Search Results - "Lever, J. H"

Autonomous GPR Surveys using the Polar Rover Yeti by Lever, J. H., Delaney, A. J., Ray, L. E, Trautmann, E., Barna, L. A., Burzynski, A. M

“…The National Science Foundation operates stations on the ice sheets of Antarctica and Greenland to investigate Earth's climate history, life in extreme…”
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Paget’s disease of bone in Lancashire and arsenic pesticide in cotton mill wastewater: a speculative hypothesis by Lever, J.H

“…A 1974 survey of Paget’s disease of bone in 31 UK towns identified a cluster of six Lancashire former cotton mill towns with the highest prevalence rates of…”
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Dissolution of Composition B Detonation Residuals by Lever, J. H, Taylor, S, Perovich, L, Bjella, K, Packer, B

“…Composition B (Comp B) detonation residuals pose environmental concern to the U. S. Army because hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), a constituent,…”
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Revised solar-power budget for Cool Robot polar science campaigns by Lever, J.H., Ray, L.E.

“…Why develop polar robots? Logistics costs predominate polar-science budgets to maintain safe human operations in extreme environments. Robots could reduce this…”
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Accretion rate of cosmic spherules measured at the South Pole by Lever, James H, Taylor, Susan, Harvey, Ralph P

“…Micrometeorites are terrestrially collected, extraterrestrial particles smaller than about 1 mm, which account for most of the mass being accreted to the…”
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Sampling interplanetary dust from Antarctic air by Taylor, S., Lever, J. H., Burgess, K. D., Stroud, R. M., Brownlee, D. E., Nittler, L. R., Bardyn, A., Alexander, C. M. O’D., Farley, K. A., Treffkorn, J., Messenger, S., Wozniakiewicz, P. J.

“…We built a collector to filter interplanetary dust particles (IDPs) larger than 5 μm from the clean air at the Amundsen Scott South Pole station. Our sampling…”
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Assessing the Performance of a Sloped-Block Ice-Control Structure by Lever, J. H, Gooch, G

“…Hardwick, Vt., having experienced 10 ice-jam floods in 30 years , has not experienced one since construction of a sloped-block ice-control structure (ICS) in…”
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Solar power for an Antarctic rover by Lever, J. H., Ray, L. R., Streeter, A., Price, A.

“…Sensors mounted on mobile robots could serve a variety of science missions in Antarctica. Although weather conditions can be harsh, Antarctic snowfields offer…”
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Investigating the interactions between an atmosphere and an ejecta curtain: 2. Numerical experiments by Barnouin‐Jha, O. S., Schultz, P. H., Lever, J. H.

“…The locus of ejecta excavated during an impact generates a debris curtain that expands outward. In an atmosphere this advancing curtain acts like a…”
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Investigating the interactions between an atmosphere and an ejecta curtain: 1. Wind tunnel tests by Barnouin‐Jha, O. S., Schultz, P. H., Lever, J. H.

“…When an asteroid impacts a planetary surface, ejecta are excavated along ballistic trajectories whose loci define an inverted cone shape. The outward advancing…”
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AN EFFECT OF TURBULENCE ON FLUIDELASTIC INSTABILITY IN TUBE BUNDLES: A NONLINEAR ANALYSIS by RZENTKOWSKI, G., LEVER, J.H.

“…This paper is concerned with the behaviour of a tube bundle subjected to combined fluidelastic and turbulence excitation. Here, we formulate the fluidelastic…”
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Design of lightweight robots for over-snow mobility by Lever, J.H., Shoop, S.A., Bernhard, R.I.

“…Snowfields are challenging terrain for lightweight (<50 kg) ground robots. Deep sinkage, high snow-compaction resistance, traction loss while turning and…”
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Low-Cost Ice-Control Structure by Lever, J. H, Gooch, G, Tuthill, A, Clark, C

“…Communities located on small, northern rivers can experience severe breakup ice jams. While flood damages may be significant locally, they are often…”
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Design of Cazenovia Creek Ice Control Structure by Lever, James H, Gooch, Gordon

“…Cazenovia Creek, in Western New York, is the largest tributary of the Buffalo River. Breakup-ice jams form nearly every year, and ice-jam flooding occurs in…”
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Upstream Effects of Cazenovia Creek Ice-Control Structure by Lever, James H, Daly, Steven F

“…An ice-control structure (ICS) for Cazenovia Creek in West Seneca, N.Y., will arrest a breakup ice run and hold the resulting ice jam throughout typical…”
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Simulated rainfall-driven dissolution of TNT, Tritonal, Comp B and Octol particles by Taylor, Susan, Lever, James H., Fadden, Jennifer, Perron, Nancy, Packer, Bonnie

“…Live-fire military training can deposit millimeter-sized particles of high explosives (HE) on surface soils when rounds do not explode as intended…”
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Outdoor weathering and dissolution of TNT and Tritonal by Taylor, Susan, Lever, James H., Fadden, Jennifer, Perron, Nancy, Packer, Bonnie

“…Low-order detonations of military munitions scatter cm-sized chunks of high-explosives onto military range soils, where rainfall can dissolve and then…”
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Solar power for an antarctic rover: Eastern Snow Conference/Western Snow Conference by LEVER, J. H, RAY, L. R, STREETER, A, PRICE, A

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Autonomous robotic ground penetrating radar surveys of ice sheets; Using machine learning to identify hidden crevasses by Williams, R. M., Ray, L. E., Lever, J. H.

“…This paper presents methods to continue development of a completely autonomous robotic system employing ground penetrating radar imaging of the glacier…”
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Innovations in over-snow cargo transport by Weale, Jason, Lever, James H.

“…The United States Antarctic Program (USAP) is developing tractor-sled trains to haul heavy cargo 1600 km from McMurdo Station to South Pole Station. In 2003,…”
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