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The Point Nuisance Method as a Decision-Support System Based on Bayesian Inference Approach

Janusz Rusek
Archives of Mining Sciences | 2020 | vol. 65 | No 1 | 117-127 | DOI: 10.24425/ams.2020.132710
Keywords Naïve Bayes Resistance of Buildings mining area reliability Bayes inference framework surface deformations
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Abstract

The article attempts to transfer information from the Point Nuisance Method (PNM) used in Poland in the issue of protection of buildings in mining areas, to the system of inference based on Bayesian formalism. For this purpose, all possible combinations occurring in PNM were selected. The number of numerically generated patterns was 6,718,464 cases. Then, based on Python package Scikit-Learn, a classification model was created in the form of the Naïve Bayes Classifier (NBC). The effectiveness of three methods used to build this type of decision-support system was analysed, from which the Categorical Multinomial Naive Bayes (CMNB) approach was finally selected. With the created classifier, its properties were verified in terms of quality of classify and generalization. For this purpose a general approach was used, analysing the level of accuracy of the model in relation to training and teaching data, and detailed, based on the analysis of the confusion matrix. Additionally, the operation of the created classifier was simulated to determine the optimal Laplace smoothing parameter α. The article ends with conclusions from the carried out calculations, in which an attempt was made to answer the question concerning potential reasons for incorrect classification of the created CMNB model. The discussion ends with a reference to the planned research, in which, among other things, the use of more complex Bayesian belief networks (BBN) is planned.

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Authors and Affiliations

Janusz Rusek
ORCID: ORCID

Modeling Critical Loads of Airborne Acidity and Eutrophication of Polish Forest Ecosystems -The Sonox Model

Wojciech Mill Adrian Schlama
Archives of Environmental Protection | 2010 | vol. 36 | No 1 | 117-127
Keywords critical loads forest ecosystems acid deposition mathematical modeling
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Abstract

A mass balance model lo calculate critical loads of' airborne acidity and cutrophication to forest ecosystems has been computerized. The SONOX soliware developed at the Institute of Environmental Protection replicates the sequence of' events on the path from sulfur and nitrogen emission through their deposition and next overlaying it on critical loads values lo identify the extent and areas of critical loads cxcccdance. To support decision making a converse direction is offered to assess the necessary emission reductions lo meet assumed environmental goals by eliminating or suitably abating the critical loads cxcccdance. This software originally developed and applied to support the Polish contribution lo the negotiations of the Oslo and Gothenburg Protocols or the Convention on Long-Range Transboundary Air Pollution was thereafter used to assess the capacity of achieving the, interim environmental quality targets ofthe NEC Directive in Poland, to support the development of air protection programs lor administrative units exposed to transboundary lluxcs and other decision making purposes.
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Authors and Affiliations

Wojciech Mill
Adrian Schlama

Theory of Synthesis of Asymmetrical Delay Line with the Surface Acoustic Wave

Milan Šimko Miroslav Gutten Milan Chupáč Matej Kučera Adam Glowacz Eliasz Kantoch Hui Liu Frantisek Brumercik
Archives of Acoustics | 2019 | vol. 44 | No 1 | 117-127 | DOI: 10.24425/aoa.2019.126358
Keywords delay line diluted electrodes surface acoustic wave interdigital transducers resonators
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Abstract

The aim of this publication is to design a procedure for the synthesis of an IDT (interdigital transducer) with diluted electrodes. The paper deals with the surface acoustic waves (SAW) and the theory of synthesis of the asymmetrical delay line with the interdigital transducer with diluted electrodes. The authors developed a theory, design, and implementation of the proposed design. They also measured signals. The authors analysed acoustoelectronic components with SAW: PLF 13, PLR 40, delay line with PAV 44 PLO. The presented applications have a potential practical use.

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Authors and Affiliations

Milan Šimko
Miroslav Gutten
ORCID: ORCID
Milan Chupáč
Matej Kučera
Adam Glowacz
ORCID: ORCID
Eliasz Kantoch
Hui Liu
Frantisek Brumercik
ORCID: ORCID

Mucormycosis in head and neck area — the emerging health problem in COVID-19 pandemic. The perspective of a dental practitioner

Marcin Pasternak Rafał Olszanecki
Folia Medica Cracoviensia | 2021 | Vol. 61 | No 2 | 117-127 | DOI: 10.24425/fmc.2021.137228
Keywords mucormycosis rhino-orbito-cerebral mucormycosis dental care COVID-19
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Abstract

Mucormycosis is an invasive fungal disease caused by saprophytic molds and is characterized by a fulminant course and high mortality. Reported increase of disease cases and more frequent mucormy-cosis superinfections in COVID-19 patients are of a serious concern. Head and neck area is the most typical location of mucormycosis and often the first symptoms are eminent in oral cavity, therefore a dentist may be the first healthcare practitioner to recognize signs of this dangerous and potentially fatal disease. Urgent diagnosis and implementation of appropriate treatment are essential for the patient’s survival. The dentist’s participation in postoperative care is necessary and due to the destructive nature of radical surgical treatment, prosthetic rehabilitation is required to improve the patient’s function and quality of life. Furthermore the vigilance of dentists will also allow early recognition of frequent recur-rences of this insidious infection.
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Authors and Affiliations

Marcin Pasternak
1
Rafał Olszanecki
1
  1. Chair of Pharmacology, Jagiellonian University Medical College, Kraków, Poland

Technical Note. Effect of Liner Characteristics on the Acoustic Performance of Duct Systems

Chokri Othmani Taissir Hentati Mohamed Taktak Tamer Elnady Mohamed Haddar
Archives of Acoustics | 2015 | vol. 40 | No 1 | 117-127 | DOI: 10.1515/aoa-2015-0014
Keywords porous material perforated plate duct system scattering matrix acoustic attenuation
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Abstract

Porous materials are used in many vibro-acoustic applications. Different models describe their perfor- mance according to material’s intrinsic characteristics. In this paper, an evaluation of the effect of the porous and geometrical parameters of a liner on the acoustic power attenuation of an axisymmetric lined duct was performed using multimodal scattering matrix. The studied liner is composed by a porous ma- terial covered by a perforated plate. Empirical and phenomenal models are used to calculate the acoustic impedance of the studied liner. The later is used as an input to evaluate the duct attenuation. By varying the values of each parameter, its influence is observed, discussed and deduced
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Authors and Affiliations

Chokri Othmani
Taissir Hentati
Mohamed Taktak
Tamer Elnady
Mohamed Haddar

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