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Rafael Guarga
Rafael Andrés Guarga Ferro (born 23 August 1940 in Montevideo) is a Uruguayan industrial engineer and inventor. Career After graduating from the University of the Republic, Guarga had to leave his country due to the civic-military dictatorship. He pursued his career in Mexico, obtaining a doctorate at the National Autonomous University of Mexico. Back in Uruguay he devoted himself to lecturing; in 1992-1998 he served as Dean of the School of Engineering, and in 1998-2006 as Rector of the university. In the late 1990s Guarga invented the selective inverted sink (acronym SIS), a device used by farmers to protect plants from frost Frost is a thin layer of ice on a solid surface, which forms from water vapor in an above-freezing atmosphere coming in contact with a solid surface whose temperature is below freezing, and resulting in a phase change from water vapor (a gas) ....
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Montevideo
Montevideo () is the capital and largest city of Uruguay. According to the 2011 census, the city proper has a population of 1,319,108 (about one-third of the country's total population) in an area of . Montevideo is situated on the southern coast of the country, on the northeastern bank of the Río de la Plata. The city was established in 1724 by a Spanish soldier, Bruno Mauricio de Zabala, as a strategic move amidst the Spanish- Portuguese dispute over the platine region. It was also under brief British rule in 1807, but eventually the city was retaken by Spanish criollos who defeated the British invasions of the River Plate. Montevideo is the seat of the administrative headquarters of Mercosur and ALADI, Latin America's leading trade blocs, a position that entailed comparisons to the role of Brussels in Europe. The 2019 Mercer's report on quality of life, rated Montevideo first in Latin America, a rank the city has consistently held since 2005. , Montevideo was the ...
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Industrial Engineer
Industrial engineering is an engineering profession that is concerned with the optimization of complex processes, systems, or organizations by developing, improving and implementing integrated systems of people, money, knowledge, information and equipment. Industrial engineering is central to manufacturing operations. Industrial engineers use specialized knowledge and skills in the mathematical, physical and social sciences, together with the principles and methods of engineering analysis and design, to specify, predict, and evaluate the results obtained from systems and processes.Salvendy, Gabriel. Handbook of Industrial Engineering. John Wiley & Sons, Inc; 3rd edition p. 5 There are several industrial engineering principles followed in the manufacturing industry to ensure the effective flow of the systems, processes and operations. This includes Lean Manufacturing, Six Sigma, Information Systems, Process Capability and Define, Measure, Analyze, Improve and Control (DMAIC) ...
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Inventor
An invention is a unique or novel device, method, composition, idea or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an idea is unique enough either as a stand alone invention or as a significant improvement over the work of others, it can be patented. A patent, if granted, gives the inventor a proprietary interest in the patent over a specific period of time, which can be licensed for financial gain. An inventor creates or discovers an invention. The word ''inventor'' comes from the Latin verb ''invenire'', ''invent-'', to find. Although inventing is closely associated with science and engineering, inventors are not necessarily engineers or scientists. Due to advances in artificial intelligence, the term "inventor" no longer exclusively applies to an occupation (see human computers). Some inventions can be patented. The system of patents was established ...
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University Of The Republic
The University of the Republic ( es, Universidad de la República, sometimes ''UdelaR'') is Uruguay's oldest public university. It is by far the country's largest university, as well as the second largest public university in South America and the world's 57th largest by enrollment, with a student body of 137,757 undergraduate students in 2018 and 6,351 postgraduate students in 2012. It was founded on 18 July 1849 in Montevideo, where most of its buildings and facilities are still located. Its current rector is Rodrigo Arim. History The process of founding the country's public university began on 11 June 1833, when a law proposed by then-Senator Dámaso Antonio Larrañaga was passed. It called for the creation of nine academic departments; the President of the Republic would pass a decree formally creating the departments once the majority of them were in operation. In 1836 the House of General Studies was formed, housing the departments of Latin, philosophy, mathematics, th ...
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National Autonomous University Of Mexico
The National Autonomous University of Mexico ( es, Universidad Nacional Autónoma de México, UNAM) is a public research university in Mexico. It is consistently ranked as one of the best universities in Latin America, where it's also the biggest in terms of enrollment. A portion of UNAM's main campus in Mexico City, known as '' Ciudad Universitaria'' (University City), is a UNESCO World Heritage site that was designed by some of Mexico's best-known architects of the 20th century and hosted the 1968 Summer Olympic Games. Murals in the main campus were painted by some of the most recognized artists in Mexican history, such as Diego Rivera and David Alfaro Siqueiros. With acceptance rates usually below 10%, and its research, especially in Artificial Intelligence, being recognized by UNESCO as one of the most impactful globally, UNAM is known for its high quality research and educational level. All Mexican Nobel laureates are either alumni or faculty of UNAM. UNAM was founded, ...
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Selective Inverted Sink
The selective inverted sink or SIS is a device used by farmers to protect plants from frost, developed by Uruguayan Rafael Guarga in the late 1990s. The sink is actually a large fan housed in a chimney-like structure, and works by defeating surface temperature inversion. Cold air is denser than warm air, and will pool at ground level during calm weather. This lowers the surface temperature, even if the ambient temperature Colloquially, "room temperature" is a range of air temperatures that most people prefer for indoor settings. It feels comfortable to a person when they are wearing typical indoor clothing. Human comfort can extend beyond this range depending on ... is higher. Vents near the base of the chimney allow cold surface air to be pulled up through the chimney, creating a suction effect that draws warmer air down to surface level. The SIS is more efficient than typical ground-heaters, and is widely used to combat frost. ReferencesTo blow up or down? Inverted sink ...
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Farmer
A farmer is a person engaged in agriculture, raising living organisms for food or raw materials. The term usually applies to people who do some combination of raising field crops, orchards, vineyards, poultry, or other livestock. A farmer might own the farm land or might work as a laborer on land owned by others. In most developed economies, a "farmer" is usually a farm owner ( landowner), while employees of the farm are known as ''farm workers'' (or farmhands). However, in other older definitions a farmer was a person who promotes or improves the growth of plants, land or crops or raises animals (as livestock or fish) by labor and attention. Over half a billion farmers are smallholders, most of whom are in developing countries, and who economically support almost two billion people. Globally, women constitute more than 40% of agricultural employees. History Farming dates back as far as the Neolithic, being one of the defining characteristics of that era. By the Bronze Age, ...
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Frost
Frost is a thin layer of ice on a solid surface, which forms from water vapor in an above- freezing atmosphere coming in contact with a solid surface whose temperature is below freezing, and resulting in a phase change from water vapor (a gas) to ice (a solid) as the water vapor reaches the freezing point. In temperate climates, it most commonly appears on surfaces near the ground as fragile white crystals; in cold climates, it occurs in a greater variety of forms. The propagation of crystal formation occurs by the process of nucleation. The ice crystals of frost form as the result of fractal process development. The depth of frost crystals varies depending on the amount of time they have been accumulating, and the concentration of the water vapor (humidity). Frost crystals may be invisible (black), clear ( translucent), or white; if a mass of frost crystals scatters light in all directions, the coating of frost appears white. Types of frost include crystalline frost ( ...
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1940 Births
Year 194 (Roman numerals, CXCIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 ''Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus and Clodius Albinus, Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * Battle of Issus (194), Battle of Issus: Septimius Severus marches with his army (12 Roman legion, legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the Defensive wall, city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao ...
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Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ...
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University Of The Republic (Uruguay) Alumni
The University of the Republic ( es, Universidad de la República, sometimes ''UdelaR'') is Uruguay's oldest public university. It is by far the country's largest university, as well as the second largest public university in South America and the world's 57th largest by enrollment, with a student body of 137,757 undergraduate students in 2018 and 6,351 postgraduate students in 2012. It was founded on 18 July 1849 in Montevideo, where most of its buildings and facilities are still located. Its current rector is Rodrigo Arim. History The process of founding the country's public university began on 11 June 1833, when a law proposed by then-Senator Dámaso Antonio Larrañaga was passed. It called for the creation of nine academic departments; the President of the Republic would pass a decree formally creating the departments once the majority of them were in operation. In 1836 the House of General Studies was formed, housing the departments of Latin, philosophy, mathematics, th ...
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Academic Staff Of The University Of The Republic (Uruguay)
An academy ( Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary or tertiary higher learning (and generally also research or honorary membership). The name traces back to Plato's school of philosophy, founded approximately 385 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and skill, north of Athens, Greece. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive grove, hence the expression "the groves of Academe". In these gardens, the philosopher Plato conversed with followers. Plato developed his sessions into a method of teaching philosophy and in 387 BC, established what is known today as the Old Academy. By extension, ''academia'' has come to mean the accumulation, de ...
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