The research of noise induced tympanic membrane perforation in cotton textile industry

Wang, Shiqiang; Song, Ran; Yao, Kun; Wang, Yu

doi:10.1109/ieem.2008.4738139

Cited by 3 publications

(3 citation statements)

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“…A more dynamic appreciation can be observed in Fig. 2, where each worker is analyzed and the maximum permissible limit in dB(A) is delineated with a red line and the action level dB(A) with a green line [16]. On the other hand, the results of the sound pressure attenuation by the use of hearing protectors at Dosimetry level can be found in Table VIII.…”

Section: Resultsmentioning

confidence: 95%

Determination of Levels of Exposure to Physical Agent: Equivalent Noise in the Coffee Production Industry

Delgado*,

Pantoja,

Carbajal

2019

IJITEE

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This The present article provides the results of a study on the noise as an industrial agent in a coffee company, during the roasting process, packaging and distribution of the final product. The study is oriented to identify the dangers and risks that are presented in the processes to determine the level to which the workers are exposed with the purpose of establishing preventive protection measures that allow to control the risks. Although the results of this study cannot be generalized, due to its qualitative nature, the proposed study can guide similar studies in other related processes in the coffee industry..

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Section: Resultsmentioning

confidence: 95%

Determination of Levels of Exposure to Physical Agent: Equivalent Noise in the Coffee Production Industry

Delgado*,

Pantoja,

Carbajal

2019

IJITEE

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“…They are shown in Table I. These ranges were established according to the minimum levels required in a library according to the criteria of noise [12], illumination [13] and ergonomics [14].…”

Section:  I 3 = Library Of the Faculty Of Environmentalmentioning

confidence: 99%

Integral Assessment of Risk Level in Libraries using the Grey Clustering Method

Delgado¹,

Maguiña²,

Carbajal³

2019

IJRTE

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The purpose of this study is to simultaneously analyze the different risk factors (lighting, noise, and ergonomics), obtain an overall assessment of the risk of these factors and classify them in scales of levels of: Very poor, poor, good and very good, from three libraries of the National University of Engineering. In order to classify them, the grey clustering method was used, which establishes two types of data: Standard data and sampling data, the first one refers to the minimum standards required to be met by a library according to each criterion (lighting, noise, ergonomics). The second one refers to the real data obtained in the field. Both data are evaluated in the indicated methodology and the clustering vector is constructed, which will allow to classify the libraries in the scales of established levels. According to the results obtained, it was determined that the lowest noise levels were obtained in the library of the Faculty of Environmental Engineering; nevertheless, these levels are not within the minimum standards of noise for libraries; in addition, it was determined that the lowest values obtained in illumination of each library correspond to the library of the Faculty of Environmental Engineering, since it is in levels of illumination significantly below what is required according to the minimum standards. On the other hand, adequate lighting levels were obtained in the library of the Faculty of Sciences, and it was determined that the best ergonomic comfort was obtained in the Central Library. According to the overall assessment of each of the libraries under study, according to the scale of levels established, it is concluded that the library of the Faculty of Environmental Engineering is at a poor level with respect to the other libraries (good level).

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“…In them, the sound is reflected mainly to the emitting source; nevertheless, part of the energy is transmitted through the barrier, and great part of it is diffracted by the edge of the same one, being the use of these screens generally used for the reduction of the traffic noise and sometimes as solutions of industrial [12] .…”

Section: Introductionmentioning

confidence: 99%

Acoustic Insulation Design of Noise in Welding Plant through Screens

Delgado*,

Luyo,

Carbajal

2019

IJITEE

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Abstract: Noise is one of the industrial hygiene agents of greatest concern, which explains the large amount of regulations and literature that attempt to reduce it. In most industries in Peru and the world the welding process is indispensable as part of their production process, nevertheless this activity involves several risks for people, not only for those who perform the activity but also those who are adjacent to it, within these risks, exposure to high levels of noise is one of the most difficult to control because the control at the source of noise is almost, one of the great passive controls in noise reduction is the use of screens or acoustic curtains. It is for this reason that the objective of this article is to propose a design of acoustic barriers through screens, respondingto the problem of noise generated in welding workshops. The stages in the process of designing acoustic screens for a welding plant are presented in chronological order.

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The research of noise induced tympanic membrane perforation in cotton textile industry

Cited by 3 publications

References 0 publications

Determination of Levels of Exposure to Physical Agent: Equivalent Noise in the Coffee Production Industry

Determination of Levels of Exposure to Physical Agent: Equivalent Noise in the Coffee Production Industry

Integral Assessment of Risk Level in Libraries using the Grey Clustering Method

Acoustic Insulation Design of Noise in Welding Plant through Screens

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