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Topic Review
Hybrid Graphene/Fiber Reinforced Cementitious Composites
Graphene with fascinating properties has been deemed as an excellent reinforcement for cementitious composites, enabling construction materials to be smarter, stronger, and more durable. However, some challenges such as dispersion issues and high costs, hinder the direct incorporation of graphene-based reinforcement fillers into cementitious composites for industrial production. The combination of graphene with conventional fibers to reinforce cement hence appears as a more promising pathway especially towards the commercialization of graphene for cementitious materials.  This entry introduces the preparation and the enhancement of hybrid graphene-fiber reinforced cementitious composites.
  • 838
  • 09 Oct 2021
Topic Review
Harbour Defence Motor Launch
The harbour defence motor launch (HDML) was a 72 ft (22 m) long British-designed motor vessel used for harbour defence during World War II. Nearly 500 were built by numerous Allied countries during the war. The HDML was designed by W J Holt at the Admiralty in early 1939. During the war HDMLs were constructed, mainly by yacht builders, in the United Kingdom and a number of other allied countries. In view of their later expanded combat roles in some Commonwealth navies some HDMLs were re-designated as "seaward defence motor launches" (SDML) or "seaward defence boats" (SDB).
  • 838
  • 31 Oct 2022
Topic Review
General Theory of Photodetectors
Photodetectors are one of the popular types of technology used in ultraviolet radiation research. They are widely used in the industrial area (flame detectors, fire alarm systems, extreme UV lithography), national security (missile defense, military recognition, explosives detection, forensic analysis, secure communications), in fields such as medicine (UV imaging, protein analysis, and DNA sequencing) or biology (biological agent detection), and when dealing with environmental issues (ozone detection, air pollution determination, disinfection, and decontamination).
  • 837
  • 19 May 2023
Topic Review
ERYX
ERYX is a short-range portable SACLOS-based wire-guided anti-tank missile (ATGM) produced by European company MBDA. It is used by several countries, including the Canadian Army, French, and Norwegian armies. The weapon can also be used against bunkers and pillboxes. It also has some capability in the anti aircraft role to bring down low flying helicopters, due to its wire guided system. An agreement was reached in 1989 between the French and Canadian governments to co-produce the ERYX missile system. It entered service in 1994.
  • 837
  • 04 Nov 2022
Topic Review
Khalili Collection of Japanese Art
The Khalili Collection of Japanese Art is a private collection of decorative art from Meiji-era (1868–1912) Japan , assembled by the British-Iranian scholar, collector and philanthropist Nasser D. Khalili. With more than 1,400 objects in total, it is comparable only to the collection of the Japanese imperial family in terms of size and quality. The collection includes metalwork, enamels, ceramics, and lacquered objects, including works by artists of the imperial court that were exhibited at the Great Exhibitions of the late 19th century. Rather than covering the whole range of Meiji-era decorative art, Khalili has focused on objects of the highest technical and artistic quality. He observed that Japanese arts were less well-documented than European arts of the same period, despite being technically superior: "Whilst one could argue it is relatively easy to replicate a Fabergé, to replicate the work of the Japanese master is nigh on impossible." The collection is one of eight assembled, published, and exhibited by Khalili, and one of three that feature art works from Japan, along with the Khalili Collection of Kimono and the Khalili Collection of Enamels of the World. Although the collection is not on permanent public display, its objects are lent to cultural institutions and have appeared in many exhibitions from 1994 onwards. Exhibitions drawing exclusively from the collection have been held at the British Museum, Israel Museum, Van Gogh Museum, Portland Museum, Moscow Kremlin Museums, and other institutions worldwide. As well as assembling these collections, Khalili founded the Kibo Foundation (from the Japanese word for "hope") to promote the study of art and design of the Meiji era, publishing scholarship about the collection and its historical context.
  • 837
  • 08 Nov 2022
Topic Review
Fluidized Bed Reactors
Fluidized gasification reactors can be used to produce hydrogen. They are operated in three modes including bubbling, circulating, and dual beds, as depicted inC. In a bubbling fluidized bed (BFB), the fuel is introduced from the bottom or side of the bed. The bed starts bubbling when the velocity of gasification agent is beyond the minimum fluidization velocity.
  • 837
  • 18 Sep 2021
Topic Review
Functionalised Graphene for Sensing Applications
The demand for gas detection is increasing nowadays. However, its fast detection at room temperature (RT) is a major challenge. Graphene is found to be the most promising sensing material for RT detection, owing to its high surface area and electrical conductivity. The high edge functionalized chemically synthesized graphene derivatives thin films are promising candidates to achieve a fast gas sensing response at room temperature. The high amount of edge functional groups is prominent for the sorption of analyte gas/vapor molecules. 
  • 837
  • 21 May 2021
Topic Review
Laser Wakefield Electron Acceleration
Laser wakefield electron acceleration (LWFA) is an emerging technology for the next generation of electron accelerators. As intense laser technology has rapidly developed, LWFA has overcome its limitations and has proven its possibilities to facilitate compact high-energy electron beams.
  • 836
  • 30 Jun 2021
Topic Review
Drying Biomass Using Solar Energy
In the world, energy used for drying processes consumes 7–15% of industrial energy. Therefore, the cost of this energy is a crucial challenge to looking for an alternative source of energy, for example, solar energy. Solar energy is available in almost all the world, is free and provides a clean and free pollution energy source. Furthermore, solar energy has a higher development potential than other alternative energy sources, such as the ocean, biomass and geothermal.
  • 836
  • 28 Dec 2022
Topic Review
Antisense Peptide Technology
Antisense peptide technology (APT) is based on a useful heuristic algorithm for rational peptide design. It was deduced from empirical observations that peptides consisting of complementary (sense and antisense) amino acids interact with higher probability and affinity than the randomly selected ones. This phenomenon is closely related to the structure of the standard genetic code table, and at the same time, is unrelated to the direction of its codon sequence translation.
  • 836
  • 11 Oct 2021
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