Search Results - "Altobelli, Stephen"

Spatial selectivity by shaping the static field: sweet spots and spider legs by Conradi, Mark S., Altobelli, Stephen A.

“…There is increasing interest in spatially localized NMR, such as low-cost NMR devices for organ-specific measurements, possibly with single-sided magnets. One…”
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Simple through-plane spatial filter for 2D MRI projections by Fabich, Hilary T., Altobelli, Stephen A., Conradi, Mark S.

“…[Display omitted] •Method of removing slowly varying background signal from 2D projection images.•Relies on using a gradient pulse in the third (projected)…”
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Bioenergy sorghum stem growth regulation: intercalary meristem localization, development, and gene regulatory network analysis by Yu, Ka Man Jasmine, Oliver, Joel, McKinley, Brian, Weers, Brock, Fabich, Hilary T., Evetts, Nathan, Conradi, Mark S., Altobelli, Stephen A., Marshall‐Colon, Amy, Mullet, John

“…SUMMARY Bioenergy sorghum is a highly productive drought tolerant C4 grass that accumulates 80% of its harvestable biomass in approximately 4 m length stems…”
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Revisiting Anisotropic Diffusion of Carbon Dioxide in the Metal–Organic Framework Zn2(dobpdc) by Forse, Alexander C, Altobelli, Stephen A, Benders, Stefan, Conradi, Mark S, Reimer, Jeffrey A

“…The diffusion of gases confined in nanoporous materials underpins membrane and adsorption-based gas separations, yet relatively few measurements of diffusion…”
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Adiabatic sweep pulses for earth’s field NMR with a surface coil by Conradi, Mark S., Altobelli, Stephen A., Sowko, Nicholas J., Conradi, Susan H., Fukushima, Eiichi

“…[Display omitted] •Adiabatic sweep pulses that function well in low fields.•Means to avoid coming close to zero frequency.•Method of avoiding the ill-effects…”
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Coil extensions improve line shapes by removing field distortions by Conradi, Mark S., Altobelli, Stephen A., McDowell, Andrew F.

“…[Display omitted] •Simple method to reduce field distortions arising from the rf coil’s susceptibility.•Uses extensions of the rf coil that carry no rf current…”
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Pre-polarization fields for earth's field NMR: Fast discharge for use with short T 1 and large coils by Conradi, Mark S, Altobelli, Stephen A, Sowko, Nicholas J, Conradi, Susan H, Fukushima, Eiichi

“…The sensitivity of earth's field NMR is greatly increased by the use of a pre-polarizing field B . When used with short T samples, the field must be decreased…”
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Low-field magnetic resonance imaging of roots in intact clayey and silty soils by Bagnall, G. Cody, Koonjoo, Neha, Altobelli, Stephen A., Conradi, Mark S., Fukushima, Eiichi, Kuethe, Dean O., Mullet, John E., Neely, Haly, Rooney, William L., Stupic, Karl F., Weers, Brock, Zhu, Bo, Rosen, Matthew S., Morgan, Cristine L.S.

“…•Low Field magnetic resonance imaging can visualize roots in soils.•LF-MRI in does works well for imaging in high clay soils.•Soil water relaxation (T2) is…”
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NMR of petrochemical-type chemical reactions by Fabich, Hilary T., Nandi, Partha, Thomann, Hans, Altobelli, Stephen A., Bunnelle, William, Conradi, Mark S.

“…[Display omitted] •We report a simple technique for monitoring chemical reactions at high temperature and pressure with NMR.•Our technique uses a simple sealed…”
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Earth’s field NMR detection of oil under arctic ice–water suppression by Conradi, Mark S., Altobelli, Stephen A., Sowko, Nicholas J., Conradi, Susan H., Fukushima, Eiichi

“…[Display omitted] •Methods of detecting relatively small amount of trapped oil (layer 1 cm thick) in presence of much larger quantity of sea-water.•Use of a…”
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Fluid Typing: Efficient NMR Well-Logging with Interleaved CPMG Sequence at Different Frequencies by Wu, Baosong, Altobelli, Stephen A., Fukushima, Eiichi

“…Fluid typing in reservoirs is currently based on longitudinal relaxation and/or diffusion contrast method, the latter represented by the dual-TE method which…”
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Single-Sequence Multi-Slice NMR in Strong Gradient Magnetic Fields by Wu, Baosong, Altobelli, Stephen A., Fukushima, Eiichi

“…We describe and apply a scheme to obtain nuclear magnetic resonance (NMR) signals from multiple regions in space with a single pulse sequence in systems with…”
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Pre-polarization fields for earth’s field NMR: Fast discharge for use with short T1 and large coils by Conradi, Mark S., Altobelli, Stephen A., Sowko, Nicholas J., Conradi, Susan H., Fukushima, Eiichi

“…[Display omitted] •Built high power pre-polarization switch for earth’s field NMR with a large surface coil.•Suitable for use with short T1 fluids such as oil,…”
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Imaging of Her2-targeted magnetic nanoparticles for breast cancer detection: comparison of SQUID-detected magnetic relaxometry and MRI by Adolphi, Natalie L, Butler, Kimberly S, Lovato, Debbie M, Tessier, T E, Trujillo, Jason E, Hathaway, Helen J, Fegan, Danielle L, Monson, Todd C, Stevens, Tyler E, Huber, Dale L, Ramu, Jaivijay, Milne, Michelle L, Altobelli, Stephen A, Bryant, Howard C, Larson, Richard S, Flynn, Edward R

“…Both magnetic relaxometry and magnetic resonance imaging (MRI) can be used to detect and locate targeted magnetic nanoparticles, noninvasively and without…”
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Design and demonstration of a low‐field magnetic resonance imaging rhizotron for in‐field imaging of energy sorghum roots by Bagnall, G. Cody, Altobelli, Stephen A., Conradi, Mark S., Fabich, Hilary T., Fukushima, Eiichi, Koonjoo, Neha, Kuethe, Dean O., Rooney, William L., Stupic, Karl F., Sveinsson, Bragi, Weers, Brock, Rajan, Nithya, Rosen, Matthew S., Morgan, Cristine L. S.

“…Root phenotyping provides critical information to plant breeders for developing varieties with improved drought tolerance, greater root biomass, and greater…”
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Velocity of mist droplets and suspending gas imaged separately by Kuethe, Dean O., McBride, Amber, Altobelli, Stephen A.

“…[Display omitted] ► Velocity of gas and velocity of droplets in mist imaged separately. ► In upward pipe flow droplets clearly have slower velocity. ► In…”
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Failure of Rhodiola rosea to alter skeletal muscle phosphate kinetics in trained men by Walker, Thomas B, Altobelli, Stephen A, Caprihan, Arvind, Robergs, Robert A

“…Abstract Rhodiola rosea is an herbal supplement purported to improve resistance to stressors and to enhance physical performance, potentially by improving…”
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Instabilities during batch sedimentation in geometries containing obstacles: A numerical and experimental study by Rao, Rekha R., Mondy, Lisa A., Altobelli, Stephen A.

“…Batch sedimentation of non‐colloidal particle suspensions is studied with nuclear magnetic resonance flow visualization and continuum‐level numerical modelling…”
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CO2 rebreathing model in COPD: blood-to-gas equilibration by Loeppky, Jack A, Icenogle, Milton V, Caprihan, Arvind, Vidal Melo, Marcos F, Altobelli, Stephen A

“…Rebreathing in a closed system can be used to estimate mixed venous PCO2 (PvCO2) and cardiac output, but these estimates are affected by VA/Q heterogeneity…”
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NMRI study : axial migration of radially segregated core of granular mixtures in a horizontal rotating cylinder by NAKAGAWA, M, ALTOBELLI, S. A, CAPRIHAN, A, FUKUSHIMA, E

“…Three-dimensional structures of heterogeneous mixtures of granular particles were studied using nuclear magnetic resonance imaging (NMRI). A mixture of…”
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