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Abstract

The aim of the study study was to model, with the use of a neural network algorithm, the significance of a variety of factors influencing the development of hearing loss among industry workers. The workers were categorized into three groups, according to the A-weighted equivalent sound pressure level of noise exposure: Group 1 (LAeq < 70 dB), Group 2 (LAeq 70–80 dB), and Group 3 (LAeq > 85 dB). The results obtained for Group 1 indicate that the hearing thresholds at the frequencies of 8 kHz and 1 kHz had the maximum effect on the development of hearing loss. In Group 2, the factors with maximum weight were the hearing threshold at 4 kHz and the worker’s age. In Group 3, maximum weight was found for the factors of hearing threshold at a frequency of 4 kHz and duration of work experience. The article also reports the results of hearing loss modeling on combined data from the three groups. The study shows that neural data mining classification algorithms can be an effective tool for the identification of hearing hazards and greatly help in designing and conducting hearing conservation programs in the industry.

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Authors and Affiliations

Sajad Zare
Mohammad Reza Ghotbiravandi
Hossein Elahishirvan
Mostafa Ghazizadeh Ahsaeed
Mina Rostami
Reza Esmaeili
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Abstract

The paper investigates and analysis sacred eye-catchers in Transylvanian gardens and parks. Interpretation of visual connections defined by landscape features with a sacred meaning (crypts, chapels, crosses, thumbs etc.) are the present study’s main purpose. The analysis of the visual connections on a landscape scale comprises the examination of outstanding visual elements (eye-catchers) that are decisive in the case of historic landscapes, gardens and parks, and among these in the case of castle gardens, manor houses and demesnes as well. In these cases the relationship between a manor garden and the surrounding landscape is the result of a conscious shaping of the environment. The sights which determine forcefully the historicity of the landscape are the results of enduring cultural influences over time. Although only just a very few of these former landscape connections persist, their preservation represents a public interest. The investigated eye-catchers – as outstanding landscape elements – determine in a decisive way the structure of garden landscapes in Transylvania. The sentimental, then romantic trends prevailing in the 19th century in many cases expected that outstanding buildings also become important parts of the gardens. The study proves the landscape compositional role and importance of the sacred features situated within the manor gardens, or outside the gardens, in the surrounding landscape, representing a visual entity with the castle garden ensemble.
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Authors and Affiliations

Albert Fekete
ORCID: ORCID
Martin Van Den Toorn

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