Results 61 to 70 of about 7,955,705 (309)

Computation of transfer function matrices of periodic systems [PDF]

open access: yes, 2002
We present a numerical approach to evaluate the transfer function matrices of a periodic system corresponding to lifted state-space representations as constant systems.
A. Varga, Varga, Andras
core   +1 more source

Stability of Slightly Wrinkled Plates Interacting with an Elastic Subsoil

open access: yesEngineering Transactions, 2015
The first aim of the contribution is to formulate an engineering theory describing the linear stability of periodically waved shallow shell-like structures (slightly wrinkled plates, cf. Fig. 1) interacting with a Winkler foundation.
B. Michalak
doaj   +1 more source

Representation of Sickle Cell Disease Patients in Pediatric and Adult Care: What We Discovered Using Informatics for Integrating Biology and the Bedside (i2b2) Data

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Transitioning from pediatric to adult care is a high‐risk period for individuals with sickle cell disease (SCD). An initial observation at one academic medical center suggested a sex‐based disparity in clinic populations, prompting a national investigation.
Laurie J. Duckworth   +5 more
wiley   +1 more source

Strongly stable algorithm for computing periodic system zeros [PDF]

open access: yes, 2003
We propose a computationally efficient and numerically reliable algorithm to compute the finite zeros of a linear discrete-time periodic system. The zeros are defined in terms of the transfer-function matrix corresponding to an equivalent lifted time ...
Varga, Andras
core  

Structure of Fourier exponents of almost periodic functions and periodicity of almost periodic functions [PDF]

open access: yes, 1996
summary:The paper deals with almost periodic functions which are limits of sequences of continuous periodic functions, and determines the structure of their Fourier exponents and their ranges.
Fischer, Alexandr
core   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

Computation of H-infinity norm of linear discrete-time periodic systems [PDF]

open access: yes, 2006
We propose an efficient an numerically reliable procedure for the computation of H-infinity norm of discrete-time linear periodic systems. The new procedure is general being applicable to both standard as well as descriptor periodic systems with time ...
Varga, Andreas
core  

THE PERIODIC SYSTEM AND THE STRUCTURE OF ATOMS [PDF]

open access: yesSchool Science and Mathematics, 1917
n ...
openaire   +2 more sources

Systematic Control of Primary and Secondary Structure Periods in Four-Beam Direct Laser Interference Patterning

open access: yesApplied Sciences
Four-beam Direct Laser Interference Patterning (DLIP) enables the fabrication of periodic surface micro- or nanostructures with various geometrical features.
Kehkashan Alam   +3 more
doaj   +1 more source

RETRACTED: Application of periodic structural wave impeding block for vibration isolation in foundation

open access: yesFrontiers in Materials, 2023
The wave impeding board (WIB) is frequently integrated beneath dynamic machinery, tracks, and subgrades to counteract vibrations emanating from artificial sources.
Yongqiang Ling   +5 more
doaj   +1 more source

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