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Biography
Robert Plonsey
Robert Plonsey (July 17, 1924 – March 14, 2015) was the Pfizer-Pratt University Professor Emeritus of Biomedical Engineering at Duke University. He is noted for his work on bioelectricity.[1] Plonsey was born in New York City in 1924. He received the B.E.E. degree in electrical engineering from the Cooper Union School of Engineering in New York in 1943, and the M.E.E degree from New York Un
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  • 26 Dec 2022
Biography
Walter Riedel
Walter J H "Papa" Riedel ("Riedel I") was a German engineer who was the head of the Design Office of the Army Research Centre Peenemünde and the chief designer of the A4 (V-2) ballistic rocket.[1][2] The crater Riedel on the Moon was co-named for him and the German rocket pioneer Klaus Riedel. Employed by the Heylandt Company from 27 February 1928, in December 1929, Riedel was assigned respo
  • 515
  • 26 Dec 2022
Biography
Brian Malouf
Brian Malouf (born September 8, 1955) is a multi-platinum United States producer, engineer, and mixer who has worked with acts such as Michael Jackson, Queen, Madonna, Pearl Jam, Stevie Wonder, Dave Matthews Band, Tokio Hotel, Wolfmother, and All Time Low. Also serving as an executive at several major record labels over the years, his work has amassed a total of 53 gold, platinum, and double pla
  • 365
  • 26 Dec 2022
Biography
Grigory Gurevich
Grigory Gurevich is a painter, sculptor, graphic artist, photographer, illustrator, bookmaker, mime and inventor. Originally from Leningrad (Saint Petersburg), Russia, he now resides in New Jersey. The son of an architect, Grigory Gurevich was born in 1938 December 26 in Leningrad (Saint Petersburg), Russia.[1] At the beginning of World War II, he and a small group of children were evacuated
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  • 26 Dec 2022
Biography
George Keller
George Keller (December 15, 1842 – July 7, 1935), was an American architect and engineer. He enjoyed a diverse and successful career, and was sought for his designs of bridges, houses, monuments, and various commercial and public buildings. Keller's most famous projects, however, are the Soldiers and Sailors Memorial Arch in Hartford, Connecticut, and the James A. Garfield Memorial in Clevelan
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  • 26 Dec 2022
Topic Review
Gearbox Technologies for Tidal Energy Harvesting
Gearboxes are widely used in automobile, aerospace, energy, and process industries and are considered indispensable. Tidal flows always have very low speeds that rarely exceed 5 m/s. Lower tidal speeds result in lower turbine rotation speeds. Therefore, if conventional generators are used to produce electricity, gearboxes are necessary to achieve higher rotor speeds. 
  • 1.4K
  • 26 Dec 2022
Topic Review
Applications of Ultra-High-Performance Fiber-Reinforced Concrete (UHP-FRC)
UHPC is a cement based composite used to increase the life of new and existing structures. This new compound can replace concrete in harsh regions. After decades of research and manufacture, a range of commercial UHPC compositions are now accessible internationally to address demand for high-quality construction materials. UHPC provides substantial improvements over regular concrete, however its use is limited by design regulations and high prices. A detailed research of UHPC's durability qualities is needed to guide testing requirements and techniques and expand its practical usage. This study aims to promote UHPC research and applications.  
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  • 26 Dec 2022
Topic Review
Retrofitting and Strengthening of Structures
In civil engineering since antiquity, structural repair has been a very particular problem. Throughout history, human-constructed buildings have been destroyed due to time, natural disasters, and even building mistakes. In this respect, the field of engineering related to structural reconstruction and recovery seeks to identify methods and techniques to accomplish this important task. The pace of the degradation of concrete buildings throughout the world is frightening. It has now been verified that even if the structural design complies with all particular building code criteria such as concrete quality, cover, and so on, there is still an acceptable high risk of concrete degradation and reinforcing corrosion. Steel corrosion has been identified as the most severe cause of reinforced concrete degradation, capable of causing fractures, spalling the concrete cover, reducing the effective c/s area of the reinforcement, and ultimately leading to collapse. In order to repair and rehabilitate other buildings, this study sought to compile the main ideas, methods, and technologies used by these influential engineers. In fact, this report contains case studies on functional restoration. The document further addresses various types of building, such as pre-stressing, post-tensioning, deployment, and pre-stressing.
  • 2.6K
  • 24 Dec 2022
Topic Review
Ionic Liquids for CO2 Capture
Ionic Liquids (ILs) are the molten salts with a melting point lower than 100 °C and behave as a liquid at room temperature. ILs properties can be altered by the careful selection of the anion and cation. ILs have bulky organic cations with low molecular symmetry and small organic/inorganic anions that are in their molten form in their pure states under ambient conditions. Global warming is one of the major problems in the developing world, and one of the major causes of global warming is the generation of carbon dioxide (CO2) because of the burning of fossil fuels. Burning fossil fuels to meet the energy demand of households and industries is unavoidable. The current commercial and experimental techniques used for capturing and storing CO2 have serious operational and environmental constraints. The amine-based absorption technique for CO2 capture has a low absorption and desorption ratio, and the volatile and corrosive nature of the solvent further complicates the situation. To overcome all of these problems, researchers have used ionic liquids (ILs) and deep eutectic solvents (DESs) as a replacement for commercial amine-based solvents. ILs and DESs are tunable solvents that have a very low vapor pressure, thus making them an ideal medium for CO2 capture. Moreover, most ILs and DESs have low toxicity and can be recycled without a significant loss in their CO2 capture capability.
  • 899
  • 23 Dec 2022
Topic Review
Direct Contact Condensers
Direct contact heat exchangers can be smaller, cheaper, and have simpler construction than the surface, shell, or tube heat exchangers of the same capacity and can operate in evaporation or condensation modes. For these reasons, they have many practical applications, such as water desalination, heat exchangers in power plants, or chemical engineering devices.
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  • 23 Dec 2022
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