|
Haimei Zheng
Haimei Zheng is a Chinese-American materials scientist who is a senior scientist in Materials Sciences Division at the Lawrence Berkeley National Laboratory. She is an adjunct professor in Department of Materials Science and Engineering at the University of California, Berkeley. Her research considers the nucleation, nanoscale materials transformations, and dynamic phenomena at solid-liquid interfaces, which she studies by developing the advanced ''in situ'' electron microscopy techniques. She is a Fellow of the Materials Research Society. Early life and education Zheng was born in China. She was an undergraduate student at Chongqing University and she got a master's degree at Tianjin University, where she majored both in materials science. She moved to the United States for graduate research and earned her doctorate degree at the University of Maryland, College Park. She was supervised by Ramamoorthy Ramesh and Lourdes Salamanca-Riba. Her Ph.D. research was on the growth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Center For Electron Microscopy
The National Center for Electron Microscopy (NCEM) is a U.S. Department of Energy national user facility at Lawrence Berkeley National Laboratory in Berkeley, California, for unclassified scientific research using advanced electron microscopy An electron microscope is a microscope that uses a beam of electrons as a source of illumination. It uses electron optics that are analogous to the glass lenses of an optical light microscope to control the electron beam, for instance focusing i .... In 2014, NCEM merged as a facility within the Molecular Foundry, also located at Berkeley Lab. The NCEM has two double-aberration corrected electron microscopes for atomic resolution imaging. History The National Center for Electron Microscopy (NCEM) was established in 1983 to explore and research the characterization of materials with state-of-the-art instrumentation and expertise. References External links Official National Center for Electron Microscopy website Lawrence Ber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lourdes Salamanca-Riba
Lourdes (, also , ; ) is a market town situated in the Pyrenees. It is part of the Hautes-Pyrénées department in the Occitanie region in southwestern France. Prior to the mid-19th century, the town was best known for its Château fort, a fortified castle that rises up from a rocky escarpment at its center. In 1858, Lourdes rose to prominence in France and abroad due to the Marian apparitions to the peasant girl Bernadette Soubirous (later canonized a saint by the Catholic Church for her virtuous life). Shortly thereafter, the city and its Sanctuary of Our Lady of Lourdes became among the world's most important sites for pilgrimage and religious tourism. History Antiquity The current municipal area of Lourdes was inhabited in prehistoric times. In Roman times, from the first century BC, it was an oppidum hill on the site of the present-day fortress, as shown by the numerous archaeological finds after the demolition of the parish of Saint-Pierre in the early twentieth centu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Missing (living People)
A year is a unit of time based on how long it takes the Earth to orbit the Sun. In scientific use, the tropical year (approximately 365 solar days, 5 hours, 48 minutes, 45 seconds) and the sidereal year (about 20 minutes longer) are more exact. The modern calendar year, as reckoned according to the Gregorian calendar, approximates the tropical year by using a system of leap years. The term 'year' is also used to indicate other periods of roughly similar duration, such as the lunar year (a roughly 354-day cycle of twelve of the Moon's phasessee lunar calendar), as well as periods loosely associated with the calendar or astronomical year, such as the seasonal year, the fiscal year, the academic year, etc. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by changes in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Purpose: Because living persons may suffer personal harm from inappropriate information, we should watch their articles carefully. By adding an article to this category, it marks them with a notice about sources whenever someone tries to edit them, to remind them of WP:BLP (biographies of living persons) policy that these articles must maintain a neutral point of view, maintain factual accuracy, and be properly sourced. Recent changes to these articles are listed on Special:RecentChangesLinked/Living people. Organization: This category should not be sub-categorized. Entries are generally sorted by family name In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full name of a person, although several give .... Maintenance: Individuals of advanced age (over 90), for whom there has been no new documentation in the last ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Energy
The United States Department of Energy (DOE) is an executive department of the U.S. federal government that oversees U.S. national energy policy and energy production, the research and development of nuclear power, the military's nuclear weapons program, nuclear reactor production for the United States Navy, energy-related research, and energy conservation. The DOE was created in 1977 in the aftermath of the 1973 oil crisis. It sponsors more physical science research than any other U.S. federal agency, the majority of which is conducted through its system of National Laboratories. The DOE also directs research in genomics, with the Human Genome Project originating from a DOE initiative. The department is headed by the secretary of energy, who reports directly to the president of the United States and is a member of the Cabinet. The current secretary of energy is Chris Wright, who has served in the position since February 2025. The department's headquarters are in sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryogenic Electron Microscopy
Cryogenic electron microscopy (cryo-EM) is a transmission electron microscopy technique applied to samples cooled to cryogenic temperatures. For biological specimens, the structure is preserved by embedding in an environment of vitreous ice. An aqueous sample solution is applied to a grid-mesh and plunge-frozen in liquid ethane or a mixture of liquid ethane and propane. While development of the technique began in the 1970s, recent advances in detector technology and software algorithms have allowed for the determination of biomolecular structures at near-atomic resolution. This has attracted wide attention to the approach as an alternative to X-ray crystallography or NMR spectroscopy in the structural biology field. In 2017, the Nobel Prize in Chemistry was awarded to Jacques Dubochet, Joachim Frank, and Richard Henderson "for developing cryo-electron microscopy for the high-resolution structure determination of biomolecules in solution." '' Nature Methods'' also named cryo- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Alivisatos
Armand Paul Alivisatos (born November 12, 1959) is a Greek and American chemist and academic administrator who is the President of the University of Chicago, 14th president of the University of Chicago since September 2021. He is a pioneer in nanomaterials development and an authority on the fabrication of nanocrystals and their use in biomedical and renewable energy applications. He was ranked fifth among the world's top 100 chemists for the period 2000–2010 in the list released by Thomson Reuters. On September 1, 2021, Alivisatos became the 14th president of the University of Chicago, where he also holds a faculty appointment as the John D. MacArthur Distinguished Service Professor in the Department of Chemistry, the Pritzker School of Molecular Engineering, and the College; and serves as the chair of the board of governors of Argonne National Laboratory and chair of the board of directors of Fermi Forward Discovery Group LLC, the operator of Fermilab, Fermi National Accelerat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulrich Dahmen
Ulrich () is a Germanic given name derived from Old High German ''Uodalrich'', ''Odalric''. It is composed of the elements '' uodal-'' meaning "heritage" and ''-rih'' meaning "king, ruler". Attested from the 8th century as the name of Alamannic nobility, the name is popularly given from the high medieval period in reference to Saint Ulrich of Augsburg (canonized 993). Ulrich is also a surname. It is most prevalent in Germany and has the highest density in Switzerland. This last name was found in the United States in the year 1727 when Christof Ulrich landed in Pennsylvania. Most Americans with the last name were concentrated in Pennsylvania, which was home to many German immigrant communities. Nowadays in the United States, the name is distributed largely in the Pennsylvania-Ohio region. History Documents record the Old High German name ''Oadalrich'' or ''Uodalrich'' from the later 8th century in Alamannia. The related name '' Adalric'' (Anglo-Saxon cognate '' Æthelric'') is atte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiferroic
Multiferroics are defined as materials that exhibit more than one of the primary ferroic properties in the same phase: * ferromagnetism – a magnetisation that is switchable by an applied magnetic field * ferroelectricity – an electric polarisation that is switchable by an applied electric field * ferroelasticity – a deformation that is switchable by an applied stress While ferroelectric, ferroelastics, and ferromagnetics are formally multiferroics, these days the term is usually used to describe the '' magnetoelectric multiferroics'' that are simultaneously ferromagnetic and ferroelectric. Sometimes the definition is expanded to include nonprimary order parameters, such as antiferromagnetism or ferrimagnetism. In addition, other types of primary order, such as ferroic arrangements of magnetoelectric multipoles of which ferrotoroidicity is an example, were proposed. Besides scientific interest in their physical properties, multiferroics have potential for applications as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramamoorthy Ramesh
Ramamoorthy Ramesh (born 1960) is an American materials scientist of Indian descent who has contributed to the synthesis, assembly and understanding of complex functional oxides. In particular, he has worked on the fundamental science and technology translation of ferroelectric perovskites, manganites with colossal magnetoresistance, and multiferroic oxides with potential benefits for modern information technologies. To date, Ramesh has >675 publications with >100,000 citations, resulting in an h-index >150. He was named Citation Laureate (Thomson Reuters) for his research on multiferroics (2014). He is currently on leave from Berkeley, serving as the Executive Vice President for Research at Rice University, where he is also a professor in the Department of Materials Science and Nanoengineering and the Department of Physics and Astronomy. Training and career Ramamoorthy Ramesh received a B.S. in Chemistry from Madras University (1980) and a B.E. in Metallurgy from the Indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawrence Berkeley National Laboratory
Lawrence Berkeley National Laboratory (LBNL, Berkeley Lab) is a Federally funded research and development centers, federally funded research and development center in the Berkeley Hills, hills of Berkeley, California, United States. Established in 1931 by the University of California (UC), the laboratory is sponsored by the United States Department of Energy and administered by the UC system. Ernest Lawrence, who won the Nobel prize for inventing the cyclotron, founded the lab and served as its director until his death in 1958. Located in the Berkeley Hills, the lab overlooks the campus of the University of California, Berkeley. Scientific research The mission of Berkeley Lab is to bring science solutions to the world. The research at Berkeley Lab has four main themes: discovery science, energy, earth systems, and the future of science. The Laboratory's 22 scientific divisions are organized within six areas of research: Computing Sciences, Physical Sciences, Earth and Environmenta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
