Zenica, Bosnia and Herzegovina
Zenica, Bosnia and Herzegovina

University of Zenica is a public university located in the city of Zenica, Bosnia and Herzegovina. The university was founded in 1961 as college and became a proper university in 2000. Wikipedia.

Time filter

Source Type

Cardiff P.,University College Dublin | Karac A.,University of Zenica | Ivankovic A.,University College Dublin
Computational Materials Science | Year: 2012

This paper describes the development and application of a frictionless contact stress solver based on the cell-centred finite volume method. The contact methodology, implemented in the open-source software OpenFOAM, is derived from the penalty method commonly used in finite element contact algorithms. The solver is verified on two benchmark tests using the available Hertzian analytical solutions. © 2012 Elsevier B.V. All rights reserved.

Tukovic Z.,University of Zagreb | Ivankovic A.,University College Dublin | Karac A.,University of Zenica
International Journal for Numerical Methods in Engineering | Year: 2013

Correct calculation of stresses at the interface of bonded or otherwise joined materials plays a significant role in many applications. It is therefore important that traction at the material interface is calculated as accurately as possible. This paper describes procedures that can be employed to achieve this goal by using centre-based finite-volume method. Total traction at the interface is calculated by decomposing it into normal and tangential components, both being calculated at each side of the interface, and applying the continuity assumption. The way in which the traction approximation is achieved depends on calculation of tangential gradient of displacement at the interface. To this end, three different methods are proposed and validated against problems with known solutions. It was shown that all methods can be successfully used to simulate problems with multi-material domains, with the procedure based on finite area method being most accurate. © 2012 John Wiley & Sons, Ltd.

Cardiff P.,University College Dublin | Karac A.,University of Zenica | Ivankovic A.,University College Dublin
Computer Methods in Applied Mechanics and Engineering | Year: 2014

This paper describes a finite volume method for orthotropic bodies with general principal material directions undergoing large strains and large rotations. The governing and constitutive relations are presented and the employed updated Lagrangian mathematical model is outlined. In order to maintain equivalence with large strain total Lagrangian methods, the constitutive stiffness tensor is updated transforming the principal material directions to the deformed configuration. Discretisation is performed using the cell-centred finite volume method for unstructured convex polyhedral meshes. The current methodology is successfully verified by numerically examining two separate test cases: a circular hole in an orthotropic plate subjected to a traction and a rotating orthotropic plate containing a hole subjected to a pressure. The numerical predictions have been shown to agree closely with the available analytical solutions. In addition, a 3-D composite component is examined to demonstrate the capabilities of the developed methodology in terms of a variable material orientation and parallel processing. © 2013 Elsevier B.V.

Serdarevic N.,University of Sarajevo | Zunic L.,University of Zenica
Acta Informatica Medica | Year: 2012

Background: Cyclosporine has been shown effective drug in suppressing acute rejection in recipients of allograft organ transplants. Methods: The cyclosporine concentration of 96 blood samples was determined using CMIA (chemiluminesecent microparticle immnoassay) Architect i 2000 and FPIA (fluorescence polarization immunoassay) AxSYM Abbott diagnostic. All patients have transplantation of kidneys and were hospitalized at Department of Nephrology at the Clinical center of University of Sarajevo. The reference serum range of cyclosporine for kidney organ transplantation for maintenance lies between 50 and 150 ng/mL. The quality control, precision and accurancy of Architect i 2000 were assessed. Results: The quality control was done using quality control serums for low (= 91 ng/mL), medium (= 328 ng/mL) and high (= 829 ng/ mL). We have used commercial BIORAD controls and got reproducibility CV 5.83 % to 13 % for Architect i 2000. It was established that the main difference between Architect i 2000 and AxSYM and it was statistically significant for P < 0.05 according to Student t-test. Correlation coefficient was r = 0.903. Conclusion: The CMIA Architect assay has significant reduced cyclosporine metabolite interference relative to other immunoassay and is a convenient and sensitive automated method to measure cyclosporine in whole blood. © Avicena 2012.

Ekinovic E.,University of Zenica
Proceedings of ISMA 2010 - International Conference on Noise and Vibration Engineering, including USD 2010 | Year: 2010

The paper presents an approximate technique for damage identification in beam-like structures on the base of bending frequency changes. The identification of damage location and its depth relays on previously established numerical model and regression relations between changes in natural frequencies and damage parameters. The damage is simulated as a narrow open notch perpendicular to the beam axis. The proposed technique was validated through numerical and experimental data for a series of damage scenarios.

Oruc M.,University of Zenica
Medicinski arhiv | Year: 2012

Appendicitis is one of the most common diseases that require urgent surgical intervention. Due to its position, the inflamed appendix can cause many complications in abdominal cavity. Most of these complications are based on the anatomical position of the appendix. According to world literature over 65% of the anatomical positions of appendix is retrocaecal position, followed paracaecal and then the other positions of the appendix in different percentages. The main goal of this research is to shown that anatomical retrocaecal position of the appendix can lead to prolonged hospitalization and more often occurrence of appendicitis complications. The research is based on patients who had appendectomy during 2009 at the Cantonal Hospital Zenica and General Hospital Tesanj. The study included approximately 400 respondents and the method of research was of retrospective, descriptive and analytical type. According to the results of this research we can conclude that in our country is not devoted enough attention to the anatomic position of the appendix and that we are not using enough diagnostic methods such as ultrasound and CT in determining the anatomic position to help determine the course of the disease. Retrocaecal appendix position according to the obtained data from this study did not cause many complications in classical appendectomy but this can be attributed to insufficient observation of the anatomical position of the appendix.

Tandir S.,University of Zenica
Medicinski arhiv | Year: 2011

Reporting on infectious diseases is one of the most important measures for controlling the infectious diseases. In Bosnia and Herzegovina is in the implementation an archaic system of reporting, older than 20 years, which is incorporated into the partially reformed health system. The aim of this study is to determine and analyze the quality of keeping records of communicable diseases and quality of data obtained. It also sought to identify weaknesses in the system that contributes to poor reporting and poor data quality. The study was retrospective-prospective, descriptive and analytical. Data were collected during June 2010 from all health facilities of Zenica-Doboj Canton. The data are collected from regular reports from medical institutions, received reports on contagious diseases, examination of 12.5% of the medical records of patients who were examined in June 2010, and the survey on 19% 9% physicians and 9% nurses. The survey showed that about 40% of infectious diseases do are not reported by individual application forms. Most often not reported are fungal infections (99.7% unreported) and intestinal infectious diseases. From found diseases in a sample of medical records reviewed, only 1.4% of them were reported. Health professionals in 51% agree that reporting is not satisfactory, and in 49% of the cases agree that the great merit of this situation have the management of health institutions and local epidemiologists who do not organize professional meetings regarding the reporting on infectious diseases. A large number of health professionals (40%) do not fill properly report on the illness, so we have a 58% incorrectly filled forms that arrived in the Institute of Public Health. The health workers from Zenica-Doboj Canton did not sufficiently developed awareness about the need to report infectious diseases. In order to overcome this situation, management of health care institutions must have a responsible attitude towards the medical documentation and records, and binding continued medical education of health professionals to raise awareness about the importance of proper medical documentation management.

Muminagic S.N.,University of Zenica
Medicinski arhiv | Year: 2011

During the First World War and the Second World War more than 80 % of wounded persons had injuries of upper or lower limbs. In the recent war in the Former Yugoslavia the percentage of persons with these injuries was above 80%. Each war is also characterized by the high percentage of wounded persons with amputations of upper or lower extremities. These amputations occurred mostly in the cases of polytrauma. In other cases we faced with severely wounded extremities with an extensive destruction of soft tissues, bones, blood vessels and joints, where the amputation is the only possible intervention to save the patient. In the previous World Wars, the surgeons have tried to shorten the time of treatment and to accept the surgical technique, by the application of primary suture of the wound. During the aggression on Bosnia and Herzegovina we were faced with a large number of wounded persons with amputations i.e. cases where we applied the primary suture. The results were still surprising and in many cases the wounds had primarily healed. The results were better when they were using primary suture on the upper extremities, measured at 61.9 % while the percentage of using the same suture on the lower limbs was of 48.8 %. The results of the war year 1995 were improved in comparison to the percentages listed above. The statistical analysis indicated that early application of the primary suture to the amputation wound was possible and largely successful, but, only when performed under certain conditions.

Mahmutovic A.,University of Zenica
Metalurgija | Year: 2014

This paper has researched into the infl uence of trace elements in steel, combined with new casting processes, on the microstructure and micro-segregation phenomenon in the case of structural steel. Thermocalc software has been applied for calculation of steel phase. In the paper, close attention has been paid to monitoring of the infl uence of the cooling rate in regard to solidiĀ cation time and to the characteristic elements' segregation coeffi cient. Higher cooling rates during solidiĀ cation improve the microstructure and produce positive eff ects on the metallurgical quality of the steel cast.

Agency: Cordis | Branch: FP7 | Program: MC-CIG | Phase: FP7-PEOPLE-2013-CIG | Award Amount: 100.00K | Year: 2014

This project will provide a unique opportunity for the researcher to return from Australia in his native country, and simultaneously steer his career in a new direction - the emerging research field of digital humanities (DH). DH tools are becoming common components of university environments, promising advanced cyber-infrastructure for future research and teaching in the humanities. However, in order to align DH activities to everyday university settings, we need a better understanding of information behaviour (IB) of scholars and students in these digital environments. The aim of this project is to bring together insights from the fields of IB and DH. The final outcome of the project will be a new model for design of DH applications, informed by an alternative interdisciplinary approach to IB and DH, based on actor-network theory, and by the empirical results of the two in-depth case studies. This will be achieved through a combination of empirical, theoretical, and action research, integrated into the main objectives of the study: 1) to investigate information behaviour in digital humanities activities of scholars and students at the host university; 2) to build a theoretical model for design and management of digital humanities applications, based on theoretical insights from several research fields, and the empirical knowledge gained by the objective 1; and 3) to transfer knowledge to the host through an action research (development of a new DH course and a prototype of a digital textbook for the course) which will also enable an evaluation of the outcomes of the objectives 1 and 2. The project is thus timely and relevant to the efforts of FP7 and the Horizon 2020 to build digital research infrastructure for the humanities, enabling new interdisciplinary ways of research that were not possible in the analogue world.

Loading University of Zenica collaborators
Loading University of Zenica collaborators