Nondestructive testing (NDT) is a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. The terms nondestructive examination (NDE), nondestructive inspection (NDI), and nondestructive evaluation (NDE) are also commonly used to describe this technology. Because NDT does not permanently alter the article being inspected, it is a highly valuable technique that can save both money and time in product evaluation, troubleshooting, and research. The six most frequently used NDT methods are eddy-current, magnetic-particle, liquid penetrant, radiographic, ultrasonic, and visual testing. NDT is commonly used in forensic engineering, mechanical engineering, petroleum engineering, electrical engineering, civil engineering, systems engineering, aeronautical engineering, medicine, and art. Innovations in the field of nondestructive testing have had a profound impact on medical imaging, including on echocardiography, medical ultrasonography, and digital radiography.
Sir Peter Mansfield was an English physicist who was awarded the 2003 Nobel Prize in Physiology or Medicine, shared with Paul Lauterbur, for discoveries concerning Magnetic Resonance Imaging (MRI). Mansfield was a professor at the University of Nottingham.
Michael James Duff FRS, FRSA is a British theoretical physicist and pioneering theorist of supergravity who is the Principal of the Faculty of Physical Sciences and Abdus Salam Chair of Theoretical Physics at Imperial College London.
William Daniel Phillips is an American physicist. He shared the Nobel Prize in Physics, in 1997, with Steven Chu and Claude Cohen-Tannoudji.
John Joseph Hopfield is an American scientist most widely known for his invention of an associative neural network in 1982. It is now more commonly known as the Hopfield network.
The Texas A&M Transportation Institute (TTI) in Bryan/College Station, Texas is the largest transportation research agency in the United States. Created in 1950, primarily in response to the needs of the Texas Highway Department, TTI has since broadened its focus to address all modes of transportation–highway, air, water, rail, pipeline, and automated/connected vehicles. TTI is a state agency and a member of the Texas A&M University System. TTI's cooperative relationship with the Texas Department of Transportation has helped the Institute develop and implement work for numerous other sponsors.
Neil Geoffrey Turok is a South African physicist. He is a director emeritus of the Perimeter Institute for Theoretical Physics since 2019. He specializes in mathematical physics and early-universe physics, including the cosmological constant and a cyclic model for the universe.
Sir Samuel Frederick Edwards FLSW FRS, "universally known as 'Sam'," was a Welsh physicist. The Sam Edwards Medal and Prize is named in his honour.
Yoseph Bar-Cohen is a physicist at the Jet Propulsion Laboratory who specializes in electroactive materials and ultrasonic nondestructive evaluation (NDE), and is responsible for the Nondestructive Evaluation and Advance Actuators (NDEAA) lab at JPL. Dr. Bar-Cohen is a fellow of the International Society for Optical Engineering (SPIE) and the American Society for Nondestructive Testing (ASNT).
Philip McCord Morse, was an American physicist, administrator and pioneer of operations research (OR) in World War II. He is considered to be the father of operations research in the U.S.
Arthur Taylor Winfree was a theoretical biologist at the University of Arizona. He was born in St. Petersburg, Florida, United States.
There are two natural isotopes of iridium (77Ir), and 34 radioisotopes, the most stable radioisotope being 192Ir with a half-life of 73.83 days, and many nuclear isomers, the most stable of which is 192m2Ir with a half-life of 241 years. All other isomers have half-lives under a year, most under a day.
The Ernest Orlando Lawrence Award was established in 1959 in honor of a scientist who helped elevate American physics to the status of world leader in the field.
Thermographic inspection refers to the nondestructive testing (NDT) of parts, materials or systems through the imaging of the temperature fields, gradients and/or patterns ("thermograms") at the object's surface. It is distinguished from medical thermography by the subjects being examined: thermographic inspection generally examines inanimate objects, while medical thermography generally examines living organisms. Generally, thermographic inspection is performed using an infrared sensor.
TeraView Limited, or TeraView, is a company that designs terahertz imaging and spectroscopy instruments and equipment for measurement and evaluation of pharmaceutical tablets, nanomaterials, ceramics and composites, integrated circuit chips and more.
Henry Crew was an American physicist and astronomer.
James Henry Williams Jr. is a mechanical engineer, consultant, civic commentator, and teacher of engineering. He is currently Professor of Applied Mechanics in the Mechanical Engineering Department at the Massachusetts Institute of Technology (MIT). He is regarded as one of the world's leading experts in the mechanics, design, fabrication, and nondestructive evaluation (NDE) of nonmetallic fiber reinforced composite materials and structures. He is also Professor of Writing and Humanistic Studies at MIT.
Paul Winfree serves as director of the Thomas A. Roe Institute for Economic Policy Studies and is also the Richard F. Aster Fellow at The Heritage Foundation. He is also the founder and president of N58 Policy Research. Winfree is also member of the J. William Fulbright Foreign Scholarship Board. He previously was Deputy Assistant to the President for Domestic policy, Deputy Director of the Domestic Policy Council, and Director of Budget Policy at the White House during the first year of the Trump administration.
Michael (Mike) Lowe FREng is a British mechanical engineer. Since 2019, he has been the Head of the Department of Mechanical Engineering at Imperial College London. He is a Professor in Non-Destructive Testing (NDT), with particular interests in structure-guided ultrasound, wave theory, wave scattering, materials characterisation, and analytical and numerical modelling.