The Influence of Household High Noise Appliances on Hearing Threshold

Author(s):  
Yuhan Wang ◽  
Ling Luo ◽  
Xin Zhang ◽  
Jie Wang
Keyword(s):  
1982 ◽  
Author(s):  
I. B. Mekjavic ◽  
D. Sinclair ◽  
D. Steele ◽  
N. S. Longridge

2013 ◽  
Vol 40 (2) ◽  
Author(s):  
Ni Ketut Susilawati ◽  
Wayan Sudana ◽  
Eka Putra Setiawan

Background: Noise pollution or noise is an unwanted sound which is disturbing to human beings.However small or soft the sound, if it is undesirable it is considered as noise. Noise induced hearingloss is a sensorineural hearing loss that is commonly encountered second to presbycusis. Purpose: Toknow the effect of traffic noise exposure on hearing impairment to the employees of the Parking DistrictCompany of the Denpasar city and to improve diagnostic detection on hearing impairment caused bynoise. Method: A cross sectional study was conducted at the Parking District Company office. Thepopulations of this study were the employees of the Parking District Company. Samples of this study were the employees who were exposed to traffic noise and control samples were an employee who was unexposed. Samples were selected by simple random sampling. Results: From 40 parking attendants,27 persons (67.5%) aged above 35 years old. The parking attendants who had been working for ten to fifteen years were 36 persons (90%) and no history using ear protection when working. Seven persons(17.5%) had referred DPOAE upon examination with increase hearing threshold on audiogram result.In this study the parking attendants who had hearing deficit induced by noise were 7 persons (17.5%)and only one person (2.5%) in control group. There was a statistically significant effect of traffic noiseto hearing function deficit (p<0.05). Conclusion: Traffic noise has effect in hearing function deficit onthe parking attendants.ORLI Vol. 40 No. 2 Tahun 2010Key words: NIHL, parking attendant, audiometry, DPOAE.


2003 ◽  
Author(s):  
A. Butler ◽  
B. Bixby ◽  
M. Gasper ◽  
M. Kelley

Author(s):  
Nam-Jeong Kim ◽  
Hyoung-Ouk Park ◽  
Chang-Sun Sim ◽  
Choong-Ryeol Lee ◽  
Young-Joo Kwon ◽  
...  

2010 ◽  
Vol 32 (11) ◽  
pp. 2630-2635
Author(s):  
Yong-sheng Guan ◽  
Qun-sheng Zuo ◽  
Hong-wei Liu

Author(s):  
A. V. Mazin ◽  
M. Yu. Aliyev

The article investigates the problem of providing high noise immunity radar under the influence of passive and intentional interference. The purpose of radio operation of the radar is to create conditions that would impede the operation of systems and minimize its effectiveness. The main method of radio transmission is still creating (staging) interference. Modern radar systems must solve the tasks in terms of electronic suppression using, including intentional interference and under severe time constraints. It is shown that the most effective way to improve the noise immunity of radar systems designed to operate in multipoint space, including non-stationary, interference is adaptive space-time processing of the received signals, based on the angular selection of targets, due to the formation of zeros in the directional diagram in the direction of interference sources. This problem is solved by determining the accuracy of the direction finding of interference sources and is achieved by the joint operation of the antenna array and multi-channel signal processing devices, namely the separation of interference signals on different receiving channels.


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