نتایج جستجو برای: sound

تعداد نتایج: 104142  

Journal: :The Journal of the Acoustical Society of America 1946

سلیمانی, زهرا, شاکری, نویده, کمالی, محمد,

Background and purpose: Speech sound disorders are the most common speech disorders in children which are associated with other problems and can lead to social problems, attention deficit and academic skills challenges. The aim of this study was to investigate articulation characteristics, phonological awareness and language skills in children with speech sound disorders. Materials and metho...

Objectives: The aim of this study was to assess the symmetry of ground reaction forces in patient with ACL rupture during vertical jump. Methods: Six men with ACLD (anterior cruciate ligament disease) participated in this study. Ground reaction forces components were assessed during Sargent jump by Kistler force plate. Data were analyzed running dependent Samples T-test and Repeated Measure in...

Ahmad Reza Yari, Esmaeil Idani, Gholamreza Goudarzi, Mehdi Vosoughie, Mohammad Javad Mohammadi, Mohammad Sadegh Rezaie, Niloofar Mohamadrezai Esfarjani, Poya Mohammadian Geravand, Reza Malihi, Roghayeh Hayati, Sahar Geravandi,

Background & Aims of the Study: Among the environmental pollutions, noise pollution, due to the potential physiological and psychological effects on humans, is of a particular importance. Exposure to noise can result in hearing loss in citizens. Health risks from noise associated with road traffic. Noise health effects are the health consequences of elevated sound levels. This ...

2013
Gibeom Park Kyogu Lee

This paper is about a development process of a novel sound effect device, which resembles ordinary spray can, with the purpose of adding sound elements to existing spray paint art. To this end, we first investigate the processes and the characteristics of spray paint art and find the common elements that can be expressed in an auditory form. We then design a prototype using Arduino and various ...

In this article, the radiated noise by a shock-absorber is studied. This particular shock-absorber is used in a heavy-gauge shearing line in order to stop the cut steel sheets. Three steps are followed to evaluate the propagated sound in the surroundings; first of all, the plate vibration response is specified after the impact. Secondly, the edges of the plate are substituted by a set of the mo...

2008
Sam Ferguson Densil Cabrera

Sound is commonly analysed subjectively by listening to it. However, when we want to analyse a sound objectively, we often switch domains, and change to visual or numerical displays. While it is likely that, generally speaking, the visual sense dominates other senses, when the data being explored are sound the question naturally arises as to whether these data may be statistically represented i...

1999
Axel G. E. Mulder Sidney Fels

We have prototyped sound sculpting, an environment in which a sound artist or musician can create, edit or perform sounds by changing parameters, like position, orientation and shape of a virtual object as input device, that can only be perceived through its visual and acoustic representations. We implemented sound sculpting by extending a realtime, visual programming language called Max/FTS, w...

Journal: :تحقیقات نظام سلامت 0
رستم گلمحمدی دانشیار گروه مهندسی بهداشت حرفه‎ای، دانشکده بهداشت و مرکز تحقیقات علوم بهداشتی، دانشگاه علوم پزشکی همدان، همدان، ایران محسن علی آبادی ستادیار گروه مهندسی بهداشت حرفه‎ای، دانشکده بهداشت، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی همدان، همدان، ایران ابراهیم درویشی عضو مرکز تحقیقات بهداشت محیط و مربی گروه مهندسی بهداشت حرفه‎ای، دانشکده بهداشت، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی کردستان، سنندج، ایران

background: in the steel industry, coke-fueled furnaces are used for smelting iron ore to produce cast iron are considered as sources of annoying noise.this study aims to evaluate the noise pollution blast furnace and sound source characteristics in order to present noise control measures in the steel industry. methods: measurement of noise level and its frequency analysis was performed using s...

Journal: :international journal of occupational hygiene 0
parvin nassiri occ. hyg. dep, school of public health, tehran university of medical sciences, tehran, iran. ali mohammad abbasi ilam university of medical sciences, ilam, iran.

the aim of the present study was to assess the industrial noise pollution and its effects on the blood pressure of workers during activities intextile factory in ilam,which is situated in west of iran. a cross-sectional study was performed on a group included 81 workers and 30 people as sample and control group, respectively. a questionnaire was filled out and then the other measurements includ...

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