Nataša Kovač

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• Doctor of Philosophy
• Associate Professor at University of Donja Gorica

Introduction: Love addiction, a negative emotional construct, can significantly impact an individual’s personal and social life. It is characterized by emotional dependency involving both positive and negative emotions, specific interpersonal needs, and elements of self-hate. In recent years, machine learning has become increasingly valuable in pre...

Viticulture in Montenegro faces significant challenges due to fragmented data management, limited access to high-resolution climate predictions, and the lack of systematic integration between stakeholders. This study addresses these issues by proposing a knowledge-driven system architecture that consolidates climate and phenology data, facilitates...

This paper introduces a probabilistic methodology designed to estimate the corrosion wear in transverse bulkhead plating, a crucial structural element found in fuel oil tanks situated within the double bottoms of aging bulk carriers. By utilizing an extensive dataset of thickness measurements obtained during special surveys conducted at 5, 10, 15,...

This guide presents a detailed overview of the most used machine learning (ML) techniques for psychologists who may not be familiar with advanced statistical methods, algorithms, or programming. Recognizing the growing interest in using data-driven approaches within psychological research, this guide describes applying ML techniques to investigate...

The intersection of machine learning (ML) and cognition is often referred to as 'artificial intelligence', whereas the intersection of psychology and ML is a term we would like to coin as 'Artificial Psychology' or "PsAIchology". The main purpose of this paper is to introduce three commonly used machine learning algorithms for mind research along w...

The Montenegrin climate is characterised as very heterogeneous due to its complex topography. The viticultural heritage, dating back to before the Roman empire, is settled in a Mediterranean climate region, located south of the capital Podgorica, where climate conditions favour red wine production. However, an overall increase in warmer and drier p...

Research background: Digitalization and the associated digital divide are crucial issues impacting socio-economic development globally. Extensive research has examined digitalization and the digital divide in EU countries, but there is a lack of understanding regarding comparisons with studies conducted in Western Balkan countries. This study inves...

This chapter presents a study focused on the corrosion behavior of three distinct shape memory alloys (CuAlNi and two types of NiTi alloys) in varied marine environments—air, tide, and seawater. The research documents corrosion damage after 6, 12, and 18 months, utilizing focused ion beam. Scanning electron microscopy and energy dispersive X-ray an...

The paper presents an application of the divide and conquers strategy to exactly solve the Discrete Berth Allocation Problem (DBAP). After partitioning a problem by divide and conquer strategy to sub-problems Sedimentation Algorithm solver is used to exactly solve these sub-problems. Experimental evaluation we performed completely justifies applica...

Air pollution is a critical environmental concern that poses significant health risks and affects multiple aspects of human life. ML algorithms provide promising results for air pollution prediction. In the existing scientific literature, Long Short-Term Memory (LSTM) predictive models, as well as their combination with other statistical and machin...

There are a lot of different factors of hull structure degradation such as cracks, damage, fatigue or corrosion. Fatigue and corrosion were the most thoroughly examined in the previous studies. Corrosion is a more dominant form of degradation that causes the reduction of the original thickness of materials over time, which can be expressed through...

In this paper, we investigate the corrosion process of Ni-Ti alloy obtained by the new continius casting method. As the corrosion rate of the material depends on the environment in which the material is located and the corrosion product that slows down the corrosion process over time, in this paper we analyze changes in the base material and the fo...

In this article, Special Trans Functions Theory (STFT) is used to obtain exact solutions of the transcendental equation that describes Dimensionless Injection Rate (DIR) for CO2 storage. The obtained results were compared with DIR values calculated by a sequential asymptotic formula (SAF) based on the Lambert W function. The proposed exact analytic...

The longitudinal girder (LG) between fuel oil tanks (FOT) and water ballast tanks in the double bottoms of ships represent critical structural parts whose watertight nature could be harmed by corrosion, thus, causing the pollution of water ballast tanks and adjacent areas. The new common structural rules (CSR) define the minimum thickness values of...

The degradation of metal materials in a marine environment represents the consequence of the electrochemical corrosion of metals under the influence of the environment. The application of new materials in the maritime industry requires experimental, real-world research on the form of corrosive damage and the intensity of the corrosion. This paper a...

The analysis of the behaviour of new materials in the natural environment is important for their application and commercial use. In order to explore the application of Shape Memory Alloys in the Maritime industry, this research focuses on the corrosive behaviour of the NiTi rod that was produced by means of a continuous casting process. The experim...

This paper gives an approach to the corrosion resistance analysis and changes in the chemical composition of anNiTi alloy in the shape of a disc, depending on different real seawater environments. The NiTi discs were analysed after 6 months of exposure in real seawater environments: the atmosphere, a tidal zone, and seawater. The corrosion tests sh...

This study goes through basic principles of environmental monitoring in order to propose a simple real-time environmental monitoring based on the Internet of Things technology. The proposed solution utilizes inexpensive and widely available hardware and software components making it suitable for both personal and commercial use. The hardware of the...

Actual corrosion experiments are based mainly on methodologies that measure the corrosion rate of alloys as a function of the parameters that characterise different external influences and the specific environment in which the alloys are placed. Corrosive processes are viewed as complex stochastic processes described by linear and nonlinear probabi...

To ensure the better structural integrity and maximum safety of bulk carriers in the ship design phase, an appropriate corrosion margin is introduced by the classification societies, which should enable the exploitation of ships during the projected 25-year life cycle. The new Common Structural Rules introduce even higher corrosion margin value to...

To ensure the better structural integrity and maximum safety of bulk carriers in the ship design phase, an appropriate corrosion margin is introduced by the classification societies, which should enable the exploitation of ships during the projected 25-year life cycle. The new Common Structural Rules introduce even higher corrosion margin value to...

Probabilistic models of corrosion rate estimation in the case of two NiTi alloys obtained by different technological processes are analysed in this paper. The depth of corrosion was measured by focused ion beam analysis on a metal surface that was not protected by an anti-corrosion coating. The samples were exposed to the influence of three differe...

During the exploitation of bulk carriers, the condition of structural elements and areas depends on the type of the cargo transported, operational conditions and maintenance systems. Corrosion significantly accelerates the aging of metal plates and girders thus causing the deterioration of steel surfaces, which consequently reduces the reliability...

This research is based on the analysis of empirical data obtained in a real experiment which included monitoring the corrosion behaviour of NiTi shape memory alloy created under the influence of three different seawater environments. In their work so far, the authors have conducted extensive research on the analysis of the rate of corrosion process...

During the exploitation of bulk carriers, the condition of structural elements and areas depends on the type of the cargo transported, operational conditions and maintenance systems. Corrosion significantly accelerates the aging of metal plates and girders thus causing the deterioration of steel surfaces, which consequently reduces the reliability...

This study considers the Dynamic Minimum Cost Hybrid Berth Allocation Problem (DMCHBAP) with fixed handling times of vessels. The objective function to be minimized consists of three components: costs of positioning, waiting, and tardiness of completion for all vessels. A mathematical formulation of DMCHBAP, based on Mixed Integer Linear Programmin...

This paper gives an approach to the probabilistic percent corrosion depth estimation model for the CuAlNi Shape Memory Alloy (SMA) in different marine environments. Real testing was performed for validation of the theoretical model, where CuAlNi SMAs were exposed to 6 and 12 months in different seawater environments. Focus Ion Beam (FIB) analysis w...

This paper presents an approach for the model estimating the probabilistic percent corrosion depth for inner bottom plates of fuel oil tanks located in the double bottom of aging bulk carriers. Assuming that corrosion begins after four years of exploitation, a statistical approach to investigations on the ratio of the corrosion rate and the average...

APSTRAKT Ovaj rad predstavlja pregled dosadašnjih istraživanja autora u pogledu procjene istrošenja strukturnih elemenata tankova goriva kod starih balkerijera u eksploata-ciji. Podaci koji su koriš eni u istraživanjima zasnivaju se na izmjerenim debljina-ma pokrova dvodna kod 25 starih balkerijera u eksploataciji. Ukupno 2926 izmje-renih podataka...

This study considers the Dynamic Minimum Cost Hybrid Berth Allocation Problem (DMCHBAP) with fixed handling times of vessels. The objective function to be minimized consists of three components: the costs of positioning, waiting, and tardiness of completion for all vessels. Having in mind that the speed of finding high-quality solutions is of cruci...

This paper considers corrosion wastage of two ship hull structure members as a part of investigated fuel oil tanks of 25 aging bulk carriers. Taking into account that many factors which influence corrosion wastage of ship hull structures are of uncertain nature, the related corrosion rate (c1) is considered here as a real-valued continuous distribu...

The Minimum Cost Hybrid Berth Allocation problem is defined as follows: for a given list of vessels with fixed handling times, the appropriate intervals in berth and time coordinates have to be determined in such a way that the total cost is minimized. The costs are influenced by positioning of vessels, time of berthing, and time of completion for...

This paper gives an approach to the probabilistic corrosion rate estimation model for inner bottom plates of bulk carriers. Firstly, by using the data from thickness measurements for inner bottom plates for considered 25 bulk carriers, the related best fitted linear model for the corrosion wastage is obtained as a function of ship’s age. In this mo...

Berth Allocation Problem incorporates some of the most important decisions that have to be made in order to achieve maximum efficiency in a port. Terminal manager of a port has to assign incoming vessels to the available berths, which need to be loaded/unloaded in such a way that some objective function is optimized. It is well known that even simp...

A survey within Erasmus+ Project Trans2Work was conducted in order to identify and analyze the needs of employers. The sample consisted of 426 employers from Serbia, Bosnia & Herzegovina, and Montenegro. Formal education of persons with disabilities was not prime consideration of employers. Although this varied by country, additional skills seemed...

According to the opinions of students with disabilities (SwD) and employees with disabilities (EwD), the employment is harder available for them than for the rest of the population. The transition from academic education to the inclusion in the work force is very complex and demanding process that has profound impacts primarily on SwD and subsequen...

Comparison between students with disability (SwD) and employees with disability (EwD) in RS, BiH and MNE was completed as a part of the study for further implementation of Erasmus+ Trans2work project. In this study the sample consisted of SwD studying at the university in the three countries and EwD. There was in total 170 SwD RS (65; 28.24 %), BiH...

In this paper we presented research as just one part of a comprehensive study of Erasmus + Trans2work project, aimed on supporting SwD from HEI to labour market and help HEI, employers and SwD to successfully complete this transition. The data analysis, where total of 426 employers from RS (341, 80.05 %), BiH (45, 10.56 %) and MNE (40, 9.39 %) part...

This paper presents an exact combinatorial algorithm for solving the Discrete Berth Allocation Problem (DBAP) and the Hybrid Berth Allocation Problem (HBAP) with fixed handling times of vessels based on the original algorithm for solving combinatorial problems called Sedimentation Algorithm. We address the issues of DBAP and HBAP according to the R...

The paper presents an application of the divide and conquer strategy to exactly solve the Discrete Berth Allocation Problem (DBAP). After partitioning a problem by divide and conquer strategy to sub-problems Sedimentation Algorithm solver is used to exactly solve these sub-problems. Experimental evaluation we performed completely justifies applicat...

A new optimization method based on the Evolutionary Algorithm (EA) is developed for solving the Minimum Cost Hybrid Berth Allocation Problem (MCHBAP) with fixed handling times of vessels. The goal of the MCHBAP is to minimize the total costs of waiting and handling, as well as earliness or tardiness of completion, for all vessels. It is well known...

This paper presents two exact combinatorial algorithms for solving the Discrete Berth Allocation Problem (DBAP) with fixed handling times of vessels classified as disc | stat | fix | Σ(w1 wait + w2 speed + w3 tard + w4 pos). We address the issues of DBAP according to the well known Park and Kim model. To the best of our knowledge the proposed algor...

This paper studies the problem of adapting punishment policies in traffic scenarios. It focuses on a two-road junction scenario simulated by means of Simma, a Multi-Agent Based Simulation Tool. Adaptation is based on an adaptive neuro-fuzzy inference system (ANFIS) together with a hybrid learning algorithm (HLA). Basic punishment policy is provided...

Central Electronic Montenegro Maritime Catalogue (CEMMC) is multimedia electronic data base. It represents, by the contemporary technology and due to the bibliographic standards, a described and processed library, archival (and partly museum) materials related to the maritime affairs, from the earliest written and printed documents to the newest of...

This paper considers determining the round tour that is near to the optimal one, by application of the Hopfield-Tank neural network algorithm adaptation for solving well-known traveling salesman problem (TSP). The mathematical approach to the Hopfield-Tank TSP neural algorithm realisation and exploitation proposed in the paper is primarily based up...

This paper considers determining the optimal linear ship’s route by the application of the Hopfield-Tank neural network algorithm adaptation for solving well known travelling salesman problem (TSP). In the paper proposed mathematical approach to the Hopfield-Tank TSP neural algorithm realization is primarily based upon faster generating zero-one ma...

This paper considers developing the ANFIS system based upon functional equivalence between the two-input first-order Takagi-Sugeno-Kang (TSK)fuzzy inference system and radial basis network (RBN). The input values are the linguistic qualifications related to the criteria: the wind strength and the travelling distance, in the long-ocean sailing zone,...