SCIDAR - A Digital Archive of the University of Kragujevac

Saturated Linear Unit as an Universal Symmetric Activation Function for Deep Learning

There is a number of symmetric activation functions used in artificial neural networks for deeplearning. In this paper, we propose a universal activation function based on the Saturated Linear Unit(SaLU) that can be used instead of any known symmetric activation function. It is not necessary forclassification tasks to have an exact calculation of the probability of detected classes. Theclassification decision is made based on the highest probability for the input values. We propos...

Pneumothorax in permature infant: A new perspective trough lung X-ray image segmentation

The aim of the research is to analyze methods of visualizing pneumothorax in premature infants through segmentation of lung radiographic images. This study examines the radiograph of a premature infant at 29 weeks gestation diagnosed with pneumothorax. Pneumothorax visualization was performed through segmentation of the lung radiographic image using the MATLAB software environment. Prior to segmentation, the radiographic image was preprocessed, including noise removal and edge enhancemen...

Deep insight: Harnessing convolutional neural networks for precise classification of neurosonographic findings in premature infants

Perinatal asphyxia, particularly when combined with the underdevelopment of organ systems, is a major contributor to permanent neurological harm or death in premature infant. In neonatology, our attention is directed towards tailoring prognosis, preventing issues, and customizing treatment for neonates with H-I brain lesions. This approach entails employing non-intrusive diagnostic techniques, monitoring clinical indicators, and analyzing transfontanelle neurosonographic images with spec...

Design and calculation of test stand for testing personal fall protection equipment according to EN 364

This paper presents the design and calculation of a test stand intended for testing personal fall protection equipment in accordance with the requirements of the international standard EN 364. The objective of the study was to develop a reliable, safe, and structurally adequate test stand capable of performing both static and dynamic tests on components of fall arrest systems, including different types of personal fall protection systems, fall-arresters, anchor lines, safety harnesses, lanyar...

Inovative methods of segmentation of radiographic images in the diagnosis of hip osteoarthritis using MATLAB

NUMERIČKA SIMULACIJA PROCESA BUŠENJA SA REALNOM GEOMETRIJOM ALATA

Proces bušenja predstavlja jednu od najčešće primenjivanih operacija obrade rezanjem, pri čemu geometrija alata značajno utiče na formiranje strugotine i stabilnost procesa. U radu je prikazana numerička analiza procesa bušenja zasnovana na realnoj geometriji alata dobijenoj 3D skeniranjem burgije od tvrdog metala korišćenjem Artec Spider 3D skenera. Dobijeni model je obrađen u softverima Geomagic Design X i CATIA V5 R21 sa ciljem uklanjanja geometrijskih nepravilnosti i pripreme modela z...

MODELIRANJE I KINEMATSKA ANALIZA PETOOSNE GLODALICE

Savremene višeosne obradne mašine zahtevaju detaljnu analizu kinematskih karakteristika u cilju provere funkcionalnosti konstrukcionih rešenja i optimizacije radnih performansi. U radu je prikazan konstrukcioni model petoosne glodalice i simulacija njenog kretanja u digitalnom okruženju. Na osnovu konstruisanog modela formiran je kinematski model mašine u softverskom paketu CATIA V5 R21. Simulacijom su dobijeni podaci o brzinama i položajima pojedinih osa mašine. Dobijeni kinematski podac...

ADVANCES IN ARTIFICIAL INTELLIGENCE AND DEEP LEARNING FOR NEUROSONOGRAPHIC AND CHEST X-RAY ANALYSIS OF PREMATURE INFANTS

Premature infants represent one of the most vulnerable patient populations in neonatology, frequently affected by severe neurological and respiratory complications that require rapid, reliable, and accurate diagnosis. Conditions such as hypoxic-ischemic encephalopathy (HIE) and respiratory distress syndrome (RDS) are among the leading causes of morbidity and mortality in premature newborns, often associated with long-term developmental and health consequences. Early detection and continuous m...

Pest-specific chemical strategies for the management of Aleurocanthus spiniferus (Quaintance, 1903) in mandarin orchard supported by on-site chlorophyll assessment

In southern Montenegro, Aleurocanthus spiniferus (Hemiptera: Aleyrodidae) is an important Citrus pest. A field experiment was conducted in a Satsuma mandarin (Citrus unshiu Marcow.) orchard to evaluate the efficacy of chemical treatments for A. spiniferus control and to assess impact induced by this pest in plant leaves using portable chlorophyll meter-SPAD. Two insecticide applications were carried out, the first in June and the second in August in 2024 and 2025. During the first tre...