Mechanical System Controls
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Oscillation mechanics of the respiratory system in never-smoking patients with silicosis: pathophysiological study and evaluation of diagnostic accuracy
OBJECTIVES: Silicosis is a chronic and incurable occupational disease that can progress even after the cessation of exposure. Recent studies suggest that the forced oscillation technique may help to clarify the changes in lung mechanics resulting from silicosis as well as the detection of these changes. We investigated the effects of airway obstruction in s
Clinics. Publicado em: 2013-05
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2. A sigmoidal fit for pressure-volume curves of idiopathic pulmonary fibrosis patients on mechanical ventilation: clinical implications
OBJECTIVE: Respiratory pressure-volume curves fitted to exponential equations have been used to assess disease severity and prognosis in spontaneously breathing patients with idiopathic pulmonary fibrosis. Sigmoidal equations have been used to fit pressure-volume curves for mechanically ventilated patients but not for idiopathic pulmonary fibrosis patients.
Clinics. Publicado em: 2011
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3. Mechanical ventilation and lung infection in the genesis of air-space enlargement
Introduction Air-space enlargement may result from mechanical ventilation and/or lung infection. The aim of this study was to assess how mechanical ventilation and lung infection influence the genesis of bronchiolar and alveolar distention. Methods Four groups of piglets were studied: non-ventilatednon- inoculated (controls, n = 5), non-ventilated-inoculated
Publicado em: 2010
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4. Desenvolvimento de Uma Órtese Ativa Para os Membros Inferiores Com Sistema Eletrônico Embarcado
This work presents the development of a prototype of an intelligent active orthosis for lower limbs whit an electronic embedded system. The proposed orthosis is an orthopedical device with the main objective of providing walking capacity to people with partial or total loss of lower limbs movements. In order to design the kinematics, dynamics and the mechani
Publicado em: 2010
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5. Static evaluation of the anklefoot complex and dynamic patterns of the plantar pressure distribution in runners with and without plantar fasciitis / Avaliação estática do complexo tornozelo-pé e padrões dinâmicos da distribuição da pressão plantar de corredores com e sem fasciite plantar
The plantar fasciitis has been the third most common disease in runners. Despite this high prevalence, its pathogenesis is still inconclusive. In literature, the rearfoot misalignment, changes in the conformation of longitudinal plantar arch and increased mechanical load on the feet, have been described as risk factors for developing of plantar fasciitis. Ho
Publicado em: 2010
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6. Análise em tempo real da impedância do sistema respiratório e da mobilidade toracoabdominal em portadores de DPOC com obstrução brônquica acentuada / Real-time analysis of respiratory system impedance and thoracoabdominal mobility of COPD patients with severe bronchial obstruction
Introduction: COPD is carachterized by airflow limitation associated abnormal inflammatory response of the lung to noxious particles or gases. The mechanical alterations associated with COPD have been related with dysfunction of the diaphragm, observed since the initial phases of the disease. Several studies have confirmed the high potential of FOT in the as
Publicado em: 2009
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7. Controle social efetivo de políticas públicas / Controle social efetivo de políticas públicas
The production of texts is wide and the discussions are focused on tax collection but the interest demonstrated by our scholars on the way whereby the very high tax burden charged from taxpayers is used is extremely poor. The issue becomes unintelligible in view of the extreme poverty in which one fifth of the Brazilian population lives and of the fact that
Publicado em: 2009
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8. COMPARAÇÃO ENTRE CONTROLES LOOK-AND-MOVE E SERVO-VISUAL UTILIZANDO TRANSFORMADAS SIFT EM MANIPULADORES DO TIPO EYE-IN-HAND / COMPARISON BETWEEN LOOK-AND-MOVE AND VISUAL SERVO CONTROL USING SIFT TRANSFORMS IN EYE-IN-HAND MANIPULATOR SYSTEMS
Computer vision can be used to calibrate and self-localize robots. There are many applications in self-localization and control applied to industrial manipulators and mobile robots. In particular, visual control can be useful in submarine interventions, where a robotic manipulator is mounted on a Remote Operated Vehicle (ROV) to execute tasks at high depths,
Publicado em: 2009
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9. Os efeitos de um programa de exercícios respiratórios para idosos asmáticos / The effects of a respiratory exercise program tailored for elderly people with asthma
INTRODUCTION: People can develop asthma at any given age, and asthma prevalence in older adults is no different than that observed in younger people. Asthma in older adults is frequently underdiagnosed, and this is reflected in the fact that approximately 60% of people who die from asthma have surpassed the age of 65. Equally important is the fact that reduc
Publicado em: 2009
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10. Análise da atividade linfoproliferativa de células esplênicas murinas frente a extrato de seis plantas medicinais da flora catarinense / Analysis of the citotoxic and lymphoproliferative activity of methanolic exctracts of medicinal plants on murine spleen cells
Some compounds have been used as immunomodulatory agents, enabling the function of the immune system to be modified, stimulating or suppressing it. There has been increasing interest in the study of therapeutic activities of plant extracts in recent years, including their immunomodulatory activity. The aim of the present work is to identify and evaluate the
Publicado em: 2007
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11. Physical training of the soleus muscle and mechanical properties of the rat tibia / Influência do treinamento físico na resposta trófica do músculo sóleo e na resistência mecânica das tíbias de ratos
Facing the physical training, the agency is subject of alterations anatomophysiological in several systems, specially the muscle and bone system. It is intended, to describe alterations of muscle trophy of the soleus and of the mechanical properties of the rat tibia submitted to physical training in rolling mat (PTRM), as well as like analyze these relations
Publicado em: 2006
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12. SISTEMA PARA APROVEITAMENTO DE ENERGIA VIBRACIONAL BASEADOS EM TRANSDUTORES ACÚSTICOS PIEZELÉTRICOS DE BAIXO CUSTO / MICROGENERATION BASED ON A LOW-COST PIEZOELECTRIC ACOUSTIC TRANSDUCER
This dissertation presents the development of a system for converting the mechanical energy from vibrations into electrical energy. The conversion is performed in a low-cost piezoelectric transducer, commonly known as buzzer. The main purpose of this system is to charge, or to extend the time between charges, of chargeable batteries up to 2V. In order to con
Publicado em: 2006