Results 121 to 130 of about 2,355,367 (321)

On the nature of space-time, cosmological inflation, and expansion of the universe

open access: yes, 2018
In this article, we propose to investigate the mechanism of cosmological inflation and expansion through the physical properties of space-time. By taking the bulk modulus $K=1.64 \times 10^{109}\text{N}\cdot\text{m}^{-2}$, we show that the dark energy ...
Beau, Mathieu R.
core  

Large‐Scale Interlaboratory Study Along the Entire Process Chain of Laser Powder Bed Fusion: Bridging Variability, Standards, and Optimization across Metals and Polymers

open access: yesAdvanced Engineering Materials, Volume 27, Issue 14, July 2025.
What happens when 32 labs join forces to study nanoparticle‐modified powders? A data‐driven journey through laser powder bed fusion—now openly accessible for the entire additive manufacturing community—is studied. Laser powder bed fusion is a cornerstone technology for additive manufacturing (AM) of metals and polymers, yet challenges in achieving ...
Ihsan Murat Kuşoğlu   +73 more
wiley   +1 more source

Laser Additive Manufacturing of Oxide‐Dispersion‐Strengthened Steels: A Simulation‐Based Comparison Between Powder Bed Fusion and Direct Energy Deposition

open access: yesAdvanced Engineering Materials, Volume 27, Issue 14, July 2025.
Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech   +6 more
wiley   +1 more source

Mechanical and Microstructural Effects of ZrO2 Nanoparticles in Fe20Cr Oxide Dispersion‐Strengthened Alloys Processed by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, Volume 27, Issue 14, July 2025.
The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling   +12 more
wiley   +1 more source

Song and poetic text Bella ciao in a mosaic of languages, cultures and arts

open access: yesRussian Journal of Linguistics
The development of textology and intertextuality opens up new perspectives in the interpretation of famous texts, including the song of the Italian Resistance participants Bella ciao .
Olga S. Chesnokova   +2 more
doaj   +1 more source

Process Parameter and Dimension‐Dependent Mn Vaporization During Laser Powder Bed Fusion of an Fe–Mi–Si–Cr‐Based Shape Memory Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
The functional properties of Fe–Mn–Si–Cr‐based shape memory alloys are influenced, among other things, by their chemical composition. Here, the vaporization of Mn, the most volatile element of the alloy, is investigated. It is shown that the process parameters make noninterchangeable contributions to the vaporization and that vaporization differences ...
Maylin Homfeldt, Anastasiya Toenjes
wiley   +1 more source

Interpreting Texts and Their Characters

open access: yes
Research in Digital Humanities calls for computational systems to document, compare, and analyze interpretations of cultural artifacts such as literary texts. These systems are intended to support scholars, critics, and students by facilitating access to existing analyses of texts, identifying similarities and divergences between interpretations, and ...
Emilio M. SANFILIPPO   +3 more
openaire   +2 more sources

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