electromagnetic

Superconducting magnet attracts molecular research

... intrinsic property known as "spin" and within the electromagnetic field created by the magnet, the frequency of the ...in solution. The average hospital-based MRI has an electromagnetic field of about 7 Tesla, while this superconducting magnet is more than twice as powerful, measuring ...

T-rays: New imaging technology spotlighted by American Chemical Society

...ays are based on the terahertz (THz) region of the electromagnetic spectrum that is between infrared light and microwave radiation. Until recently, researchers have had great difficulty harnessing the potential of the THz region for lack of suitable radiation sources. Advanced materials research has provided new and...

Terahertz imaging may reduce breast cancer surgeries

...used light waves in a newly explored region of the electromagnetic spectrum--the terahertz region--to examine excised...between the infrared and microwave portions of the electromagnetic spectrum. The researchers found that by placing a slice of excised breast tissue on a special quartz...

Researchers develop portable 'vein finder' for faster, more accurate injections

...he Doppler effect is a phenomenon that occurs when electromagnetic and sound waves interact with a moving object, altering wavelengths and frequency. For example, a police radar gun sends microwave signals to a moving car, and when signals bounce back, the change in their frequency provides a measurement used to det...

Rare Chinese frogs communicate by means of ultrasonic sound

...em vastly different from our own," Feng said. "The electromagnetic sense in fishes and homing pigeons, polarized light vision in ants, chemical sensing of pheromones in insects and rodents, echolocation by ultrasound in bats and dolphins, are just a few examples. "That frogs can communicate with ultrasound adds to ...

Polymers show promise for lab-on-a-chip technology

...al muscles" that can convert thermal, chemical and electromagnetic stimuli into mechanical energy, Elias said. LCPs are polymers made from liquid crystalline molecules, which are well-known for their use in display applications, such as laptop computer screens, where they are used for their unique optical properties...

Cell phone emissions excite the brain cortex

...ion people in the world use cell phones which emit electromagnetic fields (EMFs). Though many studies have looked at ...S) to investigate brain function under exposure to electromagnetic fields from a common type of cell phone. Their study reports the effects of EMF exposure on brain ph...

T-ray breakthrough could make detecting disease far easier

A breakthrough in the harnessing of 'T-rays' - electromagnetic terahertz waves - which could dramatically improv...ap between the microwave and infrared parts of the electromagnetic spectrum. Materials interact with radiation at T-ray frequencies in different ways than with rad...