Apmikro

Prešov, Slovakia
Prešov, Slovakia

Time filter

Source Type

Antonyova A.,University of Prešov | Antony P.,APmikro | Korjenic A.,Vienna University of Technology
Energy and Buildings | Year: 2016

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.


Antonyova A.,University of Prešov | Antony P.,Apmikro | Joelianto E.,Bandung Institute of Technology
Proceedings of 2014 2nd International Conference on Technology, Informatics, Management, Engineering and Environment, TIME-E 2014 | Year: 2015

Recycling the waste water became necessity especially when it is contaminated with some oily components. The paper deals with the method for purification the waste water that is contaminated in production during the painting the paper boxes with the dispersion colorants. Flotation was chosen as a suitable method for the waste water recycling because the whole process shows satisfactory both the water treatment, 98% purity of the final water product, and financial cost. During the process of flotation air bubbles are created. Air bubbles rise to the surface of the water. Molecules of air are associated with molecules of impurities and thus they form foam which is subsequently skimmed from the surface of the water. Electrolytic way of the bubbles formation can prevent clogging of the holes for the air that is blown through the tube. The clogging could be caused with the agglomeration of the individual oily components of the colorants. The whole process was analyzed, experimentally tested and modeled from the view point of informatics using also the flow chart for optimization before the final implementation. © 2014 IEEE.


Antonyova A.,University of Prešov | Antony P.,Apmikro | Soewito B.,Binus University
Journal of Physics: Conference Series | Year: 2015

Specific water contamination requires the recycling process prior to its discharge into the public sewerage network. Electro-flotation technology was used for cleaning of waste water contaminated with the disperse colorants. Dispersion colorants were used to decorate the boxes, made of corrugated board, in the company for the production of packaging. The objective of this paper is to present a method of optimization to determine the length of the time interval for electro-flotation process. Interval should be set so as to achieve the degree of cleaning the water that is the maximum possible in the process of electro-flotation. The measurement of the light passing through the measuring the translucent tube determines the actual degree of the water purity. The measurement is carried out by means of a photodiode in different wavelengths. The measured values in the measuring tube are compared with the nominal value, which corresponds to pure distilled water. Optimization the time interval to clean the water using electro-flotation was determined for yellow color. The optimum interval for the water contaminated with the yellow color was set to 1800s. © Published under licence by IOP Publishing Ltd.


Antonyova A.,University of Prešov | Antony P.,APmikro | Soewito B.,Binus University
Journal of Physics: Conference Series | Year: 2016

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.


Antonyova A.,University of Prešov | Antony P.,APmikro
Polish Journal of Environmental Studies | Year: 2015

Nowadays recycling wastewater is a task in progress. New ways of contamination have appeared together with the technology development. Our article deals with the case of wastewater contaminated with dispersed colorants that are used during the decoration of paper boxes for packaging various products. The wastewater treatment is based on the electro-flotation process. The system is fully automatic, with a possibility to set the time interval for the length of electro-flotation in the tank. The set of experimental laboratory work with equipment development is aimed at optimizing the time interval to manage the proper conditions according to the color used for decoration. LEDs are used to monitor the process. The results are analyzed using statistical methods. The optimum time interval of electro-flotation in a tank for the blue color was set at 25 min. © 2015, HARD Publishing Company. All rights reserved.


Antonyova A.,University of Prešov | Antony P.,APmikro
Jurnal Teknologi | Year: 2016

Prior to the process, when the shredded waste paper in factory is pressed into pellets, as a part of the chain in the context of the reverse logistics, the pieces of paper pass through the chamber. As paper pieces flow through the chamber with the pressing apparatus, the overfilling can cost the damage and stop the process. The sensor can detect overfilling in the pressing apparatus giving timely signal to the service staff. The designed sensor is constructed as a vibration rod that is based on the measuring and evaluating the resonance frequency using the sensor circuit board (PCB) with microprocessor. Evaluation of the vibrations, as an expression of the sensor vibrating rod, is realized through ASSEMBLER. The crystal frequency is 24 MHz, while the rod frequency is 55.5Hz. The damped vibrations of the sensor were modeled. The amplitudes were expressed using the least squares method for the curve fitting. The differential equation was used to determine the damping ratio of the system. © 2016, Penerbit UTM Press. All rights reserved.


Antonyova A.,University of Prešov | Antony P.,Apmikro
Advanced Science Letters | Year: 2014

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.


Antonyova A.,University of Prešov | Antony P.,Apmikro
Advanced Science Letters | Year: 2014

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.


Antonyova A.,University of Prešov | Antony P.,APmikro
Proceedings - 2015 10th International Conference on P2P, Parallel, Grid, Cloud and Internet Computing, 3PGCIC 2015 | Year: 2015

Managing the manufacturing process remotely through an Internet connection allows, inter alia, to avoid, for example, many negative phenomena affecting the environment, which become sometimes necessary in the ambient surrounding of the production facility. In a company, where decoration the boxes leads to a massive water pollution with the disperse colorants, there was installed the waste water purifier to recycle sewage water using the technology of electro-flotation. Originally the control system enables to control devices only using the infrared remote controller. But due to the noisy operations during the box production, the waste water purifier was placed closer to the waste channels of sewers, farther away from the office for the sewage control center of the company and also there has been implemented TCP/IP control system using an Internet connection. This enables remote monitoring and displaying the current status directly on the monitor screen. If necessary, thus it is possible to implement the remote service access also to the main operating functions of the device. © 2015 IEEE.


Antonyova A.,University of Prešov | Antony P.,Apmikro
Journal of Physics: Conference Series | Year: 2013

The main inspiration for article was the problem of high investment into installation of the building insulation. The question of its effectiveness and reliability also after the period of 10 or 15 years was the topic of the international research project carried out at the University of Prešov in Prešov and Vienna University of Technology entitled «Detection and Management of Risk Processes in Building Insulation» and numbered SRDA SK-AT-0008-10. To detect especially the moisture problem as risk process in the space between the wall and insulation led to construction new measuring equipment to test the moisture and temperature without the insulation destruction and this way to describe real situation in old buildings too. The further investigation allowed us to analyse the range of data in the amount of 1680 measurements and express conductive heat transfer using the methods of statistical analysis. Modelling comprises relationships of the environment properties inside the building, in the space between the wall and insulation and in ambient surrounding of the building. Radial distribution function also characterizes the connection of the temperature differences. © IOP Publishing Ltd 2013.

Loading Apmikro collaborators
Loading Apmikro collaborators