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Thomas H. Lee (power Engineer)
Thomas H. Lee (; May 11, 1923 – February 4, 2001) was a Chinese-American electrical engineer and writer. He worked for General Electric for 30 years, where he developed the first practical vacuum interrupter and the silicon rectifier in the 1960s. In the 1980s he served as the Philip Sporn Professor of Energy Processing at the Massachusetts Institute of Technology and co-chaired the MIT Sloan School's Management of Technology program. He was elected a member of the National Academy of Engineering in 1975 and a foreign member of the Chinese Academy of Engineering in 2000. He was an IEEE Fellow and received the IEEE Haraden Pratt Award in 1983. Early life and education Lee was born May 11, 1923 in Shanghai, Republic of China (ROC). He graduated from National Chiao Tung University (now Shanghai Jiao Tong University) in 1946 with a B.S. in mechanical engineering. While in college, he won the doubles gold medal in the Pan-Asia Table Tennis Championship. He enlisted in the Repub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shanghai
Shanghai (; , , Standard Mandarin pronunciation: ) is one of the four direct-administered municipalities of the People's Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flowing through it. With a population of 24.89 million as of 2021, Shanghai is the most populous urban area in China with 39,300,000 inhabitants living in the Shanghai metropolitan area, the second most populous city proper in the world (after Chongqing) and the only city in East Asia with a GDP greater than its corresponding capital. Shanghai ranks second among the administrative divisions of Mainland China in human development index (after Beijing). As of 2018, the Greater Shanghai metropolitan area was estimated to produce a gross metropolitan product ( nominal) of nearly 9.1 trillion RMB ($1.33 trillion), exceeding that of Mexico with GDP of $1.22 trillion, the 15th largest in the world. Shanghai is one of the world's major centers for f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Republic Of China (1912–1949)
The Republic of China (ROC), between 1912 and 1949, was a sovereign state recognised as the official designation of China when it was based on Mainland China, prior to the relocation of its central government to Taiwan as a result of the Chinese Civil War. At a population of 541 million in 1949, it was the world's most populous country. Covering , it consisted of 35 provinces, 1 special administrative region, 2 regions, 12 special municipalities, 14 leagues, and 4 special banners. The People's Republic of China (PRC), which rules mainland China today, considers ROC as a country that ceased to exist since 1949; thus, the history of ROC before 1949 is often referred to as Republican Era () of China. The ROC, now based in Taiwan, today considers itself a continuation of the country, thus calling the period of its mainland governance as the Mainland Period () of the Republic of China in Taiwan. The Republic was declared on 1 January 1912 after the Xinhai Revolution, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray Stata
Raymond Stuart Stata (born 1934) is an American entrepreneur, engineer, and investor. Early life and education Stata was born on November 12, 1934 in the small farming community of Oxford, Pennsylvania to Rhoda Pearl Buchanan and Raymond Stanford Stata, a self-employed electrical contractor. In high school, Ray worked as an apprentice for his father. Ray's mother was a factory worker. Ray's sister, Joan Stata, was five years older and worked as a nurse in Wilmington, Delaware. In the first grade, Stata attended a one-room school with one teacher serving eight grades. His parents moved to the outskirts of Baltimore to work at an aircraft factory during WWII. Ray attended Oxford High School in Oxford, Pennsylvania. After high school, Stata earned Bachelor of Science and Master's degrees from Massachusetts Institute of Technology (MIT). Stata married Maria in June, 1962. The two reside in the Boston area, where they raised their son Raymie (born 1968) and daughter Nicole. Raymie g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alex D'Arbeloff
Alexander Vladimir d'Arbeloff (December 21, 1927 – July 8, 2008) was the Georgian-American co-founder of Teradyne, a multibillion-dollar Boston, Massachusetts-based manufacturer of automatic test equipment (ATE). Early life He was born to a Georgian noble Vladimir d'Arbeloff, from Kutaisi, and German-Russian Baroness Catherine T. (Tiepolt) d'Arbeloff. Career After graduating in 1949 with an SB in management from the MIT Sloan School of Management, where he became a member of the Sigma Chi fraternity, he and fellow MIT alumnus Nick DeWolf founded and built Teradyne into one of the largest players in the global ATE market as integrated circuits became increasingly important to every aspect of modern technology. Upon his retirement from Teradyne in 2000, he was succeeded by George Chamillard. D'Arbeloff was later a director of Lotus Development Corporation and a director of the Whitehead Institute Whitehead Institute for Biomedical Research is a non-profit research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vienna
en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST = CEST , utc_offset_DST = +2 , blank_name = Vehicle registration , blank_info = W , blank1_name = GDP , blank1_info = € 96.5 billion (2020) , blank2_name = GDP per capita , blank2_info = € 50,400 (2020) , blank_name_sec1 = HDI (2019) , blank_info_sec1 = 0.947 · 1st of 9 , blank3_name = Seats in the Federal Council , blank3_info = , blank_name_sec2 = GeoTLD , blank_info_sec2 = .wien , website = , footnotes = , image_blank_emblem = Wien logo.svg , blank_emblem_size = Vienna ( ; german: Wien ; ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Pennsylvania
The University of Pennsylvania (also known as Penn or UPenn) is a private research university in Philadelphia. It is the fourth-oldest institution of higher education in the United States and is ranked among the highest-regarded universities by numerous organizations and scholars. While the university dates its founding to 1740, it was created by Benjamin Franklin and other Philadelphia citizens in 1749. It is a member of the Ivy League. The university has four undergraduate schools as well as twelve graduate and professional schools. Schools enrolling undergraduates include the College of Arts and Sciences, the School of Engineering and Applied Science, the Wharton School, and the School of Nursing. Among its highly ranked graduate schools are its law school, whose first professor wrote the first draft of the United States Constitution, its medical school, the first in North America, and Wharton, the first collegiate business school. Penn's endowment is US$20.7 billion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adjunct Professor
An adjunct professor is a type of academic appointment in higher education who does not work at the establishment full-time. The terms of this appointment and the job security of the tenure vary in different parts of the world, however the general definition is agreed upon. The term "Adjuncting" is a way of referring to a bona-fide part-time faculty member who has worked in an adjunct position for an institution of higher education. Terminology They may also be called an adjunct lecturer, adjunct instructor, or adjunct faculty. Collectively, they may be referred to as contingent academic labor. The rank of sessional lecturer in Canadian universities is similar to the US concept. North America In the United States, an adjunct is, in most cases, a non- tenure-track faculty member. However, it can also be a scholar or teacher whose primary employer is not the school or department with which they have adjunct status. Adjunct professors make up the majority of instructors in hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-voltage Direct Current
A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. Most HVDC links use voltages between 100 kV and 800 kV. However, a 1,100 kV link in China was completed in 2019 over a distance of with a power capacity of 12 GW. With this dimension, intercontinental connections become possible which could help to deal with the fluctuations of wind power and photovoltaics. HVDC allows power transmission between AC transmission systems that are not synchronized. Since the power flow through an HVDC link can be controlled independently of the phase angle between source and load, it can stabilize a network against disturbances due to rapid changes in power. HVDC also allows the transfer of power between grid systems running at different frequencies, such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury-arc Rectifier
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result mercury-arc valves, when used as intended, are far more robust and durable and can carry much higher currents than most other types of gas discharge tube. Some examples have been in continuous service, rectifying 50 ampere currents for decades. Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bismuth
Bismuth is a chemical element with the symbol Bi and atomic number 83. It is a post-transition metal and one of the pnictogens, with chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs naturally, and its sulfide and oxide forms are important commercial ores. The free element is 86% as dense as lead. It is a brittle metal with a silvery-white color when freshly produced. Surface oxidation generally gives samples of the metal a somewhat rosy cast. Further oxidation under heat can give bismuth a vividly iridescent appearance due to thin-film interference. Bismuth is both the most diamagnetic element and one of the least thermally conductive metals known. Bismuth was long considered the element with the highest atomic mass whose nuclei do not spontaneously decay. However, in 2003 it was discovered to be extremely weakly radioactive. The metal's only primordial isotope, bismuth-209, experiences alpha decay at such a mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Communist Revolution
The Chinese Communist Revolution, officially known as the Chinese People's War of Liberation in the People's Republic of China (PRC) and also known as the National Protection War against the Communist Rebellion in the Republic of China (ROC), was a period of social and political revolution in China that culminated in the establishment of the People's Republic of China in 1949. For the preceding century, China had faced escalating social, economic, and political problems as a result of Western imperialism and the decline of the Qing Dynasty. Cyclical famines and an oppressive landlord system kept the large mass of rural peasantry poor and politically disenfranchised. The Chinese Communist Party (CCP) was formed in 1921 by young urban intellectuals inspired by European socialist ideas and the success of the Bolshevik Revolution in Russia. The CCP originally allied itself with the nationalist Kuomintang party against the warlords and foreign imperialism, but the Shanghai Mass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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