Results 171 to 180 of about 930,497 (337)

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

Comparison of Ocular Outcomes in Two 14-Day Bed Rest Studies [PDF]

Reports of astronauts' visual changes have raised concern about ocular health during long-duration spaceflight. Some of these findings include globe flattening with hyperopic shifts, choroidal folds, optic disc edema, retinal nerve fiber layer (RNFL ...
Cromwell, Ronita L., Tabbi, G., Vizzeri, G., Yarbough, P. O., Zanello, S. B.   +4 more
core   +2 more sources

Effects of Bed Rest on Physical Performance in Athletes: A Systematic and Narrative Review. [PDF]

Sports Med, 2023
Spiering BA, Weakley J, Mujika I.
europepmc   +1 more source

Pyridoxic acid excretion during low vitamin B-6 intake, total fasting, and bed rest

, 1995
SP Coburn, K G Thampy, HW Lane, PS Conn, P J Ziegler, DL Costill, J. Dennis Mahuren, W. J. Fink, DR Pearson, W E Schaltenbrand   +9 more
openalex   +1 more source

Effectiveness of bed rest after mild traumatic brain injury: a randomised trial of no versus six days of bed rest [PDF]

, 2002
Jelle R. de Kruijk
openalex   +1 more source

Influence of Heat Treatment on Microstructure and Mechanical Properties at Elevated Temperatures of Nonweldable Ni‐Based Alloy Printed by Fused Filament Fabrication

Advanced Engineering Materials, EarlyView.
The fused filament‐fabricated MAR‐M247 alloy without hot isostatic pressing shows the lowest porosity of 4%. Heat treatment at 1220 °C produces coarse precipitates and carbides. Specimens heat‐treated at 1220 °C exhibit higher tensile strength (683 MPa) and elongation (10%) at room temperature.
Haneen Daoud, Ying Zheng, Agata Kulig, Natalja Agarkov, Esma Mese, Wolfgang Hofmann, Peter Würtele, Uwe Glatzel   +7 more
wiley   +1 more source

Stretch Reflex as a Simple Measure to Evaluate the Efficacy of Potential Flight Countermeasures Using the Bed Rest Environment [PDF]

INTRODUCTION: Spaceflight is acknowledged to have significant effects on the major postural muscles. However, it has been difficult to separate the effects of ascending somatosensory changes caused by the unloading of these muscles during flight from ...
Cerisano, J. M., Fisher, E. A., Harm, D. L., Kofman, I. S., Reschke, M. F.   +4 more
core   +1 more source

Assessment of venous pressure by compression sonography of the internal jugular vein during 3 days of bed rest. [PDF]

Exp Physiol, 2023
Hearon CM, Peters K, Dias KA, Macnamara JP, Marshall JET, Campain J, Martin D, Marshal-Goebel K, Levine BD.   +8 more
europepmc   +1 more source

EXERCISE THERMOREGULATION AFTER 13-DAY BED REST

, 1999
S. M.C. Lee, W. Jon Williams, J. E. Greenleaf, Susan Schneider   +3 more
openalex   +1 more source

On the Deformation Behavior of Metastable CrMnNi Steels Processed by Directed Energy Deposition in Different Temperature Regimes

Advanced Engineering Materials, EarlyView.
In the present study, metastable CrMnNi steels with varying chemical compositions and a concomitantly altered stacking fault energy are processed via directed energy deposition and afterwards tested via tensile tests at different temperatures. The present study shows the influence of the manufacturing process on the elemental deformation mechanisms for
Julia Richter, Thomas Wegener, Florian Stredak, Gert Bartzsch, Steffen Scherbring, Javad Mola, Olena Volkova, Stefan Böhm, Thomas Niendorf   +8 more
wiley   +1 more source