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Wyszukujesz frazę "Z-source" wg kryterium: Temat


Tytuł:
Modeling and simulation of novel stepped DC coupled quasi Z-Multilevel Inverter for single phase systems
Autorzy:
Meenakshi, T.
Suthanthira Vanitha, N.
Powiązania:
https://bibliotekanauki.pl/articles/140968.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multilevel inverter
shoot through
quasi Z-Source
modulation index
Opis:
This paper presents the modeling and simulation of a novel topology of quasi Z-Multilevel Inverter with stepped DC input. The proposed inverter incorporates a simple switching technique with reduced component count and is aimed at producing boosted multilevel output AC voltage. The inverter consists of two stages and the buck /boost operation is obtained by varying the shoot through period of the pulses obtained by maximum constant boost control with third harmonic injection. With all the advantages of the quasi Z-network, the proposed inverter eliminates the fly back diodes and capacitors present in a conventional Z-Multilevel Inverter. Further the stress on the devices is less which leads to reduction in component value and hence the cost. The novel stepped DC coupled Single Phase quasi Z-Multilevel Inverter is modeled and simulated in the MATLAB – SIMULINK environment and its performance is analyzed for varying input and switching conditions. The voltage and current waveforms across each stage of the inverter is analyzed and the results are presented for different levels of input.
Źródło:
Archives of Electrical Engineering; 2016, 65, 3; 437-448
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Generalized state space model and small signal stability analysis of Z-source converter
Autorzy:
Kouhanjani, Masoud Jokar
Soltani, Sina
Mardaneh, Mohammad
Powiązania:
https://bibliotekanauki.pl/articles/2202552.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
small signal stability
state space model
Z-source converter
Opis:
This paper proposes two nonlinear exact and simple state space models of a Zsource converter (ZSC) connected to an ac grid. A generic model of a ZSC accompanied with proper controllers are proposed and a dynamic model of the whole system is derived; as a result, based on a simple one, an equivalent block diagram of the current-controlled ZSC system is proposed. The ac small signal stability method is applied and the impact of controller parameters on network’s stability is discussed. Besides, overall system dynamic performance has been assessed in the event of perturbations. Time-domain simulations have been implemented in PSCAD/EMTDC to validate the accuracy of the models and effectiveness of the proposed controllers. The results of the exact model are compared with the response of the equations which are applied in MATLAB.
Źródło:
Archives of Electrical Engineering; 2023, 72, 1; 173--188
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new circuit topology using Z-source resonant inverter for high power contactless power transfer applications
Autorzy:
Ghosh, P. C.
Sadhu, P. K.
Ghosh, A.
Pal, N.
Powiązania:
https://bibliotekanauki.pl/articles/141006.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
contactless power transfer
mutual inductance
magnetic coupling coefficient
Z-source
resonant inverter
Opis:
In this study, a new circuit topology using a Z-source resonant inverter (ZSRI) for high power applications in large-air-gap contactless power transfer (CPT) systems, has been investigated. The main shortcoming of a large-air-gap CPT system is the poor power transfer efficiency due to low magnetic coupling. In order to minimize this shortcoming and to improve the overall performance of the system by boosting the power transfer capability, in this paper a CPT system with the newly developed circuit topology using high frequency Z-source resonant inverter has been proposed. Using the newly developed circuit topology for the CPT system, it has been observed that the overall performance of the system has been improved to a reasonable level with a purely sinusoidal resonant current flowing through the primary side. Therefore, no harmonics will be injected into the source. The proposed CPT system with an air gap of 16 cm and a misalignment of 3 cm has been simulated using the Maxwell finite element tool and Simplorer circuit simulation software for an output power of 2 kW.
Źródło:
Archives of Electrical Engineering; 2017, 66, 4; 843-854
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model predictive direct power control of energy storage quasi-Z-source grid-connected inverter
Autorzy:
Tang, Min'an
Yang, Shangmei
Zhang, Kaiyue
Wang, Qianqian
Liu, Chenggang
Dong, Xuewang
Powiązania:
https://bibliotekanauki.pl/articles/2042769.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quasi Z-Source
inverter
energy storage
power control
model predictive
space vector
Opis:
In order to overcome the shortcoming of large switching losses caused by variable switching frequency appears in the conventional finite control set model predictive control (FCS-MPC) algorithm, a model predictive direct power control (MP-DPC) for an energy storage quasi-Z-source inverter (ES-qZSI) is proposed. Firstly, the power prediction model of the ES-qZSI is established based on the instantaneous power theory. Then the average voltage vector in the coordinate system is optimized by the power cost function. Finally, the average voltage vector is used as the modulation signal, and the corresponding switching signal with fixed frequency is generated by the shoot-through segment space vector pulse width modulation (SVPWM) technology. The simulation results show that the ES-qZSI realizes six shoot-through actions per control cycle and achieves the constant frequency control of the system, which verifies the correctness of the proposed control strategy.
Źródło:
Archives of Electrical Engineering; 2022, 71, 1; 21-35
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Z-source converter in photovoltaic grid-connected transformer-less inverter
Autorzy:
Farhangi, B.
Farhangi, S.
Powiązania:
https://bibliotekanauki.pl/articles/262715.pdf
Data publikacji:
2006
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:
photovoltaic power conditioner (PV PCU)
gird-connected systems
Z-source inverter
inverter
Opis:
In PV grid connected power conditioners, usually both stepping-up the PV array voltage, and stepping-down the dc bus voltage for injection of a sinusoidal current to the grid is required. In this paper the design procedure of Z-source converter as a single phase PV grid connected transformer-less inverter is presented. The converter has one switch less than the conventional two stage power conditioner, which leads to reduction of cost. An optimum modulation pattern for the switches is proposed, and the low frequency ripple of the converter is modeled. The design of the converter is verified by simulation.
Źródło:
Electrical Power Quality and Utilisation. Journal; 2006, 12, 2; 41-45
1896-4672
Pojawia się w:
Electrical Power Quality and Utilisation. Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of loss distribution of conventional boost, Z-source and Y-source converters for wide power and voltage range
Autorzy:
Gadalla, B. S.
Schaltz, E.
Siwakoti, Y.
Blaabjerg, F.
Powiązania:
https://bibliotekanauki.pl/articles/136154.pdf
Data publikacji:
2017
Wydawca:
EEEIC International Barbara Leonowicz Szabłowska
Tematy:
boost converter
Z-source converter
Y-source converter
winding losses
core losses
gain
thermal design
reliability
Opis:
Boost converters are needed in many applications which require the output voltage to be higher than the input voltage. Recently, boost type converters have been applied for industrial applications, and hence it has become an interesting topic of research. Many researchers proposed different impedance source converters with their unique advantages as having a high voltage gain in a small range of duty cycle ratio. However, the thermal behaviour of the semiconductor devices and passive elements in the impedance source converter is an important issue from a reliability point of view and it has not been investigated yet. Therefore, this paper presents a comparison between the conventional boost, the Z-source, and the Y-source converters based on a thermal evaluation of the semiconductors. In addition, the three topologies are also compared with respect to their efficiency. In this study the results show that the boost converter has higher efficiency than the Z-source and Y-source converter for these specific voltage gain of 2 and 4. The operational principle, mathematical derivations, simulation results and final comparisons are presented in this paper.
Źródło:
Transactions on Environment and Electrical Engineering; 2017, 2, 1; 1-9
2450-5730
Pojawia się w:
Transactions on Environment and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiphase Z-source inverter using maximum constant boost control
Autorzy:
Kouzou, A.
Abu-Rub, H.
Powiązania:
https://bibliotekanauki.pl/articles/229291.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Z-source inverter
multiphase inverter
five phase machine
shoot-through
boost factor
duty cycle
Opis:
This paper deals with the impedance source (Z-source) multiphase inverter, where the maximum constant boost control method is studied and analyzed in the general case of number of phases. On the other side the impact of the modulation index and the number of phases on the duty cycle shoot-through and on the gain of the output voltage ranges is presented. To validate advantages of the Z-source multiphase inverter, the proposed topology and the maximum constant boost control are implemented in simulation and in real time experimentation with Z-source five phase inverter. The output voltage is applied to two parallel loads, a five phase resistive load and a five phase induction machine.
Źródło:
Archives of Control Sciences; 2013, 23, 1; 107-126
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling and reliability analysis of three phase z-source AC-AC converter
Autorzy:
Prasad, H.
Maity, T.
Powiązania:
https://bibliotekanauki.pl/articles/140661.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
real-time digital simulation (RTDS)
field programming gate array (FPGA)
hardware-in-the-loop (HIL)
z-source ac-ac converter
PID controller
Opis:
This paper presents the small signal modeling using the state space averaging technique and reliability analysis of a three-phase z-source ac-ac converter. By controlling the shoot-through duty ratio, it can operate in buck-boost mode and maintain desired output voltage during voltage sag and surge condition. It has faster dynamic response and higher efficiency as compared to the traditional voltage regulator. Small signal analysis derives different control transfer functions and this leads to design a suitable controller for a closed loop system during supply voltage variation. The closed loop system of the converter with a PID controller eliminates the transients in output voltage and provides steady state regulated output. The proposed model designed in the RT-LAB and executed in a field programming gate array (FPGA)-based real-time digital simulator at a fixedtime step of 10 μs and a constant switching frequency of 10 kHz. The simulator was developed using very high speed integrated circuit hardware description language (VHDL), making it versatile and moveable. Hardware-in-the-loop (HIL) simulation results are presented to justify the MATLAB simulation results during supply voltage variation of the three phase z-source ac-ac converter. The reliability analysis has been applied to the converter to find out the failure rate of its different components.
Źródło:
Archives of Electrical Engineering; 2017, 66, 4; 731-743
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solar photovoltaic interconnected ZSI-unified power quality conditioner to enhance power
Autorzy:
Raja, A.
Vijayakumar, M.
Karthikeyan, C.
Powiązania:
https://bibliotekanauki.pl/articles/2173533.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Z-source inverter
photovoltaic
power quality
unified power quality conditioner
UPQC
total harmonic distortion
falownik typu Z
fotowoltaika
jakość energii
zunifikowany kondycjoner jakości energii
współczynnik zawartości harmonicznych
Opis:
In order to ensure that all the connected Equipment in the distribution network operates smoothly, the voltage stability of photovoltaic (PV) integrated distribution systems is very important. Sustaining the voltage profile when integrating PV is a particularly difficult issue. The primary goal of this article is to provide a consistent voltage profile to a sensitive load. A three-phase PV integrated distribution system has been chosen for investigation. An innovative feature of this system is that UPQC DVR and STATCOM systems are powered by Z-source inverters instead of traditional inverters. The ability to actively decouple power is the primary benefit of utilizing a Z-source inverter. The objective of the study effort is to use this new UPQC to synchronize a solar PV system with the distribution system. For the UPQC with battery energy storage system (BESS), the research study examines and develops the most appropriate control approach. A UPQC is a device that is used to integrate solar panels and improve the voltage stability of the distribution system. The prototype model is being developed, and the experimental findings confirm the main objective.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 1; e140015, 1--10
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel two-phase interleaved parallel bi-directional DC/DC converter
Autorzy:
Zhang, Baoge
Hong, Deyu
Wang, Tianpeng
Zhang, Zhen
Wang, Donghao
Powiązania:
https://bibliotekanauki.pl/articles/1841340.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bi-directional DC/DC converter
energy storage system
interleaved parallel structure
voltage stress
Z-source network
dwukierunkowy przetwornik DC/DC
system magazynowania energii
przeplatana struktura równoległa
stres napięciowy
Sieć źródłowa Z
Opis:
The energy storage system (ESS) is an important way to improve the power quality of renewable energy sources (such as solar energy and wind energy). A bi-directional DC/DC converter is an essential part of the ESS to achieve bi-directional energy transfer. According to the characteristics of the low-voltage gain and high-voltage stress of switches in the existing bi-directional DC/DC converter, this study proposes a novel two-phase interleaved parallel bi-directional DC/DC converter. The converter can effectively combine the advantages of a Z-source network and interleaved parallel structure. The working principle, the boost mode and buck mode of the converter are analyzed in detail. In addition, the voltage conversion ratios under the two modes are deduced. The control strategy of the two-phase interleaved parallel bi-directional DC/DC converter is introduced in detail. Furthermore, the main working waveforms of the system under each working mode are verified by building a simulation experiment model using MATLAB/Simulink. The simulation results show that the system has advantages of high-voltage gain, low-voltage stress of switches and automatic current sharing between inductors.
Źródło:
Archives of Electrical Engineering; 2021, 70, 1; 219-231
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stabilizing of Z-pinch and Plasma Focus discharges due to thick wires
Autorzy:
Kubeš, P.
Kravárik, J.
Paduch, M.
Tomaszewski, K.
Scholz, M.
Karpinski, L.
Szydlowski, A.
Bakshaev, Y.
Blinov, P.
Chernenko, A. S.
Gordeev, E. M.
Dan’ko, S. A.
Korolev, V. D.
Shashkov, A.
Tumanov, V. I.
Romanova, V.
Klír, D.
Powiązania:
https://bibliotekanauki.pl/articles/146991.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
plasma focus
X-ray source
XUV spectroscopy
Z-pinch
Opis:
This paper presents the results of the diagnostics observing the impact of the plasma sheath imploded in megaamper Z-pinch or plasma focus devices onto the Al or C wires of 30-300 mi m in diameter fixed in the center axis. The discharges were operated with a maximum current of 1.5-3 MA at two devices, PF 1000 at IPFLM in Warsaw, and Stand 300 at RRC Kurchatov Institute in Moscow. At the plasma impact the 10-50 ns XUV pulse was emitted in K-shell lines from the ring or helical-like forms on the surface of the wire corona. The scenario of the production of the non-equilibrium intensities of the C and Al H-like and He-like lines is discussed considering fast transformation of magnetic field, electron beams acceleration, total ionization of the ions and fast recombination in dense and magnetized wire corona.
Źródło:
Nukleonika; 2001, 46, 1; 5-7
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie kredytu handlowego w finansowaniu przedsiębiorstw w Polsce
The use of trade credit in business financing in Poland
Autorzy:
Ziętek-Kwaśniewska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/447013.pdf
Data publikacji:
2016
Wydawca:
Mazowiecka Uczelnia Publiczna w Płocku
Tematy:
source of finance
trade credit
trade liabilities
źródło finansowania
kredyt handlowy
zobowiązania z tytułu dostaw i usług
Opis:
Trade credit is a commonly used short-term source of business financing. The use of trade credit in the course of business is determined by a number of factors. In particular, it is noted that trade credit is a spontaneous, easily available and flexible source of funding. The aim of the paper is to examine the use of trade credit as a source of finance of enterprises in Poland. The research was conducted on the basis of data from the Polish Central Statistical Office. The research period covers the years 2009-2014. The research confirmed the significance of trade liabilities in the structure of short-term liabilities, regardless of the size of the enterprise. The data analysis indicates that the importance of trade liabilities varies depending on the sector in which the business operates.
Kredyt handlowy jest powszechnie stosowanym krótkoterminowym źródłem finansowania działalności przedsiębiorstw. Jego wykorzystanie w toku działalności determinowane jest wieloma czynnikami. W szczególności, podkreśla się, że kredyt handlowy jest spontanicznym, łatwo dostępnym i elastycznym źródłem finansowania. Celem artykułu jest analiza wykorzystania kredytu handlowego jako źródła finansowania przez przedsiębiorstwa w Polsce. Badania przeprowadzono na podstawie danych Głównego Urzędu Statystycznego. Okres analizy obejmuje lata 2009-2014. W wyniku badań potwierdzono istotność zobowiązań handlowych w strukturze zobowiązań krótkoterminowych, niezależnie od wielkości przedsiębiorstwa. Analiza danych wskazuje na zróżnicowane znaczenie zobowiązań handlowych w zależności od sekcji, w której działa przedsiębiorstwo.
Źródło:
Zeszyty Naukowe PWSZ w Płocku. Nauki Ekonomiczne; 2016, 1(23); 203 - 216
1644-888X
Pojawia się w:
Zeszyty Naukowe PWSZ w Płocku. Nauki Ekonomiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Facebook as a Source of Political Information in Poland
Facebook jako źródło informacji politycznej w Polsce
Autorzy:
Jakubowski, Jakub
Halagiera, Denis
Stępińska, Agnieszka
Trilling, Damian
Powiązania:
https://bibliotekanauki.pl/articles/2163333.pdf
Data publikacji:
2022-09-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
media use
political information
Facebook
source of information
Polska
korzystanie z mediów
informacja polityczna
źródło informacji
Polska
Opis:
The aim of the paper is to study the role of Facebook as a source of political information for Polish media users. The study combines a survey, a content analysis of Polish-language news items disseminated through Facebook, and computational methods. Findings revealed that Facebook has already gained a position as a crucial agent of political communication across generations in Poland. Most Poles use social media for acquisition of information about politics at least once a day and Facebook is the most popular source among them, what is especially apparent among young people (18–25 years old). Friends and family play also an important role in this process as either gatekeepers or opinion leaders. Additionally, our study revealed that topic (politics) and context (elections) matter when it comes to news consumption and news sharing on social media.
Celem artykułu jest analiza roli Facebooka jako źródła informacji politycznej w Polsce. W badaniu wykorzystano wyniki ankiety, analizę zawartości polskojęzycznych przekazów medialnych rozpowszechnionych w ramach portalu Facebook oraz metody obliczeniowe. Wyniki badania wykazały, że Facebook stał się ważnym źródłem informacji politycznej dla wszystkich pokoleń Polaków, w szczególności zaś dla najmłodszych dorosłych (18–25 lat). Większość użytkowników korzysta z mediów społecznościowych w celu zdobycia informacji o polityce przynajmniej raz dziennie, a Facebook jest dla nich najpopularniejszym źródłem takich informacji. Dużą rolę odgrywają w tym procesie znajomi i rodzina, pełniąc funkcję pośredników. Ponadto nasze badanie wykazało znaczenie tematyki informacji (polityka) oraz kontekstu (wybory) dla konsumowania i udostępniania treści w mediach społecznościowych.
Źródło:
Athenaeum. Polskie Studia Politologiczne; 2022, 75; 225-241
1505-2192
Pojawia się w:
Athenaeum. Polskie Studia Politologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulating human motion using Motion Model Units – example implementation and usage
Autorzy:
Kłodkowski, Adam
Kurinov, Ilya
Orzechowski, Grzegorz
Mikkola, Aki
Powiązania:
https://bibliotekanauki.pl/articles/27309852.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
motion generation
example with source code
MMU
MOSIM
human simulation
generowanie ruchu
przykład z kodem źródłowym
symulacja człowieka
Opis:
Human motion is required in many simulation models. However, generating such a motion is quite complex and in industrial simulation cases represents an overhead that often cannot be accepted. There are several common file formats that are used nowadays for saving motion data that can be used in gaming engines or 3D editing software. Using such motion sets still requires considerable effort in creating logic for motion playing, blending, and associated object manipulation in the scene. Additionally, every action needs to be described with the motion designed for the target scene environment. This is where the Motion Model Units (MMU) concept was created. Motion Model Units represent a new way of transferring human motion data together with logic and scene manipulation capabilities between motion vendors and simulation platforms. The MMU is a compact software bundle packed in a standardized way, provides machine-readable capabilities and interface description that makes it interchangeable, and is adaptable to the scene. Moreover, it is designed to represent common actions in a task-oriented way, which allows simplifying the scenario creation to a definition of tasks and their timing. The underlying Motion Model Interface (MMI) has become an open standard and is currently usable in MOSIM framework, which provides the implementation of the standard for the Unity gaming engine and works on implementation for the Unreal Engine are under way. This paper presents two implementation examples for the MMU using direct C# programming, and using C# for Unity and MOSIM MMU generator as a helping tool. The key points required to build a working MMU are presented accompanied by an open-source code that is available for download and experimenting.
Źródło:
Archive of Mechanical Engineering; 2022, LXIX, 3; 345--373
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Źródła zasobów rodziców wychowujących dzieci z głębszą niepełnosprawnością intelektualną
Sources of Resources for Parents Raising Children with Profound Intellectual Disabilities
Autorzy:
Gumienny, Beata
Powiązania:
https://bibliotekanauki.pl/articles/2148996.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet w Białymstoku. Wydział Pedagogiki i Psychologii
Tematy:
rodzice
źródła zasobów
siły ludzkie
dzieci z głębszą niepełnosprawnością intelektualną
parents
source of resources
human strength
children with profound intellectual disabilities
Opis:
Podjęta problematyka oparta jest na analizie i interpretacji narracji rodziców wychowujących dzieci ze sprzężoną głębszą niepełnosprawnością intelektualną, zebranych w badaniu biograficznym. Celem badań była próba zrozumienia i ukazania subiektywnych znaczeń, jakie rodzice nadają własnym zasobom, odkrywanym w toku konstruowanego życia. Wywiady narracyjne przeprowadzono z dwudziestoma rodzicami, których dobór był celowy ze względu na doświadczanie stresu związanego ze zmianą placówki edukacyjnej dla swoich dzieci. Analiza materiału empirycznego ukazuje pięć źródeł generowania zasobów, czyli źródeł pomnażania sił przez rodziców w biegu ich życia.
The issues raised are based on the analysis and interpretation of the narratives of parents raising children with multiple profound intellectual disabilities, collected in a biographical study. The aim of the research was to try to understand and show the subjective meanings that parents give to their own resources, discovered in the course of the life that they build. Narrative interviews were conducted with twenty parents, who were selected non-randomly, based on their experience of the stress of changing their children’s educational institution. Analysis of the empirical material shows five sources of resource generation, i.e. sources of increased strength for parents in the course of their lives.
Źródło:
Parezja. Czasopismo Forum Młodych Pedagogów przy Komitecie Nauk Pedagogicznych PAN; 2020, 2(14); 62-82
2353-7914
Pojawia się w:
Parezja. Czasopismo Forum Młodych Pedagogów przy Komitecie Nauk Pedagogicznych PAN
Dostawca treści:
Biblioteka Nauki
Artykuł

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