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Topic Review
Application of SLAM in Autonomous Driving
The applications of Simultaneous Localization and Mapping (SLAM) for autonomous driving with respect to different driving scenarios, vehicle system components and the characteristics of the SLAM approaches are discussed. A real-world road test is presented to demonstrate a multi-sensor-based modernized SLAM procedure for autonomous driving. The numerical results show that a high-precision 3D point cloud map can be generated by the SLAM procedure with the integration of Lidar and GNSS/INS.
  • 1.0K
  • 29 Mar 2023
Topic Review
Three-Section Staff
The three-section staff, triple staff, three-part staff, sansetsukon in Japanese, or originally sanjiegun (Chinese: 三節棍; pinyin: sānjiégùn; Jyutping: saam1 zit3 gwan3, or Chinese: 三節鞭; pinyin: sānjiébiān three-sectional whip), is a Chinese flail weapon that consists of three wooden or metal staffs connected by metal rings or rope. The weapon is also known as 蟠龍棍 panlong gun, "coiling dragon staff". A more complicated version of the two section staff, the staves can be spun to gather momentum resulting in a powerful strike, or their articulation can be used to strike over or around a shield or other defense.
  • 1.0K
  • 10 Oct 2022
Topic Review
Geopolymer Composites Designed for Water and Wastewater Treatment
Since the discovery of geopolymers four decades ago, they have come quite a long way successfully and gained attention, mostly due to the effortlessness for geo-synthesis with lesser emission of greenhouse gases (GHG). Their admirable properties, such as toughness, heat and fire resistance, refractory nature and radiation hardness, altogether make them promising for applications for radioactive waste containment, as well as for pozzolanic action, making them multi-functional. In realism, lots of industrial materials are derived using geopolymers. For example, fiber-based geopolymer composites are regarded as fire-resistant. Quite a lot of geopolymeric composites are positioned in metal tool coatings and the construction of cabinets of airplanes and buildings, with a view to trim down the intensity of inferno incidents. The polymeric chain-like structure of geopolymers contributes higher chemical resistance, lower shrinkage and enhanced resistance to abrasion with high early mechanical strength. This entry describes that applications and interaction of geopolymer.
  • 1.0K
  • 30 Dec 2021
Topic Review
Mullite-Based Ceramics from Mining Waste
Mullite (3Al2O3·2SiO2) is an aluminosilicate characterized by excellent physical properties, which makes it an important ceramic material. In this way, ceramics based on mullite find applications in different technological fields as refractory material (metallurgy, glass, ceramics, etc.), matrix in composite materials for high temperature applications, substrate in multilayer packaging, protective coatings, components of turbine engines, windows transparent to infrared radiation, etc. However, mullite is scarce in nature so it has to be manufactured through different synthesis methods, such as sintering, melting-crystallization or through a sol-gel route. 
  • 1.0K
  • 29 Jul 2021
Topic Review
Integration of Photovoltaic
Electric vehicles are promising and essential to reduce the carbon footprint from the transport sector. Grid power is the primary source to charge the EV. Currently, grid power which comes from burning fossil fuel is not environmentally benevolent. Solar-powered electric vehicles are promising as the required power to charge the EV comes from the PV system, which generates benign energy. PV system can be installed in the car shed or rooftop of a building. For commercial buildings, vehicles are mainly parked during the peak solar radiation time, which can be utilised to charge the EV by employing PV.
  • 1.0K
  • 28 Oct 2020
Topic Review
Green Bioprocessing of Algae-Derived Biochar
Biochar is a carbonaceous substance that is created from algal biomass by thermal breakdown in an oxygen-absence environment.
  • 1.0K
  • 31 Jan 2023
Topic Review
Vertical-Axis Wind Turbine
Basic equations for estimating the aerodynamic power captured by the Anderson vertical-axis wind turbine (AVAWT) are derived from a solution of Navier–Stokes (N–S) equations for a baroclinic inviscid flow. In a nutshell, the pressure difference across the AVAWT is derived from the Bernoulli’s equation—an upshot of the integration of the Euler’s momentum equation, which is the N–S momentum equation for a baroclinic inviscid flow. The resulting expression for the pressure difference across the AVAWT rotor is plotted as a function of the free-stream speed. Experimentally determined airstream speeds at the AVAWT inlet and outlet, coupled with corresponding free-stream speeds, are used in estimating the aerodynamic power captured. The aerodynamic power of the AVAWT is subsequently used in calculating its aerodynamic power coefficient. The actual power coefficient is calculated from the power generated by the AVAWT at various free-stream speeds and plotted as a function of the latter. Experimental results show that at all free-stream speeds and tip-speed ratios, the aerodynamic power coefficient of the AVAWT is higher than its actual power coefficient. Consequently, the power generated by the AVAWT prototype is lower than the aerodynamic power captured, given the same inflow wind conditions. Besides the foregoing, the main purpose of this experiment is to investigate the technical feasibility of the AVAWT. This proof of concept enables the inventor to commercialize the AVAWT.
  • 1.0K
  • 28 Oct 2020
Topic Review
TCES Systems Based on Hydroxides
The exploitation of solar energy, an unlimited and renewable energy resource, is of prime interest to support the replacement of fossil fuels by renewable energy alternatives. Solar energy can be used via concentrated solar power (CSP) combined with thermochemical energy storage (TCES) for the conversion and storage of concentrated solar energy via reversible solid–gas reactions, thus enabling round the clock operation and continuous production. This entry is about High-temperature thermochemical energy storage using the enthalpy of reversible reactions.
  • 1.0K
  • 19 Dec 2020
Topic Review
Olive Oil Industry and Related Waste Management
The production of olive oil involves the sustainable management of the waste produced along the entire production chain. This entry examines the developments regarding cultivation techniques, production technologies, and waste management, highlighting the goals to be achieved and the most reasonable prospects. 
  • 1.0K
  • 19 Jan 2022
Topic Review
BIM and DfMA
The main goal of this study is to explore the adoption of a design for manufacturing and assembly (DfMA) and building information management (BIM) approach during the whole lifecycle of assets. This approach aims to tackle issues inherent in the design of traditional construction methods, such as low productivity and quality, poor predictability and building performance, and energy use, through the implementation of a BIM library of off-site components. In recent years, a renewed interest has been directed to the attempt to provide solutions to these urgent problems through the adoption of new advancements in technologies. However, while there are studies focussing on a BIM-DfMA approach, there is a lack of research regarding how this approach should be adopted during the whole lifecycle of the assets. Furthermore, to the best of our knowledge, defining an efficient way of developing a component-based BIM object library has not yet been included in any of the available studies. A mixed methodology approach has been used in this research. A conceptual framework was developed as the result of an extensive literature review to investigate new advancements in the AEC sector.
  • 1.0K
  • 30 Aug 2021
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