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Aeronautics is the science or art involved with the study, design, and manufacturing of air flight–capable machines, and the techniques of operating aircraft and rockets within the atmosphere. The British Royal Aeronautical Society identifies the aspects of "aeronautical Art, Science and Engineering" and "The profession of Aeronautics ."
Harry Nyquist was a Swedish electronic engineer who made important contributions to communication theory.
Jay Wright Forrester was a pioneering American computer engineer and systems scientist. He is credited with being one of the inventors of magnetic core memory, the predominant form of random-access computer memory during the most explosive years of digital computer development. It was part of a family of related technologies which bridged the gap between vacuum tubes and semiconductors by exploiting the magnetic properties of materials to perform switching and amplification.
Acoustical engineering is the branch of engineering dealing with sound and vibration. It includes the application of acoustics, the science of sound and vibration, in technology. Acoustical engineers are typically concerned with the design, analysis and control of sound.
Quantum 1/f noise is an intrinsic and fundamental part of quantum mechanics. Fighter pilots, photographers, and scientists all appreciate the higher quality of images and signals resulting from the consideration of quantum 1/f noise. Engineers have battled unwanted 1/f noise since 1925, giving it poetic names due to its mysterious nature. The Quantum 1/f noise theory was developed about 50 years later, describing the nature of 1/f noise, allowing it the be explained and calculated via straightforward engineering formulas. It allows for the low-noise optimization of materials, devices and systems of most high-technology applications of modern industry and science. The theory includes the conventional and coherent quantum 1/f effects (Q1/fE). Both effects are combined in a general engineering formula, and present in Q1/f noise, which is itself most of fundamental 1/f noise. The latter is defined as the result of the simultaneous presence of nonlinearity and a certain type of homogeneity in a system, and can be quantum or classical.
Leo Leroy Beranek was an American acoustics expert, former MIT professor, and a founder and former president of Bolt, Beranek and Newman. He authored Acoustics, considered a classic textbook in this field, and its updated and extended version published in 2012 under the title Acoustics: Sound Fields and Transducers. He was also an expert in the design and evaluation of concert halls and opera houses, and authored the classic textbook Music, Acoustics, and Architecture, revised and extended in 2004 under the title Concert Halls and Opera Houses: Music, Acoustics, and Architecture.
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John "Shôn" Eirwyn Ffowcs Williams, is Emeritus Rank Professor of Engineering at the University of Cambridge and a former Master of Emmanuel College, Cambridge (1996–2002). He may be best known for his contributions to Aeroacoustics, in particular for his work on Concorde. Together with one of his students, David Hawkings, he introduced the far-field integration method in computational aeroacoustics based on Lighthill's acoustic analogy, known as the Ffowcs Williams-Hawkings analogy.
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Acoustic quieting is the process of making machinery quieter by damping vibrations to prevent them from reaching the observer. Machinery vibrates, causing sound waves in air, hydroacoustic waves in water, and mechanical stresses in solid matter. Quieting is achieved by absorbing the vibrational energy or minimizing the source of the vibration. It may also be redirected away from the observer.
Cyril Manton Harris was Professor Emeritus of Architecture and Charles Batchelor Professor Emeritus of Electrical Engineering at Columbia University. He received his B.S. in mathematics and his M.S. in physics from UCLA, and his Ph.D. in physics from Massachusetts Institute of Technology (MIT), where he specialized in acoustics.
Gordon G. Grose was an engineer at the McDonnell-Douglas Corporation. He won the Wright Brothers Medal in 1974 with Michael J. Wendl, J. L. Porter, and Ralph Pruitt for a paper discussing future aircraft designs that integrate fly-by-wire controls with engine inlets/nozzles and advanced pilot displays.
V. Ralph Pruitt was an engineer at McDonnell Douglas who won the Wright Brothers Medal in 1974 with Michael J. Wendl, Gordon G. Grose, and J. L. Porter for a paper discussing future aircraft designs that integrate fly-by-wire controls with engine inlets/nozzles and advanced pilot displays.
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Manohar Lal Munjal is an Indian acoustical engineer, honorary professor, and INSA senior scientist at the Facility for Research in Technical Acoustics (FRITA) of the Indian Institute of Science. He is known for his studies on aeroacoustics and finite wave analysis of exhaust systems. He is an elected fellow of all the three major Indian science academies viz. Indian Academy of Sciences, Indian National Science Academy, National Academy of Sciences, India as well as the Indian National Academy of Engineering. He has published three books viz. Noise and Vibration Control, Acoustics of Ducts and Mufflers With Application to Exhaust and Ventilation System Design, and IUTAM Symposium on Designing for Quietness and has contributed chapters to books edited by himself and others. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Engineering Sciences in 1986.
Ma Dayou or Dah-You Maa was a Chinese acoustical physicist, specializing in various aspects of acoustics, especially sound generation, transmission and absorption. Academician of Chinese Academy of Sciences (CAS), Ma was a research professor at Institute of Acoustics of CAS; Chairman of Chinese National Acoustics Standardization Technical Committee; and Editor-in-Chief of Chinese Journal of Acoustics.
References
- ↑ Gregory, J. (1980) Who's Who in Engineering, 4th ed., American Association of Engineering Societies.
- ↑ Hayden, R.E. (1973) Fundamental Aspects of Noise Reduction From Powered Lift Devices, Society of Automotive Engineers paper number 730376.
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