Results 1 to 10 of about 2,752,589 (303)
Postural Stability Margins as a Function of Support Surface Slopes. [PDF]
PLoS ONE, 2016 This investigation examined the effects of slope of the surface of support (35°, 30°, 20°, 10° Facing(Toe) Down, 0° Flat and 10°, 20°, 25° Facing (Toe) Up) and postural orientation on the margins of postural stability in quiet standing of young adults ...
Aviroop Dutt-Mazumder +3 more
doaj +2 more sources
Stability margins for generalized fractional two-dimensional state space models [PDF]
Archives of Control SciencesIn this paper, a new class of bidimensional fractional linear systems is considered. The stability radius of the disturbed system is described according to the H ∞ norm.
Souad Salmi, Djillali Bouagada
doaj +3 more sources
Disk margin based robust stability analysis of a DC motor drive
Engineering Science and Technology, an International Journal, 2022 This research paper investigates optimal tuning of PID co-efficients using the Tree-Seed Algorithm. A DC motor drive with a PID controller is considered a simulation example. The step response of the DC drive with Tree-Seed algorithm-based PID controller
Pasala Gopi +2 more
doaj +1 more source
The Journal of Engineering, 2018 With the interconnection of large power networks, transient voltage stability of AC/DC power systems has been paid more attention in recent years. To investigate main influence of generating facility, high-voltage direct current (HVDC) and motor load for
Wenqian Zhang +4 more
doaj +1 more source
Stability margins monitoring system performance evaluation for various methods of transfer capacity calculations with transient stability constraints [PDF]
E3S Web of Conferences, 2023 The purpose of this work is to determine ways to increase the performance of available power transfer capacity analysis with transient stability constraints, as well as to evaluate the accuracy of the proposed methods.
Neuymin Vladimir +5 more
doaj +1 more source
Impedance Decoupling in DC Distributed Systems to Maintain Stability and Dynamic Performance
Energies, 2017 DC distributed systems are highly reliable and efficient means of delivering DC power or adopting renewable energy resources. However, DC distributed systems are prone to instability and dynamic performance degradation due to the negative incremental ...
Ahmed Aldhaheri, Amir Etemadi
doaj +1 more source
Evidence for Marginal Stability in Emulsions
Physical Review Letters, 2016 We report the first measurements of the effect of pressure on vibrational modes in emulsions, which serve as a model for soft frictionless spheres at zero temperature. As a function of the applied pressure, we find that the density of states D(omega) exhibits a low-frequency cutoff omega*, which scales linearly with the number of extra contacts per ...
Lin, Jie +4 more
openaire +6 more sources
Automatika, 2022 This article studies the effect of dynamic demand response (DR) control on stability delay margins of load frequency control (LFC) systems including communication time delays.
Deniz Katipoğlu +3 more
doaj +1 more source
IEEE Access, 2018 In this paper, a methodology to assess power system voltage stability margins from time-series data is presented. The proposed method obtains time-series from dynamic simulations subject to sequential load changes that are then used as an input to a ...
V S Narasimham Arava, Luigi Vanfretti
doaj +1 more source
A dynamics and stability framework for avian jumping take-off [PDF]
Royal Society Open Science, 2018 Jumping take-off in birds is an explosive behaviour with the goal of providing a rapid transition from ground to airborne locomotion. An effective jump is predicated on the need to maintain dynamic stability through the acceleration phase.
Ben Parslew +2 more
doaj +1 more source