On the Implementation of a Continuous Controller Via a Discrete Valued Controller

1992 ◽  
Vol 114 (3) ◽  
pp. 352-358 ◽  
Author(s):  
R. M. DeSantis
Keyword(s):  
Experimental Study ◽  
Systems Approach ◽  
Variable Structure ◽  
Feedback System ◽  
Operating Conditions ◽  
Theoretical Development ◽  
Variable Structure Systems ◽  
Range Of Values ◽  
Discrete Controller ◽  
Continuous Range

A procedure for implementing a continuous controller, the output of which may vary within a continuous range of values, by means of a discrete controller, of which the output may only be given a discrete set of values, is presented. The theoretical development is based on the variable structure systems approach and is complemented with an analytical and experimental study of a position servomechanism with an elastic transmission. Relevant properties of the ensuing feedback system are discussed under both nominal and perturbed operating conditions. Preliminary simulation and experimental results suggest the procedure to be reliable, easy to implement and practically feasible.

Dynamical variable structure systems approach to switched capacitor circuit models

1991 ◽  
Vol 22 (8) ◽  
pp. 1477-1494
Author(s):  
HEBERTT SIRA-RAMIREZ ◽  
MARCO TULIO PRADA-RIZZO ◽  
PABLO LISCHINSKY-ARENAS
Keyword(s):  
Systems Approach ◽  
Variable Structure ◽  
Dynamical Variable ◽  
Switched Capacitor ◽  
Variable Structure Systems

Design of self‐oscillating resonant converters based on a variable structure systems approach

2016 ◽  
Vol 9 (1) ◽  
pp. 111-119 ◽  
Author(s):  
Ricardo Bonache‐Samaniego ◽  
Carlos Olalla ◽  
Luís Martínez‐Salamero ◽  
Hugo Valderrama‐Blavi
Keyword(s):  
Systems Approach ◽  
Variable Structure ◽  
Resonant Converters ◽  
Variable Structure Systems

scholarly journals Using Systems Thinking to Improve Tourism and Hospitality Research Quality and Relevance: A Critical Review and Conceptual Analysis

2021 ◽  
Vol 2 (1) ◽  
pp. 153-172
Author(s):  
Gianna Moscardo
Keyword(s):  
Systems Thinking ◽  
Critical Review ◽  
Systems Approach ◽  
Problem Area ◽  
Theoretical Development ◽  
Research Quality ◽  
Theoretical Understanding ◽  
Theoretical Concepts ◽  
Tourism And Hospitality ◽  
Published Research

This paper argues that that much published tourism and hospitality research has had little influence on tourism or hospitality practice especially with regard to the problems of sustainability because of a failure to use systems thinking to guide research questions and approaches. This critical review and conceptual paper demonstrates how a systems thinking approach could be used to improve both the relevance of, and theoretical development in, tourism and hospitality research in the area of sustainability. This paper reviewed recent published research into tourism’s social impacts to demonstrate the power of taking a systems approach to map out the research problem area. It then critically reviewed the use of concepts from psychology in published research into guest engagement in sustainability programs in hospitality businesses to demonstrate the value of systems thinking for organising theoretical concepts. In both of the reviewed areas the overwhelming conclusion was that the majority of the research lacked both practical relevance and was based on inappropriate or deficient theoretical understanding.

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