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Wyświetlanie 1-6 z 6
Tytuł:
Prognozowanie cen aktywów: Eugen F. Fama, Lars P. Hansen, Robert Shiller – laureaci Nagrody Nobla w dziedzinie ekonomii w 2013 r
Autorzy:
K, Waldemar F R Ą C K O W I A
A, Adam Z A R E M B
Powiązania:
https://bibliotekanauki.pl/articles/701814.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Ekonomista; 2014, 4
0013-3205
2299-6184
Pojawia się w:
Ekonomista
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of information on sleep apnoea contained in two symmetric EEG recordings
Autorzy:
Prucnal, Monika A.
Polak, Adam G.
Powiązania:
https://bibliotekanauki.pl/articles/220736.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
sleep apnoea detection
EEG signal
discrete wavelet transforms
Hilbert transforms
analysis of variance
multivariate regression analysis
Opis:
Electroencephalogram (EEG) is one of biomedical signals measured during all-night polysomnography to diagnose sleep disorders, including sleep apnoea. Usually two central EEG channels (C3-A2 and C4-A1) are recorded, but typically only one of them are used. The purpose of this work was to compare discriminative features characterizing normal breathing, as well as obstructive and central sleep apneas derived from these central EEG channels. The same methodology of feature extraction and selection was applied separately for the both synchronous signals. The features were extracted by combined discrete wavelet and Hilbert transforms. Afterwards, the statistical indexes were calculated and the features were selected using the analysis of variance and multivariate regression. According to the obtained results, there is a partial difference in information contained in the EEG signals carried by C3-A2 and C4-A1 EEG channels, so data from the both channels should be preferably used together for automatic sleep apnoea detection and differentiation.
Źródło:
Metrology and Measurement Systems; 2019, 26, 2; 229-239
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Why to organize Art & Science projects at Nencki Institute?
Autorzy:
Szewczyk, Adam
Fabczak, Hanna
Olszyński, Marek A.
Powiązania:
https://bibliotekanauki.pl/articles/704562.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
art
science
biology
Nencki Institute
Opis:
In this paper we described three Art & Science projects organized by the Nencki Institute of Experimental Biology (Polish Academy of Sciences), Marcel Nencki Foundation for the Support of Biological Sciences and the Art Department of the University of Rzeszów. First project, celebrating the 100th anniversary of theNencki Institute, was entitled “Biological imaging: inspiration by invisible world” and took place in Mikołajki in 2017. Next two projects were relating to “Art of Biodiversity” (Rzeszów, 2018) and “Power of Biological Structures” (Przeworsk, 2019). The aim of the projects was to introduce ideas of modern experimental biology to artist. All symposia/workshops were followed by few exhibitions at the Nencki Institute of Experimental Biology, Art Department of the University of Rzeszów, etc. Some of paintings originated during these projects established Nencki Art Collection, collection of modern art at Nencki Institute of Experimental Biology.
Źródło:
Nauka; 2019, 4
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations on Mechanical Properties of Bio-Waste Micro Particles Reinforced Phenol Formaldehyde Composites
Autorzy:
Sujin Jose, A.
Athijayamani, A.
Jani, S. P.
Stalany, Mago V.
Khan, Adam M.
Powiązania:
https://bibliotekanauki.pl/articles/2048760.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wood sawdust particles
coir pith particles
hybrid composites
mechanical properties
rule of mixture method
Opis:
A characteristic study on the phenol formaldehyde (PF) composite is carried out based on the micro level bio waste particles such as wood sawdust (WSD) and coir pith (CP). Composite is characterized by mechanical properties such as tensile, flexural and impact at different percentages of particles (0-50% by weight) to find out the optimum percentage of particle loading to get the maximum properties. The WSD/CP/PF hybrid composite is also prepared by two different methods i.e., one: one (1:1) ratio and rule of mixture. The first method (1:1) is used to find out the optimum level of hybrid particles loading to get the maximum properties. But, the second method is followed to find out the weight percentages of particles influencing the properties of resulting composite. The results show that the mechanical properties of WSD/PF are higher than CP/PF composite in the entire particle loading. The optimum particle loading to get the maximum properties is 40 wt.% in CP/PF composite, whereas for WSD/PF composite are at 30 wt.%. The hybrid composite (1:1) also gives the maximum properties at 30 wt.%. Moreover, the hybrid composite (20WSD/10CP) prepared by rule of mixture showed the highest mechanical properties compared to the other particle loading. It is identified that the WSD particles are most influencing the properties of PF composites than the CP particles. Fractographic study was performed using scanning electron microscope to examine the failure mechanism of the composite specimens.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 377-384
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
W pułapce kolonializmu Ukraińcy w Galicji Wschodniej — kolonizowani czy kolonizatorzy?
Autorzy:
k, Wiktoria K u d e l a-Ś w i ą t e
k, Adam Ś w i ą t e
Powiązania:
https://bibliotekanauki.pl/articles/702057.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Historyka studia metodologiczne; 2012, 42
0073-277X
Pojawia się w:
Historyka studia metodologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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