Induction Motor
Mostrando 1-12 de 189 artigos, teses e dissertações.
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1. Experimental Loss Segregation in a Solid Rotor Induction Motor
Abstract Solid rotor induction motors (SRIMs) are asynchronous motors suited for high speed applications. This work presents an experimental case study where standard loss segregation procedures for induction motors are performed with a two-phase smooth solid rotor induction motor in order to verify their applicability. Even though the machine is supposed to
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. The impact of IPACK combined with adductor canal block under ultrasound guidance on early motor function after total knee arthroplasty
Abstract Background: This study aimed to evaluate the impact of Infiltration between the Popliteal Artery and Capsule of the posterior Knee (IPACK) combined with an adductor canal block under the guidance of ultrasound on early motor function after Total Knee Arthroplasty (TKA). Methods: A sample of 60 cases who were scheduled for elective unilateral TKA w
Brazilian Journal of Anesthesiology. Publicado em: 2022
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3. Effects of physical exercise on skeletal muscles of rats with cerebral ischemia
Physical exercise is a known preventive and therapeutic alternative for several cerebrovascular diseases. Therefore, the objective of the present study was to evaluate the motor performance and histomorphometry of the biceps brachii, soleus, and tibialis anterior muscles of rats submitted to a treadmill training program prior to the induction of cerebral isc
Braz J Med Biol Res. Publicado em: 28/11/2019
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4. Use of a combined SVD-Kalman filter approach for induction motor broken rotor bars identification
Abstract This paper describes a new parametric spectral estimator for the identification of rotor bar fault of an induction motor by analyzing the stator current. This approach combines two methods: The first one, the Singular Value Decomposition method which allows the accurate detection and location of the fault's signature frequency. The second method all
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2018-03
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5. Effects of aquaporin 4 and inward rectifier potassium channel 4.1 on medullospinal edema after methylprednisolone treatment to suppress acute spinal cord injury in rats
Abstract Purpose: To investigate the effects of aquaporin 4 (AQP4) and inward rectifier potassium channel 4.1 (Kir4.1) on medullospinal edema after treatment with methylprednisolone (MP) to suppress acute spinal cord injury (ASCI) in rats. Methods: Sprague Dawley rats were randomly divided into control, sham, ASCI, and MP-treated ASCI groups. After the in
Acta Cir. Bras.. Publicado em: 2018-02
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6. Effect of strontium ranelate on pain behavior in an experimental model of osteoarthritis
Strontium ranelate (SrRan) is a drug usually prescribed to treat osteoporosis, with proven effects of decreasing the risk of fractures and an indication of reducing the progression of osteoarthritis (OA). This study aimed to investigate the effects of SrRan as either a prophylactic or a treatment drug, using an OA rat model to assess pain behavior. A monoiod
Braz J Med Biol Res. Publicado em: 07/08/2017
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7. Estimation of Three-Phase Induction Motor Equivalent Circuit Parameters from Manufacturer Catalog Data
Abstract The single phase equivalent circuit is largely used to model the three-phase induction motors in steady-state operation and under sinusoidal balanced voltages. Depending on the desired application, the circuit may or may not represent core losses, a double cage or even the variation of parameters due to skin effect and saturation. However, the deter
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-03
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8. Neuroprotective effect of atorvastatin in spinal cord ischemia-reperfusion injury
OBJECTIVES: Prevention of the development of paraplegia during the repair of the damage caused by descending thoracic and thoracoabdominal aneurysms remains an important issue. Therefore, we investigated the protective effect of atorvastatin on ischemia-induced spinal cord injury in a rabbit model. METHOD: Thirty-two rabbits were divided into the following
Clinics. Publicado em: 2015-01
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9. Neuroprotective effect of epidural hypothermia after spinal cord lesion in rats
OBJECTIVES : To evaluate the neuroprotective effect of epidural hypothermia in rats subjected to experimental spinal cord lesion. METHODS: Wistar rats (n = 30) weighing 320-360 g were randomized to two groups (hypothermia and control) of 15 rats per group. A spinal cord lesion was induced by the standardized drop of a 10-g weight from a height of 2.5
Clinics. Publicado em: 2014-08
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10. Mathematic model of three-phase induction machine connected to advanced inverter for traction system for electric trolley
Este documento estabelece um modelo matemático de máquina de indução conectado a um inversor de frequência necessário para ajustar o motor de acionamento elétrico. O modelo matemático baseado na Teoria de Park permite a análise de todo o espectro (carro elétrico com inversor de frequência) para dirigir o ônibus elétrico feito em ASTRA Bus Arad (
An. Acad. Bras. Ciênc.. Publicado em: 10/05/2013
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11. Blockade of CXCR1/2 chemokine receptors protects against brain damage in ischemic stroke in mice
OBJECTIVE: Ischemic stroke may result from transient or permanent reductions of regional cerebral blood flow. Polymorphonuclear neutrophils have been described as the earliest inflammatory cells to arrive in ischemic tissue. CXCR1/2 receptors are involved in the recruitment of these cells. However, the contribution of these chemokine receptors during transie
Clinics. Publicado em: 2013
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12. Avaliação de desempenho da estratégia de representação laboratorial de turbinas eólicas utilizando motores de indução controlados
Atualmente, verifica-se um crescente aumento da demanda energética em todo o mundo. Com isso, é grande a busca por um modelo mais sustentável que seja capaz de suprir toda essa necessidade. Nesse contexto, surgem as fontes de energia renovável, que se apresentam com baixo impacto ambiental quando comparadas às demais opções. Entre as fontes renovávei
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2012