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María Inés Valla
María Inés Valla (born 1956) is an Argentine electronic and power engineer specializing in power electronics and nonlinear control for electric power systems. She is a professor of electrical engineering at the National University of La Plata, affiliated with the National Scientific and Technical Research Council (CONICET) Institute for Research in Electronics, Control and Signal Processing (LEICI). Education and career Valla was born in Paraná, Entre Ríos on April 3, 1956. She earned an engineering degree from the National University of La Plata in 1980 and completed a doctorate there in 1994, under the joint supervision of Carlos F. Christiansen and José María Catalfo. She served as co-editor-in-chief of ''IEEE Transactions on Industrial Electronics'' from 2013 to 2018. Book Valla is the coauthor, with Sergio Alberto González and Santiago Andrés Verne, of the book ''Multilevel Converters for Industrial Applications'' (CRC Press, 2014). Recognition Valla received the ...
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Electronic Engineering
Electronic engineering is a sub-discipline of electrical engineering that emerged in the early 20th century and is distinguished by the additional use of active components such as semiconductor devices to amplify and control electric current flow. Previously electrical engineering only used passive devices such as mechanical switches, resistors, inductors, and capacitors. It covers fields such as analog electronics, digital electronics, consumer electronics, embedded systems and power electronics. It is also involved in many related fields, for example solid-state physics, radio engineering, telecommunications, control systems, signal processing, systems engineering, computer engineering, instrumentation engineering, electric power control, photonics and robotics. The Institute of Electrical and Electronics Engineers (IEEE) is one of the most important professional bodies for electronics engineers in the US; the equivalent body in the UK is the Institution of Engin ...
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Power Engineering
Power engineering, also called power systems engineering, is a subfield of electrical engineering that deals with the generation, transmission, distribution, and utilization of electric power, and the electrical apparatus connected to such systems. Although much of the field is concerned with the problems of three-phase electric power, three-phase AC power – the standard for large-scale power transmission and distribution across the modern world – a significant fraction of the field is concerned with the conversion between rectifier, AC and DC power and the development of specialized power systems such as those used in aircraft or for electric railway networks. Power engineering draws the majority of its theoretical base from electrical engineering and mechanical engineering. History Pioneering years Electricity became a subject of scientific interest in the late 17th century. Over the next two centuries a number of important discoveries were made including the incandes ...
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Power Electronics
Power electronics is the application of electronics to the control and conversion of electric power. The first high-power electronic devices were made using mercury-arc valves. In modern systems, the conversion is performed with semiconductor switching devices such as diodes, thyristors, and power transistors such as the power MOSFET and IGBT. In contrast to electronic systems concerned with the transmission and processing of signals and data, substantial amounts of electrical energy are processed in power electronics. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry, a common application is the Adjustable-speed drive, variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs starts from a few hundred watts and ends at ten ...
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Nonlinear Control
Nonlinear control theory is the area of control theory which deals with systems that are nonlinear system, nonlinear, time-variant system, time-variant, or both. Control theory is an interdisciplinary branch of engineering and mathematics that is concerned with the behavior of dynamical systems with inputs, and how to modify the output by changes in the input using feedback, Feed forward (control), feedforward, or filter (signal processing), signal filtering. The system to be controlled is called the "plant (control theory), plant". One way to make the output of a system follow a desired reference signal is to compare the output of the plant to the desired output, and provide feedback to the plant to modify the output to bring it closer to the desired output. Control theory is divided into two branches. Linear control theory applies to systems made of devices which obey the superposition principle. They are governed by linear equation, linear differential equations. A majo ...
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Electric Power
Electric power is the rate of transfer of electrical energy within a electric circuit, circuit. Its SI unit is the watt, the general unit of power (physics), power, defined as one joule per second. Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively. In common parlance, electric power is the production and delivery of electrical energy, an essential public utility in much of the world. Electric power is usually produced by electric generators, but can also be supplied by sources such as Electric battery, electric batteries. It is usually supplied to businesses and homes (as domestic mains electricity) by the electric power industry through an electrical grid. Electric power can be delivered over long distances by electric power transmission, transmission lines and used for applications such as Electric motor, motion, Electric light, light or Electric heat, heat with high ...
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National University Of La Plata
The National University of La Plata (, UNLP) is a national public research university located in the city of La Plata, capital of Buenos Aires Province, Argentina. It has over 90,000 regular students, 10,000 teaching staff, 17 departments and 106 available degrees. UNLP comprises the Rafael Hernández National College, the Victor Mercante Lyceum, the Bachelor of Fine Arts program, the School of Agronomy, the La Plata University Radio, the La Plata University Press and numerous academic centers for research and outreach including La Plata Museum of Natural Sciences, the University Public Library, the Samay Huasi Retreat for Artists and Writers, the Institute of Physical Education, the Astronomical Observatory and the Santa Catalina Rural Association. The institution began operations on April 18, 1897, as the ''Universidad Provincial de La Plata'' with Dardo Rocha as its rector. In 1905, Joaquín V. González, the Minister of Justice and Public Education of the government of ...
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National Scientific And Technical Research Council
The National Scientific and Technical Research Council (, CONICET) is an Argentina, Argentine Government of Argentina, government agency which directs and co-ordinates most of the scientific and technical research done in List of universities in Argentina, universities and institutes. History The National Scientific and Technical Research Council was established on 5 February 1958 by a decree of the national government. Its first director was Nobel Prize in Physiology or Medicine, Nobel Laureate Bernardo Houssay, Bernardo A. Houssay. Governed by a board independent from the federal government, it funds scientific research in three basic ways. Firstly, it gives grants for collective work to research teams of well-recognized scientists of every discipline, including social sciences and the humanities. Secondly, it has a payroll of about 6,500 researchers and 2,500 technicians working as employees in different categories, from ''investigador asistente'' (assistant researcher) to ...
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Paraná, Entre Ríos
Paraná () is the capital city of the Argentine province Entre Ríos, located on the eastern shore of the Paraná River, opposite the city of Santa Fe, capital of the neighbouring Santa Fe Province. The city has a population of 268,889 inhabitants within its urban area. Greater Paraná has a population of 312,713 inhabitants. () History During the 16th century, inhabitants of the city of Santa Fe settled at the other shore of the Paraná river. The first settlers called it “''Baxada del Paraná''”. Between 1854 and 1861, it was the capital city of the Argentine Confederation. Economy Paraná is not only the head of the provincial government, but also an important river port for the transshipment of cereals, cattle, fish, and lumber from the surrounding region. The principal industries installed are the manufacture of cement, furniture, and ceramics. Cityscape The city center brings together colonial churches, European styles seen in structures like the 3 de Febrer ...
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IEEE Fellow
, the Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office ... (IEEE) has 7,236 members designated Fellow, each of whom is associated with at least one of the 41 societies under the IEEE. The Fellow grade of membership is the highest level of membership, and cannot be applied for directly by the member – instead the candidate must be nominated by others. This grade of membership is conferred by the IEEE board of directors in recognition of a high level of demonstrated extraordinary accomplishment. * Aerospace and Electronic Systems Society – List of fellows * Antennas & Propagation Society – List of fellows * IEEE Broadcast Technology Society – List of fellows * Circuits and Systems Society – List of fellows * Communica ...
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1956 Births
Events January * January 1 – The Anglo-Egyptian Sudan, Anglo-Egyptian Condominium ends in Sudan after 57 years. * January 8 – Operation Auca: Five U.S. evangelical Christian Missionary, missionaries, Nate Saint, Roger Youderian, Ed McCully, Jim Elliot and Pete Fleming, are killed for trespassing by the Waorani people of Ecuador, shortly after making contact with them. * January 16 – Egyptian leader Gamal Abdel Nasser vows to reconquer Palestine (region), Palestine. * January 25–January 26, 26 – Finnish troops reoccupy Porkkala, after Soviet Union, Soviet troops vacate its military base. Civilians can return February 4. * January 26 – The 1956 Winter Olympics open in Cortina d'Ampezzo, Italy. February * February 2 – Austria and Israel establish diplomatic Austria–Israel relations, relations. * February 11 – British Espionage, spies Guy Burgess and Donald Maclean (spy), Donald Maclean resurface in the Soviet Union, after being missing for 5 years. * ...
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Living People
Purpose: Because living persons may suffer personal harm from inappropriate information, we should watch their articles carefully. By adding an article to this category, it marks them with a notice about sources whenever someone tries to edit them, to remind them of WP:BLP (biographies of living persons) policy that these articles must maintain a neutral point of view, maintain factual accuracy, and be properly sourced. Recent changes to these articles are listed on Special:RecentChangesLinked/Living people. Organization: This category should not be sub-categorized. Entries are generally sorted by family name In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full name of a person, although several give .... Maintenance: Individuals of advanced age (over 90), for whom there has been no new documentation in the last ten ...
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People From Paraná, Entre Ríos
The term "the people" refers to the public or common mass of people of a polity. As such it is a concept of human rights law, international law as well as constitutional law, particularly used for claims of popular sovereignty. In contrast, a people is any plurality of persons considered as a whole. Used in politics and law, the term "a people" refers to the collective or community of an ethnic group or nation. Concepts Legal Chapter One, Article One of the Charter of the United Nations states that "peoples" have the right to self-determination. Though the mere status as peoples and the right to self-determination, as for example in the case of Indigenous peoples (''peoples'', as in all groups of indigenous people, not merely all indigenous persons as in ''indigenous people''), does not automatically provide for independent sovereignty and therefore secession. Indeed, judge Ivor Jennings identified the inherent problems in the right of "peoples" to self-determination, as i ...
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