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Topic Review
Biography
Topic Review
Voltage-Source-Converter-Based High Voltage Direct Current Transmission System
Long-distance offshore wind power transmission systems utilize multi-terminal high voltage direct current (MT-HVDC) connections based on voltage source converters (VSCs). In addition to having the potential to work around restrictions, the VSC-based MT-HVDC transmission system has significant technical and economic merits over the HVAC transmission system. Offshore wind farms (OWFs) will inevitably grow because of their outstanding resistance to climate change and ability to provide sustainable energy without producing hazardous waste. Due to stronger and more persistent sea winds, the OWF often has a higher generation capacity with less negative climate effects. The majority of modern installations are distant from the shore and produce more power than the early OWF sites, which are situated close to the shore.
287
20 Nov 2023
Topic Review
Voltage Lifting Techniques for Non-Isolated DC/DC Converters
The conventional boost DC/DC converter is used to step up the input voltage to a desired higher level within the practical limit required by the load with very few components. Stepping up the voltage is achieved by storing the energy in the inductor and releasing it to the output at a higher voltage. The boost converter is very popular for capacitive load applications such as photo-flashers and battery chargers. It is also used in automotive applications, power amplifiers, adaptive control applications, battery power systems, consumer electronics, DC motor drives and power factor correction circuits.
1.3K
02 Mar 2023
Topic Review
Volkswagen Passat NMS
The 2012 Volkswagen Passat (internally designated Volkswagen New Midsize Sedan, or NMS while under development) is a mid-sized sedan that debuted in January 2011 at the Detroit Auto Show, is manufactured at the Volkswagen Chattanooga Assembly Plant, replaces the Passat B6 in the North American market, and is marketed also in South Korea. At its introduction, the Passat NMS was part of Volkswagen Group's strategy to sell over 800,000 vehicles per year in the North American market. The vehicle was developed by Shanghai Volkswagen Automotive and Volkswagen Passenger Cars, and is partially based on the PQ46 platform used by the European Passat.
2.1K
18 Oct 2022
Topic Review
Volkswagen Golf Estate
Volkswagen has marketed estate/station wagon variants of its Golf model since its third generation in 1993, through its current seventh generation. Volkswagen marketed the station wagon as Jetta Sportwagen and later the Golf Sportwagen in the United States, the Bora Sportwagen in Mexico, Golf Break and later Golf SW in France, Jetta Variant in Brazil, Vento Variant in Argentina, Jetta Wagon in Canada (only for 2009), Golf Wagon in Canada (onwards from 2010), Golf Estate in the United Kingdom and prominently as the Golf Variant in the domestic market in Germany and most other markets.
862
30 Oct 2022
Topic Review
Void Nucleation in Metals
The research discussed about the development of micro-voids in metals, leading to ductile fracture, associated with plastic deformation, without taking into account the cleavage mechanism. Particular emphasis was placed on the results of observations and experimental studies, the characteristics of the phenomenon itself, without in-depth analysis in the field of widely used FEM modelling. The mechanism of void development as a fracture mechanism is presented. Observations of the nucleation of voids in metals from the turn of the 1950s and 1960s to the present day have been described. The nucleation mechanisms related to the defects of the crystal lattice as well as those resulting from the presence of second phase particles were characterised.
1.9K
08 Oct 2022
Topic Review
Voice-Tacking
Voice-tracking, also called cyber jocking and referred to sometimes colloquially as a robojock, is a technique employed by some radio stations in radio broadcasting to produce the illusion of a live disc jockey or announcer sitting in the radio studios of the station when one is not actually present. It is one of the notable effects of radio homogenization.
1.7K
18 Oct 2022
Topic Review
Vlog
A video blog or video log, sometimes shortened to vlog (/vlɒɡ/), is a form of blog for which the medium is video. Vlog entries often combine embedded video (or a video link) with supporting text, images, and other metadata. Entries can be recorded in one take or cut into multiple parts. Vlog category is popular on the video-sharing platform YouTube. In recent years, "vlogging" has spawned a large community on social media, becoming one of the most popular forms of digital entertainment. It is popularly believed that, alongside being entertaining, vlogs can deliver deep context through imagery as opposed to written blogs. Video logs (vlogs) also often take advantage of web syndication to allow for the distribution of video over the Internet using either the RSS or Atom syndication formats, for automatic aggregation and playback on mobile devices and personal computers (see video podcast).
1.6K
22 Nov 2022
Topic Review
VLC/RF Hybrid Network Applications
With the goal of secure and efficient communications, the VLC Consortium (VLCC) was established to promote and standardize VLC technology in 2007. VLC is characterized by high security, as information cannot be filtered. In addition, it is immune to RF interference, meaning that the system can be used freely in environments sensitive to electromagnetic signals.
108
13 Oct 2023
Topic Review
Visually Impaired People
Blind and Visually impaired people (BVIP) face a range of practical difficulties when undertaking outdoor journeys as pedestrians. Over the past decade, a variety of assistive devices have been researched and developed to help BVIP navigate more safely and independently. In addition, research in overlapping domains are addressing the problem of automatic environment interpretation using computer vision and machine learning, particularly deep learning, approaches. Our aim in this article is to present a comprehensive review of research directly in, or relevant to, assistive outdoor navigation for BVIP. We breakdown the navigation area into a series of navigation phases and tasks. We then use this structure for our systematic review of research, analysing articles, methods, datasets and current limitations by task. We also provide an overview of commercial and non-commercial navigation applications targeted at BVIP. Our review contributes to the body of knowledge by providing a comprehensive, structured analysis of work in the domain, including the state of the art, and guidance on future directions. It will support both researchers and other stakeholders in the domain to establish an informed view of research progress.
620
17 May 2021
Topic Review
Visualization Techniques in Building Energy Simulation and Monitoring
Data visualization has become relevant in the framework of the evolution of big data analysis. Being able to understand data collected in a dynamic, interactive, and personalized way allows for better decisions to be made when optimizing and improving performance. Although its importance is known, there is a gap in the research regarding its design, choice criteria, and uses in the field of building energy consumption. Therefore, the state-of-the-art of visualization techniques used in the field of energy performance, in particular by considering two types of building analysis: simulation and monitoring are discussed. Likewise, data visualizations are categorized according to goals, level of detail and target users. Visualization tools published in the scientific literature, as well as those currently used in the IoT platforms and visualization software, were analyzed. The overview can be used as a starting point when choosing the most efficient data visualization for a specific type of building energy analysis.
1.0K
09 Mar 2023
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