• Increasing the resilience of critical entities in response to the dynamic spectrum of threats

    pg(s) 79-82

    Achieving a comprehensive approach to the issue of resilience of entities that are critical to the proper functioning of the national economy requires the creation of a comprehensive framework addressing the resilience of critical entities to all hazards, whether natural or anthropogenic, accidental or intentional. For this purpose, good practice implies the use of European and international standards and technical specifications that are relevant for both security measures and resilience measures applicable to critical infrastructure.
    Precisely, the presentation of updated information on a possible approach that requires innovation in the field of security and protection of critical infrastructure is the content of this publication.

  • Techniques for studying customer attitude to service provided

    pg(s) 60-63

    Customer satisfaction is a priority for any business that wants to be successful over a long period of time. Feedback from customers who share their opinion about the products and services offered by the company gives a complete picture that can be used for precise planning, statistics and implementation of new aspects in the service. The purpose of this article is to present some techniques for processing data obtained from customer feedback.

  • Evaluation of formal education active labor market policy programs in slovenia with propensity score matching

    pg(s) 56-59

    In this paper, we evaluate the formal education active labor market policy programs in Slovenia during the great recession. The quasi-experimental method of propensity score matching is applied. Performance of active labor market policy programs is typically measured with the average treatment effect on the treated. In the short term, the programs do not reduce unemployment and are characterized by a high dropout rate or a high percentage of unsuccessful completions due to some problematic target groups.

  • Risk Driven Design of Technical Product

    pg(s) 53-55

    Technical Products that companies put on the market must be competitive and must find their way to the customer or the customer must find their way to them. In the vast majority, these are new products or innovated existing products that can offer the customer added value compared to the competition and, above all, induce in him the desire to purchase the product and not just include it in the selection of other competitive products. During the development process of these products, it is necessary to take into account the entire life cycle of the product and not only its operational functions and other operational characteristics, which is quite often neglected. There exist a lot of engineering design methodologies, methods and/or tools implemented in guidelines and standards which help engineering designers to innovate products and to reduce constructional, safety, environmental, etc. risks of Designed (future) Technical Products. Their common feature is especially high dependence on specialized experience of their users, time consuming, and their mutual both conceptual and terminological inconsistency resulting in very difficult compatibility with engineering designing itself.

  • A study on the external factors affecting the work of the project manager during the execution of the construction investment process

    pg(s) 49-52

    The topic of the Report is a study of external factors affecting the work of the project manager in the implementation of the construction investment process.
    For the needs of the current development, a pilot study was organized and conducted by means of a survey, the purpose of which is to collect primary information regarding influencing factors on the activity of the project manager.
    The partic target group of respondents are employees from the construction industry, holding various management positions in the defined companies – managers, project managers, technical managers, etc.
    Various construction sites were visited and surveys conducted accordingly, both in Sofia and in the country. The companies themselves are randomly selected.
    The results of the study will be presented in the report

  • Methods and theoretical foundations for assessing the quality of products and services of a transport firm

    pg(s) 14-17

    The study of the formation process of the operation quality of a transport firm is the most topical, since this process significantly determines the dynamics of its evolution. The paper presents the concept of the product and service quality, describes the difference between the service and the product, as well as a step-by-step scheme of quality development. The history of quality management development is also discussed on the example of three leading regions of the world: USA, Japan and Western Europe.
    Methods for assessing the quality of products and services have been established, which are somewhat different from each other and are of great importance for assessing the activities of a transport enterprise.

  • Analysis of Different Energy Efficiency Technologies Based on Cost and Return of Investment

    pg(s) 12-13

    Application of different retrofitting technologies can play a significant role in reducing energy consumption of existing buildings. This research work analyses a building in Cork (Ireland) where underfloor heating system, and natural ventilation are used to maintain comfort conditions. Underfloor heating system is the main electricity consumer of this building. Different energy efficient technologies were implemented and analyzed in terms of reducing electricity consumption through an energy software. These technologies include replacing illumination with high efficiency light; replacement of electric motos with high efficiency; introducing underfloor heating time scheduling turning on and off based on predicted weather condition; installation of presence sensors to switch ON/OFF lighting. Finally, it was decided to implement underfloor heating time scheduling as energy efficient technology to be analyzed because of limited budget available and high return on investments provided by applying this method. Result analysis shows that electricity saving on bills was about 20% on monthly basis compared to previous consumption.

  • Creation of an automated tool for evaluation and selection of NoSQL databases intended for financial services based on predefined criteria

    pg(s) 10-11

    As technology advances every day of our lives and generates vast amounts of data while different systems, sensors etc. are working, it is important to meet their needs and demands. Digitalization is one of the biggest driving forces for developing of databases – relational and non-relational – in every sphere that they are used, and especially the utilization of NoSQL dBs in areas that were once unthinkable. Financial services offered by different institutions usually relied on relational databases only, but with continuously changing technologies new ways for managing data emerged. This paper presents an automated tool for evaluation and selection of NoSQL databases intended for financial services based on predefined criteria.

  • Conceptual model for overcoming the consequences of the pandemic

    pg(s) 6-9

    The paper presents a conceptual model for overcoming the consequences of the pandemic based on summarized results from research focused on societal challenges in Bulgaria caused by COVID-19. The study aims to submit a unified methodological framework for application by experts in researching, analyzing, and bench-marking the entrepreneurs’ activity and suggestions for applicable and reasonable measures in the field of business development during the pandemic situation caused by COVID-19. The findings of this research can assist managers in national institutions and business organizations to recognize the strengths and weaknesses of different measures which influence creativity and innovation and focus on proactive suggestions to overcome the negative consequences of the pandemic.

  • Sustainability and application of life cycle assessment in welded structures

    pg(s) 3-5

    As global environmental impacts have increased, modern societies have expressed a strong interest in implementing sustainable solutions to reduce emissions and use operational energy and natural resources. The construction industry is a leading promoter of significant environmental impacts because it consumes a significant amount of water, energy, and materials. Steel and welding are critical in all three major sectors of the industry: construction, infrastructure, and industry. This paper discusses the significance of meeting sustainable development goals in welded structures and identifies ways that this industry can help to reduce environmental impact and improve employment conditions while achieving economic growth, saving time, and maintaining structural quality. The paper discusses how to optimize various aspects ranging from raw material extraction to construction waste disposal using the life cycle assessment (LCA) methodology. It provides a starting point and demonstrates how these tools can contribute to more sustainable welded structures.

  • Economic Comparison of the Two Proposed Wind Farms in Mamaj, Albania

    pg(s) 71-75

    The study addresses to an economic comparison of two proposed wind farms in the same area in Mamaj, Albania, respectively 10.8 MW and 12.6 MW. The 12.6 MW wind farm proposed is predicted to produce 34 GWh energy, with a capacity factor of 30.8%, while the 10.8 MW wind farm is predicted to produce 30.4 GWh, with a capacity factor of 32%. For the 12.6 MW wind farm since there is a higher installed power, is expected to produce more energy, but referring that they will be built in same area, the wake losses will indicate in overall efficiency of the wind farm. The wake losses calculated for the 10.8 MW wind farm are 0.98%, meantime for the 12.6 MW wind farm wake losses is calculated 2.58%, means that the overall efficiency of the 10.8 MW wind farms is higher. For the economic evaluation RETScreen Expert software is used. With a discount rate of 7%, the benefit-cost ratio is 2.9 and simple payback period 7.6 years for 10.8MW wind farm, and for the 12.6 MW the benefit-cost ratio is calculated 2.6, with a simple payback year of 8 years.

  • Financial project for construction of a plant for the production of granules, panels and plates of foam glass and small and large composite elements

    pg(s) 64-70

    A financial project has been prepared for the construction of a plant equipped with a technological line for the production of foam glass products. It is planned to build a warehouse for raw materials, a sector for preparation of materials, various production workshops for the manufacturing of foamed granules and pieces, a continuous tape or block of foam glass, various composite materials (thermal insulation and color decorative panels, various small and large composite elements, etc.), repair section and two warehouses for finished products. Approximate calculations have been made for the necessary raw materials, technical equipment, electricity, personnel and other costs for the realization and operation of the plant.