Search Results - "Spaleta, J"

Strontium isotopes reveal diverse life history variations, migration patterns, and habitat use for Broad Whitefish (Coregonus nasus) in Arctic, Alaska by Leppi, Jason C, Rinella, Daniel J, Wipfli, Mark S, Brown, Randy J, Spaleta, Karen J, Whitman, Matthew S

“…Conservation of Arctic fish species is challenging partly due to our limited ability to track fish through time and space, which constrains our understanding…”
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Temporal and spatial resolved SuperDARN line of sight velocity measurements corrected for plasma index of refraction using Bayesian inference by Spaleta, J., Bristow, W. A., Klein, J.

“…Recent work by Gillies et al. (2012, 2009, 2010) has sought an explanation for the SuperDARN line‐of‐sight velocity underestimate of ionospheric plasma…”
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First observations of ionospheric irregularities and flows over the south geomagnetic pole from the Super Dual Auroral Radar Network (SuperDARN) HF radar at McMurdo Station, Antarctica by Bristow, W. A., Spaleta, J., Parris, R. T.

“…Observations from the first 100 days of operation of the Super Dual Auroral Radar Network (SuperDARN) radar at McMurdo Station, Antarctica are presented. The…”
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Enhanced energy confinement and performance in a low-recycling tokamak by Majeski, R, Doerner, R, Gray, T, Kaita, R, Maingi, R, Mansfield, D, Spaleta, J, Soukhanovskii, V, Timberlake, J, Zakharov, L

“…Extensive lithium wall coatings and liquid lithium plasma-limiting surfaces reduce recycling, with dramatic improvements in Ohmic plasma discharges in the…”
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An investigation of the characteristics of the convection reversal boundary under southward interplanetary magnetic field by Bristow, W. A., Spaleta, J.

“…The characteristics of the Convection Reversal Boundary (CRB) as determined from Super Dual Auroral Radar Network (SuperDARN) observations of convection are…”
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Observations of the relationship between ionospheric central polar cap and dayside throat convection velocities, and solar wind/IMF driving by Bristow, W. A., Amata, E., Spaleta, J., Marcucci, M. F.

“…Convection observations from the Southern Hemisphere Super Dual Auroral Radar Network are presented and examined for their relationship to solar wind and…”
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Attenuation of Pb and Sb in shooting range soils by Fe amendments by Barker, Amanda J., Douglas, Thomas A., Spaleta, Karen J., Trainor, Tom P.

“…Lead (Pb) and antimony (Sb) contamination pose a major environmental risk at firing ranges and threaten land sustainability. Methods for the stabilization of…”
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Lifetime mobility of an Arctic woolly mammoth by Wooller, Matthew J., Bataille, Clement, Druckenmiller, Patrick, Erickson, Gregory M., Groves, Pamela, Haubenstock, Norma, Howe, Timothy, Irrgeher, Johanna, Mann, Daniel, Moon, Katherine, Potter, Ben A., Prohaska, Thomas, Rasic, Jeffrey, Reuther, Joshua, Shapiro, Beth, Spaleta, Karen J., Willis, Amy D.

“…A mammoth’s life Fossils have long given us glimpses of the life that came before us, but these glimpses are generally static. They tell us a bit about species…”
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First incoherent scatter radar observations of ionospheric heating on the second electron gyro-harmonic by Kosch, M.J., Gustavsson, B., Heinselman, C., Pedersen, T., Rietveld, M.T., Spaleta, J., Wong, A., Wang, W., Mutiso, C., Bristow, B., Hughes, J.

“…We report first results from a unique experiment performed at the HIPAS ionospheric modification facility in conjunction with the Poker Flat incoherent scatter…”
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Rapid, non-destructive analysis of calcium and strontium in eggshells by WD-XRF by Śliwiński, Maciej G., Latty, Christopher J., Spaleta, Karen J., Taylor, Robert J., Severin, Kenneth P.

“…We developed a simple method of analyzing the strontium (Sr) and calcium (Ca) content of intact eggshell samples in support of a broader study of how dietary…”
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Controlled optimization of mode conversion from electron Bernstein waves to extraordinary mode in magnetized plasma by Jones, B, Efthimion, P C, Taylor, G, Munsat, T, Wilson, J R, Hosea, J C, Kaita, R, Majeski, R, Maingi, R, Shiraiwa, S, Spaleta, J, Ram, A K

“…In the CDX-U spherical torus, agreement between radiation temperature and Thomson scattering electron temperature profiles indicates approximately 100%…”
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Evaluating the Utility of Principal Component Analysis on EDS X‐Ray Maps to Determine Bulk Mineralogy by Spaleta, Karen J., Hayes, Sarah M., Newberry, Rainer J., Piatak, Nadine M.

“…Due to advances in EDS technology, electron microscopy techniques have become an important tool to determine the relative abundance of mineral phases. However,…”
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Extremely low recycling and high power density handling in CDX-U lithium experiments by Kaita, R., Majeski, R., Doerner, R., Gray, T., Kugel, H., Lynch, T., Maingi, R., Mansfield, D., Soukhanovskii, V., Spaleta, J., Timberlake, J., Zakharov, L.

“…The mission of the Current Drive eXperiment-Upgrade (CDX-U) spherical tokamak is to investigate lithium as a plasma-facing component (PFC). The latest CDX-U…”
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Testing of liquid lithium limiters in CDX-U by Majeski, R., Kaita, R., Boaz, M., Efthimion, P., Gray, T., Jones, B., Hoffman, D., Kugel, H., Menard, J., Munsat, T., Post-Zwicker, A., Spaleta, J., Taylor, G., Timberlake, J., Woolley, R., Zakharov, L., Finkenthal, M., Stutman, D., Antar, G., Doerner, R., Luckhardt, S., Seraydarian, R., Maingi, R., Maiorano, M., Smith, S., Rodgers, D., Soukhanovskii, V.

“…Part of the development of liquid metals as a first wall or divertor for reactor applications must involve the investigation of plasma–liquid metal…”
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CDX-U operation with a large area liquid lithium limiter by Majeski, R, Boaz, M, Hoffman, D, Jones, B, Kaita, R, Kugel, H, Munsat, T, Spaleta, J, Soukhanovskii, V, Timberlake, J, Zakharov, L, Antar, G, Doerner, R, Luckhardt, S, Conn, R.W, Finkenthal, M, Stutman, D, Maingi, R, Ulrickson, M

“…The current drive experiment-upgrade (CDX-U) at the Princeton Plasma Physics Laboratory has begun experiments with a fully toroidal liquid lithium limiter…”
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A female woolly mammoth's lifetime movements end in an ancient Alaskan hunter-gatherer camp by Rowe, Audrey G, Bataille, Clement P, Baleka, Sina, Combs, Evelynn A, Crass, Barbara A, Fisher, Daniel C, Ghosh, Sambit, Holmes, Charles E, Krasinski, Kathryn E, Lanoë, François, Murchie, Tyler J, Poinar, Hendrik, Potter, Ben, Rasic, Jeffrey T, Reuther, Joshua, Smith, Gerad M, Spaleta, Karen J, Wygal, Brian T, Wooller, Matthew J

“…Woolly mammoths in mainland Alaska overlapped with the region's first people for at least a millennium. However, it is unclear how mammoths used the space…”
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Effects of large area liquid lithium limiters on spherical torus plasmas by Kaita, R., Majeski, R., Boaz, M., Efthimion, P., Gettelfinger, G., Gray, T., Hoffman, D., Jardin, S., Kugel, H., Marfuta, P., Munsat, T., Neumeyer, C., Raftopoulos, S., Soukhanovskii, V., Spaleta, J., Taylor, G., Timberlake, J., Woolley, R., Zakharov, L., Finkenthal, M., Stutman, D., Delgado-Aparicio, L., Seraydarian, R.P., Antar, G., Doerner, R., Luckhardt, S., Baldwin, M., Conn, R.W., Maingi, R., Menon, M., Causey, R., Buchenauer, D., Ulrickson, M., Jones, B., Rodgers, D.

“…Use of a large-area liquid lithium surface as a limiter has significantly improved the plasma performance in the Current Drive Experiment-Upgrade (CDX-U) at…”
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Plasma–lithium interaction in the CDX-U spherical torus by Antar, G.Y., Doerner, R.P., Kaita, R., Majeski, R., Spaleta, J., Munsat, T., Jones, B., Maingi, R., Soukhanovskii, V., Kugel, H., Timberlake, J., Krasheninnikov, S.I., Luckhardt, S.C., Conn, R.W.

“…Results on the interaction between plasma in the current drive experiment-upgrade (CDX-U) spherical torus and a liquid lithium limiter are reported. It is…”
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Making low concentration in-house pressed pellet trace element standards for carbonate rock analyses by WD-XRF by Śliwiński, Maciej G., Spaleta, Karen J., Meyer, Franz J., Hutton, Eric M., Newberry, Rainer J., Trainor, Thomas P., Severin, Kenneth P., Whalen, Michael T.

“…We describe a simple method for making in-house, low concentration (0–100ppm) pressed pellet standards for analyzing Ni, Cu, Mo, V and U in carbonate…”
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Spherical torus plasma interactions with large-area liquid lithium surfaces in CDX-U by Kaita, R, Majeski, R, Boaz, M, Efthimion, P, Jones, B, Hoffman, D, Kugel, H, Menard, J, Munsat, T, Post-Zwicker, A, Soukhanovskii, V, Spaleta, J, Taylor, G, Timberlake, J, Woolley, R, Zakharov, L, Finkenthal, M, Stutman, D, Antar, G, Doerner, R, Luckhardt, S, Maingi, R, Maiorano, M, Smith, S

“…The current drive experiment-upgrade (CDX-U) device at the Princeton Plasma Physics Laboratory (PPPL) is a spherical torus (ST) dedicated to the exploration of…”
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