Savka Z Adamovic | University of Novi Sad, Faculty of Technical Sciences (original) (raw)

Papers by Savka Z Adamovic

Zbornik radova Fakulteta tehničkih nauka/Zbornik radova Fakulteta tehničkih nauka, Feb 4, 2024

Oblast-GRAFIČKO INŽENJERSTVO I DIZAJN Kratak sadržaj-Procena rizika za operacije i radne mašine t... more Oblast-GRAFIČKO INŽENJERSTVO I DIZAJN Kratak sadržaj-Procena rizika za operacije i radne mašine tokom izrade flekso štampanih kompostabilnih kesa primenom Kinney metode je sprovedena u radu. U cilju procene rizika odrađene su: identifikacija opasnosti, kao i kvalitativna i kvantitativna analiza odabranih faktora i samog rizika. Takođe je u radu prikazan i predlog bezbedonosnih mera za sprečavanje ili otklanjanje rizika u radnom i životnom okruženju.

Proceedings of 9th International Symposium on Graphic Engineering and Design, 2018

The objective of the study is to evaluate the indoor air quality in digital printing facility dur... more The objective of the study is to evaluate the indoor air quality in digital printing facility during the three working weeks (120 hours). For that purpose, mass concentrations of suspended particulate matter of diameter less than 10 μm (PM10) were monitored in addition to single-color and four-color digital machines. The cumulative mass concentrations values of PM10 for single-color digital machine were in the range from 1.36 to 9.90 μg/m 3 , and they are almost 1.4 and 2.2 times higher compared to the same values for the four-color machine (0.97-4.44 μg/m 3). The obtained results could be useful for the risk assessment of indoor exposure to suspended PM10 particles, and for the creation of printing indoor air quality guidelines of the Republic of Serbia.

The electrocoagulation (EC) treatment of the waste printing developer in laboratory conditions wa... more The electrocoagulation (EC) treatment of the waste printing developer in laboratory conditions was produced the sludge with a high amount of copper. The solidification/stabilization (S/S) treatment of electrocoagulation sludge (ECS) has been conducted with four immobilization agents: Portland cement, calx, bentonite, and local clay. The efficiency of the S/S treatment was monitored by applying standard German (DIN 38414-4) leaching test. The characterization of ECS in terms of its toxicity was evaluated by comparing the copper concentration levels in the leaching solution with maximum allowed concentrations according to current regulations.

Formaldehyde (FA) is a chemical traditionally used in pathology and anatomy laboratories as a tis... more Formaldehyde (FA) is a chemical traditionally used in pathology and anatomy laboratories as a tissue preservative. Several epidemiological studies of occupational exposure to FA have indicated an increased risk of various types of cancer in industrial workers, embalmers and pathology anatomists. Based on the available data IARC, the International Agency for Research on Cancer, has recently classified FA as a human carcinogen. This paper presents the results of the quarterly monitoring of concentration levels of formaldehyde in the working premises of the Department of Anatomy at the Medical Faculty. Air monitoring was performed in order to evaluate occupational exposure to FA. The measurements of concentration levels of formaldehyde were conducted at five locations inside the Department in order to assess the exposure level and cancer risk of students and employees of the institution. The level of exposure to FA was evaluated near the breathing zone of workers. The calculations indi...

Универзитет у Новом Саду, Sep 9, 2016

The validation of the extraction method is significant for the characterization of the offset eff... more The validation of the extraction method is significant for the characterization of the offset effluent and the selection of an adequate effluent treatment for its safe disposal in a printing environment. For the aforementioned reasons, the qualitative characterization of the organic load profile of the waste offset developer was evaluated based on the application of two liquid/liquid (L/L) extraction methods. The gas chromatographic/mass spectrometric (GC/MS) method was used for the qualitative detection of the organic compounds present in the offset effluent. The cumulative qualitative GC/MS profile of organic substances in the waste offset developer indicates that the effluent contains 69 organic compounds with a probability of presence higher than 70% according to the AMDIS software and the NIST database.

In this research, the electrocoagulation/flotation (ECF) reaction kinetics of organic substances ... more In this research, the electrocoagulation/flotation (ECF) reaction kinetics of organic substances removal from the waste fountain solution was investigated. The ECF reaction kinetics of the organic substances removal from the printing effluent can be described by a pseudo-second rate equation. Obtained results have shown that the trend of decrease in pseudo-second order constant for organic substances removal follows the trend of decrease in the efficiency of electrode combinations (Fe(-)/Al(+) > Al(-)/Fe(+) > Al(-)/Al(+) > Fe(-)/Fe(+)) and current density (8 > 4 > 2 mA cm-2 ) of the ECF treatment.

International Journal of Environmental Analytical Chemistry, Jun 10, 2020

The digital printing process contributes to the quality of indoor air through the emission of che... more The digital printing process contributes to the quality of indoor air through the emission of chemical stressors such as total volatile organic compounds (TVOCs) and suspended particulate matter (SPM). The concentration levels of SPM and TVOCs were determined using the gravimetric and gas chromatography method, respectively. The results show that the digital printing machines and the cutting machine do not produce PM 2.5 particles. The significant cumulative mass concentrations of PM 10 suspended particles of 9.91 μg/m 3 for a single-colour digital printing machine, 4.45 μg/m 3 for a four-colour digital printing machine, and 2.02 μg/m 3 for a cutting machine, were detected. By comparing the cumulative values of TVOC concentration levels measured, it can be concluded that the values have been 4 to 12 times higher for the four-colour digital printing machine than for the single-colour digital printing machine. Namely, the TVOC concentration levels measured for the four-colour digital printing machine ranged from 28.69 to 57.30 mg/m 3 , while the values for the single-colour digital printing machine ranged from 2.31 to 13.51 mg/m 3. Considering the fact that there are no standards of quality of indoor air in printing offices defined in the Republic of Serbia, the results obtained could represent a valid basis and a worthy guideline for the definition of values necessary for the indoor air quality assessment.

Today, 3D printing is taking its constantly growing part in a lot of different manufacturing indu... more Today, 3D printing is taking its constantly growing part in a lot of different manufacturing industries, educational institutions and a lot of entrepreneurship and home businesses. Besides prototyping and proof of concept, utilization of 3D printing is undoubtedly spreading its roots in manufacturing of production and spare parts but also in aiding research and teaching processes. 3D printing has reinforced the self-employed segment of market called makers but also has influenced forming a significant number of educational online video channels. A lot of crowdfunded web sites promote affordable desktop 3D printers and 3D modellers and designers who design models exclusively for 3D printing, taking its specificity into account. Also, a community of designers, through 3D printing hubs where their work can be purchased, are thriving. There is also a massive trend in developing new materials for 3D printing such as electrically conductive composites, fire-resistant materials and materials with high strength or resilience. In the graphic industry, there is some progress regarding the utilization of 3D printing in the form of tactile maps and picture books, manufacturing customizable packaging, embossing tools, making parts for colour measuring equipment and printing of textiles. However, there is undoubtedly undiscovered usage intended for improvements in this branch of industry. The first part of this research aims to present existing researches and projects regarding the usage of 3D printing in creative and interdisciplinary industries such as graphic industry. The second part of this paper focuses on different initiatives in aiding educational process worldwide, and some of the methodology of implementing 3D printing in education. In the final part of this research, the potential of 3D printing for educational purposes of graphic engineering and design students is discussed. Methodology for getting theoretical and practical knowledge is proposed through a designed catalogue of 3D printing parameters. The purpose of this catalogue is to introduce undergraduate students with one of the most used and affordable 3D printing technique known as Fused Deposition Modelling (FDM) and to provide them with basic knowledge of 3D printing parameters which further on can be expanded and supplemented.

Embossing technique is an essential operation in the print finishing process. It entails permanen... more Embossing technique is an essential operation in the print finishing process. It entails permanently changing the shape of the paper surface by applying pressure with the embossing die, so as to create a recessed or raised image. Embossing dies are made using conventional techniques such as chemical etching or milling. These techniques in the production of conventional embossing die imply the use of different machines and devices, plenty workspace, and often insufficient flexibility in quick job changes. By replacing conventional with additive manufacturing techniques, these problems imposed by the market can be overcome to a great extent. Using additive manufacturing techniques in embossing dies production process requires prior understanding of factors influencing mechanical and physical properties of produced samples. Fused Deposition Modelling (FDM) technique is commonly used in additive manufacturing due to its simplicity and availability. The surface roughness of FDM produced embossing dies is an important factor which can alter the quality of the embossed paper material. Excellent mechanical properties of the die are also required due to pressure forces applied in the embossing process. This paper aims to investigate the influencing process factors in FDM additive manufacturing found in current scientific researches and implement these findings for embossing dies production. Influence of these factors on surface roughness, tensile and compression strength, the quantity of used material and production time were investigated. Findings imply that vast variety of process factors influence chosen dependent variables of samples printed with FDM technique. Many researchers have investigated these factors, but mainly in the field of industrial engineering, electronics and bioengineering. Hence, the importance of this paper is in finding a way to implement these findings in the field of graphic engineering and design.

JGED, Jun 1, 2022

In this work we wanted to determine how students of Graphic engineering and design perceived onli... more In this work we wanted to determine how students of Graphic engineering and design perceived online learning a year after the transition from traditional to online classes. The goal was to better understand problems, challenges, and good sides of online learning in this study field, and determine factors that impede knowledge transfer. The students' responses were collected via an anonymous online survey, which consisted of a series of questions that covered: conditions in which online classes are attended, communication channels, problems and how they are dealt with, understanding and motivation. The biggest challenges for our students were to sustain their attention and concentration during classes despite the distractors in their environments, and to keep their motivation despite the lack of direct interaction, social isolation, and too much computer time. Their technological and digital literacy were of great use in adapting to the online platforms and applications, as well as in solving technical problems that prevented them from following the classes. Even though online courses allow students to be more flexible and potentially combine work and study, most of our students do not think that their attendance and engagement in the studies increased in the last period. It is also undisputed that our students were dealing with a lot of stress and anxiety and that their emotional state highly influenced their perception of online learning. Hence, we firmly believe that apart from making online courses more engaging and interactive, it is of utmost importance to find a proper way to motivate and psychologically support students in the online learning environment, especially in times that require a high degree of resilience.

Book of Abstracts, 2023

Jasna Paradiž, Determining the genetic vulnerability of plants due to ionizing radiation: a compr... more Jasna Paradiž, Determining the genetic vulnerability of plants due to ionizing radiation: a comprehensive analysis of the cytogenetic balance and responses of the Allium root meristem to various radiation doses .

Proceedings - The Eleventh International Symposium GRID 2022

The concentration levels of ground-level ozone in the flexographic printing plant were determined... more The concentration levels of ground-level ozone in the flexographic printing plant were determined in two campaigns during five working days. The first campaign was conducted in the middle, and the second at the end of the eight-hour working time. In the second campaign, the mean ozone values per day (3.81, 3.60, 4.25, 4.71, and 3.18 μg/m3) were almost two times higher than in the first. Still, they were 32 to 47 times lower than the emission limit value prescribed by the Regulation of the Republic of Serbia.

Zbornik radova Fakulteta tehničkih nauka/Zbornik radova Fakulteta tehničkih nauka, Feb 4, 2024

Proceedings of 9th International Symposium on Graphic Engineering and Design, 2018

Универзитет у Новом Саду, Sep 9, 2016

International Journal of Environmental Analytical Chemistry, Jun 10, 2020

JGED, Jun 1, 2022

Book of Abstracts, 2023

Proceedings - The Eleventh International Symposium GRID 2022