منابع مشابه
formation and evolution of regional organizations: the case study of the economic cooperation organization (eco)
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
15 صفحه اولThe electronic stethoscope
Most heart diseases are associated with and reflected by the sounds that the heart produces. Heart auscultation, defined as listening to the heart sound, has been a very important method for the early diagnosis of cardiac dysfunction. Traditional auscultation requires substantial clinical experience and good listening skills. The emergence of the electronic stethoscope has paved the way for a n...
متن کاملStethoscope Acoustics
IT is an anachronism that the stethoscope, introduced in 1819, remains an indispensable medical tool today although no standards have ever been set for its acoustical performance.' Neither has a standard test been established for evaluating the acoustics of the intact instrument. Furthermore, there is no information on the intimate acoustical interaction of the stethoscope with the doctors' ear...
متن کاملEmbedded Stethoscope
A stethoscope is an instrument used for auscultations to convey heart sounds as well sounds in the other parts of the body. However, traditional stethoscopes are restricted only to audio representation of such sounds and the diagnosis depends on the expertise of the doctor. This project is an attempt to develop an Embedded Stethoscope to capture heart sounds which offers better noise cancellati...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Journal of the Royal Society of Medicine
سال: 1980
ISSN: 0141-0768,1758-1095
DOI: 10.1177/014107688007300611