Results 81 to 90 of about 22,371,115 (244)

Controllability Analysis of Linear Discrete Time Systems with Time Delay in State

open access: yesAbstract and Applied Analysis, 2012
The controllability issues for linear discrete-time systems with delay in state are addressed. By introducing a new concept, the minimum controllability realization index (MinCRI), the characteristic of controllability is revealed.
Hong Shi, Guangming Xie, Wenguang Luo
doaj   +1 more source

On the Maximal Output Admissible Set for a Class of Bilinear Discrete-time Systems. [PDF]

open access: yesInt J Control Autom Syst, 2021
Benfatah Y   +3 more
europepmc   +1 more source

Spatial and Volumetric Characteristics of Glioblastoma: Associations With Clinical Presentation and Survival

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to comprehensively analyze how regional tumor and edema characteristics are associated with clinical presentations and survival outcomes in a large cohort of glioblastoma patients. Methods Patients with IDH‐wildtype glioblastoma who received brain MRI from 2010 to 2023 were included.
Daniel J. Zhou   +16 more
wiley   +1 more source

Positivity and stability of fractional descriptor time–varying discrete–time linear systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2016
The Weierstrass–Kronecker theorem on the decomposition of the regular pencil is extended to fractional descriptor time-varying discrete-time linear systems. A method for computing solutions of fractional systems is proposed.
Kaczorek Tadeusz
doaj   +1 more source

Digital Cognitive Testing in Mitochondrial Disease: Validity and Challenges for Clinical Trial Use

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Primary mitochondrial disease is a group of genetic disorders caused by pathogenic variants in nuclear or mitochondrial DNA, often resulting in progressive neurodegeneration and cognitive decline. Current management is primarily supportive, though recent research offers hope for disease‐modifying treatments in the future.
Oksana Pogoryelova   +9 more
wiley   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

Milne‐Hamming discretized zeroing neural networks for solving time‐varying linear systems

open access: yesElectronics Letters
Time‐varying linear systems (TVLS) is a vital mathematical problem in many engineering fields. In this letter, a Milne‐Hamming discretized zeroing neural networks (MHDZNN) is presented to solve the TVLS, where high accurate convergence is got by combing ...
Xi Chen   +3 more
doaj   +1 more source

The General Inner-Outer Factorization Problem for Discrete-Time Systems [PDF]

open access: yes, 1999
In this paper we give a theoretical and a computational solution to the most general inner-outer factorization problem formulated for a discrete-time system G.
A. Varga   +3 more
core   +1 more source

Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay   +15 more
wiley   +1 more source

Self-synchronization of Thomson self-oscillatory systems in discrete time

open access: yesФизика волновых процессов и радиотехнические системы, 2015
The effect arising in discrete time at interaction of self-oscillations with higher harmonics of the main frequency is described. It is shown that it is similar to effect of capture of the frequency (synchronization) of self-oscillations by an external ...
V.V. Zaitsev, O.V. Zaitsev, I.V. Stulov
doaj  

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