Vibrations are common phenomenon in the rotating machinery, which could carry important information about condition of the rotating machinery. All specific failures in rotating machinery have their own characteristics of the vibrations. By measuring and analysis of vibrations cause of increased vibrations could be determined. Since misalignment and rotating looseness have similar frequency spectrum characteristics, it is difficult to determine which one of the failures is present. When cause of increased vibrations is determined, it is possible to plan the future steps for the repairing and neutralising present cause of the possible failure. Process of vibration analysis followed by present cause of increased vibration in rotating machinery repairing is presented in this paper through example on the ventilation system for smoke drain in the thermal power plant. ARTICLE HISTORY Received 15.01.2018 Accepted 03.03.2018 Available 15.03.2018

This paper presents the use of Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method to determine the optimum process parameters in plasma arc cutting of stainless steel. Two input process parameters, cutting speed and plasma gas pressure are considered and experiments are conducted based on Taguchi L9 orthogonal array. After performing the experiments, the surface roughness, cut perpendicularity and kerf width are measured. The analysis of variance (ANOVA) are performed in order to identify the effect of each input process parameters on the output responses. The results indicate that TOPSIS method is appropriate for solving multi-criteria optimization of process parameters. Results also showed that cutting speed of 2500 mm/min and plasma gas pressure of 6 bar are the optimum combination of process parameters.

This paper presents the use of Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method to determine the optimum process parameters in plasma arc cutting of stainless steel. Two input process parameters, cutting speed and plasma gas pressure are considered and experiments are conducted based on Taguchi L9 orthogonal array. After performing the experiments, the surface roughness, cut perpendicularity and kerf width are measured. The analysis of variance (ANOVA) are performed in order to identify the effect of each input process parameters on the output responses. The results indicate that TOPSIS method is appropriate for solving multi-criteria optimization of process parameters. Results also showed that cutting speed of 2500 mm/min and plasma gas pressure of 6 bar are the optimum combination of process parameters.

Aim: Aim of article was to evaluate knowledge and practice of authorship issues among the academic population in the medical field. Material and methods: Article has an analytical character and includes 69 academic workers (from the medical field, with the status of a regular employee of the Faculty of Medicine or a professional associate) who responded to the survey. Results: Within the total number of respondents in the study, 34.8% of them were added as coauthors, although they did not have any input in the writing process. Even 47.8% of the respondents were under psychological pressure, that they have to add their superiors to the list of authors, though they did not have any contribution at any stage of the article preparation, while 29% of the respondents had a tacit agreement about mutual adding to the author’s list, and 36.2% added their superiors to the author’s list, in order that the first author would get a permission to publish the article in a certain journal. Conclusion: The relationship between the author, the mentor, the data processing person, the person providing the moral support etc. must be established, and not all of them has a place in the list of authors, they should be given special places at the end of the article, a space for acknowledgments, where these people may be mentioned. The consciousness of the academic community must change for the purpose of the concrete progress of the academic community and the scientific contributions of its members.

The development of medical informatics goes back to the second half of the twentieth century with the start of the automation of processes. Medical informatics education plays an important role in the education of health care providers and medical providers. Education in medical informatics is not only important for medical students but also for other medical staff at all professional levels of education. Integrating medical Informatics into the full spectrum of medical education is a vital step required for the understanding and practice of modern medicine. There are curricula in the field of medical informatics at many universities in Europe. Great roles in this field had the International Medical Informatics Association (IMIA) and – the European Federation for Medical Informatics (EFMI). Working groups of IMIA and EFMI defined and recommended concepts and methodologies of education for medical informatics on three levels. Generally in all European countries medical education at universities is organized on the basis of the Bologna concept, which has improved the quality of teaching process in plenty matters, but it has brought a big number of highly educated staff, that are younger than average, but also have average level of knowledge. Basically, the Bologna system has brought averageness we tried to escape from. With the introduction of the Bologna process in Bosnia and Herzegovina and other countries, a new process is being introduced which introduces a new curriculum, a greater number of subjects, a complemented systematization of knowledge and the need to correct past attitudes. Since the curriculum of medical informatics varies between countries and universities and faculties in the country, it is necessary to take steps towards the unification of the curriculum at the international level. Aim of the article is to show the status of medical informatics education in Bosnia and Herzegovina and Europe.