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Abstract

As a consequence of recent implementations of EU Directives related to noise protection more and more students of various AGH-UST programs are introduced to the basics of acoustic measurements. Students at various levels of theoretical background in the field of acoustic measurements are offered practical training in measurements using digital sound analyzers. The situation would be optimal if each student could have a device at his/her own disposal. Unfortunately, such a situation is not possible at the moment because of various reasons.

With the above problem in mind, a dedicated software package has been developed, implemented in the LabVIEW environment, which allows detailed studies of problems related to the acoustic signal measurement using sound level meters, as well as tasks in spectral analysis (1/1 and 1/3 band filters) and narrow-band (FFT) analysis. With such organization during the introductory laboratory classes each student is offered a direct individual contact with a virtual device that is properly pre-programmed for realization of a well-constructed learning process. It definitely facilitates understanding of the essence of acoustic signal measurements and provides a good basis for further laboratory work carried out as a team-activity.

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Authors and Affiliations

Robert Barański
Grażyna Wszołek
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Abstract

The rapidly developing measurement techniques and emerging new physical methods are frequently used in otolaryngological diagnostics. A wide range of applied diagnostic methods constituted the basis for the review study aimed at presenting selected modern diagnostic methods and achieved diagnostic results to a wider group of users. In this part, the methods based on measuring the respiratory parameters of patients were analysed. Respiration is the most important and necessary action to support life and its effective duration. It is an actual gas exchange in the respiratory system consisting of removing CO2 and supplying O2. Gas exchange occurs in the alveoli, and an efficient respiratory tract allows for effective ventilation. The disruption in the work of the respiratory system leads to measurable disturbances in blood saturation and, consequently, hypoxia. Frequent, even short-term, recurrent hypoxia in any part of the body leads to multiple complications. This process is largely related to its duration and the processes that accompany it. The causes of hypoxia resulting from impaired patency of the respiratory tract and/or the absence of neuronal respiratory drive can be divided into the following groups depending on the cause: peripheral, central and/or of mixed origin. Causes of the peripheral form of these disorders are largely due to the impaired patency of the upper and/or lower respiratory tract. Therefore, early diagnosis and location of these disorders can be considered reversible and not a cause of complications. Slow, gradually increasing obstruction of the upper respiratory tract (URT) is not noticeable and becomes a slow killer. Hypoxic individuals in a large percentage of cases have a shorter life expectancy and, above all, deal with the consequences of hypoxia much sooner.
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Bibliography

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Authors and Affiliations

Andrzej Kukwa
1
Andrzej Zając
2
Robert Barański
3
Szymon Nitkiewicz
4 5
Wojciech Kukwa
6
Edyta Zomkowska
7
Adam Rybak
8

  1. University of Warmia and Mazury, Olsztyn, Department and Clinic of Otorhinolaryngology, Head and Neck Diseases, Collegium Medicum, Warszawska St. 30, 10-082 Olsztyn, Poland
  2. Military University of Technology, Warsaw, Institute of Optoelectronics, Kaliskiego St., 2, 00-908, Warsaw, Poland
  3. AGH University of Science and Technology in Kraków, Department of Mechanics and Vibroacoustics, Mickiewicza St. 30, 30-059 Kraków, Poland
  4. University of Warmia and Mazury in Olsztyn, Department of Mechatronics, Faculty of Technical Science, Oczapowskiego St. 2, Olsztyn, Poland
  5. University of Warmia and Mazury in Olsztyn, Department of Neurosurgery, School of Medicine, Oczapowskiego St. 2, Olsztyn, Poland
  6. Medical University of Warsaw, Warsaw, Faculty of Dental Medicine, Zwirki i Wigury St. 61, 02-091 Warsaw, Poland
  7. University Hospital in Olsztyn, Clinic of Otorhinolaryngology, Head and Neck Surgery, Warszawska St. 30,10-082 Olsztyn, Poland
  8. LABSOFT Sp. z o. o., Puławska St. 469, 02-844 Warsaw, Poland

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