Search Results - "Gradl, R."

Technology advancements for channel wall nozzle manufacturing in liquid rocket engines by Gradl, Paul R., Protz, Christopher S.

“…A regeneratively-cooled or dump-cooled nozzle is a critical component for expansion of hot gases to enable high temperature and performance in liquid rocket…”
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Dynamic In Vivo Chest X-ray Dark-Field Imaging in Mice by Gradl, R., Morgan, K. S., Dierolf, M., Jud, C., Hehn, L., Gunther, B., Moller, W., Kutschke, D., Yang, L., Stoeger, T., Pfeiffer, D., Gleich, B., Achterhold, K., Schmid, O., Pfeiffer, F.

“…X-ray grating interferometry is a powerful emerging tool in biomedical imaging, providing access to three complementary image modalities. In addition to the…”
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The impact of skeletal muscle disuse on distinct echo intensity bands: A retrospective analysis by Logeson, Zachary S, MacLennan, Rob J, Abad, Gerard-Kyle B, Methven, Johnathon M, Gradl, Molly R, Pinto, Matheus D, Pinto, Ronei S, Stock, Matt S

“…Echo intensity (EI) is a novel tool for assessing muscle quality. EI has traditionally been reported as the mean of the pixel histogram, with 0 and 255…”
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Tensile Properties of Additively Manufactured C-18150 Copper Alloys by Zeng, Congyuan, Wen, Hao, Bernard, Benjamin C., Ding, Huan, Raush, Jonathan R., Gradl, Paul R., Khonsari, Michael, Guo, Shengmin

“…The effect of aging processes on the tensile properties of C-18150 copper alloy samples, made by laser powder-bed-fusion additive manufacturing (AM) process…”
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Machine-Learning-Based Thermal Conductivity Prediction for Additively Manufactured Alloys by Bhandari, Uttam, Chen, Yehong, Ding, Huan, Zeng, Congyuan, Emanet, Selami, Gradl, Paul R., Guo, Shengmin

“…Thermal conductivity (TC) is greatly influenced by the working temperature, microstructures, thermal processing (heat treatment) history and the composition of…”
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Application of optical measurement techniques during various stages of pregnancy by Gradl, Paul R.

“…Optical measurement techniques have evolved since the mid-2000's due to the advancement in computer processing and digital camera sensors. These techniques…”
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Survival of Salmonella during Drying of Fresh Ginger Root (Zingiber officinale) and Storage of Ground Ginger by Gradl, Dana R, Sun, Lingxiang, Larkin, Emily L, Chirtel, Stuart J, Keller, Susanne E

“…The survival of Salmonella on fresh ginger root (Zingiber officinale) during drying was examined using both a laboratory oven at 51 and 60°C with two different…”
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Comprehensive and Comparative Heat Treatment of Additively Manufactured Inconel 625 Alloy and Corresponding Microstructures and Mechanical Properties by Luna, Victoria, Trujillo, Leslie, Gamon, Ariel, Arrieta, Edel, Murr, Lawrence E., Wicker, Ryan B., Katsarelis, Colton, Gradl, Paul R., Medina, Francisco

“…This study examines and compares the microstructures, Vickers microindentation hardness, and mechanical properties for additively manufactured (AM) samples…”
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Ptychographic X-ray nanotomography quantifies mineral distributions in human dentine by Zanette, I., Enders, B., Dierolf, M., Thibault, P., Gradl, R., Diaz, A., Guizar-Sicairos, M., Menzel, A., Pfeiffer, F., Zaslansky, P.

“…Bones are bio-composites with biologically tunable mechanical properties, where a polymer matrix of nanofibrillar collagen is reinforced by apatite mineral…”
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Temperature dependent tensile behavior of additively manufactured HAYNES® 214: A comparative study between laser powder bed fusion and laser powder directed energy deposition by Baig, Shaharyar, Gradl, Paul R., Shao, Shuai, Shamsaei, Nima

“…In this study, the tensile behaviors of laser powder bed fused (L-PBF) and laser powder directed energy deposited (LP-DED) HAYNES® 214 were investigated at a…”
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Surface texture characterization for thin-wall NASA HR-1 Fe–Ni–Cr alloy using laser powder directed energy deposition (LP-DED) by Gradl, Paul R., Cervone, Angelo, Gill, Eberhard

“…Additive Manufacturing (AM) offers new design and manufacturing opportunities of thin-wall microchannel heat exchangers for aerospace and industrial…”
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Additively manufactured Haynes 282: effect of unimodal vs. bimodal γʹ- microstructure on mechanical properties by Ghiaasiaan, Reza, Ahmad, Nabeel, Gradl, Paul R., Shao, Shuai, Shamsaei, Nima

“…This study examines the effects of lower-than-nominal heat treatment (HT) temperatures and cooling rates —possible during the treatment of larger components—…”
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Revealing deformation mechanisms in additively manufactured Alloy 718: Cryogenic to elevated temperatures by Ahmad, Nabeel, Ghiaasiaan, Reza, Gradl, Paul R., Shao, Shuai, Shamsaei, Nima

“…Tensile behavior of Alloy 718, fabricated through laser powder directed energy deposition, was examined over a wide temperature range (−195, 25, 200, 425, 650,…”
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Microstructure and hardness comparison of as-built inconel 625 alloy following various additive manufacturing processes by Gamon, Ariel, Arrieta, Edel, Gradl, Paul R., Katsarelis, Colton, Murr, Lawrence E., Wicker, Ryan B., Medina, Francisco

“…Experimental examples of as-built microstructures and associated microindentation hardnesses (HV) for a wide range of metal additive manufacturing (AM)…”
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Microstructure and Deformation Behavior of Additively Manufactured 17–4 Stainless Steel: Laser Powder Bed Fusion vs. Laser Powder Directed Energy Deposition by Nezhadfar, P. D., Gradl, Paul R., Shao, Shuai, Shamsaei, Nima

“…This study aims to compare the microstructure of 17–4 PH stainless steel (SS) manufactured via laser powder bed fusion (L-PBF) and laser powder directed energy…”
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A 3D Printable Alloy Designed for Extreme Environments by Smith, Timothy M., Kantzos, Christopher A., Zarkevich, Nikolai A., Harder, Bryan J., Heczko, Milan, Gradl, Paul R., Thompson, Aaron C., Mills, Michael J., Gabb, Timothy P., Lawson, John W.

“…Multiprincipal-element alloys are an enabling class of materials owing to their impressive mechanical and oxidation-resistant properties, especially in extreme…”
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Superior tensile properties of Hastelloy X enabled by additive manufacturing by Ghiaasiaan, Reza, Muhammad, Muztahid, Gradl, Paul R., Shao, Shuai, Shamsaei, Nima

“…This study reports the superior tensile properties of laser powder bed fused (L-PBF) Hastelloy X compared to wrought, exhibiting enhanced yield strength and…”
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Wire Based Directed Energy Deposition of JBK-75 by Schneider, J. A., Puerto, G., Walker, E., Montgomery, B. T., Gradl, P. R., Walker, B., Santangelo, M., Thompson, S.

“…Applications and adoption of metal additive manufacturing (AM) are increasing for fabrication of low volume, complex components with novel materials, as well…”
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Characterization and Rationalization of Microstructural Evolution in GRCop-84 Processed by Laser-Powder Bed Fusion (L-PBF) by Minneci, Robert P., Haines, Michael P., Gradl, Paul R., Ellis, David L., Lass, Eric A., Bunn, Jeffrey R., Choo, Hahn, Jones, Zachary C., Babu, Sudarsanam S., Rawn, Claudia J.

“…Prismatic geometries of GRCop-84 [Cu-8Cr-4Nb (at. pct)] were built with laser-powder bed fusion (L-PBF) process. The samples were sectioned parallel or…”
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Differential mesocorticolimbic responses to palatable food in binge eating prone and binge eating resistant female rats by Sinclair, Elaine B, Culbert, Kristen M, Gradl, Dana R, Richardson, Kimberlei A, Klump, Kelly L, Sisk, Cheryl L

“…Abstract Binge eating is a key symptom of many eating disorders (e.g. binge eating disorder, bulimia nervosa, anorexia nervosa binge/purge type), yet the…”
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