نتایج جستجو برای: multiple time scales

تعداد نتایج: 2579096  

Journal: :IEEE Transactions on Visualization and Computer Graphics 2021

Journal: :Statistics in Medicine 2021

As cancer patient survival improves, late effects from treatment are becoming the next clinical challenge. Chemotherapy and radiotherapy, for example, potentially increase risk of both morbidity mortality second malignancies cardiovascular disease. To provide clinically relevant population-level measures effects, it is importance to (1) simultaneously estimate risks mortality, (2) partition the...

Journal: :Computers & Structures 2021

Abstract Digital twin technology has a huge potential for widespread applications in different industrial sectors such as infrastructure, aerospace, and automotive. However, practical adoptions of this have been slower, mainly due to lack application-specific details. Here we focus on digital framework linear single-degree-of-freedom structural dynamic systems evolving two operational time scal...

Journal: :IEEE Transactions on Automatic Control 2023

A classical approach to design controllers for interconnected systems, is assume that the different subsystems operate at time scales, then simpler within each scale, and finally, certify stability of system via singular perturbation analysis. In this work, we propose an alternative also allows individual separately. However, instead requiring a sufficiently large time-scale separation, our con...

Journal: :Clinical psychological science 2022

There is a critical need for identifying time-sensitive and cost-effective markers of psychosis risk early in the illness course. One solution may lie affect dynamics, or fluctuations across time, which have been demonstrated to predict transitions psychopathology. Across three studies, current research first comprehensively investigate dynamics relation subthreshold positive symptoms (perceptu...

1999
Javier Gomez Andrew T. Campbell

For wireless channels, interference mitigation techniques are typically applied at the packet transmission level. In this paper, we present an adaptive-QOS framework that also responds to impairments over multiple time scales that are present at the ow/session level. Our framework is based on three di erent mechanisms that operate over distinct adaptation time scales. At the packet transmission...

Journal: :Physical review letters 2006
Aaron Fleet Darren Dale A R Woll Y Suzuki J D Brock

We grew SrTiO3 on SrTiO3(001) by pulsed laser deposition, using x-ray scattering to monitor the growth in real time. The time-resolved small-angle scattering exhibits a well-defined length scale associated with the spacing between unit-cell high surface features. This length scale imposes a discrete spectrum of Fourier components and rate constants upon the diffusion equation solution, evident ...

2003
Zheng-Ming Ge Chien-Cheng Chen

The brushless dc motor (BLDCM) with multi-time scales is an electric machine. By coupled BLDCM, it is discovered that chaotic routes of the uncoupled systems influence synchronous result of coupled identical and nonidentical chaotic systems. Another multi-time scales form, Hindmarsh–Rose (HR) neurons, when the chaotic parameter is selected only in the range of the period-doubling route to chaos...

2003
Aneta Stefanovska Andriy Bandrivskyy Peter V.E. McClintock

Modelling the cardiovascular system (CVS) presents a challenging and important problem. The CVS is a complex dynamical system that is vital to the function of the human organism, and it reflects numerous different states of health and disease. Its complexity lies in a combination of oscillatory modes spanning a wide frequency scale that can synchronize for short episodes of time, coupled with a...

2000
Hari Sundaram Shih-Fu Chang

In this paper we present an algorithm for audio scene segmentation. An audio scene is a semantically consistent sound segment that is characterized by a few dominant sources of sound. A scene change occurs when a majority of the sources present in the data change. Our segmentation framework has three parts: (a) A definition of an audio scene (b) multiple feature models that characterize the dom...

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