Elizabeth Jean (Betty) O'Neil is an American computer scientist known for her highly cited work in databases, including C-Store, the LRU-K page replacement algorithm, the log-structured merge-tree, and her criticism of the ANSI SQL 92 isolation mechanism. She is a professor of computer science at the University of Massachusetts Boston.
O'Neil is a 1963 graduate of the Massachusetts Institute of Technology, majoring in applied mathematics. She completed a Ph.D. in applied mathematics at Harvard University in 1968. [1] Her dissertation was A quasi-linear theory for axially symmetric flows in a stratified rotating fluid. [2] After postdoctoral research at the Courant Institute of Mathematical Sciences of New York University, and short-term teaching positions at New York University and the Massachusetts Institute of Technology, she joined the faculty of the University of Massachusetts Boston in 1970. [1]
O'Neil is the author, with Patrick O'Neil, of the book Database: Principles, Programming, Performance (Morgan Kaufmann, 2nd ed., 2001).
Grigory Isaakovich Barenblatt was a Russian mathematician.
Richard Manning Karp is an American computer scientist and computational theorist at the University of California, Berkeley. He is most notable for his research in the theory of algorithms, for which he received a Turing Award in 1985, The Benjamin Franklin Medal in Computer and Cognitive Science in 2004, and the Kyoto Prize in 2008.
Cathleen Synge Morawetz was a Canadian mathematician who spent much of her career in the United States. Morawetz's research was mainly in the study of the partial differential equations governing fluid flow, particularly those of mixed type occurring in transonic flow. She was professor emerita at the Courant Institute of Mathematical Sciences at the New York University, where she had also served as director from 1984 to 1988. She was awarded the National Medal of Science in 1998.
Jule Gregory Charney was an American meteorologist who played an important role in developing numerical weather prediction and increasing understanding of the general circulation of the atmosphere by devising a series of increasingly sophisticated mathematical models of the atmosphere. His work was the driving force behind many national and international weather initiatives and programs.
Olga Aleksandrovna Ladyzhenskaya was a Russian mathematician who worked on partial differential equations, fluid dynamics, and the finite difference method for the Navier–Stokes equations. She received the Lomonosov Gold Medal in 2002. She is the author of more than two hundred scientific works, among which are six monographs.
In fluid dynamics, the Taylor–Couette flow consists of a viscous fluid confined in the gap between two rotating cylinders. For low angular velocities, measured by the Reynolds number Re, the flow is steady and purely azimuthal. This basic state is known as circular Couette flow, after Maurice Marie Alfred Couette, who used this experimental device as a means to measure viscosity. Sir Geoffrey Ingram Taylor investigated the stability of Couette flow in a ground-breaking paper. Taylor's paper became a cornerstone in the development of hydrodynamic stability theory and demonstrated that the no-slip condition, which was in dispute by the scientific community at the time, was the correct boundary condition for viscous flows at a solid boundary.
Kurt Otto Friedrichs was a noted German-American mathematician. He was the co-founder of the Courant Institute at New York University, and a recipient of the National Medal of Science.
Lloyd Nicholas Trefethen is an American mathematician, professor of numerical analysis and head of the Numerical Analysis Group at the Mathematical Institute, University of Oxford.
Rotordynamics, also known as rotor dynamics, is a specialized branch of applied mechanics concerned with the behavior and diagnosis of rotating structures. It is commonly used to analyze the behavior of structures ranging from jet engines and steam turbines to auto engines and computer disk storage. At its most basic level, rotor dynamics is concerned with one or more mechanical structures (rotors) supported by bearings and influenced by internal phenomena that rotate around a single axis. The supporting structure is called a stator. As the speed of rotation increases the amplitude of vibration often passes through a maximum that is called a critical speed. This amplitude is commonly excited by imbalance of the rotating structure; everyday examples include engine balance and tire balance. If the amplitude of vibration at these critical speeds is excessive, then catastrophic failure occurs. In addition to this, turbomachinery often develop instabilities which are related to the internal makeup of turbomachinery, and which must be corrected. This is the chief concern of engineers who design large rotors.
Thomas Lee Magnanti is an American engineer and Institute Professor and former Dean of the School of Engineering at the Massachusetts Institute of Technology.
Steven Alan Orszag was an American mathematician.
Gerald Beresford Whitham FRS was a British–born American applied mathematician and the Charles Lee Powell Professor of Applied Mathematics (Emeritus) of Applied & Computational Mathematics at the California Institute of Technology. He received his Ph.D. from the University of Manchester in 1953 under the direction of Sir James Lighthill. He is known for his work in fluid dynamics and waves.
Akiva Moiseevich Yaglom was a Soviet and Russian physicist, mathematician, statistician, and meteorologist. He was known for his contributions to the statistical theory of turbulence and theory of random processes. Yaglom spent most of his career in Russia working in various institutions, including the Institute of Theoretical Geophysics.
Andrea Louise Bertozzi is an American mathematician. Her research interests are in non-linear partial differential equations and applied mathematics.
Marsha J. Berger is an American computer scientist. Her areas of research include numerical analysis, computational fluid dynamics, and high-performance parallel computing. She is a Silver Professor of Computer Science and Mathematics in the Courant Institute of Mathematical Sciences of New York University.
Elaine Surick Oran is an American physical scientist and is considered a world authority on numerical methods for large-scale simulation of physical systems. She has pioneered computational technology to solve complex reactive flow problems, unifying concepts from science, mathematics, engineering, and computer science in a new methodology. An incredibly diverse range of phenomena can be modeled and better understood using her techniques for numerical simulation of fluid flows, ranging from the tightly grouped movements of fish in Earth's oceans to the explosions of far-flung supernovae in space. Her work has contributed significantly to the advancement of the engineering profession.
Harvey P. Greenspan is an applied mathematician and Professor emeritus at the Massachusetts Institute of Technology. He is notable for theoretical and experimental contributions in various subjects such as wave motion, oceanography, magneto-hydrodynamics, rotating fluids, bio-fluid dynamics, mixtures, centrifugal separation and multi-phase flows.
Hans Wilhelm Alt is a German mathematician, specializing in partial differential equations and their applications.
Harold Weitzner is an American applied mathematician and physicist whose primary research is plasma physics. He is Professor Emeritus of Mathematics at the Courant Institute of Mathematical Sciences and has served as Director of the Magneto-Fluid Dynamics Division at Courant since 1981, succeeding Harold Grad. He has published over 120 research articles on the topics of plasma physics, magnetohydrodynamics, fluid mechanics, fractional equations and kinetics, and chaos.
Peter George Baines is an Australian geophysicist. He is an honorary senior fellow at University of Melbourne and a Fellow of the Royal Society of Victoria.