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Дисертації з теми "Direct current motors"

Автор: Grafiati

Опубліковано: 6 лютого 2024

Оновлено: 25 липня 2025

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1

Britten, Mark David. "Torque Controlled Drive for Permanent Magnet Direct Current Brushless Motors." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/5252.

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This thesis describes the design and implementation of a simple variable speed drive (VSD) based on a brushless direct current (BLDC) machine and discrete logic circuits. A practical VSD was built, capable of operating a BLDC machine in two quadrants, motoring and regenerative braking. The intended applications are electric scooters and electric bicycles, where the recovered energy from braking extends the range of the vehicle. A conceptual four quadrant VSD, suitable for three and four wheelers requiring reverse operation, was designed and tested in simulation. Simplicity was emphasized in th

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2

Miller, Joel Christopher. "Modulating dynamic stiffness of a direct-drive brushless linear DC motor." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/16103.

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3

Hamann, Franz, and Gustavo Mesones. "Development of a hybrid system for automatic identification of brushed direct current motors." Institute of Electrical and Electronics Engineers Inc, 2020. http://hdl.handle.net/10757/656635.

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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.<br>This work proposes a low-cost hybrid hardware and software system that, through a set of methods and nested while loop fitting algorithms, allows to automatically identify the electrical and mechanical parameters of a brushed direct current motor. The aim is to facilitate a tool that contributes to the development of motion control projects in which this type of actuator is used, automating and speeding up the identification process of the moto

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4

Ghosh, Ramit. "Sensorless starting of a brushless D.C. motor." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43403.

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<p>Permanent magnet brushless DC motors that have found wide application in high performance servo drives need absolute rotor position sensors. However, the cost of the position sensor limits the use of brush less DC motors for low performance applications such as automotive and home appliances. A sensorless starting scheme for brushless DC motors is studied in this thesis. A hardware implementation of the starting scheme has been instrumented. The modeling and simulation of the sensorless starting performance of brushless DC motors have been accomplished to gain the insight into the process.

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5

Gan, Jinyun, and 干金云. "Design, analysis and control of multiphase flux regulated permanent magnet brushless DC motor drives." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31245304.

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6

Wang, Zheng, and 王政. "Chaoization and stabilization of electric motor drives and their industrial applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40687594.

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7

Wang, Zheng. "Chaoization and stabilization of electric motor drives and their industrial applications." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B40687594.

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8

Ai, Yong-le. "Novel direct field and torque control of six-phase induction machine with special phase current waveform." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/489.

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9

Borojević, Dušan. "Nonlinear algorithms for fast and robust control of electrical drives." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/74723.

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Several new nonlinear algorithms for speed control of electrical drives are developed. They are compared with the algorithms for integral-proportional (I-P) control, sliding mode control (SLM) and adaptive control which uses the torque and parameter observer. To achieve fast and robust response, all algorithms use very large gains. In a new, variable limit PI (VLPI) control algorithm, integrator windup is completely prevented by using a high gain, "variable dead zone" nonlinearity as a local feedback over the integrator. Recently proposed soft variable structure (SVS) control, derived by u

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10

Jenkins, James Scott. "Operation of a brushless DC drive for application in hybrid electric vehicles." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/Thesis_JJenkins_09007dcc8032dbaa.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed October 25, 2007) Includes bibliographical references (p. 61-62).

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11

Welchko, Brian A. "A high power DC motor controller for an electrical race car using power MOSFETS." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1239733975.

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12

Rajagopalan, Satish. "Detection of Rotor and Load Faults in BLDC Motors Operating Under Stationary and Non-Stationary Conditions." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11524.

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Brushless Direct Current (BLDC) motors are one of the motor types rapidly gaining popularity. BLDC motors are being increasingly used in critical high performance industries such as appliances, automotive, aerospace, consumer, medical, industrial automation equipment and instrumentation. Fault detection and condition monitoring of BLDC machines is therefore assuming a new importance. The objective of this research is to advance the field of rotor and load fault diagnosis in BLDC machines operating in a variety of operating conditions ranging from constant speed to continuous transient operat

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13

Smith, Robert Albert. "A performance study of a voltage-fed reluctance synchronous machine." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1078.

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Submitted to the Department of Electrical Engineering in Fulfilment of the Requirements for the Magister Technologiae in Electrical Engineering at the Cape Peninsula University of Technology SUPERVISOR: E. VOSS NOVEMBER 2013<br>The reluctance synchronous machine (RSM) operates on the principle of magnetic reluctance, which is produced through a careful selection of rotor flux barriers and cut-outs. Magnetic reluctivity is the resistance to magnetic flux and can be directly related to the principles of Ohm’s law in electrical circuits. Although reluctance motors have been known for more than 15

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14

TORRES, ALEXANDRE ANDRADE. "DIRECT-CURRENT MOTOR MODELING USING BOND GRAPHS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1998. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7468@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Este trabalho tem por objetivo a modelagem do comportamento dinâmico do motor de CC shunt, através da metodologia dos grafos de ligação. Primeiro será feito um levantamento de todos os parâmetros mecânicos, elétricos e magnéticos da máquina. O segundo passo será a obtenção de um grafo de ligação do motor e de suas respectivas equações de estado representativas. Através destas equações e dos parâmetros obtidos em laboratório será montado um modelo de simulação computacional pelo Matlab para verificação do comportamento da

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15

Knight, Matthew John. "Precision control of a sensorless brushless direct current motor system." Thesis, University of Plymouth, 2002. http://hdl.handle.net/10026.1/2565.

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Sensorless control strategies were first suggested well over a decade ago with the aim of reducing the size, weight and unit cost of electrically actuated servo systems. The resulting algorithms have been successfully applied to the induction and synchronous motor families in applications where control of armature speeds above approximately one hundred revolutions per minute is desired. However, sensorless position control remains problematic. This thesis provides an in depth investigation into sensorless motor control strategies for high precision motion control applications. Specifically, me

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16

Besson, Pierre. "Using of transcranial direct-current stimulation during motor task for a better outcome." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONT4004/document.

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De tout temps, les humains ont cherché différents moyens pour améliorer leur quotidien. Avec les avancées technologiques actuelles, cette quête s’en trouve facilitée, notamment dans la volonté d’accroître leurs capacités cognitives et/ou motrices. La neuro imagerie permet dorénavant de renseigner les aires cérébrales activées lors de différentes tâches fonctionnelles. Il est aussi possible de moduler l’activité cérébrale en stimulant localement le cerveau avec de faibles courants électriques. Une des techniques les plus répandues à cet effet est appelée tDCS pour transcranial direct current st

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17

Legha, Daniel. "Predictive maintenance and remote diagnosis for electro-mechanical drives of Very High Speed Trains." Electronic Thesis or Diss., La Rochelle, 2023. http://www.theses.fr/2023LAROS015.

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L'objectif principal de cette recherche est de mettre en œuvre des méthodes de diagnostic prédictif et à distance pour les systèmes d'accessibilité du train, qui sont entraînés par des moteurs à courant continu. Ces systèmes sont les suivants : Les portes intérieures, le gap filler, la porte d'accès des passagers et l'ascenseur. La recherche aborde de multiples équations de maintenance prédictive et de télédiagnostic, telles que : Test de la tension de la courroie, pour tous les types de portes intérieures. Le bon état de la butée d'ouverture de la porte, pour tous les types de portes intérieu

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18

Gidyk, Darryl C. "Modulation of compensation and recovery in a rat model of motor cortex stroke : implications of transcranial direct current stimulation." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, c2011, 2011. http://hdl.handle.net/10133/3236.

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The present thesis examines the effects of transcranial direct current stimulation and forelimb rehabilitation on motor recovery after stroke in rats. Post-stroke motor outcomes were quantified using an innovative battery of behavioural tests and high resolution, in vivo electrophysiology was employed to examine coherence of neural activity between hemispheres. It was shown that rats that received brain stimulation concurrently with forelimb rehabilitation displayed functional recovery, whereas rats that received rehabilitation alone partially regained motor function, but the improvements were

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19

Ashworth-Beaumont, Jim. "The effect of anodal transcranial direct current stimulation on spatial motor skill learning in healthy and spinal cord injured humans." Thesis, Brunel University, 2012. http://bura.brunel.ac.uk/handle/2438/7376.

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Anodal transcranial direct current stimulation (tDCS) is an intervention which is thought to enhance motor learning in healthy and stroke-injured states, when applied adjunctively during skill learning. We set out to investigate whether anodal tDCS might enhance functional rehabilitation from incomplete tetraplegic SCI. To address current limitations in the measurement of task-dependent skill, a novel integrated skill training and measurement task, the Motor Skill Rehabilitation Task (MSRT) was designed and developed. Measures of performance from this task delivered the functional measure of s

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20

Hoseini, Najmeh. "The effect of motor point associative stimulation (MPAS) and transcranial direct current stimulation (tDCS) on manual dexterity and sensorimotor neurophysiology." Thesis, Indiana University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3712436.

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<p> Manual dexterity, the ability to manipulate objects with the hands, and the related position sense, or proprioception, are often impaired after stroke. Associative stimulation of motor points (MPAS) in hand muscles is known to modify motor cortex excitability and improve manual dexterity (McDonnell and Ridding, 2006). </p><p> However, it is not known whether the effect of this peripheral stimulation can be increased by central stimulation of sensorimotor cortex, in terms of function, proprioception, or cortical neurophysiology. Here we compare the functional and neurophysiological conseq

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21

Scheffler, Grit. "The potential of transcranial direct current stimulation to facilitate motor learning in children and young people with hemiplegic cerebral palsy." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=201982.

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Transcranial direct current stimulation (tDCS) is a non-invasive stimulation technique that modulates brain function by increasing or decreasing cortical excitability (Nitsche & Paulus, 2001). In chronic stroke patients tDCS has been shown to improve function of the affected arm when combined with rehabilitative motor training (e.g. Lindenberg et al., 2010) and thus has the potential to accelerate motor learning. Its potential as a treatment for upper limb function in hemiplegic cerebral palsy (CP) had not been explored, which was the principle aim of this doctorate. After literature reviews o

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22

Bachtiar, Velicia Elizabeth. "Transcranial stimulation of the human primary motor cortices." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:0a0f5502-e07c-4d8c-bc04-10c0a1f107f3.

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The primary aim of this thesis is to investigate the physiological effects of transcranial direct current stimulation (tDCS) as applied to the primary motor cortex (M1). This research was largely motivated by the need to understand the basic physiological changes of tDCS, in order to evaluate its use as a potential tool in recovery after stroke, as well as its more general applicability as a tool to modulate plasticity. The experiments in this thesis assess the ability of tDCS to modulate the primary motor cortex in healthy controls. The effects of tDCS on cortical GABA and motor resting state

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23

Buzuluk, A. "Fully Integrated Smart BLDC Motor Driver." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/41131.

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There is tendency for using lot of electromechanical drives instead of mechanical to create more automatic and convenient systems. This means increase of number of DC motors in different devices such as cars, air conditions, computers, household appliances, manufacture machines etc. All this motors have to be driven in different operation modes. Such parameters as rotation speed, current angle, torque, noise should be controlled. Fully integrated DC Motor driver is the cheapest and the most smart solution.

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24

Lommen, Jonathan Lyon Jacob. "Effects of Transcranial Direct-Current Stimulation on Gait Initiation in People with Parkinson’s Disease." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39959.

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Background: Gait initiation is a major issue in Parkinson’s disease (PD). Moreover, the effect of current treatment on motor deficits vary alongside individual differences and disease severity. In some cases, postural instability has been documented as a major side-effect and refractory symptom to dopaminergic medication. Despite these shortcomings, research involving other forms of therapy including deep brain stimulation (DBS) and transcranial magnetic stimulation (TMS), has evidenced the improvement of postural deficits in PD. In this regard, there is a strong rational for the modulation of

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25

Amadi, Ugwechi. "Transcranial stimulation to enhance cortical plasticity in the healthy and stroke-affected motor system." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:bb27ac6f-a79d-459a-b5a0-e9a209ac7132.

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This thesis investigated transcranial direct current stimulation (tDCS) as applied to the motor system, and its ability to modulate underlying cortical processes and resultant motor behaviours. Functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) were employed to assess the extent to which tDCS induces quantifiable changes in neural structure and function in controls and stroke patients. Modifications in the connectivity of intrinsic functional networks following tDCS application were examined using resting state fMRI. Polarity-specific changes were found: c

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26

Wall, Mark John. "Modulation of the swimming motor pattern in Xenopus embryos of GABAâ†B receptors and by direct reduction of potassium currents." Thesis, University of Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358228.

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27

MELLO, Marina Almeida de. "Efeitos da estimulação transcraniana por corrente contínua cerebelar sobre o aprendizado motor de indivíduos saudáveis." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18281.

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Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2017-02-02T17:00:32Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação Marina final.pdf: 996056 bytes, checksum: 367af6eebf7daf0cf46adf145aa4c32c (MD5)<br>Made available in DSpace on 2017-02-02T17:00:32Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação Marina final.pdf: 996056 bytes, checksum: 367af6eebf7daf0cf46adf145aa4c32c (MD5) Previous issue date: 2016-04-01<br>CNPQ<br>Vários estudos têm sugerido que o cer

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28

Macías, Cubeiro Rosa. "Development and Implementation of a Search and Locate Actuator System." Thesis, KTH, Elektrisk energiomvandling, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-109706.

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Over the last years, electrical roads have emerged as a cost effective and environmentally friendly solution towards a transportation system with less dependency on fossil fuels. This thesis presents the design of a search and locate system for road-bound conductive electrical roads with position control in two axes. The system is intended to find and follow the position of an electrified rail. The actuator system constitutes a firm groundwork for further research and development in this field. A laboratory test set up has been designed and both hardware and software parts have been constructe

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29

Gordon, Pedro Caldana. "Excitabilidade cortical motora como preditora de resposta na esquizofrenia." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/5/5169/tde-14022019-084004/.

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O desenvolvimento da estimulação magnética transcraniana (EMT) permitiu o estudo de potenciais evocados motores eliciados pela estimulação direta do córtex cerebral de forma não-invasiva. Foi observado que diferentes paradigmas de estimulação cortical por EMT apresentam diferentes padrões de resposta, que posteriormente foram associados ao funcionamento de circuitos corticais GABAérgicos e glutamatérgicos do córtex motor, compondo assim índices de excitabilidade cortical motora (ECM). Ademais, desvios da normalidade de tais índices foram encontrados em diversas condições clínicas, incluindo tr

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30

Gottwald, Michal. "Dynamický model stejnosměrného motoru s využitím metody konečných prvků." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219003.

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My diploma thesis deals with a specific dynamic model of DC motor with the parameters obtained from the calculation and from the program using the finite element method. It shows how much accurate results can be achieved in the model, if you use only the values which can be measured, recorded and calculated on the engine. This thesis contens three parts. First part describes the structure and function of DC motor and the basic principle and the use of FEM. Next is calculation analytical and numerical parameters. The search parameters include torque, resistance and inductance of armature windin

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31

Akremi, Haifa. "Évaluation de l’efficacité de l’application de la stimulation à courant direct sur l’apprentissage moteur des enfants ayant un trouble de l’acquisition de la coordination." Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11092.

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Introduction : Les enfants ayant un trouble de l‘acquisition de la coordination (TAC) éprouvent de la difficulté à apprendre des gestes moteurs, particulièrement ceux demandant de la coordination motrice. Des nombreuses études en neuroimagerie ont mis en évidence une diminution de l‘activité neuronale au niveau du cervelet, ce qui pourrait être à l‘origine des difficultés d‘apprentissage moteur chez les enfants ayant un TAC. Augmenter l‘activité neuronale au niveau du cervelet afin d‘améliorer l‘apprentissage et la coordination motrice pourrait être une avenue prometteuse. La stimulation à cou

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32

Vala, Tomáš. "Analýza a inovace elektrických motorků pro automobily." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219751.

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Electric drives used in automotive industry are often based on standard DC motor as it is widely recognised as mature and reliable technology. The most common applications of DC motors in automotive industry are starters and wind screen wiper motors. Aim of this thesis is to provide design overview of typical automotive DC motor therefore main parts and features of the machine will be described in detail. Main disadvantage of DC motor is „sliding contact“ between commutator and carbon brushes which introduces source of electromagnetic disturbance and requires regular maintenance. Within this p

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33

Soares, Foerster Aguida [Verfasser], Michael [Akademischer Betreuer] Nitsche, André [Gutachter] Niklas, and Siegmar [Gutachter] Blumentritt. "Optimization of transcranial direct current stimulation (tDCS) to modulate lower limb motor network in healthy humans / Aguida Soares Foerster ; Gutachter: André Niklas, Siegmar Blumentritt ; Betreuer: Michael Nitsche." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1166670805/34.

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34

MELO, Lorena Figueiredo de. "Efeitos das estimulações cerebelares não invasivas no aprendizado motor e equilíbrio de indivíduos saudáveis." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18609.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-04-20T13:29:35Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação_Lorena Melo.pdf: 5009694 bytes, checksum: 8c547ec6fe15f072172ade3743762b9f (MD5)<br>Made available in DSpace on 2017-04-20T13:29:35Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação_Lorena Melo.pdf: 5009694 bytes, checksum: 8c547ec6fe15f072172ade3743762b9f (MD5) Previous issue date: 2016-07-12<br>CAPES<br>A presente dissertação apr

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35

Florian, Radim. "Model nelineární soustavy." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228233.

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The Thesis provides the project and realization of non-linear system, consisting of direct electric motor and dynamo that are linked together with flexible connector. Firstly, there are decscribed the principles of turns control in direct motor. Secondly, the thesis shows the construction of operating panel with microcontroller PIC16F877. Finally, the last part brings the evaluation of mesurements and suggests various improvements of the operational panel.

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36

Mosayebi, Samani Mohsen [Verfasser], Michael [Akademischer Betreuer] Nitsche, Adam Akademischer Betreuer] Woods, and Jens [Gutachter] [Haueisen. "Optimizing the neuroplastic effects of cathodal transcranial direct current stimulation over the primary motor cortex and transferability to prefrontal cortex / Mohsen Mosayebi Samani ; Gutachter: Jens Haueisen ; Michael Nitsche, Adam Woods." Ilmenau : TU Ilmenau, 2021. http://d-nb.info/1226092284/34.

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37

Baratieri, Cassio Luciano. "Controle de velocidade sensorless de motores brushless DC submetidos a variações periódicas de carga." Universidade Federal de Santa Maria, 2011. http://repositorio.ufsm.br/handle/1/8493.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This master thesis presents a sensorless speed control drive of Brushless DC motors used in reciprocating compressors. These compressors cause periodic load torque variations on the motor, consequently mechanical vibrations and acoustic noise are presented as well. As a result, a discrete speed controller based on the internal model principle is proposed. This controller aims to track the speed reference and to reduce the periodic torque disturbances caused by the compressor. The proposed controller consists of a rotor position and

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38

Kotačka, Petr. "Zařízení na výrobu vlákna z termoplastu PET pro použití k 3D tisku metodou FDM." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254355.

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This thesis deals with design of equipment for the production of PET termoplastic fibre to be used in 3D printing by means of FDM method. Concise survey of plastics processing methods is presented herein, furthermore, structural design of equipment with necessary engineering calculations is included as well. Drawing documents with the total economic evaluation is a part of this thesis too.

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39

Lapenta, Olivia Morgan. "Efeito da neuromodulação em ritmo mu durante observação e mentalização de movimentos biológicos e não-biológicos." Universidade Presbiteriana Mackenzie, 2012. http://tede.mackenzie.br/jspui/handle/tede/1584.

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Made available in DSpace on 2016-03-15T19:39:55Z (GMT). No. of bitstreams: 1 Olivia Morgan Lapenta.pdf: 1151745 bytes, checksum: 91e51a2bad20664489c6aae6c59924b6 (MD5) Previous issue date: 2012-08-17<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The Mental Simulation theory suggests activation of the motor network during imagery and execution of movements, similarly to the activation during observation and execution of actions, which is mediated by the Mirror Neuron System. This activation can be measured using eletroencefalography register of Mu rhythm suppression. It

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40

Špaček, Ladislav. "Analýza a inovace elektrických motorků pro automobily." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219009.

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Direct current motors and stepping motors are very often used for electric drives in cars. The most frequent representatives of direct current motors are electric starter and wind- screen wiper motor. Stepping motors are very often used for electric regulating of outsides driving mirrors and seats. This study is focused on innovation and DC permanent magnet motor. The disadvanage of direct current motors is so called „sliding contact“. A possible compensation of direct current motor are EC (electronically commutator) motors that do not need sliding contact for their work.

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41

Sláma, Miloslav. "Mechanismus vysouvání pastorku automobilového startéru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221191.

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The thesis describes ways ejection pinions automotive starter and evaluation of the advantages and disadvantages of each solution. The first chapter deals with the principle of operation of DC motors and starters parameters. In the second part, the individual systems are theoretically discussed in terms of design and their advantages and disadvantages. The third part is focused on the most common system, which is analyzed in terms of mechanical and electrical reliability. The last point of the work is to design an experimental analysis Reach starter pinion.

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42

Lopes, Jamile Benite Palma. "Realidade virtual e estimulação transcraniana por corrente contínua anódica para melhora da função motora de membros superiores em crianças com síndrome de down: ensaio clínico controlado aleatorizado e duplo cego." Universidade Nove de Julho, 2017. http://bibliotecatede.uninove.br/handle/tede/1871.

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Submitted by Nadir Basilio (nadirsb@uninove.br) on 2018-07-19T17:12:32Z No. of bitstreams: 1 Jamile Benite Palma Lopes.pdf: 2604798 bytes, checksum: 02648b7db4e837bd186b6ad03db7b39b (MD5)<br>Made available in DSpace on 2018-07-19T17:12:32Z (GMT). No. of bitstreams: 1 Jamile Benite Palma Lopes.pdf: 2604798 bytes, checksum: 02648b7db4e837bd186b6ad03db7b39b (MD5) Previous issue date: 2017-10-26<br>Objective: To perform a comparative analysis of the effects of manual reach training through virtual reality in the upper limb, with and without the association of transcranial stimulation by direct c

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43

Agboada, Desmond [Verfasser], Michael [Gutachter] Nitsche, Carmelo M. [Gutachter] Vicario, and Klaus [Gutachter] Funke. "A systematic evaluation of stimulation-specific parameters of anodal transcranial direct current stimulation for inducing LTP-like plasticity in the primary motor cortex / Desmond Agboada ; Gutachter: Michael Nitsche, Carmelo M. Vicario, Klaus Funke ; International Graduate School of Neuroscience." Bochum : Ruhr-Universität Bochum, 2021. http://d-nb.info/1226429122/34.

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44

Marques, Filho Paulo Ricardo. "Impacto da estimulação transcraniana por corrente contínua (ETCC) na resposta comportamental e neuroquímica de ratos submetidos a um modelo de dor neuropática." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/110202.

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A Associação Internacional para Estudos da Dor (IASP) define a dor neuropática como a dor que surge diretamente de uma lesão ou doença que afeta o sistema somatossensorial. Os sintomas mais característicos são a hiperalgesia e a alodinia. Além disso, alterações comportamentais como transtornos de ansiedade são comorbidades comuns associadas à dor crônica com características neuropáticas. Os métodos de neuromodulação transcraniana como a ETCC tem se mostrado promissores no tratamento da dor e de alguns transtornos neuropsiquiátricos, uma vez que parecem promover alterações neuroplásticas em nív

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45

Rego, Jeferson Tafarel Pereira do. "Efeito da estimula??o transcraniana por corrente cont?nua an?dica sobre o controle do movimento em para-halterofilistas." Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14628.

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Made available in DSpace on 2014-12-17T14:44:19Z (GMT). No. of bitstreams: 1 JefersonTPR_DISSERT.pdf: 1206303 bytes, checksum: 925c332309b72a390145b34b32b2ac27 (MD5) Previous issue date: 2014-03-21<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>Introduction: The sport practiced by people with disabilities has been growing in recent years. Consequently, advances in assessment and training methods have emerged. However, the paralympic sport keeps in tow these advances, with few specific studies that consider disability as intervening factor. The transcranial direct current s

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46

Guimarães, ádller de Oliveira. "Algoritmo genético aplicado no controle de posição do rotor de um motor de corrente contínua com rejeição a distúrbios por ação feedforward." Universidade Federal Rural do Semi-Árido, 2013. http://bdtd.ufersa.edu.br:80/tede/handle/tede/517.

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Made available in DSpace on 2016-08-31T13:33:36Z (GMT). No. of bitstreams: 1 AdllerOG_DISSERT.pdf: 1624176 bytes, checksum: b3a8115396f3b1d6c0110178978f22e3 (MD5) Previous issue date: 2013-12-27<br>The versatility of direct current machines combined with the relative simplicity of their drive systems ensures its continued use in a wide variety of applications in industrial electrical systems, more specifically in applications that requiring a wide range of speed and position control of the rotor. In this work, a new method for tuning Proportional-Integral-Derivative (PID) controllers with di

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47

ANDERSSON, JOHAN, and RICKARD HÖGLUND. "Electric Load Driven Longboard." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279809.

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This bachelor’s thesis aims to show an extensive overview of all the parts that build up an electric load driven longboard and see if a load controlled longboard can be seen as a safe, comfortable and convenient alternative to the more common remote controlled longboard. The thesis will also answer how weight can be measured on a longboard in the most effective way, what the most comfortable riding technique is and what a good motor-battery configuration to be able to travel at 30 km/h and 10 km would be. The longboard measures the weight distribution with load cells located between the deck a

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48

Šíl, Petr. "Návrh a realizace malosériové výrobní linky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254460.

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This Master's Thesis is focused on the design and control of a small-series production line, for the production of segmetal arches and plastic reductions. It is about the conversion from a semi-automatic line to a fully automatic line. The production line consists of an extruder, a cutting unit, a exhaust unit, three pressing machines and a manipulator. Every single machine has a custom control for which was selected a baseplate with microcontroler ATmega 128 and designed powerful part of inputs and outputs. There is a simple communication between the machines. Appropriate elements were used f

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49

Abdellatif, Meriem. "Continuité de service des entraînements électriques pour une machine à induction alimentée par le stator et le rotor en présence de défauts capteurs." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0107/document.

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Le développement de commandes en boucle fermée pour des entraînements électriques nécessite l'installation de capteurs pour avoir l'information de la rétroaction. Cependant, un éventuel défaut survenant sur l'un des capteurs installés (de courant, de vitesse/position,…) implique un disfonctionnement de la commande conduisant dans la plupart du temps à la mise hors service du système. Ces conséquences sont contraires aux exigences des industriels qui demandent des degrés de fiabilité du système de plus en plus élevés. Des statistiques montrent que le défaut capteur est fréquent. Il est donc imp

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50

Cabibel, Vincent. "Mécanismes physiopathologiques de l’altération de la commande motrice dans la bronchopneumopathie chronique obstructive." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONT4004.

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La bronchopneumopathie chronique obstructive (BPCO) est une pathologie respiratoire chronique présentant de nombreuses comorbidités. La faiblesse musculaire, caractérisée par une diminution de la force musculaire (de 30% en moyenne par rapport aux sujets sains) en dehors de tout état de fatigue, est une complication majeure de la pathologie impactant très largement la vie des patients. La production de force dépend de deux processus physiologiques : la capacité du système nerveux à activer le muscle et la capacité du muscle à réaliser une contraction. Ces deux processus sont défaillants dans l

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