Terms: Microhertz Spectrometers (0), microhertz (16,700), nanohertz (1,730), millihertz (23,800), picohertz (646), femtohertz (505),
Boolean: spectrometer +microhertz (32), spectrometer +millihertz (479),
Boolean: fourier +millihertz (1,030), fourier +microhertz (82), fourier +nanohertz (15), fourier +picohertz (7), fourier +femtohertz (0),
Terms: spectral sensitivity (373,000), spectral resolution (1,100,000),
The concept: Low field magnetic resonance frequencies are in the hertz to gigahertz range. But the important features are extracted based on frequency resolution, not frequency counting. A millihertz resolution process at 1 megahertz is as good as a hertz resolution process at 1 gigahertz.
Terms: low field magnetic resonance (2,640), low field nmr (14,200), zero field magnetic resonance (97), zero field nmr (1,150), earth field nmr (1,660), earth's field nmr (1,460), zero field esr (57),
Boolean: "zero field" +nmr (33,000), "zero field" +esr (12,400), "zero field" +resolution (70,700), "zero field" +nmr +"high resolution" (8,840),
Boolean: nmr +ppb (67,800), nmr +ppm (699,000), nmr +ppt (151,000), nmr +"per billion" (15,200), nmr +"per trillion" (2,200),
Terms: dipole-dipole (361,000), spin-spin (1,020,000), chemical shift (838,000), chemical shifts (707,000),
Terms: nmr resolution (956), high resolution nmr (195,000),
Caltech Authors - Zero field NMR and NQR
Terms: ex situ nmr (1,030), ex situ nuclear magnetic resonance (37), portable mri (14,700), ex situ mr (8),
Boolean: "low field" +squid (18,700), ultralow +squid (2,320),
Alexander Pines - Research Group -
Ex-Situ High Resolution NMR and MRI
Low-Field NMR/MRI Using Rotating-Frame Gradient Fields
Using Pulse Sequences to Achieve High -Resolution NMR/MRI with Simplified Hardware
Boolean: "phased array" +"magnetic resonance" (123,000), "phased array" +nmr (23,100), "phased arrays" +"magnetic resonance" (3,030), "phased arrays" +nmr (1,350),