نتایج جستجو برای: mounds

تعداد نتایج: 1248  

2009
John P. Leonard James W. McCamy Byungha Shin Michael J. Aziz

Using a dual Molecular Beam Epitaxy (MBE)-Pulsed Laser Deposition (PLD) Ultra-High Vacuum chamber, we have conducted the first experiments under identical thermal, background, and surface preparation conditions to compare Ge(001) homoepitaxial growth morphology in PLD and MBE. We find that in PLD with low kinetic energy and in MBE the film morphology evolves in a similar fashion: initially irre...

Journal: :Remote Sensing 2016
Timo Balz Gino Caspari Bihong Fu Mingsheng Liao

The Altai Mountains are a heritage-rich archaeological landscape with monuments in almost every valley. Modern nation state borders dissect the region and limit archaeological landscape analysis to intra-national areas of interest. Remote sensing can help to overcome these limitations. Due to its high precision, Synthetic Aperture Radar (SAR) data can be a very useful tool for supporting archae...

Journal: :Eos, Transactions American Geophysical Union 2006

2007
Cynthia B. Phillips Devon M. Burr Ross A. Beyer

[1] Slope streaks on Mars represent a currently active geological process. Various theories for slope streak formation have suggested that slope streaks form by disturbing only a thin surface veneer, or by staining of the surface, preserving pre-existing topography within the streak. Theories also vary as to whether the formation mechanism requires the presence of water or another liquid. We pr...

2004
F. Darboux J. M. Reichert C. Huang

The effect of soil surface roughness on runoff and sediment production is an area not yet fully quantified. Current erosion prediction models, such as the Revised Universal Soil Loss Equation, predicts a reduced erosion from an increased soil roughness, without considering the functionality associated with different roughness forms. In this research, we used a mechanistic approach in which soil...

2017
Garry Webb

The efficacy of bistrifluron termite bait was evaluated using in-ground bait stations placed around Coptotermes lacteus mounds in south-eastern Australia during late summer and autumn (late February to late May 2012). Four in-ground bait stations containing timber billets were placed around each of twenty mounds. Once sufficient numbers of in-ground stations were infested by termites, mounds we...

2011
M. Söffker K. A. Sloman

The abundance and behaviour of fish on and around coral reefs at Twin Mounds and Giant Mounds, carbonate mounds located on the continental shelf off Ireland (600–1100 m), were studied using two Remotely Operated Vehicle (ROV) dives. We recorded 30 fish taxa on the dives, together with three species of Scleractinia (Lophelia pertusa, Madrepora oculata and Desmophyllum cristagalli) and a diverse ...

2002
O. Malis J. D. Brock R. L. Headrick Min-Su Yi J. M. Pomeroy

We report time-resolved grazing incidence small-angle x-ray scattering and atomic force microscope studies of the evolution of the surface morphology of the Co~0001! surface during low-energy Ar ion sputtering. At temperatures greater than 573 K, the surface is smooth, erosion proceeding in either a layer-by-layer mode or a step retraction mode. In contrast, at temperatures below 573 K, the sur...

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