Academic literature on the topic 'Park’s vector'

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Journal articles on the topic "Park’s vector"

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Messaoudi, Mustapha, Aymen Flah, Abdullah Alhumaidi Alotaibi, Ahmed Althobaiti, Lassaad Sbita, and Claude Ziad El-Bayeh. "Diagnosis and Fault Detection of Rotor Bars in Squirrel Cage Induction Motors Using Combined Park’s Vector and Extended Park’s Vector Approaches." Electronics 11, no. 3 (2022): 380. http://dx.doi.org/10.3390/electronics11030380.

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The induction motor (IM) is considered to be one of the most important types of motors used in industries. A sudden failure in this machine can lead to unwanted downtime, with consequences in costs, product quality, and safety. Over the last decade, several methods and techniques have been proposed to diagnose and detect faults in induction machines. In this paper, we present the development of a new algorithm based on the combination of both the Park’s vector approach (PVA) and the extended Park’s vector approach (EPVA) for broken rotor bars (BRBs) fault detection and identification. This fau
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Safin, Nail, Vladimir Prakht, and Vladimir Dmitrievskii. "Bearing Fault Diagnostic of Induction Motor by Stator Currents Analysis Based on Park’s Vectors Approach." Applied Mechanics and Materials 698 (December 2014): 83–89. http://dx.doi.org/10.4028/www.scientific.net/amm.698.83.

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This paper deals with the possibilities of bearing fault diagnosis of induction motors by stator currents analysis based on Park’s vector approach. The main theoretical aspects, the experimental results and their analysis are presented. It is shown that preventive stator current diagnostics of induction motors based on Park’s vector allows us early detection of bearing defects in the inner and outer races. The current spectra additional harmonics appearing in the case of bearing damage are found.
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Wei, Lipeng, Xiang Rong, Haibo Wang, Shuohang Yu, and Yang Zhang. "Method for Identifying Stator and Rotor Faults of Induction Motors Based on Machine Vision." Mathematical Problems in Engineering 2021 (January 21, 2021): 1–13. http://dx.doi.org/10.1155/2021/6658648.

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The detection results need to be analyzed and distinguished by professional technicians in the fault detection methods for induction motors based on signal processing and it is difficult to realize the automatic identification of stator and rotor faults. A method for identifying stator and rotor faults of induction motors based on machine vision is proposed to solve this problem. Firstly, Park’s vector approach (PVA) is used to analyze the three-phase currents of the motor to obtain Park’s vector ring (PVR). Then, the local binary patterns (LBP) and gray level cooccurrence matrix (GLCM) are co
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Rasid, Syidy Ab, Konstantinos N. Gyftakis, and Markus Mueller. "Comparative Investigation of Three Diagnostic Methods Applied to Direct-Drive Permanent Magnet Machines Suffering from Demagnetization." Energies 16, no. 6 (2023): 2767. http://dx.doi.org/10.3390/en16062767.

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Direct-drive permanent magnet machines are ideal candidates for remote renewable applications, due to their independence from gearboxes and minimization of maintenance needs. However, faults may still appear in the generator of such a machine and affect its operation and production. Not only can demagnetization cause a catastrophic breakdown if left unchecked, but it also directly impacts the output quality of generators. As such, demagnetization is a topic of great interest. This paper investigated the sensitivity of three diagnostic methods—current signature analysis (CSA), Park’s vector app
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Gedzurs, Aleksejs. "Fault Diagnosis of Low-Power Three-Phase Induction Motor." Rural Sustainability Research 36, no. 331 (2016): 34–41. http://dx.doi.org/10.1515/plua-2016-0012.

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Abstract An Induction motor reliability survey at an egg processing plant shows that almost 50% of the total motor failures are fan induction motors. Visual investigations of the faulty fan motors show that the main cause of the induction motor failure is air gap eccentricity. In this study, experimental tests are performed on a 1.1kW three-phase induction motor to detect air gap eccentricity and overheating of the induction motor. Heating tests show that end shield housing temperature reaches 100°C with blocked air flow from the fan, which can reduce the lifespan of the bearing. Dimension mea
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Abitha, Memala W., and V. Rajini. "Virtual Instrumentation Based Analysis of Induction Motor." Advanced Materials Research 984-985 (July 2014): 970–76. http://dx.doi.org/10.4028/www.scientific.net/amr.984-985.970.

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The three phase induction motor is a popularly used machine in many of the industries, which is well known for its robustness, reliability, cost effectiveness, efficient and safe operation. The unnoticed manufacturing failure, mistakes during repair work, exceeding life time may be some of the causes of the induction motor failure, which may lead to the unknown shut down time of the industry. The condition monitoring plays important role as it has the influence on the production of materials and profit. In our work, the induction motor is modelled using stationary reference frame and analysed
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Escudero, Ricardo, Julien Noel, Jorge Elizondo, and James Kirtley. "Microgrid fault detection based on wavelet transformation and Park’s vector approach." Electric Power Systems Research 152 (November 2017): 401–10. http://dx.doi.org/10.1016/j.epsr.2017.07.028.

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Kumar, Rahul R., Litili O. Waisale, Jiuta L. Tamata, Andrea Tortella, Shahin H. Kia, and Mauro Andriollo. "Advanced Fault Detection and Severity Analysis of Broken Rotor Bars in Induction Motors: Comparative Classification and Feature Study Using Dimensionality Reduction Techniques." Machines 12, no. 12 (2024): 890. https://doi.org/10.3390/machines12120890.

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This paper presents an experimental investigation into the detection and classification of broken rotor bar (BRB) faults in a 1.1 kW squirrel cage induction motor (IM) across various load conditions and fault severities: 1.5 BRBs, 2 BRBs, 2.5 BRBs, and 3 BRBs. Motor current signature analysis (MCSA), fast Fourier transform (FFT), and the extended Park’s vector approach (EPVA) were used to explore the frequency spectra and identify characteristic fault frequencies (CFFs) associated with BRB faults. Following these exploration, the extended Park’s vector (EPV) current was used to calculate 15 st
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Bensaoucha, Saddam, Sid Ahmed Bessedik, Aissa Ameur, and Ali Teta. "Induction motors broken rotor bars detection using RPVM and neural network." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 38, no. 2 (2019): 596–615. http://dx.doi.org/10.1108/compel-06-2018-0256.

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Purpose The purpose of this study aims to focus on the detection and identification of the broken rotor bars (BRBs) of a squirrel cage induction motor (SCIM). The presented diagnosis technique is based on artificial neural networks (NNs) that use as inputs the results of the spectral analysis using the fast Fourier transform (FFT) of the reduced Park’s vector modulus (RPVM), along with the load values in which the motor operates. Design/methodology/approach First, this paper presents a comparative study between FFT applied on Hilbert modulus, Park’s vector modulus and RPVM to extract feature f
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Pradeep, Jayarama, and R. Devanathan. "Adoption of Park’s Transformation for Inverter Fed Drive." International Journal of Power Electronics and Drive Systems (IJPEDS) 5, no. 3 (2015): 366. http://dx.doi.org/10.11591/ijpeds.v5.i3.pp366-373.

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Park’s transformation in the context of ac machine is applied to obtain quadrature voltages for the 3-phase balanced voltages. In the case of a inverter fed drive, one can adopt Park’s transformation to directly derive the quadrature voltages in terms simplified functions of switching parameters. This is the main result of the paper which can be applied to model based and predictive control of electrical machines. Simulation results are used to compare the new dq voltage modelling response to conventional direct –quadrature (dq) axes modelling response in direct torque control – space vector m
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Dissertations / Theses on the topic "Park’s vector"

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Horňan, Bohdan. "Monitorování stavu mechatronických systémů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442530.

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This thesis is concerned with condition monitoring and quantitative analysis of synchronous motors. Constantly rising requirements on the reliability of motors develop new methods of predictive diagnostics, which can identify failure conditions in the initial stage. Created mechatronic systems with the implemented failure from pre-prepared PMSM model are tested by unconventional condition monitoring methods. Software solutions of diagnostics and model designs of the mechatronic systems are implemented in MATLAB & Simulink. Part of this work is also a short introduction to the issue with necess
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Gléba, Gergely. "Implementace algoritmů řízení elektrických motorů v systémech CompactRIO." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220195.

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This master’s thesis deals with the implementation of existing algorithms of electric AC motor control in Matlab Simulink to LabVIEW Control Design and Simulation. The first part of the thesis treats with the deduction of a mathematical model of an asynchronous motor, permanent magnet synchronous motor and with the theory of vector control of AC motors. In the next part there is a brief guide to create simulation algorithms in LabVIEW environment and to create the model of a motor with EMI functions in language C. The last part contains the comparison of Matlab Simulink and LabVIEW simulation
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Hrnčárek, Martin. "Moderní struktury řízení servosystémů se střídavými pohony." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218311.

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This master thesis deals with the modern algorithms of the asynchronous induction machine and permanent magnet induction machine. It focuses at vector control, direct torque control and input-output feedback linearization. It also describes a library creation and its usages in the Matlab – Simulink environment. The final part of this thesis contains an implementation of chosen algorithms on the DSC Freescale 56F800E family.
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Cardoso, Filho João Lopes. "A qualitative study of planar piecewise smooth vector fields." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8577.

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Submitted by Liliane Ferreira (ljuvencia30@gmail.com) on 2018-06-14T11:12:47Z No. of bitstreams: 2 Tese - João Lopes Cardoso Filho - 2018.pdf: 1729607 bytes, checksum: 8279e98ec23b68bab062f8c812957bf4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-06-15T10:25:16Z (GMT) No. of bitstreams: 2 Tese - João Lopes Cardoso Filho - 2018.pdf: 1729607 bytes, checksum: 8279e98ec23b68bab062f8c812957bf4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made availabl
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Perez, Otávio Henrique [UNESP]. "Bifurcações genéricas e relações de equivalência em campos de vetores suaves por partes." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/148944.

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Submitted by Otávio Henrique Perez null (otavio_perez@hotmail.com) on 2017-03-03T20:13:38Z No. of bitstreams: 1 DissertacaoOtavioHenriquePerez.pdf: 2570606 bytes, checksum: dd0f73a1627a83d453f101ef3a973d23 (MD5)<br>Approved for entry into archive by LUIZA DE MENEZES ROMANETTO (luizamenezes@reitoria.unesp.br) on 2017-03-09T17:45:41Z (GMT) No. of bitstreams: 1 perez_oh_me_sjrp.pdf: 2570606 bytes, checksum: dd0f73a1627a83d453f101ef3a973d23 (MD5)<br>Made available in DSpace on 2017-03-09T17:45:41Z (GMT). No. of bitstreams: 1 perez_oh_me_sjrp.pdf: 2570606 bytes, checksum: dd0f73a1627a83d453f101
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Dos, Santos Abade Leandro Alécio. "Human-carnivore conflict in Tanzania : modelling the spatial distribution of lions (Panthera leo), leopards (Panthera pardus) and spotted hyaenas (Crocuta crocuta), and their attacks upon livestock, in Tanzania’s Ruaha landscape." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:073a48ab-336a-45a1-ac9f-bc6996c1f58b.

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Tanzania’s Ruaha landscape is an international priority area for large carnivore conservation, harbouring roughly 10% of the world’s lions, and important populations of leopards and spotted hyaenas. However, these large carnivore populations are threatened by intense retaliatory killing due to human-carnivore conflict on village land around Ruaha National Park (RNP), mostly as a result of livestock predation by lions, leopards and spotted hyaenas. Moreover, a current lack of ecological data on the distribution of these carnivores hinders the development of effective strategies for conservation
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Contreras, Jeferson Arley Poveda. "Um estudo dos ciclos limites de campos suaves por partes no plano." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8268.

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Submitted by Franciele Moreira (francielemoreyra@gmail.com) on 2018-03-28T11:58:56Z No. of bitstreams: 2 Dissertação - Jeferson Arley Poveda Contreras - 2018.pdf: 763599 bytes, checksum: 6800571168e0aa9de85d151e4c912725 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-03-29T11:29:24Z (GMT) No. of bitstreams: 2 Dissertação - Jeferson Arley Poveda Contreras - 2018.pdf: 763599 bytes, checksum: 6800571168e0aa9de85d151e4c912725 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e980099
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Jacóia, Bruno de Paula. "Estabilidade estrutural dos campos vetoriais seccionalmente lineares no plano." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/45/45132/tde-21012015-214244/.

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Estudamos uma classe de campos de vetores seccionalmente lineares no plano denotada por X. Tais campos aparecem frequentemente em modelos matemáticos aplicados à engenharia. Baseados no trabalho de J. Sotomayor e R. Garcia [SG03], impondo condições sobre as singularidades, órbitas periódicas e separatrizes, definimos um conjunto de campos de vetores que são estruturalmente estáveis em X. Provamos que esse conjunto é aberto, denso e tem medida de Lebesgue total em X, o qual é um espaço vetorial de dimensão finita.<br>We study a class of piecewise-linear vector fields in the plane denoted by X.
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Santos, Mayk Joaquim dos. "Estudo qualitativo de campos suaves por partes via problema de perturbação singular." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/6852.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-02-16T11:16:03Z No. of bitstreams: 2 Dissertação - Mayk Joaquim dos Santos - 2017.pdf: 2151565 bytes, checksum: 0afafa6be7f2f9c3ee2a27ca9bf4bf24 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-02-16T11:16:36Z (GMT) No. of bitstreams: 2 Dissertação - Mayk Joaquim dos Santos - 2017.pdf: 2151565 bytes, checksum: 0afafa6be7f2f9c3ee2a27ca9bf4bf24 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made
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Velter, Mariana Queiroz. "Teoria do Averaging para campos de vetores suaves por partes." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/5568.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2016-05-19T12:02:56Z No. of bitstreams: 2 Dissertação - Mariana Queiroz Velter - 2016.pdf: 3434033 bytes, checksum: 280742df0a3947cbf0f1aa8039428a72 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-05-19T12:04:25Z (GMT) No. of bitstreams: 2 Dissertação - Mariana Queiroz Velter - 2016.pdf: 3434033 bytes, checksum: 280742df0a3947cbf0f1aa8039428a72 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<b
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Books on the topic "Park’s vector"

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Savchenko, Pol', Aleksandr Alekseev, Nikolay Ahapkin, et al. The Russian socio-economic system: realities and vectors of development. INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1087982.

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The monograph reveals the System as a way of development of Russian society, as the balance of the whole and the parts at the macro-, meso - and micro-level, mathematical modeling of the System, freedom and justice, man as a factor of production human capital institutional framework for the development of Russian Systems of state and market regulation, improve planning and forecasting, digitalization, political institutions, social functions of the state, social capital, social trend, demography and family, motivation, labour and entrepreneurship, the institutions of labour market regulation,
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Vaez-Zadeh, Sadegh. Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198742968.003.0001.

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An overview of permanent magnet synchronous (PMS) motors and the related control system are presented in this chapter as introductory materials for the rest of the book. The interconnections of the control system to the power electronic inverter and the motor are emphasized. In addition, the major parts of the system are overviewed. Pulse width-modulated voltage source inverter, as the most commonly used power converter in PMS motor drives, is briefly discussed. PMS motors configurations and operating principles are also presented after considering characteristics of permanent magnet materials
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Morawetz, Klaus. Kinetic Theory of Systems with SU(2) Structure. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198797241.003.0021.

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Systems with spin-orbit coupling and magnetic fields exhibit a SU(2) structure. Large classes of materials and couplings can be written into an effective spin-orbit coupled Hamiltonian with Pauli structure. Appropriate kinetic equations are derived keeping the quantum spinor structure. It results in coupled kinetic equations of scalar and vector distributions. The spin-orbit coupling, the magnetic field and the vector part of the selfenergy can be written in terms of an effective Zeeman field which couples both distributions. The currents and linear response are derived and the anomalous parts
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Khan, Aman, and Kenneth A. Scorgie. Forecasting Government Budgets. The Rowman & Littlefield Publishing Group, 2022. https://doi.org/10.5040/9781666990355.

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Forecasting is integral to all governmental activities, especially budgetary activities. Without good and accurate forecasts, a government will not only find it difficult to carry out its everyday operations but will also find it difficult to cope with the increasingly complex environment in which it has to operate. This book presents, in a simple and easy to understand manner, some of the commonly used methods in budget forecasting, simple as well as advanced. The book is divided into three parts: It begins with an overview of forecasting background, forecasting process, and forecasting metho
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Denninghoff, James S., and Frederick S. vom Saal. Sources of Contaminants in the Home. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190490911.003.0004.

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Exposure to contaminants in the home and all indoor spaces can cause disease, including chronic inflammation, allergy, and asthma. Controlling dust, which can contain mold spores, insect parts, fecal material, pet dander, skin fragments, packaging materials, dust mites, volatile cleaning agents, and carpet fragments, is essential for clean indoor air. Dust is a vector for chemical toxins and organic and inorganic materials, which are sources of inflammation. The triggered immune response plays a central role in the pathogenesis of asthma, allergy, and sinusitis. Controlling humidity is necessa
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Kuznetsov, Alexei. The Trump Phenomenon. INION RAN, 2020. http://dx.doi.org/10.31249/phtr/2020.00.00.

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The book, prepared by the INION’s team with the participation of scholars representing other leading academic institutes and universities, is a comprehensive analysis of the causes of Donald Trump’s election as President of the United States and basic features of his Administration’s domestic and foreign policies. The chapters of the book are grouped into seven parts: “Trump’s Victory as a Result of Fundamental Socio-political Shifts”, “‘New Populism’ and Donald Trump as Its Manifestation”, “Domestic Policies of Donald Trump”, “President Donald Trump as a Phenomenon of American Culture”, “Ques
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Vaez-Zadeh, Sadegh. Machine Modeling. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198742968.003.0002.

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This chapter presents dynamic and steady-state modeling of permanent magnet synchronous (PMS) machines with the help of reference frames. The modeling starts with a machine model in terms of phase variables. An equivalent two-axis model in a stationary reference is then obtained by a reference frame transformation. A further transformation to a two-axis rotor reference frame, with its direct axis aligned with the axis of a permanent magnet rotor pole, is derived. Another transformation to a two-axis stator flux linkage reference frame is also presented. Finally, a motor model in polar coordina
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Bialer, Philip, Kenneth Ashley, and John Grimaldi. Substance-Related and Addictive Disorder? The Special Role in HIV Transmission. Edited by Mary Ann Cohen, Jack M. Gorman, Jeffrey M. Jacobson, Paul Volberding, and Scott Letendre. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199392742.003.0014.

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Substance use disorders have been linked to HIV/AIDS since the beginning of the epidemic. Injecting drug use can serve as a mode of viral transmission and in some parts of the world and among certain populations is the primary vector of transmission. Substances of misuse implicated in HIV transmission include alcohol, cocaine, heroin, methamphetamine, and Ecstasy. Use of both non-injecting drugs and alcohol is also associated with increased sexual and other risk-taking behaviors and seroconversion. In addition, substance use disorders and other psychiatric disorders often coexist and can have
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Hurtado Briceño, Alberto José, Roberto Javier Mirabelli, Paula Ruiz Camacho, et al. Mercosur en el nuevo escenario latinoamericano. Ediciones Universidad Cooperativa de Colombia, 2022. http://dx.doi.org/10.16925/9789587603750.

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Este libro tiene por objetivo analizar el rol del Mercosur como vector de la integración latinoamericana. Para ello, se analizan las relaciones comerciales y de cooperación del bloque regional sudamericano con otros bloques, como la Asociación de Naciones del Sudeste Asiático (ASEAN), la Unión Europea (UE) y la Alianza del Pacífico. Se estudian los esfuerzos de liberalización del comercio electrónico en los procesos de integración de América Latina, la migración venezolana a países partes y asociados del Mercosur, la cooperación sur-sur en América Latina, la integración regional como mecanismo
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Wellman, Donald. Expressivity in Modern Poetry. Fairleigh Dickinson University Press, 2019. https://doi.org/10.5040/9781683935216.

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Expressivity in Modern Poetry explores three interrelated subjects. The first is a general exposition of the radical or deeply realistic aspects of the poetry and visual arts of the modem period. The focus is on the works of Ezra Pound as understood through a prism of postmodern thought. The second subject is the poetry and poetics of Charles Olson, a pivotal figure during the transition from modernism to postmodemism. The third subject is contemporary innovative poetry with special attention to transcultural, neobarroco, and language-centered aspects of composition. The grounding for this sec
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Book chapters on the topic "Park’s vector"

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Oñate, William, Yessenia Gallardo, Ramón Pérez, and Gustavo Caiza. "Comparative Analysis of High Frequencies for the Broken Bar Fault Diagnosis Using MCSA and Park’s Vector Demodulation." In Smart Innovation, Systems and Technologies. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4884-7_10.

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Werner, Doreen, and Helge Kampen. "4. Zoos and wildlife parks: a laboratory for the study of mosquitoborne wildlife diseases." In Ecology and Control of Vector-borne Diseases. Wageningen Academic Publishers, 2022. http://dx.doi.org/10.3920/978-90-8686-931-2_4.

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Li, Jun. "Anti-self-dual connections and stable vector bundles." In IAS/Park City Mathematics Series. American Mathematical Society, 1997. http://dx.doi.org/10.1090/pcms/004/03.

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Roczek, Krzysztof, and Marek Fidali. "Method of Fault Detection of Drive Systems Using Features of Park's Vector Hodograph." In Applied Condition Monitoring. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-31719-4_10.

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Marques Cardoso, A. J., and Luís M. R. Oliveira. "Power Transformers’ Fault Diagnostics by Park’s Vector Approach." In Transformers. CRC Press, 2017. http://dx.doi.org/10.1201/b12275-12.

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Mårtensson-Pendrill, Ann-Marie. "Vectors." In Physics for the Whole Body in Playgrounds and Amusement Parks. AIP Publishing, 2021. http://dx.doi.org/10.1063/9780735423503_app1.

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Parker, Eugene N. "The Optical Analogy." In Spontaneous Current Sheets In Magnetic Fields. Oxford University PressNew York, NY, 1994. http://dx.doi.org/10.1093/oso/9780195073713.003.0007.

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Abstract There is a basic geometrical relation between the magnitude and the pattern of a vector field F(r) in three, or more dimensions, called the optical analogy (Parker, 1981a, 1983, 1989a, 1991). The relation is based on the fact that the field lines of a potential field - coincide with the optical ray paths computed in an index of refraction .
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Phạm, Văn Quang. "La Nouvelle Revue Indochinoise : un vecteur de transferts culturels." In Hanoi-Paris. Éditions Kimé, 2020. http://dx.doi.org/10.3917/kime.espag.2019.01.0555.

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Gakhovich, Natalia, Oksana Kushnirenko, and Liliia Venger. "OVERCOMING THE CONSEQUENCES OF UKRAINIAN MANUFACTURING DEINDUSTRIALIZATION IN THE CONTEXT OF EUROPEAN INTEGRATION." In European vector of development of the modern scientific researches. Publishing House “Baltija Publishing”, 2021. http://dx.doi.org/10.30525/978-9934-26-077-3-30.

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In the paper, we investigate the main causes and consequences of de-industrialization manufacturing and identify important factors influencing the structural transformation of the industrial sector through the prism of global technological challenges. Important challenges identified include environmental challenges of the threatening impact of climate change, digitalization in all spheres of public life, the technological leadership of developed countries in context field of Industry 4.0, changes in the geopolitical landscape and trade conflicts between countries; migration and population agin
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Daniela Manzano Guzmán, Sandra, Jose Augusto Drummond, and Cristiane Gomes Barreto. "Undesirable Neighbours: Eucalyptus and Protected Areas." In Protected Area Management - Recent Advances [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99831.

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Eucalyptus is the common name of a set of exotic species present in the Brazilian territory. They have a strong invasive potential which is detrimental to the preservation of native floral formations, particularly in protected areas. This research seeks to (i) understand the stage of eucalyptus invasion in the Brasilia National Park; (ii) identify the main vectors of the invasive populations and (iii) verify the possible role of the adjoining Brasília National Forest in the invasion and (iv) consider possible conflicts between the roles of these two different categories of protected areas. A s
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Conference papers on the topic "Park’s vector"

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Zsuga, Adam, and Adrienn Dineva. "Machine Learning for Multi-Fault Classification in Park’s Vector Trajectories of PMSMs." In 2024 IEEE 22nd Mediterranean Electrotechnical Conference (MELECON). IEEE, 2024. http://dx.doi.org/10.1109/melecon56669.2024.10608573.

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Luo, Peng, Yanxia Yang, and Jinqiang Xu. "Detection of Inter-turn Short-circuit Fault in Induction Motors, by Park’s Vector Difference Approach." In 2021 IEEE 4th Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC). IEEE, 2021. http://dx.doi.org/10.1109/imcec51613.2021.9482130.

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Mahesh, Abishek, B. Aadhi Aadhavan, V. Valli Meenaa, et al. "Employment of ANN for Predictive Motor Maintenance and Bearing Fault Detection Using Park’s Vector Analysis." In 2022 IEEE 5th International Symposium in Robotics and Manufacturing Automation (ROMA). IEEE, 2022. http://dx.doi.org/10.1109/roma55875.2022.9915683.

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Goh, Yeong-Jin. "Fault Diagnostics of 3-phase Induction Motor using CNN with Park’s Vector Approach Input Data Configuration." In 2024 10th International Conference on Mechatronics and Robotics Engineering (ICMRE). IEEE, 2024. http://dx.doi.org/10.1109/icmre60776.2024.10532185.

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Ortiz-Medina, Raúl Arturo, Mauricio Sanabria-Villamizar, Irvin Lopez-Garcia, Francisco Javier Villalobos-Piña, Francisco Beltran-Carbajal, and Victor Arturo Maldonado-Ruelas. "Wavelet and Hilbert Huang Transforms Applied to Park’s Vector for Fault Detection in a PMSG Wind Turbine." In 2023 IEEE 6th Colombian Conference on Automatic Control (CCAC). IEEE, 2023. http://dx.doi.org/10.1109/ccac58200.2023.10333368.

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Sherwani, Ahmed, and Ali Kircay. "Improving the Characteristic of Percentage Differential Relay of Power Transformer using Rogowski Coil with Extended Park’s Vector Approach." In 2020 International Congress on Human-Computer Interaction, Optimization and Robotic Applications (HORA). IEEE, 2020. http://dx.doi.org/10.1109/hora49412.2020.9152858.

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Sharma, Amandeep, Shantanu Chatterji, and Lini Mathew. "A Novel Park’s Vector Approach for Investigation of Incipient Stator Fault Using MCSA in Three-Phase Induction Motors." In 2017 International Conference on Innovations in Control, Communication and Information Systems (ICICCI). IEEE, 2017. http://dx.doi.org/10.1109/iciccis.2017.8660892.

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Gurung, Saita, and Xin Wang. "A Novel Sensorless Direct Torque Control Technique of Interior Permanent Magnet Synchronous Motor." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70661.

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This paper presents a novel sensorless direct torque control of interior permanent magnet synchronous motor with resilient extended Kalman filter. In comparison to the field-oriented control scheme, direct torque control has advantages due to its simplicity (without Park’s transform or space-vector pulse-width-modulation), excellent transient response, high reliability and robustness. The interior permanent magnet synchronous motors have been extensively used in industrial applications due to their high efficiency, large torque to weight ratio, high performance and high reliability. Traditiona
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Ben Salem, Samira, Walid Touti, Khmais Bacha, and Abdelkader Chaari. "Induction motor mechanical fault identification using Park's vector approach." In 2013 International Conference On Electrical Engineering and Software Applications (ICEESA). IEEE, 2013. http://dx.doi.org/10.1109/iceesa.2013.6578381.

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Estima, Jorge O., Nuno M. A. Freire, and A. J. Marques Cardoso. "Recent advances in fault diagnosis by Park's vector approach." In 2013 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD 2013). IEEE, 2013. http://dx.doi.org/10.1109/wemdcd.2013.6525187.

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Reports on the topic "Park’s vector"

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Hardwick, Jonathan C. Porting a Vector Library: A Comparison of MPI, Paris, CMMD and PVM (or, I'll Never Have to Port CVL Again"). Defense Technical Information Center, 1994. http://dx.doi.org/10.21236/ada290231.

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Pstuty, Norbert, Mark Duffy, Dennis Skidds, et al. Northeast Coastal and Barrier Network Geomorphological Monitoring Protocol: Part I—Ocean Shoreline Position, Version 2. National Park Service, 2022. http://dx.doi.org/10.36967/2293713.

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Following a review of Vital Signs – indicators of ecosystem health – in the coastal parks of the Northeast Coastal and Barrier Network (NCBN), knowledge of shoreline change was ranked as the top variable for monitoring. Shoreline change is a basic element in the management of any coastal system because it contributes to the understanding of the functioning of the natural resources and to the administration of the cultural resources within the parks. Collection of information on the vectors of change relies on the establishment of a rigorous system of protocols to monitor elements of the coasta
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Burns, L. E. Line, grid, and vector data and plot files for the airborne geophysical survey data of parts of the southern National Petroleum Reserve-Alaska, Northwest Alaska. Alaska Division of Geological & Geophysical Surveys, 2006. http://dx.doi.org/10.14509/14501.

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Burns, L. E. CD-ROM containing gridded data, vector data, and location information of 2000 geophysical survey data for parts of the Aniak and Iditarod mining districts, southwestern Alaska. Alaska Division of Geological & Geophysical Surveys, 2000. http://dx.doi.org/10.14509/2722.

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Burns, L. E. Line, grid, and vector data and plot files for the airborne geophysical survey data of parts of the East Richardson, Liscum, and Black Mountain areas, Interior Alaska. Alaska Division of Geological & Geophysical Surveys, 2006. http://dx.doi.org/10.14509/14531.

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Burns, L. E. DVD containing profile data, gridded data, vector data, and location information of 2000 geophysical survey data for parts of the Aniak and Iditarod mining districts, southwestern Alaska. Alaska Division of Geological & Geophysical Surveys, 2000. http://dx.doi.org/10.14509/2721.

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Psuty, Norbert, Chritopher Menke, Andrea Habeck, and Jordan Raphael. Shoreline position monitoring at Fire Island National Seashore: 2017–2022 and 2007–2022 trend report. National Park Service, 2023. http://dx.doi.org/10.36967/2299483.

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The Shoreline Position Trend Report summarizes the results of data collected in 2017 through 2022 along the ocean-facing shoreline of Fire Island National Seashore in addition to data collected in 2007 through 2017. Data sets include a spatial depiction of annual shoreline position as well as statistical analysis describing annual and 5-year, and 15-year changes, all following the model presented in Psuty et al. (2022b). Generally, the largest vectors of shoreline position change were produced by natural events such as storms and by human-induced cultural events such as beach nourishment or dr
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Psuty, Norbert, Christopher Menke, Katherine Ames, Andrea Aabeck, and Casey Jones. Shoreline position and coastal topographical change monitoring at Assateague Island National Seashore: 2005–2020 trend report. National Park Service, 2022. http://dx.doi.org/10.36967/nrr-2293154.

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This trend report summarizes the results of shoreline position and coastal topography surveys conducted semi-annually from the spring of 2005 through the fall of 2020. Shoreline position was collected in the Assateague Island National Seashore (ASIS), the Assateague State Park, and the Chincoteague National Wildlife Refuge, whereas coastal topography was collected only in the Assateague Island National Seashore and the Assateague State Park. The assembled datasets are processed to provide spatial depictions and statistical analyses of annual changes, 5-year changes, and the extended 15-year ch
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McAlpin, Jennifer N., and Cassandra G. Ross. Houston Ship Channel Expansion Channel Improvement Project (ECIP) Numerical Modeling Report : Increased Channel Width Analysis. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/39739.

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The Houston Ship Channel is one of the busiest deep -draft navigation channels in the United States and must be able to accommodate larger vessel dimensions over time. The U.S. Army Engineer District, Galveston (SWG) requested the U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory perform hydrodynamic and sediment modeling of proposed modifications along the Houston Ship Channel. The modeling results are necessary to provide data for salinity and sediment transport analysis a s well as ship simulation studies. SWG provided a project alternative that includes
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Ruiz, Pablo, Craig Perry, Alejando Garcia, et al. The Everglades National Park and Big Cypress National Preserve vegetation mapping project: Interim report—Northwest Coastal Everglades (Region 4), Everglades National Park (revised with costs). National Park Service, 2020. http://dx.doi.org/10.36967/nrr-2279586.

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The Everglades National Park and Big Cypress National Preserve vegetation mapping project is part of the Comprehensive Everglades Restoration Plan (CERP). It is a cooperative effort between the South Florida Water Management District (SFWMD), the United States Army Corps of Engineers (USACE), and the National Park Service’s (NPS) Vegetation Mapping Inventory Program (VMI). The goal of this project is to produce a spatially and thematically accurate vegetation map of Everglades National Park and Big Cypress National Preserve prior to the completion of restoration efforts associated with CERP. T
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