Its unique cool flow valve can efficiently discharge hot and damp exhaled breath from inside the respirator, allowing easier breathing for users.

Mechanical engineers design air handling units to make sure that people are comfortable, that the air flow and temperature is just right.

This is called a cycle valve tube.

And this is how you make a valve.

This is actually a heart valve, which we engineered.

Does the color of the valve matter? What matters here?

Now that's a left ventricle pushing blood up through the aortic valve you can see two of the leaflets of the aortic valve working there up into the ascending aorta.

And the way you engineer this heart valve is the same strategy.

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

It has a funny trilobal shape at the bottom, which contains the aortic valve.

In Puntland and Somaliland some investment in roads and port activity has been possible, facilitating some commercial flow, whereas in the southern regions, road, sea and air infrastructures are rapidly deteriorating.

Even trips to the dentist require that you take antibiotics, in case you get an internal infection on the valve.

People bring their own cooker, he attaches a valve and a steam pipe, and now he gives you espresso coffee.

And just notice how she rolls under and turns she doesn t sit there and try and blow air into a tank and kind of flow up or sink down she just rolls.

We take the scaffold, we seed it with cells, and you can now see here, the valve leaflets opening and closing.

We are a company in the field of automation, and we'd like to do very lightweight structures because that's energy efficient, and we'd like to learn more about pneumatics and air flow phenomena.

Likewise, if you have the artificial valve option, you're committed to antibiotic therapy whenever you have any intrusive medical treatment at all.

I mean, if I just go through some of them now I know about laminar flow when it comes to air piercing objects, and that does it consummately well, you can see it can.

And the doctor has her sit down, and he takes her peak expiratory flow rate which is essentially her exhalation rate, or the amount of air that she can breathe out in one breath.

Andrea is a living air filter that absorbs toxic gasses from air, contaminated indoor air.

So, the most beautiful thing I found at least what I think is the most beautiful in the book, is this heart valve.

So this is actually a Dutch company, so I called them up, and I asked, Can I borrow a heart valve from you?

Great and then I didn't hear from them for weeks, so I called, and I asked, What's going on with the heart valve?

UNODC expanded assistance in order to improve the law enforcement capacity at sea, air and land ports of entry in several countries of East and Southern Africa to reduce the flow of drugs and other contraband.

He turned the wrong valve when he filled his cylinder he had 80 percent oxygen in his tank when he should have had 40.

The low tech bit is that it's literally a pig's heart valve mounted in the high tech bit, which is a memory metal casing.

So you see the leaflets opening and closing of this heart valve that's currently being used experimentally to try to get it to further studies.

Air

Air

Air.

The fire disaster happened at about 10 00am and was put out at about 10 30am. It is the snifting valve inside that triggered the fire.

And that flow, that flow of life, from the very base up to the very top, is the flow that ecologists see.

This measures dynamic blood flow and therefore energy flow within the brain.

Calligra Flow

Flow chart

Indeed, the start of 2005 saw some movement on improved ties, with the introduction of a hugely successful lunar new year charter flights program. This gave rise to serious discussion about instituting permanent direct air links to aid bilateral trade flow.

And they said, Well the director of the company decided not to let you borrow this heart valve, because want his product to be associated with pigs.

Air pollution

Air transport

By air

Air Force

Air agreements

I'm still heating the air every time and cooling the air every time.

And some of these models so you take a bit of this cycle valve tube, you can put two matchsticks inside this, and you make a flexible joint.

And the fact that pig heart valves have lots of these on them is the reason that you can't transplant a pig heart valve into a person easily.