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Topic Review
Solar Energy
As an essential source of renewable energy, solar energy systems are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy.
  • 852
  • 03 Apr 2023
Topic Review
Unmanned Aerial Vehicles in Precision Agriculture Sensing Applications
Precision agriculture (PA) is becoming highly significant in today’s technologically advanced world and has been considered as the farm for the future. This is a modern farming management concept using digital techniques to monitor and optimize agricultural production processes by using technological advancement. PA uses modern technology and principles to manage the spatial and temporal variability in all aspects of agricultural production for the goal of improving crop performance. 
  • 851
  • 01 Apr 2022
Topic Review
Wireless Charging for Electric Vehicles
Wireless charging modules for electric vehicles (EVs) are being increasingly studied. Two techniques of transferring power to EVs via charging systems can be used: conductive charging and wireless charging. Some notable studies, as presented in this work, focused on developing more effective wireless-charging modules for electric vehicles to pave the way for the creation of more sustainable urban transportation. It is also important to note that attaining this sustainable urban mobility is dependent on using clean energy sources (like solar photovoltaic). As a result, some techniques were discussed to supplement wireless charging and hence reduce the size of the needed energy storage device for urban mobility.
  • 850
  • 02 Mar 2022
Topic Review
Camera-Imaging-Based Measurement of Vital Signs
Techniques for noncontact measurement of vital signs using camera imaging technologies have been attracting increasing attention. For noncontact physiological assessments, computer vision-based methods appear to be an advantageous approach that could be robust, hygienic, reliable, safe, cost effective and suitable for long distance and long-term monitoring. In addition, video techniques allow measurements from multiple individuals opportunistically and simultaneously in groups.
  • 850
  • 07 Sep 2020
Topic Review
Automotive Security Models
As the intelligent car-networking represents the new direction of the future vehicular development, automotive security plays an increasingly important role in the whole car industry chain. On condition that the accompanying problems of security are proofed, vehicles will provide more convenience while ensuring safety. Security models can be utilized as tools to rationalize the security of the automotive system and represent it in a structured manner.
  • 850
  • 08 Dec 2020
Topic Review
Composting
Composting is the most adaptable and fruitful method for managing biodegradable solid wastes; it is a crucial agricultural practice that contributes to recycling farm and agricultural wastes. Composting is profitable for various plant, animal, and synthetic wastes, from residential bins to large corporations. Composting and agricultural waste management (AWM) practices flourish in developing countries, especially Pakistan.
  • 850
  • 16 Mar 2023
Topic Review
Multilevel Inverters in  Battery Electric Vehicles
All electric vehicles are the only way to decarbonize transport quickly and substantially. Although multilevel inverters have already been used in some transportation modes, they are rarely used in road transportation, especially in light-duty passenger battery electric vehicles (BEVs). With the transition to a high 800-V DC link to extend the driving range and enable extreme fast charging, the possibility of using multilevel inverters in commercial light-duty passenger BEVs becomes feasible. Higher efficiency, higher power density, better waveform quality, lower switching frequency, the possibility of using low-rated switches, and inherent fault tolerance are known advantages of multilevel inverters that make them an efficient option for replacing 2-level inverters in high DC link passenger BEVs.
  • 850
  • 12 Mar 2024
Topic Review
Microinjection Moulding of Polymeric Micro Devices
Microinjection moulding has been widely used to mass-produce miniature polymeric devices and/or surface micro/nano structures, such as microneedles for drug delivery and microfluidic devices for diagnostics. The base of a microneedle patch is usually a millimetre with a single needle of several hundred micrometres in size, while the tip radius is smaller than 5 µm; such examples also include micro gears, micro-optical connectors, and micro liquid dispensers. These products have an overall weight of the patch of several milligrams or below. The other typical polymeric micro products would be micro/nano scale features on a large substrate, e.g., microfluidic chips. Microfluidic chips usually have tens to hundreds of micron channels for liquid manipulation. Such micro parts and micro/nano scale features are characterised by their very small dimensions and high surface-to-volume ratios.
  • 849
  • 20 Oct 2022
Topic Review
Water Treatment Residues and Methanogenic Activity in Wastewater-Sludge
The effect of adding alum water treatment residues (WTR) on the methanogenic activity in the digestion of primary domestic wastewater sludge was evaluated through laboratory experiments in sedimentation columns, using total suspended solids (TSS) concentrations from 0.37 to 1.23 g/L. The addition of WTR to primary clarifiers can benefit its effluent water quality in terms of colour, turbidity, chemical oxygen demand (COD), and TSS. However, the presence of WTR can negatively influence the production of methane gas during organic sludge digestion in primary clarifiers, for concentrations of TSS between 14.43 and 25.23 g/L and of VSS between 10.2 and 11.85 g/L. The activity of the Methanothrix sp., curved bacilli, methanococci, and Methanosarcina sp. decreases considerably after 16 days of anaerobic digestion, and methane production seems to only be associated with fluorescent methanogenic bacilli.
  • 849
  • 17 Mar 2022
Topic Review
Skin Lesion Datasets and Image Preprocessing
Skin lesions affect millions of people worldwide. They can be easily recognized based on their typically abnormal texture and color but are difficult to diagnose due to similar symptoms among certain types of lesions.
  • 849
  • 18 Apr 2023
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