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Topic Review
Pavement Surface Types and Distress Assessment Indicators
Pavement or road surfaces can be categorized into four general classes, i.e., asphalt, concrete, gravel, and brick and block. Pavement condition is assessed by measuring several pavement characteristics such as roughness, surface skid resistance, pavement strength, deflection, and visual surface distresses.
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  • 29 Nov 2022
Topic Review
Capa Vehicle
A capacitor vehicle or capa vehicle is a traction vehicle that uses supercapacitors (also called ultracapacitors) to store electricity. (As of 2010), the best ultracapacitors can only store about 5% of the energy that lithium-ion rechargeable batteries can, limiting them to a couple of miles per charge. This makes them ineffective as a general energy storage medium for passenger vehicles. But ultracapacitors can charge much faster than batteries, so in vehicles such as buses that have to stop frequently at known points where charging facilities can be provided, energy storage based exclusively on ultracapacitors becomes viable
  • 591
  • 29 Nov 2022
Topic Review
Aero L-159 Alca
The Aero L-159 ALCA[nb 1] is a subsonic light combat aircraft and advanced trainer developed in the single-seat L-159A and two-seat L-159B versions respectively, produced in the Czech Republic by Aero Vodochody. In 2003, the Czech Air Force fleet of 72 L-159A aircraft was reduced to 24 due to budget constraints. After several years of storage, the government has re-sold most of the redundant aircraft to both military and civilian operators, namely the Iraqi Air Force and Draken International. The L-159 has seen active combat use by the Iraqi Air Force against ISIS. In Draken's service, the L-159 (colloquially known as "Honey Badger") has been employed as an aggressor aircraft. Since 2007, six L-159A aircraft have been rebuilt into T1 trainer derivatives. In 2017, Aero Vodochody unveiled a newly built L-159T1 for the Iraqi Air Force while the Czech Air Force is set to acquire L-159T2 two-seaters.
  • 3.2K
  • 29 Nov 2022
Biography
Nicholas H. Heck
Captain Nicholas H. Heck (1 September 1882 – 21 December 1953) was a career officer of the United States Coast and Geodetic Survey Corps. A leading geophysicist of his time, Heck made important contributions in the study of seismology and oceanography. He also revolutionized hydrographic surveying by developing the wire-drag surveying technique and introduced radio acoustic ranging into Coast
  • 387
  • 29 Nov 2022
Biography
Jason Reese
Jason Meredith Reese FREng[1] FRSE[2] FInstP FIMechE is a British engineering scientist, and Regius Professor of Engineering at the University of Edinburgh, UK.[3] His research is in multiscale flow systems in which the molecular or discrete nature of the fluid determines the overall fluid dynamics. A winner of the Philip Leverhulme Prize for Engineering (Leverhulme Trust), the Lord Kelvin Meda
  • 578
  • 29 Nov 2022
Topic Review
RAF Cardington
Royal Air Force Cardington or more simply RAF Cardington is a former Royal Air Force Royal Air Force station in Bedfordshire, England , with a long and varied history, particularly in relation to airships and balloons. Most of the former RAF station is in the parish of Eastcotts, as is the settlement of Shortstown.
  • 1.2K
  • 29 Nov 2022
Topic Review
Deep-Sea Smart Composites
To solve the global shortage of land and offshore resources, the development of deep-sea resources has become a popular topic. Deep-sea composites are widely used materials in abyssal resources extraction, and corresponding marine exploration vehicles and monitoring devices for deep-sea engineering. In the process of deep-sea resources extraction by DUVs and marine engineering, cracks and fractures or other types of damage can occur due to the fatigue and aging of materials in harsh abyssal environments. With the expansion of cracks and fractures, the composite material splits could lead to the failure of composite structures. Traditional damage detection methods are limited by outdated equipment, low intelligence and poor timeliness, making it difficult to directly detect defects. To avoid irreversible disasters caused by fatigue and aging, and to reduce manpower and financial costs required for periodic inspection, it is necessary to adopt deep-sea smart composites to meet the existing needs.
  • 513
  • 29 Nov 2022
Biography
Gene Haas
Eugene "Gene" Francis Haas (born November 12, 1952) is founder, president, and sole stockholder of Haas Automation, a CNC machine tool manufacturer. He also has a presence in motorsports, having founded NASCAR team Haas CNC Racing (now known as Stewart-Haas Racing) and the Formula One team, Haas F1 Team. Haas graduated from California State University Northridge in 1975 with a Bachelor of Sci
  • 531
  • 29 Nov 2022
Biography
Jeong H. Kim
Jeong Hun Kim (Korean: 김종훈; born August 13, 1960) is a South Korean-born American academic, businessman, and entrepreneur in the technology industry. He served as the President of Bell Labs from 2005 to 2013. Born in Seoul, South Korea, Jeong Kim is a product of a broken home. His parents divorced when he was very young, and he was raised by different relatives while his father went to
  • 646
  • 29 Nov 2022
Biography
Rory A. Cooper
Rory A. Cooper is an American bioengineer who currently serves as Distinguished Professor and FISA/PVA Chair of the Department of Rehabilitation Science and Technology and professor of Bioengineering, Physical Medicine and Rehabilitation, and Orthopedic Surgery at the University of Pittsburgh.[1][2][3] He is also Associate Dean for Inclusion in the School of Health and Rehabilitation Sciences.[4
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