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Wyświetlanie 1-15 z 45
Tytuł:
11 i 12 sierpnia
Autorzy:
Jędrzejewski, Tadeusz "Wszebor".
Powiązania:
Powstaniec Warszawski 1998, nr 27, s. 46-51
Data publikacji:
1998
Tematy:
Pluton "Jerzyki" AK działania bojowe Warszawa 1944 r. pamiętniki żołnierskie
Powstanie warszawskie (1944)
Pamiętniki żołnierskie polskie 1939-1945 r.
Pamiętniki żołnierskie
Opis:
Wspomnienia żołnierza plutonu "Jerzyki" AK z powstania warszawskiego.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Analysis of Thermal Stability of CrCN Coatings Deposited on Nitrided Substrates Using Modulated Temperature Thermodilatometry
Autorzy:
Mydłowska, K.
Myśliński, P.
Szparaga, Ł.
Ratajski, J.
Gilewicz, A.
Jędrzejewski, R.
Powiązania:
https://bibliotekanauki.pl/articles/352462.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
antiwear coatings
nitriding
residual stress
thermal stability
thermodilatometry
Opis:
The aim of the research was to investigate the influence of nitriding of the substrate made of 42CrMo4 steel on thermal stability of the antiwear CrCN coating deposited on its surface using Cathodic Arc Evaporation method. Samples of non-nitrided and nitrided substrate/CrCN coating systems were tested with Modulated Temperature Thermodilatometry, which program included system annealing in 26 h, temperature of 290°C and argon atmosphere. Recorded during tests, changes in substrate elongation in response for changes of sample temperature, enabled qualitative determination of changes in stress states in the coatings as a result of samples annealing. Annealing of the system with nitrided substrate resulted in smaller change in residual stress in coating than for the system with non-nitrided substrate, which can indicate its better thermal stability. Values of residual stresses in coatings calculated by sin2ψ method before and after annealing on the basis of tests performed using X-Ray diffraction, agree with results of dilatometric tests.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2A; 771-776
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Artykuł 28 § 1 k.k. po nowelizacji z dnia 20 lutego 2015 r. Uwagi na temat konieczności oddzielania strony podmiotowej czynu zabronionego od winy
Autorzy:
Zbigniew, Jędrzejewski,
Powiązania:
https://bibliotekanauki.pl/articles/902838.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
prohibited act
mens rea
intentional character of an offence
unintentional character of an offence
guilt
act committed while being in justifiable error as to a circumstance constituting a feature of an prohibited act
Opis:
The object of analysis is the amended art. 28 § 1 of the Penal Code, which stipulates that „whoever commits an act while being in justifiable error as to a circumstance constituting a feature of an prohibited act, shall not commit a crime”. The new regulation of 28 § 1 of the Penal Code is the next attempt to statutorily define the concept of an offence based on the methodology of a strict separation of the object of evaluation from the evaluation itself, that is, primarily a radical separation of mens rea of a prohibited act from guilt. Therefore, the authors of the change have consistently attempted to eliminate all normative attributes from the scope of „recklessness” and „negligence”. This is a result of the view that assumes a pure descriptive character of the set of criminal offence features (Ger. „Tatbestand”) including subjective features (offences of intentional and unintentional character). In this context, acts committed while being in justifiable error as to a circumstance constituting a feature of a prohibited act exclude guilt, however the fulfilment of the features of criminal acts of unintentional character is limited to the fulfilment of objective features (a consequence of the concept of the unintentional character of an offence as a plain negation of intent). The negative wording of art. 1 § 3 of the Penal Code, the objective and general interpretation of the term found in art. 9 § 2 „could have foreseen” (a transfer of the so-called objective foreseeability to the category of objective attribution) and the concept of committing an act while being in justifiable error as to a circumstance constituting a feature of a prohibited act excluding guilt lead, in the area of unintentional character of an offence, to the presumption of guilt on the basis of the fulfilling only the objective features of a criminal act. The author of the article demonstrates the inaccuracy of this argument for a strictly descriptive character of the features of a prohibited act, and in particular the features of intent (intentional character of an offence). The object of intent (a feature of a criminal offence) has a evaluative character (evaluation), therefore determining intent can generally constitute a premise for accepting guilt (intended), unless the circumstance of excluding guilt exceptionally occurs. In the case of an unintentional character of an act, such a relation does not occur, and the guarantee functions (the rule of positive establishment of the perpetrator’s guilt) thus require subjective (specific and individual evaluation) interpretation of the premise „could have foreseen” found in art. 9 § 2 of the Penal Code.
Źródło:
Studia Iuridica; 2016, 65; 25-40
0137-4346
Pojawia się w:
Studia Iuridica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Carbon Doped Austenitic Stainless Steel Coatings Obtained by Reactive Magnetron Sputtering
Autorzy:
Fryska, S.
Giza, P.
Jedrzejewski, R.
Baranowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/1402218.pdf
Data publikacji:
2015-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.60.-p
68.60.Bs
68.55.J-
81.15.-z
Opis:
The paper presents the results of investigations of carbon doped austenitic stainless steel coatings (carbon S-phase) obtained by the reactive magnetron sputtering in the reactive atmosphere composed of argon and methane as a carbon source. Stainless steel targets were sputtered under different conditions. During the experiments the argon to methane proportion varied within a range 11/2-7/6. The other parameters such as temperature, pressure, sputtering power, etc. were kept constant. The phase composition was determined using the X-ray diffraction. Electron probe microanalysis (energy dispersive spectroscopy and wavelength dispersive spectroscopy) and glow discharge optical emission spectrometry techniques were used to study element composition of the coatings. Microstructure was investigated by scanning electron microscopy. It was found that varying the methane volume in the reactive atmosphere, it is possible to control the lattice parameter of the carbon S-phase.
Źródło:
Acta Physica Polonica A; 2015, 128, 5; 879-882
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and performance study of a small-scale waste heat recovery turbine
Autorzy:
Rusanov, R.
Jędrzejewski, Ł.
Klonowicz, P.
Żywica, G.
Lampart, P.
Rusanov, A.
Powiązania:
https://bibliotekanauki.pl/articles/175197.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cogeneration unit
low-boiling working media
numerical method
turbine
radialaxial stage
Opis:
The paper presents the design process of a radial-axial turbine working with SES36 working fluid. First, the mean-line design process is performed and then the geometry is developed. In the next stage the numerical verification is performed taking into account the real properties of the working fluid. The properties are implemented via a look-up table and by a modified Benedict-Webb-Rubin equation of state. The presented turbine is characterized by a very small stator outflow angle which is about 4.5◦ but despite this small value, the efficiency of the machine is relatively high and equal to about 88%. The influence of internal leakages has also been investigated.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2016, 133; 145-162
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the Content of Promoters in Magnetite and Wustite Phases in the Fused Iron Catalyst
Autorzy:
Lendzion-Bieluń, Z.
Jędrzejewski, R.
Powiązania:
https://bibliotekanauki.pl/articles/779352.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
iron catalyst
promoters
ammonia synthesis
selective etching
Opis:
Taking advantage of differences in etching rates of crystallographic phases, forming an oxidized form of the fused iron catalyst, a content of promoters in main phases, magnetite and wustite, was determined. A calcium oxide content in magnetite and wustite was 0.54 wt% and 3.59 wt%, respectively. Aluminum oxide was found in the magnetite phase, and its content was 4.5 wt%. The third promoter, potassium oxide, was almost completely located outside these phases. XRD and ICP-OES instrumental methods were used in the investigations.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 1; 27-29
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of synthesis parameters of graphene/Fe₂O₃ nanocomposites on their structural and electrical conductivity properties
Autorzy:
Jędrzejewska, A.
Sibera, D.
Narkiewicz, U.
Pełech, R.
Jędrzejewski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1055069.pdf
Data publikacji:
2017-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.48.Gh
65.80.Ck
81.07.Bc
Opis:
Due to its fascinating properties such as high surface area, very good electrical and thermal conductivity, excellent mechanical properties, optical and electrochemical properties, graphene may be the ideal material as a substrate of nanocomposites for applications in electronics. Graphene layer can be used as a conductive matrix allowing good contact between crystallites of nanomaterials. Despite pure graphene, its composites with other species can be of interest. In this paper the results of studies on the effect of methods and parameters of synthesis, for obtaining composites graphene/Fe₂O₃ on their structural properties and electrical properties are presented. A series of experiments was conducted using a commercially available graphene (Graphene Nanopowder AO-3) and iron nitrate. The materials were obtained using two pressure methods: pressure synthesis in the autoclave and synthesis in the microwave solvothermal reactor. The syntheses were carried out in a solution of ethanol. The specific surface area, helium density, morphology, phase composition, thermal properties and electric conductivity of the obtained composites were investigated.
Źródło:
Acta Physica Polonica A; 2017, 132, 4; 1424-1429
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Global Structure of the Falicov-Kimball Model Ground State Phase Diagram
Autorzy:
Lach, J.
Łyżwa, R.
Jędrzejewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1929588.pdf
Data publikacji:
1993-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.Mb
71.30.+h
Opis:
The two-state spinless Falicov-Kimball model on a one-dimensional lattice is studied by means of well-controlled numerical procedures. Restricted phase diagrams in the grand-canonical ensemble and at zero temperature are constructed. The evolution of these phase diagrams, as the interaction parameter U is varied, including the band structures corresponding to configurations of localized particles (ions) and densities of mobile particles (electrons), is monitored. The changes observed enable us to draw conclusions for the global structure of the phase diagram and to make a qualitative plot of such a diagram. Particular attention is paid to the possibility of conductor-insulator transitions. The results obtained suggest that the system is an insulator for all U only if the electron and ion densities ρ$\text{}_{e}$,ρ$\text{}_{i}$ satisfy the conditions: ρ$\text{}_{e}$ + ρ$\text{}_{i}$ = 1, |ρ$\text{}_{i}$ - 1/2| ≤ δ < 1/2. For all other pairs (ρ$\text{}_{e}$,ρ$\text{}_{i}$) there is a critical U at which the system undergoes a conductor-insulator transition.
Źródło:
Acta Physica Polonica A; 1993, 84, 2; 327-344
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of social interactions on demand curves for innovative products
Autorzy:
Maciejowska, K.
Jędrzejewski, A.
Kowalska-Pyzalska, A.
Weron, R.
Powiązania:
https://bibliotekanauki.pl/articles/1075443.pdf
Data publikacji:
2016-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
89.65.Gh
87.23.Ge
Opis:
Empirical studies suggest that word-of-mouth strongly influences the innovation diffusion process and is responsible for the "S" shape of the adoption curve. However, it is not clear how word-of-mouth affects demand curves for innovative products and strategic decisions of producers. Using an agent-based model of innovation diffusion, which links consumer opinions with reservation prices, we show that a relatively strong word-of-mouth effect can lead to the creation of two separated price-quantity regimes, with a nonlinear transition between them. A small shift of the product's market price can result in a drastic change of the demanded quantity and, hence, the revenues of a firm. Using Monte Carlo simulations and mean-field treatment we demonstrate that word-of-mouth may have ambiguous consequences and should be taken into account when designing marketing strategies.
Źródło:
Acta Physica Polonica A; 2016, 129, 5; 1045-1049
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 45

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