Experimental demonstration of an arbitrary shape dc electric concentrator.
TLDR
It is shown that one constant DNM is sufficient for localizing steady electric current in any arbitrary shape region, which in turn obviates the tedious mathematical calculations that conventional methods suffer from.Abstract:
Coordinate transformation (CT) theory has shown great potentials in manipulating both time-varying and static fields for different physics ranging from electromagnetism and acoustics to electrostatic and thermal science. Nevertheless, as inhomogeneous and anisotropic materials are required to be realized for the implementation of CT-based devices, the applicability of this method is restricted due to difficulties in the fabrication process. In this paper, based on transformation electrostatic (TE) methodology, the design principle of an arbitrary shape dc electric concentrator is established which yields the enhancement of static electric fields in a predefined region with only one homogeneous conductivity, named as dc null medium (DNM). It is shown that one constant DNM is sufficient for localizing steady electric current in any arbitrary shape region, which in turn obviates the tedious mathematical calculations that conventional methods suffer from. In other words, the same DNM can be used for different concentrators regardless of their cross-section geometries, which makes the presented approach suitable for scenarios where reconfigurability is of utmost importance. Several numerical simulations are performed in order to demonstrate the capability of the proposed dc electric concentrator in localizing steady electric fields into the desired region. Moreover, by utilizing the analogy between electrically conducting materials and resistor networks, the attained DNM is realized with low-cost resistors and then exploited for fabricating a square shape dc electric concentrator on a printed circuit board (PCB). It is demonstrated that the measurement results agree well with the theoretical predictions and numerical simulations, which corroborate the effectiveness of the propounded method. The presented idea of this paper could find applications in scenarios where highly confined electric fields/currents are of critical importance such as electronic skin devices and electrical impedance tomography.read more
Citations
More filters
Journal ArticleDOI
CatBoost for big data: an interdisciplinary review
TL;DR: This survey takes an interdisciplinary approach to cover studies related to CatBoost in a single work, and provides researchers an in-depth understanding to help clarify proper application of Cat boost in solving problems.
Journal ArticleDOI
Self-assembled peptide and protein nanostructures for anti-cancer therapy: Targeted delivery, stimuli-responsive devices and immunotherapy.
Masoud Delfi,Rossella Sartorius,Milad Ashrafizadeh,Esmaeel Sharifi,Yapei Zhang,Piergiuseppe De Berardinis,Ali Zarrabi,Rajender S. Varma,Franklin R. Tay,Bryan Ronain Smith,Bryan Ronain Smith,Pooyan Makvandi +11 more
TL;DR: This review sheds light on the growing interest in self-assembled peptides and proteins and their burgeoning applications in cancer treatment and immunotherapy.
Journal ArticleDOI
Predicting the effects of environmental parameters on the spatio-temporal distribution of the droplets carrying coronavirus in public transport - A machine learning approach.
Mehrdad Mesgarpour,Javad Mohebbi Najm Abad,Rasool Alizadeh,Somchai Wongwises,Somchai Wongwises,Mohammad Hossein Doranehgard,S. Jowkar,Nader Karimi,Nader Karimi +8 more
TL;DR: In this article, the authors developed a predictive tool based on computational fluid dynamics and machine learning to examine the distribution of sneezing droplets in realistic configurations, and identified an optimal range of temperature, humidity and ventilation rate to maintain human comfort while minimising the transmission of droplets.
Journal ArticleDOI
Lipid nanovesicles for biomedical applications: 'What is in a name'?
TL;DR: This article discussed the extensive nomenclature of vesicles based on the suffix "some" that are employed for drug delivery and composed of various types and proportions of lipids and others amphiphilic compounds.
Journal ArticleDOI
Microstructure and mechanical properties of a novel refractory high entropy alloy HfMoScTaZr
TL;DR: In this article, a refractory high entropy alloy with a single disordered BCC solid solution structure with lattice constant a ǫ = 0.3387nm was presented.
References
More filters
Journal ArticleDOI
A review: James H. Meisel, The Fall of the Republic: Military Revolt in France Edward R. Tannenbaum, The Action Française: Diehard Reactionaries in Twentieth-Century France
Journal ArticleDOI
Controlling Electromagnetic Fields
TL;DR: This work shows how electromagnetic fields can be redirected at will and proposes a design strategy that has relevance to exotic lens design and to the cloaking of objects from electromagnetic fields.
Journal ArticleDOI
Pursuing prosthetic electronic skin.
Alex Chortos,Jia Liu,Zhenan Bao +2 more
TL;DR: This Review will cover materials and devices designed for mimicking the skin's ability to sense and generate biomimetic signals.
Journal ArticleDOI
Engineering hybrid nanotube wires for high-power biofuel cells
TL;DR: Under physiological conditions, the maximum power density of a miniature membraneless glucose/oxygen CNT biofuel cell exceeds by far the power density obtained for the current state of art carbon fibre biofuel cells.
Journal ArticleDOI
Design of electromagnetic cloaks and concentrators using form-invariant coordinate transformations of Maxwell’s equations
TL;DR: In this article, a square electromagnetic cloak and an omni-directional electromagnetic field concentrator are described and the functionality of the devices is numerically confirmed by two-dimensional finite element simulations.
Related Papers (5)
Transformation Inside a Null-Space Region and a DC Magnetic Funnel for Achieving an Enhanced Magnetic Flux with a Large Gradient
Fei Sun,Sailing He +1 more