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Tytuł:
WSN and RFID Integration to Support Intelligent Monitoring in Smart Buildings Using Hybrid Intelligent Decision Support Systems
Autorzy:
Alshahrany, F.
Abbod, M.
Moualek, I.
Powiązania:
https://bibliotekanauki.pl/articles/1401951.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Tp
Opis:
The real time monitoring of environment context aware activities is becoming a standard in the service delivery in a wide range of domains (child and elderly care and supervision, logistics, circulation, and other). The safety of people, goods and premises depends on the prompt reaction to potential hazards identified at an early stage to engage appropriate control actions. This requires capturing real time data to process locally at the device level or communicate to backend systems for real time decision making. This research examines the wireless sensor network and radio frequency identification technology integration in smart homes to support advanced safety systems deployed upstream to safety and emergency response. These systems are based on the use of hybrid intelligent decision support systems configured in a multi-distributed architecture enabled by the wireless communication of detection and tracking data to support intelligent real-time monitoring in smart buildings. This paper introduces first the concept of wireless sensor network and radio frequency identification technology integration showing the various options for the task distribution between radio frequency identification and hybrid intelligent decision support systems. This integration is then illustrated in a multi-distributed system architecture to identify motion and control access in a smart building using a room capacity model for occupancy and evacuation, access rights and a navigation map automatically generated by the system. The solution shown in the case study is based on a virtual layout of the smart building which is implemented using the capabilities of the building information model and hybrid intelligent decision support system.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-152-B-159
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study of evaluation of solar energy simulation and modeling systems
Autorzy:
Er, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1070387.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Tp
07.05.Bx
07.05.Kf
Opis:
In the solar energy application, there are several obstacles during the design of projects. The investors are still enforcing with deliberately carrying out the right and feasible project decision. In this point simulation techniques have been emerging their indispensable importance. Thereby the simulation can be used as an adaptive purpose not only during the design process of a plant but also for the existing plants efficacy while determining operational condition of solar system on a daily basis by probabilistic methods due to random characteristics of the meteorological data. This study mainly consists two parts. The first part of this study overarches the review of existing software tools and models which are reachable at the preparation time of this study. Then the reviewed software tools and models were classified briefly in the figures. The second part of the study outlines the developed new code in C# computer programming language for the solar calculations. The results which were obtained framed the developed code, were evaluated with the convenient existing software tools and models for assessment of their correlation and also the results were demonstrated with graphs for their utilization. Consequently the software systems were enlightened that are mostly used in scientific projects including solar software simulation packages and modeling background together with comparison of separate or combined PV software programs by their field of application which would bolster further research studies.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 72-77
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of First Order Focusing Properties of Ideal Hemispherical Deflector Analyzer Using Artificial Neural Network
Autorzy:
Isik, N.
Isik, A.
Sise, O.
Guvenc, U.
Powiązania:
https://bibliotekanauki.pl/articles/1030354.pdf
Data publikacji:
2017-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.79.Fm
07.05.Tp
Opis:
Electrostatic energy analyzers are irreplaceable instruments to analyze the electron beams energies. In this context, the knowledge of electron trajectories in electrostatic energy analyzers has major importance in collision physics as well as in different scientific instruments for surface science. In this study, electron trajectories for different energies in an ideal field 180° hemispherical deflector analyzer are investigated by artificial neural network prediction method. The SIMION 8.1 simulation program is used as a data source for training and testing of artificial neural network. Artificial neural network based prediction has been performed using Matlab R2012b program. Obtained performance results indicate that this approach provides new perspectives for the rapid solution to the problems in charged particle optics.
Źródło:
Acta Physica Polonica A; 2017, 131, 1; 10-12
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On a Combinatorial Aspect of Fashion
Autorzy:
Krawczyk, M.
Kułakowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1400175.pdf
Data publikacji:
2013-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
89.65.-s
07.05.Tp
Opis:
Simulations are performed according to the Axelrod model of culture dissemination, with modified mechanism of repulsion. Previously, repulsion was considered by Radillo-Diaz et al. as dependent on a predefined threshold. Here the probabilities of attraction and repulsion are calculated from the number of cells in the same states. We also investigate the influence of some homogeneity, introduced to the initial state. As the result of the probabilistic definition of repulsion, the ordered state vanishes. A small cluster of a few percent of population is retained only if in the initial state a set of agents is prepared in the same state. We conclude that the modelled imitation is successful only with respect to agents, and not only their features.
Źródło:
Acta Physica Polonica A; 2013, 123, 3; 560-563
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Use of 3D Modeling in the Diagnosis of Power Capacitors with Acoustic Emission Method
Autorzy:
Boczar, T.
Błachowicz, A.
Borucki, S.
Zmarzły, D.
Powiązania:
https://bibliotekanauki.pl/articles/1417933.pdf
Data publikacji:
2012-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.40.Le
07.05.Tp
Opis:
The article presents the issue modelling the partial discharge phenomenon in engineering and scientific environments using hardware-based computer cluster. The authors present the results of research work on the phenomenon of acoustic emission from partial discharge occurring in power capacitors for power factor correction. The work includes the issues presentation and explanation of solutions enabling to create 3D spatial model of power capacitor. The authors proposed a simplified model of an acoustic test object aimed at improving the process of calculating the results.
Źródło:
Acta Physica Polonica A; 2012, 122, 5; 796-799
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Optimization Study of a Hydraulic Gear Pump Cover with Finite Element Method
Autorzy:
Ozsoy, M.
Kurnaz, C.
Powiązania:
https://bibliotekanauki.pl/articles/1031134.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.53.Tf
07.05.Tp
Opis:
In this study, an optimization analysis of the hydraulic gear pump cover with design of experiments and response surface method has been conducted. The sample of the solid cover of a hydraulic pump has been parametrically modelled. Structural strength analysis of the modelled hydraulic pump cover has been realized using finite element method. To prevent the concentration of stress on the hydraulic pump cover and to keep the stress values on the safe side, design inputs were not exceeded. According to the analysis results of this optimization study; the wall thickness of the hydraulic pump cover has been reduced. Finally, experimental tests were performed on hydraulic pump test setup, for verification of the simulation results.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 944-948
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance analysis of CoS of bridged WorldFIP and ATM networks for real time communication
Autorzy:
Aydogan, T.
Ozcelik, I.
Erturk, I.
Ekiz, H.
Powiązania:
https://bibliotekanauki.pl/articles/1070442.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
01.20.+X
07.05.TP
Opis:
The implementation of the remote control, monitoring and maintenance of industrial automation systems based on real-time criteria is becoming more difficult as the distance increases. ATM is an important transport, switching, network management and backbone technology that offers different solutions to real-time communication with different classes of service. In this study, the effects on real-time communication of AAL 3/4 and AAL 5 classes of service of ATM were researched on a model in which the communication between WorldFIP industrial network nodes and ATM network nodes was provided over a bridge. First, a communication system consisting of a WorldFIP network, ATM network and bridge were modeled on a simulation tool and implemented. Afterwards, the system performance was analyzed under different loads within the classes of service AAL 3/4 and AAL 5. The analysis results have indicated that compared to AAL 5, AAL 3/4 better satisfies the real-time communication criteria. This result has shown that in both real-time access to a remote industrial automation systems and communication among remote industrial automation systems, ATM is preferable as a backbone and AAL 3/4 as the class of service.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 412-416
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of Thermal Processing at the Formation of Shallow Doped IC Active Regions
Autorzy:
Komarov, A.
Velichko, O.
Zayats, G.
Komarov, F.
Miskiewicz, S.
Mironov, A.
Makarevich, Yu.
Powiązania:
https://bibliotekanauki.pl/articles/1400426.pdf
Data publikacji:
2013-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
66.30.J-
07.05.Tp
07.05.Bx
Opis:
Physical and mathematical models as well as numerical algorithms for simulation of advanced technological processes, such as thermal annealing after low-energy ion implantation used during the VLSI fabrication are presented. In this paper we propose a model that treats the migration of the impurity atoms at the thermal annealing. We take into account process nonlinearity and influence of non-uniform defects distribution as well as electric field and elastic stress on the migration of atoms. The redistribution of point defects as well as the diffusion of nonequilibrium impurity interstitials in silicon are described by time-dependent quasi-linear parabolic equations. The results of numerical calculations are presented as well.
Źródło:
Acta Physica Polonica A; 2013, 123, 5; 804-808
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of a Laboratory Unit Air-Conditioning System with Matlab/Simulink Software
Autorzy:
Koçyiğit, N.
Şahin, M.
Powiązania:
https://bibliotekanauki.pl/articles/1031881.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Tp
07.20.-n
07.20.Mc
Opis:
In this study, design of an electronic air-conditioning system was carried out using Matlab/Simulink software. The air-conditioning system was designed as a laboratory experimental setup. The aim of this study was to revise and to reuse an outdated air-conditioning laboratory unit, by using improved methods. General equations were defined separately for each part and cell of this air conditioning system. Using these equations Matlab/Simulink models for every component were created. The Matlab/Simulink models were combined and verified with theoretical results. The simulation results show that theoretical results are compatible with the simulation results. These results were tested for input and output air enthalpy values and for humidity values. In addition, air mass flow rates for the number of different fan speeds were compared. The coherent simulation results showed that the general model of the air conditioning system, designed in Matlab/Simulink, behaves correctly. This model will be used in the future studies for comparison of real system results with simulation results.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 839-842
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Settling Time Testing of Fast DACs
Autorzy:
Kvedaras, R.
Kvedaras, V.
Ustinavicius, T.
Powiązania:
https://bibliotekanauki.pl/articles/1505231.pdf
Data publikacji:
2011-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Dz
07.05.Hd
07.05.Kf
07.05.Tp
Opis:
New specialized sampling converter for signal timescale transformation and algorithm of digital signal processing for automated measurement of settling times of fast digital-to-analogue converters is represented. The new sampling device with numerically controlled oscillators allows us realization of different types of the timescale transformation. Usage of ΣΔ analogue-to-digital converter and first-in first-out memory allows us significant simplification of the device. The equations of timescale transformation ratio and sampling step are presented. A method using a brick-wall comb filter in frequency domain to filter measurement signal has been developed. It is shown that such filtering allows us significant reduction of noise of measurement signal. A new method and algorithm using a brick-wall comb filter and averaging of filtered signal has been developed. Results of the research of developed digital signal processing algorithm are submitted.
Źródło:
Acta Physica Polonica A; 2011, 119, 4; 521-527
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Radial Dependence of the Localized Magnetic Field using Artificial Neural Networks
Autorzy:
Isık, A.
Isık, N.
Powiązania:
https://bibliotekanauki.pl/articles/1030376.pdf
Data publikacji:
2017-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.79.Fm
07.05.Tp
07.77.-n
Opis:
The measurements of the angular distributions of charged particles have a long history in atomic and molecular collision studies. To detect all electrons originating from collision has great importance in experimental studies. Due to the physical constraints of the experimental instruments, electrons in definite angles can be detected. Magnetic angle changer is designed to steer electrons scattered at undetectable angles. The magnetic angle changer is a source of the localized magnetic field. A well-controlled magnetic field in the interaction region changes the angles of the electron trajectories. In this study, artificial neural networks have been performed to obtain variation of the magnetic field strength as a function of radial distance calculated from boundary element method. A stringent quality filter is used for data to produce more robust artificial neural network based prediction. The results indicate that the well-trained artificial neural networks can predict the effect on the radial dependence of the localized magnetic field with tremendous precision. It is believed that this study will introduce a new insight into collision studies.
Źródło:
Acta Physica Polonica A; 2017, 131, 1; 32-33
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ionisation Efficiency in Conical Hot Cavities
Autorzy:
Turek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1033720.pdf
Data publikacji:
2017-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.77.Ka
07.05.Tp
34.35.+a
Opis:
Surface ionisation in a new type of hot cavity characterised by the shape of a truncated cone is considered in the paper. Influence of the hot cavity shape and its temperature on the ionisation efficiency of stable and long-lived nuclides is under investigation and the supremacy of elongated conical cavities is proven. The role of the extraction opening size is studied and its optimal diameter ( ≈ 1 mm) is found for the considered cavity shapes. It is shown that the extraction voltages of 1-2 kV are large enough to obtain high efficiencies and saturation of the current-voltage curves is observed above these values. Changes of ionisation effciency with the ioniser temperature are investigated - increase of ion yield with T is observed. It was proven that cold spots inside the ioniser cavity (near the extraction opening - in the considered case) can degrade ion source performance by several tens percent.
Źródło:
Acta Physica Polonica A; 2017, 132, 2; 259-263
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of Ionization in a Spherical Surface Ionizer
Autorzy:
Turek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1504138.pdf
Data publikacji:
2011-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.77.Ka
07.05.Tp
34.35.+a
Opis:
A Monte Carlo method-based model of a hot cavity surface ion source with a spherically shaped ionizer is presented. A numerical code enables studies of ion source efficiency as a function of an extraction voltage, geometry of the ionizer and its temperature, the size of extraction aperture and many other factors. The calculation results for a variety of mentioned parameters are presented. A novel configuration of surface ion source is proposed and discussed - the efficiency of the source with an almost spherically shaped ionizer could be much higher than that of currently used constructions of ion sources.
Źródło:
Acta Physica Polonica A; 2011, 120, 1; 188-191
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Magnet Magnetization Vector Orientation in Halbach Arrays on the Effectiveness of Separation
Autorzy:
Repková, J.
Mahuliaková, M.
Ciprian, D.
Lesňák, M.
Luňáček, J.
Powiązania:
https://bibliotekanauki.pl/articles/1367510.pdf
Data publikacji:
2014-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Tp
07.55.Db
75.50.Ww
Opis:
Magnetic separation is one of the methods that are used to separate magnetic and non-magnetic components from an input mixture. Its effectiveness strongly depends on the strength and distribution of magnetic field in the separator. It is economical to use Halbach permanent magnet arrays to create a suitable magnetic field, since they do not change their properties during separation and do not need electrical energy. During real magnetization process, however, there can be a problem with correct orientation of their magnetization vector. The work based on 2D computer models shows the influence of different orientations of magnetization vectors of individual elements of Halbach arrays on the size and distribution of the magnetic field in the considered separator space. Several model systems that contained four to six typical AlNiCo, SmCo and NdFeB cube shaped magnets with the dimensions 50×50×50 $mm^3$ were used for the analysis.
Źródło:
Acta Physica Polonica A; 2014, 126, 1; 158-159
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Electron Impact on Ionization of Short-Lived Isotopes in a Hot Cavity
Autorzy:
Turek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1199206.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.77.Ka
07.05.Tp
34.35.+a
Opis:
A Monte Carlo method based numerical model of hot cavity surface ion source that takes into account radioactive decay and the delay due to the sticking of particles to ionizer surface is considered. The influence of electron impact ionization by thermionic electrons accelerated by the extraction field is investigated. It is shown that the contribution from that process rises with decreasing half-life period and cannot be neglected, especially for substances of small surface ionization coefficient. The changes of relative yields from electron impact and surface processes with the length of the average sticking time are also studied.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1384-1387
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł

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