Iskanje po katalogu digitalne knjižnice

Opis: Discrete systems can offer advantages over continuous ones in certain contexts, particularly in terms of simplicity and reduced computational costs, though this may vary depending on the specific application and requirements. Recently, there has been growing interest in using fractional differences to enhance discrete models' flexibility and incorporate memory effects. This paper examines the dynamics of the discrete memristive Hindmarsh-Rose model by integrating fractional-order differences. Our results highlight the complex dynamics of the fractional-order model, revealing that chaotic firing depends on both the fractional-order and magnetic strength. Notably, certain magnetic strengths induce a transition from periodic firing in the integer-order model to chaotic behavior in the fractional-order model. Additionally, we explore the dynamics of two coupled discrete systems, finding that electrical coupling leads to the synchronization of chaotic dynamics, while chemical coupling ultimately results in a quiescent state.
Ključne besede: memristive Hindmarsh-Rose model, discrete systems, fractional-order differences
Objavljeno v DKUM: 06.05.2025; Ogledov: 0; Prenosov: 0
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Opis: The compatibility of seal materials with the working fluid is crucial for the flawless, energysaving, environmentally sustainable, and safe operation of any technical system. This is especially true for hydraulic systems operating under high operating pressure. The problem of materials compatibility comes into play when either a new type of seal material or a new type of fluid comes into use. The paper discusses the research findings regarding material compatibility testing of new high-tech ionic hydraulic fluids with commonly used seal materials. Due to the completely different chemical composition of these new fluids compared to the classical mineral-based oil, for these fluids, there are no standardized testing procedures. In these cases, we can only lean on the Standards that apply to classical fluids, which can lead to incorrect results. In the forefront of the paper is the discrepancy between the results obtained by the standardized test, and the test under real operating conditions. FKM, an excellent material for seals, proved to be the most suitable in the case of using ionic hydraulic fluid, according to a standardized test. However, it failed in the comparison test under real operating conditions, as the cylinder leaked. NBR seals proved to be a better solution.
Ključne besede: ionic hydraulic fluids, seal material compatibility, static and dynamic test, comparison of results, differences, test suitability
Objavljeno v DKUM: 10.09.2024; Ogledov: 59; Prenosov: 33
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Opis: The present study examined how time pressure at work is transmitted to the home domain and how it affects individuals’ (spillover) as well as their partners’ relationship satisfaction (crossover). We examined the role of work-related spousal support seeking and proposed that it serves as a mediator of the spillover as well as the crossover process. We further explored whether the proposed spillover-crossover process is gender-contingent. Using a sample of 308 dual-earner couples, we found support for a positive link between time pressure at work and spousal support seeking. As hypothesized, spousal support seeking served also as a crossover mechanism. However, distinct spillover and crossover processes were found for men and women. These findings not only point to a new spillover and crossover mechanism but also highlight gender-specific patterns in the role of support seeking. As this coping strategy is feasible when job stressors are high, it should be considered a part of stress management trainings and organizational practices.
Ključne besede: spillover, crossover, time pressure, dual-earner couples, work-related spousal support, relationship satisfaction, gender differences
Objavljeno v DKUM: 13.07.2023; Ogledov: 452; Prenosov: 66
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Opis: Pressures in the contemporary marketing environment are getting bigger and companies and marketers are required to know consumers and their purchase and information behaviour. In this article we studied the behaviour of consumers and the factors of purchase and information behaviour of young consumers when choosing clothes. We found out about the meaning of individual clothing characteristics having impact on the purchase decision making (price, trademark, fitting of clothing, design, quality, etc.). Consumers receive and look for information at different sources (radio commercials, TV commercials and shows, fashion magazines, catalogue sales, social networks, friends and acquaintances, etc.). With the empiric research we wanted to find out to what measure individual sources influence the purchase decision of an individual. We studied young people aged from 15 to 24 in the countries of the EU (Slovenia, Austria and Germany) and the United States of America. We especially focused on characteristic differences. Knowing intercultural differences is important for global companies of the clothing industry for forming their marketing strategies. On the sample of 440 young people who took part in the survey we found out that intercultural differences exist regarding the influence of individual information sources and regarding the factors of purchase decision making. Considering the stated we propose companies operating in global markets on both continents to prepare differentiated marketing strategies.
Ključne besede: consumer behaviour, clothing, marketing strategies, intercultural differences
Objavljeno v DKUM: 23.01.2018; Ogledov: 1560; Prenosov: 391
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Opis: In this article we pay attention to the violence which, due to the fear of social stigma, could be hidden from the public eye for a long time but could have serious health consequences for the individual, family, and society-physical and psychological forms of domestic violence and abuse in male-female intimate relationship. Besides its nature and extent data in general population, we review also the surveys data about its theoretical basis, its risk factors and possible effects on mental and physical health, not only on in conflicts involved partners, but also on family as a whole, and especially on the children that growing up in such a problematic domestic circumstances.
Ključne besede: domestic violence, perpetrator, victim, gender differences
Objavljeno v DKUM: 08.08.2017; Ogledov: 2069; Prenosov: 368
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