Search results for "Names"

Bearing fault detection based on time-frequency representations of vibration signals

2015

To prevent failures of a rolling bearing in the gearbox drive system, acceleration sensors are used to detect fault-related signals of the bearing. It is a big challenge to observe and identify signals caused by bearing defects in the time domain or the frequency spectrum by a conventional Fourier analysis. The time-frequency representation of the fault-related signals implemented by the windowed Fourier transform is studied in this work. It is shown that the fault characteristic frequencies can be clearly identified in the time-frequency spectrum if a fault occurs in the bearing of the gearbox at different speeds. Otherwise, the shaft frequency and its multiples are the main harmonics in t…

Polityczność feminatywów

2022

The article takes a diachronic look at feminatives in the Polish language from the sixteenth century to the present day. The authors recall the history of female forms in the language. Referring to pre-war journalism, discussions in the journal Poradnik Językowy [The Linguistic Guide] and the propaganda lexis of communist Poland, they prove that female forms are not foreign to the Polish language. They create a comprehensive list of reasons why feminatives have disappeared from Polish, taking account of both intra-linguistic and extra-linguistic factors. The authors refer to examples from contemporary media and public discourse to show gender asymmetry in the language and the mechanisms of …

Validation of a spectral light scattering method to differentiate large from small particles in intraocular lenses

2017

A psychophysical approach has been designed to measure straylight from intraocular lenses (IOLs) in vitro. This approach uses a clinical straylight meter (C-Quant) and an observer's eye as optical detector. Based on this, we introduced a method for study of straylight-wavelength dependency for IOLs. This dependency can be used to distinguish between 2 types of scattering particles (small and large) as defined by Mie theory. Validation was performed using a turbidity standard and scattering filters. Several IOLs were analyzed to identify potential scattering sources. Large particles were found to predominate in scattering from the studied lenses. This was confirmed by straylight-angular depe…

Estimation of the mechanical properties of the eye through the study of its vibrational modes.

2017

Measuring the eye's mechanical properties in vivo and with minimally invasive techniques can be the key for individualized solutions to a number of eye pathologies. The development of such techniques largely relies on a computational modelling of the eyeball and, it optimally requires the synergic interplay between experimentation and numerical simulation. In Astrophysics and Geophysics the remote measurement of structural properties of the systems of their realm is performed on the basis of (helio-)seismic techniques. As a biomechanical system, the eyeball possesses normal vibrational modes encompassing rich information about its structure and mechanical properties. However, the integral a…

Śląskie nazwy geograficzne motywowane nazwami kolorów

2021

The subject of the paper is Silesian geographical names motivated by colour terms. The analysis comprised Polish and German appellative-derived names of inhabited and uninhabited buildings as well as oronyms and hydronyms. The term colour appearing in the title is broadly understood as every element naming a colour, deriving from a colour term or evoking associations with a colour term. The analytical part contains a description of particular colour terms constituting the basis for proper names, with their meanings, connotations and prototypes. It is followed by a presentation of geographical names in which colour terms are elements of juxtapositions, simple compounds and closed compounds, …

Ìstorìâ Sìlezìï krìzʹ prizmu geografìčnih nazv

2014

Konotacje nazw barw w toponimii i hydronimii śląskiej (czarny, biały, zielony)

2021

Kolory należą do podstawowych środków orientacji człowieka w świecie. Niosą informacje o wartościach wyznawanych przez dane społeczeństwo, są wyrazem tożsamości jednostkowej i zbiorowej, wywołują różne skojarzenia i emocje, odzwierciedlają sposób postrzegania otaczającej rzeczywistości. Przedmiotem artykułu są nazwy geograficzne Śląska zawierające element kolorystyczny: czarny, biały i zielony – najbardziej charakterystyczne barwy Śląska. Badaniu zostały poddane zarówno nazwy genetycznie polskie, jak i niemieckie, gdyż historia Śląska i naturalna symbioza językowo-kulturowa pozwalają traktować je na równi. Badania nazw kolorów w obu językach nie wykazują też większych różnic w konotacjach i…

Ģeogrāfisko nosaukumu autoritatīvo ierakstu veidošana: teorija un prakse

2018

Pētījums tika izstrādāts ar mērķi izpētīt ģeogrāfisko nosaukumu autoritatīvo ierakstu veidošanas metodikas pielietošanu praksē, jo ģeogrāfiskie nosaukumi ir nozīmīgi piekļuves punkti informācijas meklēšanā. Pētījumā, izmantojot dokumentu analīzi, analizēta ģeogrāfisko nosaukumu autoritatīvo ierakstu veidošanas metodika un to veidošanu ietekmējošie kultūrvēsturiskie un valodnieciskie aspekti. Izmantojot salīdzinošo analīzi, salīdzināta LNB un ASV Kongresa bibliotēkas prakse šo autoritatīvo ierakstu veidošanā. Izmantojot intervijas, apzinātas to kvalitātes uzlabošanas iespējas. Pētījumā tika noskaidrota kultūrvēsturisko un valodniecisko aspektu ietekme uz autoritatīvo ierakstu veidošanu un ap…

An unbounded family of log Calabi–Yau pairs

2016

We give an explicit example of log Calabi-Yau pairs that are log canonical and have a linearly decreasing Euler characteristic. This is constructed in terms of a degree two covering of a sequence of blow ups of three dimensional projective bundles over the Segre-Hirzebruch surfaces ${\mathbb F}_n$ for every positive integer $n$ big enough.

The Forebrain of the Blind Cave Fish <i>Astyanax hubbsi </i>(Characidae)

1997

This paper presents a survey of the cell groups in the telencephalon of the teleost Astyanax hubbsi, based on series of transverse sections stained with the Nissl-, Kluver-Barrera and Bodian procedure