Iskanje po katalogu digitalne knjižnice

Opis: This paper presents a combined modeling approach to evaluate the ecological effects on the habitat of an upstream tributary of a river with a series of hydropower plants. The influence is investigated of the last planned hydropower plant to be built, which has a large impact on the river ecosystem. The new hydropower plant basin will affect the tributary with hydropeaking in the upstream basin. A simulation was conducted of spawning conditions for two protected fish species. The analysis combined a hydro-morphological model with a fish module that considers the water depth and velocity necessary for fish reproduction. The different river discharge scenarios were simulated, incorporating the hydropeaking effects of the new hydropower plant basin on the upstream tributary. With the new hydropower plant, sustainable measures are planned to prevent the damaging negative impacts that could lead to the degradation of the river ecosystem and the destruction of the existing ecosystem at the river’s confluence. The results indicate that, after the hydropower plant begins operation, the habitat`s suitability will decrease, and the planned sustainable measures will not provide a fully satisfactory solution.
Ključne besede: environmental impact, habitat sustainability, hydro-dynamic model
Objavljeno v DKUM: 11.04.2025; Ogledov: 0; Prenosov: 10
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Opis: This study examines the impact of socio-demographic factors on attitudes towards sustainability and digitalization in logistics and supply chain management. Since a significant gap was identified in this field, study explores how company size, industry sector, and workforce diversity influence strategic planning and operational efficiency within these pivotal sectors of global commerce. The main novelty of the research is to set the roles of technological readiness and knowledge-based factors in shaping organizational responses to sustainability challenges and digital transformation opportunities. By analyzing the correlation between socio-demographic profiles and technological adoption behaviors, the paper aims to provide insights that could help organizations tailor their strategic initiatives to better align with diverse stakeholder needs, enhancing operational efficiency and promoting sustainable practices. This study seeks to fill the gaps in current research by offering a detailed exploration of how sociodemographic diversity impacts the adoption of innovative technologies and sustainability measures within the logistics and supply chain sectors. Results revealed that gender, sector, work position and company size contribute to different understanding and prioritisation of sustainability topics. Managers and team leaders are more focused towards sustainability than the rest of employees and logistics and supply chain sector prefer digitalization over sustainability.
Ključne besede: socio-demographic profiles, sustainability, digitalization, logistics, supply chain management
Objavljeno v DKUM: 17.03.2025; Ogledov: 0; Prenosov: 3
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Opis: Vertical addition to already-existing structures is an approach to energy-efficient building renovation. It presents an opportunity for the densification of built-up areas and the construction of new usable spaces. While many studies have dealt with the subject of renovating buildings with a focus on energy efficiency, far fewer studies have specifically examined the potential of vertically extending existing buildings, an approach which could be introduced in new sustainable building policies. The objective of this study is to redevelop optimal timber–glass upgrade modules, considering the ideal proportions of glazing for all cardinal directions, by using discrete Mixed-Integer Non-Linear Programming optimization. The novelty of the suggested method resides in the synchronous optimization of the upgrade modules’ daylighting and energy-efficiency performance, resulting in the creation of optimization methods that can determine the optimal glazing proportions for all cardinal directions and incorporate rational design and window measurement. The impact of the developed Mixed-Integer Non-Linear Programming-optimized upgrade modules is compared to previously designed optimized upgrade modules. Finally, a methodology for estimating the energy efficiency of building renovations incorporating vertical additions using the timber–glass upgrade modules was developed, supporting the quick assessment of the reduction in hybrid buildings’ energy consumption for heating and cooling according to boundary conditions, presuming that they undergo the suggested renovations. The findings are applicable (not exclusively) to Slovenia’s residential building stock, which makes up around 20% of the country’s current housing stock and was mainly constructed between 1946 and 1970. This offers a substantial opportunity to improve the overall sustainability and energy efficiency of the country’s housing stock. The proposed approach offers a holistic solution to drive sustainable development in the built environment by incorporating all three pillars of sustainability (environmental, social, and economic).
Ključne besede: energy efficient building renovation, energy efficiency, building vertical addition, timber–glass upgrade modules, mixed-integer non-linear programming, MINLP, optimization, visual comfort, energy sustainability
Objavljeno v DKUM: 16.01.2025; Ogledov: 0; Prenosov: 5
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Opis: Business ethics is becoming an important concern in the era of increasing sustainability issues, and a strong organizational culture can be the foundation for implementing business ethics. This research analyzes publication trends related to organizational culture, environment, and business ethics, as well as how to build an ethical business environment. The study used bibliometric analysis with Scopus data sources with 134 documents from 1994-2024 with the keywords "organizational culture”, “organizational environment”, and “business ethics", VOSViewer and NVIVO software were utilized to analyze data. It was discovered that ethical and integrity leadership, a strong organizational culture, and ethical communication are key pillars in creating an ethical and sustainable business environment. This research highlights the importance of integrating ethical values in organizational policies and governance, as well as the active role of leaders in upholding ethical standards. Open and honest communication and a sustainable CSR program reinforce organizational ethical practices. These findings highlight the importance of strengthening ethics policies, implementing regular ethics training, and building an organizational culture that supports ethical values to improve long-term performance. The research also offers theoretical insights into the strategic role of leadership and culture in sustainable business ethics.
Ključne besede: organizational culture, organizational environment, business ethics, sustainability, bibliometric
Objavljeno v DKUM: 17.12.2024; Ogledov: 0; Prenosov: 7
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Opis: Companies rely on formulating, implementing, and monitoring strategies in social, environmental and economic aspects to ensure that they achieve their goals and keep abreast of developments related to sustainability requirements. Therefore, our study develops a system to integrate the closed-loop supply chain approach in the petrochemical sector. The research follows the quantitative-based approach by collecting data through a questionnaire directed to employees in the supply chain departments, including 230 questionnaires that were collected. Correlation and structural equation models (SEM) were used. This technique consists of multiple regression analysis and factor analysis and analyses the structural relationship between the underlying structures and the measured variables. The results indicated a significant relationship between the supply chains that have a loop from the following perspectives: economic motivations, customer awareness, environmental legislation, and sustainability. By increasing financial reasons, customer awareness and environmental legislation, sustainability will increase as they all move in the same direction. Therefore, the overall effect of a closed-loop supply chain is positive and significant.
Ključne besede: closed-loop supply chain, petrochemicals, cost effectivity, product stewardship, multiple regression analysis, factor analysis, sustainability
Objavljeno v DKUM: 12.12.2024; Ogledov: 0; Prenosov: 4
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