Results 121 to 130 of about 699,213 (384)

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

Revisiting the Fundamental Metallicity Relation with Observation and Simulation

The Astrophysical Journal Letters
The gas-phase metallicity of galaxies is regulated by multiple astrophysical processes, which makes it a crucial diagnostic of galaxy formation and evolution.
Chengyu Ma, Kai Wang, Enci Wang, Yingjie Peng, Haochen Jiang, Haoran Yu, Cheng Jia, Zeyu Chen, Haixin Li, Xu Kong   +9 more
doaj   +1 more source

Photometric metallicity map of the Large Magellanic Cloud [PDF]

, 2015
We have estimated a metallicity map of the Large Magellanic Cloud (LMC) using the Magellanic Cloud Photometric Survey (MCPS) and Optical Gravitational Lensing Experiment (OGLE III) photometric data.
S. Choudhury, A. Subramaniam, A. Cole
semanticscholar   +1 more source

Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings

Advanced Engineering Materials, EarlyView.
Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira, Pietro Cazelatto Bortolini, André Luiz Vidilli, Paulo Wilmar Barbosa Marques, Jéferson Aparecido Moreto, Claudio Shyinti Kiminami, Walter José Botta, Claudemiro Bolfarini, Guilherme Yuuki Koga   +8 more
wiley   +1 more source

A Possible Correlation between Metallicity and Near-IR Color for Late-M and L Dwarfs

The Astrophysical Journal
We examine the relationship between metallicity and J − K color for 64 benchmark late-M and L dwarfs, all of which are wide companions to higher-mass stars, and six of which are new discoveries.
Ruihan Zhang, Michael C. Liu, Zhoujian Zhang   +2 more
doaj   +1 more source

Ultra-faint dwarf galaxies as a test of early enrichment and metallicity-dependent star formation

, 2011
The tight relation of star formation with molecular gas indicated by observations and assumed in recent models implies that the efficiency with which galaxies convert their gas into stars depends on gas metallicity.
Andrey V. Kravtsov, Aykutalp, Bigiel, Bigiel, Bolatto, Brooks, Carrera, Chen, Dalcanton, Gnedin, Gnedin, Gnedin, Gnedin, Helmi, Kalirai, Karlsson, Kirby, Komatsu, Konstantinos Tassis, Kravtsov, Kravtsov, Krumholz, Krumholz, Krumholz, Krumholz, Kuhlen, Lee, Leroy, Nickolay Y. Gnedin, Ostriker, Prochaska, Rafelski, Rudd, Simon, Simon, Spaans, Tassis, Tassis, Tremonti, Wise, Wolfire, Wong, Wong, Zemp   +43 more
core   +1 more source

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

Advanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim, Antônio Rogério de Souza, Tatiana Bendo, Aloisio Nelmo Klein, Rodrigo Perito Cardoso   +4 more
wiley   +1 more source

Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons

npj Computational Materials, 2017
Half-metallicity: Strain-induced spin-splitting in graphene nanoribbons Inhomogenous strain could cause the charge carriers in zigzag graphene nanoribbons to become fully spin-polarized.
Dong-Bo Zhang, Su-Huai Wei
doaj   +1 more source

Impacts of Radial Mixing on the Galactic Thick and Thin Disks

, 2017
Using N-body simulations of the Galactic disks, we qualitatively study how the metallicity distributions of the thick and thin disk stars are modified by radial mixing induced by the bar and spiral arms.
Kawata, Daisuke
core   +1 more source

Direct observation of half-metallicity in the Heusler compound Co2MnSi

Nature Communications, 2014
Ferromagnetic thin films of Heusler compounds are highly relevant for spintronic applications owing to their predicted half-metallicity, that is, 100% spin polarization at the Fermi energy. However, experimental evidence for this property is scarce. Here
M. Jourdan, J. Minár, J. Braun, Alexander Kronenberg, S. Chadov, B. Balke, A. Gloskovskii, M. Kolbe, H. Elmers, G. Schönhense, H. Ebert, C. Felser, M. Kläui   +12 more
semanticscholar   +1 more source