نتایج جستجو برای: valve timing

تعداد نتایج: 192876  

Journal: :وقایع علوم کاربردی ورزش 0
amir shams sport sciences research institute, iranian ministry of sciences, research and technology, tehran, iran seyedeh mansoreh naeimi tajdar department of motor behavior, faculty of sport sciences, central tehran branch, islamic azad university, tehran, iran

this study aims to better understand the effect of practice schedule and feedback providing types. in two separate experiments the contextual interference effect in bandwidth and self-control feedback conditions on relative and absolute timing learning was examined. in experiment i, the effect of contextual interference using bandwidth and self-control feedback on absolute timing learning (para...

Journal: :Energies 2023

At partial load, traditional automotive gasoline engines have high pumping losses due to the throttling of intake charge for load control. Variable Valve Timing (VVT) and introduction externally cooled EGR could reduce but only with a very limited effect. On other hand, in medium full range, engine cannot utilize compression ratio limitations knocking. A variable displacement, device which util...

Journal: :Transactions of the Japan Society of Mechanical Engineers 1968

Journal: :British heart journal 1986
H von Bibra A Wirtzfeld R Hall K Ulm H Blömer

The effect of mitral valve closure on left ventricular filling time and its relation to the onset of systole were assessed from mitral valve echocardiograms and simultaneous apex cardiograms in 21 normal subjects, 11 patients with left bundle branch block, and 19 patients with VDD pacemakers programmed for atrioventricular intervals of 50, 150, and 250 ms. The interval between the electrocardio...

Journal: :Journal of the American College of Cardiology 2002

Journal: :International Journal of Multimedia and Ubiquitous Engineering 2014

2015
ADRIAN MOLNAR IOAN MURESAN CATALIN TRIFAN DANA POP DIANA SACUI

BACKGROUND AND AIMS The introduction of Duke's criteria and the improvement of imaging methods has lead to an earlier and a more accurate diagnosis of infectious endocarditis (IE). The options for the best therapeutic approach and the timing of surgery are still a matter of debate and require a close colaboration between the cardiologist, the infectionist and the cardiac surgeon. METHODS We u...

غفاری , رحمان, قلی پوربرادری , افشین,

Primary heart tumors are not common. Âlthough myxoma is the most common tumor of the heart, mitral valve myxoma is extremely rare. The patient is a 55 years old woman who had atypical retrosternal pain, retinal artery emboli and visual deficit. Ïn transesophageal echocardiography a (4x3x3) cm mass was detected in posterior leaflet of mitral valve. The posterior leaflet of mitral valve was tot...

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