## Abstract A theoretical investigation was conducted to explore boiling characteristics of magnetic fluids, including the effects of a magnetic field on the surface characteristics of magnetic fluids, the significance of body force and the stress induced. Emphasis was placed on aspects of nucleati
Heating of cardiovascular stents in intense radiofrequency magnetic fields
โ Scribed by Kenneth R. Foster; Robert Goldberg; Craig Bonsignore
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 78 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0197-8462
No coin nor oath required. For personal study only.
โฆ Synopsis
We consider the heating of a metal stent in an alternating magnetic field from an induction heating furnace. An approximate theoretical analysis is conducted to estimate the magnetic field strength needed to produce substantial temperature increases. Experiments of stent heating in industrial furnaces are reported, which confirm the model. The results show that magnetic fields inside inductance furnaces are capable of significantly heating stents. However, the fields fall off very quickly with distance and in most locations outside the heating coil, field levels are far too small to produce significant heating. The ANSI/IEEE C95.1
๐ SIMILAR VOLUMES
## Abstract A technique of creating localized heating by implanting metallic materials in the brain and inserting the head into a radiofrequency electromagnetic field is described. The heating properties of various materials for implantation were studied, and the two best materials were carbon stee
This work was undertaken to compare the behavior of Friend erythroleukemia cells in a solenoid, where the magnetic field was 70 mT at 50 Hz (plus 45 mT DC of Earth) with that of the same cells in a magnetically shielded room, where the magnetic field was attenuated to 20 nT DC and 2.5 pT AC. The con
We have plotted data from a number of studies on the range of radiofrequency (RF) field levels associated with a variety of environmental and occupational sources. Field intensity is shown in units of volts/meter (V/m) for electric field strength and amps/meter (A/m) for magnetic field strength. Dut
Nutation echoes are generated by radiofrequency (RF) pulses with an inhomogeneous amplitude, B 1 โซุโฌ B 1 (r), in inhomogeneous magnetic fields, B 0 โซุโฌ B 0 (r). The two gradients of strengths G 1 and G 0 , respectively, must be aligned in parallel for a maximum echo signal. After two RF pulses, two