Results 31 to 40 of about 13,098 (275)

Accuracy and precision of zero-echo-time, single- and multi-atlas attenuation correction for dynamic [11C]PE2I PET-MR brain imaging

open access: yesEJNMMI Physics, 2020
Background A valid photon attenuation correction (AC) method is instrumental for obtaining quantitatively correct PET images. Integrated PET/MR systems provide no direct information on attenuation, and novel methods for MR-based AC (MRAC) are still under
João M. Sousa   +10 more
doaj   +1 more source

Regression Filtration With Resetting to Provide Exponential Convergence of MRAC for Plants With Jump Change of Unknown Parameters [PDF]

open access: yesIEEE Transactions on Automatic Control, 2021
This article proposes a new method to provide the exponential convergence of both the parameter and tracking errors of the composite adaptive control system without the persistent excitation (PE) requirement.
A. Glushchenko, V. Petrov, K. Lastochkin
semanticscholar   +1 more source

Introducing MRAC-PSS-VI to Increase Small-Signal Stability of the Power System after Wind Power Integration

open access: yesInternational Transactions on Electrical Energy Systems, 2022
With the gradual increase of wind power penetration in the power system, the impact of wind farm on system stability is becoming more significant. This study designs the power system stabilizer (PSS) based on the model reference adaptive control (MRAC ...
Ping He   +4 more
semanticscholar   +1 more source

Kendali MRAC PID pada Kecepatan Motor DC dengan Analisa Robustness

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2023
Pada penelitian ini dilakukan pengendalian kecepatan motor DC menggunakan Proportional Integral Derivative Model Reference Adaptive Control (PID MRAC).
Imroatul Hudati, Jans Hendri
doaj   +1 more source

East African pholcid spiders: an overview, with descriptions of eight new species (Araneae, Pholcidae) [PDF]

open access: yes, 2012
This paper summarizes current knowledge about East African pholcids. East Africa is defined as the area from 12°S to 5°N and from 28° to 42°E, including all of Uganda, Kenya, Burundi, Rwanda, and Tanzania.
Huber, Bernhard A., Warui, Charles M.
core   +2 more sources

Multi-drug infusion control using model reference adaptive algorithm [PDF]

open access: yes, 2011
Control of physiological states such as mean arterial pressure (MAP) has been successfully achieved using single drug by different control algorithms. Multi-drug delivery demonstrates a significantly challenging task as compared to control with a single ...
Enbiya, Saleh   +2 more
core   +1 more source

Oosagitta gen. nov. from tropical Africa, with revision of two species and description of four new species (Coleoptera: Chrysomelidae, Galerucinae) [PDF]

open access: yes, 2013
After our taxonomic revision of Ootheca Chevrolat, 1837, and the description of Oothecoides Kortenhaus & Wagner, 2011 and Ootibia Kortenhaus & Wagner, 2012, it became clear that a further four galerucine species, closely related to the above named taxa ...
Kortenhaus, Sabine, Wagner, Thomas
core   +3 more sources

Scolopendrellidae (Myriapoda, Symphyla) from the Afrotropics with descriptions of seven new species [PDF]

open access: yes, 2012
Among the Scolopendrellidae belonging to the collection of Symphyla of the Royal Museum for Central Africa (Tervuren, Belgium), ten species were found and seven new species are described: Symphylella erecta sp. nov., S. fuko sp. nov., S. kalundu sp. nov.,
Domínguez Camacho, Miguel   +1 more
core   +3 more sources

West African pholcid spiders: an overview, with descriptions of five new species (Araneae, Pholcidae) [PDF]

open access: yes, 2013
This paper summarizes current knowledge about West African pholcids. West Africa is here defined as the area south of 17°N and west of 5°E, including mainly the Upper Guinean subregion of the Guineo-Congolian center of endemism.
Huber, Bernhard A., Kwapong, Peter
core   +2 more sources

A Novel MRAC Scheme for Output Tracking

open access: yesMathematics, 2022
This paper puts forward a novel output feedback model reference adaptive control (MRAC) scheme for solving an adaptive output tracking problem. The proposed control scheme only needs a scalar function to be updated online, which decreases the system ...
Tingting Tian, Xiaorong Hou, Fang Yan
doaj   +1 more source

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