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A post-processing adjustment technique which aims for enhancement of dual-frequency SURF (Second order UltRasound Field) reverberation-noise suppression imaging in medical ultrasound is analyzed. Two variant methods are investigated through…

Mathematical Physics · Physics 2013-03-27 Sven Peter Nasholm , Rune Hansen , Bjørn A. J. Angelsen

We demonstrate synthesis of super-octave-spanning and phase-locked transients in the multi-terahertz frequency range with amplitudes exceeding 13 MV/cm. Sub-cycle polar asymmetry of the electric field is adjusted by changing the relative…

The recent progress in the context of elastic metamaterials and modulated waveguides with digitally controllable properties has opened new pathways to overcome the limitations dictated by Hermitian Hamiltonians in mechanics. Among the…

Applied Physics · Physics 2022-07-13 Emanuele Riva

The increasing uncertainty level caused by growing renewable energy sources (RES) and aging transmission networks poses a great challenge in the assessment of total transfer capability (TTC) and available transfer capability (ATC). In this…

Signal Processing · Electrical Eng. & Systems 2020-10-29 Xiaoting Wang , Xiaozhe Wang , Hao Sheng , Xi Lin

The wireless power transfer (WPT) system based on parity-time (PT) symmetry has the advantages of robustness, stability, and efficient power transmission. However, traditional PT symmetry structures have limited voltage power output and are…

Applied Physics · Physics 2026-05-06 Xiaokui Kang , Hongbin Ma , Zihui Liu , Yuanyuan Wang , Jiangtao Huangfu , Rui Xi , Ying Li

In the framework of the "Smart ElectroMagnetic Environment" (SEME), an innovative strategy leveraging Equivalence Source concepts is introduced for enhancing the performance of large-scale outdoor wireless communication systems. The…

Systems and Control · Electrical Eng. & Systems 2024-01-12 Pietro Da Rù , Arianna Benoni , Marco Salucci , Paolo Rocca , Andrea Massa

Time-frequency Schmidt (TFS) modes of ultrafast quantum states are naturally compatible with high bit-rate integrated quantum communication networks. Thus they offer an attractive alternative for the realization of high dimensional quantum…

We present a new empirical pseudopotential (EPM) calculation approach to simulate the million atom nanostructured semiconductor devices under potential bias using the periodic boundary conditions. To treat the non-equilibrium condition,…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Xiang-Wei Jiang , Shu-Shen Li , Jian-Bai Xia , Lin-Wang Wang

Wireless power transfer (WPT) has garnered increasing attention due to its potential to eliminate device-side batteries. With the advent of (distributed) multiple-input multiple-output (MIMO), radio frequency (RF) WPT has become feasible…

Signal Processing · Electrical Eng. & Systems 2024-08-21 Gilles Callebaut , Jarne Van Mulders , Bert Cox , Liesbet Van der Perre , Lieven De Strycker , François Rottenberg

A deep neural network solution for time-scale modification (TSM) focused on large stretching factors is proposed, targeting environmental sounds. Traditional TSM artifacts such as transient smearing, loss of presence, and phasiness are…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-01 Leonardo Fierro , Alec Wright , Vesa Välimäki , Matti Hämäläinen

This paper proposes a spectral-based tuning method for proportional-integral (PI) controllers in integrating-plus-dead-time (IPDT) systems. The design objective is to achieve unified exponential decay for both reference tracking and…

Systems and Control · Electrical Eng. & Systems 2025-07-03 Dhamdhawach Horsuwan

To extend the applicability of density functional theory for superconductors (SCDFT) to systems with significant particle-hole asymmetry, we construct a new exchange-correlation kernel entering the gap equation. We show that the kernel is…

Superconductivity · Physics 2013-07-22 Ryosuke Akashi , Ryotaro Arita

This letter describes a 40.68 MHz wireless power transfer receiver for implantable applications focused on minimizing tissue heating. The system features a novel power radiated efficiency optimization strategy and a fast-settling active…

Systems and Control · Electrical Eng. & Systems 2025-06-10 Ronald Wijermars , Yi-Han Ou-Yang , Sijun Du , Dante Gabriel Muratore

Quantum noise reduction below the shot noise limit is a signature of light-matter quantum interaction. A limited amount of squeezing can be obtained along the transient evolution of a two-level system resonantly interacting with a harmonic…

This paper proposes a scientifically reasonable polarization mode dispersion (PMD) emulator (PMDE) for coherent optical fiber transmission. Guidelines are physically correct modeling of the polarization-dispersive fiber, the time-variable…

Signal Processing · Electrical Eng. & Systems 2019-03-14 Reinhold Noe , Benjamin Koch

This letter is devoted to point out a specific character of the Finite-Difference-Time-Domain method through the study of nano-structures supporting geometrical symmetry-protected modes that can not be excited at certain conditions of…

Optics · Physics 2020-10-02 A. Hoblos , M. Suarez , B. Guichardaz , N. Courjal , M. -P. Bernal , F. I. Baida

We propose an enhanced spatial modulation (SM)-based scheme for indoor visible light communication systems. This scheme enhances the achievable throughput of conventional SM schemes by transmitting higher order complex modulation symbol,…

Signal Processing · Electrical Eng. & Systems 2022-01-21 Shimaa Naser , Lina Bariah , Sami Muhaidat , Mahmoud Al-Qutayri , Paschalis C. Sofotasios

In many quantum architectures the solid-state qubits, such as quantum dots or color centers, are interfaced via emitted photons. However, the frequency of photons emitted by solid-state systems exhibits slow uncontrollable fluctuations over…

Quantum Physics · Physics 2016-01-27 H. F. Fotso , A. E. Feiguin , D. D. Awschalom , V. V. Dobrovitski

We propose a new artificial-noise aided hybrid time-switching/power-splitting scheme for orthogonal frequency-division multiplexing (OFDM) systems to securely transmit data and transfer energy to a legitimate receiving node. In our proposed…

Networking and Internet Architecture · Computer Science 2016-12-20 Ahmed El Shafie , Kamel Tourki , Naofal Al-Dhahir

Far-field wireless power transfer, based on radio frequency (RF) waves, came into the picture to fulfill the power need of large Internet of Things (IoT) networks, the backbone of the 5G and beyond era. However, RF communication signals…

Systems and Control · Electrical Eng. & Systems 2024-08-28 Prerna Dhull , Graduate Student Member , Dominique Schreurs , Giacomo Paolini , Alessandra Costanzo , Mehran Abolhasan , Negin Shariati
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