Natural Resources and Technology

HYDROGEOLOGICAL PARAMETERS OF THE EXPLOITATION WELLS EB-1 AND EB-2 IN THE CENTRAL CITY AREA OF THE MUNICIPALITY OF SVETI NIKOLE

Milica Nikolovska Panevska — 2024-12-03

The knowledge of all water resources, today, is a basic prerequisite for existence and further development of the society. Over 80% of the water supply to the population and industry in the Republic of Macedonia is provided through the capture of underground water. Since for regional water supply systems it is necessary to invest enormous funds, mainly for the construction of surface reservoirs, solving the problem of water supply at the sub-regional, municipal or local level practically gains greater importance, among other things, due to the rational conditions of the construction and maintenance of the systems.

In that sense, the municipality of Sveti Nikole is an example of very high-quality approach to research for the needs of finding local potential conditions for public centralized water supply in individual settlements or parts of municipal territories, and thus rational and thoughtful investments for the future. In this paper, the potential opportunities for capturing economically viable amounts of underground water in Neogene sediments are highlighted, based on the results of the hydrogeological research.

Based on the specified parameters, the environment is characterized by a filtration coefficient EB – 1 - K = 5.00 × 10^-5 m/s, EB – 2 - K = 1.7 × 10^-5 m/s, coefficient of water permeability EB – 1 - T = 2.22 × 10^-4 m²/s = 23 m²/day. EB – 2 - T = 7.5 × 10^{- 4} m²/s = 24 m²/day and yield Qexp for EB-1 - 1.47 l/s, Qexp for EB – 2 = 1.07 l/s

APPLICATION OF MODERN PLATFORMS FOR THE ACQUISITION OF SPATIAL DATA IN LANDFILL MONITORING

Bojan Maksimov — 2024-12-03

Environmental contamination due to poor solid waste management represents a global ecological issue. The real need for quality spatial data in the processes of solid waste management plays a key role in improving work performance and facilitating work processes. Through the implementation of modern platforms for the acquisition of spatial data, an efficient and quality method for conducting measurements without direct contact with the terrain is achieved. This paper presents the monitoring of waste quantities generated at the non-standardized "Mavrovica" landfill in Sveti Nikole using the results obtained from LiDAR scanning of the territory of the Republic of North Macedonia as well as conducted drone filming.

The presented results represent the progress and refinement of modern platforms for the acquisition of spatial data, thereby serving as a reference point for analyzing the value states of waste generated from a certain temporal distance.

SOLVING A TWO-PHASE TRANSPORTATION PROBLEM – TRANSSHIPMENT MODEL WITH THE APPLICATION OF LINGO SOFTWARE

Zoran Despodov — 2024-12-03

Transportation, as a logistical subsystem, is the most cost-significant part of logistics. The costs arising from transportation are the highest incurred expenses within the logistics system. Considering the limited possibilities for reducing transportation costs, it is crucial for enterprises to find new ways to lower these costs, thereby increasing their profit. This paper addresses the solution to a two-phase transportation problem – a transshipment model with the application of computers, aiming to determine an optimal transportation plan for goods and minimize transportation costs both within a single enterprise and across the entire supply chain.

IMPROVING TIME EFFICIENCY USING COMPUTER SOFTWARE INTENDED FOR PRODUCTIVE PREPARATION IN CUSTOM-MADE CABINET FURNITURE FACTORIES

Marija Krstev — 2024-12-03

The goal of the research presented in this paper is to see the impact of computer software intended for manufacturing preparation on the time required to prepare the complete technical documentation during the launch of a new product within a micro enterprise for the production of custom-made cabinet furniture. For that purpose, the time spent during standard constructive preparation was measured. Standard constructive preparation covers views, sections and details drawing in AutoCAD of previously prepared 3D models of various pieces of furniture, and then dimensioning the constituent elements and creating a scheme for cutting the material in an appropriate software. For the same pieces of furniture, time was measured during the preparation of the same documentation through several different software intended for constructive preparation, specifically in PolyBoard in this part of the research, as presented in this paper. The results show that the computer software significantly shortens the constructive preparation time.