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Biography
Ellison Onizuka
Ellison Shoji Onizuka (鬼塚 承次, Onizuka Shōji, June 24, 1946 – January 28, 1986) was an American astronaut from Kealakekua, Hawaii, who successfully flew into space with the Space Shuttle Discovery on STS-51-C. He died in the destruction of the Space Shuttle Challenger, on which he was serving as Mission Specialist for mission STS-51-L. He was the first Asian American and the first per
  • 572
  • 22 Nov 2022
Biography
Elmer William Engstrom
Elmer William Engstrom (August 25, 1901 – October 30, 1984) was an American electrical engineer and corporate executive prominent for his role in the development of television. Engstrom was born in Minneapolis, Minnesota in 1901 as son of Emil Engstrom, a power plant engineer, and Anna (Nelson) Engstrom. After attending the Mechanical Arte High School in Saint Paul, Minnesota, he obtained
  • 813
  • 15 Nov 2022
Biography
Elzy Burroughs
Elzy Burroughs (1771/77–1825) was an American stonemason, engineer, lighthouse builder and keeper. Elzy Burroughs was born and raised in Stafford County, Virginia. Elzy Burroughs' family leased and operated a sandstone quarry in the Aquia Creek area of Stafford County. Known as Aquia sandstone, material from quarries in this area was utilized in the construction of Mount Vernon, the United St
  • 373
  • 13 Dec 2022
Topic Review
EM-2 Rifle
The EM-2, also known as Rifle No.9 Mk1 or Janson rifle, was an experimental United Kingdom assault rifle. It was briefly adopted by British forces in 1951, but the decision was overturned very shortly thereafter by Winston Churchill's incoming government in an effort to secure NATO standardisation of small arms and ammunition. An innovative weapon with the compact bullpup layout and an optical sight, it used one of the early intermediate cartridges (a concept introduced by the Germans with the 7.92×33mm Kurz) as a result of combat experience and German advances in weapons design during World War II. It used the experimental, intermediate powered, but highly efficient .280 British round, which was designed to replace the venerable .303 round and Lee–Enfield rifle variants which had served since before the turn of the 20th century. The United States claimed the .280 British round was too weak for use in rifles and machine guns, and instead favored the much more powerful 7.62×51mm NATO round. As the EM-2 could not be easily adapted to the longer and more powerful round, it faded from use. However, the bullpup layout for a British service rifle was finally adopted some years later in form of the SA80 assault rifle, the EM-2's spiritual successor, which remains in service today.
  • 2.1K
  • 18 Nov 2022
Topic Review
Embedded Machine Learning
Embedded machine learning (EML) can be applied in the areas of accurate computer vision schemes, reliable speech recognition, innovative healthcare, robotics, and more. However, there exists a critical drawback in the efficient implementation of ML algorithms targeting embedded applications. Machine learning algorithms are generally computationally and memory intensive, making them unsuitable for resource-constrained environments such as embedded and mobile devices. In order to efficiently implement these compute and memory-intensive algorithms within the embedded and mobile computing space, innovative optimization techniques are required at the algorithm and hardware levels. 
  • 918
  • 01 Nov 2021
Topic Review
Embedded Sensors with 3D Printing Technology
Embedded sensors (ESs) are used in smart materials to enable continuous and permanent measurements of their structural integrity, while sensing technology involves developing sensors, sensory systems, or smart materials that monitor a wide range of properties of materials. Incorporating 3D-printed sensors into hosting structures has grown in popularity because of improved assembly processes, reduced system complexity, and lower fabrication costs. 3D-printed sensors can be embedded into structures and attached to surfaces through two methods: attaching to surfaces or embedding in 3D-printed sensors.
  • 788
  • 11 Jun 2024
Topic Review
Embraer KC-390
The Embraer KC-390 is a medium-size, twin-engine jet-powered military transport aircraft under development by Brazil ian aerospace manufacturer Embraer, able to perform aerial refuelling and to transport cargo and troops. It is the heaviest aircraft that the company has made to date, and will be able to transport up to 26 tonnes (29 tons) of cargo, including wheeled armoured fighting vehicles.
  • 1.6K
  • 31 Oct 2022
Topic Review
Embraer Legacy 500
The Embraer Legacy 500/450 (EMB-550/EMB-545) are Brazilian mid-size business jets launched by Embraer in April 2008, the first of their size with a flat-floor stand-up cabin and fly-by-wire. The longer 500, which typically carries 4 passengers over 3,125 nmi (5,790 km) with room for up to 12, first flew on November 27, 2012, and was certified on August 12, 2014. The shorter 450 first flew on December 28, 2013, was certified on August 11, 2015, carries 4 passengers over 2,900 nmi (5,370 km) and can accommodate up to 9.
  • 664
  • 06 Dec 2022
Topic Review
Emergency Communication Networks
Emergency communication refers to the communication means and methods needed for the extensive use of various communication resources to support rescues, including emergency rescues, and the necessary communication in the case of natural or manufactured emergencies. Because of the characteristics of disasters, making effective use of limited resources to provide the best communication services is a key problem. Unlike the traditional communication network, the emergency communication network is a complex network, and enables the implementation of emergency rescue activities and provides the primary conditions for the realization of emergency rescue functions. Its network structure has a significant impact on rescue efficiency. In different emergency situations, the demand for emergency communication is different, and the technical means used are different. Emergency communication mainly has the following characteristics: uncertainty of time and place; uncertainty of capacity demand; high degree of timeliness of the emergency communication; complexity of the environment; uncertainty of the degree of damage to the communication network itself; and diversification of information.
  • 1.1K
  • 24 Mar 2023
Topic Review
Emerging Applications of 6G
Emerging technologies continue to grow across diverse fields and facilitate a variety of services that benefit all kinds of end users. The suitability of indoor wireless networks in delivering 6G applications depends on the QoS requirements of the applications. 
  • 269
  • 25 May 2023
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