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Archives of Acoustics
EN In the last years the number of new forms of workplaces, such as call centers, increases. It is defined as a workstation where the basic tasks of a worker are carried out with the use of a phone and a computer. According to statistics, about 1.3–4% of workers are employed in call centers in the Euro[...]
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Archives of Acoustics
EN For the use of acoustic assessment of machinery, a global index of acoustic quality has been developed. Acoustic quality index is considered as a product of the following partial indices: sound power index, index of distance between the workstation and the machine, radiation directivity index, impul[...]
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Metrology and Measurement Systems
EN An innovative system designed for the continuous monitoring of acoustic climate of urban areas was presented in the paper. The assessment of environmental threats is performed using online data, acquired through a grid of engineered monitoring stations collecting comprehensive information about the [...]
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Archives of Acoustics
EN The subject presented in this paper refers to measurements and assessment of the corrected sound pressure level values (noise) occurring around a medium-power transformer. The paper presents the values of noise accompanying the operation of the power object before and after its modernization, which [...]
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Geodeta : magazyn geoinformacyjny
2007 nr 12 8-12
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Bezpieczeństwo Pracy : nauka i praktyka
2012 nr 1 12-15
PL Sygnalizator dźwiękowy montowany na przejściach dla pieszych ma ułatwiać osobom z upośledzonym narządem wzroku bezpieczne korzystanie z przejść. Emitowany sygnał dźwiękowy musi być słyszalny. Gdy zmniejsza się poziom hałasu komunikacyjnego, sygnalizator może stać się dla okolicznych mieszkańców źród[...]
EN Audible pedestrian signalling device installed at pedestrian crossings is supposed to advise blind people whether it is safe to safely cross the street. The signal it emits should be clearly audible. Decrease in level of the traffic noise may render audible pedestrian signal too loud to inhabitants [...]
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Bezpieczeństwo Pracy : nauka i praktyka
2012 nr 2 16-19
PL Ocenę narażenia na hałas nauczycieli w szkołach podstawowych przeprowadzono na podstawie badań ankietowych, pomiarów hałasu na stanowiskach pracy nauczycieli oraz analizy danych statystycznych o zagrożeniach i chorobach zawodowych w sektorze edukacji. Badania wykazały, że hałas stanowi główny czynni[...]
EN Assessment of teachers' exposure to noise in primary schools was carried out on the basis of questionnaire studies, noise measurements at teachers' workplaces and an analysis of statistical data on hazards and occupational diseases in the education sector. The studies showed that noise is the main f[...]
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Bezpieczeństwo Pracy : nauka i praktyka
2012 nr 3 22-25
PL Hałas impulsowy jest zagrożeniem dla słuchu występującym na wielu stanowiskach pracy, najczęściej związanych z obróbką metali oraz w obecności wystrzałów bądź eksplozji. Należy mieć na uwadze, że w przypadku silnych impulsów istnieje możliwość spowodowania trwałego ubytku słuchu nawet po jednej eksp[...]
EN Impulse noise encountered at workplaces, usually related to either metal processing or gunshots and explosions, is a threat to hearing. It should be noted that strong impulses can induce a hearing loss even if caused by a single exposure. The article discusses properties of impulse noise generated b[...]
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Journal of Theoretical and Applied Mechanics
2008 Vol. 46 nr 4 799-811
PL W artykule przedstawiono nową metodę oceny łącznej drgań (miejscowych i ogólnych) i hałasu działających równocześnie na pracowników. Opracowano ją na podstawie wyników badań przeprowadzonych w wybranych środkach transportu drogowego. Badania wykazały, że niezależna ocena działających poszczególnych [...]
EN A new method of combined assessment of the influence of vibrations (hand-arm and whole-body) and noise hazards simultaneously acting on employees is presented in the paper. The method has been developed on the basis of tests performed in selected means of road transportation. The investigations have[...]
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Archives of Acoustics
EN In this paper a new method of assessing noise-induced harmful effects on the human hearing system is described. The method proposed determines the cumulative impact on hearing system produced by the excessive noise taking into consideration properties of the human hearing system. Based on the predic[...]
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Hydroacoustics
2008 Vol. 11 87-96
EN Extensive measurements "in situ" both of the sound intensity and the vibration were made of M25, a small ship (length 8 m , beam 4 m, displacement 2 tons) powered by 20 kW a direct-drive low-speed diesel engine. A small ship creates a series of harmonics which amplitudes and frequencies are connecte[...]
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Hydroacoustics
2009 Vol. 12 209-216
EN Experimental data on the ambient noise generated by large-amplitude internal waves in the ocean are considered. The data are obtained by us during oceanic expeditions in the Indian Ocean and South China Sea. In both cases the generation of noise was caused by solitary internal waves with 50-m amplit[...]
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Archives of Acoustics
2013 Vol. 38, No. 2 235--242
EN The paper presents functionality and operation results of a system for creating dynamic maps of acoustic noise employing the PL-Grid infrastructure extended with a distributed sensor network. The work presented provides a demonstration of the services being prepared within the PLGrid Plus project fo[...]
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International Journal of Occupational Safety and Ergonomics
EN Context. Worship in Protestant churches in Brazil is very noisy. Thus, this practice may pose a hearing risk. Aims. To evaluate the priests’ and worshippersʼ noise exposure during worship. Settings and design. The analysis was carried out in 5 churches located in the city of São José dos Campos, Bra[...]
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International Journal of Occupational Safety and Ergonomics
2011 Vol. 17, No. 3 233--240
EN This paper describes the results of a study aimed at developing and validating a prediction model to assess the annoyance conditions at the operator station of compact loaders by using noise signal objective parameters only. For this purpose, binaural measurements were carried out on 41 compact load[...]
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International Journal of Occupational Safety and Ergonomics
2011 Vol. 17, No. 3 277--286
EN A global index of machines was developed to assess noise emitted by machines and to predict noise levels at workstations. The global index is a function of several partial indices: sound power index, index of distance between the workstation and the machine, radiation directivity index, impulse and [...]
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International Journal of Occupational Safety and Ergonomics
2009 Vol. 15, No. 2 155--162
EN Directive 2003/10/EC sets the requirement for evaluating the effect of noise on accident risk. Accident risk is elevated for workers with a hearing handicap because of their reduced speech intelligibility and reduced capability to perceive the direction of incoming sound. An audiogram is not a good [...]
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Logistyka
2009 nr 6 CD-CD
PL Koleje dużych prędkości (KDP) stosowane w wielu krajach UE, Japonii, USA, Chiny itd. stanowią znaczący czynnik rozwoju i przemian cywilizacyjnych i gospodarczych, jednocześnie będąc dużym zagrożeniem dla środowiska naturalnego. W pracy skupiono się na podstawowych zagadnieniach dotyczących emisji en[...]
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Optica Applicata
2011 Vol. 41, nr 4 953--959
EN Gamma-radiation induced random walk error (RWE) of interferometer fiber optic gyroscope (IFOG) is presented in this paper. Testing was performed at the components and system level with an expanded version of a closed-loop operational fiber optic gyroscope. Primary concerns include attenuation to tot[...]
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Zeszyty Naukowe / Akademia Morska w Szczecinie
2012 nr 31 (103) 104-107
EN The paper presents the problems of negative influence of high level of noise on the workers and the possibilities of application of portable acoustic screens for the protection of workers which are around of machines. In the paper the results of experiments with application of portable acoustic scre[...]
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