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Prešov, Slovakia

Antonyova A.,University of Presov | Antony P.,Apmikro | Joelianto E.,Bandung Institute of Technology
Journal of Engineering and Technological Sciences

In this research a measurement systemwas developedfor monitoring humidity and temperature in the cavity between the wall and the insulating material in the building envelope. This new technology does not disturb the insulating material during testing. The measurement system can also be applied to insulation fixed ten or twenty years earlier and sufficiently reveals the quality of the insulation. A mathematical model is proposed to characterize the dynamic responses in the cavity between the wall and the building insulation as influenced by weather conditions.These dynamic responses are manifested as a delay of both humidity and temperature changes in the cavity when compared with the changes in the ambient surrounding of the building. The process is then modeled through numerical methods and statistical analysis of the experimental data obtained using the new system of measurement. © 2015 Published by ITB Journal Publisher. Source

Antonyova A.,University of Presov | Antony P.,Apmikro | Soewito B.,Binus University
Journal of Physics: Conference Series

Present level and quality of the environment are directly dependent on our access to natural resources, as well as their sustainability. In particular production activities and phenomena associated with it have a direct impact on the future of our planet. Recycling process, which in large enterprises often becomes an important and integral part of the production program, is usually in small and medium-sized enterprises problematic. We can specify a few factors, which have direct impact on the development and successful application of the effective reverse logistics system. Find the ways to economically acceptable model of reverse logistics, focusing on converting waste materials for renewable energy, is the task in progress. Source

Antonyova A.,University of Presov | Antony P.,Apmikro
Advanced Science Letters

Fluidic proximity sensor is designed to measure or indicate the distance between the reference object or surface and outlet opening of the circular nozzle which is the working part of the sensor. Although in some cases sensors based on electronics make the similar effect they cannot be used in the surrounding of high temperature, some specific chemicals, mining in potentially explosive atmospheres, major pollution or some other phenomena detrimental to electronics. Therefore fluidic has its use mostly in these conditions. The article presents fluidic proximity sensor with its connection and controlling using electronics which can be placed in the distant safety area. Process and characteristics of the phenomenon are modeled by methods of statistical analysis. © 2014 American Scientific Publishers All rights reserved. Source

Antonyova A.,University of Presov | Antony P.,Apmikro | Korjenic A.,Vienna University of Technology
Energy and Buildings

Testing of the actual properties of insulation materials is usually connected with the actual situation when measurement realization requires suitable weather conditions, for instance the winter time. The previous research [6], in which measurements of polystyrene were conducted, was testing its thermal properties under actual conditions every 30 min, being directly dependent on the building environment where the insulation material was tested. Laboratory simulation of the actual application on the outside of the building to test the thermal properties of insulation materials can circumvent the dependency on the actual environmental conditions during the experiment. Here the actual thermal conductivity through the material of a specific thickness was tested using a new experimental measuring method. The method is based on generating an outside temperature of −18 °C using the Peltier module on one side of the block-shaped piece of insulation material. The methodology also enables testing of the internal thermal behavior of the material with the proper thickness as well as the shape of the material. The research results are especially useful when deciding on the effective thickness of the building's insulating material; using statistical methods. The analytical expression of the insulation properties inside the material would also serve for that purpose. © 2016 Elsevier B.V. Source

Antonyova A.,University of Presov | Antony P.,Apmikro
Advanced Science Letters

The experiments were influenced by the lack of a suitable measuring instrument with a sufficient stability, reliability, accuracy and repeatability. A new device with the desired properties, that is required for a specific purpose, enables an accurate measuring and also the position repeatability for setting the exact distance between the two technological rollers to spread water-borne adhesives. The measuring process is realized by the system to transfer the linear motion to rotary, followed by scanning and digitizing the signal. The very microprocessor is programmed to read the positional data from the sensor and calculate the required range of data and send them to D/A converter. The sensor is based on so-called Hall Effect and on the internal signal processing. The output of the converter is a required signal for the main control system of the machine for the production of the paperboard. Experimental laboratory measurements before the installing were made to verify the accuracy and linearity of the device by the least square method of the statistical analysis. The automatic industrial-position sensor proved its linearity and repeatable stability with the accurate position. © 2014 American Scientific Publishers All rights reserved. Source

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