Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Rosen, M. S."'
Autor:
Aptekar, J. W., Cassidy, M. C., Johnson, A. C., Barton, R. A., Lee, M. Y., Ogier, A. C., Vo, C., Anahtar, M. N., Ren, Y., Bhatia, S. N., Ramanathan, C., Cory, D. G., Hill, A. L., Mair, R. W., Rosen, M. S., Walsworth, R. L., Marcus, C. M.
Publikováno v:
ACS Nano 3, 4003 (2009)
Silicon nanoparticles are experimentally investigated as a potential hyperpolarized, targetable MRI imaging agent. Nuclear T_1 times at room temperature for a variety of Si nanoparticles are found to be remarkably long (10^2 to 10^4 s) - roughly cons
Externí odkaz:
http://arxiv.org/abs/0902.0269
The human lung and its functions are extremely sensitive to orientation and posture, and debate continues as to the role of gravity and the surrounding anatomy in determining lung function and heterogeneity of perfusion and ventilation. However, stud
Externí odkaz:
http://arxiv.org/abs/0707.3455
We report experimental studies of the effect of interstitial gas on mass-density-segregation in a vertically-vibrated mixture of equal-sized bronze and glass spheres. Sufficiently strong vibration in the presence of interstitial gas induces vertical
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506085
In this work we present measurements of permeability, effective porosity and tortuosity on a variety of rock samples using NMR/MRI of thermal and laser-polarized gas. Permeability and effective porosity are measured simultaneously using MRI to monito
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407710
We report initial NMR studies of gas dynamics in a particle bed fluidized by laser-polarized xenon (129Xe) gas. We have made preliminary measurements of two important characteristics: gas exchange between the bubble and emulsion phases; and the gas v
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407708
Autor:
Mair, R. W., Hrovat, M. I., Patz, S., Rosen, M. S., Ruset, I. C., Topulos, G. P., Tsai, L. L., Butler, J. P., Hersman, F. W., Walsworth, R. L.
The human lung and its functions are extremely sensitive to gravity, however the conventional high-field magnets used for most laser-polarized 3He MRI of the human lung restrict subjects to lying horizontally. Imaging of human lungs using inhaled las
Externí odkaz:
http://arxiv.org/abs/physics/0403090
We report simultaneous measurements of the permeability and effective porosity of oil-reservoir rock cores using one-dimensional NMR imaging of the penetrating flow of laser-polarized xenon gas. The permeability result agrees well with industry stand
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312543
Autor:
Canè, F., Bear, D., Phillips, D. F., Rosen, M. S., Smallwood, C. L., Stoner, R. E., Walsworth, R. L., Kostelecký, V. Alan
Publikováno v:
Phys.Rev.Lett.93:230801,2004
A search for an annual variation of a daily sidereal modulation of the frequency difference between co-located ${}^{129}$Xe and ${}^{3}$He Zeeman masers sets a stringent limit on boost-dependent Lorentz and CPT violation involving the neutron, consis
Externí odkaz:
http://arxiv.org/abs/physics/0309070
Publikováno v:
Magnetic Resonance in Chemistry, 40, S29-S39 (2002)
We report initial NMR studies of i) xenon gas diffusion in model heterogeneous porous media, and ii) continuous flow laser-polarized xenon gas. Both areas utilize the Pulsed Gradient Spin Echo techniques in the gas-phase, with the aim of obtaining mo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211179