نتایج جستجو برای: control valve

تعداد نتایج: 1426425  

2010

T a new major technological advance is available that can help control-valve users avoid many of the problems and inefficiencies associated with using compressed air as a power medium. The new solution uses electric power and eliminates dependence on compressed air. This totally electric solution is appropriate and cost-effective for a wide variety of control-valve applications, including those...

2014
Kenjiro Cho

In this paper, we present the ow-valve, a safety-valve mechanism for RED to protect the network from misbehaving or overpumping ows and to promote end-to-end congestion control. The ow-valve can be regarded as an implementation of the concept known as a \RED penaltybox" but our focus is to protect router resources in times of congestion. The ow-valve detects a tra c increase that goes beyond th...

Noordin Mohammadi, Parviz Namazi, Seyed Saeed Hosseni,

Background: Heart valve disease gradually increases the pressure in the heart chambers and impairs heart pumping. It influences on quality of life due to low output, disability, fear, amnesia, anxiety, and depression. Although most of signs and symptoms in patients with heart valve diseases may significantly decrease after valve replacement surgery, there is limited information about the impact...

2013
Bastian Bischoff Duy Nguyen-Tuong Torsten Koller Heiner Markert Alois Knoll

The throttle valve is a technical device used for regulating a fluid or a gas flow. Throttle valve control is a challenging task, due to its complex dynamics and demanding constraints for the controller. Using state-of-the-art throttle valve control, such as model-free PID controllers, time-consuming and manual adjusting of the controller is necessary. In this paper, we investigate how reinforc...

Journal: :Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 2011

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The aim of this study was to provide a new model for identifying the sources and sources of waste gas in Mahdishahr city gas department and to define corrective measures and prioritize measures to help managers to make appropriate decisions to reduce waste gas. The research method is descriptive-analytical in terms of nature and is applied in terms of purpose. The statistical sample of the rese...

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...

صدیقه سالمی, ,

Prolapsed Mitral Valve Syndrome is a common, benign disorder with prevalence of %0.3-6 in population. This syndrome also is known as Barlows Syndrome and Flaapy Mitral Valve Syndrome. Prolapsed Mitral Valve is the dropping of one or two mitral valve leaflet(s) into the left atrium during ventricular systole. This malformation leads to incomplete closing of mitral valve and regurgitates the bloo...

Journal: :Proceedings of the JFPS International Symposium on Fluid Power 2002

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