4,646 articles
Rakesh Agrawal (chemical engineer)
Rakesh Agrawal is an American chemical engineer at Purdue University who received the U.S. National Medal of Technology and Innovation for energy-efficient gas liquefaction and separation.
Ralf Riedel
Ralf Riedel is a German materials scientist and Professor (Emeritus) at TU Darmstadt, known for the polymer-derived ceramics route and a 1996 Nature paper on a silicoboron carbonitride ceramic stable to 2,000 °C.
Ralph Bown
Ralph Bown (1891–1971) was an American electrical engineer who led AT&T's transatlantic radio telephone research, became research director at Bell Telephone Laboratories, and won the IRE Medal of Honor in 1949.
Ralph E. Fadum
Ralph E. Fadum (1912–2000) was an American civil engineer and pioneer in soil mechanics who served as dean of engineering at North Carolina State University.
Ralph Hartley
Ralph Hartley (Ralph Vinton Lyon Hartley) was an American electronics researcher at Bell Telephone Laboratories who invented the Hartley oscillator and, in 1928, an early measure of information.
Ralph Kimball
Ralph Kimball, American data warehouse pioneer, author of The Data Warehouse Toolkit (1996), founder of Red Brick Systems and the Kimball Group, who formalized and popularized dimensional modeling and the star schema; his bottom-up method is usually contrasted with Bill Inmon's top-down approach.
Ralph Krupke
Ralph Krupke is a German nanoscientist, professor of molecular nanostructures at TU Darmstadt since 2011, best known for the 2003 dielectrophoretic separation of metallic from semiconducting carbon nanotubes.
Ralph Merkle
Ralph Merkle, born 1952 in Berkeley, California, is an American computer scientist who independently invented public-key cryptography in 1974 and created the Merkle tree data structure.
Ralph Modjeski
Ralph Modjeski, born Rudolf Modrzejewski, was a Polish-born American civil engineer, one of the pre-eminent American bridge designers, who worked in truss, cantilever, and suspension construction.
Ralph Rossetti
Ralph Rossetti was a researcher at Bell Laboratories in Murray Hill, New Jersey, first author of the 1983 quantum size effect paper cited in the 2023 Nobel Prize background.
Ralph S. Gens
Ralph S. Gens was an American electric power transmission engineer who led Bonneville Power Administration's 500 kV grid and HVDC introduction, elected to the NAE in 1983.
Ralph T. Yang
Ralph T. Yang (1942–2025) was a Chinese-born American chemical engineer at the University of Michigan, known for inventing zeolite and metal-organic framework adsorbents for fuel desulfurization and carbon dioxide capture.
Ram Rajagopal
Ram Rajagopal is a Stanford associate professor of civil and environmental engineering who directs the Stanford Sustainable Systems Lab, working on sensing, data analytics, and stochastic control for integrating renewables into power grids.
Ramalingam Chellappa
Ramalingam Chellappa, known as Rama Chellappa, is a computer vision researcher and Bloomberg Distinguished Professor at Johns Hopkins, known for face and gait recognition and a National Academy of Engineering member.
Ramamoorthy Ramesh
Ramamoorthy Ramesh, also published as R. Ramesh, is an Indian-born American materials physicist at UC Berkeley known for solving ferroelectric fatigue and electric-field control of magnetism.
Raman I. Sujith
Raman I. Sujith, born 1967, is an Indian aerospace engineer and Institute Professor at IIT Madras known for applying dynamical systems theory to thermoacoustic instability.
Ramesh Raskar
Ramesh Raskar is an Indian-born computer scientist and MIT Media Lab professor who directs the Camera Culture group, won the 2016 Lemelson-MIT Prize, and is known for femto-photography.
Ramón Iribarren Cavanilles
Ramón Iribarren Cavanilles (1900–1967) was a Spanish civil engineer who founded modern breakwater design, publishing the first rubble-mound stability formula in 1938; the Iribarren number is named for him.
Randal E. Bryant
Randal E. Bryant, also known as Randal Bryant, is an American computer scientist at Carnegie Mellon University best known for ordered binary decision diagrams that enabled symbolic model checking.
Randall W. Poston
Randall W. Poston is an American structural engineer elected to the National Academy of Engineering in 2017 and a founding principal of Pivot Engineers in Austin, Texas.
Randy Pausch
Randy Pausch (Randolph Frederick Pausch) was an American computer scientist at Carnegie Mellon University who created the Alice programming environment and delivered the 2007 "Last Lecture."
Ranjan Singh
Ranjan Singh is a terahertz photonics researcher and Professor of Electrical Engineering at the University of Notre Dame, known for on-chip topological beamforming for 6G wireless.
Rao R. Tummala
Rao R. Tummala is an electrical and materials engineer who spent 25 years at IBM developing multichip packaging, then founded Georgia Tech's Packaging Research Center in 1993.
Rao Y. Surampalli
Rao Y. Surampalli is an American environmental engineer who spent 29 years at the U.S. EPA and was elected to the National Academy of Engineering in 2026.
Raphael C. Lee
Raphael C. Lee is an American surgeon and biomedical engineer at the University of Chicago whose research established repairing damaged cell membranes with amphiphilic copolymers.
Rashid Bashir
Rashid Bashir is a bioengineer working in BioMEMS, biosensors, and bionanotechnology, and the 15th dean of the Grainger College of Engineering at the University of Illinois Urbana-Champaign since 2018.
Ravi Ramamoorthi
Ravi Ramamoorthi is an American computer scientist in computer graphics and vision, a UC San Diego professor known for the signal-processing theory of light reflection.
Ravi Sethi
Ravi Sethi is a computer scientist known for the Sethi–Ullman algorithm and for co-authoring the compilers textbook Compilers: Principles, Techniques, and Tools, the "dragon book."
Ravi Shankar Prasher
Ravi Shankar Prasher is an American mechanical engineer who works on nanoscale heat transport and thermal management of electronics, and is Chief Technology Officer of Bloom Energy.
Ravi V. Bellamkonda
Ravi V. Bellamkonda is a biomedical engineer known for neural interfaces and the tumor monorail device that lures brain tumor cells out of the brain; he became Ohio State's 18th president in 2026.