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75-614: The team was sponsored by the Mecair company and the Italian maker of garage doors Ballan in 1993. The Italian electrical engineering company Gewiss took over as the main sponsor in 1994. Gewiss had previously sponsored the Bianchi cycling team from 1987 to 1989. In 1996 the second sponsor was taken by the Gewiss brand Playbus. Directeur sportifs with the team included Emanuele Bombini and Paolo Rosola . In

150-618: A degree in electrical engineering, electronic or electrical and electronic engineering. Practicing engineers may have professional certification and be members of a professional body or an international standards organization. These include the International Electrotechnical Commission (IEC), the National Society of Professional Engineers (NSPE), the Institute of Electrical and Electronics Engineers (IEEE) and

225-470: A mass-production basis, they opened the door for more compact devices. The first integrated circuits were the hybrid integrated circuit invented by Jack Kilby at Texas Instruments in 1958 and the monolithic integrated circuit chip invented by Robert Noyce at Fairchild Semiconductor in 1959. The MOSFET (metal–oxide–semiconductor field-effect transistor, or MOS transistor) was invented by Mohamed Atalla and Dawon Kahng at BTL in 1959. It

300-632: A variety of topics in electrical engineering . Initially such topics cover most, if not all, of the subdisciplines of electrical engineering. At some schools, the students can then choose to emphasize one or more subdisciplines towards the end of their courses of study. At many schools, electronic engineering is included as part of an electrical award, sometimes explicitly, such as a Bachelor of Engineering (Electrical and Electronic), but in others, electrical and electronic engineering are both considered to be sufficiently broad and complex that separate degrees are offered. Tour of Denmark Danmark Rundt

375-425: A compass needle; of William Sturgeon , who in 1825 invented the electromagnet ; of Joseph Henry and Edward Davy , who invented the electrical relay in 1835; of Georg Ohm , who in 1827 quantified the relationship between the electric current and potential difference in a conductor ; of Michael Faraday , the discoverer of electromagnetic induction in 1831; and of James Clerk Maxwell , who in 1873 published

450-509: A degree is usually four or five years and the completed degree may be designated as a Bachelor of Science in Electrical/Electronics Engineering Technology, Bachelor of Engineering , Bachelor of Science, Bachelor of Technology , or Bachelor of Applied Science , depending on the university. The bachelor's degree generally includes units covering physics , mathematics, computer science , project management , and

525-421: A device later named electrophorus that produced a static electric charge. By 1800 Alessandro Volta had developed the voltaic pile , a forerunner of the electric battery. In the 19th century, research into the subject started to intensify. Notable developments in this century include the work of Hans Christian Ørsted , who discovered in 1820 that an electric current produces a magnetic field that will deflect

600-643: A general electronic component. The most common microelectronic components are semiconductor transistors , although all main electronic components ( resistors , capacitors etc.) can be created at a microscopic level. Nanoelectronics is the further scaling of devices down to nanometer levels. Modern devices are already in the nanometer regime, with below 100 nm processing having been standard since around 2002. Microelectronic components are created by chemically fabricating wafers of semiconductors such as silicon (at higher frequencies, compound semiconductors like gallium arsenide and indium phosphide) to obtain

675-407: A large number—often millions—of tiny electrical components, mainly transistors , into a small chip around the size of a coin . This allowed for the powerful computers and other electronic devices we see today. Microelectronics engineering deals with the design and microfabrication of very small electronic circuit components for use in an integrated circuit or sometimes for use on their own as

750-454: A million spectators on the road. After no less than five second places overall, including twice before the race hiatus of 1989–1994, Rolf Sørensen finally secured overall victory in his home race in 2000. In 2004 it was won by Kurt Asle Arvesen , after his Team CSC teammate Jens Voigt let him win an intermediate sprint, so Arvesen finished 2 seconds ahead in the overall classification. In 2005 Ivan Basso of Team CSC , coming off

825-499: A profession in the later 19th century. Practitioners had created a global electric telegraph network, and the first professional electrical engineering institutions were founded in the UK and the US to support the new discipline. Francis Ronalds created an electric telegraph system in 1816 and documented his vision of how the world could be transformed by electricity. Over 50 years later, he joined

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900-433: A subject of scientific interest since at least the early 17th century. William Gilbert was a prominent early electrical scientist, and was the first to draw a clear distinction between magnetism and static electricity . He is credited with establishing the term "electricity". He also designed the versorium : a device that detects the presence of statically charged objects. In 1762 Swedish professor Johan Wilcke invented

975-491: A table of hematocrit levels of Gewiss riders that were taken from December 1994 to May 1995. This was before the UCI limit of a hematocrit level of 50% which came into effect in 1997. Bjarne Riis rode for the team at the time and his levels went from 41.1 to 56.3, Gotti from 40.7 to 57 and Berzin from 41.7 to 53. Ugrumov had the highest level at 60%. Riis immediately denied the validity of the figures. Riis's hematocrit level of 41.1%, in

1050-656: A test conducted on 14 January 1995, was a normal value for an adult male while six months later on 10 July 1995, several days after Riis wore the yellow jersey as leader of the general classification for the first time at the Tour de France , his level was 56.3%. Another doctor of the team, Dr. Gianni Mazzoni, was in a separate case, accused of promoting doping in sports. These are the published hematocrit variations (in percentage) of Gewiss riders in 1994 and 1995. Many well known and successful cyclists rode for Gewiss: Source: Electrical engineering Electrical engineering

1125-638: A unified theory of electricity and magnetism in his treatise Electricity and Magnetism . In 1782, Georges-Louis Le Sage developed and presented in Berlin probably the world's first form of electric telegraphy , using 24 different wires, one for each letter of the alphabet. This telegraph connected two rooms. It was an electrostatic telegraph that moved gold leaf through electrical conduction. In 1795, Francisco Salva Campillo proposed an electrostatic telegraph system. Between 1803 and 1804, he worked on electrical telegraphy, and in 1804, he presented his report at

1200-426: A variety of industries. Electronic engineering involves the design and testing of electronic circuits that use the properties of components such as resistors , capacitors , inductors , diodes , and transistors to achieve a particular functionality. The tuned circuit , which allows the user of a radio to filter out all but a single station, is just one example of such a circuit. Another example to research

1275-567: Is a Danish multi-day professional road cycling race. It is currently sponsored by the Danish national postal agency, PostNord , and the race is therefore also known as PostNord Danmark Rundt . The race is sometimes called the Tour of Denmark in English language media. The race has been on the UCI ProSeries calendar since 2021, after being cancelled in 2020. Traditionally, the race starts off on

1350-462: Is a pneumatic signal conditioner. Prior to the Second World War, the subject was commonly known as radio engineering and basically was restricted to aspects of communications and radar , commercial radio , and early television . Later, in post-war years, as consumer devices began to be developed, the field grew to include modern television, audio systems, computers, and microprocessors . In

1425-415: Is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity , electronics , and electromagnetism . It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph , the telephone, and electrical power generation, distribution, and use. Electrical engineering

1500-444: Is an engineering discipline that deals with the convergence of electrical and mechanical systems. Such combined systems are known as electromechanical systems and have widespread adoption. Examples include automated manufacturing systems , heating, ventilation and air-conditioning systems , and various subsystems of aircraft and automobiles . Electronic systems design is the subject within electrical engineering that deals with

1575-655: Is divided into a wide range of different fields, including computer engineering , systems engineering , power engineering , telecommunications , radio-frequency engineering , signal processing , instrumentation , photovoltaic cells , electronics , and optics and photonics . Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics , electromagnetics and waves, microwave engineering , nanotechnology , electrochemistry , renewable energies, mechatronics/control, and electrical materials science. Electrical engineers typically hold

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1650-798: Is still important in the design of many control systems . DSP processor ICs are found in many types of modern electronic devices, such as digital television sets , radios, hi-fi audio equipment, mobile phones, multimedia players , camcorders and digital cameras, automobile control systems, noise cancelling headphones, digital spectrum analyzers , missile guidance systems, radar systems, and telematics systems. In such products, DSP may be responsible for noise reduction , speech recognition or synthesis , encoding or decoding digital media, wirelessly transmitting or receiving data, triangulating positions using GPS , and other kinds of image processing , video processing , audio processing , and speech processing . Instrumentation engineering deals with

1725-461: Is their power consumption as this is closely related to their signal strength . Typically, if the power of the transmitted signal is insufficient once the signal arrives at the receiver's antenna(s), the information contained in the signal will be corrupted by noise , specifically static. Control engineering focuses on the modeling of a diverse range of dynamic systems and the design of controllers that will cause these systems to behave in

1800-567: Is very useful for energy transmission as well as for information transmission. These were also the first areas in which electrical engineering was developed. Today, electrical engineering has many subdisciplines, the most common of which are listed below. Although there are electrical engineers who focus exclusively on one of these subdisciplines, many deal with a combination of them. Sometimes, certain fields, such as electronic engineering and computer engineering , are considered disciplines in their own right. Power & Energy engineering deals with

1875-625: Is well known due to systematic doping that occurred with the team. The team doctor, Michele Ferrari was an assistant of Professor Francesco Conconi at the Biomedical Institute at the University of Ferrara in Italy. Conconi together with his assistants is said to have introduced erythropoietin (EPO) to the sport of cycling . On 11 January 1999 Danmarks Radio aired The Price of Silence in Denmark,

1950-458: The 1994 Giro d'Italia while Piotr Ugrumov came second overall in 1994 Tour de France . Vladislav Bobrik won the Giro di Lombardia in the late season for the team. In the following year, the team was not as dominant but still successful. Berzin came second at the 1995 Giro d'Italia behind Tony Rominger and ahead of his teammate Ugrumov. The team set the record speed of the team time trial at

2025-464: The 1995 Tour de France of 54.930 km/h. This speed stood for ten years until Lance Armstrong 's Discovery Channel Team broke it during the 2005 Tour de France . The Gewiss team beat Laurent Jalabert 's Team ONCE to second place and the defending champion Miguel Induráin 's Banesto to third place. Riis would wear the yellow jersey as leader of the general classification in that year's Tour before eventually finishing third overall. The team

2100-474: The 2005 Tour de France as the overall runner-up, totally dominated the race, and won overall as well as 4 out of 6 stages. Since the race was run at the same time as the UCI ProTour race Eneco Tour , only three UCI ProTour teams participated. In 2006 , the race was won by Fabian Cancellara of CSC ahead of Stuart O'Grady , also of CSC and in 2007 Kurt Asle Arvesen returned to win for the second time, being

2175-558: The Institution of Engineering and Technology (IET, formerly the IEE). Electrical engineers work in a very wide range of industries and the skills required are likewise variable. These range from circuit theory to the management skills of a project manager . The tools and equipment that an individual engineer may need are similarly variable, ranging from a simple voltmeter to sophisticated design and manufacturing software. Electricity has been

2250-780: The Z3 , the world's first fully functional and programmable computer using electromechanical parts. In 1943, Tommy Flowers designed and built the Colossus , the world's first fully functional, electronic, digital and programmable computer. In 1946, the ENIAC (Electronic Numerical Integrator and Computer) of John Presper Eckert and John Mauchly followed, beginning the computing era. The arithmetic performance of these machines allowed engineers to develop completely new technologies and achieve new objectives. In 1948, Claude Shannon published "A Mathematical Theory of Communication" which mathematically describes

2325-548: The compression , error detection and error correction of digitally sampled signals. Signal processing is a very mathematically oriented and intensive area forming the core of digital signal processing and it is rapidly expanding with new applications in every field of electrical engineering such as communications, control, radar, audio engineering , broadcast engineering , power electronics, and biomedical engineering as many already existing analog systems are replaced with their digital counterparts. Analog signal processing

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2400-654: The doubling of transistors on an IC chip every two years, predicted by Gordon Moore in 1965. Silicon-gate MOS technology was developed by Federico Faggin at Fairchild in 1968. Since then, the MOSFET has been the basic building block of modern electronics. The mass-production of silicon MOSFETs and MOS integrated circuit chips, along with continuous MOSFET scaling miniaturization at an exponential pace (as predicted by Moore's law ), has since led to revolutionary changes in technology, economy, culture and thinking. The Apollo program which culminated in landing astronauts on

2475-452: The generation , transmission , and distribution of electricity as well as the design of a range of related devices. These include transformers , electric generators , electric motors , high voltage engineering, and power electronics . In many regions of the world, governments maintain an electrical network called a power grid that connects a variety of generators together with users of their energy. Users purchase electrical energy from

2550-448: The transmission of information across a communication channel such as a coax cable , optical fiber or free space . Transmissions across free space require information to be encoded in a carrier signal to shift the information to a carrier frequency suitable for transmission; this is known as modulation . Popular analog modulation techniques include amplitude modulation and frequency modulation . The choice of modulation affects

2625-429: The 1850s had shown the relationship of different forms of electromagnetic radiation including the possibility of invisible airborne waves (later called "radio waves"). In his classic physics experiments of 1888, Heinrich Hertz proved Maxwell's theory by transmitting radio waves with a spark-gap transmitter , and detected them by using simple electrical devices. Other physicists experimented with these new waves and in

2700-550: The 1994 season with Giorgio Furlan winning Tirreno–Adriatico (and Berzin second overall) and Furlan winning Milan–San Remo . Berzin then won Liège–Bastogne–Liège which was followed by Argentin's win in La Flèche Wallonne . The win in the Fleche Wallonne was impressive because the team completely dominated the race with taking all podium places at the race with Argentin, Furlan and Berzin ahead of many greats of cycling at

2775-525: The Jutland peninsula and ends on the island of Zealand – on Frederiksberg Allé in Copenhagen. Since 2004, one of the stages has included the steep street Kiddesvej in the city of Vejle. It's this hilly stage and the time trial that usually determine who will win the general classification. The race was first run yearly from 1985 to 1988 and, after a break of 7 years, from 1995 onwards. It attracts approximately half

2850-633: The Moon with Apollo 11 in 1969 was enabled by NASA 's adoption of advances in semiconductor electronic technology , including MOSFETs in the Interplanetary Monitoring Platform (IMP) and silicon integrated circuit chips in the Apollo Guidance Computer (AGC). The development of MOS integrated circuit technology in the 1960s led to the invention of the microprocessor in the early 1970s. The first single-chip microprocessor

2925-569: The Royal Academy of Natural Sciences and Arts of Barcelona. Salva's electrolyte telegraph system was very innovative though it was greatly influenced by and based upon two discoveries made in Europe in 1800—Alessandro Volta's electric battery for generating an electric current and William Nicholson and Anthony Carlyle's electrolysis of water. Electrical telegraphy may be considered the first example of electrical engineering. Electrical engineering became

3000-549: The amplifier tube, called the triode . In 1920, Albert Hull developed the magnetron which would eventually lead to the development of the microwave oven in 1946 by Percy Spencer . In 1934, the British military began to make strides toward radar (which also uses the magnetron) under the direction of Dr Wimperis, culminating in the operation of the first radar station at Bawdsey in August 1936. In 1941, Konrad Zuse presented

3075-815: The applications of computer engineering. Photonics and optics deals with the generation, transmission, amplification, modulation, detection, and analysis of electromagnetic radiation . The application of optics deals with design of optical instruments such as lenses , microscopes , telescopes , and other equipment that uses the properties of electromagnetic radiation. Other prominent applications of optics include electro-optical sensors and measurement systems, lasers , fiber-optic communication systems, and optical disc systems (e.g. CD and DVD). Photonics builds heavily on optical technology, supplemented with modern developments such as optoelectronics (mostly involving semiconductors ), laser systems, optical amplifiers and novel materials (e.g. metamaterials ). Mechatronics

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3150-413: The competition was for riders under 23 years, in 1988 the bar was raised to 24 years, and in 2000 and later editions, it has been for riders born in or after (race year) – 25 years (i.e. in 2000 they had to be born in or after 1975). In addition to the five competitions above, in all editions except the 1985 and 1995 ones, a fighter competition was held. A complete list over overall winners by nation of

3225-413: The cost and performance of a system and these two factors must be balanced carefully by the engineer. Once the transmission characteristics of a system are determined, telecommunication engineers design the transmitters and receivers needed for such systems. These two are sometimes combined to form a two-way communication device known as a transceiver . A key consideration in the design of transmitters

3300-510: The curvature of the Earth. Marconi later transmitted the wireless signals across the Atlantic between Poldhu, Cornwall , and St. John's, Newfoundland , a distance of 2,100 miles (3,400 km). Millimetre wave communication was first investigated by Jagadish Chandra Bose during 1894–1896, when he reached an extremely high frequency of up to 60   GHz in his experiments. He also introduced

3375-493: The design of devices to measure physical quantities such as pressure , flow , and temperature. The design of such instruments requires a good understanding of physics that often extends beyond electromagnetic theory . For example, flight instruments measure variables such as wind speed and altitude to enable pilots the control of aircraft analytically. Similarly, thermocouples use the Peltier-Seebeck effect to measure

3450-561: The design of new hardware . Computer engineers may also work on a system's software. However, the design of complex software systems is often the domain of software engineering, which is usually considered a separate discipline. Desktop computers represent a tiny fraction of the devices a computer engineer might work on, as computer-like architectures are now found in a range of embedded devices including video game consoles and DVD players . Computer engineers are involved in many hardware and software aspects of computing. Robots are one of

3525-577: The desired manner. To implement such controllers, electronics control engineers may use electronic circuits , digital signal processors , microcontrollers , and programmable logic controllers (PLCs). Control engineering has a wide range of applications from the flight and propulsion systems of commercial airliners to the cruise control present in many modern automobiles . It also plays an important role in industrial automation . Control engineers often use feedback when designing control systems . For example, in an automobile with cruise control

3600-420: The desired transport of electronic charge and control of current. The field of microelectronics involves a significant amount of chemistry and material science and requires the electronic engineer working in the field to have a very good working knowledge of the effects of quantum mechanics . Signal processing deals with the analysis and manipulation of signals . Signals can be either analog , in which case

3675-544: The documentary told of how during the Tour of Denmark on 4 August 1995 journalists made a doping find in a hotel room where the soigneur of Gewiss Paolo Ganzerli had slept the night before. Six riders of the team had also stayed in the hotel on that night of 3 August 1995. The journalists found a Gewiss bag filled with 12 used and bloodied needles, an ampule which according to its label contained Recomon 5000 (EPO) and three blank ampules of which subsequent tests revealed contained EPO. Further revelations about systematic doping on

3750-556: The first Department of Electrical Engineering in the United States. In the same year, University College London founded the first chair of electrical engineering in Great Britain. Professor Mendell P. Weinbach at University of Missouri established the electrical engineering department in 1886. Afterwards, universities and institutes of technology gradually started to offer electrical engineering programs to their students all over

3825-455: The first in history to do so, and giving Team CSC its 4th consecutive win. In 2008 Jakob Fuglsang from Team Designa Køkken became the first Dane to win since 2002. In 2009 he became the first rider to win the race two years in a row before going on to win for a third consecutive year in 2010 . Fuglsang was succeeded by Australian rider Simon Gerrans in 2011 , Lieuwe Westra in 2012 and Wilco Kelderman in 2013 . The 2014 Danmark Rundt

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3900-589: The first of a three part series that detailed doping in cycling of the Team ONCE and Gewiss teams. The programme alleged that EPO was used by the Gewiss–Ballan team in 1995. The journalists had come into possession of papers of hematocrit levels of riders of the team which showed large fluctuations from normal levels to those indicating doping. These figures would later be published in L’Equipe (discussed below). In addition

3975-501: The four years of its existence, the team achieved great successes. The team produced winners of the Giro d'Italia – Evgeni Berzin and Ivan Gotti as well as top classic specialists Giorgio Furlan and Nicola Minali . Former World Champion Moreno Argentin finished his career with the team on a high note with stage wins at the 1993 Giro d'Italia as well as the impressive win at La Flèche Wallonne in 1994. The team dominated cycling during

4050-583: The future it is hoped the devices will help build tiny implantable medical devices and improve optical communication . In aerospace engineering and robotics , an example is the most recent electric propulsion and ion propulsion. Electrical engineers typically possess an academic degree with a major in electrical engineering, electronics engineering , electrical engineering technology , or electrical and electronic engineering. The same fundamental principles are taught in all programs, though emphasis may vary according to title. The length of study for such

4125-533: The grid, avoiding the costly exercise of having to generate their own. Power engineers may work on the design and maintenance of the power grid as well as the power systems that connect to it. Such systems are called on-grid power systems and may supply the grid with additional power, draw power from the grid, or do both. Power engineers may also work on systems that do not connect to the grid, called off-grid power systems, which in some cases are preferable to on-grid systems. Telecommunications engineering focuses on

4200-453: The international standardization of the units volt , ampere , coulomb , ohm , farad , and henry . This was achieved at an international conference in Chicago in 1893. The publication of these standards formed the basis of future advances in standardization in various industries, and in many countries, the definitions were immediately recognized in relevant legislation. During these years,

4275-446: The mid-to-late 1950s, the term radio engineering gradually gave way to the name electronic engineering . Before the invention of the integrated circuit in 1959, electronic circuits were constructed from discrete components that could be manipulated by humans. These discrete circuits consumed much space and power and were limited in speed, although they are still common in some applications. By contrast, integrated circuits packed

4350-511: The multi-disciplinary design issues of complex electrical and mechanical systems. The term mechatronics is typically used to refer to macroscopic systems but futurists have predicted the emergence of very small electromechanical devices. Already, such small devices, known as microelectromechanical systems (MEMS), are used in automobiles to tell airbags when to deploy, in digital projectors to create sharper images, and in inkjet printers to create nozzles for high definition printing. In

4425-519: The new Society of Telegraph Engineers (soon to be renamed the Institution of Electrical Engineers ) where he was regarded by other members as the first of their cohort. By the end of the 19th century, the world had been forever changed by the rapid communication made possible by the engineering development of land-lines, submarine cables , and, from about 1890, wireless telegraphy . Practical applications and advances in such fields created an increasing need for standardized units of measure . They led to

4500-514: The passage of information with uncertainty ( electrical noise ). The first working transistor was a point-contact transistor invented by John Bardeen and Walter Houser Brattain while working under William Shockley at the Bell Telephone Laboratories (BTL) in 1947. They then invented the bipolar junction transistor in 1948. While early junction transistors were relatively bulky devices that were difficult to manufacture on

4575-401: The process developed devices for transmitting and detecting them. In 1895, Guglielmo Marconi began work on a way to adapt the known methods of transmitting and detecting these "Hertzian waves" into a purpose-built commercial wireless telegraphic system. Early on, he sent wireless signals over a distance of one and a half miles. In December 1901, he sent wireless waves that were not affected by

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4650-425: The signal varies continuously according to the information, or digital , in which case the signal varies according to a series of discrete values representing the information. For analog signals, signal processing may involve the amplification and filtering of audio signals for audio equipment or the modulation and demodulation of signals for telecommunications. For digital signals, signal processing may involve

4725-411: The study of electricity was largely considered to be a subfield of physics since early electrical technology was considered electromechanical in nature. The Technische Universität Darmstadt founded the world's first department of electrical engineering in 1882 and introduced the first-degree course in electrical engineering in 1883. The first electrical engineering degree program in the United States

4800-481: The team were published in the Italian newspaper La Repubblica and the French sports paper L'Équipe in 1999. These were based on published writing from journalist Eugenio Capodacqua from the Italian daily newspaper La Repubblica . Capodacqua published blood values ( hematocrit levels) from Gewiss riders and results of an investigation into the team and its doctor Michele Ferrari . On 12 March 1999 L'Equipe published

4875-444: The temperature difference between two points. Often instrumentation is not used by itself, but instead as the sensors of larger electrical systems. For example, a thermocouple might be used to help ensure a furnace's temperature remains constant. For this reason, instrumentation engineering is often viewed as the counterpart of control. Computer engineering deals with the design of computers and computer systems . This may involve

4950-478: The theoretical basis of alternating current engineering. The spread in the use of AC set off in the United States what has been called the war of the currents between a George Westinghouse backed AC system and a Thomas Edison backed DC power system, with AC being adopted as the overall standard. During the development of radio , many scientists and inventors contributed to radio technology and electronics. The mathematical work of James Clerk Maxwell during

5025-558: The time including Claudio Chiappucci , Franco Ballerini , Davide Cassani and Gianni Bugno . After the Fleche Wallonne of 1994, French sports newspaper L'Équipe interviewed the team's doctor Michele Ferrari . Journalist Jean-Michel Rouet asked Ferrari if his riders used EPO to which Ferrari denied prescribing the drug but said he would not find it wrong, saying that it was not dangerous and compared taking EPO to drinking orange juice. This remark generated controversy and Ferrari later stepped down as team doctor. Afterwards Berzin won

5100-424: The use of semiconductor junctions to detect radio waves, when he patented the radio crystal detector in 1901. In 1897, Karl Ferdinand Braun introduced the cathode-ray tube as part of an oscilloscope , a crucial enabling technology for electronic television . John Fleming invented the first radio tube, the diode , in 1904. Two years later, Robert von Lieben and Lee De Forest independently developed

5175-557: The use of transformers , developed rapidly in the 1880s and 1890s with transformer designs by Károly Zipernowsky , Ottó Bláthy and Miksa Déri (later called ZBD transformers), Lucien Gaulard , John Dixon Gibbs and William Stanley Jr. Practical AC motor designs including induction motors were independently invented by Galileo Ferraris and Nikola Tesla and further developed into a practical three-phase form by Mikhail Dolivo-Dobrovolsky and Charles Eugene Lancelot Brown . Charles Steinmetz and Oliver Heaviside contributed to

5250-485: The vehicle's speed is continuously monitored and fed back to the system which adjusts the motor's power output accordingly. Where there is regular feedback, control theory can be used to determine how the system responds to such feedback. Control engineers also work in robotics to design autonomous systems using control algorithms which interpret sensory feedback to control actuators that move robots such as autonomous vehicles , autonomous drones and others used in

5325-553: The world. During these decades the use of electrical engineering increased dramatically. In 1882, Thomas Edison switched on the world's first large-scale electric power network that provided 110 volts— direct current (DC)—to 59 customers on Manhattan Island in New York City. In 1884, Sir Charles Parsons invented the steam turbine allowing for more efficient electric power generation. Alternating current , with its ability to transmit power more efficiently over long distances via

5400-484: Was started at Massachusetts Institute of Technology (MIT) in the physics department under Professor Charles Cross, though it was Cornell University to produce the world's first electrical engineering graduates in 1885. The first course in electrical engineering was taught in 1883 in Cornell's Sibley College of Mechanical Engineering and Mechanic Arts . In about 1885, Cornell President Andrew Dickson White established

5475-454: Was the Intel 4004 , released in 1971. The Intel 4004 was designed and realized by Federico Faggin at Intel with his silicon-gate MOS technology, along with Intel's Marcian Hoff and Stanley Mazor and Busicom's Masatoshi Shima. The microprocessor led to the development of microcomputers and personal computers, and the microcomputer revolution . One of the properties of electricity is that it

5550-474: Was the first truly compact transistor that could be miniaturised and mass-produced for a wide range of uses. It revolutionized the electronics industry , becoming the most widely used electronic device in the world. The MOSFET made it possible to build high-density integrated circuit chips. The earliest experimental MOS IC chip to be fabricated was built by Fred Heiman and Steven Hofstein at RCA Laboratories in 1962. MOS technology enabled Moore's law ,

5625-573: Was won by Danish rider Michael Valgren of the Tinkoff–Saxo team. The 2015 edition was planned to start on 4 August 2014, with the first stage scheduled to begin in Struer and end in Holstebro . It ended on 8 August. The 2015 Danmark Rundt was won by Danish rider Christopher Juul-Jensen of the Tinkoff–Saxo team. Various secondary competitions have been held over the years. *In 1985, 1986 and 1987

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