نتایج جستجو برای: intake valve opening
تعداد نتایج: 260965 فیلتر نتایج به سال:
Bottom intake is an intake structure which can be considered as an alternative for regular intakes in mountain streams Water in in taking from river are very vast and complicated issues, each project has special characteristics which should be considered. Water intake from riveris generally based on Pump and gravity method. The gravity method is more useful and common because of continuity and ...
One of the main problems commonly encountered by the intakes of the power plants is the formation of vortex and turbulent flow at the intake of the reservoirs.Using the image processing method by using the PTV technique in a survey flow hydraulic of a horizontal intake with a trashrack by certain opening,under the submergence depths and different flow rates and comparing it with intakes without...
OBJECTIVE The diagnosis of shunt malfunction can be challenging since neuroimaging results are not always correlated with clinical outcomes. The purpose of this study was to evaluate the efficacy of a simple, minimally invasive cerebrospinal fluid (CSF) lumbar tapping test that predicts shunt under-drainage in hydrocephalus patients. METHODS We retrospectively reviewed the clinical and radiol...
1 of 2 DESCRIPTION A 29-year-old woman presented with pulmonary oedema and low cardiac output. Her mitral valve was replaced 20 years back with a Sorin mechanical valve. She had stopped anticoagulants a month back on her own for excessive menstrual bleeding. Echo showed a gradient of 26 mm Hg across the valve with regurgitation. Fluroscopy confi rmed limited disc opening of only 15° with incomp...
M-mode echocardiograms are demonstrated from a patient with subacute massive pulmonary embolism before and after thrombolytic treatment and clinical recovery. Severely impaired left ventricular contraction returned to normal. A reversible reduction in mitral valve opening velocity was also seen and was thought to be in part the result of diminished left atrial filling. This hypothesis was teste...
In two patients with rheumatic heart disease a short, loud, high pitched, early diastolic, snapping sound was heard at or below and to the right of the xiphisternum. Except for the different area of audibility it was similar on auscultation to the opening snap of the mitral valve. Both patients showed clinical evidence of tricuspid as well as mitral and aortic valvular disease. There was hemody...
The ability of the echocardiogram to define mitral valve opening and closure was assessed by simultaneously recording the echocardiogram of the anterior leaflet (ECHO) with intracardiac pressures, aortic second sound, and ECG on 38 occasions in 14 patients undergoing cardiac catheterization. Hemodynamic opening and closure were defined by intersection of the pulmonary wedge and left ventricular...
aesthetic lines after osteotomies, symmetries of the middle third. It is also used for functional recovery of opening the nasal valve. The evaluation of the results of spreader graft is difficult and subjective. Measuring nasal valve angle is an objectie criteria of functional outcome, the brow tip aesthetic lines referred by Tardy and Sheen are options for aesthetic evaluation. Our common indi...
OBJECTIVE To assess the hydrodynamic properties of three new types of hydrocephalus valve. METHODS Three new constructions have been recently tested in the UK shunt Evaluation Laboratory: the magnetically adjustable Strata Valve (Medtronic PS Medical), the gravitational Miethke Dual-Switch Valve (Aesculap) and the ventriculo-sinus SinuShunt (CSF Dynamics). Pressure-flow performance curves wer...
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