The influence of the rf field inhomogeneity on the NQR nutation spectra of spin / = 3/2 nuclei in powder samples is investigated. To eliminate the rf field inhomogeneity effects, a method of reconstruction of the NQR nutation spectra, based on finding the deconvolution of the Fourier nutation spectrum with a function of the rf field distribution, is used. The method is successfully demonstrated...

The sodium ion-translocating NADH:quinone oxidoreductase (Na(+)-NQR) from the human pathogen Vibrio cholerae is a respiratory membrane protein complex that couples the oxidation of NADH to the transport of Na(+) across the bacterial membrane. The Na(+)-NQR comprises the six subunits NqrABCDEF, but the stoichiometry and arrangement of these subunits are unknown. Redox-active cofactors are FAD an...

The effects of off-resonance irradiation in nutation NQR experiments are demonstrated both experimentally and theoretically. The theoretical description of the off-resonance effects in 2D nutation NQR spectroscopy is given, and general exact formulas for the asymmetry parameter are obtained. It is shown that the outcome of the off-resonance nutation experiments depends on the data acquisition p...

A one-dimensional chemistry model is applied to study the stable hydrogen (D) and stable oxygen isotope (17O, 18O) composition of water vapour in stratosphere and mesosphere. In the troposphere, this isotope composition is determined by “physical” fractionation effects, that are phase changes (e.g. during cloud formation), diffusion processes (e.g. during evaporation from the ocean), and mixing...

We present synthesis and $^{75}$As-nuclear quadrupole resonance (NQR) measurements for the noncentrosymmetric superconductor CaPtAs with a superconducting transition temperature $T_c$ of $\sim 1.5$ K. discovered two different forms during synthesis; one is high-temperature tetragonal form that was previously reported, other low-temperature consistent orthorhombic structure CaPtP. According to $...

2014 Incoherent neutron quasi-elastic scattering (NQES), 14N nuclear quadrupole resonance (NQR) and deuterium nuclear magnetic resonance (DMR) data in the smectic VI, smectic H, smectic C, smectic A and nematic phases of terephtal-bis-butyl-aniline (TBBA) are analysed consistently in terms of simple rotational models allowing both orientational order around the long molecular axis and fluctuati...

Abstract. The isotopic composition of nitrogen and oxygen in dioxide (NO2) potentially carries a wealth information about the dynamics oxides (NOx = nitric oxide (NO) + NO2) chemistry atmosphere. While isotopes NO2 are subtle indicators NOx emissions chemistry, believed to reflect only O3 / VOC chemical regime different atmospheric environments. In order access this potential tracer tropospheri...

Nuclear quadrupole resonance (NQR) is a solid-state radio frequency spectroscopic technique that can be used to detect the presence of quadrupolar nuclei, that are prevalent in many narcotics, drugs, and explosive materials. Similar to other modern spectroscopic techniques, such as nuclear magnetic resonance, and Raman spectroscopy, NQR also relies heavily on statistical signal processing syste...