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Varaždin, Croatia

The basic task of the transport infrastructure planning within the physical planning documents is to ensure adequate availability to all facilities. In order to achieve theoretical and practical requirements for ensuring an adequate access to the transport attraction zones, it is necessary to choose quality methodology of defining connections to the focuses of development (attraction zones) and thus to establish adequate transport routes according to the levels and modes of transport. Based on the aforementioned, an adequate transport network is generated. This paper presents one of the possible models for defining the transport desire lines grid applied in the Physical Plan of the Primorje-Gorski Kotar County. © 2014, Strojarski Facultet. All rights reserved. Source

Measuring process of acoustic quality parameters in sound control room in order to determine the best setup is described. Measurements of six sound control rooms impulse response have been made. The measurements are executed in accordance with the standard ISO3382. In all sound control rooms the same measurement method is used, but the measurement setups are changed. In the first scenario built-in monitor loudspeakers were used. In the second scenario, omnidirectional sound source was used. Omnidirectional measuring microphone and an artificial head were used as receivers. They were placed at the optimal listening position. Principal components analysis method is used to get the most accurate result from measured data obtained under different scenarios and measuring setups. Hence, the measuring conditions and setups which determine the value of subjective assessments of the sound control room are obtained. The results shall be used to calculate correlation between objective measurements and subjective assessments. © 2015, Strojarski Facultet. All rights reserved. Source

Fajt S.,University of Zagreb | Krhen M.,University of Zagreb | Milkovic M.,University North
Tehnicki Vjesnik | Year: 2015

Objective parameters of the room acoustics quality are obtained from the impulse response, which is measured using the appropriate PC based acoustic measurement system with two types of loudspeakers. Such measurement gives the impulse response that is the result of measurement of the entire system, which consists of the room and electro acoustics equipment. In order to investigate the real influence of loudspeakers on the measurement results, the research was made in the same measuring conditions. Impulse responses were measured with the same measuring system. Measuring point was selected at the optimum listening position in the room, and all measurements were carried out in the same place. The loudspeakers were placed at the optimum and characteristic positions in the room, and rotated around their axes in order to determine the impact of their position and directivity characteristics on the measurement of objective parameters of room acoustic quality. © 2015, Strojarski Facultet. All rights reserved. Source

Research was conducted during the incineration of six different biomass groups, whereat each group was observed for three cases of average initial moisture level for the purpose of quantifying the values of impact parameters and contribution to the correlation between biomass quality and the efficiency of a thermal power system. A hot water plant with the power to heat ratio amounting to Q = 600 kW was used, which included a district heating system of a low-accumulation object with a low thermophysical constant and a low time constant. Research was conducted in 18 equal cycles at low outside air temperatures and a maximum need for useful thermal energy. Quantified values showed the consumption of all groups of all average moisture levels of biomass. By analysing the examined temperature of a heating medium and flue gases during the combustion of each biomass group, a direct influence of its quality and average moisture on the sustainability and stability of the district heating system was shown. The most favourable biomass was proposed. Direct application of research results contributes to correct determination of the type, composition and average moisture of biomass, as well as a higher efficiency of the whole thermal power system. © 2015, Strojarski Facultet. All rights reserved. Source

Brajkovic L.,University of Zagreb | Afric W.,University North | Afric V.,University of Zagreb
2015 38th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2015 - Proceedings | Year: 2015

Role-playing, besides its use as a gaming media, can also be used as a powerful simulation tool. Due to its versatile nature and all the possibilities that it can offer us in building imaginary worlds and situations, we can also apply that technique to simulate real life and realistic behaviour. In project and knowledge management it is possible to use Role playing for optimization and building specific knowledge. Applying the simulation in advance, can greatly help us to recognize, prepare and solve most problems that may occur, reducing overall cost and time of any project. © 2015 MIPRO. Source

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