Results 251 to 260 of about 1,431,790 (342)

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

Advanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör, Moritz Grünewald, Kevin Popp, Ihsan Murat Kusoglu, Stephan Barcikowski, Stan Gann, Thomas Schuffenhauer, Martin Bastian, Claas Bierwisch, Johannes Rudloff   +9 more
wiley   +1 more source

Effects of the COVID-19 Pandemic on the Performance of Marathon Runners. [PDF]

Transl Sports Med
Lluch J, Martínez-Giménez F, Abad F, Garrido Martínez J.   +3 more
europepmc   +1 more source

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source

Intersectionality of Sexual Orientation, Race, and Ethnicity in Medical School Attrition.

JAMA Netw Open
Nguyen M, Boatright D, Sánchez JP, Hajduk AM, Venkataraman S, O'Connell M, Aviles A, Rajbhandari P, Chaudhry SI.   +8 more
europepmc   +1 more source

The trend of the race; a study of present tendencies in the biological development of civilized mankind, by Samuel J. Holmes.

, 1921
S. J. Holmes
openalex   +2 more sources

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

Advanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

Race, diabetes, and cognitive function: a cross-sectional analysis of intersecting disparities in the NHANES cohort. [PDF]

Front Neurosci
Wang L, Zhou Q, Yin Y, Zhang W, Wang C, Lin G, Wu D, Wang Z.   +7 more
europepmc   +1 more source

The trend of the race; a study of present tendencies in the biological development of civilized mankind

, 1921
S. J. Holmes
openalex   +2 more sources

Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed FeCr(Si)N Stainless Steel

Advanced Engineering Materials, EarlyView.
The alloying element Nitrogen enhances stainless steel strength, corrosion resistance, and stabilizes austenite. This study develops austenitic FeCr(Si)N steel production via powder metallurgy. Fe20Cr and Si3N4 are hot isostatically pressed, creating an austenitic microstructure.
Louis Becker, Felix Radtke, Jonathan Lentz, Santiago Benito, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source