Autor: Szewczyk, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Management of solar energy
Gospodarowanie energią słoneczną
Autorzy:: Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/100366.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:: solar energy
solar radiation
GIS
spatial planning
investment planning
Renewable Energy Resources Act
renewable energy resources
energia słoneczna
promieniowanie słoneczne
planowanie przestrzenne
planowanie inwestycji
ustawa o odnawialnych źródłach energii
OZE
Opis:: The article addresses issues related to planning investments based on renewable energy resource, as exemplified by solar energy. In the first part mean annual amounts of total solar irradiance in Poland are presented and legal conditions for development of this kind of technology with reference to the European Union regulations and to the Renewable Energy Resources Act of 20 February 2015. In the next part of the paper a distribution model of direct solar irradiance for the town and community (gmina) of Jordanów has been constructed. Mountainous character of this area, located in the south part of the Małopolskie voivodeship, means there are very good as well as very bad conditions of insolation. The results obtained by using the model were assigned to building plots and plots intended for development and than they were analysed with the aim of choosing optimal areas for green investments based on solar energy.
W artykule poruszono problematykę związaną z planowaniem inwestycji opartych na odnawialnych źródłach energii na przykładzie energii słonecznej. W pierwszej części przedstawiono średnie roczne sumy całkowitego promieniowania słonecznego w Polsce oraz zaprezentowano prawne uwarunkowania rozwoju tego typu technologii w odniesieniu do przepisów Unii Europejskiej i ustawy o odnawialnych źródłach energii z dnia 20 lutego 2015 roku. W kolejnej części wykonano model rozkładu bezpośredniego promieniowania słonecznego dla miasta i gminy Jordanów. Górzysty charakter tego obszaru, który jest położony w południowej części województwa małopolskiego sprawia, że występują tam obszary o bardzo dobrych, jak również bardzo złych warunkach ekspozycji słonecznej. Wyniki uzyskane z modelu przypisano działkom budowlanym oraz działkom przeznaczonym pod zabudowę, a następnie przeanalizowano pod kątem doboru optymalnych obszarów pod inwestycje proekologiczne oparte na energii słonecznej.
Źródło:: Geomatics, Landmanagement and Landscape; 2016, 1; 95-103
2300-1496
Pojawia się w:: Geomatics, Landmanagement and Landscape
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The method of moments in Jiles–Atherton model based magnetostatic modelling of thin layers
Autorzy:: Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/140580.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Jiles–Atherton model
magnetostatic
thin layers
method of moments
Opis:: The method of moments enables effective magnetostatic modelling of thin layers, where thickness of the layer should be considered. This paper presents the non-linear extension for this method of modelling. An initial magnetization curve, necessary for modelling, was reconstructed from saturation hysteresis loops on the basis of the Jiles–Atherton model. Finally, the set of non-linear equations was stated, and an example of solution for a square-shaped magnetic thin layer is presented.
Źródło:: Archives of Electrical Engineering; 2018, 67, 1; 27-35
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Generalization of Magnetostatic Method of Moments for Thin Layers with Regular Rectangular Grids
Autorzy:: Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/1032670.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.Ak
75.50.Kj
Opis:: Possibilities of the modeling of the flux density distribution in thin films are significantly limited using the finite elements method due to the fast increase of the number of tetrahedral elementary cells with reduction of the thickness. For this reason, method of the moments is very important alternative for finite elements method in the case of thin layers, where layer's thickness should be considered. Method of the moments overcomes this barrier, due to the possibility of operation on uniform grids with limited number of cells. Moreover, in opposite to the finite elements method, the method of the moments requires solving of the well defined linear equations, instead of the set of ill-posed differential equations. Paper presents the generalization of the method of the moments for thin layers with given thickness. Layers are defined as the 2D rectangular grids. Within the generalization, four key equations describing the influence of rectangular cell's border on the magnetization of cells are stated. On the base of these dependences, the set of 2NM linear equations was determined, where N and M are the numbers of rectangular cells in the rows and columns of regular grid. Finally, the set of linear equations is solved and magnetic flux density distribution in the thin layer is calculated.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 845-847
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Technical B-H Saturation Magnetization Curve Models for SPICE, FEM and MoM Simulations
Autorzy:: Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/384253.pdf
Data publikacji:: 2016
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: saturation
magnetization curve
perpendicular anisotropy
Mn-Zn ferrite
Finemet
Opis:: Recent development of SPICE, FEM and MoM software often requires the fast and reliable description of BH saturation magnetization curve. In spite of the fact that physical models of BH saturation curve are very sophisticated, for technical purposes, such curve may be modelled by simplified equations. Paper presents the quantitative assessment of the quality of four technical models of BH saturation magnetization curve performed for four modern magnetic materials: constructional corrosion resistant steel, Mn-Zn ferrite, amorphous alloy with perpendicular anisotropy as well as Finemet-type nanocrystalline magnetic material. Presented results confirm reliability of the model as well as indicate that high-speed calculation may be done using arctangent function.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2016, 10, 2; 3-7
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Modelling of the Magnetic Characteristics of Isotropic and Anisotropic Materials for Sensor Applications
Autorzy:: Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/1813527.pdf
Data publikacji:: 2008-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.60.Ej
75.50.Gg
75.50.Kj
Opis:: The following paper presents the results of modelling of the magnetic characteristics of isotropic (Ni-Zn ferrite) and anisotropic material ($Fe_{40}Ni_{38}Mo_4B_{18}$ amorphous alloy in as quenched state), both useful for sensor applications. For the modelling an extended Jiles-Atherton model was used. Extension of the model connects model's parameter k, describing average energy required to break pinning site, with magnetic state of the material. Such extension of the model is reasonable from the physical point of view. Good agreement between experimental data and modelling confirms that the extended Jiles-Atherton model creates the possibility of modelling of magnetic characteristics of both isotropic and anisotropic magnetic cores.
Źródło:: Acta Physica Polonica A; 2008, 113, 1; 67-70
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Stress-Induced Anisotropy and Stress Dependence of Saturation Magnetostriction in the Jiles-Atherton-Sablik Model of the Magnetoelastic Villari Effect
Autorzy:: Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/355063.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: magnetic hysteresis model
soft ferrite
magnetoelastic anisotropy
Opis:: The paper presents the results of the magnetoelastic Villari effect modelling in high-permeability Mn_0.51Zn_0.44Fe_2.05O₄ ferrite. Modelling was performed on the basis of measurements of magnetoelastic characteristics of frame-shaped samples. For the modelling, the corrected Jiles-Atherton-Sablik model was used. On the base of modelling results, the stress dependence of parameter k and stress-induced anisotropy were estimated. As a result the changes of saturation magnetostriction of Mn_0.51Zn_0.44Fe_2.05O₄ ferrite subjected to stresses were calculated. Such changes were previously observed experimentally. However, the phenomenon of stress-induced sign change of saturation magnetostriction was never previously explained quantitatively.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 2A; 607-612
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Capacitive human presence sensor for safety applications
Autorzy:: Frydrych, A.
Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/384375.pdf
Data publikacji:: 2010
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: capacitive sensors
people safety
underground transportation network
Opis:: Paper presents a novel idea of capacitive sensor for human presence detection. Due to the use of resonant circuit significant increase of sensor's sensitivity was achieved. In the case of human hand, value of output signal changes up to 421per cent. Moreover, sensor creates possibility of determination of the material of the detected object. As a result developed sensor can be applied for human presence detection sensors utilized in safety systems, which are especially suitable for underground transportation network.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2010, 4, 3; 45-49
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Intelligent utilization of waste of electrical and electronic equipment (WEEE) with robotized tool
Autorzy:: Szałatkiewicz, J.
Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/384565.pdf
Data publikacji:: 2012
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: WEEE
robotic
dismantling
disassembly
waste
recycling
recovery of resources
HDD
Opis:: The article examines the solution of intelligent robotic utilization of electrical waste and electronic equipment (WEEE), as means of materials recovery. The paper provides criteria for selection, identification and waste analysis, enabling application of robotic dismantling solutions. Based on proposed criteria, the waste of computer hard disk drives (HDD) was identified, analyzed, and their characteristics described. Furthermore applying described approach to robotized dismantling, the complete process of waste HDD processing, covering all the procedural steps was presented for the selected disk. Described intelligent utilization process can be performed with use of 2 robots equipped with, 2 tools and one conveyor handle. Authors also briefly presents issues related to proposed process approached during HDD waste disassembly studies. In addition, paper presents the quantities of materials to be recovered from the HDD waste.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2012, 6, 4; 45-49
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Optimisation of Frame-Shaped Fluxgate Sensor Core made of Amorphous Alloy Using Generalized Magnetostatic Method of Moments
Autorzy:: Szewczyk, R.
Frydrych, P.
Powiązania:: https://bibliotekanauki.pl/articles/1032692.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 85.75.Ss
75.50.Kj
Opis:: Fluxgate magnetic field sensors are commonly used in the industry, navigation as well as in non-destructive testing. Moreover, recent development of such sensors is focused on effective application of thin layer magnetic cores, such as made of amorphous alloys. However, effective development of fluxgate sensors require method of modeling its core taking into account demagnetization. The paper presents the results of optimization of the shape of thin-layer core for fluxgate sensor. Due to the fact that possibility of application of finite elements method is limited in the case of thin layer, the method of moments was used. Considering the geometry of the core as well as magnetizing and sensing winding, the optimal proportion of the length/thickness parameter was determined from the point of view of sensor sensitivity. It was proven that value of this optimal proportion is strongly dependent of thickness of the core.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 660-662
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: High Resolution Eddy Current Tomography System for Nondestructive Testing
Autorzy:: Salach, J.
Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/1202343.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.70.Ex
81.70.Tx
Opis:: Idea of the high-resolution eddy current tomography is presented. Proposed system gives possibility of testing cylinder-shaped elements made of both magnetic and non-magnetic materials. To validate the concept, the tomographic measurements are carried out on set of steel cylinders with non-magnetic copper inclusion. Measurements were done during both linear and rotational movement of the element. Achieved results indicate the high sensitivity of system, which creates possibility of its application for non-destructive testing of the elements made of ferromagnetic and non-magnetic materials.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 402-403
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Foresight priorytetowych, innowacyjnych technologii na rzecz automatyki, robotyki i techniki pomiarowej - wyniki projektu oraz rekomendacje
Foresight of priority, innovative technologies in favor of automation, robotics and the techniques of measurement - projects results and recommendations
Autorzy:: Piwiński, J.
Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/276878.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: automatyka
robotyka
technika pomiarowa
technologie innowacyjne
automation
robotics
measurement technique
innovative technologies
Opis:: Celem projektu "Foresight priorytetowych, innowacyjnych technologii na rzecz automatyki, robotyki i techniki pomiarowej" było wskazanie priorytetowych, innowacyjnych technologii, scenariuszy rozwoju tych technologii oraz kierunków badań o znaczeniu strategicznym, których rozwój w następnych 20 latach będzie miał kluczowe znaczenie w zakresie automatyki, robotyki i techniki pomiarowej w Polsce. Realizacja projektu była ukierunkowana przede wszystkim na potrzeby krajowych przedsiębiorstw oraz sfery badawczo-rozwojowej. W referacie przedstawiono główne założenia i wyniki projektu oraz unikatową metodykę realizacji projektów typu foresight opracowaną w Przemysłowym Instytucie Automatyki i Pomiarów.
The purpose of project 'Foresight of priority, innovative technologies in favor of automation, robotics and the techniques of measurement' was indication innovative technologies, ways of its development and directions of strategic research, the development (progress, evolution) of which will have a key meaning in next 20 years in a range of automation, robotics techniques of measurement in Poland. Realization of the project was mainly directed on the requirements of domestic enterprises and research and development area. Paper presents main ideas and results of the project as well as unique foresight methodology developed in Industrial Research Institute for Automation and Measurements.
Źródło:: Pomiary Automatyka Robotyka; 2011, 15, 2; 219-227
1427-9126
Pojawia się w:: Pomiary Automatyka Robotyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Study on the Rayleigh Hysteresis Model and its Applicability in Modeling Magnetic Hysteresis Phenomenon in Ferromagnetic Materials
Autorzy:: Kachniarz, M.
Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/1030243.pdf
Data publikacji:: 2017-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.30.-m
75.60.-d
75.50.Gg
75.50.Cc
75.60.Ej
07.05.Tp
Opis:: The following paper presents the basis of a Rayleigh magnetic hysteresis model and the examples of its application for modeling the magnetic characteristics of ferromagnetic materials: ferrites and steels. The presented model allows one to simulate the shape of a magnetic hysteresis loop of the material for the given value of the magnetizing field in the so-called Rayleigh region, as well as to calculate basic magnetic parameters of the material like coercive field, magnetic remanence, and power loss. Four different ferromagnetic materials (two ferrites and two alloy steels) were chosen for the investigation. Each material was investigated within the range of low magnetizing fields, corresponding to the Rayleigh region. On the basis of obtained results, modeling of magnetic characteristics of the investigated materials was performed. Moreover, the range of magnetizing field where the Rayleigh model can be applied for these materials was investigated based on correlation coefficient between experimental results and modeling.
Źródło:: Acta Physica Polonica A; 2017, 131, 5; 1244-1249
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Open Source Implementation of Different Variants of Jiles-Atherton Model of Magnetic Hysteresis Loops
Autorzy:: Szewczyk, R.
Cheng, P.
Powiązania:: https://bibliotekanauki.pl/articles/1030747.pdf
Data publikacji:: 2018-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Bb
75.50.Gg
75.60.Ej
Opis:: Jiles-Atherton model is one of the most advanced and most popular models of magnetic hysteresis loop. However, this model is considering different physical phenomena and computational issues. As a result, cross-validation of the results of modelling performed by different authors became difficult. For this reason, the open-source MATLAB/OCTAVE based implementation of Jiles-Atherton model was developed. Proposed implementation covers isotropic model of magnetic hysteresis loops as well as uniaxial and grain oriented electrical steel anisotropy. Moreover, the corrections proposed by Venkataraman together with different approaches to derivative of the anhysteretic magnetization are considered. Developed library is freely available together with the examples of magnetic hysteresis loops. As a result, it can be the base for further development of Jiles-Atherton model for better understanding of magnetization process as well as modelling the inductive components.
Źródło:: Acta Physica Polonica A; 2018, 133, 3; 654-656
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Magnetovision Scanning System for Detection of Dangerous Objects
Autorzy:: Nowicki, M.
Szewczyk, R.
Powiązania:: https://bibliotekanauki.pl/articles/1202312.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.70.-q
85.75.Ss
Opis:: This paper presents an application of magnetovision based measurements to develop a method for passive detection of dangerous ferromagnetic objects. Scanning system was designed and built to study the magnetic field vector distributions. The measurements of the Earth's field disturbances caused by ferromagnetic objects were carried out. The ability for passive detection of selected dangerous objects was demonstrated. Further data processing allowed for determining the (x,y) coordinates of the object relative to the plane of measurement, and even the possibility of calculating the distance from the object. The results obtained indicate that it is possible to detect and determine the location of dangerous ferromagnetic objects. This opens the new way to use magnetovision in public security systems, in particular for the detection of dangerous objects by police and sapper robots.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 382-383
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Extension of the Jiles-Atherton Model for Modelling the Frequency Dependence of Magnetic Characteristics of Amorphous Alloy Cores for Inductive Components of Electronic Devices
Autorzy:: Szewczyk, R.
Frydrych, P.
Powiązania:: https://bibliotekanauki.pl/articles/1507194.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Kj
75.60.Ej
75.78.-n
Opis:: The paper presents the results of modelling the influence of magnetizing field frequency on the magnetic characteristics of $Fe_{40}Ni_{38}Mo_4B_{18}$ amorphous alloy in as-quenched state. An extension for the Jiles-Atherton model was applied and changes of the parameter k during the magnetization process were considered. On the base of the experiment, the parameters of the Jiles-Atherton model were calculated for experimental hysteresis loop. Evolutionary strategies, together with the gradient optimisation method, were used. Moreover, the changes of parameters c and a as the function of frequency of magnetizing field were also taken into consideration. Finally, the high conformity between the experimental and modelling results was achieved. This high conformity indicates that the results both create new possibilities in modelling of properties of inductive components based on the amorphous alloys, as well as extend the possibility of quantitative description of magnetization process.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 782-784
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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