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Article
Publication date: 1 March 1997

D.D. Bainov and I.M. Stamova

Investigates the global stability of the zero solution of an impulsive system of differential‐difference equations with variable impulsive perturbations. By means of piecewise…

635

Abstract

Investigates the global stability of the zero solution of an impulsive system of differential‐difference equations with variable impulsive perturbations. By means of piecewise continuous functions which are analogues of Lyapunov’s functions, and of the comparison principle, sufficient conditions for global stability of the zero solution of the systems considered are found.

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COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 16 no. 1
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 10 October 2018

Namik Yener and Ali Bekir Yildiz

This paper aims to present how to use the difference equations for analysis of flyback converter circuit.

227

Abstract

Purpose

This paper aims to present how to use the difference equations for analysis of flyback converter circuit.

Design/methodology/approach

Switching circuits have variable structural topologies. In every switched-mode, they have different dynamics and different equations. First, the exact equivalent circuit of flyback converter, then, set of difference equations are obtained. The flyback converter has a nonlinear structure; however, the presented technique allows the circuit equations to be linear. The transient-state and steady-state analysis of flyback converter, one of popular switching circuits, are carried out by using difference-equations.

Findings

The proposed analysis method does not contain any numerical approximation and the results are in the form of exact solution. Another superiority of the method is that the desired instantaneous values can be obtained directly, the simulation does not need to be started from the beginning. Numerical results agree well with the theoretical results of flyback converter. The simulation results obtained by using the proposed method and Matlab-based results are compared.

Originality/value

This paper contributes a different mathematical background for analysis of switching converters to the literature.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 38 no. 1
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 4 November 2024

Jared Scott Cook and Jack Cook

The purpose of this paper is to define artificial intelligence (AI) and examine its history, positive and negative impacts, ethical and social implications and implementation…

51

Abstract

Purpose

The purpose of this paper is to define artificial intelligence (AI) and examine its history, positive and negative impacts, ethical and social implications and implementation within management education. This paper offers various suggestions for the use of AI, as well as context surrounding the current AI landscape.

Design/methodology/approach

The paper uses a narrative review (Sylvester et al., 2013).

Findings

This paper identifies several areas of AI innovation, including AI tutoring systems, feedback systems for student papers, utilization of AI for innovative lesson plans and the use of AI to predict potential student dropout from a course or institution. In addition, there are significant concerns regarding the lack of ethical guidelines with current AI.

Practical implications

Practical implications include the ability to immediately use certain AI tools to enhance lesson plans as well as enhance student work using AI as a tool.

Originality/value

This paper was originally created as a conference presentation and presented at the society for advancement of management (SAM) International Business Conference before being reworked to be submitted to the journal. All content in this paper is original in their creation.

Details

SAM Advanced Management Journal, vol. 89 no. 4
Type: Research Article
ISSN: 2996-6078

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Article
Publication date: 4 February 2025

Bouazza Zoubida, Mohammed Said Souid, Hatira Günerhan and Hadi Rezazadeh

The purpose of this paper is to investigate the existence, uniqueness and stability of solutions to a class of Riemann–Liouville fractional differential equations with…

18

Abstract

Purpose

The purpose of this paper is to investigate the existence, uniqueness and stability of solutions to a class of Riemann–Liouville fractional differential equations with anti-periodic boundary conditions of variable order (R-LFDEAPBCVO). The study utilizes standard fixed point theorems (FiPoTh) to establish the existence and uniqueness of solutions. Additionally, the Ulam-Hyers-Rassias (Ul-HyRa) stability of the considered problem is examined. The obtained results are supported by an illustrative example. This research contributes to the understanding of fractional differential equations with variable order and anti-periodic boundary conditions, providing valuable insights for further studies in this field.

Design/methodology/approach

This paper (1) defines the Riemann–Liouville fractional differential equations with anti-periodic boundary conditions of variable order (R-LFDEAPBCVO); (2) discusses the existence and uniqueness of solutions to these equations using standard FiPoTh; (3) investigates the stability of the considered problem using the Ul-HyRa stability concept (Ul-HyRa); (4) provides a detailed explanation of the design and methodology used to obtain the results and (5) supports the obtained results with a relevant example.

Findings

The authors confirm that no funds, grants or any other form of financial support were received during the preparation of this manuscript.

Originality/value

The originality/value of our paper lies in its contribution to the field of fractional differential equations. Specifically, we address the existence, uniqueness and stability of solutions to a class of Riemann–Liouville fractional differential equations with anti-periodic boundary conditions of variable order. By utilizing standard FiPoTh and investigating Ul-HyRa stability, we provide novel insights into this problem. The results obtained are supported by an example, further enhancing the credibility and applicability of your findings. Overall, our paper adds to the existing knowledge and understanding of Riemann–Liouville fractional differential equations with anti-periodic boundary conditions, making it valuable to the scientific community.

Details

Engineering Computations, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 4 October 2019

Aondoyila Kuhe and Danladi Yusufu Bisu

This paper aims to present a systematic scoping review of the influences of some situational factors on the energy consumption behaviour of households. Household’s energy choice…

551

Abstract

Purpose

This paper aims to present a systematic scoping review of the influences of some situational factors on the energy consumption behaviour of households. Household’s energy choice and manner of utilization define its energy consumption behaviour; it is a key factor in determining the energy efficiency of households. Despite the energy-efficient technological innovations and awareness on environmental/health implications of using certain energy sources and technologies, households still use inefficient, traditional energy sources and technologies. Some researchers have attempted to use economic and psychological theories to explain the situation with the hope of achieving a change in behaviour towards sustainable energy utilization but to no avail. This is because the theories fail to consider situations beyond individuals or households. A clear understanding of situational factors and how they influence household energy behaviour will provide information that will aid deeper research and policy formulation towards sustainable energy behaviour of households.

Design/methodology/approach

A scoping systematic review of available literature regarding real-life cases in both developed and developing countries was carried out to determine the possibility of situational factors affecting household energy choices and utilization.

Findings

The result of the review showed that situational factors have a significant influence on household’s energy consumption. The main policy implications observed are the need for laws that will encourage energy-saving renovations in houses, make compulsory the provision of recreational facilities in residential areas to reduce in-home energy consumption. The need for increased access to electricity and other efficient energy sources and cooking technologies has also been observed. Intensive awareness campaigns are required to disabuse the minds of people about cultural issues that mitigate improved cook stove adoption.

Originality/value

The paper provides information on the influence of some of the factors, which affect energy consumption in households, which fluctuate depending on the current situation of the consumer and are time-bound (situational factors). The information will help policymakers and regulators to understand the influence of situational factors on household energy consumption, thereby enabling them to make policies that will enhance sustainable energy consumption.

Details

International Journal of Energy Sector Management, vol. 14 no. 2
Type: Research Article
ISSN: 1750-6220

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Article
Publication date: 12 April 2013

Līga Ozoliņa and Marika Rošā

The purpose of this paper is to recognize whether consumers on long time perspective have an influence on the increase of energy efficiency in manufacturing industries.

1181

Abstract

Purpose

The purpose of this paper is to recognize whether consumers on long time perspective have an influence on the increase of energy efficiency in manufacturing industries.

Design/methodology/approach

Literature review, online survey, in‐depth interviews.

Findings

Although the connection between consumer and energy efficiency promotion in manufacturing companies is currently weak, the growing trend to purchase “green” products may have an influence on companies’ decisions regarding energy efficiency issues. Furthermore, this would be necessary to take into account in development of new state energy efficiency policy instruments for industry.

Practical implications

The results of this study can be taken into consideration in the development of new energy efficiency policy instruments for the industrial sector.

Originality/value

The paper highlights the importance of consumers purchasing behavior and its possible influence on energy efficiency increase in manufacturing industry.

Details

Management of Environmental Quality: An International Journal, vol. 24 no. 3
Type: Research Article
ISSN: 1477-7835

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