Position Control
Mostrando 37-48 de 1318 artigos, teses e dissertações.
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37. Inequalities in access to HIV and syphilis tests in prenatal care in Brazil
O estudo teve como objetivos avaliar os determinantes sociais do acesso a testes para HIV e sífilis (VDRL) durante a gravidez no Brasil. As variáveis dependentes foram definidas de acordo com o acesso à assistência pré-natal: consultas de pré-natal e testes para HIV e sífilis. As variáveis independentes no primeiro nível foram escolaridade, idade, r
Cad. Saúde Pública. Publicado em: 30/05/2019
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38. Upper limb weight-bearing effect on the body alignment of individuals with cerebral palsy who have spastic hemiparesis: a randomized clinical trial
Resumo Introdução: Pacientes com Paralisia Cerebral (PC) do tipo hemiparesia espástica, costumam apresentar transferência de peso assimétrica entre os hemicorpos. Objetivo: Avaliar os efeitos de um protocolo de exercícios de suporte de peso em membros superiores (MMSS) na simetria do tronco, transferência de peso para o hemicorpo afetado e possíve
Fisioter. mov.. Publicado em: 30/05/2019
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39. Reconfiguration of multi-stage tensegrity structures using infinitesimal mechanisms
Abstract The use of tensegrity structures in soft robotics has seen an increased interest in recent years thanks to their mechanical properties, but the control of these systems remains an open problem. This paper presents a reconfiguration strategy for actuated multi-stage tensegrity structures. The algorithm works on the principle of using the infinitesima
Lat. Am. j. solids struct.. Publicado em: 21/03/2019
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40. Extremum Seeking-based Adaptive PID Control applied to Neuromuscular Electrical Stimulation
Abstract A multivariable deterministic extremum seeking (ES) is being evaluated to construct an adaptive Proportional-Integral-Derivative (PID) control law for the functional Neuromuscular Electrical Stimulation (NMES) of stroke patients. The developed scheme is applied to control the position of the patient’s arm so that movements of flexion/extension for
An. Acad. Bras. Ciênc.. Publicado em: 14/02/2019
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41. DIFFERENCES IN KNEE SENSORIMOTOR CONTROL BY PHYSICAL ACTIVITY LEVEL AND SEX
RESUMO Objetivo: O objetivo desse estudo foi comparar as diferenças no controle sensório-motor de joelho entre mulheres e homens saudáveis medindo o sensação da posição articular (SPA), Coeficiente de variações da força (Steadiness) e inicio ou ativação muscular (IAM) Métodos: Foi avaliado 24 mulheres saudáveis e 27 homens saudáveis, realiza
Acta ortop. bras.. Publicado em: 2019-02
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42. Stability Characteristics of a Model Trim Adjustment System for Open Loop Active Control of Thermoacoustic Instability
ABSTRACT Thermoacoustic instability in liquid rocket engines can have potentially catastrophic consequences. Active control based on feedback promises improved stability margin over a wider range of operating conditions than passive control. In the present work, the thermoacoustic characteristics of a trim adjustment active control system based on variable v
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
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43. Processing and physical and physiological quality of the native forest seeds of Vernonanthura discolor
ABSTRACT. The objective was to study the processing of Vernonanthura discolor seeds, evaluating their physical and physiological qualities and defining parameters for purity analysis and determine the weight of one thousand seeds. The seeds extracted from the infructescences were processed in a blower, testing combinations of openings of the calibration valv
Acta Sci., Agron.. Publicado em: 17/12/2018
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44. Synthesis of leading chalcones with high antiparasitic, against Hymenolepis nana, and antioxidant activities
The hymenolepiosis by Hymenolepis nana is a major public health problem in developing countries, and the commercial drugs against this parasitosis are not enough effective. The combination of antiparasitic and antioxidant agents has improved the treatment of some parasitoses. Thus, the development of new cestocidal and antioxidant agents to treat the hymenol
Braz. J. Pharm. Sci.. Publicado em: 29/11/2018
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45. Investigation on Solar PV generation and design of switched reluctance motor for Smart Agriculture actuation system
ABSTRACT This paper presents standalone solar photovoltaic (PV) powered fed actuation system employing a switched reluctance motor (SRM) particularly used in remote and rural areas. The converter efficiency is achieved by changing ON and OFF state of solar PV drive. An electronic commutation drives SRM drive with achieved by position hall sensor and encoder.
Braz. arch. biol. technol.. Publicado em: 08/10/2018
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46. Impaired baroreflex sensitivity and increased systolic blood pressure variability in chronic post-ischemic stroke
OBJECTIVES: Acute post-stroke patients present cardiovascular autonomic dysfunction, which manifests as lower heart rate variability and impaired baroreflex sensitivity. However, few studies performed to date have evaluated cardiovascular autonomic function in chronic post-stroke patients. The aim of this study was to evaluate cardiovascular autonomic modul
Clinics. Publicado em: 08/10/2018
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47. Use of Cardboard Disks for Crowning Seedlings in Reforestation
ABSTRACT The present study aimed to evaluate the effect of chemopreventive or water-repellent substances on the durability of cardboard disks used to crown forest tree species. The experiment presented a randomized block design with four repetitions and four sampling times (63, 133, 260 and 365 days) and was installed in Seropedica, RJ, in an area with Uroc
Floresta Ambient.. Publicado em: 26/07/2018
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48. Métodos temporales para determinar deformaciones límite en chapas metálicas
ABSTRACT The forming limit diagram (FLD) –broadly used to characterize sheet-metal formability– is made by means of strain measurement over the surface of stretched samples and the subsequent determination of limit-strain values associated with the onset of necking. Currently, researchers can make strain measurements with digital image-correlation analys
Matéria (Rio J.). Publicado em: 19/07/2018