Autor: Wicher, Andrzej - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Some remarks on the epic dimension of The Lord of the Rings by J.R.R. Tolkien
Autorzy:: Wicher, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/2076659.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Tolkien
epic
narrative structure
quest
worldview
romance
archetype
ancient literature
Opis:: The aim of the present article is to assess the possibility of treating Tolkien’s novel as an epic, that is a narrative that may be thought of as belonging to the tradition of great Mediterranean and ancient epic narrative poems, especially those that are focused on the archetype of the heroic quest. The article is not so much concerned with comparing individual motifs in those poems with their counterparts in The Lord of the Rings, but rather with comparing and contrasting the basic and archetypal narrative structures, therefore the author of the present article has chosen, in particular, three ancient epics, i.e. Homer’s Odyssey, Vergil’s Aeneid, and Statius’s Thebaid, as they seem to stand for three basic models of fashioning the epic narrative. The author concludes that Tolkien’s work shares some features with all the three models, even though the affinities with Homer’s Odyssey and the type of epic it represents appear predominant. The article contains also a discussion of the thesis that The Lord of the Rings is a romance rather than an epic.
Źródło:: Kwartalnik Neofilologiczny; 2016, 3; 363-376
0023-5911
Pojawia się w:: Kwartalnik Neofilologiczny
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Objective and Subjective Assessment of the Sound Attenuation Efficiency Obtained by Custom Moulded Earplugs with Various Acoustic Filters – a Preliminary Study
Autorzy:: Gołębiewski, Roman
Wicher, Andrzej
Kaczmarek-Klinowska, Milena
Mrugalska-Handke, Karina
Powiązania:: https://bibliotekanauki.pl/articles/2141651.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hearing protector
earplug
acoustic filter
hearing loss
artificial head
Opis:: Background: Hearing loss caused by excessive exposure to noise is one of the most common health risks for employees. One solution for noise reduction is the use of hearing protectors, which is a very effective method for protecting hearing from the workplace noise. In order to obtain better attenuation efficiency, custom moulded earplugs can be equipped with a suitable acoustic filter. The effectiveness of the hearing protectors’ attenuation is based on real measurement of hearing thresholds for normal hearing people with and without hearing protectors. However, this is a time consuming process, and the obtained values are characterised by quite large inter-individual variability. The optimal solution is to measure the attenuation characteristics based on the objective method (without the presence of the subject), the results of which will be in accordance with the results of subjective tests. Therefore, the main purpose of the research in this work was to measure the attenuation characteristics of the self-designed custom moulded earplugs with and without acoustic filters through the use of subjective and objective methods, and to compare the results in terms of the research methods. Methods: Measurements of the acoustic attenuation obtained by custom moulded earplugs with designed F1, F2, and F3 acoustic filters (internal diameters dF1 = 1:25 mm, dF2 = 0:85 mm, and dF3 = 0:45 mm), as well as full insert earplugs (without any acoustic filters) were carried out using two methods: objective and subjective. The objective measurements were carried out in an anechoic chamber. The artificial head (High-frequency Head and Torso Simulator Brüel & Kjær Type 5128) was located at a distance of 3 m, directly opposite the loudspeaker. The test signal in the measurements was pink noise – in the frequency range up to 12.5 kHz and the level 85, 90, and 95 dB. The hearing protectors with and without acoustic filters were mounted in the Head and Torso Simulator which was connected with Pulse System Brüel & Kjær. Five normal hearing subjects participated in the subjective measurements. A pink noise signal was used for one-third octave bands: 125, 250, 500, 1000, 2000, 4000, and 8000 Hz. The attenuation value was defined as the difference (in dB) between the hearing threshold of the test signal with a hearing protector and the hearing threshold determined without a hearing protector. Results: The results of the objective method proved that in addition to the significant impact of frequency on the attenuation values, the type of filter used in custom moulded earplugs also had a significant effect. In addition, the results of the objective method showed that in the whole frequency range the highest attenuation values are shown by the full earplugs, achieving slightly above 45 dB for frequency of 8 kHz. The attenuation values obtained from subjective measurements also confirmed that both the frequency and type of filter significantly affect the attenuation values of the tested hearing protectors. Conclusions: The results of this study did not confirm the hypothesis that the measurement method had no significant effect on the attenuation characteristics of self-designed custom moulded earplugs with different types of acoustic filters. The largest differences in attenuation values between the type of measurement methods occur for the low frequency band (250 Hz) and for higher frequencies (4000 Hz mainly). The change of the internal diameter of the F1 filter from 1.25 mm to 0.85 mm (F2 filter) did not significantly affect the attenuation characteristics.
Źródło:: Archives of Acoustics; 2022, 47, 2; 201-212
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Wicher, Andrzej" wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język