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Wyświetlanie 1-32 z 32
Tytuł:
Annoyance Related to Wind Turbine Noise
Autorzy:
Pawlaczyk-Łuszczyńska, M.
Dudarewicz, A.
Zaborowski, K.
Zamojska-Daniszewska, M.
Waszkowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/178067.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wind turbines
noise
annoyance
Opis:
A questionnaire inquiry on response to wind turbine noise was carried out on 361 subjects living in the vicinity of 8 wind farms. Current mental health status of respondents was assessed using Goldberg General Health Questionnaire GHQ-12. For areas where respondents lived, A-weighted sound pressure levels (SPLs) were calculated as the sum of the contributions from the wind power plants in the specific area. Generally, 33.0% of respondents were annoyed outdoors by wind turbine noise at the calculated A-weighted SPL of 31–50 dB, while indoors the noise was annoying to 21.3% of them. The propor- tion of subjects evaluating the noise produced by operative wind turbines as annoying decreased with increasing the distance from the nearest wind turbine (27.6% at the distance of 400–800 m vs 14.3% at the distance above 800 m, p < 0.016). On the other hand, the higher was the noise level, the greater was the percentage of annoyed respondents (14.0% at SPL up to 40 dB vs 28.1% at SPL of 40–45 dB, p < 0.016). Besides noise and distance categories, subjective factors, such as general attitude to wind turbines, sensitivity to landscape littering and current mental health status, were found to have significant impact on the perceived annoyance. About 50% of variance in annoyance rating might be explained by the aforesaid subjective factors.
Źródło:
Archives of Acoustics; 2014, 39, 1; 89-102
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of sound quality features on environmental noise effects - a case study applied to road traffic noise
Autorzy:
Paszkowski, W.
Kotus, J.
Poremski, T.
Kostek, B.
Powiązania:
https://bibliotekanauki.pl/articles/221346.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
sound quality
annoyance
traffic noise
Opis:
The paper shows a study on the relationship between noise measures and sound quality (SQ) features that are related to annoyance caused by the traffic noise. First, a methodology to perform analyses related to the traffic noise annoyance is described including references to parameters of the assessment of road noise sources. Next, the measurement setup, location and results are presented along with the derived sound quality features. Then, statistical analyses are performed to compare the measurement results and sound quality features. The included conclusions are focused on showing that the obtained loudness values, regardless of the used system, are similar in a statistical sense. Contrarily, sharpness, roughness and fluctuation strength values differ for the tools employed.
Źródło:
Metrology and Measurement Systems; 2018, 25, 3; 517-531
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and Validation of a Numerical Prediction Model to Estimate the Annoyance Condition at the Operation Station of Compact Loaders
Autorzy:
Carletti, E.
Pedrielli, F.
Casazza, C.
Powiązania:
https://bibliotekanauki.pl/articles/90353.pdf
Data publikacji:
2011
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
noise
annoyance
sound quality
numerical models
Opis:
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 loaders, both in stationary and real working conditions. The 62 binaural noise recordings were objectively analysed in terms of acoustic and psychoacoustic parameters and then divided into 9 groups and used in specific jury tests to obtain the subjective annoyance scores. Finally, multiple regression technique was applied to the first 6 groups of noise stimuli to develop the model while the remaining groups were used to validate it.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2011, 17, 3; 233-240
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proposed Methodology for the Annoyance Penalty of Amplitude Modulated Wind Turbine Noise
Autorzy:
Makarewicz, Rufin
Powiązania:
https://bibliotekanauki.pl/articles/2141682.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
annoyance
wind turbine noise
amplitude modulation.
Opis:
Amplitude modulation increases the annoyance caused by wind turbine noise. One gets the improved annoyance when a penalty is added to the measured or calculated time-average sound level. The amplitude modulated wind turbine noise consists of pulses. Each of them could be characterized by the short time-average sound level and the modulation depth. The latter determines the pulse penalty. This paper shows how to calculate the improved annoyance of amplitude modulated wind turbine noise, when the short time-average sound level and the penalty for each pulse are known. A special case of identical pulses is discussed. The proposed methodology needs to be tested by research.
Źródło:
Archives of Acoustics; 2022, 47, 1; 125-128
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of Annoyance Caused by Low-Frequency Noise During Mental Work
Autorzy:
Kaczmarska, A.
Łuczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/89879.pdf
Data publikacji:
2007
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
low-frequency noise
annoyance
working environments
Opis:
This article presents the results of an analysis of annoyance caused by low-frequency noise (including infrasonic noise) that occurs at work stations located in offices. The tests covered measurements of acoustic parameters specific for this type of noise and a survey conducted in the working environment and in laboratory conditions at a model of a work station.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2007, 13, 2; 117-125
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of annoyance from the wind turbine noise: A pilot study
Autorzy:
Pawlaczyk-Łuszczyńska, Małgorzata
Dudarewicz, Adam
Zaborowski, Kamil
Zamojska-Daniszewska, Małgorzata
Waszkowska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2178846.pdf
Data publikacji:
2014-06-21
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
wind turbines
noise
health effects
annoyance
Opis:
Objectives: The overall aim of this study was to evaluate the perception of and annoyance due to the noise from wind turbines in populated areas of Poland. Material and Methods: The study group comprised 156 subjects. All subjects were asked to fill in a questionnaire developed to enable evaluation of their living conditions, including prevalence of annoyance due to the noise from wind turbines and the self-assessment of physical health and well-being. In addition, current mental health status of the respondents was assessed using Goldberg General Health Questionnaire GHQ-12. For areas where the respondents lived, A-weighted sound pressure levels (SPLs) were calculated as the sum of the contributions from the wind power plants in the specific area. Results: It has been shown that the wind turbine noise at the calculated A-weighted SPL of 30-48 dB was noticed outdoors by 60.3% of the respondents. This noise was perceived as annoying outdoors by 33.3% of the respondents, while indoors by 20.5% of them. The odds ratio of being annoyed outdoors by the wind turbine noise increased along with increasing SPLs (OR = 2.1; 95% CI: 1.22-3.62). The subjects' attitude to wind turbines in general and sensitivity to landscape littering was found to have significant impact on the perceived annoyance. About 63% of variance in outdoors annoyance assessment might be explained by the noise level, general attitude to wind turbines and sensitivity to landscape littering. Conclusions: Before firm conclusions can be drawn further studies are needed, including a larger number of respondents with different living environments (i.e., dissimilar terrain, different urbanization and road traffic intensity).
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2014, 27, 3; 364-388
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Annoyance of Time-Varying Road-Traffic Noise
Autorzy:
Kaczmarek, T.
Preis, A.
Powiązania:
https://bibliotekanauki.pl/articles/177938.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
noise annoyance
ICBEN scale
time varying noise
Opis:
The aim of the study was to investigate how the time structure of a road-traffic affects the noise annoyance judgment. In a psychoacoustic experiment, the listeners judged noise annoyance of four road-traffic noise scenarios with identical numbers of vehicles and LAeq;T value but different time structure of a road traffic. The traffic structure varied from even to highly clustered across different scenarios. The scenarios were created in the laboratory from a large set of a single vehicle passby recordings. The scenarios were additionally filtered with filters corresponding to a typical window transfer function to simulate the situation inside the building. The experimental results showed that there is a significant difference in annoyance judgment for different traffic structures with the same LAeq;T value. The highest annoyance ratings were obtained for even traffic distribution and the most clustered distribution resulted in the lowest annoyance rating. These results correlated well with the averaged loudness, whereas the percentile loudness (N5) and level (L5) predict the opposite results.
Źródło:
Archives of Acoustics; 2010, 35, 3; 383-393
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Case Study of the Environmental Noise and its Perception in the City of Cluj-Napoca, Romania
Autorzy:
Popescu, Diana Ioana
Powiązania:
https://bibliotekanauki.pl/articles/1953542.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
environmental noise
noise perception
sociological survey
annoyance
Opis:
The noise perceiving issue is very subjective and depends on several factors, such as: the living environment in which each person has grown and developed, the education they have received, the culture in which their life principles have formed and, last but not least, the social and financial status. Therefore, in order to establish effective actions in multiple directions when it comes to any urban noise analysis, it is very important to know the perception and the subjective reactions of the individuals involved. The paper respects this idea, presenting the results of a sociological study on urban noise, applied in the city of Cluj-Napoca, Romania. The intention was to capture the reactions of the permanent residents of the city, but also of the people in transit, as well as to analyse the changes that occurred as result of the implementation of the Environmental Noise Directive (European Commission). The study shows that 75.2% of the respondents consider that the noise in the city has increased in the last ten years and 58% of tchem have rated the noise as level 4 or 5 on a five point scale. Information related to noise maps and actions taken to reduce community noise has no sufficient dissemination. There is also a medium to low reaction of the population in correlation to the declared noise annoyance.
Źródło:
Archives of Acoustics; 2020, 45, 4; 625-631
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urban Noise Annoyance Between 2001 and 2013 : Study in a Romanian City
Autorzy:
Popescu, D. I.
Moholea, I. F.
Morariu-Gligor, R. M.
Powiązania:
https://bibliotekanauki.pl/articles/176299.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
noise annoyance
urban noise
socio-acoustic survey
Opis:
The paper presents results of three socio-acoustic surveys conducted in an interval of twelve years, between 2001 and 2013, in a large Romanian city, Cluj-Napoca. The purpose of the surveys was to assess the awareness of residents on urban noise and the extent to which the noise environment affects their everyday life, behavior and health. The surveys were conducted in 2001, 2009 and 2013. The questionnaire used in the first survey had 16 questions and it was verified prior to study through a pilot survey, being corrected and improved. For the second and the third study, the questionnaire was enriched with eight more questions, regarding essentially the description of the residential area, criteria for its selection and also awareness about the noise map of the city. The analysis of responses defines the main characteristics of the local pattern of annoyance and reaction of the urban population to the environmental noise.
Źródło:
Archives of Acoustics; 2013, 38, 2; 205-210
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterizing Subjective Noisiness in Hospital Lobbies
Autorzy:
Chen, C.-Y.
Powiązania:
https://bibliotekanauki.pl/articles/177865.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
noisiness
hospital
annoyance
loudness
autocorrelation function
reverberation time
Opis:
The present study was conducted in the lobbies of 16 Taiwanese urban hospitals to establish what contributes to the degree of noisiness experienced by patients and those accompanying them. Noise level measurements were then conducted by 15 min equivalent sound pressure levels (LAeq, 15m, dB) during daytime hours. The average LAeq itself was found to be poorly related to perceived noisiness. Levels variations were better correlated, more continual noise may actually be perceived as noisier. According to the findings of a multiple linear stepwise regression model (r = 0.91, R2 = 0.83), the 3 independent variables shown to have the largest effects on perceived noisiness were 1) 1/(L5−L95), 2) effective duration of the normalized autocorrelation function (_e, h), of all LAeq, 15m over 9–17, and 3) percentile loudness, N5, 15m. These results resemble previous studies that had assumed that a larger fluctuation of noise level corresponds to less annoyance experienced for mixed traffic noise studied in a laboratory situation. As an advanced approach, for hospital noise that consisted of 12 audible noise events, subjective noisiness were evaluated by the noise time structure analyzed by autocorrelation with loudness and levels variation.
Źródło:
Archives of Acoustics; 2015, 40, 2; 235-246
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Road, Tram and Aircraft Traffic Noise Annoyance Related to the Number of Noise Events and the Equivalent Sound Level
Autorzy:
Felcyn, Jan
Ptak, Patrycja
Powiązania:
https://bibliotekanauki.pl/articles/31339951.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
noise annoyance
noise event
transportation noise
sound level
Opis:
Noise mapping is based on long-term noise indicators, such as LN or LDEN. On the other hand, transportation intensity changes during a day (road traffic peak hours) or a year (more flights during holidays) and this variability is not reflected in single sound level values. We wanted to find out whether not only sound level but also the number of noise events is the factor influencing noise annoyance assessment. Ambisonic recordings of real traffic in a city were used. Road, tramway, and aircraft traffic were investigated and two factors were manipulated: the equivalent sound level value and the number of noise events. All stimuli were presented in an anechoic chamber. The results showed that sound level is always a statistically significant parameter while the number of events has an impact only for tramways and airplanes. Moreover, the difference is observed only between one or more subgroups, no matter what the sound level value was. For road traffic this relation was not found to be statistically significant. It was also shown that the existence of tramway bonus or airplane malus is linked with the number of noise events.
Źródło:
Archives of Acoustics; 2022, 47, 4; 457-467
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring the Reaction and Response of People to Urban Noise
Autorzy:
Popescu, D. I.
Moholea, I. F.
Powiązania:
https://bibliotekanauki.pl/articles/178048.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
urban noise
noise pollution
noise annoyance
social survey
Opis:
An important aspect in assessing noise in urban agglomerations is the subjective one, which takes into account the sensitivity and specific reactions of residents to the noise in their living environment. This paper presents results of a sociological study initiated to determine the population awareness, regarding the urban acoustic environment and estimation of effects and disturbance. The survey was conducted in a Romanian city, to complement the information provided by the strategic noise map of the area. This approach allows the estimation of specific local patterns of reaction and response to urban noise of the exposed population and provides the information, needed to develop action plans and to set proper solutions for urban area planning.
Źródło:
Archives of Acoustics; 2010, 35, 2; 237-244
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Experimental Study of Acoustic Comfort in Open Space Banks Based on Speech Intelligibility and Noise Annoyance Measures
Autorzy:
Golmohammadi, R.
Aliabadi, M.
Nezami, T.
Powiązania:
https://bibliotekanauki.pl/articles/176406.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
acoustic comfort
open-space banks
speech intelligibility
noise annoyance
Opis:
Tasks requiring intensive concentration are more vulnerable to noise than routine tasks. Due to the high mental workload of bank employees, this study aimed to evaluate acoustic comfort in open-space banks based on speech intelligibility and noise annoyance metrics. Acoustic metrics including preferred noise criterion (PNC), speech transmission index (STI), and signal to noise ratio (SNR) were measured in seventeen banks (located in Hamadan, a western province of Iran). For subjective noise annoyance assessments, 100-point noise annoyance scales were completed by bank employees during activities. Based on STI (0.56±0.09) and SNR (20.5±8.2 dB) values, it was found that speech intelligibilities in the workstations of banks were higher than the satisfactory level. However, PNC values in bank spaces were 48.2±5.5 dB, which is higher than the recommended limit value for public spaces. In this regard, 95% of the employees are annoyed by background noise levels. The results show irrelevant speech is the main source of subjective noise annoyance among employees. Loss of concentration is the main consequence of background noise levels for employees. The results confirmed that acoustic properties of bank spaces provide enough speech intelligibility, while staff’s noise annoyance is not acceptable. It can be concluded that due to proximity of workstations in open-space banks, access to very short distraction distance is necessary. Therefore, increasing speech privacy can be prioritised to speech intelligibility. It is recommended that current desk screens are redesigned in order to reduce irrelevant speech between nearby workstations. Staff’s training about acoustic comfort can also manage irrelevant speech characteristics during work time.
Źródło:
Archives of Acoustics; 2017, 42, 2; 333-347
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Teachers Exposure to Noise in Selected Primary Schools
Autorzy:
Augustyńska, D.
Kaczmarska, A.
Mikulski, W.
Radosz, J.
Powiązania:
https://bibliotekanauki.pl/articles/177972.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
primary school
noise
annoyance
harmfulness
questionnaire study
survey
acoustical measurements
Opis:
The assessment of teachers’ exposure to noise in primary schools was carried out on the basis of: questionnaire studies (covering 187 teachers in 3 schools), noise measurements at the teachers’ workplaces, measurements of the school rooms acoustic properties (reverberation time and speech transmission index STI in 72 classrooms), analysis of statistical data regarding hazards and occupational diseases in the education sector. The studies have shown that noise is the main factor of annoyance in the school environment. Over 50% of questioned teachers consider noise as annoying and near 40% as very annoying or unbearable. A-weighted equivalent continuous sound pressure levels measured in classrooms, teacher rooms and common rooms are in the range of 58–80 dB and they exceed 55 dB (criteria of noise annoyance). The most frequently reported subjective feelings and complaints (over 90%) are: growth of psychical and emotional tension, irritation, difficulties in concentrating, hoarseness, cough. Noise in schools is also a harmful factor. High A-weighted equivalent continuous sound pressure levels ranging from 80 to 85 dB, measured in corridors during pauses and in sports halls, can cause the risk of hearing damage among PE teachers and persons oversensitive to noise. The latter concerns both teachers and pupils. High background noise levels (55–65 dB) force teachers to raise their voice. It can lead to the development of an occupational disease – chronic voice disorders due to excessive vocal effort lasting for at least 15 years. In the education sector 785 new cases of this disease were reported only in 2008. Poor acoustics in classrooms (reverberation time ranging from 0.8 to 1.7 s, STI < 0.6 in 50% of classrooms) have an adverse influence on speech reception and make the teaching and learning processes difficult.
Źródło:
Archives of Acoustics; 2010, 35, 4; 521-542
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Perception-Based Method for the Noise Control of Construction Machines
Autorzy:
Carletti, E.
Powiązania:
https://bibliotekanauki.pl/articles/176980.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
noise control
acoustic design
sound quality
annoyance
psychoacoustics
construction machines
Opis:
During operation, construction machines generate high noise levels which can adversely affect the health and the job performance of operators. The noise control techniques currently applied to reduce the noise transmitted into the operator cab are all based on the decrease of the sound pressure level. Merely reducing this noise parameter may be suitable for the compliance with the legislative requirements but, unfortunately, it is not sufficient to improve the subjective human response to noise. The absolute necessity to guarantee comfortable and safe conditions for workers, requires a change of perspective and the identification of different noise control criteria able to combine the reduction of noise levels with that of psychophysical descriptors representing those noise attributes related to the subjective acoustical discomfort. This paper presents the results of a study concerning the “customization” of a methodology based on Sound Quality for the noise control of construction machines. The purpose is to define new hearing-related criteria for the noise control able to guarantee not only reduced noise levels at the operator position but also a reduced annoyance perception.
Źródło:
Archives of Acoustics; 2013, 38, 2; 253-258
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Role of Job Components and Individual Parameters on the Raised Blood Pressure in a Noisy Industry
Autorzy:
Abbasi, Milad
Farhang-Dehghan, Somayeh
Yazdanirad, Saeid
Mehri, Ahmad
Kolahdouzi, Malihe
Fallah Madvari, Rohollah
Akbarzadeh, Arash
Ghaljahi, Maryam
Powiązania:
https://bibliotekanauki.pl/articles/177433.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
noise exposure
noise annoyance
noise sensitivity
triglyceride
cholesterol
raised blond pressure
Opis:
The present study aimed to determine the role of job components and individual parameters on the raised blood pressure among male workers of textile industry who were exposed to continuous high noise level. Information of all eligible subjects including demographic and individual characteristics, medical history and job characteristics were obtained by direct interview and referring to the medical records. All blood pressure measurements were done using mercury sphygmomanometer in the morning before work. The 8-hours equivalent A-weighted sound pressure level, the level of blood cholesterol and triglyceride, and noise annoyance was determined for each worker. As the result of weighted regression in path analysis (direct effect), only the work shift did not have a significant effect on blood pressure among the studiem variables. It can be seen that variables including the level of triglyceride, cholesterol, and noise exposure have the most direct effects on blood pressure. The results of total effects showed that variables, including using the hearing protection device, age, work experience and visibility of sound source, did not have a significant effect on blood pressure. The results of this study indicate that occupational noise exposure alone and combined with other job components and individual parameters is associated with raised blond pressure. However, noise exposure was probably a stronger stressor for increased blood pressure.
Źródło:
Archives of Acoustics; 2019, 44, 3; 575-584
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traffic Noise and its Impact on Wellness of the Residents in Sambalpur City – a Critical Analysis
Autorzy:
Sahu, Alekh Kumar
Nayak, Satish Kumar
Mohanty, Chitta Ranjan
Pradhan, Prasanta Kumar
Powiązania:
https://bibliotekanauki.pl/articles/1953465.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
traffic noise
equivalent continuous noise level
annoyance
wellness
noise exposure index
Opis:
Noise is unwanted sound judged to be unpleasant, loud or disruptive to hearing. Like air pollution, noise pollution is one of the serious matters of concern in urban areas. Noise pollution occurs when noise level exceeds certain limit and has deleterious effects on human health and wellness. The major sources of noise pollution are industries, road traffic, railways, airplane traffic and social celebrations. The traffic noise is notably high in cities due to higher density of population, frequent movement of people, good transport system coupled with increasing numbers of vehicles (on road). In this work, the assessments of traffic noise in Sambalpur city is presented. Twelve important locations were chosen for the assessment. Noise contours were drawn to visualize the spreading of traffic noise into its surroundings. At the same time, the effect of noise pollution on wellness of the exposed people was studied. The study shows that the traffic noise level and its effects, are both in an alarming stage in the city.
Źródło:
Archives of Acoustics; 2021, 46, 2; 353-363
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study of the Romanian framework and the challenges in implementing the noise mapping legislation
Autorzy:
Popescu, Diana Ioana
Powiązania:
https://bibliotekanauki.pl/articles/31339841.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
environmental noise
noise assessment
noise mapping
annoyance
noise exposure
action plans
Opis:
The Environmental Noise Directive (END), published in 2002, was transposed into Romanian local law in 2005, and it was the starting point for the first urban noise mapping exercises, initially conducted in nine Romanian cities. This paper presents the main evolutionary aspects of the noise assessment process, the development of strategic noise maps, and action plans, dealing with both the legislative side and the practical approach and results obtained. The study considers the specific regulations established by the European Commission regarding environmental noise assessment and deals with the global context at the country level, in which they have been implemented and applied.
Źródło:
Archives of Acoustics; 2023, 48, 3; 273-280
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Qualification methods for assessment of annoyance of impulsive sounds
Metody kwalifikacji dźwięków impulsowych pod względem oceny ich uciążliwości
Autorzy:
Kukulski, B.
Wszołek, T.
Powiązania:
https://bibliotekanauki.pl/articles/368971.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
impulsive noise
impulsive adjustment
noise annoyance
hałas impulsowy
korekcja impulsowa
uciążliwość hałasu
Opis:
This paper presents the work on the problem of the qualification of impulsive sounds for applying the adequate value of impulsive adjustment. Impulsive events must be included in the assessment of noise in Poland. There is no agreement for using the objective methods that could qualify impulsive sounds on the basis of the measurable physical characteristics of the impulses. Moreover, the arbitrary classification includes only a few specified sources. The paper presents a review of the methods and criteńa for the qualification of the impulses and provides the results of applying these methods on a certain impulsive noise source - the collision of train cars.
W artykule zaprezentowano problem kwalifikacji dźwięków impulsowych w aspekcie wyznaczenia odpowiedniej wartości poprawki impulsowej. Uwzględnianie zjawisk impulsowych w ocenie hałasu środowiskowego jest w Polsce obowiązkowe. Jednakże nie ma jednej obiektywnej metody kwalifikacji impulsów na podstawie ich mierzalnych cech fizycznych. Co więcej, stosowane arbitralne metody obejmują jedynie kilka przypadków. W artykule dokonano przeglądu obowiązujących metod i kryteriów kwalifikacji dźwięków impulsowych, a także dokonano weryfikacji tych metod na przykładzie wybranego dźwięku impulsowego - zderzeń wagonów.
Źródło:
Mechanics and Control; 2014, 33, 3; 67-74
2083-6759
2300-7079
Pojawia się w:
Mechanics and Control
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of annoyance imact of road noise sources under the laboratory conditions
Ocena dokuczliwości oddziaływania źródeł hałasu drogowego w warunkach laboratoryjnych
Autorzy:
Paszkowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/112562.pdf
Data publikacji:
2017
Wydawca:
STE GROUP
Tematy:
variance analysis
noise annoyance
road noise
analiza wariancji
dokuczliwość hałasu
hałas drogowy
Opis:
The article presents an attempt to statistical assessment of the results of psychoacoustic studies of the experiment carried out on the annoyance of road noise sources. The study was subjected to noise annoyance assessment of emitted acoustic signals under laboratory conditions. The obtained results may be used in the acoustic quality modeling the acoustic quality of the urban environment at risk of noise.
W artykule przedstawiono próbę oceny statystycznej wyników badań psychoakustycznych z przeprowadzonego eksperymentu nad dokuczliwością źródeł hałasu drogowego. Badaniu podlegała ocena dokuczliwości hałasowej emitowanych sygnałów akustycznych w warunkach laboratoryjnych. Otrzymane wyniki badań wykorzystane mogą być w zadaniach modelowania jakości akustycznej środowiska zurbanizowanego zagrożonego hałasem.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2017, 6, 4; 105-111
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Noise Annoyance Caused by Amplitude Modulated Sounds Resembling the Main Characteristics of Temporal Wind Turbine Noise
Autorzy:
Hafke-Dys, H.
Preis, A.
Kaczmarek, T.
Biniakowski, A.
Kleka, P.
Powiązania:
https://bibliotekanauki.pl/articles/177437.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wind turbines amplitude modulation
noise annoyance
modulacja amplitudy turbin wiatrowych
uciążliwości hałasu
Opis:
Annoyance ratings for artificially created noises, resembling the main characteristics of temporal wind turbine noise, were studied by means of a listening experiment involving 21 participants with normal hearing. Three types of stimuli were examined: broadband noise (−4 dB/octave), noise generated by moving cars, and narrowband noise. All stimuli had the sound level fluctuations typical for wind turbine noise. The magnitude of the sound level fluctuations was measured in a quantitative way, by using the characteristics of amplitude modulated sound: modulation rate and modulation depth. Our aim was to examine how the modulation rate and the modulation depth influence the noise annoyance assessment of broadband and narrowband amplitude modulated noises. Three different modulation rates, 1, 2 and 4 Hz, and sound level fluctuations (a measure of the modulation depth), 3, 6, 9 dB, were applied to each type of stimuli (with exception of noise generated by the moving cars) and investigated. The participants in the listening experiment were presented with sound stimuli in laboratory conditions and asked to rate their annoyance on a numerical scale. The results have shown a significant difference between the investigated conditions. The effect was particularly strong between the annoyance judgments of different types of noise (narrow and broadband), and modulated versus unmodulated noises. Temporal fluctuations occurring in wind turbine noise are very pertinent to the perception of annoyance and could be responsible for its being a relatively annoying noise source. The obtained results were discussed and compared to the typical modulation rates and level changes that occur in recordings of real wind turbine noise.
Źródło:
Archives of Acoustics; 2016, 41, 2; 221-232
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Psychoacoustic metrics in the psychological diagnosis of noise annoyance
Autorzy:
Radosz, Jan
Powiązania:
https://bibliotekanauki.pl/articles/24201989.pdf
Data publikacji:
2023
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
noise
annoyance
workplace
sound
office
psychoacoustics
hałas
uciążliwość
miejsce pracy
dźwięk
biuro
psychoakustyka
Opis:
Aim of the study was to asses noise annoyance in relation to psychoacoustic metrics of sound in an office environment. The Vienna Test System was used for this purpose. Virtual office acoustic environments were developed with sources of different psychoacoustic parameters (loudness, sharpness, fluctuation strength, roughness) but with a constant A-weighted sound pressure level of 55 dB - sound environment with conversations, sound environment with office equipment (computers, printers, telephones) and sound environment with all office noise sources together. The reference environment was a quiet office room with no additional noise sources. Recorded real noise sources were transferred to a virtual 3D sound environment and converted into binaural sound, which was then played back on headphones. During the exposure to each of the acoustic environments, the subjects performed the ALS test (work performance series) and COG test (measurement of attention and concentration) and then assessed the given environment using a questionnaire. The paper presents the results of the statistical analysis - despite different psychoacoustic metrics of office noise sources in the examined acoustic environments, no statistically significant differences were observed in the results of psychological tests.
Źródło:
Vibrations in Physical Systems; 2023, 34, 1; art. no. 2023101
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison analysis of noise generated by wind turbines with the other noise source in outdoor environment
Autorzy:
Staniek, Andrzej
Kompała, Janusz
Bramorska, Alicja
Bartmański, Cezary
Powiązania:
https://bibliotekanauki.pl/articles/24201996.pdf
Data publikacji:
2023
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
wind turbines
infrasound
human annoyance
sound propagation
turbiny wiatrowe
infradźwięki
uciążliwość
propagacja dźwięku
Opis:
The paper presents a comparison analysis of the noise generated by wind turbines and the one generated by a ventilation shaft of a working coal mine. The aim of the research was to compare the frequency and amplitude distribution of those sources, especially in the infra range. The ultimate aim it is evaluate possible environmental impact on human annoyance or severity. During the research noise signals were recorded utilizing low frequency microphones, shielded by windscreens. Microphones were localized at the heights of 0.0 m, 1.5 m (approximate location of a human ear in a standing position) and 4 m. Additionally, a measurement position of a microphone in relation to the ground surface was observed. Measurements at ground level were performed according to the standard PN-EN 61400-11:2013-07 and in vertical position, where the microphone was mounted "upside down" with the grid flush with the board. The possible influence of wind speed was also monitored. The results of the measurements are discussed.
Źródło:
Vibrations in Physical Systems; 2023, 34, 1; art. no. 2023108
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Noise Exposure and Job Stress – a Structural Equation Model in Textile Industries
Autorzy:
Abbasi, Milad
Yazdanirad, Saeid
Mehri, Ahmad
Fallah Madvari, Rohollah
Alizadeh, Ahad
Ghaljahi, Maryam
Falahati, Mohsen
Powiązania:
https://bibliotekanauki.pl/articles/1953546.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
noise exposure
noise annoyance
noise sensitivity
job stress
job satisfaction
hearing protective devices
Opis:
Noise exposure is one of the most important physical agents in the workplace which can induce job stress in several ways. The aim of this study was to model the interactions between independent and mediating variables and job stress using structural equation modeling. In this study, Weinstein’s noise sensitivity scale, noise annoyance questionnaire, Health and Safety Executive (HSE) job stress questionnaire and job satisfaction scale were used. To assess worker’s noise exposure, the 8-hours equivalent continuous A-weighted sound pressure level (LAeq;8 h), was measured based on ISO 9612 (2009). To achieve the aims of study, the structural equation model was run using R software 3.4.1 and Cytoscape software 3.6.0. Based on the results, while there was a direct positive correlation of noise exposure on total job stress, there were also indirect positive effects through job satisfaction and noise sensitivity as mediator variables. Using hearing protective devices negatively affected total job stress through a direct pathway and an indirect pathway when job satisfaction was a mediator variable. Regarding the total effect of noise exposure and using hearing protection devices on job stress subscales, it can be concluded that noise exposure and using hearing protection devices had greatest effect on colleagues support and demand, respectively. It can be concluded that noise exposure and lack of hearing protective devices have a significant positive effect on job stress among workers of a textile industry. In addition to the direct effect, this factor can induce job stress through noise sensitivity, job satisfaction and noise annoyance. Therefore, measures which can decrease any of the mentioned factors, also can alleviate job stress.
Źródło:
Archives of Acoustics; 2020, 45, 4; 601-611
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ zjawiska maskowania na odczucie uciążliwości sygnałów impulsowych
Influence of the sound masking on the feeling of annoyance for impulsive signals
Autorzy:
Kukulski, B.
Powiązania:
https://bibliotekanauki.pl/articles/179294.pdf
Data publikacji:
2016
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
hałas impulsowy
maskowanie dźwięku
uciążliwość akustyczna
impulsowość
impulsive noise
sound masking
acoustic annoyance
impulsiveness
Opis:
Celem artykułu jest zbadanie typowych przykładów źródeł hałasu impulsowego generowanego w polu swobodnym oraz podjęcie próby określenia obiektywnego kryterium oceny poziomu tła akustycznego, przy którym dźwięk impulsowy przestaje być głównym źródłem uciążliwości akustycznej. Analizę uzupełniają wyniki testów odsłuchowych, polegających na subiektywnej ocenie uciążliwości akustycznej oraz ocenie skuteczności maskowania szumem badanych sygnałów.
The aim of the paper was to investigate the common examples of impulsive noise sources and an attempt to determine an objective criterion for assessing the level of background noise, at which the impulsive sounds are no longer a major source of acoustic nuisance. The analysis complemented by the results of the listening tests, consisting of subjective assessment of sound annoyance a and assessing the effectiveness of the masking the impulsive signals with a few examples of the noise.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2016, 5; 14-16
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie metod badań audiometrycznych w identyfikacji dokuczliwości hałasowej mieszkańców
Using of research audiometry methods in identification of noise annoyance inhabitants
Autorzy:
Paszkowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/112923.pdf
Data publikacji:
2015
Wydawca:
STE GROUP
Tematy:
dokuczliwość hałasowa
jakość akustyczna środowiska
badania audiometryczne
noise annoyance
quality of acoustic environment
audiometry research
Opis:
W artykule zaproponowano wykorzystanie metody skalowania głośności do identyfikacji i oceny dokuczliwości hałasowej mieszkańców narażonych na oddziaływanie hałasu drogowego. Opisano sposób przeprowadzenia badań audiometrycznych przy wykorzystaniu symulowanych sygnałów akustycznych źródeł dźwięku. Przedstawiono możliwości opisu zmiennych środowiska miejskiego o charakterze akustycznym i nieakustycznym za pomocą wskaźników. Wskazano na potrzebę budowy modelu jakości akustycznej środowiska z wykorzystaniem wskaźników środowiskowych i wyników badań audiometrycznych.
In the article there was proposed the use of method of loudness scaling to identify and evaluate the level of annoyance of people exposed to traffic noise. There was described the way of doing audiometric measurements with the use of simulated acoustic signal sources. There were also presented possibilities of description of urban environment variables, both of acoustic and non-acoustic nature, with the use of appropriate indicators. There was indicated the need of creation of a model of evaluation of acoustic quality of the environment with the use of environmental indicators and outcome of the audiometric measurement.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2015, 2 (11); 170-179
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluating an 80 Hz tonal noise from a hydropower plant
Autorzy:
Wallner, Peter
Hutter, Hans-Peter
Moshammer, Hanns
Powiązania:
https://bibliotekanauki.pl/articles/2161973.pdf
Data publikacji:
2019-06-14
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
tonal noise
hydropower plant
noise annoyance
public health evaluation
community-based prevention
low frequency noise
Opis:
A pumped storage power plant produces significant noise such that adjacent areas were deemed uninhabitable for the local population. In recent years, the population in the area has increased, and the noise levels are now causing significant distress to the local population. The company operating the power plant and a citizens’ initiative have both commissioned noise measurements. The measurements showed that the continuous pump noise was audible over many kilometers. The A-weighted sound-pressure level of 50 dBA at the next residential area underestimates the perceived noise, given the clear tonal nature in the low frequency range. Interviews of the exposed population, together with detailed “annoyance diaries” by a sample of the residents, proved their high level of annoyance. Their reported observations on distress and sleep disturbances coincide with the time course of the pumping operation. The pumping noise leads to annoyance in a large area, and to considerable nuisance in a smaller one. For the most exposed homes, long-term exposure might be considered a health hazard due to stress and disturbances in sleep quality. Therefore, the operator committed to developing a technical noise control plan. This case shows that a scientific approach within a complex environmental noise problem can foster an agreement about noise protection measures. However, this can only be successful if all involved parties participate in the process. Pilot studies are underway to test the impact of damping material layers on the pipes, the housing of the pipes, and the kind of air vessel solutions between the pumps and the pipes. Int J Occup Med Environ Health. 2019;32(3):401–11
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2019, 32, 3; 401-411
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Poszukiwanie korelacji między zapachem gazów odlotowych z oczyszczalni ścieków a stężeniami poszczególnych zanieczyszczeń
Searching for a correlation between odour of waste gases from wastewater treatment plant and a concentration of individual pollutants
Autorzy:
Friedrich, M.
Powiązania:
https://bibliotekanauki.pl/articles/2072086.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wskaźnik zapachu
dezodoryzacja
uciążliwość zapachowa
oczyszczalnia ścieków
odour indicator
odour abatement
odour annoyance
wastewater treatment plant
Opis:
W pracy poszukiwano zanieczyszczeń, które mogłyby pełnić funkcję wskaźnika przy projektowaniu, doborze czy monitoringu instalacji dezdodoryzującej gazy odlotowe z oczyszczalni ścieków. Analizie olfaktometrycznej GC-MS poddano gaz surowy oraz gaz oczyszczony za pomocą instalacji plazmowo-katalitycznej. Nie znaleziono korelacji między stężeniem zapachowym a stężeniami zanieczyszczeń. Postawiono tezę, że disiarczek dimetylu mógły być wskaźnikiem, jednak wymaga to potwierdzenia dalszymi badaniami.
Pollutants, which could be an indicator in the design, choosing and monitoring of odour abatement installation of waste gases from wastewater treatment plants were searched. Crude waste gas and gas purified by the plasma-catalytic system were analyzed using the olfactometric and GC-MS methods. A correlation between odour concentration and concentration of individual pollutants was not found. A thesis that dimethyl disulfide could be the indicator was put forward but it should be confirmed by further studies.
Źródło:
Inżynieria i Aparatura Chemiczna; 2013, 6; 533--534
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie oceny zapachowego oddziaływania w projektowaniu, optymalizacji i wyborze lokalizacji potencjalnie uciążliwej instalacji
Application of odour impact assessment in designing, optimization and location choice of a potentially annoying installation
Autorzy:
Friedrich, M.
Powiązania:
https://bibliotekanauki.pl/articles/2072084.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
modelowanie rozprzestrzeniania się odorów
emisja zapachowa
uciążliwość zapachowa
ferma trzody chlewnej
odour dispersion modeling
odour emission
odour annoyance
pig farm
Opis:
W pracy opisano procedurę oceny zapachowego oddziaływania przedsięwzięcia, umożliwiaj ącą określenie racjonalnej lokalizacji, optymalnej wysokości punktu wyrzutu gazów do atmosfery lub stopnia oczyszczenia gazów odlotowych, niezbędnych do zminimalizowania zapachowego oddziaływania do poziomu akceptowalnego przez lokalną ludność. Przedstawiono również jej zastosowanie na hipotetycznym przykładzie fermy trzody chlewnej, planowanej do budowy w określonej odległości od zabudowań mieszkalnych.
Odour impact assessment procedure enabling the determination of rational location, optimal point of waste gases discharge into atmosphere or a level of odour abatement efficiency necessary to minimize odour impact to a level accepted by local population is described. The paper also presents an example of this procedure application in the case of pig farms planned to be built at a certain distance from residential buildings.
Źródło:
Inżynieria i Aparatura Chemiczna; 2014, 1; 19--20
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ infradźwięków i hałasu o niskich częstotliwościach na człowieka – przegląd piśmiennictwa
The influence of infra- and low-frequency sound on human – a review of the literature
Autorzy:
Pawlas, K.
Powiązania:
https://bibliotekanauki.pl/articles/137803.pdf
Data publikacji:
2009
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
infradźwięki
hałas niskoczęstotliwościowy
percepcja słuchowa
skutki zdrowotne
uciążliwość
kryteria oceny
infrasound
low-frequency noise
hearing perception
health effects
annoyance
criteria for the assessment
Opis:
Infradźwięki są naturalnym zjawiskiem w świecie, a hałas infradźwiękowy powszechnie występuje w pobliżu dróg komunikacyjnych i w środowisku miejskim. W ostatnich latach znacznie wzrosło zainteresowanie infradźwiękami, zarówno ze względu na rozwój technologii wytwarzających infradźwięki i rosnący odsetek populacji eksponowany na ten hałas, jak i licznych niejasności z nim związanych. Z fizycznego punktu widzenia infradźwięki niczym nie różnią się od dźwięków słyszalnych czy ultradźwięków. Są zmianami ciśnienia rozchodzącymi się w postaci fal akustycznych w środowisku materialnym: ciałach stałych, cieczach i gazach. W niniejszym artykule będą rozważane tylko dźwięki rozchodzące się w powietrzu. Podział fal dźwiękowych na infradźwięki, dźwięki słyszalne i ultradźwięki wynika z tradycji i ma swoje korzenie w historycznych już badaniach wrażliwości narządu słuchu w funkcji częstotliwości, gdy skalę dźwiękową, z uwagi na ówczesne możliwości aparatury generującej sygnały akustyczne, podzielono na dźwięki słyszalne od 20 do 20 000 Hz i dźwięki niewywołujące u człowieka wrażenia słuchowego. Zaliczenie dźwięków o częstotliwościach < 20 Hz do dźwięków niesłyszalnych było podyktowane także i tym, że badane osoby określały słyszenie dźwięków z tego zakresu, nie jako słyszenie tonów w „normalnym” sensie, lecz raczej jako odczucie „ucisku” w uszach czy dudnienie, buczenie, a ponadto sygnały o niskich częstotliwościach najpierw były odbierane przez receptory drgań (Moore 1999). Ponadto, zarówno w przypadku dźwięków < 20 Hz, jak i dźwięków > 20 000 Hz problemem były, ograniczone wówczas, technicznie możliwości wytworzenia dźwięków o pożądanych parametrach. Dźwięki o częstotliwości poniżej 20 Hz nazywa się infradźwiękami (w niektórych pracach za górną gra-nicę infradźwięków przyjęto częstotliwość 16 Hz), a dźwięki o częstotliwościach powyżej 20 000 Hz nazwano ultradźwiękami (w niektórych pracach za dolną granicę ultra-dźwięków przyjęto częstotliwość 16 000 Hz). Istnieje wiele źródeł emitujących dźwięki o częstotliwościach poza zakresem 20 ÷ 20 000 Hz zarówno naturalnych, jak i antropogenicznych.
Infrasound is traditionally defined as low-frequency sound that is inaudible. Infrasound is acoustic energy with a frequency below 16Hz or 20 Hz and both frequency limits are used. There is no agreement regarding a definition of infrasonic noise. According to Polish standard PN-N-01338:1986, noise whose spectrum consists of sounds with frequencies below 50 Hz is called infrasonic noise, but in literature the term low-frequency noise is more common and 250 Hz is usually considered its upper-frequency limit. Besides a natural origin sources of infrasound like volcanoes, tornados, snow avalanches or less intensive ones like sounds of some animals, etc., there are many human origin sources, e.g., air transport, heavy trucks, compressors, ventilation, air-conditioning systems and more recently wind farms. The latter are spreading as alternative renewable sources of energy. That is why interest in infrasound has recently in-creased. Infrasound, contrary to traditional opinion about its inaudibility, is perceived by our body through our hearing organ and perception via mechanoreceptors has been reported when the infrasound is sufficiently strong. Its audibility depends on the acoustic pressure level and re-quires a much higher level than in the conventional range (20 ÷ 20000 Hz). Infrasound at an extreme high level above 175 dB induces aural pain and could destroy the middle and inner ear (eardrum rupture occurs at 185 ÷ 190 dB). Exposure to infrasound induces temporary threshold shift of hearing. Data on permanent hearing effects are scarce and this problem requires further research. The vestibular organ seems to be sensitive. There are some studies reporting that exposure to infrasound elicits nystagmus (eye movements) from both animals and humans and can result in nausea and giddiness. Subjects exposed to infrasound at a high level (above 130 dB) have reported body vibration. In the region of 40 ÷ 80 Hz the lungs, and below 10 Hz the chest, head and abdomen are resonated. Some results on infrasound were the basis for acoustic weapons. The most prominent effect of infrasound is annoyance, especially in non-occupational exposure but extra-aural effects of exposure are very large in dependence of levels, frequency, circumstances and the subject’s sensitivity. The following have been reported: temporary changes in EEG, sleep disturbances, changes in the cardiovascular system and blood pressure, changes in the digestive and endocrine systems and many others. Tiredness, drowsiness, reduction in concentration ability and performance have been shown as well. Experiments with animals supported human results, however, summing up there are many inconsistencies between the results of different research centres. For over 25 years a team led by Alves-Pereira and Castelo Branco has published many papers on the vibroacoustic disease (VAD). According to their hypothesis exposure to low-frequency noise causes many pathological changes called VAD. The list of symptoms is long, starting with mood and behavioral abnormalities that are early findings related to stage 1 of VAD through in-creased irritability and aggressiveness, a tendency for isolation, depressions and decreased cogni-tive skills to psychiatric disorders, hemorrhages, ulcers, neurological problems, muscle pain and many others at VAD stage III. So far, nobody other than Alves-Pereira and Castelo Branco’s team has reported VAD. Therefore, their hypothesis seems to be original but controversial. Lack or scarcity of evidence should be filled by multicenter research based on scientific methods including epidemiological studies. Some problems with the effect of infrasound on human have resulted from the inconsistency in various authors’ measurements of low-frequency noise. There are some regulations related to infrasound and low-frequency noise, e.g., in Sweden, France, Russia, New Zealand and recently Poland. There is also a recommendation of the American Conference of Governmental Industrial Hygienists for ceiling levels of infrasound in occupational settings. Besides, some countries established national criteria for low-frequency noise in the environment or indoors (Denmark, the Netherlands, Germany, the UK, Sweden and Po-land). Summarizing, it should be emphasised that further research on the health effect of infrasound on human are necessary; especially the hypothesis of VAD should be investigated by multi-center research to be confirmed or refuted. Research should be performed using standardized methods of measurement and equipment. So nowadays to establish TLVs for low-frequency noise in occupational settings further research is necessary.
Źródło:
Podstawy i Metody Oceny Środowiska Pracy; 2009, 2 (60); 27-64
1231-868X
Pojawia się w:
Podstawy i Metody Oceny Środowiska Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perceiving the advertising in gender-generational characteristics
Przedstawianie reklamy w charakterystykach gender-generacyjnych
Autorzy:
Bačík, R.
Fedorko, R.
Rigelský, M.
Sroka, M.
Turáková, A.
Powiązania:
https://bibliotekanauki.pl/articles/405646.pdf
Data publikacji:
2018
Wydawca:
Politechnika Częstochowska
Tematy:
advertising
perception
annoyance
truth
influence
frequency
memorise
gender
generation Y
generation Z
reputation management
reklama
percepcja
rozdrażnienie
prawda
wpływ
częstotliwość
zapamiętywanie
płeć
pokolenie Y
pokolenie Z
zarządzanie reputacją
Opis:
As a primary objective of this study, data were evaluated in the areas of advertising perception and the relationship between gender-generational characteristics was pointed out (generation Y and Z), moreover the selected types of advertising were mentioned. The types of advertising (advertising on TV, social networks, etc.) can acquire various forms (most annoying, most trusted, etc.) in gender-generational characteristics, which can affect the reputation of the organization. The data were obtained through a questionnaire research. The sample consisted of 296 responses. The data collection was implemented in early 2018. A significant difference was found in the perception of advertising in all dimensions among the categories of gender-generational characteristics except the 'most memorable'. Differential analysis was carried out, where significant differences occurred in a number of cases. Furthermore, a correspondent analysis was applied, in which the areas of perceptions of advertising had shown very close relations in several cases. The disadvantage of the research is that it is realized only in Slovakia.
Jako główny cel tego badania oceniono dane w zakresie postrzegania reklamy oraz wskazano związek między cechami pokoleniowo-płciowymi (pokolenie Y i Z), ponadto wymieniono wybrane rodzaje reklamy. Rodzaje reklam (reklama w telewizji, portale społecznościowe itp.) mogą przybierać różne formy (najbardziej irytujące, najbardziej godne zaufania, itp.) w cechach płciowych, które mogą wpływać na reputację organizacji. Dane uzyskano za pomocą badań ankietowych. Próbka składała się z 296 odpowiedzi. Gromadzenie danych zostało wdrożone na początku 2018 r. Znaczącą różnicę stwierdzono w postrzeganiu reklamy we wszystkich wymiarach wśród kategorii cech pokoleniowych, z wyjątkiem "najbardziej zapadających w pamięć". Przeprowadzono analizę różnicową, w której znaczące różnice wystąpiły w wielu przypadkach. Ponadto zastosowano analizę korespondencyjną, w której obszary percepcji reklamy w kilku przypadkach wykazywały bardzo bliskie relacje. Wada badań polega na tym, że jest ona realizowana tylko na Słowacji.
Źródło:
Polish Journal of Management Studies; 2018, 18, 1; 44-57
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Association between short-term annoyance and several physiological parameters during different amounts of nocturnal aircraft noise exposure
Związek między krótkotrwałym znużeniem a kilkoma parametrami fizjologicznymi podczas różnej liczby narażeń na hałas emitowany przez samoloty nocą
Autorzy:
Ohlenforst, Barbara
Ligthart, Seth
Aalmoes, Roalt
Schreckenberg, Dirk
van Miltenburg, Maykel
Powiązania:
https://bibliotekanauki.pl/articles/36433629.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
aviation
aircraft noise
short-term annoyance
heart rate
deep sleep
sleep efficiency
awakenings
actigraphy
lotnictwo
hałas emitowany przez samoloty
krótkotrwałe znużenie
tętno
głęboki sen
efektywność snu
przebudzenia
aktygrafia
Opis:
Annoyance is the most prevalent community response to environmental noise. Observational and experimental lab studies have shown that exposure to environmental noise leads to annoyance, sleep disturbance, daytime sleepiness, increased heart rate and increased blood pressure. However, previous literature is preliminary based on controlled settings or experimental design, raising the question of the generalizability and applicability in daily life scenarios. This study aimed to investigate two main research questions. First, what is the relationship between short-term annoyance and different amounts of nocturnal aircraft noise exposure in daily life? Second, what is the relationship between physiological parameters, including heart rate, number of awakenings, sleep efficiency, sleep duration and different amounts of nocturnal aircraft noise exposure in daily life? This study also aimed to explore the suitability of non-invasive commercially available activity trackers to measure physiological metrics in a scientific way. During this field study, participants were wearing Fitbit Charge 3 activity trackers recording heart rate and different sleep-derived metrics (e.g. deep sleep duration, sleep efficiency and awakenings). The used activity trackers were readily available, non-intrusive, relatively cheap and easy to use by the participants. Simultaneously, a logbook was used by the participants to track the subjective perception and situational context of air traffic noise exposure. The noise levels corresponding to the exposure of air traffic of each participant were calculated based on the location of the participant and the corresponding radar track using an aircraft noise monitoring system. We hypothesize that a higher amount of exposure to aircraft noise in real life will be associated with increased annoyance, increased rest heartrate, higher number of awakenings, decreased sleep efficiency and decreased deep sleep duration.
Znużenie jest najbardziej rozpowszechnioną reakcją społeczności na hałas w środowisku. Obserwacyjne i eksperymentalne badania laboratoryjne wykazały, że ekspozycja na hałas środowiskowy prowadzi do irytacji, zaburzeń snu, senności w ciągu dnia, podwyższonego tętna i podniesionego ciśnienia krwi. Jednakże, wcześniejsza literatura opiera się wstępnie na ustawieniach kontrolowanych lub projektach eksperymentalnych, podnosząc kwestię uogólnienia i możliwości zastosowania w scenariuszach życia codziennego. To studium miało na celu zbadanie dwóch głównych kwestii badawczych. Po pierwsze, jaka jest zależność między krótkotrwałym znużeniem a różnymi liczbami nocnego hałasu emitowanego przez samoloty w życiu codziennym? Po drugie, jaka jest zależność między parametrami fizjologicznymi, w tym tętnem, liczbą przebudzeń, efektywnością snu, czasem trwania snu a różną ilością narażenia na hałas emitowany przez nocne samoloty w życiu codziennym? Badanie to miało również na celu zbadanie przydatności nieinwazyjnych, dostępnych na rynku urządzeń śledzących aktywność, do naukowego pomiaru parametrów fizjologicznych. Podczas tego badania terenowego uczestnicy nosili urządzenia śledzące aktywność Fitbit Charge 3, rejestrujące tętno i różne wskaźniki fizjologiczne (np. czas trwania głębokiego snu, efektywność snu i przebudzenia). Użyte rejestratory aktywności były łatwo dostępne, nieinwazyjne, stosunkowo tanie i łatwe w użyciu przez uczestników. Jednocześnie uczestnicy korzystali z dziennika rejestrującego w celu śledzenia subiektywnego postrzegania i kontekstu sytuacyjnego narażenia na hałas wytwarzany przez ruch lotniczy. Poziomy hałasu odpowiadające narażeniu na ruch lotniczy każdego z uczestników zostały obliczone na podstawie lokalizacji uczestnika i odpowiadającego mu toru radarowego z wykorzystaniem systemu monitorowania hałasu lotniczego. Zakładamy, że większe narażenie na hałas emitowany przez samoloty w warunkach rzeczywistych będzie wiązało się ze zwiększonym znużeniem, zwiększonym tętnem spoczynkowym, większą liczbą przebudzeń, zmniejszoną efektywnością snu i zmniejszonym czasem trwania głębokiego snu. Wstępne wyniki dotyczące interakcji między narażeniem na hałas emitowany przez samoloty, postrzeganym znużeniem i parametrami fizjologicznymi sugerują, że zwiększona nocna ekspozycja na hałas emitowany przez samoloty wydaje się negatywnie wpływać na efektywność snu i czas trwania głębokiego snu.
Źródło:
Transactions on Aerospace Research; 2020, 4 (261); 1-12
0509-6669
2545-2835
Pojawia się w:
Transactions on Aerospace Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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