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Topic Review
External Human–Machine Interface of AVs
In future urban traffic, it is more likely that automated vehicles (AVs) will operate not in separated traffic spaces but in so-called mixed traffic environments where different types of traffic participants interact. Therefore, AVs must be able to communicate with other traffic participants, e.g., pedestrians as vulnerable road users (VRUs), to solve ambiguous traffic situations. Taking current traffic communication patterns into account, a combination of implicit communication via the driving behavior (e.g., deceleration, position in lane) and explicit communication via an external Human–Machine Interface (eHMI) seems to be a promising approach. The eHMI consists of an external interface connected to the vehicle, which can transmit explicit signals enabling interaction between AVs and other TPs.
  • 953
  • 15 Aug 2021
Topic Review
External Thermal Insulation Composite Systems
External Thermal Insulation Composite System (ETICS) is a commonly used solution in EU countries to increase building energy efficiency. The article describes ETICS in terms of environmental impact from two perspectives, i.e., industry and academia. In EU countries, ETICS manufacturers to place construction products to the market must subject it to the assessment and verification of constancy of performance (AVCP). The basis of this process is the European Technical Assessment (ETA). Based on the number of issued and valid ETAs for ETICS and the number of Environmental Product Declarations (EPDs), the dimension of sustainability issues was discussed.
  • 1.1K
  • 10 Jan 2022
Topic Review
Extra (Acting)
A background actor or extra is a performer in a film, television show, stage, musical, opera or ballet production, who appears in a nonspeaking or nonsinging (silent) capacity, usually in the background (for example, in an audience or busy street scene). War films and epic films often employ background actors in large numbers: some films have featured hundreds or even thousands of paid background actors as cast members (hence the term "cast of thousands"). Likewise, grand opera can involve many background actors appearing in spectacular productions. On a film or TV set, background actors are usually referred to as "junior artist", "atmosphere", "background talent", "background performers", "background artists", "background cast members" or simply "background", while the term "extra" is rarely used. In a stage production, background actors are commonly referred to as "supernumeraries". In opera and ballet, they are called either "extras" or "supers".
  • 1.1K
  • 04 Nov 2022
Topic Review
Extraction and Purification of Volatile Fatty Acids
Volatile fatty acids (VFA) are intermediary degradation products during anaerobic digestion (AD) that are subsequently converted to methanogenic substrates, such as hydrogen (H2), carbon dioxide (CO2), and acetic acid (CH3COOH). VFA recovered from the AAD fermentation can be further converted to sustainable biofuels and bioproducts. This text describes the latest developments in the extraction techniques of VFA from complex organic materials.
  • 1.1K
  • 28 Jan 2023
Topic Review
Extraction Methods for Anthocyanins
Anthocyanins are considered high added-value compounds due to their sensory qualities, colors, and nutritional properties; they are considered bioactive ingredients. They are found in high concentrations in many by-products across the food industry. At present, expensive raw materials and production technologies make the extraction of natural anthocyanins relatively expensive.
  • 6.9K
  • 18 Feb 2022
Topic Review
Extraction of Anthocyanins by High-Hydrostatic-Pressure and Ultra-High-Pressure-Homogenization
The use of high-pressure technologies is a hot topic in food science because of the potential for a gentle process in which spoilage and pathogenic microorganisms can be eliminated; these technologies also have effects on the extraction, preservation, and modification of some constituents. Anthocyanins can be rapidly extracted from skins using High Hydrostatic Pressure (HHP) and cell fragments using Ultra-High Pressure Homogenization (UHPH), releasing them and facilitating their diffusion into the liquid quickly. High Hydrostatic Pressure (HHP) and Ultra-High Pressure Homogenization (UHPH) techniques are gentle and protective of sensitive molecules such as phenols, terpenes, and vitamins. Both techniques are non-thermal technologies with mild temperatures and residence times.
  • 339
  • 09 Oct 2023
Topic Review
Extraction of Metals from Copper Tailings through Leaching
A copper tailing is a residue, product of the flotation of sulfide minerals, which contain a variety of elements that can be valorized. The extraction of metals from copper tailings consist of applying metallurgical techniques, such as acid leaching or magnetic concentration, to obtain a valuable product. Currently, this is an important objective, given that mining operations have increased the generation of tailings. Acid leaching is a process that consists of dissolving a solid material, such as a tailing, by applying an acid solution. This process forms two final products: an insoluble solid, rich in aluminosilicates, and an acid liquid solution with different metal ions. Both products may have different characteristics and can be used for subsequent applications.
  • 2.0K
  • 05 Dec 2022
Topic Review
Extraction of Peanut Skins
In addition to the edible kernel, the peanut seed consists of the woody outer shell and a paper-like substance that surrounds the kernel itself known as the testa or skin.
  • 5.5K
  • 28 Jan 2021
Topic Review
Extraction of Protein from Agricultural Waste
Protein is the link of amino acids bonded by peptide bonds forming the primary, secondary, tertiary, and quaternary structure of the protein. Regardless of the superiority of the protein quantity in animals compared to plants, plant-derived protein has become one of the alternative options in overcoming the increasing environmental issue due to the mass production in the agricultural sector. Plant-derived protein is now receiving attention for its functionality as a sustainable protein source. In recent years, downstream bioprocessing industries are venturing into less tedious, simple, and high-efficiency separation by implementing advanced purification and extraction methods. The separation of proteins, with the main focus on amylase as an enzyme from industrial agriculture waste using various techniques of extraction, is being discussed further.
  • 1.8K
  • 01 Dec 2021
Topic Review
Extreme Clipper
An extreme clipper is a clipper designed to sacrifice cargo capacity for speed. They had a bow lengthened above the water, a drawing out and sharpening of the forward body, and the greatest breadth further aft. Extreme clippers were built in the period 1845 to 1855.
  • 385
  • 09 Nov 2022
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