نتایج جستجو برای: wave parameters

تعداد نتایج: 779811  

Journal: :Journal of Physics: Conference Series 2013

Journal: :Journal of the Korean Physical Society 2008

Homayoun Oraizi Narges Nouri

With the rapid growth of indoor wireless communication systems, the need to accurately model radio wave propagation inside the building environments has increased. Many site-specific methods have been proposed for modeling indoor radio channels. Among these methods, the ray tracing algorithm and the finite-difference time domain (FDTD) method are the most popular ones. The ray tracing approach ...

Journal: :Journal of Neurology, Neurosurgery & Psychiatry 1998

The simultaneous effects of soil and existing structures are known as the site-city interaction (structure-soil-structure). The impact of site-city interaction on structure behavior is effective. Thus, this interaction in some regions decreases the responses while increases in other areas. In addition, the site-city interaction of many parameters including the soil type, density rate, height of...

Journal: :Circulation. Arrhythmia and electrophysiology 2013
Kimmo Porthan Matti Viitasalo Lauri Toivonen Aki S Havulinna Antti Jula Jani T Tikkanen Heikki Väänänen Markku S Nieminen Heikki V Huikuri Christopher Newton-Cheh Veikko Salomaa Lasse Oikarinen

BACKGROUND Previous population studies have found an association between electrocardiographic T-wave morphology parameters and cardiovascular mortality, but their relationship to sudden cardiac death (SCD) is not clear. To our knowledge, there are no follow-up studies assessing the association between electrocardiographic T-wave peak to T-wave end interval (TPE) and SCD. We assessed the predict...

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