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Junqiao Wu
Junqiao Wu is a Chancellor's professor and Department Chair of materials science at the University of California, Berkeley. Wu's materials science research focuses on semiconductors, electronic materials and thermal energy transport. Wu's research in semiconductors has led to major discoveries in the field, such as indium gallium nitride alloys have bandgaps spanning the entire near infrared to ultraviolet spectrum, electrons in vanadium dioxide conduct energy without conducting heat, a temperature adaptive radiative coating that automatically switches thermal emissivity, as well as a range of applications in solar cells, infrared imaging, photonics, and thermoelectrics. He received a BS degree from Fudan University, a MS degree from Peking University Peking University (PKU; ) is a public research university in Beijing, China. The university is funded by the Ministry of Education. Peking University was established as the Imperial University of Peking in 1898 when it receive ...
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University Of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant university and the founding campus of the University of California system. Its fourteen colleges and schools offer over 350 degree programs and enroll some 31,800 undergraduate and 13,200 graduate students. Berkeley ranks among the world's top universities. A founding member of the Association of American Universities, Berkeley hosts many leading research institutes dedicated to science, engineering, and mathematics. The university founded and maintains close relationships with three national laboratories at Berkeley, Livermore and Los Alamos, and has played a prominent role in many scientific advances, from the Manhattan Project and the discovery of 16 chemical elements to breakthroughs in computer science and genomics. Berkeley i ...
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Thermal Energy
The term "thermal energy" is used loosely in various contexts in physics and engineering. It can refer to several different well-defined physical concepts. These include the internal energy or enthalpy of a body of matter and radiation; heat, defined as a type of energy transfer (as is thermodynamic work); and the characteristic energy of a degree of freedom, k_T, in a system that is described in terms of its microscopic particulate constituents (where T denotes temperature and k_ denotes the Boltzmann constant). Relation to heat and internal energy In thermodynamics, heat is energy transferred to or from a thermodynamic system by mechanisms other than thermodynamic work or transfer of matter, such as conduction, radiation, and friction. Heat refers to a quantity transferred between systems, not to a property of any one system, or "contained" within it. On the other hand, internal energy and enthalpy are properties of a single system. Heat and work depend on the way in wh ...
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Semiconductor
A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. Its conducting properties may be altered in useful ways by introducing impurities ("doping") into the crystal structure. When two differently doped regions exist in the same crystal, a semiconductor junction is created. The behavior of charge carriers, which include electrons, ions, and electron holes, at these junctions is the basis of diodes, transistors, and most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called "metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second-most common semiconductor and is used in laser diodes, solar cells, microwave-frequency integrated circuits, and others. Silicon is a critical element for ...
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Vanadium(IV) Oxide
Vanadium(IV) oxide or vanadium dioxide is an inorganic compound with the formula VO2. It is a dark blue solid. Vanadium(IV) dioxide is amphoteric, dissolving in non-oxidising acids to give the blue vanadyl ion, Osup>2+ and in alkali to give the brown 4O9sup>2− ion, or at high pH O4sup>4−. VO2 has a phase transition very close to room temperature (~). Electrical resistivity, opacity, etc, can change up several orders. Owing to these properties, it has been used in surface coating, sensors, and imaging. Potential applications include use in memory devices, phase-change switches, passive radiative cooling applications, such as smart windows and roofs, that cool or warm depending on temperature, aerospace communication systems and neuromorphic computing. Properties Structure At temperatures below Tc = , has a monoclinic (space group P21/c) crystal structure. Above Tc, the structure is tetragonal, like rutile . In the monoclinic phase, the V4+ ions form pairs along the c ax ...
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Fudan University
Fudan University () is a national public research university in Shanghai, China. Fudan is a member of the C9 League, Project 985, Project 211, and the Double First Class University identified by the Ministry of Education of China. It is also a member of Universitas 21, Washington University's McDonnell International Scholars Academy, and the Association of Pacific Rim Universities, BRICS Universities League, Association of East Asian Research Universities, and Council on Business & Society. Fudan is a collegiate university with five colleges – Zhide (), Tengfei (), Keqing (), Renzhong (), and Xide (). It is now composed of four campuses in Shanghai – Handan (), Fenglin (), Zhangjiang (), and Jiangwan () – which share the same central administration. Fudan has 17 hospitals affiliated. As of 2022, Fudan University is ranked 3rd in China, 7th in Asia and 31st globally according to the QS Rankings. Fudan's notable alumni include Chen Yinke, Chen Wangdao, Chu C ...
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Peking University
Peking University (PKU; ) is a public research university in Beijing, China. The university is funded by the Ministry of Education. Peking University was established as the Imperial University of Peking in 1898 when it received its royal charter by the Guangxu Emperor. A successor of the older '' Guozijian'' Imperial College, the university's romanized name 'Peking' retains the older transliteration of 'Beijing' that has been superseded in most other contexts. Perennially ranked as one of the top academic institutions in China and the world; as of 2021 Peking University was ranked 16th globally and 1st in the Asia-Pacific & emerging countries by Times Higher Education, while as of 2022 it was ranked 12th globally and 1st in Asia by QS University Rankings. Throughout its history, Peking University has had an important role "at the center of major intellectual movements" in China. Abolished of its status as a royal institution after the fall of the Qing dynasty and the Xinhai ...
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Hongkun Park
Hongkun Park (born 1967 in Seoul) is Mark Hyman Jr. Professor of Chemistry and Professor of Physics at Harvard University. He received his BS in chemistry at Seoul National University in 1990, and his PhD in physical chemistry at Stanford University in 1996 under Richard Zare. From 1996 to 1999 he was a postdoctoral fellow at Lawrence Berkeley National Laboratory under A. Paul Alivisatos and Paul McEuen. His current research focuses on optoelectronics and plasmonics using nanostructures, nano-bio interfacing, and neuro-electronic devices. Work *Professional appointments **1999–2002 Assistant Professor of Chemistry, Harvard University **2003. 1 Associate Professor of Chemistry, Harvard University **2003. 7 John L. Loeb Associate Professor of the Natural Sciences, Harvard University **2004. 1 Full Professor of Chemistry and of Physics, Harvard University *Affiliations **Professor of Chemistry and of Physics, Harvard University **Associate Member, Broad Institute **Affiliat ...
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Harvard University
Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States and one of the most prestigious and highly ranked universities in the world. The university is composed of ten academic faculties plus Harvard Radcliffe Institute. The Faculty of Arts and Sciences offers study in a wide range of undergraduate and graduate academic disciplines, and other faculties offer only graduate degrees, including professional degrees. Harvard has three main campuses: the Cambridge campus centered on Harvard Yard; an adjoining campus immediately across Charles River in the Allston neighborhood of Boston; and the medical campus in Boston's Longwood Medical Area. Harvard's endowment is valued at $50.9 billion, making it the wealthiest academic institution in the world. Endo ...
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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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Year Of Birth Missing (living People)
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar yea ...
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American Materials Scientists
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * ...
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