Results 51 to 60 of about 9,722 (191)

Ultrafast Multilevel Switching and Synaptic Behavior in a Planar Quantum Topological Memristor

Advanced Science, EarlyView.
Dry‐transferred Bi2Te3 layers enable a planar quantum topological memristor framework. In‐plane topological surface states facilitate ultrafast & low‐power operations. Coexisting analog and digital modes support current‐controlled multilevel states. PQTM exhibits 105 s retention, 103 cycles endurance, and reproducibility across 24 devices.
Mamoon Ur Rashid, Usman Safder, Sobia Ali Khan, Anh‐Tuan Pham, Muhammad Sheeraz, Nguyen‐Hoang Dang, Duy Le Thanh, Zeeshan Tahir, Faisal Maqbool, Koo‐Hyun Chung, Sunglae Cho, Jungdae Kim, Yong Soo Kim   +12 more
wiley   +1 more source

A method exploiting direct communication between phasor measurement units for power system wide-area protection and control algorithms

MethodsX, 2017
Synchrophasor measurements from Phasor Measurement Units (PMUs) are the primary sensors used to deploy Wide-Area Monitoring, Protection and Control (WAMPAC) systems. PMUs stream out synchrophasor measurements through the IEEE C37.118.2 protocol using TCP/
Muhammad Shoaib Almas, Luigi Vanfretti
doaj   +1 more source

PMU-Based ROCOF Measurements: Uncertainty Limits and Metrological Significance in Power System Applications

, 2019
In modern power systems, the Rate-of-Change-of-Frequency (ROCOF) may be largely employed in Wide Area Monitoring, Protection and Control (WAMPAC) applications. However, a standard approach towards ROCOF measurements is still missing.
Derviskadic, Asja, Frigo, Guglielmo, Paolone, Mario, Zuo, Yihui   +3 more
core   +1 more source

RRAM Variability Harvesting for CIM‐Integrated TRNG

Advanced Electronic Materials, EarlyView.
This work demonstrates a compute‐in‐memory‐compatible true random number generator that harvests intrinsic cycle‐to‐cycle variability from a 1T1R RRAM array. Parallel entropy extraction enables high‐throughput bit generation without dedicated circuits. This approach achieves NIST‐compliant randomness and low per‐bit energy, offering a scalable hardware
Ankit Bende, Gokulnath Rajendran, Regina Dittmann, Anupam Chattopadhyay, Vikas Rana   +4 more
wiley   +1 more source

Reduced Variability in Threshold Switches Using Heterostructures of SiOx and Vertically Aligned MoS2

Advanced Electronic Materials, EarlyView.
Heterostructures of SiOx and vertically aligned MoS2 exhibit reliable threshold switching by guiding Ag ion migration through van der Waals gaps. Compared to SiOx‐only devices, these heterostructures demonstrate higher switching voltages, faster switching speeds, and reduced variability.
Jimin Lee, Rana Walied Ahmad, Sofía Cruces, Dennis Braun, Lukas Völkel, Ke Ran, Joachim Mayer, Stephan Menzel, Alwin Daus, Max C. Lemme   +9 more
wiley   +1 more source

PMUS-HOSGD tensor decomposition method and its application in tag recommendation [PDF]

Jisuanji gongcheng, 2018
The current label recommended system uses tensors to store “user-resource-label” three-dimensional data,mining the potential semantic association among the three.In order to solve the sparseness problem of three-dimensional data and avoid the data ...
YANG Lin,GU Junhua,GUAN Lei
doaj   +1 more source

Globally optimal phasor measurement unit placement using branch and bound algorithm

Ain Shams Engineering Journal, 2021
This paper presents a new global optimal Phasor Measurement Unit (PMU) placement approach based on branch and bound algorithm. The proposed technique provides the global minimum number and locations of PMUs for any power system.
Mohamed Z. Kamh, Mohamed R. Younis, Amr M. Ibrahim   +2 more
doaj   +1 more source

A Software-based Low-Jitter Servo Clock for Inexpensive Phasor Measurement Units

, 2018
This paper presents the design and the implementation of a servo-clock (SC) for low-cost Phasor Measurement Units (PMUs). The SC relies on a classic Proportional Integral (PI) controller, which has been properly tuned to minimize the synchronization ...
Brunelli, Davide, Fontanelli, Daniele, Laverty, David, Macii, David, Tosato, Pietro   +4 more
core   +1 more source

Decoding Tattoo and Permanent Makeup Pigments: Linking Physicochemical Properties to Absorption, Distribution, Metabolism, and Elimination Profiles Using Quantitative Structure–Activity Relationship (QSAR)‐Based New Approach Methodologies (NAMs)

Advanced Intelligent Discovery, EarlyView.
This study applies QSAR‐based new approach methodologies to 90 synthetic tattoo and permanent makeup pigments, revealing systemic links between their physicochemical properties and absorption, distribution, metabolism, and elimination profiles. The correlation‐driven analysis using SwissADME, ChemBCPP, and principal component analysis uncovers insights
Girija Bansod, Ajay Vikram Singh, Preeti Bhardwaj, Tulika Rai, Sweta Vijay Nakhale, Amruta Shelar, Rajendra Patil, Peter Laux, Andreas Luch, Christopher J. Osgood, Michael W. Stacey   +10 more
wiley   +1 more source

Optimal placement of phasor measurement units considering islanding contingency, communication infrastructure, and quality of service

Heliyon, 2019
In this study, the PMUs are placed to operate in normal and islanded cases taking into account power system observability, reliability, Communication Infrastructure (CI), and latency time associated with this CI.
M.M.H. Elroby, S.F. Mekhamer, H.E.A. Talaat, M.A.M. Hassan   +3 more
doaj   +1 more source