First posted February 28, 2023 For additional information, contact: Director, Oklahoma-Texas Water Science CenterU.S. Geological Survey1505 Ferguson LaneAustin, TX 78754–4501Contact Pubs Warehouse In 2021, the U.S. Survey (USGS), in cooperation with Bandera County River Authority and Groundwater District Texas Development Board, studied floods to produce a library of flood-inundation maps for S...

The complex solidification dynamics and thermal cycling during Selective Laser Melting process is expected to result in non-equilibrium material characteristics. There is an essential need for characterization techniques which are critical towards the estimation of anisotropies. The current investigation is targeted towards establishing tensile testing methodologies and their relation to differ...

High strain-rate compression experiments were performed with a split-Hopkinson pressure bar (SHPB) at 500–4000/s on cylindrical samples of a Zr-based bulk metallic glass (LM-1) in both the fully amorphous and annealed conditions. The effects of changes to the specimen geometry (i.e., L/D ratio) and the material heat treatment [i.e., annealing versus amorphous (as-received)], on the peak stress,...

This study was conducted to determine whether novel experimental low-shrinkage dimethacrylate co-monomers could provide low polymerization shrinkage composites without sacrifice to degree of conversion, and mechanical properties of the composites. Experimental composites were prepared by mixing 28.6 wt% of bisphenol-A-glycidyl dimethacrylate based resin matrix (bis-GMA) with various weight-frac...

INTRODUCTION: The biological response of bones to a mechanical stimulus depends on signal transduction pathways that are not fully elucidated. A wide variety of animal models have been developed in order to examine these signal transduction pathways, one of which is the ulnar compression model. We have used the rat ulna model to study woven bone formation (bone adaptation) in response to fatigu...

N.W. WEISBRODT, C.C. HUG, Jr., S.K. SCHMIEGE and P. BASS, Effects of nicotine and tyramine on contractile activity of the colon, European J. Pharmacol. 12 (1970) 310-319. Contractile activity of the descending colon of the anesthetized dog was monitored with strain gage force transducers. Nicotine and tyramine caused primarily a relaxation of the circular and longitudinal muscle. A secondary st...

Three techniques for measuring dynamic stress intensity factor time histories of dynamically loaded stationary modeI cracks are compared as applied to dynamically loaded pre-cracked 6Al–4V titanium alloy specimens. The three techniques are crack opening displacement (COD), dynamic strain gage measurement, and coherent gradient sensing (CGS). The stress intensity factor histories are inferred fr...