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Perpendicular magnetic recording, a technology for data recording on hard disk PMR446 , a license-free public walkie-talkie protocol in the European Union and the United Kingdom Professional mobile radio or "private mobile radio", VHF & UHF radio networks used by operators such as taxis, utilities and emergency services
Perpendicular recording (or perpendicular magnetic recording, PMR), also known as conventional magnetic recording (CMR), is a technology for data recording on magnetic media, particularly hard disks. It was first proven advantageous in 1976 by Shun-ichi Iwasaki , then professor of the Tohoku University in Japan, and first commercially ...
The ISTE Standards, formerly known as the National Educational Technology Standards (NETS), are standards for the use of technology in teaching and learning (technology integration). [1] They are published by the International Society for Technology in Education (ISTE), a nonprofit membership association for educators focused on educational ...
Hard drives use magnetic memory to store giga- and terabytes of data in computers. Information is written to and read from the storage medium as it moves past devices called read-and-write heads that operate very close (often tens of nanometers) over the magnetic surface.
A 900 MHz NMR instrument with a 21.1 T magnet at HWB-NMR, Birmingham, UK Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique based on re-orientation of atomic nuclei with non-zero nuclear spins in an external magnetic field.
Educational technology is an inclusive term for both the material tools and processes, and the theoretical foundations for supporting learning and teaching. Educational technology is not restricted to advanced technology but is anything that enhances classroom learning in the utilization of blended, face-to-face, or online learning. [12]
Additionally, the deuterium signal may be used to accurately define 0 ppm as the resonant frequency of the lock solvent and the difference between the lock solvent and 0 ppm (TMS) are well known. Proton NMR spectra of most organic compounds are characterized by chemical shifts in the range +14 to -4 ppm and by spin–spin coupling between protons.
A dPMR Memorandum of Understanding (MoU) group was created in 2007 by a group of companies who wished to support the latest digital PMR radio technology known as dPMR. The group currently includes radio and silicon manufacturers, protocol, software and systems developers.