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The Role of Breccia Lenses in Regolith Generation From the Formation of Small, Simple Craters: Application to the Apollo 15 Landing Site 

Hirabayashi, Masatoshi; Howl, Bryan A.; Fassett, Caleb I.; Soderblom, Jason M.; Minton, David A.; Melosh, H. J.; 0000-0002-1821-5689 (2020-05-28)
Impact cratering is likely a primary agent of regolith generation on airless bodies. Regolith production via impact cratering has long been a key topic of study since the Apollo era. The evolution of regolith due to impact ...

Sea level rise and inundation of island interiors: Assessing impacts of lake formation and evaporation on water resources in arid climates 

Gulley, J.D.; Mayer, A.S.; Martin, J.B.; Bedekar, V. (2020-04-01)
Coasts of many low-lying islands will be inundated should sea level rise by 1 m by 2100 as projected, thereby decreasing water resources through aquifer salinization. A lesser known impact occurs if rising sea level elevates ...

A Solution of Rigid Perfectly Plastic Deep Spherical Indentation based on Slip Line Theory 

Jackson, Robert; Ghaednia, Hamid; Pope, Sara (2015-11-16)
During indentation it is often important to determine the relationship between the average pressure and the yield strength. This work uses slip line theory to determine this relationship for the case of a rigid sphere ...

Structural analysis of asteroid Ryugu 

Hirabayashi, Masatoshi (2019-02-28)
This document describes the input files of ANSYS structural analyses for Ryugu rotating at spin periods of 3.5 hr and 3.75 hr.

Trust region methods for estimation of a complex exponential decay model in MRI with a single-shot or multi-shot trajectory (in review) 

Hu, Chenxi; Reeves, Stanley (2015-05-05)
Joint estimation of spin density, R2* decay and off-resonance frequency maps is very useful in many magnetic resonance imaging (MRI) applications. The standard multi-echo approach can achieve high accuracy but requires a ...

Unconfined Compression Test 

Elton, David; Elton, Dave (2014-02-06)
The unconfined compression test. Collect approcimately 1200g of soil passing through the No. 4 Sieve. Add water and mix soil sample thoroughly. Weigh empty Harvard Miniature Mold and place layer of soil in mold. Compact ...

UNSATURATED-ZONE WATER 

Molz, Fred; Davidson, James; Tollner, Ernest (2022-10-11)