Sustainability Development of Smart Public Transportation in Globalization

The paper studies the sustainable development opportunities of the public passenger transport market in the globalized environment. The main aim of the research is to improve the competitiveness of sustainable public transport. Transportation needs to be considered as an important aspect of the development of cities in a sustainable manner and for an attempt to create a smart city. Those cities care about inhabitants, apply environmentally acceptable methods of waste management, offer more efficient public transportation, health care, and social system. Many studies have shown the relationship between effective public transportation services and sustainable development at the city level. European Commission is trying to motivate all the regional administration in an overall acceptance of sustainable urban mobility plans as part of the strategic vision for solving pressing problems in the process of functioning of modern cities. The purpose of this study is to present a concrete step in achieving the objectives of the "smart city" concept with the use of modern information technology in the traffic and passengers in the real-time monitoring process, tickets issuing, as well as passengers informing in Subotica, Serbia. There is a wide gap between community expectations from public transportation services and the actual quality of service provided. The resulted grounded theory has brought attention to the necessary reform of transportation institutions; transportation policy which is integrated into settlement development of the smart city strategy and consistency of economic systems; public transportation development proceeding from supply improvement; and finally, the need of awareness improvement via education. The research conclusion is a necessity of external fund allocation through emerging means of liberalization and public-private partnership and the introduction of the more demand responsive transportation system while taking into account sustainable consumption as well

Agile Management of IT Projects by Modified Scrum Processes

Scrum is the result of evolution in product development originating from the Japanese management system and process improvement (kaizen) and the Toyota production system from middle of the 20th century. However, Scrum is not the end result but a constant evolution. The purpose of this paper is an attempt to add new knowledge to this evolution. There are numerous alternatives to Scrum process and rules, commonly called hybrids. It is important to be aware that one approach or process cannot be a solution for every software development project. The key is to find a balance between the processes and the people, policies and the principles, as well as focus on long-term or short-term goals, etc. This problem is one of the biggest challenges widely discussed in present-day scientific and industrial communities

WAVELET-BASED AUDIO FEATURES OF DC MOTOR SOUND

The usage of wavelets is widespread in many fields nowadays, especially in signal processing. Their nature provides some advantages in comparison to the Fourier transform, and therefore many applications rely on wavelets rather than on other methods. The decomposition of wavelets into detail and approximation coefficients is one of the methods to extract representative audio features. They can be used in signal analysis and further classification. This paper investigates the usage of various wavelet families in the wavelet decomposition to extract audio features of direct current (DC) motor sounds recorded in the production environment. The purpose of feature representation and analysis is the detection of DC motor failures in motor production. The effects of applying different wavelet families and parameters in the decomposition process are studied using sounds of more than 60 motors. Time and frequency analysis is also done for the tested DC motor sounds

The Development of the Employer Brand in the Labour Market

Nowadays, the lack of high qualified staff is more conspicuous than ever before. The development of new knowledge and professions is followed by the modern technological changes, enormous usage of Internet and development of artificial intelligence. These trends have led to changes in the behaviour and access of both sides in the labour market. Candidates who have specific knowledge, skills and experience have the opportunity to choose the companies they want to work in, setting the conditions for employers. Companies, employers, who need some special skills are forced to make an effort to stand out and attract the attention of the target group. Therefore, the branding activities of the employer became crucial in a modern labour market. The aim of the paper is to identify the dimensions of attractiveness in branding employers and the levels of importance of each dimension. The results of the survey indicate that candidates are looking for many additional information about the employer. Each generation has certain ways and channels of gathering information that it considers credible. If employers do not recognize or ignore those channels, they miss the possibility of establishing and building relationships with candidates before employment itself. This work is licensed under a&nbsp;Creative Commons Attribution-NonCommercial 4.0 International License.</p

Structural changes at rotation friction welding of various steel types

Korišćenjem metoda optičke mikroskopije, kvantitativne optičke mikroskopije SEM i EDS analize izvršena su ispitivanja strukture, kao i analiza faznog i hemijskog sastava, kod trenjem zavarenih spojeva brzoreznog čelika Č 7680 sa ugljeničnim čelikom za poboljšanje Č 1730.By using the methods of optical microscopy, quantitative optical microscopy SEM and EDS analysis, the tests of structure were carried out, as well as the analysis of both phase and chemical composition, of joints welded by friction of the HSS steel M-2 with carbon steel for improving 1060

Factors with Impact in the Assessment and Choice of Tourist Destinations

The preference disaggregation approach to the problem of multicriteria choice is to uncover the inherent model of choice that brings a decision unit to a conclusion in terms of an overall preference on the alternatives. In the context, the actual market shares of a class of competing products (alternatives) constitute a concise global variable originated in and reflecting the cumulative preferences of the consumer body, which affects the pattern of the market. This paper presents a systematic method to analyse the preference information cumulated in the actual market shares of competing products in terms of the criteria involved in the process of choice. The aim of this study is to present an entirely new approach to the problem of multicriteria choice and an application to analyse the market of tourist agency destination offer. In the paper outlines the market share analysis methodology for building an additive utility model in situations concerning attributes on which preferences behave monotonically. When contemporary information and communication technologies are included into the processes of choosing then electronic word-of-mouth (e-WOM) communication appears, while specific marketing messages are being created and transferred. The paper ends with some concluding remarks. This work is licensed under a&nbsp;Creative Commons Attribution-NonCommercial 4.0 International License.</p

Scientific software for luminescence by OMAS group

Luminescent materials, simply called phosphors, are used in multi-billion-dollar industries of LEDs, displays, fluorescent lamps, lasers and optical sensors. Our group OMAS which is an abbreviation for Optical Materials and Spectroscopy investigates the fundamental properties of phosphors and their applicability for LEDs, lasers, and temperature sensing. Temperature causes changes in all spectral features of phosphors. If the activator ion in phosphor material is a lanthanide, then intensities, quantum efficiencies and radiative lifetimes can be theoretically predicted by the Judd-Ofelt theory. By using theoretical models of temperature-dependent spectral characteristics and Judd-Ofelt theory, one can predict, simulate, and explain the properties of the phosphor light emission. However, there are numerous models and equations that may differ among various materials. Thus, doing the above-mentioned task manually is cumbersome to say at least, and in some cases even impossible. The scientific and industrial progress in modern times greatly relies on collaboration with IT, which is also the path the OMAS group undertook as a solution to this problem. For every computationally difficult task the OMAS group encountered in research, the specialized software is built to help resolve it, and the solution was always shared with other researchers in a form of publications, data shares, and via www.omasgroup.org. All the software that was developed by the OMAS group will be presented here. LumTHools is the most recently published stand-alone desktop application for modelling the temperature-dependent phenomena in luminescence and luminescence thermometry. It fits the experimental data to one of the many theoretical functions and provides the needed physical parameters and figures of merit. It was built in python and Java. OMAS used Mathematica and MATLAB for many functions and applets. So far these small applications are capable of modelling temperature dependence of Mn4+ emission decay and application to the luminescence thermometry, interactive simulation and evaluation of the performances of the sensor probe by the luminescence intensity ratio method and Judd-Ofelt theory, predicting the phosphor emission colour by Eu3+ spectrum simulation from the JuddOfelt theory, and software for deconvolution of overlapping peaks of transition metals at multiple temperatures. To be able to apply the Judd-Ofelt theory for spectroscopic analysis, it is necessary first to obtain the 3 Judd-Ofelt parameters. This is done from a single spectrum, but various methods are depending on the investigated lanthanide ion. We have published PHP calculators of the Judd-Ofelt parameters on the OMAS group website for parametrization from the excitation spectrum of Eu3+ and the emission spectrum of Pr3+. JOES is a stand-alone desktop Java application for complete Judd-Ofelt analysis from the emission spectrum of Eu3+. OMAS group also programmed ATMEL microcontrollers for various tasks: for control of LEDs to obtain the desired spectrum or for heating/cooling stages. OMAS group over the course of several years published many, multiplatform, open source, free software using python, Java, PHP, Mathematica, C++ or MATLAB, for applications in luminescence analysis, thermometry, simulations or control of electronics. The software was published in prestigious journals and rewarded with a high number of citations.SCOM 2022 : 20th - 21st of October 2022, Belgrade

Synthesis and characterization of conducting polyaniline nanotubes in the presence of colloidal TiO2 nanoparticles

Conducting polyaniline nanotubes were synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in water, in the presence of colloidal TiO2 nanoparticles of an average diameter ~5 nm. Polyaniline-TiO2 nanocomposite has been characterized by the electrical conductivity measurements, thermogravimetric analysis, FTIR spectroscopy, scanning and transmission electron microscopies. The electrical conductivity of synthesized nanocomposite was 1.1 × 10–3 S cm–1, slightly higher than that of pure polyaniline prepared under the same conditions. Polyaniline nanotubes have an outer diameter of 45–230 nm nm, an inner diameter of 15–130 nm, and a length extending from 0.5 to 2.0 μm.Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry; Belgrade (Serbia); 24-28 September 200

Supplement to the phytogeographical studies of the rare and internationally significant species in the flora of Serbia, Kosovo and Metohija north

This paper reports the chorological data on 3 internationally significant floristic species in Serbia, in the Ibar river valley, Kosovo and Metohija North. Those are: Gladiolus palustris Gaudin, Himantoglossum caprinum (M. Bieb) Spreng. and Narcissus poeticus subsp. radiiflorus (Salisb.) Baker. It also reports new research findings on a rare species of vascular flora of Serbia - Phlomoides tuberosa (L.) Moench. The distribution of the mentioned species is shown in UTM 10 km X 10 km squares, based on the field researches, herbarium collections inspections and literature data. As the studied species belong to the group of internationally important and rare species, the familiarity with the status of their populations and degree of their vulnerability would present a good basis for monitoring their protection both in Serbia and Europe