Results 101 to 110 of about 1,464,780 (333)

Did the Pseudo-Sphere Universe have a Beginning?

open access: yes, 1993
42 pages (plus 8 figures available from the author as ordinary copies), plain TeX, NCL-93/TP ...
openaire   +2 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Pseudo-coordinations in Faroese [PDF]

open access: yes, 2012
In this article we describe the system of pseudo-coordinations in Faroese—coordinations in the verbal system in which the second conjunct appears in fact to be subordinated to the first—in the light of previous discussions of this phenomenon in ...
Caroline Heycock   +3 more
core   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm   +3 more
wiley   +1 more source

Envelopes of One-Parameter Family of Frontals Related to Two Classes of Legendrian Dualities

open access: yesAxioms
Giving the definitions of one-parameter family of frontals in lightcone and one-parameter family of spacelike Legendrian curves in Δ2 and Δ3, and further using the variability condition and the tangency condition, the definitions of envelopes of these ...
Pengfei Zhang, Zhigang Wang, Yudi Zhang
doaj   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Dn 401 / De disciplina scholarium [PDF]

open access: yes
Pseudo-Boethius, Anicius Manlius Severinus. Mit Kommentar von Pseudo-Thomas
Pseudo-Boethius, Anicius Manlius Severinus
core  

Synthesis of low-cost porous ceramic microspheres from waste gangue for dye adsorption

open access: yesJournal of Advanced Ceramics, 2017
Low-cost porous ceramic microspheres from waste gangue were prepared by simple spray drying and subsequent calcination. Effects of calcination temperature on phase and microstructure evolution, specific surface area, pore structure, and dye adsorption ...
Shu Yan   +7 more
doaj   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter   +9 more
wiley   +1 more source

Sentenças pseudo-clivadas do português brasileiro [PDF]

open access: yes, 2009
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em LinguisticaEsta dissertação tem como objetivo descrever e analisar, com base na Teoria Gerativa, as sentenças pseudo-clivadas
Resenes, Mariana Santos de
core  

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