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This paper introduces an algorithm able to detect and localize the occurrance of a fault in an Active Distribution Network, using the measurements collected by Phasor Measurement Units (PMUs). First, a basic algorithm that works under the…

Systems and Control · Electrical Eng. & Systems 2022-04-13 Francesco Conte , Fabio D'Agostino , Bruno Gabriele , Giacomo-Piero Schiapparelli , Federico Silvestro

The soft error rate (SER) of integrated circuits (ICs) operating in space environment may vary by several orders of magnitude due to the variable intensity of radiation exposure. To ensure the radiation hardness without compromising the…

Instrumentation and Detectors · Physics 2021-04-06 Marko Andjelkovic , Junchao Chen , Aleksandar Simevski , Zoran Stamenkovic , Milos Krstic , Rolf Kraemer

Patch-clamp technique is the gold standard for cellular electrophysiological measurements, which is capable of measuring single ion transport events across the cell membrane. However, the measurement possesses significant complexity, and it…

Instrumentation and Detectors · Physics 2021-01-21 Ali Aytac Seymen , Erol Ozgur , Zeliha Soran-Erdem , Bulend Ortac

A calibration scheme is presented for improved polarization state measurement of terahertz pulses. In this scheme the polarization response of a two-contact terahertz photoconductive detector is accurately measured, and is used to correct…

Optics · Physics 2012-01-25 M. Neshat , N. P. Armitage

Coherent coupling between a large number of qubits is the goal for scalable approaches to solid state quantum information processing. Prototype systems can be characterized by spectroscopic techniques. Here, we use pulsed-continuous wave…

Mesoscale and Nanoscale Physics · Physics 2011-04-01 M. Ziaur Rahman Khan , D. G. Hasko , M. S. M. Saifullah , M. E. Welland

We isolate a novel four-wave mixing process, enabled by Coherent Population Trapping (CPT), leading to efficient phase sensitive amplification. This process is permitted by the exploitation of two transitions starting from the same twofold…

Magnetic quantum sensors based on trapped ions utilize properties of quantum mechanics which have optimized precision and beat current limits in sensor technology. Trapped ions are highly sensitive in a large span of signal ranging from DC…

Quantum Physics · Physics 2026-04-24 Qirat Iqbal , Altaf Hussain Nizamani

A microgrid is a new concept that has changed the power systems dramatically. It is a combination of Distributed Generation Resources (DGR) like Biomass, PV systems, Wind energy, Fuel cell, Diesel Generator, and so on with different types…

Systems and Control · Electrical Eng. & Systems 2020-07-01 Khodakhast Nasirian , Hadi Taheri

Entanglement islands have played a key role in the recent derivation of the Page curve and other progress on the black hole information problem. Arising from the inclusion of connected wormhole saddles in a gravitational replica trick,…

High Energy Physics - Theory · Physics 2025-06-06 Stefano Antonini , Chang-Han Chen , Henry Maxfield , Geoff Penington

The capability to switch between grid-connected and islanded modes has promoted adoption of microgrid technology for powering remote locations. Stabilizing frequency during the islanding event, however, is a challenging control task,…

Systems and Control · Electrical Eng. & Systems 2021-02-22 Yichen Zhang , Chen Chen , Tianqi Hong , Bai Cui , Bo Chen , Feng Qiu

In this paper the empirical observability Gramian calculated around the operating region of a power system is used to quantify the degree of observability of the system states under specific phasor measurement unit (PMU) placement. An…

Optimization and Control · Mathematics 2014-10-08 Junjian Qi , Kai Sun , Wei Kang

Several experimental results show that it is possible to extract useful phase information from reflected GPS signals over the oceans. In this work we begin the development of the theoretical background to account for these results and fully…

Atmospheric and Oceanic Physics · Physics 2007-05-23 Giulio Ruffini i Fores , Francois Soulat

A pulsed balanced homodyne detector has been developed for precise measurements of electric field quadratures of pulsed optical quantum states. A high level of common mode suppression (> 85 dB) and low electronic noise (730 electrons per…

Quantum Physics · Physics 2009-11-07 H. Hansen , T. Aichele , C. Hettich , P. Lodahl , A. I. Lvovsky , J. Mlynek , S. Schiller

Grid-forming, particularly those utilizing droop control and virtual synchronous generators (VSG), can actively regulate the frequency and voltage of microgrid systems, exhibiting dynamic characteristics akin to those of synchronous…

Systems and Control · Electrical Eng. & Systems 2025-05-13 Yan Tong , Qin Wang , Aihong Tang

Trapped ions are a promising modality for quantum systems, with demonstrated utility as the basis for quantum processors and optical clocks. However, traditional trapped-ion systems are implemented using complex free-space optical…

Knowing the connectivity and line parameters of the underlying electric distribution network is a prerequisite for solving any grid optimization task. Although distribution grids lack observability and comprehensive metering, inverters with…

Optimization and Control · Mathematics 2019-02-22 Guido Cavraro , Vassilis Kekatos

We demonstrate non-adiabatic charge pumping utilizing a sequence of coherent oscillations between a superconducting island and two reservoirs. Our method, based on pulsed quantum state manipulations, allows to speedup charge pumping to a…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 F. Hoehne , Yu. A. Pashkin , O. V. Astafiev , M. Möttönen , J. P. Pekola , J. S. Tsai

This paper proposes a DC microgrid state estimation and sensor placement method based on compressive sensing. Formulations of various types of measurements and components are developed under the proposed framework. A measurement placing…

Systems and Control · Electrical Eng. & Systems 2022-02-01 Shutang You , Yilu Liu

One approach to maintaining phase coherence of qubits through dynamical decoupling consists of applying a sequence of Hahn spin-echo pulses. Recent studies have shown that, in certain noise environments, judicious choice of the delay times…

Quantum Physics · Physics 2009-06-24 Hermann Uys , Michael J. Biercuk , John J. Bollinger

Condition monitoring of induction motor has been widely researched over recent years due to its ability to monitor operating characteristics and the health status of induction motor. Various methods have been used to monitor induction…

Systems and Control · Electrical Eng. & Systems 2021-10-15 Rayyan Bin Fairuz