Velocity Filtering
Mostrando 1-12 de 13 artigos, teses e dissertações.
-
1. INTEGRATION OF A LOW-COST GLOBAL NAVIGATION SATELLITE SYSTEM TO A SINGLE-BOARD COMPUTER USING KALMAN FILTERING
ABSTRACT The global navigation satellite system (GNSS) is the basis for localized crop management by allowing the georeferencing of collected data and the generation of maps by different systems that compose precision agriculture. There is a demand for low-cost navigation systems to enable their use in agriculture. Therefore, the objective of this study is t
Eng. Agríc.. Publicado em: 19/06/2019
-
2. Estudo da influência da velocidade e dos ciclos de filtração na formação da torta na limpeza de gases em filtros de mangas
A permeabilidade e a porosidade são parâmetros de grande importância para o projeto de filtro de mangas. Esses parâmetros interferem tanto na queda de pressão do sistema, durante a operação de filtração, quanto na força necessária para a remoção da torta. A regeneração do tecido após cada filtração altera consideravelmente as propriedades d
Publicado em: 2010
-
3. Adaptive complementary filtering algorithm for mobile robot localization
As a mobile robot navigates through an indoor environment, the condition of the floor is of low (or no) relevance to its decisions. In an outdoor environment, however, terrain characteristics play a major role on the robot's motion. Without an adequate assessment of terrain conditions and irregularities, the robot will be prone to major failures, since the e
Journal of the Brazilian Computer Society. Publicado em: 2009-09
-
4. A study of the porosity of gas filtration cakes
The purpose of this work was to determine the porosity of gas filtration cakes composed of powdery organic and inorganic materials, employing a technique whereby an optical microscope generates images of the powdery layer deposited on the surface of the filtering medium. To this end, experimental cake filtration porosity data were obtained as a function of t
Brazilian Journal of Chemical Engineering. Publicado em: 2009-06
-
5. Modelo I2P : recomendação de recursos baseando-se em preferências, interesses e popularidade
The development of technologies that assist in the teach-learning process is an rgued subject in some areas of knowledge. The great diffusion of Web-based Educational Systems (WbE-S) has been shown the popularization of distance learning and its support tools. The Tidia-Ae project, support by FAPESP, aim at the development of a WbE-S that can use the concept
Publicado em: 2008
-
6. Comportamento da filtração de gases em meios filtrantes de celulose.
The present work aims to evaluate, through filtration process and cake detachment, the behavior of two cellulose fiber filtering media with different air permeability values. The powder material used was phosphatic concentrated rock of density 2,99 g/cm3 and its average volumetric diameter of 8,34 m. The equipment used was constituted of a circular filter, p
Publicado em: 2006
-
7. Analise teorica e experimental de estrategias de controle ativo de ruido
This work describes applications of the active noise control techniques using adaptive feed forward filtering theory, where the objective is to analyze energetic behavior of the controlled system. The active noise control methods employed are the normalized filtered-X LMS in the time and frequency domain and the Active Sound Intensity Controller (ASIC), whic
Publicado em: 2002
-
8. Preparação, caracterização e aplicação de membranas polimericas microporosas assimetricas
This work starts with the preparation of asymmetric microporous polymeric membranes through phase inversion technique by immersion-coagulation in the presence of a non-solvent. The poly (vinylidene fluoride)-PVDF was used pure or blended with lithium chloride and one of the following polymeric additives: poly (vinyl acetate)-PVAc or poly (ethylene glycol)-PE
Publicado em: 2002
-
9. Desenvolvimento de um navegador autônomo, usando GPS, aplicado ao controle autônomo de órbita. / Autonomous orbit navigator development, using GPS, applied to autonomous orbit control.
The appearance of modern global positioning systems motivated the study and development of precise and robust systems for autonomous orbit determination of artificial satellites. These systems maintain, independently from human intervention from the ground, a precise knowledge of the satellite orbital state, through the processing of the information, autonom
Publicado em: 2001
-
10. SUPRESSION GROUND ROLL BY EMPLOYING WAVALET / SUPRESSÃO DE RUÍDO DE ROLAMENTO SUPERFICIAL UTILIZANDO WAVELETS
Surface waves are a common source of unwanted noise in the seismic record. Ground roll can be defined as a group of events that contaminates seismic data and makes a high dip (low velocity) and high amplitude cone, this can dominate near-source on seismic records. Surface waves are such a problem in land seismic record acquisition that the design of acquisit
Publicado em: 1999
-
11. Some theoretical and experimental aspects od the surface layer above the "Pantanal Matogrossense" / Alguns aspectos teoricos e experimentais da camada limite superficial acima do Pantanal Matogrossense
In this study it was used data from the micrometeorological tower located at Miranda city ( 19 degree 6 S 5 degree 0 W), in the Pantanal Matogrossense, in order to characterize aspects of the structure of turbulence in the atmospheric boundary layer, in the transition period between wet and dry seasons. The Wavelet Transform was used in the analysis of the t
Publicado em: 1999
-
12. Treatment response assessment of breast masses on dynamic contrast-enhanced magnetic resonance scans using fuzzy c-means clustering and level set segmentation
The goal of this study was to develop an automated method to segment breast masses on dynamic contrast-enhanced (DCE) magnetic resonance (MR) scans and to evaluate its potential for estimating tumor volume on pre- and postchemotherapy images and tumor change in response to treatment. A radiologist experienced in interpreting breast MR scans defined a cuboid
American Association of Physicists in Medicine.