نتایج جستجو برای: measurement noise
تعداد نتایج: 620940 فیلتر نتایج به سال:
Background and Aim: Noise pollution is recognized as a major problem in urban areas. Therefore, the current study was aimed to determine noise pollution indices in Birjand old districts. Materials and Methods: In this cross-sectional and analytical-descriptive study, noise measurement was performed by means of "CEL" sound level meter (model 450.490). Equivalent noise level "Leq 10 min" was meas...
In this paper, the performance of a Ring Laser Gyro based inertial navigation is investigated. Dynamic and stochastic modeling are applied to gyro simulation and performance evaluation. In the dynamic model, some parameters such as scale factor and environmental sensitivity have been determined, whereas in the stochastic model, the other parameters such as random drift and measurement noise...
background and aims: Hospital acoustics, noisy equipment and people have adversely impacts on patient’s physical and mental health. This paper aims to identify the major sources of noise and noise control techniques in hospitals of Behbahan Methods: Noise measurement was done according to ISO9612 at designated stations. Equivalent sound pressure levels were measured at 243...
Introduction: The body's response to noise pollution is very similar to the way the body responds to stress, which can lead to poor health over time. In this regard, this study was conducted to determine the general health of the elderly and its relationship with traffic noise pollution in Ardakan. Methods: This descriptive cross-sectional study was conducted in 1399. Participants were 200...
objective: noise pollution is one of the most important situations requiring a solution by the contemporary world. the national institute for occupational safety and health has identified noise as one of the ten leading causes of work-related diseases and injuries. dentists and dental auxiliaries are exposed to different noise levels while working in dental offices or laboratories. the purpose ...
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