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Topic Review
Machine-Vision-Based Leather Surface Defect Inspection
Machine-vision-based surface defect inspection is one of the key technologies to realize intelligent manufacturing. Leather products are regarded as the most traded products all over the world. Automatic detection, location, and recognition of leather surface defects are very important for the intelligent manufacturing of leather products, and are challenging but noteworthy tasks. Machine-learning-based defect inspection methods include three main links in industrial applications: data annotation, model training, and model inference. Real-time performance in real industrial applications focuses more on this part of model inference.
  • 1.5K
  • 12 Aug 2022
Topic Review
GaN-Based LEDs: Modeling and Simulation
Light-emitting diodes (LEDs) based on Gallium Nitride (GaN) have been revolutionizing various applications in lighting, displays, biotechnology, and other fields. Many theoretical models have been developed for GaN-LED simulation, analysis, and design optimization, including carrier transport models, quantum well recombination models, and light extraction models. The overview below is a strongly abbreviated version of Ref. [1].
  • 1.5K
  • 17 Dec 2020
Topic Review
Utilization of Product Usage Information in Product Development
As emerging technologies such as IoT technologies become widespread, producers can collect large-scale product usage information (PUI) from different stakeholders, including retailers, customers, users, and the providers of product-related services such as maintenance, renting, and leasing. Its content, format, and quality are heterogeneous and cover, for example, service reports, review reports, and embedded systems’ measurements. This information provides producers a better understanding of user expectations, usage situations, product behavior, and performance.
  • 1.5K
  • 14 Jun 2022
Topic Review
Materials for Solar Cells and Supercapacitors
Hybrid systems have gained significant attention among researchers and scientists worldwide due to their ability to integrate solar cells and supercapacitors. Subsequently, this has led to rising demands for green energy, miniaturization and mini-electronic wearable devices. These hybrid devices will lead to sustainable energy becoming viable and fossil-fuel-based sources of energy gradually being replaced. A solar photovoltaic (SPV) system is an electronic device that mainly functions to convert photon energy to electrical energy using a solar power source. 
  • 1.5K
  • 14 Mar 2022
Topic Review
Tactile Sensing Technology Based on Magnetic Sensors
Tactile perception is one of the most important ways for organisms to obtain environmental information, just like vision and hearing. How to make robots acquire tactile perception like human beings is one of the hot spots in scientific research. With the idea of bionics, a large number of tactile sensors have been designed based on the working principle of human skin. Biomimetic tactile sensors are important media for robots to perceive external environment, which help robots get information about pressure, vibration, roughness, and temperature. Tactile sensors have played an important role in medical treatment, artificial skin, robot tactile feedback, and human–machine interaction. With the discovery of new materials and the development of microelectronics, tactile sensors based on a variety of transducing mechanisms such as resistance, capacitance, piezoelectric, and optics have been developed.
  • 1.5K
  • 08 Dec 2022
Topic Review
3D Geological Property Modeling Methods
Three-dimensional (3D) geological property modeling is used to quantitatively characterize various geological attributes in 3D space based on geostatistics with the help of computer visualization technology, and the results are often stored in grid data. The 3D geological property modeling includes two main components, grid model generation and property interpolation.
  • 1.5K
  • 15 Jun 2022
Topic Review
General Atomics Avenger
The General Atomics Avenger (formerly Predator C) is a developmental unmanned combat air vehicle built by General Atomics Aeronautical Systems for the U.S. military.
  • 1.5K
  • 03 Nov 2022
Topic Review Peer Reviewed
Opportunities for Catalytic Reactions and Materials in Buildings
Residential and commercial buildings are responsible for over 30% of global final energy consumption and accounts for ~40% of annual direct and indirect greenhouse gas emissions. Energy efficient and sustainable technologies are necessary to not only lower the energy footprint but also lower the environmental burden. Many proven and emerging technologies are being pursued to meet the ever-increasing energy demand. Catalytic science has a significant new role to play in helping address sustainable energy challenges, particularly in buildings, compared to transportation and industrial sectors. Thermally driven heat pumps, dehumidification, cogeneration, thermal energy storage, carbon capture and utilization, emissions suppression, waste-to-energy conversion, and corrosion prevention technologies can tap into the advantages of catalytic science in realizing the full potential of such approaches, quickly, efficiently, and reliably. Catalysts can help increase energy conversion efficiency in building related technologies but must utilize low cost, easily available and easy-to-manufacture materials for large scale deployment. This entry presents a comprehensive overview of the impact of each building technology area on energy demand and environmental burden, state-of-the-art of catalytic solutions, research, and development opportunities for catalysis in building technologies, while identifying requirements, opportunities, and challenges.
  • 1.4K
  • 18 Apr 2022
Topic Review
Alternative Clinker Technologies for Reducing Carbon Emissions
The production of one ton of Ordinary Portland Cement releases considerable amounts of CO2 into the atmosphere. As the need and demand for this material grows exponentially, it has become a challenge to increase its production at a time when climate-related problems represent a major global concern. The two main CO2 contributors in this process are fossil fuel combustion to heat the rotary kiln and the chemical reaction associated with the calcination process, in the production of the clinker, the main component of OPC. The current entry presents a critical review of the existent alternative clinker technologies (ACTs) that are under an investigation trial phase or under restricted use for niche applications and that lead to reduced emissions of CO2.
  • 1.5K
  • 24 Jan 2022
Topic Review
Geosynchronous Satellite Launch Vehicle Mark III
The Geosynchronous Satellite Launch Vehicle Mark III (GSLV-III), also referred to as the Launch Vehicle Mark 3 (LVM3) is a three-stage medium-lift launch vehicle developed by the Indian Space Research Organisation (ISRO). It is designed to launch satellites into geostationary orbit and is intended as a launch vehicle for crewed missions under the Indian Human Spaceflight Programme. The GSLV-III has a higher payload capacity than the similarly named GSLV. After several delays and a sub-orbital test flight on 18 December 2014, ISRO successfully conducted the first orbital test launch of GSLV-III on 5 June 2017 from the Satish Dhawan Space Centre, Andhra Pradesh. A second orbital test flight is planned for October 2018. In June 2018, the Union Cabinet approved ₹4,338 crore (US$610 million) to build 10 GSLV Mk-III rockets over a five-year period. On 15 August 2018, Indian Prime Minister Narendra Modi announced in his Independence Day speech an Indian foray into human spaceflight in 2022 with the aim of sending a crewed spacecraft called Gaganyaan to low Earth orbit. The GSLV Mk III will be the launch vehicle for this mission.
  • 1.5K
  • 13 Oct 2022
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