Results 41 to 50 of about 194,554 (238)

Slow modes in Keplerian disks

, 2000
Low-mass disks orbiting a massive body can support "slow" normal modes, in which the eigenfrequency is much less than the orbital frequency. Slow modes are lopsided, i.e., the azimuthal wavenumber m=1.
Miller R. H., Scott Tremaine
core   +2 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Phonons, electronic charge response and electron-phonon interaction in the high-temperature superconductors

, 2004
We investigate in the framework of linear response theory the complete phonon dispersion, phonon induced electronic charge response, electron-phonon interaction and dielectric and infrared properties of the high-temperature superconductors (HTSC's).
Alexandrov, Alexandrov, Ambrosch-Draxl, Andersen, Anderson, Aoki, Bellini, Bernhard, Bill, Bohnen, Braden, Bulut, Castro Neto, Chakravarty, Chuang, Chun, Chung, Cohen, Cohen, Damascelli, De Weert, Dopf, Efros, Egami, Emery, Falter, Falter, Falter, Falter, Falter, Falter, Falter, Falter, Falter, Falter, Falter, Falter, Falter, Feng, Fil, Franck, Henn, Henn, Hirsch, Hoffmann, Huang, Huang, Hussey, Hwang, Ino, Ishihara, Ishihara, Kakihana, Kaneshita, Kim, Kim, Kim, Kordyuk, Kotegawa, Kovaleva, Krakauer, Krakauer, Kulić, Lanzara, Lee, Litvinchuk, Longo, Maksimov, McQueeney, Nyhus, Pantoja, Petrov, Pickett, Pintschovius, Pintschovius, Pintschovius, Pintschovius, Pintschovius, Prade, Radtke, Rodriguez, Rösch, Savrasov, Schneider, Schnetgöke, Shen, Shen, Sidis, Singh, Singh, Tachiki, Tajima, Tamasaku, Thurston, Timusk, Trautmann, Tsvetkov, Uchida, Uchida, Wang, Weber, Williams, Yoshida, Zaanen, Zeyer, Zhou   +105 more
core   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Dynamic charge inhomogenity in cuprate superconductors

, 2010
The inelastic x-ray scattering spectrum for phonons of $\Delta_{1}$-symmetry including the CuO bond-stretching phonon dispersion is analyzed by a Lorentz fit in HgBa$_{2}$CuO$_{4}$ and Bi$_{2}$Sr$_{2}$CuO$_{6}$, respectively, using recently calculated ...
Bauer T, Braden M, Claus Falter, Harrison N, Pintschovius L, Pintschovius L, Taillefer L, Thomas Bauer, Zhao L   +8 more
core   +1 more source

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

Advanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

Toward Knowledge‐Based Workflows: A Semantic Approach to Atomistic Simulations for Mechanical and Thermodynamic Properties

Advanced Engineering Materials, EarlyView.
Knowledge‐based atomistic workflows are presented for mechanical and thermodynamic properties. By coupling modular simulations with ontology‐aligned metadata and provenance, Fe case studies on elastic behavior, defects, thermal properties, and Hall–Petch strengthening reveal how FAIR, queryable, and reusable simulation data can be generated. Mechanical
Abril Azócar Guzmán, Hoang‐Thien Luu, Sarath Menon, Tilmann Hickel, Nina Merkert, Stefan Sandfeld   +5 more
wiley   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

Advanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian, Anh Thi Le, Anh Thi Van Le, Dung My Thi Dang, Tin Chanh Duc Doan, Chien Mau Dang, Martin Bolduc   +6 more
wiley   +1 more source

The Adaptive TreePM: An Adaptive Resolution Code for Cosmological N-body Simulations

, 2009
Cosmological N-Body simulations are used for a variety of applications. Indeed progress in the study of large scale structures and galaxy formation would have been very limited without this tool.
Athanassoula, Bagla, Bagla, Bagla, Bagla, Bagla, Bagla, Bagla, Bagla, Bagla, Bagla, Barnes, Barnes, Bernardeau, Bertschinger, Binney, Binney, Bode, Bode, Bouchet, Bouchet, Bouchet, Brainerd, Brieu, Brieu, Couchman, Couchman, Davis, Dehnen, Dehnen, Dehnen, Diemand, Dolag, Dubinski, Dubinski, Ebisuzaki, Efstathiou, Efstathiou, El-Zant, Evrard, Evrard, Gingold, Gingold, Greengard, Gurbatov, Hamilton, Heitmann, Heitmann, Hernquist, Hernquist, Hernquist, Hernquist, Hockney, Hui, J. S. Bagla, Jain, Jernigan, Joyce, Kanekar, Kawai, Khandai, Klypin, Knebe, Kravtsov, Kuhlman, Little, Lucy, Ma, Macfarland, Makino, Makino, Makino, Makino, Makino, Matarrese, Melott, Merritt, Merz, Miller, Monaghan, Monaghan, Nishikanta Khandai, Nityananda, O'Shea, Padmanabhan, Padmanabhan, Padmanabhan, Peacock, Peacock, Peacock, Peebles, Peebles, Percival, Power, Prasad, Price, Romeo, Sahni, Salmon, Smith, Spergel, Splinter, Springel, Springel, Springel, Springel, Suisalu, Thacker, Theuns, Thiébaut, Wadsley, Xu, Yoshikawa, Zel'Dovich   +113 more
core   +3 more sources