Autor: Murawski, P. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An Infrared Sensor for Monitoring Meibomian Gland Dysfunction
Autorzy:: Murawski, K.
Różycki, R.
Murawski, P.
Matyja, A.
Rękas, M.
Powiązania:: https://bibliotekanauki.pl/articles/1399390.pdf
Data publikacji:: 2013-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.30.Sy
07.07.Df
42.30.Va
Opis:: Meibomian gland dysfunction is one of the most common eye disorders observed in clinical practice. It applies to almost 50% of the population, especially people using contact lenses. It is believed that meibomian gland dysfunction is the most common cause of abnormal stability and integrity of the tear film. Despite this, there is no commercially available equipment for the diagnosis. The article proposes the construction of an optical sensor and a computer system for the rapid, non-invasive diagnosis of meibomian gland dysfunction. The designed hardware and software as well as preliminary results of clinical research are also described.
Źródło:: Acta Physica Polonica A; 2013, 124, 3; 517-520
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Surface Waves along the Martian Ionopause
Autorzy:: Chmielewski, P.
Murawski, K.
Kumar, N.
Powiązania:: https://bibliotekanauki.pl/articles/1400415.pdf
Data publikacji:: 2013-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 94.20.wh
96.30.Gc
Opis:: We study the behaviour of surface waves propagating along the ionopause of the planet Mars and derive the onset criteria for unstable Kelvin-Helmholtz modes and negative energy waves at the Martian ionopause. Growth rate of unstable Kelvin-Helmholtz mode decreases with wavelength. The backward propagating waves became negative energy waves for the ionosheath velocity higher than critical velocity. It is found that short wavelength surface waves propagating along the Martian ionopause are less dispersive than long waves.
Źródło:: Acta Physica Polonica A; 2013, 123, 1; 156-161
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Impulsively Generated Linear and Non-Linear Alfvén Waves in the Coronal Funnels
Autorzy:: Chmielewski, P.
Srivastava, A.
Murawski, K.
Musielak, Z.
Powiązania:: https://bibliotekanauki.pl/articles/1195963.pdf
Data publikacji:: 2014-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 96.60.P-
96.60.pc
Opis:: We present simulation results of the impulsively generated linear and non-linear Alfvén waves in the weakly curved coronal magnetic flux-tubes (coronal funnels) and discuss their implications for the coronal heating and solar wind acceleration. We solve numerically the time-dependent magnetohydrodynamic equations to find the temporal signatures of the small and large-amplitude Alfvén waves in the model atmosphere of open and expanding magnetic field configuration with a realistic temperature distribution. We compute the maximum transversal velocity of both linear and non-linear Alfvén waves at different heights of the model atmosphere, and study their response in the solar corona during the time of their propagation. We infer that the pulse-driven non-linear Alfvén waves may carry sufficient wave energy fluxes to heat the coronal funnels and also to power the solar wind that originates in these funnels. Our study of linear Alfvén waves shows that they can contribute only to the plasma dynamics and heating of the funnel-like magnetic flux-tubes associated with the polar coronal holes.
Źródło:: Acta Physica Polonica A; 2014, 125, 1; 158-164
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Research and Parameter Optimization of the Infrared Sensor for Eye Track
Autorzy:: Życzkowski, M.
Szustakowski, M.
Różanowski, K.
Murawski, K.
Karol, M.
Markowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/1418088.pdf
Data publikacji:: 2012-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.30.Wb
87.57.-s
42.79.Qx
Opis:: This paper presents infrared sensor for eye tracking system for ophthalmology and truck drivers. System is based on camera and near infrared diode illuminator. We present test results of sensor detection at different operating parameters. Tests were chosen so as to see how the sensor behaves in difficult conditions, additionally tested whether long-term operation of the sensor has an impact on the examined person.
Źródło:: Acta Physica Polonica A; 2012, 122, 5; 942-945
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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