Results 11 to 20 of about 1,281,214 (279)

Fault Ride-through Hybrid Controller for MMC-HVDC Transmission System via Switching Control Units Based on Bang-bang Funnel Controller

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
This paper proposes a fault ride-through hybrid controller (FRTHC) for modular multi-level converter based high-voltage direct current (MMC-HVDC) transmission systems. The FRTHC comprises four loops of cascading switching control units (SCUs).
Yang Liu   +3 more
doaj   +2 more sources

On the parametric dependence of the volume of integral funnels and their approximations [PDF]

open access: yesVestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki, 2022
We consider a nonlinear control system in a finite-dimensional Euclidean space and on a finite time interval, which depends on a parameter. Reachable sets and integral funnels of a differential inclusion corresponding to a control system containing a parameter are studied.
Ushakov, V. N., Ershov, A. A.
openaire   +4 more sources

Selection the optimal parameters of drilling and blasting operations at the open pit of stone coal 'Progorelica' - Baljevac [PDF]

open access: yesMining and Metallurgy Engineering Bor, 2016
Blasting is an integral part of excavation in the field 'Progorelica'. The quality of blasted material depends on proper selection of drilling and blasting operations, why the arrangement of boreholes and quantity of explosives need to be determined so ...
Cvetković Vladan   +2 more
doaj   +2 more sources

Acupuncture in the Treatment of Abnormal Muscle Tone in Children with Cerebral Palsy: A Meta-Analysis

open access: yesBehavioural Neurology, 2023
Objective. To analyse the clinical efficacy of acupuncture and routine treatment in improving dystonia in children with cerebral palsy. Method. The randomized controlled trials published from the establishment of the databases to August 2022 on ...
Yan Yuanjie   +5 more
doaj   +2 more sources

Experimental thermal analysis of brake cooling relative to mass flow of air through a ventilated brake disc

open access: yesCase Studies in Thermal Engineering
Individual component testing is an integral part of vehicle development and can be performed in multiple stages of the product development process. One such component assembly that often requires extensive testing is the brake system. The brake system is
Tarun Kadri Sathiyan   +3 more
doaj   +2 more sources

CONTROL SYSTEM DEPENDING ON A PARAMETER

open access: yesUral Mathematical Journal, 2021
A nonlinear control system depending on a parameter is considered in a finite-dimensional Euclidean space and on a finite time interval. The dependence on the parameter of the reachable sets and integral funnels of the corresponding differential ...
Vladimir N. Ushakov   +3 more
doaj   +1 more source

Sales prospecting framework: Marketing team, salesperson competence, and sales structure

open access: yesBAR: Brazilian Administration Review, 2021
Sales management is an integral part of virtually all market exchanges. Marketing team, sales opportunities, salesperson skills, firm sales resources, digital platforms, and sales compensation plan create a marketing-salesperson-firm dynamic underlying ...
Valter Afonso Vieira   +1 more
doaj   +1 more source

The Peculiar Ejecta Rings in the O-Rich Supernova Remnant Puppis A: Evidence of a Binary Interaction?

open access: yesThe Astrophysical Journal, 2023
Near the center of the Puppis A supernova remnant a series of nested, optically emitting rings of high-velocity ejecta (known as “the Swirl”) were identified several decades ago by Winkler et al.
Parviz Ghavamian   +4 more
doaj   +1 more source

Correlation between alveolar cleft morphology and the outcome of secondary alveolar bone grafting for unilateral cleft lip and palate

open access: yesBMC Oral Health, 2022
Background Secondary alveolar bone grafting (SABG) is an integral part of the treatment for cleft lip and alveolus and cleft lip and palate. However, the outcome of SABG was not satisfactory as expected, factors that affecting the outcome were still ...
Xinlei Yu, Yiping Huang, Weiran Li
doaj   +1 more source

Comparative Efficacy of Acupuncture-Related Techniques for Urinary Retention After a Spinal Cord Injury: A Bayesian Network Meta-Analysis

open access: yesFrontiers in Neurology, 2022
BackgroundUrinary retention is one of the most frequent complications of spinal cord injuries (SCI) and negatively impacts patient satisfaction and quality of life.
Kelin He   +6 more
doaj   +1 more source

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