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Bielinski K.S.,University Technologiczno Przyrodniczy dgoszczy
Rynek Energii | Year: 2012

The study presents general concept of active monitoring as a tool supporting energy management. The paper indicates difference between active and passive monitoring, it also asserts significance of active monitoring for effective energy management. Source

Zoltowski M.,University Technologiczno Przyrodniczy dgoszczy | Martinod R.M.,EAFIT University
Multidiscipline Modeling in Materials and Structures | Year: 2015

Purpose - The recommendation of structural standards, e.g. PN-B-03002, shows a need to control the production quality of wall-elements; the quality control demands suitable guidelines to fit the requirements of the current mass-production of the wall-elements, then, the structural standard recognizes the need of improving the methods to identify the real elements quality. The paper aims to discuss these issues. Design/methodology/approach - The proposed inspection methodology corresponds to assessment models that combine the numerical and symptomatic models to evaluate the critical levels of wall-elements, based on non-intrusive tests through the measurement of a set of signals, using the Experimental Modal Analysis (EMA)-based techniques. Findings - The presented work is developed with an approach that applies advanced calculating techniques used for the structural analysis in civil engineering focused on the technical state assessment. Originality/value - The paper proposes a diagnostic methodology that can be added to the current regulations and standards based on EMA techniques. © Emerald Group Publishing Limited. Source

Bartkowiak A.,University Technologiczno Przyrodniczy dgoszczy | Lemanowicz J.,University of Technology and Life Sciences in Bydgoszcz
Scientific Review Engineering and Environmental Sciences | Year: 2014

The paper presents the results on the effect of uncontrolled garbage damps located on sandy soils of the Kujawy and Pomorze Province on the content of phosphorus and selected heavy metals (Zn, Cu, Ni and Cr) assayed in the extract of 0.01 M CaCl2. It was found that illegal damping resulted in the changes in the physicochemical properties of the soils analysed. In the soil surface horizons waste 100 m distance from the waste dump there were higher contents of organic carbon, phosphorus and cooper. The waste stored in the area of the damps investigated did not show a considerable effect on the contamination of soils with heavy metals and their content was connected with the biogeochemical cycle in nature. The analysis of variance showed a significant effect of the factors studied (objects and soil sampling depth) on the changes in the content of Corg, P, Zn, Cu, Cr as well as Ni. High values of the coefficients of variation (CV%) of the parameters showed a high heterogeneity of the results. With the factors applied the content of the heavy metals assayed comes in a following series: Cr > Zn > Ni > Cu. Source

Bielinski M.,University Technologiczno Przyrodniczy dgoszczy | Muzyczuk P.,Centrum Onkologii W Bydgoszczy
Polimery/Polymers | Year: 2011

Studies on the blow molding processing and selected compression properties of thermoplastic polymers have been presented. The compression strength of polypropylene (PP) obtained in the extrusion blow molding process with 0 ÷ 2 wt. % content of blow agents of endothermic decomposition character has been determined (Fig. 5). Samples of dimensions h-30mm andφ- 20 mm, (Figs. 1 and 2) were subjected to compression in a test apparatus (Fig. 3) under steady loading/unloading cycles (dual ramp) in the 0 ÷ 30 kN range and also in a stepwise loading/unloading procedure (every 5 kN with breaks) in the 0 ÷ 25 kN range (Fig. 4). The performance of selected polymeric products were determined on the basis of stress/strain curves and the following determined relations: the dependence of strain of the studied samples on the static load values obtained for various amounts of blowing agent feed (Figs. 6-11), Young's compressive modulus on the amount of blowing agent (Fig. 12) and also work done during the compression on the amount of blowing agent (Fig. 13). The dependence of the relative deformation of porous PP on the increase in values of the parameters of steady loading/unloading cycles was also determined. Source

Analytic method for sensor network analysing, which nodes communicate using of Hot Potato protocol is presented in this paper. Although the use of the method is explained on the example of seven-nodal network, the presented method has no limit to the number of nodes in the network. It was explained, why Hot Potato protocol can be used in WSN networks as primary or backup protocol. Wireless access network of telemetry system was treated by the Authors as a special case of WSN network. Source

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