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Topic Review
NEV Battery GU and Recycling
Recycling and gradient utilization (GU) of new energy vehicle (NEV) power batteries plays a significant role in promoting the sustainable development of the economy. GU is an effective means to extend the life cycle of NEV batteries and recognize their value fully. GU refers to the retesting, screening, repairing, pairing, and reuse of power batteries that have been retired from NEV (their performance is reduced to less than 80% of initial performance) under relatively mild conditions. Batteries after GU can be disassembled, and they can be recycled (typically when the remaining capacity is less than 30%) to recover cobalt, lithium, and other precious metals to achieve the “win-win” of resource recovery and environmental protection.
  • 922
  • 08 Jun 2021
Topic Review
Non-Thermal Technologies for Wine Production
In winemaking, sulfur dioxide (SO2) is often used at different stages in the production process (e.g., after harvesting the fruit, after crushing, added to the must before fermentation, before maturation, before bottling). SO2 has the ability to control oxidative processes including polyphenol oxidase and to inhibit Maillard reactions. If left untreated, oxidation can lead to a decrease in the sensorial and nutritional quality of wine.  The use of non-thermal or cold pasteurization technologies for wine preservation was reviewed. The effect of pulsed electric fields (PEF), high pressure processing (HPP), power ultrasound (US), ultraviolet irradiation (UV), high pressure homogenization (HPH), filtration and low electric current (LEC) on wine quality and microbial inactivation was explored and the technologies were compared
  • 510
  • 29 Sep 2021
Topic Review
Occupational Safety and Health Management System Standards
Occupational accidents present a momentous effect on human well-being and, in addition, create large costs in any country’s social health/insurance system. Moreover, the topic of “safety and health” (OSH, OS&H) or “health and safety” (OHS, OH&S) concerning labor (or occupational work) is one of the most significant issues in any corporation. OSHMS systems were developed as a consequence of a plethora of several and severe industrial accidents throughout the decades of the 1970s and 1980s (for example, the Flixborough accident in 1974, the Seveso incident in 1976, and the Piper Alpha disaster in 1987). Thorough examinations of these events revealed insufficiencies in the dominant techniques for the regulation and the management of OSH and determined the necessity to use approaches that methodically address both engineering and educational action. The proliferation of OSH management systems, which have been used worldwide since the 1990s, has dramatically increased the concentration of performance measurement methods, tools, and techniques.
  • 1.6K
  • 04 Nov 2022
Topic Review
Occurrence of Bearing Currents in Electric Machines
In electrical machines, there are numerous negative phenomena of a destructive nature. The constructors of electrical machines try to limit these phenomena and/or minimize their negative effects. One such phenomenon in electrical machines is the occurrence of bearing voltages and currents. Despite their simple structure, the bearings are susceptible to damage to the raceway surface and rolling elements. Even small traces and imperfections of these surfaces may cause a serious failure resulting in the bearing being excluded from further operation.
  • 535
  • 11 Jul 2022
Topic Review
On Predictive Maintenance in Industry 4.0
In the era of the fourth industrial revolution, several concepts have arisen in parallel with this new revolution, such as predictive maintenance, which today plays a key role in sustainable manufacturing and production systems by introducing a digital version of machine maintenance. The data extracted from production processes have increased exponentially due to the proliferation of sensing technologies. Even if Maintenance 4.0 faces organizational, financial, or even data source and machine repair challenges, it remains a strong point for the companies that use it. Indeed, it allows for minimizing machine downtime and associated costs, maximizing the life cycle of the machine, and improving the quality and cadence of production.
  • 1.5K
  • 24 Aug 2022
Topic Review
Opening Paths for Sustainable Businesses
This entry aims to identify and analyse the Scientific Technical Scenary on Corporate Sustainability (STS-CS) and propose a three-way Helix-based structure for its development and guidance on future scientific and technological investments. The study was developed using a combined method of bibliometric analysis and analysis of the content of scientific articles and technical publications (patents, white papers, publications of public bodies, etc.). The scientific articles were researched in the Scopus database and technical publications on the Orbit Intelligence, ProQuest and UN Global Compact platforms. The STS-CS was analysed in the light of scientific and technical literature and the experience of the authors of the study.
  • 568
  • 10 Feb 2021
Topic Review
Operation Optimization of Complex Industrial Processes
The operation optimization of complex industrial processes is a dynamic multi-objective optimization problem. These problems cover industrial areas such as steel, chemicals, and energy. Specifically, they address operation optimization problems under uncertain environments in production processes, with production metrics as the optimization objectives and controllable variables as the decision variables. They consider changing factors in production processes, operational metrics, and constraints on production metrics, establishing dynamic models for solving these problems. Unlike static models, these objectives and constraints change over time, similar to how the Pareto set (PS) and Pareto front (PF) in dynamic multi-objective optimization problems (DMOPs) can change over time. 
  • 233
  • 28 Jan 2024
Topic Review
Ophthalmoscopy
Ophthalmoscopy, also called funduscopy, is a test that allows a health professional to see inside the fundus of the eye and other structures using an ophthalmoscope (or funduscope). It is done as part of an eye examination and may be done as part of a routine physical examination. It is crucial in determining the health of the retina, optic disc, and vitreous humor. The pupil is a hole through which the eye's interior will be viewed. Opening the pupil wider (dilating it) is a simple and effective way to better see the structures behind it. Therefore, dilation of the pupil (mydriasis) is often accomplished with medicated eye drops before funduscopy. However, although dilated fundus examination is ideal, undilated examination is more convenient and is also helpful (albeit not as comprehensive), and it is the most common type in primary care. An alternative or complement to ophthalmoscopy is to perform a fundus photography, where the image can be analysed later by a professional.
  • 882
  • 19 Oct 2022
Topic Review
Optimal Interpolation for infrared satellite data
Thermal infrared remote sensing measurements are blinded to surface emissions under cloudiness because infrared sensors cannot penetrate thick cloud layers. Therefore, surface and atmospheric parameters can be retrieved only in clear sky conditions giving origin to spatial fields flagged with missing pieces of information. Motivated by this we present a methodology to retrieve missing values of some interesting geophysical variables retrieved from spatially scattered infrared satellite observations in order to yield level 3 (L3), regularly gridded, data. The technique is based on a 2-Dimensional (2D) Optimal Interpolation (OI) scheme. The goodness of the approach has been tested on 15-min temporal resolution Spinning Enhanced Visible and Infrared Imager (SEVIRI) emissivity and surface temperature (ST) products over South Italy (land and sea), on Infrared Atmospheric Sounding Interferometer (IASI) atmospheric ammonia (NH3) concentration over North Italy and carbon monoxide (CO), sulfur dioxide (SO2) and NH3 concentrations over China. Sea surface temperature (SST) retrievals have been compared with gridded data from MODIS (Moderate-resolution Imaging Spectroradiometer) observations. For gases concentration, we have considered data from 3 different emission inventories, that is, Emissions Database for Global Atmospheric Research v3.4.2 (EDGARv3.4.2), the Regional Emission inventory in ASiav3.1 (REASv3.1) and MarcoPolov0.1, plus an independent study.
  • 794
  • 30 Oct 2020
Topic Review
Optimization of Offshore Wind and Wave Energy Utilization
The ocean is the largest reservoir of renewable energy resources on the earth, which contains huge wind, wave, tidal and current energy, and other forms of energy. Offshore wind and wave energy utilization refers to the use of Offshore Wind Turbines (OWT) and wave energy converters and other devices to convert wind and wave energy in the ocean into electricity, which has the advantages of being clean, efficient, and sustainable, and is one of the important directions of future energy transformation.
  • 308
  • 03 Aug 2023
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