scholarly journals On learning with shift-invariant structures

2020 ◽  
Vol 99 ◽  
pp. 102654
Author(s):  
Cristian Rusu
Keyword(s):  
Invariant Structures

Disequilibrium and Divinity Salience as Invariant Structures in The Halal Executives’ Experience of Eudaimonia

2019 ◽  
Vol 5 (1) ◽  
pp. 109
Author(s):  
Jalilah Ahmad ◽  
Rosmimah Mohd. Roslin ◽  
Mohd Ali Bahari Abdul Kadir
Keyword(s):  
Data Analysis ◽  
Lived Experience ◽  
Status Quo ◽  
The Self ◽  
Phenomenological Method ◽  
Sustainable Practices ◽  
Muslim Population ◽  
Living Well ◽  
Hard Skills ◽  
Invariant Structures

The global Halal industry is large and continues to grow as the global Muslim population increases in size and dispersion. There are 1.84 billion Muslims today spread over 200 countries and is expected to increase to 2.2 billion by 2030. The industry will be worth USD6.4 trillion by the end of 2018 with more non-traditional players and emergent markets. The stakes are high with pressures to generate novel and sustainable practices. This goes beyond systems and hard skills as it needs to cut into the self – the person of virtues in virtuous acts, not because they “have to” but because it is the purpose of humankind or his telos - to be “living well” and “acting well” or eudaimonia. This study seek to explore Halal executives’ lived experience of “eudaimonia.”. Using Giorgi’s descriptive psychological phenomenological method for data analysis, the study elicits two distinct invariant structures – ‘disequilibrium in status quo’ and ‘divinity salience’.

scholarly journals Invariant structures on Lie groups

2020 ◽  
Vol 12 (2) ◽  
pp. 141-148
Author(s):  
Javier Pérez Álvarez ◽  
Keyword(s):  
Lie Groups ◽  
Invariant Structures

Reduction of Vibrations in Complex Structures With Viscoelastic Neutralizers: A Generalized Approach

1995 ◽  
Author(s):  
J. J. de Espíndola ◽  
C. A. Bavastri
Keyword(s):  
General Procedure ◽  
Linear Optimization ◽  
Sound Radiation ◽  
Complex Structures ◽  
Frequency Range ◽  
Optimization Scheme ◽  
Modal Theory ◽  
Equivalent Quantity ◽  
Invariant Structures ◽  
Time Invariant

Abstract A general procedure for the optimization of the parameters of dynamic neutralizes is presented. It can be applied to the minimization of the vibration response and sound radiation of linear strutures subjected to excitations in a specified frequency range. Modal theory and generalized equivalent quantity concept for the neutralizers, introduced by Espíndola and Silva (1992), are applied to a non-linear optimization scheme. The proposed procedure can be applied to relaxed and time invariant structures. It is not dependent on the struture complexity and the degree of discretization adopted. In such conditions, a significant reduction in computing work is achieved, if compared with the more traditional methods.

Reduction of Vibrations in Complex Structures With Viscoelastic Neutralizers: A Generalized Approach and a Physical Realization

1997 ◽  
Author(s):  
J. J. de Espíndola ◽  
C. A. Bavastri
Keyword(s):  
General Procedure ◽  
Linear Optimization ◽  
Complex Structures ◽  
Frequency Range ◽  
Optimization Scheme ◽  
Modal Theory ◽  
Equivalent Quantity ◽  
Invariant Structures ◽  
Structure Complexity ◽  
Time Invariant

Abstract A general procedure for the optimization of the parameters of dynamic neutralizers is reviewed. It can be applied to the minimization of the vibration response and sound radiation of linear structures subjected to excitations in a specified frequency range. Modal theory and generalized equivalent quantity concept for the neutralizers, introduced by Espíndola and Silva (1992), as applied to a non-linear optimization scheme, are also reviewed for clarity. That proposed procedure can be applied to relaxed and time invariant structures. It is not dependent on the structure complexity and the degree of discretization adopted. In such conditions, a significant reduction in computing work is achieved, if compared with the more traditional methods. Experimental results are compared with numerical ones.

scholarly journals Classifying invariant structures of step traces

2019 ◽  
Vol 104 ◽  
pp. 297-322 ◽  
Author(s):  
Ryszard Janicki ◽  
Jetty Kleijn ◽  
Maciej Koutny ◽  
Łukasz Mikulski
Keyword(s):  
Invariant Structures

A Multispectral and Multiscale View of the Sun

2011 ◽  
pp. 191-206
Author(s):  
T. Dudok de Wit
Keyword(s):  
Feature Recognition ◽  
Multispectral Images ◽  
Technological Systems ◽  
Scale Invariant ◽  
Terrestrial Environment ◽  
Image Tracking ◽  
Invariant Structures ◽  
Novel Processing ◽  
Processing Techniques ◽  
The Impact

The emergence of a new discipline called space weather, which aims at understanding and predicting the impact of solar activity on the terrestrial environment and on technological systems, has led to a growing need for analysing solar images in real time. The rapidly growing volume of solar images, however, makes it increasingly impractical to process them for scientific purposes. This situation has prompted the development of novel processing techniques for doing feature recognition, image tracking, knowledge extraction, et cetera. This chapter focuses on two particular concepts and lists some of their applications. The first one is Blind Source Separation (BSS), which has great potential for condensing the information that is contained in multispectral images. The second one is multiscale (multiresolution, or wavelet) analysis, which is particularly well suited for capturing scale-invariant structures in solar images.

scholarly journals Transient Invariant and Quasi-Invariant Structures in an Example of an Aperiodically Time Dependent Fluid Flow

2018 ◽  
Vol 28 (05) ◽  
pp. 1830015
Author(s):  
Alessandro Fortunati ◽  
Stephen Wiggins
Keyword(s):  
Fluid Transport ◽  
Kam Tori ◽  
Integrable Hamiltonian Systems ◽  
Rigorous Results ◽  
Asymptotically Flat ◽  
Invariant Structures ◽  
Transient Feature ◽  
Real Analytic ◽  
Nearly Integrable Hamiltonian Systems

Starting from the concept of invariant KAM tori for nearly-integrable Hamiltonian systems with periodic or quasi-periodic nonautonomous perturbation, the paper analyzes the “analogue” of this class of invariant objects when the dependence on time is aperiodic. The investigation is carried out in a model motivated by the problem of a traveling wave in a channel over a smooth, quasi- and asymptotically flat (from which the “transient” feature) bathymetry, representing a case in which the described structures play the role of barriers to fluid transport in phase space. The paper provides computational evidence for the existence of transient structures also for “large” values of the perturbation size, as a complement to the rigorous results already proven by the first author for real-analytic bathymetry functions.

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