introduction: sudden sensorineural hearing-loss (ssnhl) patients constitute approximately 2–3% of referrals to ear, nose and throat (ent) clinics. several predisposing factors have been proposed for this condition; one of which is vascular disorders and perfusion compromise. in this research the atherosclerotic changes and their known risk factors are studied in ssnhl patients.   materials and ...

Background In patients with abnormal uterine bleeding, transvaginal ultrasound (TVS) is the first-line diagnostic approach to exclude endometrial pathology. If a thickened endometrium suggests endometrial pathology, sonohysterography, office hysteroscopy or dilatation and curettage are the second-line tests preferred, depending on availability and on the suspected pathology, to exclude malignan...

Aim: The aim of this prospective study was to determine and compare the various parameters and indices of portal vein, hepatic artery and splenic artery by sonographic Doppler imaging in chronic hepatitis C patients and healthy individuals.Methods: 45 Chronic Hepatitis C patients and 90 Healthy adults formed two groups. All participants underwent color Doppler imaging of the portal vein, hepati...

The COPE field campaign operated from the 3rd July to the 20 th August 2013, with ground operations based in Davidstow Cornwall where the X-band polarimetric Doppler radar was located. Figure 1 shows the location of Davidstow, the Chilbolton S-band polarimetric Doppler radar and the C-band radars within the Met Office network. The Met Office Cobbacombe C-band radar was operational although not ...

a r t i c l e i n f o a b s t r a c t Keywords: Earth-centered earth-fixed (ECEF) coordinate system Converted measurement Kalman filter (CMKF) Posterior Cramer–Rao lower bound (PCRLB) Sequential filter Doppler Correlation coefficient For an airborne Doppler radar, the carrying platform is moving and has time-varying attitudes. The filtering algorithms applicable to local coordinate system are n...

turkmen horse is one of the oldest and purest breeds in the world, but there is no information on doppler echocardiographic parameters in this horse. in the present study, pulsed-wave (pw) doppler echocardiography was performed on 42 clinically normal 3- to 15-year-old racing turkmen horses. no cardiac disease was detected with two-dimensional (2-d) real-time, m-mode, and colour flow mapping. d...

The effect of Doppler spreading destroys the orthogonality of the subcarrier in OFDM giving rise to inter-carrier interference (ICI), and the Doppler spectrum types of MIMO with distributed antenna systems (DAS) may not be the same. This paper focuses on the analysis of ICI for MIMO OFDM with DAS. Firstly the instantaneous expression of SINR is presented using zero force (ZF) detector. Then the...