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"Patchiness" in mechanical stiffness across a tumor as an early-stage marker for malignancy. [PDF]
BMC Ecol EvolMirzakhel Z +5 more
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Pediatric migraine is characterized by traits of ecological and metabolic dysbiosis and inflammation. [PDF]
J Headache PainPapetti L +12 more
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2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS), 2019
An unbalance current protection relay (60C, 51NC) cannot operate fast enough to avoid catastrophic failure against high system fault currents within capacitor units because traditional unbalance current protection relays are not capable of distinguishing and classifying transient fault current and switching inrush current.
Theerasak Patcharoen +1 more
semanticscholar +4 more sources
An unbalance current protection relay (60C, 51NC) cannot operate fast enough to avoid catastrophic failure against high system fault currents within capacitor units because traditional unbalance current protection relays are not capable of distinguishing and classifying transient fault current and switching inrush current.
Theerasak Patcharoen +1 more
semanticscholar +4 more sources
11th IET International Conference on Developments in Power Systems Protection (DPSP 2012), 2012
In a power system network, an unbalanced voltage condition can occur due to various reasons. Excessive voltage unbalance has become an issue of concern in power quality at network level, leading to numerous problems. This calls for a stringent management of unbalanced.
Vishwanatha Hiremathad
openaire +2 more sources
In a power system network, an unbalanced voltage condition can occur due to various reasons. Excessive voltage unbalance has become an issue of concern in power quality at network level, leading to numerous problems. This calls for a stringent management of unbalanced.
Vishwanatha Hiremathad
openaire +2 more sources
Applying unbalance detection relays with motor loads
IEEE Transactions on Industry Applications, 1999Prolonged operation under moderate to severe unbalanced supply conditions is well known to cause undesirable heating in motors. Occasionally, users are surprised that the protective relays intended to detect voltage unbalance will fail to respond. This paper reviews the definitions, calculation methods and standards of supply unbalance and compares the
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Optimal Multi-User Scheduling for the Unbalanced Full-Duplex Buffer-Aided Relay Systems
IEEE Transactions on Wireless Communications, 2019Multi-User scheduling is challenging due to the channel unbalance problem, which leads to system performance degradation. In this paper, two optimal multi-user scheduling schemes maximizing the system throughput are proposed for the fixed and adaptive ...
Cheng Li +4 more
semanticscholar +1 more source
2025 5th International Conference on High Voltage Engineering and Power Systems (ICHVEPS)
Voltage stability is one of the key concerns in electricity issues, especially in intensively industrialized areas with high-voltage consumers. The reliability of power systems in interconnected grids depends on maintaining voltage stability.
Andika Bagaskara +2 more
semanticscholar +1 more source
Voltage stability is one of the key concerns in electricity issues, especially in intensively industrialized areas with high-voltage consumers. The reliability of power systems in interconnected grids depends on maintaining voltage stability.
Andika Bagaskara +2 more
semanticscholar +1 more source
Guidelines for Relay Configuration to Handle Mutual Coupling Effect of Parallel Lines
2025 IEEE 4th International Conference on Smart Technologies for Power, Energy and Control (STPEC)Transposed circuits effectively eliminate the unbalance in mutual impedances between the phases of a line. However, transposing does not eliminate the zero-sequence mutual coupling effect between parallel lines during phase-toearth faults.
Ravindra Kumar, Manoj Tripathy
semanticscholar +1 more source
Determining Critical Clearing Time Based on Critical Trajectory Method using Unbalance Fault
International Seminar on Intelligent Technology and Its Applications, 2019Transient stability has an essential role in the electric power system. When a disturbance occurs, the minimum protection relay will operate in about 0.22 seconds.
A. Priyadi +4 more
semanticscholar +1 more source
IEEE International Conference on Power System Technology
Conventional distance protection relays face the challenge of accurately calculating fault distances for unbalanced or non-transposed lines. The unbalance of the lines results in significant deviations during distance calculation.
Carlo Liebermann, P. Schegner
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Conventional distance protection relays face the challenge of accurately calculating fault distances for unbalanced or non-transposed lines. The unbalance of the lines results in significant deviations during distance calculation.
Carlo Liebermann, P. Schegner
semanticscholar +1 more source