There are three types of bicuspid aortic valves — types 0, 1, and 2. Experts classify these types based on whether the leaflets of the valve have fused to form a ridge. A bicuspid aortic valve is a ...

Equipment for gas chromatography, liquid chromatography and mass spectrometry is complex, with multiple subsystems that control the flow of sample analyte, carrier gas and solvent fluids. The ...

Surgery is usually the best fix for a severe heart valve disease. Different types of heart valve blockages can happen, and surgery is necessary to fix these problems. Your heart is split into four ...

Among the various types of valves on the market, ball valves are critical in high-pressure systems, enabling precise fluid control in industries like power generation, chemical processing, and oil and ...

ISA recently published Fluid Mechanics of Control Valves: How Valves Control Your Process by Hans D. Baumann, Ph.D., PE — a world-renowned expert on control valve technology who is credited with more ...

In hydronic heating, to control where heated water goes to various sections of a building, the system might rely on two or more zone valves. A zone valve opens or closes based on demand from a ...

The aortic valve allows blood to leave the heart and travel through the aorta, which is the largest artery in the body. Aortic stenosis is when this heart valve narrows and doesn’t open fully. The ...

A heart valve that is severely damaged may need replacing. A surgeon may replace the damaged valve via an incision in the groin. The heart contains four valves, which allow blood to move in and out of ...

The National Institute for Health and Care Excellence (NICE) has raised concerns about price variations for valves used in keyhole heart procedures. In a late stage assessment on valves used in ...