Automatic Control
Mostrando 25-36 de 257 artigos, teses e dissertações.
-
25. A model for selecting alternate foot placement during human locomotion
The selection of alternate foot placement is based on visual inputs and the prediction of future foot placement combined with a set of internal rules that are guided by three determinants: minimum foot displacement, stability, and maintenance of forward progression. These three determinants are weighted differently, depending on different constraints. The fi
Psychol. Neurosci.. Publicado em: 2014-12
-
26. A forced running wheel system with a microcontroller that provides high-intensity exercise training in an animal ischemic stroke model
We developed a forced non-electric-shock running wheel (FNESRW) system that provides rats with high-intensity exercise training using automatic exercise training patterns that are controlled by a microcontroller. The proposed system successfully makes a breakthrough in the traditional motorized running wheel to allow rats to perform high-intensity training a
Braz J Med Biol Res. Publicado em: 15/08/2014
-
27. A supervision and control tool based on artificial intelligence for high cell density cultivations
High cell density cultivations of recombinant E. coli have been increasingly used for the production of heterologous proteins. However, it is a challenge to maintain these cultivations within the desired conditions, given that some variables such as dissolved oxygen concentration (DOC) and feed flow rate are difficult to control. This paper describes the sof
Braz. J. Chem. Eng.. Publicado em: 2014-06
-
28. Avaliação do complexo médio-intimal nas artérias carótidas, femorais e subclávia direita para investigação precoce de aterosclerose em pacientes infectados pelo HIV
Objective To compare automatic and manual measurements of intima-media complex (IMC) in common carotid, common femoral and right subclavian arteries of HIV-infected patients in relation to a control group, taking into consideration the classical risk factors for atherosclerosis. Materials and Methods The study sample comprised 70 HIV-infected patients and 7
Radiol Bras. Publicado em: 2013-12
-
29. Hybrid distributed Raman/EDFA amplifier with hybrid automatic gain control for reconfigurable WDM optical networks
Nowadays, optical amplifiers designs are induced by new requirements generated by optical networks. The introduction of WDM reconfigurable networks with increasing rate from 10-40 Gb/s to 100 Gb/s and beyond, demand new optical amplifiers development with improved gain spectral flatness and noise figure for all operational range of input powers and set-point
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-12
-
30. Voluntary and automatic orienting of attention during childhood development
Selective attention directs cognitive resources to relevant objects or events through either voluntary (top-down) or automatic (bottom-up) control. This paper analyzes voluntary and automatic orienting of attention during childhood development. Seventy-four children (6 to 10 years old) were asked to press a key in response to a visual target presented in a p
Psychol. Neurosci.. Publicado em: 2013-06
-
31. Aplicação de redes inteligentes nas instalações elétricas residenciais / Application of smart grid in residential electrical installations.
Electricity as an energy resource acquired vital importance in modern society because it allows relatively easily meet the demand for their services. Thus the demand for electricity increases with the evolution of populations who benefit from. The electrical system that produces this input is limited in its ability to available resources for generation, tran
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2012
-
32. Proposta de uma plataforma de testes para o desenvolvimento de veículos autônomos / Test platform proposal for the development of autonomous vehicles
As electronic and computational systems technology advances, the use of path control methods in navigation systems become very important for different autonomous vehicles applications such as generating maps, avoiding obstacles and carrying out positioning tasks. In addition, controls can help increase the reliability, versatility and precision level of prog
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
-
33. Análise dos genes GHRH e GL12 em pacientes com deficiência de hormônio do crescimento congênita / GHRH and GLI2 genes analysis in patients with congenital growth hormone deficiency
Introduction: Alterations in genes related to GH secretion and pituitary organogenesis have been identified in patients with congenital GH deficiency (GHD). However, in only few cases of GHD the etiology has been established. GH-releasing hormone (GHRH) is an obvious candidate to explain isolated GH deficiency (IGHD). Previous reports in the literature did n
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2012
-
34. Secagem de uvas Niágara visando obter subsídios para o processamento, supervisão e controle / Drying of Niagara grapes in order to obtain the processing subsidies, supervision and control
Tradicionalmente utilizada em alguns países vinícolas e com pouca ou nenhuma aplicação no Brasil, a secagem de uvas destinadas a vinificação representa uma importante metodologia para obtenção de vinhos de mesa com elevado nível de qualidade, no entanto até o presente momento diversos problemas oriundos da falta de controle das condições ambienta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/02/2012
-
35. Vibration attenuation and shape control of surface mounted, embedded smart beam
Active Vibration Control (AVC) using smart structure is used to reduce the vibration of a system by automatic modification of the system structural response. AVC is widely used, because of its wide and broad frequency response range, low additional mass, high adaptability and good efficiency. A lot of research has been done on Finite Element (FE) models for
Lat. Am. j. solids struct.. Publicado em: 2012-06
-
36. Performance and egg quality of Japanese quails submitted to cyclic heat stress
Aiming at evaluating the influence of cyclic temperatures on the performance and egg quality of Japanese quails an experiment was carried out with 480 birds after egg production peak. Birds were housed in a bioclimatic chamber with automatic temperature control that contained two rooms, one maintained at thermoneutral temperature (21 ºC) and the other adjus
Revista Brasileira de Ciência Avícola. Publicado em: 2012-03