Now showing items 1-10 of 43
An Auxiliary RF Channel with Convenient Phase Control for NMR Spectrometers
(Elsevier, 1993-09)
Improved 13C-Resolved HSQC-NOESY Spectra in H2O, Using Pulsed Field Gradients
(Elsevier, 1993-10)
Homo- and Heteronuclear Multiple-Quantum Filters for Measurement of NMR Isotope Shifts
(Elsevier, 1994-03)
The measurement of NMR isotope shifts as mechanistic probes can be complicated by mixtures of isotopomers. Homo- and heteronuclear NMR techniques based on multiple-quantum filtration are presented and shown to be a useful ...
Amplification of 1 ps pulses at 1.053 [mu]m in a Ti:Al2O3 regenerative amplifier
(Elsevier, 1991-07-01)
We demonstrate the operation of a Ti:Al2O3 regenerative amplifier tunable around 1 [mu]m. Gains up to 108 at 1.053 [mu]m without any spectral narrowing are obtained. This amplifier is designed for use in terawatt picosecond ...
A Flexible Spline Model of the Spin Echo with Applications to Estimation of the Spin-Spin Relaxation Time
(Elsevier, 1994-12)
Under weak mathematical assumptions, the distortion due to B0 inhomogeneity is shown to take the form of a characteristic function, which is the Fourier transform of a probability distribution, A model of the spin echo is ...
In vivo 31 P MRS evaluation of ganciclovir toxicity in C6 gliomas stably expressing the herpes simplex thymidine kinase gene
(John Wiley & Sons, Ltd., 1996-12)
Phosphorus MRS was evaluated as a monitor of tumour therapeutic response to the herpes simplex virus thymidine kinase suicide gene therapy paradigm. In vivo 31 P spectra were obtained from subcutaneous rat C6 gliomas ...
D-band (110-170 GHz) InP gunn devices
(Elsevier, 1993-11)
This paper reports on the development of InP Gunn sources for operation in the D-band (110-170 GHz). n+-n-n+ structures with flat doping as well as graded doping profiles have been considered. Oscillations were obtained ...
Chirped pulse amplification in an erbium-doped fiber oscillator/ erbium-doped fiber amplifier system
(Elsevier, 1994-03-15)
Chirped pulse amplification in erbium fibers is demonstrated. A passively mode locked erbium-doped fiber laser source provides the seed pulses for an erbium-doped fiber amplifier. The system produces femtosecond pulses at ...