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Wyszukujesz frazę "Pietrzak, Marcin" wg kryterium: Autor


Tytuł:
Książę Niccola Machiavellego jako przykład zastosowania toposu zakulisowości
Autorzy:
Pietrzak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/679110.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Warszawski. Katedra Italianistyki. Polskie Towarzystwo Retoryczne
Opis:
To explain the phenomenon of the popularity of Machiavelli's Prince one has to point out the mode of communication that is used by the author. He has presented himself as a professional in the field of politics, and he wants to see his readers as professionals as well. The typically cold and seemingly unadorned style of Machiavelli’s prose underlines the impersonal relation between the author and his object of consideration. In the framework of rhetorical theory, this mode of communication can be described as searching for the ways to gain, as Kenneth Burke would put this, rhetorical consubstantiation. The speaker talks to the audience in a manner that is characteristic of backstage communication, giving them the hope to be joining a community of professionals. They can join this community by following the master of the political art: Machiavelli himself. This mode of communication can be found elsewhere in literature, especially where the element of cynicism appears, as its nature consists in precisely this form of rhetorical backstage speaking. It is present in the parts of Thucydides’ Peloponnesian War and on the pages of Plato’s dialogues, where the founder of the Academy confronts Socrates’ moralism with the immoralist perspectives of the sophists.
Aby wyjaśnić fenomen popularności Księcia Niccola Machiavellego, należy wskazać na osobliwy sposób komunikowania się autora tego dzieła z czytelnikiem. Autor przedstawia siebie jako fachowca z dziedziny sztuki politycznej, za swoich czytelników zaś chce mieć jedynie tych, którzy, jak on, znają się na rzeczy. Charakterystyczny zimny i, z pozoru przynajmniej, nieozdobny styl, jakim posługuje się autor Księcia, podkreśla dodatkowo profesjonalny i nieosobisty stosunek pisarza do przedmiotu jego rozważań. W kategoriach teorii retorycznej taki sposób komunikowania się daje się opisać jako poszukiwanie okrężnych dróg do tego, co Kenneth Burke określał mianem konsubstancjacji retorycznej. Mówca stara się przemawiać do widowni w sposób charakterystyczny dla komunikacji zakulisowej, aby w ten sposób dać jej członkom poczucie uczestnictwa we wspólnocie fachowców, do której włączeni są przez podążanie za mistrzem w sztuce, który reprezentowany jest przez przemawiającego do nich autora Księcia. Z tego rodzaju komunikowaniem spotykamy się w dziejach kultury wszędzie tam, gdzie do głosu dochodzi element cyniczności, którego istotą jest właśnie ów zakulisowy sposób komunikacji. Znaleźć go można na przykład we fragmentach Wojny peloponeskiej Tukidydesa czy na kartach dialogów Platona, w których konfrontuje on moralizm Sokratesa z immoralizmem sofistów.
Źródło:
Res Rhetorica; 2019, 6, 1
2392-3113
Pojawia się w:
Res Rhetorica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Umierający Sokrates i Wielka Matka
The Dying Socrates and the Great Mother
Autorzy:
Pietrzak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2109004.pdf
Data publikacji:
2021-08-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Sokrates
Artemida
Thargelia
mit bohaterski
nieśmiertelność
Carl Gustav Jung
Erich Neumann
Platon
Wielka Matka
Socrates
Artemis
heroic myth
immortality
Plato
Great Mother
Opis:
Ostatnie dni życia Sokratesa, które, jak wskazują na to źródła starożytne, miały miejsce na przełomie miesięcy Mounuchiōn i Thargēliōn, wpisują się w schemat sakralnego kalendarza Aten jako widowisko dopełniające rytualny cykl ofiarniczy związany z upamiętnieniem kreteńskiej wyprawy Tezeusza i obchodzonego bezpośrednio po nim święta Thargeliów. Sokrates umiera jako ofiara złożona Artemidzie – Wielkiej Matce, a jednocześnie realizuje mit bohaterski. Mit ten na płaszczyźnie jungowskiej psychoanalizy oznacza uwolnienie się świadomego ego spod władzy nieświadomości reprezentowanej przez archetyp Wielkiej Matki. Kontekst mityczno-psychologiczny pozwala nadać nową interpretację dyskusjom, które zapisał Platon w dialogach powiązanych ze śmiercią Sokratesa. Przede wszystkim w nowym świetle stawiają one Sokratejską majeutykę, jako służbę Artemidzie, a także rozważania o nieśmiertelności duszy oraz opowiadane przy ich okazji mity eschatologiczne, które zapisał Platon na kartach Fedona.
The last days of Socrates’ life, which, as indicated by ancient sources, took place at the turn of the months of Mounuchiōn and Thargēliōn, fit into the scheme of the sacral calendar of Athens as a spectacle completing the ritual sacrificial cycle connected with the commemoration of the Cretan expedition of Theseus and the Thargēliōn festival celebrated immediately after it. Socrates dies as a sacrifice offered to Artemis, the Great Mother, and at the same time fulfills the heroic myth. This myth on the Jungian psychoanalysis plane signifies the liberation of the conscious ego from the power of the unconscious, represented by the Great Mother archetype. The mythological-psychological context allows us to give a new interpretation to the discussions which Plato noted in his dialogues and which are connected with the death of Socrates. Above all, they put in a new light the Socratic majeutics, as about the service of Artemis, as well as the consideration of the immortality of the soul and the eschatological myths told on their occasion, which Plato wrote down on the pages of the Phaedo.
Źródło:
Acta Universitatis Lodziensis. Folia Historica; 2021, 108; 9-31
0208-6050
2450-6990
Pojawia się w:
Acta Universitatis Lodziensis. Folia Historica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Warning Models of Banking Crises: VIX and High Profits
Autorzy:
Bańbuła, Piotr
Pietrzak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2075289.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
early warning models
financial stability
Opis:
We built a logistic regression Early Warning Models (EWM) for banking crises in a panel of 47 countries based on data from 1970–2014 using candidate variables that cover macro and financial market indicators. We find that VIX, a proxy of global risk-premium, has a strong signalling properties and that low VIX (low price of risk) increases likelihood of crisis. It does not only mean that stability leads to instability, but that this tends to be a global rather than a domestic phenomenon. We also find that particularly high contribution of financial sector to GDP growth often precedes crises, suggesting that such instances are primarily driven by excessive risk taking by financial sector and may not necessarily be sustainable. Other variables that feature prominently include credit and residential prices. Models using multiple variable clearly outperform single variable models, with probability of correct signal extraction exceeding 0.9. Our setting includes country-specific information without using country-specific effects in a regression, which allows for direct application of EWM we obtain to any country, including these that have not experienced a banking crisis
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2021, 4; 381-403
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Spectral and Wavelet Analysis of Stator Current to Detect Angular Misalignment in PMSM Drive Systems
Autorzy:
Pietrzak, Przemysław
Wolkiewicz, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1956007.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
fault diagnosis
permanent magnet synchronous motor
angular misalignment
fast Fourier transform
discrete wavelet transform
Opis:
This paper deals with the selected methods of detecting angular misalignment in drive systems with a permanent magnet synchronous motor (PMSM), which are based on the analysis of the stator phase current signal, as well as their experimental verification and comparison. The proposed and compared methods are spectral analysis and wavelet analysis of the stator current, stator current envelope, stator current space vector module. Furthermore, the influence of power supply frequency and load torque on the performance of the proposed diagnostic methods is also discussed. The experimental tests were carried out for an undamaged motor and for two levels of angular misalignment. The article discusses the question of exactly what damage symptoms can be extracted from each of the methods. In the case of spectral analyses, it is demonstrated which multiplicities of the failure frequency are the most sensitive to misalignment and the least sensitive to changes in motor operating condition, which may be considered novel in the case of drive systems with permanent magnet motors. It is also proven that discrete wavelet transform (DWT) of the envelope and monitoring of the value of the relevant components allows the detection of misalignment with the availability of measuring current only in one phase in various motor operating conditions.
Źródło:
Power Electronics and Drives; 2021, 6, 41; 42-60
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stator winding fault detection of permanent magnet synchronous motors based on the bispectrum analysis
Autorzy:
Pietrzak, Przemysław
Wolkiewicz, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2173641.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fault diagnosis
condition monitoring
inter-turn short circuits
permanent magnet synchronous motor
bispectrum
fast Fourier transform
błędna diagnoza
monitorowanie stanu
zwarcia międzyzwojowe
silnik synchroniczny z magnesami trwałymi
bispektrum
szybka transformata Fouriera
Opis:
The popularity of high-efficiency permanent magnet synchronous motors in drive systems has continued to grow in recent years. Therefore, also the detection of their faults is becoming a very important issue. The most common fault of this type of motor is the stator winding fault. Due to the destructive character of this failure, it is necessary to use fault diagnostic methods that facilitate damage detection in its early stages. This paper presents the effectiveness of spectral and bispectrum analysis application for the detection of stator winding faults in permanent magnet synchronous motors. The analyzed diagnostic signals are stator phase current, stator phase current envelope, and stator phase current space vector module. The proposed solution is experimentally verified during various motor operating conditions. The object of the experimental verification was a 2.5 kW permanent magnet synchronous motor, the construction of which was specially prepared to facilitate inter-turn short circuits modelling. The application of bispectrum analysis discussed so far in the literature has been limited to vibration signals and detecting mechanical damages. There are no papers in the field of motor diagnostic dealing with the bispectrum analysis for stator winding fault detection, especially based on stator phase current signal.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 2; art. no. e140556
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stator Winding Fault Detection of Permanent Magnet Synchronous Motors Based on the Short-Time Fourier Transform
Autorzy:
Pietrzak, Przemysław
Wolkiewicz, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2175935.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
fault diagnosis
condition monitoring
inter-turn short circuit
permanent magnet synchronous motor
short-time Fourier transform
Opis:
In modern drive systems, the high-efficient permanent magnet synchronous motors (PMSMs) have become one of the most substantial components. Nevertheless, such machines are exposed to various types of faults. Hence, on-line condition monitoring and fault diagnosis of PMSMs have become necessary. One of the most common PMSM faults is the stator winding fault. Due to the destructive character of this failure, it is necessary to use fault diagnostic methods that allow fault detection at its early stage. The article presents the results of experimental studies obtained from fast Fourier transform (FFT) and short-time Fourier transform (STFT) analyses of the stator phase current, stator phase current envelope and stator phase current space vector module. The superiority of the proposed method over the classical approach based on the stator current analysis using FFT is highlighted. The proposed solution is experimentally verified under various motor operating conditions. The application of STFT analysis discussed so far in the literature has been limited to the fault diagnosis of induction motors and the narrow range of the analysed motor operating conditions. Moreover, there are no works in the field of motor diagnostics dealing with STFT analysis for stator windings based on the stator current envelope and the stator current space vector module.
Źródło:
Power Electronics and Drives; 2022, 7, 42; 112--133
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Multivariate DCC-GARCH Model with Interdependence among Markets in Conditional Variances’ Equations
Wielowymiarowy model DCC-GARCH z uwzględnieniem współzależności między rynkami w zakresie warunkowej wariancji
Autorzy:
Fałdziński, Marcin
Pietrzak, Michał Bernard
Powiązania:
https://bibliotekanauki.pl/articles/1364901.pdf
Data publikacji:
2015-12-31
Wydawca:
Główny Urząd Statystyczny
Tematy:
DCC-GARCH model
interdependence
conditional variance
model DCC-GARCH
współzależności
warunkowa wariancja
Opis:
The article seeks to investigate the issue of interdependence that during crisis periods in the capital markets is of particular importance due to the likelihood of causing a crisis in the real economy. The research objective of the article is to identify this interdependence in volatility. Therefore, first we propose our own modification of the DCC-GARCH model which is so designed as to test for interdependence in conditional variance. Then, the DCC-GARCH-In model was used to study interdependence in volatility of selected stock market indices. The results of the research confirmed the presence of interdependence among the selected markets.
W artykule podjęto zagadnienie współzależności między rynkami, które w sytuacjach kryzysowych na rynkach kapitałowych nabiera szczególnego znaczenia, ze względu na możliwość spowodowania kryzysu w sferze realnej. Celem proponowanego artykułu jest identyfikacja współzależności w zakresie zmienności. W związku z tym, zaprezentowano najpierw autorską modyfikację modelu DCC-GARCH, w którego konstrukcji uwzględniono wpływ zmienności ze strony innych rynków. Zaproponowana specyfikacja modelu DCC-GARCH-In pozwala na badanie współzależności między zmiennymi w zakresie wariancji warunkowej. Następnie model DCC-GARCH-In zastosowany został do badania współzależności w zakresie zmienności dla wybranych indeksów giełdowych. Wyniki przeprowadzonych badań pozwoliły na potwierdzenie występowania wzajemnego oddziaływania między wybranymi rynkami w zakresie zmienności.
Źródło:
Przegląd Statystyczny; 2015, 62, 4; 397-413
0033-2372
Pojawia się w:
Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania archeologiczne Rynku w Bieruniu Starym, woj. śląskie
Archeological excavations of the market place in Bieruń Stary
Autorzy:
Andrzejewski, Aleksander
Lewandowski, Marcin
Pietrzak, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/941791.pdf
Data publikacji:
2004
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
Archaeological excavations on the area of the market place in Bieruń Stary were next stage of researches intended to lead to modernisation and rebuild of the market surface as well as rebuild and partial exchange of the terrain’s infrastructure. As a result of an agreement between a building company and the Preservation Service, after having informed the Investor, the Town and Commune Council in Bieruń Stary, seven exploratory units of total 200 sq m have been marked out. They were located in places where earlier radar and electromagnetic investigations of the ground made with the SIR radar indicated disturbances in stratification. It suggested that archaeological features occurred there. The disturbances were interpreted as remains of a town hall, scales, other market buildings and surfaces hardening the market area (covering with wood, stone pavements). The excavations carried out on the market of Bieruń Stary have yielded considerable collection of artefacts. Together 5875 items have been found; the most numerous group (4565) was constituted by fragments of clay vessels. The frequency of each collection of artefacts in different exploratory units was various and the whole material can be treated as strongly shattered and secondary mixed to a great extent. The artefacts quite regularly saturated stratification of all the units except unit VII where barely 144 specimens have been found. As a result of the excavations it has been stated that in the areas in point there are no remains that could be connected with the town functioning from its location at the end of the 14th till the 17th century. It is possible that the town originally had a different location and different directions of development and no sooner than after the great fire in 1677 a new town regulation took place. Great probability of this hypothesis is well founded by the fact that the oldest traces of the market usage only come from the 2nd half of the 17th century. Also all the discovered relics of wooden buildings are dated to the years immediately after the fire. As far as inter-market buildings are concerned, in the northern part of the market (in a place indicated as a result of the radar investigation) relics of the south-western comer of a building have been revealed. We believe that, with great probability, it can be assumed that it is a remnant of the town scales. In the terrain it manifests in a layer of broken stone being a foundation of inconsiderably preserved comer wall beam. The relic can be preliminarily dated to the 19th century. Unfortunately no other remains of the inter-market building area have been found although their occurrence is suggested by the SIR radar investigation. Similarly, relics of the stone paved road have not been found. Only the presence of earthen layers from the 2nd half of the 17th - the beginning of the 20th century. In the central part of the market, in the place suggested by the SIR investigation, relics of the town hall have not been found. To be quite truthful, there are some relics of an archaeological object, but its fragmentary state excludes any far-reaching conclusions. We think that there is an interesting situation in the south-western frontage of the market where relics of its older, southern frontage have been registered. It should be dated to the period from the 2nd half of the 17th to the end of the 18th century. It was shifted about 13 metres north of the present frontage. A wooden pavement once coming under the arcades has been registered, which is showed by relics of posts placed in the surface of the pavement. Before padding beams were laid, the surface of the market had been strengthened by fascine. Whereas after the liquidation of the original building line and enlargement of the market to its present size its surface (at least in the region under consideration) was paved with broken limestone. It probably happened at the end of the 18th or at the beginning of the 19th century. In the surface the presence of a gutter (a sewer canal) made of different kinds of coniferous wood has been stated. At the beginnings of the 20th century the rebuild of the market surface took place. In the area under investigation it was carefully paved with broken limestone, what undoubtedly contributed to the town’s aesthetics, but unfortunately at the opportunity destroyed the older layers.
Źródło:
Acta Universitatis Lodziensis. Folia Archaeologica; 2004, 24
0208-6034
2449-8300
Pojawia się w:
Acta Universitatis Lodziensis. Folia Archaeologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budowanie marki prestiżowej na przykładzie wybranych azjatyckich koncernów technologicznych
Prestige brand strategy – the case of selected Asian technological companies
Autorzy:
Pietrzak, Joanna
Reysowski, Marek
Krzaczek, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1789308.pdf
Data publikacji:
2020-11-20
Wydawca:
Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego
Opis:
Proces budowania marki prestiżowej obejmuje dwa typy argumentów: społeczny i personalny. Celem niniejszego artykułu było przedstawienie koncepcji budowania marki prestiżowej w branży technologicznej na przykładzie dwóch konkurencyjnych producentów smartfonów, firmy Samsung i Huawei. W oparciu o założenia strategiczne obu tych marek zweryfikowano ich postrzeganie przez polskich konsumentów w kontekście społecznych i indywidualnych wyznaczników prestiżu. Jak wynika z analizy, marka Samsung niesie z sobą więcej wartości symbolicznych niż marka Huawei, jest też odbierana jako marka pozwalająca lepiej wyrazić indywidualną osobowość użytkownika. W pewnym sensie pokrywa się to z założeniami strategicznymi obu marek, w ramach których Samsung mocno akcentuje indywidualizm, natomiast Huawei stawia bardziej na doskonałość technologiczną. Wyniki i wnioski z przedstawionego badania mogą posłużyć producentom sprzętu elektronicznego jako wskazówka w procesie tworzenia wizerunku marek, których charakter ma być odbierany jako prestiżowy.
Due to technological advance, in many sectors of the economy products have become very similar to each other. This is particularly true in relation to advanced technology products, which are often based on the same components and similar technology. This makes it difficult for an average consumer to make an assessment as to their quality and possible superiority. In this situation, brand becomes the most important differentiator and brand strategy has gained in critical importance in most technological companies. In order effectively to communicate with consumers, a brand has to focus on differentiating factors which are not common, and which are not being used by the other companies in an industry. Prestige is one of such original and nonobvious factors, defined in the present study as the ability of a brand to evoke feelings of individual uniqueness and social achievement. The aim of this article is to present Polish consumers’ prestige value perception of two Asian technological brands: Huawei and Samsung. These have been selected due to their leading position on the Polish mobile devices market. Analysis is based on empirical research made by means of CAWI interviews conducted with a sample of 1200 Poles. The research comprises two dimensions of prestige values: individual (uniqueness, personality demonstration, luxury) and social (proof of success, ability to impress others, status symbol). The results suggest that Samsung is perceived as a brand of higher prestige than Huawei in both dimensions: social and individual. Huawei is perceived as being fairly good in terms of proving success and of other social aspects, but it lacks the ability to evoke a feeling of individual uniqueness, personality expression, or luxury.
Źródło:
Gdańskie Studia Azji Wschodniej; 2020, 18; 47-62
2353-8724
Pojawia się w:
Gdańskie Studia Azji Wschodniej
Dostawca treści:
Biblioteka Nauki
Artykuł

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