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Lin Jiaqiao
Chia-Chiao Lin (; 7 July 1916 – 13 January 2013) was a Chinese-born American applied mathematician and Institute Professor at the Massachusetts Institute of Technology. Lin made major contributions to the theory of hydrodynamic stability, turbulent flow, mathematics, and astrophysics. Biography Lin was born in Beijing with ancestral roots in Fuzhou. In 1937 Lin graduated from the department of physics, National Tsinghua University in Beijing. After graduation he was a teaching assistant in the Tsinghua University physics department. In 1939 Lin won a Boxer Indemnity Scholarship and was initially supported to study in the United Kingdom. However, due to World War II, Lin and several others were sent to North America by ship. Unluckily, Lin's ship was stopped in Kobe, Japan, and all students had to return to China. In 1940, Lin finally reached Canada and studied at the University of Toronto from which he earned his M.Sc. In 1941. Lin continued his studies in the Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peking
} Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 million residents. It has an administrative area of , the third in the country after Guangzhou and Shanghai. It is located in Northern China, and is governed as a municipality under the direct administration of the State Council with 16 urban, suburban, and rural districts.Figures based on 2006 statistics published in 2007 National Statistical Yearbook of China and available online at archive. Retrieved 21 April 2009. Beijing is mostly surrounded by Hebei Province with the exception of neighboring Tianjin to the southeast; together, the three divisions form the Jingjinji megalopolis and the national capital region of China. Beijing is a global city and one of the world's leading centres for culture, diplomacy, politics, finance, bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timoshenko Medal
The Timoshenko Medal is an award given annually by the American Society of Mechanical Engineers (ASME) to an individual "in recognition of distinguished contributions to the field of applied mechanics." The Timoshenko Medal, widely regarded as the highest international award in the field of applied mechanics, was established in 1957 in honor of Stephen Timoshenko, world-renowned authority in the field. The Medal "commemorates his contributions as author and teacher." The actual award is a bronze medal and honorarium. The first award was given in 1957 to Stephen Prokofyevich Timoshenko. Nomination procedure The Timoshenko Medal Committee consists of the five recent Timoshenko Medalists, the five members of the executive committee of the ASME International Applied Mechanics Division (AMD), and the five recent past chairs of the AMD. See the list of currenmembers of the Committee Upon receiving recommendations from the international community of applied mechanics, the Committee n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boxer Indemnity Scholarship
The Boxer Indemnity Scholarship Program () was a scholarship program for Chinese students to be educated in the United States, funded by the . In 1908, the U.S. Congress passed a bill to return to China the excess of Boxer Indemnity, amounting to over 17 million dollars. Despite the fierce controversies over returning the excess payment, President Theodore Roosevelt's administration decided to establish the Boxer Indemnity Scholarship Program to educate Chinese. President Roosevelt recognized this program as a chance for "American-directed reform in China" that could potentially improve US-China relations, bridging Chinese and American culture, and promoting the US's international image. Instead of copying European imperialism and using military means to reap a short-term financial gain, Roosevelt established the program to insure peace and trade in China in the "most satisfactory and subtle of all ways", while helping the United States gain respect and take a leadership position ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teaching Assistant
A teaching assistant or teacher's aide (TA) or education assistant (EA) or team teacher (TT) is an individual who assists a teacher with instructional responsibilities. TAs include ''graduate teaching assistants'' (GTAs), who are graduate school, graduate students; ''undergraduate teaching assistants'' (UTAs), who are undergraduate students; ''secondary school TAs'', who are either high school students or adults; and ''elementary school TAs'', who are adults (also known as ''paraprofessional educators'' or ''teacher's aides''). By definition, TAs assist with classes, but many graduate students serve as the sole instructor for one or more classes each semester as a teaching fellow or graduate student instructor, although in some states, such as Florida, they are called "teaching assistants". Graduate and adult TAs generally have a fixed salary determined by each contract period (usually a semester or an academic year); however, undergraduates and high school students are sometimes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Tsinghua University
National Tsing Hua University (NTHU; ) is a public research university in Hsinchu City, Taiwan. National Tsing Hua University was first founded in Beijing. After the Chinese Civil War, the then-president of the university, Mei Yiqi, and other major academics fled to Taiwan with the retreating Nationalist government. In 1956, they reinstalled National Tsing Hua University in Hsinchu, Taiwan, which has since remained independent and distinct from Tsinghua University in Beijing. National Tsing Hua University is one of the six national research universities in Taiwan, and it is consistently ranked among the top three best universities in Taiwan in world university rankings. In the 2022 QS World University Rankings, it is ranked within the top 200 universities in the world and the top 50 universities in Asia. The university is part of a leading research and innovation cluster in Taiwan, along with nearby National Yang Ming Chiao Tung University, National Space Organization, Nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuzhou
Fuzhou (; , Fuzhounese: Hokchew, ''Hók-ciŭ''), alternately romanized as Foochow, is the capital and one of the largest cities in Fujian province, China. Along with the many counties of Ningde, those of Fuzhou are considered to constitute the Mindong (lit. Eastern Fujian) linguistic and cultural area. Fuzhou lies on the north (left) bank of the estuary of Fujian's largest river, the Min River. All along its northern border lies Ningde, and Ningde's Gutian County lies upriver. Its population was 7,115,370 inhabitants as of the 2010 census, of whom 4,408,076 inhabitants are urban representing around 61.95%, while rural population is at 2,707,294 representing around 38.05%. As of 31 December 2018, the total population was estimated at 7,740,000 whom 4,665,000 lived in the built-up (''or metro'') area made of 5 urban districts plus Minhou County. In 2015, Fuzhou was ranked as the 10th fastest growing metropolitan area in the world by Brookings Institution. Fuzhou is listed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophysics
Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline said, Astrophysics "seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–''what'' they are, rather than ''where'' they are." Among the subjects studied are the Sun, other stars, galaxies, extrasolar planets, the interstellar medium and the cosmic microwave background. Emissions from these objects are examined across all parts of the electromagnetic spectrum, and the properties examined include luminosity, density, temperature, and chemical composition. Because astrophysics is a very broad subject, ''astrophysicists'' apply concepts and methods from many disciplines of physics, including classical mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics, and atomic and m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbulent Flow
In fluid dynamics, turbulence or turbulent flow is fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to a laminar flow, which occurs when a fluid flows in parallel layers, with no disruption between those layers. Turbulence is commonly observed in everyday phenomena such as surf, fast flowing rivers, billowing storm clouds, or smoke from a chimney, and most fluid flows occurring in nature or created in engineering applications are turbulent. Turbulence is caused by excessive kinetic energy in parts of a fluid flow, which overcomes the damping effect of the fluid's viscosity. For this reason turbulence is commonly realized in low viscosity fluids. In general terms, in turbulent flow, unsteady vortices appear of many sizes which interact with each other, consequently drag due to friction effects increases. This increases the energy needed to pump fluid through a pipe. The onset of turbulence can be predicted by the dimensionless Reyn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrodynamic Stability
In fluid dynamics, hydrodynamic stability is the field which analyses the stability and the onset of instability of fluid flows. The study of hydrodynamic stability aims to find out if a given flow is stable or unstable, and if so, how these instabilities will cause the development of turbulence.See Drazin (2002), ''Introduction to hydrodynamic stability'' The foundations of hydrodynamic stability, both theoretical and experimental, were laid most notably by Helmholtz, Kelvin, Rayleigh and Reynolds during the nineteenth century. These foundations have given many useful tools to study hydrodynamic stability. These include Reynolds number, the Euler equations, and the Navier–Stokes equations. When studying flow stability it is useful to understand more simplistic systems, e.g. incompressible and inviscid fluids which can then be developed further onto more complex flows. Since the 1980s, more computational methods are being used to model and analyse the more complex flows. Stable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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