PD40-04HOW DOES MAGNETIC FIELD STRENGTH IN MULTIPARAMETRIC MAGNETIC RESONANCE IMAGING AFFECT SIGNIFICANT PROSTATE CANCER DETECTION? : A MULTICENTER PROPENSITY SCORE–MATCHED ANALYSISdoi:10.1097/JU.0000000000002601.04Sunao ShojiKumpei TakahashiSoichiro Yuzuriha...
How to measure magnetic field strength of a magnet. How to create a magnetic field without electricity. How do we know Earth has a magnetic field? How can a magnetic field be produced around a wire? How does the outer core produce the Earth's magnetic field?
The size of this voltage is directly proportional to the size of the electric current and the strength of the magnetic field. Which way do they go? How do you figure out which way the electrons will move? You can work out the direction of the Lorentz force with Fleming's left-hand ...
Domain walls, or borders between the neighboring domains, physically move to accommodate domain growth. In a strong magnetic field, some walls disappear entirely. The resulting magnet's strength depends on the amount of force used to move the domains. Its permanence, or retentivity, depends on h...
The strength of a magnet in an MRI system is rated using a unit of measure known as a tesla. Another unit of measure commonly used with magnets is the gauss (1 tesla = 10,000 gauss). The magnets in use today in MRI systems create a magnetic field of 1.5-tesla to 7.0-tesla, or ...
Increasing the number of windings is probably the easiest way to increase the strength of an electromagnet. Since mmf = nI, doubling the number of windings doubles the strength of the magnet. It's fine to wrap the wires in layers around the solenoid core. The magnetic field is unaffected ...
An unusual reduction in the strength of the Earth’s magnetic field between 591 and 565 million years ago coincided with a significant increase in the oxygen levels in the atmosphere and oceans, according to a paper published today (May 2) inCommunications Earth & Environment. The authors propos...
The tighter the wire wound around the rod, or core, is, the more loops the current makes around it, increasing the strength of the magnetic field. Core Material In addition to the tightness of the winding wire, the material used for the core can also control the strength of the magnet....
If the car slows down, the magnet inside the cup rotates more slowly, which reduces the strength of the magnetic field, resulting in smaller eddy currents and less deflection of the needle. When a car is stopped, the hairspring holds the needle at zero. The Electronic Speedometer An ...
Nernst equation, we find that a relatively small magnetic field (approximately 1 T) with a large gradient (up to 1 GT/m) can significantly change the membrane potential of the cell and thus have a significant impact on not only the properties and biological functionality of cells but ...