نتایج جستجو برای: acoustic equipment

تعداد نتایج: 161708  

Journal: :Energies 2021

This article presents the results of design acoustic–magnetic device thermal protection technology based on simulation. The (AMD) was installed in heat supply system a greenhouse complex with geothermal source, developed and patented by authors this paper. Simulation performed to investigate possibility maintaining acoustic transmitter temperature its operating range. QuickField Student Edition...

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Background and Objective: A practical method for noise control in environments with different noise sources is designing an acoustic cabin for the workers. In this regard, this study aimed to assess the efficiency of the acoustic cabin in a typical turbine unit of a thermal power plant to provide acoustic comfort. Materials and Methods: Measurement of the noise level and spectrum, as well as v...

Journal: :thrita 0
mohaddese tarazani speech therapy department, tehran university of medical siences, tehran, ir iran seyyedeh maryam khoddami speech therapy department, tehran university of medical siences, tehran, ir iran; tehran university of medical sciences, school of rehablitation, madar square, nezam alley, shahnazari street, mirdamad street, tehran, ir iran. tel: +98-2122228051(155), fax: +98-2122220946 shohre jalaie physiotherapy department, tehran university of medical siences, tehran, ir iran saeed talebian moghadam physiotherapy department, tehran university of medical siences, tehran, ir iran mohammad akbari physiotherapy department, tehran university of medical siences, tehran, ir iran

results certain correlations were found between fundamental frequency in vowel and total vhi, physical, functional and emotional domains of vhi in group 1 (r = 0.636, 0.649, 0.613 and 0.592 respectively). there was good correlation between speaking fundamental frequency and total vhi and its subscales - except the physical subscale - were also correlated. in group 2, the correlations between ji...

In the present paper, the phonological feature geometry of the Persian phonemes is analyzed in the form of articulate-free and articulate-bound features based on the articulator model of the nonlinear phonology. Then, the reference phonetic pattern of each feature that consists of one or a set of acoustic correlates, characterized by the quantitative or qualitative values in its phonological re...

Journal: :trauma monthly 0
maryam rezaee trauma research center, baqiyatallah university of medical sciences, tehran, ir iran mohammad mojtahed department of otolaryngology, imam khomeini hospital, tehran university of medical sciences, tehran, ir iran mohammad ghasemi department of otolaryngology, imam khomeini hospital, tehran university of medical sciences, tehran, ir iran; health research center, baqiyatallah university of medical sciences, tehran, ir iran. tel: +98- 2182482484, fax: +98-2188600062 babak saedi department of otolaryngology, imam khomeini hospital, tehran university of medical sciences, tehran, ir iran

background: military personnel are usually exposed to high levels of impulse noise (in) which can lead to hearing loss. objectives: the purpose of this study was to assess the effects of relatively low level exposure of impulse noise (in) during shooting practice on hearing using pure tone audiometry (pta) and transiently evoked otoacoustic emission (teoae) in military personnel. materials and ...

Journal: :Health promotion practice 2009
Brian D Johnston Elizabeth Bennett Linda Quan Denise Gonzalez-Walker Beth Crispin Beth Ebel

Based on the local incidence and severity of motor vehicle occupant injuries, the authors' community and hospital injury prevention partnership identified child passenger safety for 4-to-8-year-old children as a priority. They designed a booster seat promotion campaign using an integrated social cognition model of health behavior. A series of focus groups were held with low-income African Ameri...

2006
Valentine Hacquard Mary Ann Walter Alec Marantz

Production studies have shown that speakers of languages with larger phoneme inventories expand their acoustic space relative to languages with smaller inventories [Bradlow, A. (1995). A comparative acoustic study of English and Spanish vowels. Journal of the Acoustical Society of America, 97(3), 1916–1924; Jongman, A., Fourakis, M., & Sereno, J. (1989). The acoustic vowel space of Modern Greek...

Journal: :Chang Gung medical journal 2010
Ching-Yi Wu Yu-Wei Hsieh Keh-Chung Lin Li-Ling Chuang Ya-Fen Chang Ho-Ling Liu Chia-Ling Chen Kwan-Hwa Lin Yau-Yau Wai

BACKGROUND Bilateral arm training (BAT) and constraint-induced therapy (CIT) have shown beneficial effects in improving motor control and function of the upper extremities (UE) for patients with stroke. Thus far, no study has directly investigated the relative effects of BAT versus CIT on brain reorganization. This study compared the effects of BAT with distributed CIT (dCIT) on brain reorganiz...

2005
Michael E. Smith

Small ceramic figurines were common components of domestic artifact inventories at Aztec archaeological sites. These objects provide important evidence in the investigation of Aztec domestic ritual (Smith 2002). a realm poorly represented i n the abundant ethnohistoric documentation of Aztec religion. Although Aztec-style ceramic figurines are abundant both in museum collections and at archaeol...

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