Results 11 to 20 of about 543,871 (306)

Determinants of economic growth in East African countries: A dynamic panel model approach

Cogent Economics & Finance, 2023
The purpose of this study is to analyze the determinant of economic growth in the region of East African countries from 2002 to 2018. In order to investigate empirically the key determinants of economic growth in East African countries, this study used a
Muuz Hadush, Kidanemariam Gebregziabher, Sisay Biruk   +2 more
doaj   +1 more source

Dynamic mode decomposition with memory

Physical Review E, 2023
This study proposed a numerical method of dynamic mode decomposition with memory (DMDm) to analyze multidimensional time-series data with memory effects. The memory effect is a widely observed phenomenon in physics and engineering and is considered to be the result of interactions between the system and environment.
Anzaki, Ryoji, Sano, Kei, Tsutsui, Takuro, Kazui, Masato, Matsuzawa, Takahito   +4 more
openaire   +2 more sources

Extended Nodal Admittance Matrix Based Stability Analysis of HVDC Connected AC Grids

IEEE Access, 2022
Motivated by emerging HVDC oscillation issues resulted from the interaction with AC grids, impedance-based stability analysis has become an attractive approach in the de-risking studies due to the capability of black-box modelling and clear physical ...
Yonggang Zhang, Daniel Duckwitz, Nils Wiese, Martin Braun   +3 more
doaj   +1 more source

Consistent Dynamic Mode Decomposition [PDF]

SIAM Journal on Applied Dynamical Systems, 2019
We propose a new method for computing Dynamic Mode Decomposition (DMD) evolution matrices, which we use to analyze dynamical systems. Unlike the majority of existing methods, our approach is based on a variational formulation consisting of data alignment penalty terms and constitutive orthogonality constraints.
Omri Azencot, Wotao Yin, Andrea L. Bertozzi   +2 more
openaire   +5 more sources

Randomized Dynamic Mode Decomposition [PDF]

SIAM Journal on Applied Dynamical Systems, 2019
This paper presents a randomized algorithm for computing the near-optimal low-rank dynamic mode decomposition (DMD). Randomized algorithms are emerging techniques to compute low-rank matrix approximations at a fraction of the cost of deterministic algorithms, easing the computational challenges arising in the area of `big data'. The idea is to derive a
N. Benjamin Erichson, Lionel Mathelin, J. Nathan Kutz, Steven L. Brunton   +3 more
openaire   +4 more sources

Multiresolution Dynamic Mode Decomposition [PDF]

SIAM Journal on Applied Dynamical Systems, 2016
Summary: We demonstrate that the integration of the recently developed dynamic mode decomposition (DMD) with a multiresolution analysis allows for a decomposition method capable of robustly separating complex systems into a hierarchy of multiresolution time-scale components. A one-level separation allows for background (low-rank) and foreground (sparse)
J. Nathan Kutz, Xing Fu, Steven L. Brunton   +2 more
openaire   +2 more sources

Введение вспомогательной функции для расчета и разработки алгоритмов функционирования и управления магистральными газопроводами

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2020
Актуальность работы обусловлена необходимостью поиска путей повышения эффективности работы, а также совершенствование математического и программного обеспечения процедур оптимального развития трубопроводных сетей, поэтому в данной статье основное ...
Хуррамова, Р.И., Юлдашев, Б.Э.   +1 more
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Rapid and Sensitive Detection of Severe Acute Respiratory Syndrome Coronavirus 2 in Label-Free Manner Using Micromechanical Sensors

Sensors, 2021
Coronavirus (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has been identified as a deadly pandemic. The genomic analysis of SARS-CoV-2 is performed using a reverse transcription-polymerase chain reaction (RT-PCR)
Dalal A. Aloraini, Aljawhara H. Almuqrin, Amal Alanazi, Qura Tul Ain, Abdullah N. Alodhayb   +4 more
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In-Plane and Out-of-Plane MEMS Piezoresistive Cantilever Sensors for Nanoparticle Mass Detection

Sensors, 2020
In this study, we investigate the performance of two piezoresistive micro-electro-mechanical system (MEMS)-based silicon cantilever sensors for measuring target analytes (i.e., ultrafine particulate matters).
Andi Setiono, Maik Bertke, Wilson Ombati Nyang’au, Jiushuai Xu, Michael Fahrbach, Ina Kirsch, Erik Uhde, Alexander Deutschinger, Ernest J. Fantner, Christian H. Schwalb, Hutomo Suryo Wasisto, Erwin Peiner   +11 more
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STUDY ON THE KINETICS, HYDRODYNAMICS AND MASS TRANSFER OF THE PROCESS OF ZUCCHINI FRUITS SATURATION WITH SUCROSE FROM AN AQUEOUS SOLUTION

Harčova Nauka ì Tehnologìâ, 2023
Processes of sucrose diffusion inside plant fruits and their generalization require special attention, namely theoretical generalization of experimental data and organization of energy-saving production of candied fruits while preserving the quality of ...
I. Huzova, V. Atamanyuk
doaj   +1 more source