Results 61 to 70 of about 38,232 (201)

A Comprehensive Survey on Phasor Measurement Unit Applications in Distribution Systems

open access: yes, 2019
Synchrophasor technology opens a new window for power system observability. Phasor measurement units (PMUs) are able to provide synchronized and accurate data such as frequency, voltage and current phasors, vibration, and temperature for power systems ...
M. Hojabri   +3 more
semanticscholar   +1 more source

Targeting ligament boundaries rather than alignment boundaries in augmented‐reality‐assisted total knee arthroplasty ensures comparable gait patterns between operated and contralateral limbs

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Modern personalised total knee arthroplasty (TKA) techniques aim to mimic natural knee kinematics by focusing on soft‐tissue dynamics rather than static alignment. However, a consistent definition of the optimal ligamentous balance has not yet been established.
Michael Engl   +9 more
wiley   +1 more source

Robust State Estimation Method for Power System Based on Maximum Exponential Square and Data Fusion

open access: yesFrontiers in Energy Research, 2022
In order to solve the problem of the time offset between the supervisory control and data acquisition system and phasor measurement unit and the unknown distribution of non-Gauss noise, this paper proposes a robust state estimation method for power ...
Tong Yu   +6 more
doaj   +1 more source

A Framework for Phasor Measurement Placement in Hybrid State Estimation via Gauss-Newton

open access: yes, 2013
In this paper, we study the placement of Phasor Measurement Units (PMU) for enhancing hybrid state estimation via the traditional Gauss-Newton method, which uses measurements from both PMU devices and Supervisory Control and Data Acquisition (SCADA ...
Chang, Tsung-Hui   +2 more
core   +1 more source

Direct Probing of Trap Dynamics in β‐Ga2O3 Schottky Barrier Diodes Using Single‐Voltage‐Pulse Characterization

open access: yesAdvanced Science, Volume 13, Issue 13, 3 March 2026.
A single‐pulse approach uncovers trap dynamics in β‐Ga2O3 Schottky barrier diodes. Transient current profiling reveals rapid electron capture, delayed trap filling, and clear thermal effects. Extracted trap densities, capture time constants, and activation energies indicate that this simple pulse technique enables effective evaluation of trap states ...
Thanh Huong Vo   +5 more
wiley   +1 more source

A novel multi-task learning method for evaluating short-term voltage stability with incomplete PMU measurements

open access: yesComplex & Intelligent Systems, 2023
Methods for short-term voltage stability (STVS) assessment based on phasor measurement unit (PMU) data have become quite abundant. However, most of them are challenged to deal with the commonly encountered incomplete PMU data.
Tonglin Luo, Xuchu Jiang
doaj   +1 more source

A Robust Scheme for Coherency Detection in Power Systems

open access: yesJurnal Nasional Teknik Elektro, 2021
This paper presents an approach for online generator coherency identification based on windowed dynamic time warping (DTW). Generator rotor speed deviations measured by phasor measurement units (PMUs) are used as input data to compute a DTW ...
Gideon Adom-Bamfi   +1 more
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +1 more source

Attitude and Involvement Regarding Sexual and Reproductive Health Among University Students: A Cross‐Sectional Study in Bangladesh

open access: yesHealth Science Reports, Volume 9, Issue 3, March 2026.
ABSTRACT Background and Aims Sexual and reproductive health (SRH) is a crucial aspect of overall health and well‐being, especially among young adults. However, in many low‐ and middle‐income countries, including Bangladesh, SRH issues remain underexplored due to sociocultural taboos, stigma, and inadequate education.
Ishita Akhter   +7 more
wiley   +1 more source

Estimacija stanja u elektroenergetskom sistemu sa PMU uređajima i maliciozni napad injektiranjem loših merenja i njegova detekcija

open access: yesEnergija, Ekonomija, Ekologija
Ovaj rad istražuje značaj primene metode estimacije stanja u elektroenergetskim sistemima, posebno fokusirajući se na ulogu PMU (Phasor Measurement Unit) uređaja. Prikazane su osnovni principi i prednosti estimatora stanja u odsustvu PMU merenja, a zatim
Vladimir Bečejac   +4 more
doaj   +1 more source

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