bluuebunny/crossref_metadata_2025 huggingface dataset:
Artificial Intelligence and Cybersecurity in Face Sale Contracts: Legal Issues and Frameworks
Authors: Lobna Abdalhusen Easa Al-saeedi  , Doaa  Fadhil Gatea Albo mohammed  , Firas Jamal Shakir  , Faris Kamil Hasan  , Ghadeer Ghazi Shayea  , Yahya Layth Khaleel  , Mustafa Abdulfattah Habeeb
Published: October 2024

The sale of facial features is a new modern contractual development that resulted from the fast transformations in technology, leading to legal, and ethical obligations. As the need rises for human faces to be used in robots, especially in relation to industries that necessitate direct human interaction, like hospitality and retail, the potential of Artificial Intelligence (AI) generated hyper realistic facial images poses legal and cybersecurity challenges. This paper examines the legal terrain that has developed in the sale of real and AI generated human facial features, and specifically the risks of identity fraud, data misuse and privacy violations. Deep learning (DL) algorithms are analyzed for their ability to detect AI generated faces in order to potentially function as an AI safety in face sale agreement to allow the authenticity and protecting data. In addition, it examines the legal mechanisms surrounding consent, liability and data protection and suggests changes to help accommodate the complexity of AI. This paper proposes a framework by which AI tools can be integrated into the evolution of cybersecurity strategies, to mitigate risks and ensure compliance with such new legal standards and contribute to discussing the ethical and secure use of AI in Face sale contracts.
International Trade in Muslim-Majority Countries and Volatility of The Dollar Exchange Rate
Authors: Desmintari  , Parianom Raden , Triandhari Risna , Listyanto Bryan
Published: October 2024

The study was to examine the relationship between the volatility of the dollar exchange rate on international trade variables, namely exports and imports, in 3 Muslim-majority countries. This study analyzes the possibility that the volatility of the dollar exchange rate can hamper the economy of a country. The method used is the Autoregressive Distributed Lag and Error Correction Model (ARDL-ECM) to analyze the short-term and long-term relationship between the volatility of the dollar exchange rate against international trade in Indonesia, Pakistan, and Turkey. And to see the causality relationship between variables, the Granger-Causality method is used. The data used are monthly data for the period January 2006 to December 2021. From this research, it can be seen that in the long term there is no relationship between exchange rate volatility and export performance except in Turkey. Meanwhile, there is a relationship between exchange rate volatility and import performance in Pakistan and Turkey. In the short term in the export dependent model, Turkey is the country that takes the longest to respond to shocks to international trade, while in the import dependent model, Indonesia takes the longest to respond to shocks and Pakistan is the fastest country.
A Gisaeng who Appeared in the Lyrics of Popular songs in the 1930s
Authors:   Korean Society of Gyobang and Culture, Kim Yeajin , Lee Sujin
Published: October 2024

The production of parasitic discourse through mass media such as modern newspapers and magazines, especially parasitic singer discourse, creates a so called ‘gisaeng boom’ by commercially encountering the record industry. At that time, record planning producers would have been sensitive to the public’s interest and desire to increase record consumption, and such public interest had to be reflected directly in popular song lyrics. In fact, there are many songs about Gisaeng, and in these popular songs, how was Gisaeng, which was a ‘hot topic’ at the time, being reproduced?
This article attempted to examine the perspective and perception of the contemporary people toward Gisaeng through a review of popular song lyrics. The purpose of the discussion is to expand the scope of the research subject while referring to the existing research results on modern popular songs and gisaeng singers. To this end, first, the current status of popular songs based on Gisaeng among popular songs provided on the Korean planetary record site was cataloged. However, the period limited the target to popular song lyrics in the 1930s. This is because it was a period when popular music actively spread, such as the increase in the number of Gisaengs’ listening to voiced albums and radio broadcasts, various genres of music were played, and the growth of female musicians in Gwonbeon’s expectation. Next, through the analysis of popular songs in the 1930s, the perspective of the time on Gisaeng will be analyzed from various angles.
Inclusión educativa a través del liderazgo ágil. Una revisión de la literatura.
Authors: David Inti Luje Pozo  , Katty Maribel Maldonado Feijoo  , Flor Inés Maldonado Feijoo  , Nelly Elisa Mora Chinlle
Published: October 2024

El presente artículo examina el papel del liderazgo ágil como una herramienta estratégica para promover la inclusión educativa en contextos diversos. A partir de una revisión sistemática de la literatura, se analizan las características, desafíos y oportunidades del liderazgo ágil en la implementación de prácticas inclusivas en el ámbito educativo. Se identifican cuatro dimensiones clave del liderazgo ágil: liderazgo adaptativo, colaboración y trabajo en equipo, innovación y creatividad, y evaluación continua. Estas dimensiones contribuyen a la transformación de la cultura escolar, la mejora del rendimiento académico de los estudiantes y el fortalecimiento de la comunidad educativa. A pesar de sus ventajas, la implementación del liderazgo ágil enfrenta desafíos importantes, como la falta de formación en liderazgo inclusivo, la resistencia al cambio y la carencia de recursos institucionales. Para superar estos obstáculos, se recomienda el desarrollo de programas de formación continua que fortalezcan las competencias de los líderes educativos y la creación de redes de apoyo comunitarias. Finalmente, se propone un modelo de liderazgo ágil para la inclusión educativa que se adapta a las necesidades de los estudiantes y fomenta un entorno educativo inclusivo, dinámico y receptivo. Este modelo ofrece una guía para transformar las prácticas educativas y avanzar hacia una educación equitativa y de calidad para todos los estudiantes.
Percipirana opasnost u susjedstvu i odgojni stil roditelja
Authors: Bojčić Karlo
Published: October 2024

Roditelji imaju ključnu ulogu u socijalizaciji i osiguravanju neometanog razvoja djeteta. Uz roditelje, postoji mnogo drugih čimbenika koji djeluju na razvoj djeteta, a među njima su i obilježja susjedstva u kojemu obitelj prebiva. Pretpostavka Modela obiteljskog stresa jest da nepovoljna obilježja susjedstva neizravno utječu na dijete, djelujući putem njegovih proksimalnijih okruženja, odnosno djelujući na roditelje. Stoga je cilj ovog rada istražiti povezanost između percipirane opasnosti u susjedstvu i odgojnog stila roditelja. Anketno istraživanje provedeno je u šest naselja u Slavoniji na prigodnom uzorku od 393 roditelja (326 majki i 67 očeva), koji imaju djecu u dobi između četiri i devet godina. Kao najučestaliji odgojni stil roditelja pokazao se onaj autoritativni, nakon čega slijede permisivni i autoritarni. Većina roditelja percipira nisku opasnost u susjedstvu, pri čemu ih gotovo trećina ne percipira nikakvu opasnost u susjedstvu. Korelacijskom analizom utvrđena je negativna povezanost između roditeljske percepcije opasnosti u susjedstvu i autoritativnog te pozitivna povezanost između roditeljske percepcije opasnosti u susjedstvu i autoritarnog odgojnog stila roditelja.
Komparativna analiza rezultata ispitivanja o znanju i iskustvima studentske populacije u korištenju kibernetičkog prostora
Authors: Rodin Tomislav , Kiš Jakov , Mikac Robert
Published: October 2024

Kibernetički prostor predstavlja jedan od krvotoka suvremenog svijeta o kojem vrlo snažno ovise brojne države, međunarodne organizacije, razni poslovni subjekti, kritične infrastrukture, lokalne zajednice pa tako i pojedinci. Navedeni pruža brojne pogodnosti, kao i što otvara mnogo rizika, od kojih je jedan i kibernetički kriminal. Opći cilj ovog istraživanja jest ispitati i analizirati znanja i iskustva studentske populacije u korištenju kibernetičkog prostora. Dok se posebni ciljevi odnose na: usporedbu znanja i iskustva studentske populacije u korištenju kibernetičkog prostora iz dviju anketa provedenih s razmakom od dviju godina; uvid u ponašanje u online okruženju i obrasce korištenja interneta te izloženost kibernetičkom kriminalu. Odabrana je studentska populacija zato što, prema nekoliko parametara, predstavlja iznimno kvalitetnu publiku za provedbu istraživanja. Njihova znanja i iskustva u korištenju kibernetičkog prostora istražena su putem komparativne analize rezultata dvaju upitnika, čiji su rezultati poslužili kako bi se realizirali ciljevi istraživanja i odgovorilo na sljedeće istraživačko pitanje: Kako možemo procijeniti znanje i iskustva studentske populacije u sigurnom korištenju kibernetičkog prostora? Osim toga, rad donosi set preporuka što je moguće i potrebno činiti, na pojedinačnoj pojedinca i institucionalnoj razini kako bismo znali više o kibernetičkom prostoru i bili što je moguće manje izloženi kibernetičkom kriminalu.
Imenovanje, uloga i zadaće službenika za zaštitu osobnih podataka u Ministarstvu unutarnjih poslova
Authors: Ezgeta Jagoda
Published: October 2024

U ovome radu autorica opisuje imenovanje, ulogu i zadaće službenika za zaštitu osobnih podataka propisane Općom uredbom o zaštiti podataka i Zakonom o zaštiti fizičkih osoba u vezi s obradom i razmjenom osobnih podataka u svrhe sprječavanja, istraživanja, otkrivanja ili progona kaznenih djela ili izvršavanja kaznenih sankcija. Posebno se opisuje imenovanje službenika za zaštitu osobnih podataka u Ministarstvu unutarnjih poslova Odlukom ministra iz 2019. te uloga i zadaće koje obavlja radi zaštite osobnih podataka koji se obrađuju u evidencijama/zbirkama Ministarstva unutarnjih poslova kao voditelja obrade. Svrha obavljanja njegovih zadaća, među ostalim, jest podizanje svijesti zaposlenika Ministarstva unutarnjih poslova o važnosti zaštite osobnih podataka koje obrađuju tijekom obavljanja poslova, čime se pridonosi zakonitoj obradi osobnih podataka te se unapređuje rad ovog Ministarstva i policije u cjelini.
A Comparative Study of Mean Square Error, Signal to Noise Ratios of Grey Scale Thresholded and Compressed Images Before Performing Edge Detection Method
Authors: Chakraborty Abir
Published: October 2024

Author has already published a paper where he has used colored and grey scale images to find out the mean square error, peak signal to noise ratio’s in clustering based segmented and compressed version. Here in this article author has done the same comparison of image thresolding, image compression and then edge detection techniques respectively. So there will be a sharp comparison between these two different articles where the aim of the author is same for both the cases. In this articles author has used two different types of thresholding techniques: global and adaptive thresholding.
Calidad del servicio y su incidencia en la satisfacción del cliente en la Corporación Nacional de Telecomunicaciones (CNT), Ecuador
Authors: Intriago Uquillas Karen Andrea , Cedeño Pico María Rosalba
Published: October 2024

Para garantizar la satisfacción y la eficiencia de una institución tanto pública como privada es importante realizar una evaluación de la calidad del servicio que se brinda al cliente que permita identificar las necesidades de los usuarios y mejorar determinados aspectos que los satisfagan. El objetivo de la investigación fue analizar la calidad del servicio y su incidencia en la satisfacción del cliente en la Corporación Nacional de Telecomunicaciones (CNT), Ecuador. El estudio fue no experimental y transversal, de campo y descriptivo, con un enfoque cuantitativo. Se analizó una muestra de 383 usuarios que son clientes de la empresa Corporación Nacional de Telecomunicaciones (CNT) en la zona 4 y son atendidos en diversas operaciones por los empleados. Se aplicó una encuesta basada en el modelo Servqual, estructurada con 9 ítems. Los principales resultados mostraron que la institución no cubre las expectativas de los usuarios indicando insatisfacción en los mismos, se evidencia una brecha promedio de insatisfacción de 4,30% medida con el sistema Customer Satisfaction Score CSAT, en relación a la calidad de servicio que se ofrece. Se concluye que de acuerdo a la percepción de los usuarios la calidad del servicio implica el fomento de las dimensiones seguridad, fiabilidad y capacidad de respuesta.
Diabetes Disparities: Addressing Health Inequities and Improving Outcomes in Underserved Populations
Authors:   School of Natural and Applied Sciences Kampala International University Uganda, Nambi Namusisi H.
Published: October 2024

Diabetes mellitus, characterized by high blood sugar levels due to insulin deficiency or resistance, is a global public health crisis with significant disparities in prevalence, management, and outcomes, particularly among underserved populations such as racial and ethnic minorities, low-income groups, and rural residents. These populations faced higher rates of diabetes and complications due to social determinants of health, including economic instability, inadequate education, and limited access to healthcare. Barriers such as lack of insurance, transportation challenges, and cultural and linguistic differences further hindered effective diabetes management. Lifestyle and behavioral factors, including diet, physical activity, medication adherence, and mental health, play critical roles in diabetes outcomes. Policy and system-level interventions, such as expanding healthcare coverage, improving access to care, and addressing social determinants of health, are essential to reducing disparities. Technological innovations like telehealth, mobile health applications, wearable devices, and data analytics offered significant potential to enhance diabetes management in underserved populations. This review was conducted using a comprehensive analysis of current literature and existing studies to provide insights into the multifaceted nature of diabetes disparities and to highlight successful interventions and necessary policy changes to improve health outcomes for underserved populations. Addressing these inequities required a multifaceted approach, including community-based interventions, policy reforms, and technological advancements to ensure equitable diabetes care for all. Keywords: Diabetes disparities, Underserved populations, social determinants of health, Healthcare access, Technological innovations.
Human Immune System, Its Levels, and Disorders in the Context of HIV/AIDS: A Comprehensive Review
Authors:   School of Natural and Applied Sciences Kampala International University Uganda, Mugo Moses H.
Published: October 2024

The human immune system is a complex and multi-tiered defense mechanism that safeguards the body from infections and diseases. This comprehensive review explores the structure and function of the immune system, detailing its two primary components: innate and adaptive immunity. While innate immunity offers immediate, nonspecific defense, adaptive immunity provides long-term protection by targeting specific pathogens. The review delves into the impact of HIV on the immune system, focusing on how the virus specifically targets and depletes CD4+ T cells, leading to immune system dysregulation and the progression to AIDS. The discussion includes the stages of HIV infection, the virus’s mechanisms of immune evasion, and the resulting immune dysfunctions such as immunodeficiency, chronic inflammation, and autoimmune disorders. Opportunistic infections like tuberculosis and hepatitis are also examined in the context of HIV-induced immune suppression. Advances in HIV/AIDS treatment, particularly the role of antiretroviral therapy (ART), are highlighted, emphasizing ART’s effectiveness in preserving immune function and improving patient outcomes. The review concludes by addressing ongoing challenges with ART adherence, access to treatment, and drug resistance, while also exploring emerging research into potential cures, including gene therapy and therapeutic vaccines. Through a detailed exploration of the human immune system and its vulnerabilities to HIV, this review underscores the importance of continued research and intervention in combating the global HIV/AIDS epidemic. Keywords: Human immune system, HIV/AIDS, CD4+ T cells, innate immunity, adaptive immunity, immunodeficiency
Usage of multi-hole probe on UAV with warhead
Authors: Nenadić Ilija , Damljanović Dijana , Dovatov Biljana , Bek-Uzarov Marko
Published: October 2024

This paper is about usage of multi-hole probes (MHPs) on unmanned aerial vehicle (UAV). Multi-hole probes are widely used in turbomachinery to determine angularity of velocity vector in unknown flow fields. New versions of UAV and the specter of their usage nowadays, request new solution in every area of their design. Strictly speaking, MHPs can be used on kamikaze UAV to determine sideslip angle in dive. This study present design of MHP with consideration the usage of UAV. Because this UAV is one-time use the goal is to get solution that is simple and easy to manufacture, but also precise to measure small sideslip angle. Precision of MHP measurements directly effect on epilogue if UAV hit the target or not. Computational Fluid Dynamics (CFD) are used to determine range of pressure difference created by probe head.
Design and verification of a pneumatic launch system for a single-use UAV with a warhead
Authors: Bek-Uzarov Marko , Nenadić Ilija , Rašić Stefan
Published: October 2024

The focus of this paper is the design of a pneumatic launch system (PLS) used for launching an unmanned aerial vehicle (UAV) and the verification of its mathematical model. Armed UAV systems without landing gears require a launch system for initiating the aircraft's takeoff phase. Existing solutions typically work on a mechanical or pneumatic principle. Within this research, a pneumatically operated system was chosen as they have been proven to be more reliable during exploitation. Many existing pneumatic solutions function on the principle of a piston pulling a carriage on which the UAV rests, whereas this PLS is designed to have the UAV itself act as a piston. The mathematical model of the PLS is based on the principle of conversion of the potential energy of a pressurized gas into kinetic energy. The verification of the device was executed using a replica of the UAV's fuselage which was equipped with an inertial measurement unit (IMU). After multiple launch sequences, the data was analyzed and the final velocity of the UAV was calculated. The results proved to be sufficient as they deviated with less than a 10% error compared to the theoretical values.
Testing of technical solution for achieving the optimal duration of the activation cadence of the front and main warhead in the tandem cumulative warheads
Authors: Bosiljčić Slobodan , Gluvačević Miroslav , Stančić Rade , Ugrčić Marinko , Nestorović Katarina
Published: October 2024

The production of modern armored vehicles through the use of new technologies and the development of additional active-reactive means of protection increase their toughness and resistance on the battlefield. Thus, increasing demands are placed on anti-tank missiles in order to achieve the required effect on the modern battlefield by using them. One of the directions of development of modern anti-armor missiles with high penetration is arming these missiles with tandem cumulative warheads (TKWH). In order to make the most of the effect of activating the TKWH, it is necessary to achieve very precise activation of the front and base warheads. The cadence between the activation of the front and main warheads in the TKWH depends on many factors, some of which are of constant value, while others are variable and depend on the speed of the missile at the moment of meeting the target, the angle of attack at which the missile hits the target and other factors. Due to all of the above, the control elements of the igniter that should activate the TKWH should meet many criteria, such as, first of all, absolute safety when manipulating the missile and/or TKWH, operational reliability, precision and repeatability of the dynamics of activating the front and main warhead.
Modeling of shaped charge jet penetration depth: Analytical and numerical approach
Authors: Elek Predrag , Marković Miloš , Jevtić Dejan , Đurović Radovan
Published: October 2024

Shaped charge is the most effective armor-piercing mechanism, harnessing explosive charge detonation energy to form and accelerate a hypervelocity metal penetrator known as a jet. The process entails intricate dynamics including detonation wave propagation, its interaction with the metal liner, and subsequent liner collapse leading to jet formation. While both analytical and numerical models offer insight into this complex process, each approach presents distinct challenges. Analytical models, while conceptually straightforward, often rely on simplifications that compromise accuracy. Conversely, uncertainty or even unavailability of relevant material properties and high computational cost are the most important drawbacks of numerical models. Notably, the jet penetration phase imposes significantly greater computational demands compared to preceding processes of jet formation. This research aims at providing a deeper understanding of the jet interaction with target, as well as on determining its influence on penetration depth. We revisit an analytical model based on the virtual origin concept and complement it with numerical simulations using Abaqus/Explicit in a pure Eulerian domain. Through comprehensive analysis, we explore various jet parameters-such as kinetic energy, diameter, length, velocity gradient, and effective standoff distance-and their impact on penetration depth. The insights derived from this study hold practical significance for the preliminary evaluation of the shaped charge's effectiveness and consequent refinement of the design of shaped charge projectiles or warheads.
Monitoring plasticizer's migration in the HMX/DOA mixture under elevated temperatures
Authors: Krstović Mirjana , Bajić Danica , Stančić Teodora , Timotijević Mladen , Fidanovski Bojana
Published: October 2024

Polymer-bonded explosives and plasticizer-coated nitramine based explosives represent a group of energetic materials that have been extensively manufactured in recent years in order to satisfy requirements ranging from boosters to the main charges of warheads. From the aspect of their production technology, physical-mechanical properties, and further detonation properties, it is important to properly select and incorporate specific functional additives into the explosive-polymer matrix. Dioctyl adipate (DOA) is the predominant plasticizer utilized in PBX formulations to enhance their processability. To enhance the safety of transporting HMX from the factory to the manufacturing facilities, it is not uncommon for HMX to be blended with DOA instead of using wetting explosives to make the highly reactive explosive less sensitive. This semi-product may be further incorporated in multi-component PBX formulations or pressed into booster charges. Occasionally, the HMX/DOA mixture is held for an extended period prior to utilization, which may be a problem, knowing the migration ability of DOA molecules. The aim of this paper is to monitor and measure the migration of DOA from the HMX/DOA mixture. The samples were exposed to slightly elevated temperatures for a certain period of time and compared with samples exposed to ambient temperatures. The content of DOA in the HMX/DOA system was monitored and determined using both classical and instrumental methods. The results indicate the migration of DOA is influenced by temperature, i.e. that the migration is more pronounced at a higher temperature, as well as the differences in the presence of DOA in the layers becomes more noticeable over time.
Calculation of safe diametar of propellants using heat flow measurements
Authors: Petrović Vesna , Stojiljković Slaviša , Šultans Jelena
Published: October 2024

By using experimental and theorethical work, it has been made procedure in order to use microcalorimetar heat flow data to calculate safe diametar. For calculation of safe diametar two equations have been used. Calculated results were compared. If calculated value of safe diametar is comparated with diametar of ammunition loading charge, one can make assessment whether ammunition storage is safe or not. This propellant testing has great importance for chemical stability evaluation of propellants. Microcalorimetric system, whether "TAM III" or "TAM IV" is used, gives heat flow data in terms of released heat quantityat elevated temperaturesr. Calculation of safe diameter is important in preventing accidents due to selfignition of propellants.
Influence of gunpowders and rocket propellants sample preparation on test results
Authors: Šultans Jelena , Stojiljković Slaviša , Petrović Vesna
Published: October 2024

Research, presented in this paper, deals with the influence of the different ways of preparation of gunpowders and rocket propellants, in terms of different granulations, on the results of microcalorimetric and chromatographic tests of the chemical stability of gunpowder. The samples were examined in their original form, where possible, as well as prepared in a way that requires cartain defense standards of the Republic of Serbia and in this way their requirements regarding the preparation of the sample were also reviewed. The conclusion for the optimization of sample preparation for microcalorimetric testing are especially important, which reduces free oxygen to the smallest possible amount, which has a positive effect on the accuracy of sample test results. For comparison of results, methods based on thermal activity monitoring and changes in the chemical composition of samples were used.
Design of a servo mechanism for controlling missile fins in pitch and yaw planes
Authors: Jovičić Nebojša , Stefanović Aleksandar , Stojanović Marijana , Pavić Miloš
Published: October 2024

This paper explores the design and implementation of a servo mechanism utilizing DC electromotors for control of missile fin position. This research is focused on the analysis and optimization of DC electromotors to enhance the performance of servo systems in terms of speed, torque, accuracy and efficiency. Combination of theoretical approaches and experimental test were performed to validate the proposed mechanical construction of a servo mechanism.
Analysing usage of commercial grade single antenna Inertial Navigation System in combat Unmanned Ground Vehicles for estimating orientation and position
Authors: Dragović Goran , Dučić Nedeljko , Jovanović Stefan , Simonović Marko , Božić Dušan
Published: October 2024

With increasing presence of combat Unmanned Ground Vehicles (UGV) in warzones throughout the world, in adverse and unknown terrain, their usage is limited without proper estimation of their orientation to true North and their position on world map. Until recently, Inertial Navigation System's (INS) were only cost effective in use with artillery, and their price was in range in tens of thousands of dollars. Recent development of commercial autonomous vehicles spawned a surge in developing cost effective Micro-Electromechanical System (MEMS) INS's, that are used in autonomous robots and vehicles. This paper analyzed sub-3000 dollar MEMS INS with single antenna and integrated Real Time Kinematics (RTK) and examined if it's performance is suitable for usage in combat UGVs for tasks such as forward observing and guiding, artillery target acquisition and using its own armament for indirect fire. With the help of the MATLAB software package estimated orientation and position error from data that was acquired on test setup on combat UGV was analyzed, concluding there is certain potential in using mentioned types of INS's.
The power consumption of embedded GPU computers for deep learning applications
Authors: Sazdić-Jotić Boban , Zurovac Snežana , Petrović Nikola , Bojić Dragana
Published: October 2024

The widespread use of GPU processors has significantly enhanced the usage of various artificial intelligence algorithms, especially machine and deep learning models. However, more capabilities introduced significant challenges in energy consumption, particularly on autonomous platforms with battery and autonomy constraints. Our research is crucial as it addresses the energy consumption issue on desktop and embedded GPU computers from a new angle, providing a practical and optimal measurement solution. We engaged various deep learning models to analyze and determine how different datasets for training and problems for inference affect energy consumption. Two separate platforms were used for the experiments: the NVIDIA Jetson NANO platform, a well-known type of embedded GPU computer widely used in deep learning applications, for the inference process just, and a desktop computer with two GeForce RTX 2060 for the training and inference processes. The image classification problem was involved during the training process on two separate datasets. In contrast, inference problems for object detection and drone classification were engaged on live videos and recorded RF signals during the inference process. Our methodology involved a systematic comparison of energy consumption across different models and datasets, ensuring the validity and reliability of our findings. Our findings underscore the potential to reduce energy consumption on embedded GPU computers by implementing a suitable deep learning model. This not only preserves the performance of the required process (drone radio frequency signal detection and identification and object detection in the video stream) but also paves the way for their effective use in real-life scenarios, thereby addressing a crucial need in deep learning. More importantly, we created an empirical methodology for measuring the energy consumption of embedded GPU computers for deep learning applications, directly impacting the development of energy-efficient deep learning systems.
Analysis of traffic accidents in Novi Sad using GIS technology
Authors: Đorđević Dejan , Basarić Miloš , Garić Ivan
Published: October 2024

This paper investigates the spatial and spatio-temporal distribution of traffic accidents in Novi Sad using GIS technology, analyzing open data from 2015 to 2023. Thematic maps, KDE method and k-means cluster analysis were used to identify high-risk areas. The Space-Time Cube tool enabled spatio-temporal analysis, while the Emerging Hot Spot Analysis revealed trends and anomalies in the concentration of accidents. The results contribute to a better understanding of accident dynamics, enabling more efficient planning of safety measures and directing resources to high-risk areas. The findings highlight critical areas and suggest measures to improve traffic safety.
The design and preparation of cerium-dioxide and zirconium(IV)hydroxide-incorporated nanofibers for the degradation of chemical warfare agents
Authors: Vitorović-Todorović Maja , Vujatović-Velimirov Tamara , Stupar Stevan , Bajić Danica
Published: October 2024

Specifically designed nanofibers enriched with chemically active nanoparticles, capable of destruction of chemical warfare agents (CWA's) and other toxic chemicals are highly desirable for the incorporation in personal protective equipment and decontamination items. In this work, we prepared six types of nanofibrous materials, based on the two types of polymers, polyvinylchloride (PVC) and polyvinylbutyral (PVB). As carriers of active chemistry, nanoparticles of cerium-dioxide (CeO2) and zirconium(IV)hydroxide (Zr(OH)4) were used. The morphology of the samples obtained and their qualitative chemical composition was investigated by scanning electron microscopy (SEM). The degradation ability of the nanofibrous mats was firstly investigated in an aqueous environment, over wide range of buffered pH conditions, using spectrophotometric method and paraoxon-ethyl as a model compound. A rather slow, but significant degradation of paraoxon-ethyl was observed on nanofibers which contained CeO2 nanoparticles in neutral conditions. The sulphur mustard (HD) adsorption was investigated in non-aqueous environment using GC-MS method. The samples made of PVC exerted strong adsorption of HD with almost six fold reduction in HD concentration but without any degradation of the test compound. In conclusion, nanofibers obtained showed strong adsorption ability in non-polar solvents, but further modification of CeO2 and Zr(OH)4 nanoparticles are necessary to enhance their CWA degradation ability.
The design and synthesis of the four novel dual reversible inhibitors of acetylcholinesterase based on the tacrine and aroylacrylic acid phenylamide substructures
Authors: Vujatović-Velimirov Tamara , Nikolić Milan , Vitorović-Todorović Maja
Published: October 2024

Organophosphorous chemical warfare agents (i.e., nerve agents) exhibit toxic effects mainly through covalent, irreversible inhibition of acetylcholinesterase (EC 3.1.1.7), an enzyme that terminates cholinergic neurotransmission, by hydrolyzing acetylcholine at nerve and nerve-muscle junctions. Use of nerve agents is strictly limited to research purposes only and it is under control of Organisation for the Prohibition of Chemical Weapons, OPCW. Despite all efforts to limit the use of nerve agents, unfortunately the danger of nerve agents being used in war aggression and terrorist attacks is still present. The reversible inhibition of AChE was suggested as the pre-treatment option against nerve agents' intoxications. Aiming to investigate novel pre-treatment options, we designed and synthesized the four novel compounds of tacrine and aroylacrylic acid phenylamide moieties, connected via a long methylene chain to target two distinct topologically separated anionic areas on the AChE. The inhibitory activity of the compounds toward the Electric eel AChE's as well as the horse serum BChE was determined by Ellman assay. The designed compounds may represent a new class of promising leads for developing more effective pre-treatment options.
Organophosphorus neurotoxins remediation in dynamic conditions
Authors: Milanković Vedran , Tasić Tamara , Anićijević Vladan , Pašti Igor , Lazarević-Pašti Tamara
Published: October 2024

Organophosphorus neurotoxins (OPNs) are a class of chemical compounds widely known for their potent neurotoxic effects. OPNs work by inhibiting the enzyme acetylcholinesterase (AChE), which breaks down the neurotransmitter acetylcholine in the nervous system. This research investigates using spent coffee grounds carbonized at 900°C and subsequently activated with H3PO4 and KOH to remove chlorpyrifos (CHP) and malathion (MLT) from aqueous solutions. The activated carbon material is integrated into a filtration system designed to rapidly and efficiently remove these neurotoxins. In the initial cycle, the adsorption capacities for CHP and MLT were found to be 67% (11.7 mg g-1 ) and 78% (12.8 mg g-1 ), respectively, demonstrating high effectiveness in decontamination efforts. The filter was washed using 5 mL of 50% ethanol and reused for 10 cycles. It is shown that it exhibits durability, as it can be successfully regenerated and reused without significant loss in adsorption efficiency. As the material has high surface areas and shows no specific adsorption of the neurotoxins, it can be concluded that it can successfully be used to resolve chemical threats in water sources during military operations.
Alternatives to cadmium protection in defense and aerospace industry
Authors: Komatina Konstantin , Ignjatović Milan , Tomić Stefan , Crnogorac Dunja
Published: October 2024

This paper presents results that were achieved during salt fog testing in order to determine the possibility of replacing cadmium surface protection treatment with plasma or ion nitriding. Additional oxidisation processes were implemented. Salt fog tests were conducted in accordance with relevant MIL-STD 810 test standard. Paper will focus on the experimental procedure and results, theoretical background will be mentioned in short terms. There is no numerical analysis, or complex interpretation of the test results. Conclusion will describe next course of action.
Adhesive joining of 3D printed parts
Authors: Đurić Aleksija , Marković Biljana , Milčić Dragan , Samardžić Srđan , Milčić Miodrag , Zdravković Nataša
Published: October 2024

The additive technologies such as 3D printing are an important part of all branches of industry, primarily due to the possibility of production parts with complex geometries. The aim of the research presented in this paper is the analyze of joining 3D printed polymer parts with adhesive. Furthermore, the aim of this research is to analyze the strength of lap adhesive joints under different loads. FDM technology, PLA materials and two-component epoxy adhesive were used to fabricate the testing specimens.
Structural and magnetic properties of CoFeSiB amorphous wire GMI element
Authors: Mitrović Nebojša , Orelj Jelena , Nedeljković Borivoje , Surla Radoslav , Pavlović Vladimir
Published: October 2024

In this study, the amorphous soft magnetic Co68.15Fe4.35Si12.5B15 wires prepared by the conventional inrotating water melt-spinning technique were investigated. The XRD pattern of the as-cast wire sample exhibits a very weak diffusive peak that reveals the amorphous structure. The DTA thermogram shows one exothermic process, which results from crystallization with a peak temperature of 566 °C. The XRD pattern of the sample annealed at 700 °C shows the presence of two diffraction peaks: the first could be ascribed to the crystal phase e-CoSi (structure of P2 order), and the second could belong to crystal phases Co2B and e-CoSi (P2 order). The giant magnetoimpedance (GMI) frequency behavior (ranging from 50 Hz to 5 MHz) was monitored as a function of an external dc magnetic field applied parallel to the wire sample. The critical frequency of about 5 kHz - 7 kHz was observed with the initial increase of MI. In the medium frequency range (which usually starts at about 1 MHz) the skin effect and the magnetization vector rotation mechanism are dominant in the process of circular magnetization (the movement of the magnetic domain walls is blocked). Therefore, the shape of dependence of the MI-ratio on the external DC magnetic field changes significantly and the appearance of a peak is recorded. The attained peak value of the impedance modulus of about 35 Ω was registered at the highest frequency of 5 MHz. The maximum GMI ratio of 334% was recorded at a frequency of 0.95 MHz (@ 7.72 kA/m).
Groundwater as an important resources in emergency situations of the Republic of Serbia
Authors: Vakanjac Boris , Banković Radoje , Ristić-Vakanjac Vesna , Milanović Saša , Vasić Ljiljana , Bakrač Saša , Kozić Nikola
Published: October 2024

Groundwater is a renewable resource wholly or partially protected from external influences (pollutants) by nature. Currently, about 75% of the population of the Republic of Serbia meets its water needs by using underground water. Hence, this water represents an essential strategic resource of our country; according to data from the Water Management Foundation of the Republic of Serbia (VOS, 2001), water from existing sources is used in quantities of about 23m3/s. As 67.13m3/s is the estimated potential of underground water in Serbia, we state that only 1/3 of the total available potential of these waters is in usage. Therefore, we can count on these exceptional quality underground waters in emergencies. The problem is the need to monitor these waters that need to be captured and have their intended use. Monitoring water's quantitative and qualitative parameters is necessary to determine which reserves we are talking about. Whether it is easy to reach these resources (road and electrical infrastructure), making accompanying maps using GIS tools is essential. The paper will give an example of identifying hydrogeological objects in an area, establishing monitoring of selected hydrogeological objects, and determining which maps need to be made that would be important in emergencies.
Benford's Law in service of data quality: Two cases of natural numbers
Authors: Đorić Igor , Vujičić Slađana , Ranisavljević Mihajlo
Published: October 2024

In an era of constant, growing accumulation of information quantified numerically, the need for establishing data authenticity also increases. Identifying false, fabricated data within a mass of numbers becomes a challenge that many interested parties strive to overcome, especially investigative bodies, institutions that monitor budget spending reports, and governmental agencies overseeing financial operations in the private sector. Scientific literature suggests using a natural distribution of numbers known as Benford's Law for detecting data manipulation. This study analyzes the numbers in the collected data and their distribution according to Benford's Law. This paper processed two sets of independent data, different in volume and source of collection. The goal is to demonstrate the usefulness of data processing for faster detection of misuse, and the use of Benford's Law is proposed as an effective aid for regulatory institutions.
Study and analysis thermal performance of Taza gas power plant in Kirkuk - Iraq
Authors: Khalaf H.J. , Qaddouri M.I.
Published: October 2024

In this research, the concept of energy balance was implemented in one of the gas turbine electricity generation units in Iraq (Kirkuk-Taza) K1. The design operating data is taken and compared with the data calculated in the computer model used by Engineering Equation Solutions (EES), and the validity of the model used was confirmed. The results indicate the release of a large amount of thermal energy into the atmosphere due to the open Brayton cycle, as energy losses amounted to 60% of the energy input. The results based on the data of the first unit of the station demonstrated that the theoretical efficiency of the unit is a function of the two variables, which are the temperature of the air entering the compressor and the Turbine inlet temperature: Increasing the compressor inlet temperature leads to a decrease in net power output and first-law efficiency and an increase in the specific fuel consumption rate. Increasing the turbine inlet temperature to 1°C leads to an improvement in both net power output and first-law efficiency by (0.24MW, and 0.04) %), respectively. The results also showed that cooling the air entering the compressor for 1°C leads to improving power output and first law efficiency by (0.72MW, and 0.12%), respectively, and reduces specific fuel consumption by 7.8kg/MWh..
Defense acquisitions and international politics
Authors: Jovanović Marko , Vukadinović Goran
Published: October 2024

This paper defines the relations between defense acquisitions and international politics in the modern framework of international relations. The goal is to explain theoretical concept in which armaments acquisition can be scientifically defined and the impact this important subject has on relations between states in the 21 st century.
Skills and Roles of Teachers in 21st Century Teaching: Basis for Professional Development Plan
Authors: Ragas Inocencio M. , Pontillas Pepa V. , Comon Jovit D.
Published: October 2024

Enhancing teachers' and students' 21st-century skills is a valuable goal. This study explores the skills and roles of teachers in 21st-century education across three community colleges: Opol, Tagoloan, and Salay, during the 2023-2024 academic year. The research investigates the relationship between teachers' skills and their roles in modern education and examines differences based on the respondents' profiles. The study involved 255 teachers from local government-run colleges in Misamis Oriental, using a validated questionnaire and a mixed-methods descriptive approach. Statistical analyses included mean, standard deviation, ANOVA, and correlation tests. The results revealed that most participants held units in master's degrees, with communication skills rated highest. The role of facilitator emerged as the most prominent in 21st-century teaching. Notably, creative thinking, critical thinking, collaboration, and communication skills significantly correlated with teachers' roles. Characteristics such as age and position also influenced their skills and roles. The study emphasized Deci and Ryan’s theory, Vygotsky’s zone of proximal development, and ICT integration to address the complexity of modern teaching. In conclusion, community college teachers are eager to adopt 21st-century teaching skills. It is recommended to encourage faculty to complete graduate studies, model critical thinking, recognize teachers' efforts, create engaging environments, retrain senior teachers, and support their well-being through seminars and workshops.
Advancements and Challenges in Real-Time Electronic Vision Technologies for Canned Fish Quality Inspection: A Comprehensive Review
Authors: Mahatheesan Anis Jeluxsha , Sharmilan Tharaga
Published: October 2024

The global demand for high-quality canned fish products has driven the adoption of advanced inspection technologies to ensure consistency, safety, and compliance with industry standards. This paper provides a comprehensive review of real-time electronic vision technologies employed in the inspection of canned fish quality. It traces the evolution of the canned fish industry from manual inspection methods to sophisticated automated systems, emphasizing the role of technologies such as hyperspectral imaging, machine learning algorithms, and electronic vision systems. The effectiveness of these technologies in detecting defects, assessing quality parameters, and maintaining product integrity is critically analyzed. Despite their benefits, challenges such as high costs, the need for specialized skills, and integration complexities with existing production processes are significant barriers. This review addresses these challenges and proposes solutions, including cost-reduction strategies, workforce training, and the development of adaptable systems. The paper concludes by outlining future research directions, particularly in validating these technologies in real-world scenarios and enhancing their accessibility to the industry. The findings offer valuable insights for researchers and industry stakeholders aiming to advance the quality control of canned fish products through innovative technological solutions.
Teachers’ Well-Being and Instructional Efficacy: Basis for Professional Development Plan
Authors: Mendez Prescilla Z. , Corpuz Gerlinda G. , Comon Jovit D.
Published: October 2024

This study investigates the impact of various aspects of teacher well-being on instructional efficacy, focusing on emotional aspects, work engagement, relationships with stakeholders, sense of purpose, and accomplishments. It examines how these factors influence planning and preparation, the learning environment, instructional effectiveness, and professional responsibilities. Conducted in Roosevelt County Schools, Montana, during the 2023-2024 school year, the study used a descriptive correlational approach with mixed methods, focusing on quantitative research. Data were collected via an adapted survey from 198 teachers and analyzed using statistical tools like mean, frequency, percentage, standard deviation, Spearman Correlation Test, and Kruskal-Wallis Test. The findings revealed no significant relationship between teacher well-being and demographic profiles such as age, race, years of experience, position, and grade level. However, higher educational attainment was significantly related to emotional well-being, accomplishments, and instructional efficacy in several areas. Age also influenced professional responsibilities. The study suggests that schools should prioritize well-being initiatives tailored to teachers' specific needs to enhance instructional efficacy. By promoting support systems and focusing on well-being in their planning processes, schools can create a positive and supportive learning environment that benefits both teachers and students.