نتایج جستجو برای: sound and practical

تعداد نتایج: 16855817  

Journal: :The Journal of the Acoustical Society of America 1972

ژورنال: سلامت و محیط زیست 2012
اعظم, کمال, حسینی گوشه, سید نورالدین, فرهنگ دهقان, سمیه, منظم, محمدرضا, نصیری, پروین,

Background and Objectives: Sound of motorcycles plays an important role in noise pollution in big cities. This is due to the lack of national law or standards to control the noise of domestic and also imported motorcycles. This study tries to introduce a practical limit value in different stage of motorcycle life cycle by assessing their noise pollution. Materials and Methods: First the motorcy...

Journal: :the modares journal of electrical engineering 2011
bijan abbasi arand abdollah doosti aref

in this paper, for the purpose of investigating horizontal sound propagation, based on the results obtained from practical measurements in the strait of hormoz and available data on sound speed variations at different depths, a comprehensive model for shallow water multipath underwater acoustic channel is presented. mathematical modeling of multipath effect is based on ray theory and the image ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1392

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

2009
Mihailo Kolundžija Martin Vetterli

Multichannel sound field reproduction techniques, such as Wave Field Synthesis (WFS) and Sound Field Reconstruction (SFR), define loudspeaker filters in the frequency domain. However, in order to use these techniques in practical systems, one needs to convert these frequency-domain characteristics to practical and efficient time-domain digital filters. Additional limitation of SFR comes from th...

2014

The schema produces derogatory implications in its practical domain in that working with the elderly is considered as something inferior as “Working with older people is seen as focusing on custodial activities that lack the “excitement” and status of other fields of social work practice” [3]. The schema and its associative labels have also given rise to a loss of voice for the elderly in that ...

2006
GEOFFREY J. BARTON

An algorithm is presented for the fast and accurate definition of protein structural domains from coordinate data without prior knowledge of the number or type of domains. The algorithm explicitly locates domains that comprise one or two continuous segments of protein chain. Domains that include more than two segments are also located. The algorithm was applied to a nonredundant database of 230...

2014
Nate Charlow N. Charlow

I argue that taking the Practical Conditionals Thesis (PCT) seriously demands a new understanding of the semantics of such conditionals. Practical Conditionals Thesis: A practical conditional [if A][ought(B)] expresses B’s conditional preferability given A Paul Weirich has argued that the conditional utility of a state of affairs B on A is to be identified as the degree to which it is desired u...

ژورنال: سلامت کار ایران 2018

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید