Results 21 to 30 of about 3,070,377 (288)

Embroidered Coils for Magnetic Resonance Sensors [PDF]

, 2013
Magnetic resonance imaging is a widely used technique for medical and materials imaging. Even though the objects being imaged are often irregularly shaped, suitable coils permitting the measurement of the radio-frequency signal in these systems are ...
Newton, Michael, Dias, Tilak, Glen McHale, Tilak Dias, Michael Newton, Morris, Robert, McHale, Glen, Robert Morris, Morris, RH, Newton, MI, Dias, T, McHale, G   +11 more
core   +1 more source

The Radiofrequency NMR Spectra of Lithium Salts in Water; Reevaluation of Nuclear Magnetic Moments for 6Li and 7Li Nuclei

Magnetochemistry, 2018
LiCl and LiNO3 water solutions in the presence of small amounts of 3-helium have been investigated by means of multinuclear resonance spectroscopy. The resulting concentration dependences of the 3He, 6,7Li+, 14NO3− and 35Cl− resonance radiofrequencies ...
Włodzimierz Makulski
doaj   +1 more source

Influence of stereoelectronic interactions on the 13C NMR chemical shift in iodine-containing molecules

Journal of Magnetic Resonance Open, 2022
Methyl substitution in ortho position causes a deshielding of 6–7 ppm on the 13C NMR chemical shift of the own methyl group and the carbon nucleus bonded to iodine atom (ipso) in iodobenzene-like molecules.
Renan V. Viesser, Cláudio F. Tormena
doaj   +1 more source

Characterization of magnetic field noise in the ARIADNE source mass rotor

Physical Review Research, 2022
The Axion Resonant Interaction Detection Experiment (ARIADNE) is a nuclear-magnetic-resonance-based experiment that will search for novel axion-induced spin-dependent interactions between an unpolarized source mass rotor and spin-polarized ^{3}He nuclei ...
Nancy Aggarwal, A. Schnabel, J. Voigt, Alex Brown, J. C. Long, S. Knappe-Grueneberg, W. Kilian, A. Fang, A. A. Geraci, A. Kapitulnik, D. Kim, Y. Kim, I. Lee, Y. H. Lee, C. Y. Liu, C. Lohmeyer, A. Reid, Y. Semertzidis, Y. Shin, J. Shortino, E. Smith, W. M. Snow, E. Weisman, H. Zhang   +23 more
doaj   +1 more source

QED Theory of the Nuclear Magnetic Shielding in Hydrogenlike Ions [PDF]

Physical Review Letters, 2011
The shielding of the nuclear magnetic moment by the bound electron in hydrogen-like ions is calculated ab initio with inclusion of relativistic, nuclear, and quantum electrodynamics (QED) effects. The QED correction is evaluated to all orders in the nuclear binding strength parameter and, independently, to the first order in the expansion in this ...
Yerokhin, V., Pachucki, K., Keitel, C., Harman, Z.   +3 more
openaire   +4 more sources

Study on the effect of neutron shielding design on tritium breeding based on water-cooled ceramic blanket for CFETR

AIP Advances, 2023
The Chinese Fusion Engineering Test Reactor (CFETR) is a magnetic confinement fusion reactor independently designed and developed by China, which is based on the ITER design experience.
Jie Li, Hang Li, Muquan Wu, Xiang Zhu, Peiguang Yan, Xiaodong Lin, Jie Zhang, Xiang Gao   +7 more
doaj   +1 more source

Nuclear Magnetic Shieldings of Stacked Aromatic and Antiaromatic Molecules [PDF]

Journal of Chemical Theory and Computation, 2017
Nuclear magnetic shieldings have been calculated at the density functional theory (DFT) level for stacks of benzene, hexadehydro[12]annulene, dodecadehydro[18]annulene, and hexabenzocoronene. The magnetic shieldings due to the ring currents in the adjacent molecules have been estimated by calculating nucleus independent molecular shieldings for the ...
Dage Sundholm, Markus Rauhalahti, Nergiz Özcan, Raúl Mera-Adasme, Jörg Kussmann, Arne Luenser, Christian Ochsenfeld   +6 more
openaire   +3 more sources

Towards Elucidating Structure–Spectra Relationships in Rhamnogalacturonan II: Computational Protocols for Accurate 13C and 1H Shifts for Apiose and Its Borate Esters

Frontiers in Molecular Biosciences, 2022
Apiose is a naturally occurring, uncommon branched-chain pentose found in plant cell walls as part of the complex polysaccharide Rhamnogalacturonan II (RG-II).
Vivek S. Bharadwaj, Luke P. Westawker, Michael F. Crowley   +2 more
doaj   +1 more source

DFT STUDY OF THE TUBULAR SIZE EFFECTS ON THE PROPERTIES OF ZIGZAG BORON NITRIDE NANOTUBES

Studia Universitatis Babes-Bolyai Chemia, 2017
Density functional theory (DFT) studies were performed on representative zigzag models of boron nitride nanotubes (BNNTs) with different structural sizes. To achieve minimized-energy structures and their properties, first, optimization calculations were
Fatemeh SHEKHOLIA LAVASANI, Abolghasem SHAMELI, Ebrahim BALALI   +2 more
doaj   +1 more source

Computational and Experimental ¹H-NMR Study of Hydrated Mg-Based Minerals

Molecules, 2020
Magnesium oxide (MgO) can convert to different magnesium-containing compounds depending on exposure and environmental conditions. Many MgO-based phases contain hydrated species allowing 1H-nuclear magnetic resonance (NMR) spectroscopy to be used in the ...
Eric G. Sorte, Jessica M. Rimsza, Todd M. Alam   +2 more
doaj   +1 more source