The system, which is made of non-magnetic materials, has a range of 350m.
The non-magnetic diesel engines are similar to those used in the US Navy's Avenger Class Mine Countermeasures Vessels.
Patients were randomly assigned to wear a standard strength magnetic bracelet, a weak magnetic bracelet or a bracelet with non-magnetic steel washers.
Other nano-scale structures under investigation include, for instance, non-magnetic carbon nanotubes.
The case enclosing the device must of course be made of non-magnetic material such as brass, aluminum, special stainless-steel alloys, or plastic.
The weights - made of zinc and plated with 24-karat gold - are non-magnetic and durable.
The tubing has to be a good conductor of electricity, and non-magnetic.
Sandown Class minehunters are built almost entirely of non-magnetic materials and are designed to resist high shock levels.
Here the magnetic portion of the tape coating is spread thinly over a simultaneously coated non-magnetic underlayer.
The design of the class was led by shipyard John I. Thornycroft, and drew on lessons learnt in the Korean War; the ships were built using extensive quantities of non-magnetic materials.
Wrought beryllium copper tools were almost as durable as similarly designed steel tools, but were non-sparking and non-magnetic.
It is highly resistant to corrosion and is non-magnetic.
It is also non-magnetic, resists wear, and forms a green patina which makes it resistant to corrosion.
Recording magnetometers flown over large areas could distinguish rapidly between magnetic and non-magnetic rock groups.
Computer hard drives and other advanced devices depend on layered stacks of magnetic and non-magnetic materials, but researchers don't fully understand how the materials work at the microscopic level.
The researchers randomly assigned patients to wear a bracelet containing either a strong magnet, a weak magnet or non-magnetic washers.
And the objects, which were non-magnetic, were enclosed in a glass case.
It's highly non-corrosive, non-magnetic, and many times stronger than conventional metals.
Each subject was fitted with non-magnetic earphones and a device to deliver smells, called an olfactometer, developed by Sobel and coauthor Brad Johnson, a bioengineering graduate student.