Results 301 to 310 of about 693,970 (340)

Counting Cosmic Cycles: Past Big Crunches, Future Recurrence Limits, and the Age of the Quantum Memory Matrix Universe. [PDF]

Entropy (Basel)
Neukart F, Marx E, Vinokur V.
europepmc   +1 more source

Positive scalar curvature [PDF]

, 2017
openaire   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

Advanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi, Prayag Burad, Piash Bhowmik, Vishal Mahey, Yashwanth Bandari, Sougata Roy   +5 more
wiley   +1 more source

Effect of Ring Composition on the Statics and Dynamics of Block Copolyelectrolyte Catenanes. [PDF]

Macromolecules
Chiarantoni P, Tagliabue A, Mella M, Micheletti C.   +3 more
europepmc   +1 more source

Additive Manufacturing of Hot Work Tool Steel by Laser Powder Bed Fusion Utilizing Powder Mixtures Including Grinding Chips: Assessing Chemical Homogeneity and Achievable Hardness

Advanced Engineering Materials, EarlyView.
Grinding chips of high‐alloyed steel are prepared to be admixed to a starting powder mixture for laser powder bed fusion. A three‐stage preparation is performed, including washing in acetone, magnetic separation, and ball milling. The addition of 30% of grinding chips to the powder mixture allows the fabrication of dense samples.
Felix Großwendt, Chengsong Cui, Jonathan Lentz, Rainer Fechte‐Heinen, Sebastian Weber   +4 more
wiley   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

Advanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo, Chiara Morano, Leonardo Pagnotta, Luigi Bruno   +3 more
wiley   +1 more source

Densely packed membrane configurations. [PDF]

Meccanica
Heyden S, Ortiz M.
europepmc   +1 more source

A Positron Lifetime Study of Cooling and Natural Aging of Solutionized Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The process during cooling of Al–Mg and Al–Mg–Si alloys from the solutionizing temperature down to 20 °C is interrupted. These states are analyzed with positron lifetime spectroscopy to trace the processes during cooling. In different temperature ranges, two stages of vacancy loss and solute clustering are identified.
Zi Yang, Mengjie Li, John Banhart
wiley   +1 more source

Morphotype-based risk stratification in patients with patent foramen ovale using computational fluid dynamics. [PDF]

Sci Rep
Morelli F, Guadagno V, Mencarini T, Brambilla M, Fusini L, Bozzi S, Trabattoni D, Camera M, Redaelli A.   +8 more
europepmc   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

Advanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source