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Topic Review
Biography
Topic Review
Flexible Electronics
Flexible electronics is a rapidly growing technology for a multitude of applications. Wearables and flexible displays are some application examples.
1.4K
28 Jan 2021
Topic Review
A Reactive Power Compensation Method
One of the main challenges of today’s electrical power engineering is the symmetrization of grid voltages and the minimization of reactive power flows in distribution networks. There are many negative effects associated with asymmetry in power systems, such as increased losses in electric motors, harmonics transferred to DC systems, or phase currents inequality. With the reactive power compensation method, the active power flow can be reduced even in the presence of angular asymmetry between voltage vectors of the utility grid.
1.4K
09 Feb 2022
Topic Review
Electric Field-Assisted Membrane Processes
Electrofiltration is emerging as an attractive alternative that uses electric field to assist in fouling mitigation during the membrane-based separation processes. By tuning the electrophoretic forces on the feed side of the membrane, all water constituents (except ions) including viruses, bacteria, small and large molecules, and organic and inorganic solids can be prevented from fouling the membrane surface. Theoretically, the electric field-assisted membrane separation process will result in greatly desired clean water flux for the entire duration of operation.
1.4K
29 Nov 2021
Topic Review
Aircraft Noise
Aircraft noise is noise pollution produced by aircraft during the various phases of a flight. Sound production is divided into three categories: Health consequences include sleep disturbance, hearing impairment and heart disease, as well as workplace accidents caused by stress. Memory and recall can also be affected. Governments have enacted extensive controls that apply to aircraft designers, manufacturers, and operators, resulting in improved procedures and cuts in pollution.
1.4K
26 Oct 2022
Topic Review
Fused Filament Fabrication Process
Three-dimensional printing (3DP), also known as additive manufacturing (AM), has rapidly evolved over the past few decades. Researchers around the globe have been putting their efforts into AM processes improvement and materials development. One of the most widely used extrusion-based technology under AM processes is Fused Deposition Modeling (FDM), also known as Fused Filament Fabrication (FFF). Numerical simulation tools are being employed to predict the FFF process complexities and material behavior. These tools allow exploring candidate materials for their potential use in the FFF process and process improvements. The prime objective of this study is to provide a comprehensive review of state-of-the-art scientific achievements in numerical simulations of the FFF process for polymers and their composites.
1.4K
30 Nov 2021
Topic Review
Interleukin-4 and Interleukin-13 Induced Atopic Dermatitis
Atopic dermatitis (AD) is a chronic inflammatory skin disease associated with widespread barrier dysfunction and T helper 2 (Th2) cytokines. AD is an imbalance in the Th2 immune response where there is an increase in the gene expression levels of major Th2 cytokines during the acute phase.
1.4K
07 Mar 2022
Topic Review
Plug-in Electric Vehicles in Sweden
The adoption of plug-in electric vehicles in Sweden is actively supported by the Government of the Kingdom of Sweden. (As of December 2020), a total of 217,704 light-duty plug-in electric vehicles have been registered since 2011, consisting of 148,889 plug-in hybrids, 62,870 all-electric cars, and 5,945 fully electric commercial vans. Sweden has ranked among the world's top ten best-selling plug-in markets since 2015, listed through 2019 as the ninth largest country market. (As of December 2019), the Swedish stock of plug-in passenger cars listed as the sixth largest in Europe. The Swedish plug-in electric market is dominated by plug-in hybrids, representing 75.1% of the Swedish light-duty plug-in electric vehicle registrations through 2018, but began to slightly decline afterwards, reaching 70.3% in 2020. The market share of plug-in electric vehicles climbed from 0.57% in 2013 to 1.53% of new car sales in the country in 2014. The segment market share reached 2.5% in 2015, rose to 5.2% in 2017, 11.3% in 2019, and achieved a record of 32.2% in 2020.
1.4K
05 Nov 2022
Topic Review
CO2 Pipeline: Accidental Releases Modeling
Carbon capture use and storage (CCUS) is considered an effective mitigation strategy to reduce the most challenging emissions from heavy industries and gas processing. The safe transport of carbon dioxide via pipelines is an important aspect for developing large-scale Carbon Capture and Storage projects. Dispersion modeling for heavy gas such as carbon dioxide is considerably different from natural gas. The set up for modeling simulations is more challenging than conventional natural gas pipeline for several reasons, such as the differences in thermodynamics that must be considered. Moreover, when the carbon dioxide is transported in dense or liquid phase, the rapid phase changing, and possible consequent formation of solids should be considered. Finally, the equation of state required for accurate prediction of parameters is generally different than the ones applicable for natural gas.
1.4K
27 Aug 2021
Topic Review
Evaluation of Digital Applications
Digitalization is a transformation process which has already affected many parts of industry and society and is expected to yet increase its transformative speed and impact. In the energy sector, many digital applications have already been implemented. However, a more drastic change is expected during the next decades. Good understanding of which digital applications are possible and what are the associated benefits as well as risks from the different perspectives of the impacted stakeholders is of high importance. On the one hand, it is the basis for a broad societal and political discussion about general targets and guidelines of digitalization. On the other hand, it is an important piece of information for companies in order to develop and sustainably implement digital applications. This entry suggests a methodology to holistically analyze digital applications in the energy sector. The intended purpose of the suggested methodology is to provide a complexity-reduced fact base as input for societal and political discussions and for the development of new digital products, services, or business models. While the methodology is outlined in this entry, in a follow-up article the application of the methodology will be presented and the use of the approach reflected.
1.4K
05 Nov 2020
Topic Review
Automatic Wheelchairs
Automatic wheelchairs refers to devices equipped with wheelchairs, which can move automatically. Automatic wheelchairs have evolved in terms of instrumentation and control, improving the mobility of people with physical disabilities. The different wheelchair control techniques are divided into two categories: sensor technology non-invasively placed on the user and wheelchair instrumentation.
1.4K
26 Nov 2020
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