brittle structures affecting sedimentary and igneous rocks, morphometric parameters, drainage network and main geomorphological features. Located in the border of the Paraná sedimentary basin, the
Publicado em: 2007
-
17. Determinação da temperatura da mesosfera superior utilizando um espectro-imageador / Determination of the temperature at upper mesosphere using a imager spectrometer
The Airglow Laboratory (LUME) of the Aeronomy Division (DAE) of the National Institute of Space Research (INPE) has developed a new imaging spectrometer, wich will be used to monitor the temperature in the upper mesosphere. The goal of this master thesis is to develop an analysis for this new instrument and to proceed the temperature andOH(6-2)intensityvalid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/09/2005
-
18. Elementos de suporte do comando de valvulas avaliado por modelo de diferenças finitas
The Valve Train System used in combustion engines have the ability to command the opening and closure of gas circulation valves control that takes part in combustion. It is formed by many sub-systems. One of these systems is the finger follower/pivot contact, where the command starts the finger follower for valve starts and uses the pivot as a support elemen
Publicado em: 2004
-
19. Pulmonary function, cholinergic bronchomotor tone, and cardiac autonomic abnormalities in type 2 diabetic patients
This prospective study analyzed the involvement of the autonomic nervous system in pulmonary and cardiac function by evaluating cardiovascular reflex and its correlation with pulmonary function abnormalities of type 2 diabetic patients. Diabetic patients (N = 17) and healthy subjects (N = 17) were evaluated by 1) pulmonary function tests including spirometry
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-03
-
20. Does a Role Exist for Tilting-Guided Therapy in the Management of Neurocardiogenic Syncope?
PURPOSE: Upright tilt-table testing (UTT) is an useful method for identifying patients with neurocardiogenic syncope, but its role in the evaluation of therapeutic efficacy is controversial. The aim of this study was to determine the correlation between negative UTT after therapy introduction (acute efficacy) and symptom recurrence during follow-up (chronic
Arquivos Brasileiros de Cardiologia. Publicado em: 2002-02
-
21. Contribuição ao estudo da instabilidade lateral de vigas pré-moldadas / On the lateral stability of precast concrete beams
The lateral stability of long and slender precast concrete beams requires great attention. In particular, it is important to ensure the stability of these members during transitory phases like tilting and transport, and also when the deformability of temporary supports is taken into account. The state of the art of the problem of lateral stability in precast
Publicado em: 2002
-
22. Airglow observations of the hydroxil s rotacional temperature at the terrestrial mesospheric region / Observação da temperatura rotacional da hidroxila através da aeroluminescência na região da mesosfera terrestre
The Atmospheric Airglow Laboratory (LUME)of National Institute for Space Research (INPE)developed a portable photometer with a tilting filter to measure the OH(8,3)band airglow. A computer program was developed to control the photometer operation and to accomplish the acquisition and reduction of the data. Photometer sensitivity and spectral calibrations wer
Publicado em: 2000
-
23. Identificação das propriedades dinamicas de mancais segmentados hibridos : teoria e experimento
The stability of rotating machines is strongly related to the type of coupling between the rotating and stationary parts. The bearings are one of the most important stationary part for defining the operational stability range of such a kind of machines. The goal of this research work is to study a new type of hydrid lubrication, where the oil is electro nica
Publicado em: 1999
-
24. Respostas da frequencia cardiaca e da pressão arterial sistemica as manobras postural passiva e de valsalva, em individuos sedentarios e atletas corredores de longa distancia / Heart rate and blood pressure responses to head-up tilting and valsalva maneuver in long distance runners and sedentary subjects
This research aimed to study the heart rate (HR) and blood pressure (BP) responses to head-up tilting (HUT) and Valsalva maneuver (VM), analyzing the autonomic nervous system control of these variables, in long distance runners and sedentary subjects. The study inc1udeda group of sedentary subjects (S) who did not practice any regular physical activity for a
Publicado em: 1997