The elliptical disc is a specific characteristic of triple offset butterfly valve (TOBV), but the structure leads to non-uniform distribution contact at closing position with wear. On other hand, continuous processing sections finish entire contour expensive compared circular section. In present study, improve above disadvantages an disc, elliptic cone function was established describe quadrupl...

he nasal valve is the narrowest region of the nasal passage, nd the main, flow-limiting segment of the nasal cavity.1,2 ariations in the size and shape of the nasal cavity affect he rate and pattern of airflow and influence nasal function. t therefore seems likely that improved nasal patency may lleviate snoring and sleep-disordered breathing.3,4 Traditional surgical management of nasal obstruc...

Experimental study of multi-path ultrasonic flowmeters measurement accuracy in complex flow fields was carried out in the water flowrate standard facility of National Water Large Flowrate Measurement Station. Several muti-path ultrasonic flowmeters with different path arrangement were studied. The flow disturbances were created by bend, tapered pipe, diverging pipe and butterfly valve. By study...

conclusions surgical and post-surgical findings showed that this segment was not related to the patient’s femur. the foreign segment may have belonged to the other victim of this trauma. introduction femoral shaft fracture is one of the typical bone fractures due to high energy trauma and may occur as an open fracture. some foreign materials may enter the fracture site such as sand, cloth parti...

Today's demanding projects calls for a quality valve that is effective in controlling the flow closed conduit with optimum velocity and least energy losses system. Proper selection of requires information on maximum minimum flows head loss wide range applications. Hence comprehensive research study was carried out an improvised tricentric butterfly 100 mm NB over conventional type globe at diff...