STABILIZATION OF RED MUD WITH NATURAL MINERAL
The aim of this work was to examine the possibility of stabilizing red mud with a natural mineral, namely pyrophyllite shale, to the extent that it is not harmful to the environment, as well as the use of such a stabilized composite for the production of building materials such as bricks, in order to ultimately achieve a complete circular economy, ...
By Edina Ibrić, Vedran Stuhli, Enita Kurtanović, Mugdin Imamović
ELECTROCHEMICAL INFLUENCE OF NIFUROXAZIDE ON DEHYDROGENASE ACTIVITY
Nifuroxazide is an antimicrobial drug from the nitrofuran group, which is used in the treatment of acute bacterial intestinal infections. Its mechanism of action is based on the reduction of the nitro group in bacterial cells, which produces reactive metabolites that permanently damage enzymes and the genetic material of microorganisms. Enzymes of ...
By Safija Herenda, Nenad Vanis, Farzet Bikić, Edhem Hasković
HEALTH RISK ASSESSMENT POSED TO HEAVY METALS IN THE LANDS AND PLANT CULTIVARS OF ZENICA MUNICIPALITY, BOSNIA AND HERZEGOVINA
Estmating the risk to pulic health from heavy metals can help solve the basic questions about the potential dangers of exposure to them. This is the first study aimed to assess the health risk for the residents of the municipality of Zenica, on the land closest to the steel industry by examining the heavy metals Zn, Ni, Pb, Cd, Cr and Cu in t...
By Aida Šapčanin, Farzet Bikić, Muvedet Šišić, Vedran Stuhli
ASSESSING ANTIBACTERIAL EFFICACY OF NANOPARTICLES FROM THREE PLANT EXTRACTS AGAINST E.COLI AND STREPTOCOCCI IN URBAN WASTEWATER
Silver nanoparticles (Ag-NPs) obtained through green syntheses are gaining remarkable interestin water treatment due to their excellent chemical, physical, and biological properties. Ag-NPs weresynthesized using three plant extracts: Carica papaya, Vernonia amygdalina, and Perillafrustescens var as reducing agent, and 6 mM of silver nitrate as prec...
By Elton Yerima Ngu, Julson Ahmed Tchio, Kamseu Eli, Tsamo Cornelius
OPTIMIZATION OF PROCESS VARIABLES FOR THE PRODUCTION OF FATTY ACID METHYL ESTERS FROM BIGPOD SESBANIA SEED OIL
This study explores the potential of Bigpod Sesbania seed oil as feedstock for production of biodiesel. The extracted oil was transformed to biodiesel via transesterification reaction using potassium hydroxide as catalyst. The process variables methanol-to-oil molar ratio (4:1–8:1), catalyst concentration (0.1–0.5 wt%), reaction time (3...
By Bukar Wakil, Bello Usman Bagudo, Abdullahi Muhammad Sokoto, Halima Usman, Ibrahim Kabir Muduru, Nasiru Abdullahi Sani
INFLUENCE OF PROCESS PARAMETERS ON THE PHYSICAL AND MECHANICAL PROPERTIES OF EXTRUDED POLYSTYRENE
In this work, I aim to examine the various influences of process parameters on the physical andmechanical properties of extruded polystyrene. Since XPS belongs to the group of thermoplasticpolymers, its properties are significantly affected by thermal treatment, particularly temperatureand pressure. However, in addition to these key factors, this p...
By Sarah Lenasi
INVESTIGATION OF THE PORTEVIN-LE CHATELIER EFFECT IN AlMg ALLOYS: EFFECT OF TESTING RATE
The study investigates the Portevin–Le Chatelier (PLC) effect in the cold-rolled Al-Mg alloy EN AW-5754. The tensile tests were performed on dog bone specimens at test speeds of 10, 20, and 50 mm/min. Digital image correlation (DIC) and infrared thermography were used to monitor strain rate and temperature changes. The results showed a strong...
By Ivan Jandrlić, Lorena Mrkobrada
SYNERGY BY MOLYBDENUM AND NIOBIUM ON PERFORMANCE OF COLD WORK TOOL STEELS
For the die industry, where future products have a decisive role in material selection, the subject of steel is an area of interest with high innovation potential. With new production and processing technologies that prioritize knowledge, the quality of materials has improved significantly, and these developments continue. Material selection in die...
By Aslan Unal
DUCTILITY CAPACITY STUDY OF LARGE-SCALE, BUCKLING-RESTRAINED BRACES IN STEEL STRUCTURES
One of the new methods of anchoring steel structures is the use of large-scale buckling-restrained braces (BRBs) on the lateral system of this type of structure. This study investigates the behavior of BRBs and compares them with buckling braces. In this study, a two-dimensional frame with four stories and four spans was taken and analyzed in eight...
By Mohammad Amin Abdollahzadeh, Shima Shamekhi
INFLUENCE OF THE RATIO OF CALCIUM OXIDE AND SILICA ON MINERALOGICAL AND PHASE CHANGES OF SINTER FROM LIMONITE ORE
Improving the quality of iron ore sintering and adding specific components has positive effects on blast furnace productivity. Optimizing basicity in the blast furnace charge is one way to improve all indices of production processes. Adjusting basicity aims to achieve the formation of new phase compounds that are favourable for the metallurgical an...
By Amel Zahirović, Amira Pašalić