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Found 6383 publications

Prediction of binary azeotropes of refrigerant systems through COSMO-based models

Zhen Song Xinyan Liu Yuqiu Chen Peilin Cao Yiqiang Guan Rafiqul Gani

Publication Name: Aiche Journal

Publication Date: 2026-04-01

Volume: 72

Issue: 4

Page Range: Unknown

Description:

Current azeotropic refrigerant R410A has the disadvantage of a high GWP. Thus, a reliable predictive model is necessary to be developed for screening of the alternative refrigerant mixtures with low boiling point. In this work, a database of binary refrigerant azeotropic mixtures is identified by experiments and used to verify the feasibility of using COSMO-based models to predict the VLE of binary refrigerant mixtures. It contains 1766 compounds, out of which 306 are known as refrigerants. Sixty-nine binary systems are then selected after excluding the systems containing water and those with incomplete and azeotropic temperatures exceeding 325 K. The COSMO-based models were tested and found to predict the azeotropic points qualitatively for the binary refrigerant systems. Thus, all the VLE data of binary refrigerant systems in the database can be predicted through the combination of COSMO-SAC and COSMO-RS models. Next, three binary azeotropic refrigerant mixtures that could be a potential replacement for R410A were identified and their performance verified through simulation of the refrigeration process.

Open Access: Yes

DOI: 10.1002/aic.70232

Key Drivers of Sustainable Marketing in the Chinese Hotel Industry: The Mediating Role of Big Data Applications and Marketing Innovation

Md Billal Hossain Yang Li Haolang Qin

Publication Name: Sustainability Switzerland

Publication Date: 2025-05-01

Volume: 17

Issue: 10

Page Range: Unknown

Description:

The service industry in China faces significant challenges in achieving environmental sustainability, with sustainable marketing emerging as a critical solution. This study aims to develop a comprehensive model combining the Stimulus–Organism–Response (SOR) theory and the Technology Acceptance Model (TAM) theory to analyze the mediating roles of big data applications and marketing innovation in fostering sustainable marketing practices. Using Partial Least Squares Structural Equation Modeling (PLS-SEM) on a sample of 319 service industry professionals in China, this study examines key factors such as environmental responsibility, consumer engagement, and organizational capabilities. The findings reveal that environmental responsibility and consumer engagement have a significant positive impact on sustainable marketing practices, with big data applications and marketing innovation serving as crucial mediators. This research provides valuable insights for service managers in China to align technological advancements and innovative approaches with sustainability objectives. Future research is encouraged to explore other industry-specific factors and extend the findings to different regions.

Open Access: Yes

DOI: 10.3390/su17104425

Cultural Fault Lines and Development Trajectories in East-Central Europe

Benjámin Csaba Németh

Publication Name: Engineering Perspective

Publication Date: 2025-12-28

Volume: 5

Issue: Special Issue

Page Range: 37-44

Description:

This paper explores the divergent developmental trajectories of East-Central European countries by examining the cultural fault lines between Western (European) and Orthodox (Slavic/Russian) civilizations. The study assesses how these civilizational backgrounds have influenced economic performance, governance structures, social trust, labor market dynamics, and institutional development since the fall of communism. The analysis uses a comparative cross-country design based on secondary data from international sources. Countries are classified according to the cultural models of Huntington, De Blij & Muller, and Fellmann et al. A set of macroeconomic and societal indicators—including GDP per capita, Global Innovation Index rankings, labor force characteristics, and trust levels—is examined to identify patterns of divergence and convergence across cultural blocs. The results show that Western-aligned countries generally perform better economically and exhibit higher levels of social trust and institutional stability. At the same time, the relationship between culture and development is not deterministic. Several Orthodox countries demonstrate notable progress, indicating that integration dynamics, policy choices, and governance quality also play significant roles. The research offers an interdisciplinary perspective that connects cultural theory with observable economic and political outcomes. It contributes to a deeper understanding of how historical-cultural legacies shape developmental potential in East-Central Europe and provides insights for regional policy design, institutional reform, and future growth strategies.

Open Access: Yes

DOI: 10.64808/engineeringperspective.1789934

ANALYSIS OF WELL-BEING AT WORK AND WORKING FROM HOME BASED ON THE RESULTS OF A SURVEY IN SLOVAKIA

Péter Karácsony Angelika Czókolyová Monika Imreh-Toth Csaba Vandor

Publication Name: Economics and Sociology

Publication Date: 2025-01-01

Volume: 18

Issue: 3

Page Range: 160-174

Description:

The coronavirus outbreak at the end of 2019 can be cited as a trigger for several drastic consequences. In those years and since, the pandemic brought many changes for which the world was not prepared. The spread and increased prevalence of home-based work is one such consequence. The study of the relationship between working from home and well-being at work is one of the most researched areas in the field of economic psychology today. The main objective of this study was to investigate well-being at work in a Slovak sample and to explore its relationship with working from home. The research methodology was implemented in the form of an online questionnaire at the end of 2023. A total of 772 people participated in the survey. According to the research hypothesis, there is a significant correlation between the form of working from home and a higher average level of well-being at work. The results obtained confirmed the hypothesis that working from home has a positive impact on well-being at work. Furthermore, the results highlight the main risks of work from home in terms of 'home comfort' and 'work-life balance'. In conclusion, the research has shown both the advantages and disadvantages of working from home, and managers should strive to ensure that the well-being of employees is maximized in order to work effectively.

Open Access: Yes

DOI: 10.14254/2071-789X.2025/18-3/9

METAPHORS IN TOURISM PROMOTION: A CASE STUDY OF A THAI VILLAGE AND THE BEEHIVE CONCEPT

Janka Sára Tóth Anikó Makkos Chin Ling Tsai

Publication Name: Geojournal of Tourism and Geosites

Publication Date: 2025-01-01

Volume: 60

Issue: Unknown

Page Range: 1128-1135

Description:

Metaphors are effective tools in tourism promotion, simplifying complex local features for tourists to appreciate. Sustainable tourism, by encouraging responsible habits, allows travelers to engage in environmental conservation while immersing themselves in local cultures. In this context, the primary aim of the research was to seek ways of promoting the unique features of Ban Nong Bua, a Thai village, while addressing global sustainability issues. A further aim was to develop educational material that would make sustainability attractive to local young children and familiarize them with local sustainability practices. During an 8-day stay, a multicultural team conducted action research through observations, interviews and interactions with local people with a focus on sustainable livelihood and tourism promotion. The fieldwork was complemented by regular brainstorming sessions, during which the concepts and plans that led to the final research product were developed based on the material collected and personal experience. The result of the research is the beehive metaphor as a conceptual framework that highlights the harmony and sustainable practices of the local community. The further result of the research is the creation of a booklet for both tourists and local children. On one hand, for tourists, the booklet provides an engaging introduction to the seaside village of Ban Nong Bua, enhancing its appeal as a sustainable destination. It is a complex metaphor that represents the way of life of the inhabitants of the settlement on several levels, such as the close relationship with water, the use of local resources, the division of labor, the high degree of social organization, cohesion and connectedness, or dancing as a specific manifestation of communication. Bees can also be seen as a symbol of sustainability. On the other hand, for local children, it serves as an English language educational tool, fostering an appreciation of sustainable practices through an interactive format. Although the short-term impact of the booklet cannot be measured, the research illustrates how tools such as metaphors can achieve multiple goals in sustainable tourism and sustainability education. The research promotes cross-cultural understanding, supports community sustainability and demonstrates the value of metaphor in tourism promotion. Future research could further explore the use of metaphors in tourism marketing and sustainability education.

Open Access: Yes

DOI: 10.30892/gtg.602spl10-1486

Psychometric Validation of the Modified, Short Version of the Problematic Pornography Consumption Scale in Serbian

Beáta Bőthe Aleksandar Vujić Marija Volarov Nikolina Kuruzović Slavica Adamović Zdravković Attila Szabo

Publication Name: Sexual Health and Compulsivity

Publication Date: 2025-01-01

Volume: 32

Issue: 2

Page Range: 105-128

Description:

Pornography is used worldwide, and 3% of individuals may experience problematic pornography use (PPU, i.e. poorly controlled use resulting in significant distress and negative consequences). Therefore, instruments gauging PPU are needed in nation-specific languages. This study aimed to validate a modified version of the Problematic Pornography Consumption Scale-6 (PPCS-6) in the Serbian language among 1413 adults (52.9% males) aged from 18 to 54 (Mage = 24.96, SD = 4.46). Exploratory factor analysis on the sample’s random half yielded a single factor explaining 43% of the total variance. Confirmatory factor analysis on the sample’s other half revealed an acceptable model fit. Internal consistency (Cronbach’s alpha) was acceptable. The scale exhibited configural and partial metric invariance across genders and convergent validity. Latent profile analysis identified that 8.1% of the participants were at risk of experiencing PPU. In comparison, this value was 9.6% based on a calculated cutoff score (≥ 19) with acceptable values (.69 and.96) of sensitivity and specificity. To conclude, the Serbian modified version of the PPCS-6 appears to be a valid and reliable scale for screening PPU.

Open Access: Yes

DOI: 10.1080/26929953.2024.2448110

Probability-based Vendor Selection Model for the Hungarian Automotive Supply Network

Istvan A. Harmati Akos Domotorfi Zoltan Andras Nagy

Publication Name: Periodica Polytechnica Transportation Engineering

Publication Date: 2022-01-01

Volume: 50

Issue: 2

Page Range: 216-222

Description:

The aim of this paper is to investigate the structure of the Hungarian automotive supply network and provide a possible solution that mathematically describes the connections between the interested parties. In the study an approximate model is introduced to determine the links between hubs (car manufacturers), nodes (Tier1 suppliers) and edges, combining probability random graph and scale free network theory. During the simulation some main drivers were applied for selection purposes, such as location, turnover, product profile. As a result of the study a potential tool has been designed to support decision-making.

Open Access: Yes

DOI: 10.3311/PPtr.17966

Main aspects of epigenetics of gestational and female genital tumors

Vilmos Fülöp Kornél Lakatos László Kalmár Tamás Arányi György Végh

Publication Name: Orvosi Hetilap

Publication Date: 2025-12-28

Volume: 166

Issue: 52

Page Range: 2043-2054

Description:

The genotype of our cells is almost the same for all cells in our body, but due to epigenetic effects, their phenotype can show significant differences. Epigenetics is a relatively new field of molecular biology that deals with the changes affecting the heritable phenotype, gene expression and gene activity in addition to the given genotype. The gene expression of immune and tumor cells is regulated by epigenetic processes. These processes can enhance the immune system evasion mechanisms of various tumor cells, while the results of other processes can actually help the immune system function. Our paper explores the epigenetic aspects of gynecological tumors through a thorough review of the Hungarian and international literature, with particular attention to the tumor processes of the cervix, uterus, ovary and breast. It also affects gestational tumors. It discusses the epigenetics of endometriosis, which does not belong to the group of classic tumor diseases, but in terms of its pathomechanism shows many similarities with other tumors. Finally, the paper discusses new findings in epigenetic medicine and therapy. Orv Hetil. 2025; 166(52): 2043–2054.

Open Access: Yes

DOI: 10.1556/650.2025.33442

Combination and interworking of four modelling methods for infocommunications and business process systems

László Muka G. Lencse

Publication Name: 5th International Industrial Simulation Conference 2007 Isc 2007

Publication Date: 2007-01-01

Volume: Unknown

Issue: Unknown

Page Range: 350-354

Description:

This paper describes how we can use four modelling methods together. We model Information and Communication Technology (ICT) systems and Business Process (BP) systems. The aim of the modelling is to experiment with the models, that is, simulation. Two of the methods are the detailed modelling of the ICT and of the BP systems, as we usually do that for discrete event simulation. The other two methods are those that enable us to make rapid performance analysis of these systems, namely Traffic-Flow Analysis (TEA) for ICT systems and Entity Flow-phase Analysis (EFA) for BP systems. The solutions for the combination and interworking of these methods are described.

Open Access: Yes

DOI: DOI not available