Results 111 to 120 of about 22,113 (299)

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Broadband polarization-asymmetric directional thermal emission enabled by opposite phase-gradient metasurfaces

PhotoniX
Thermal emission from natural materials is typically broadband and weakly structured in angle and polarization, limiting its utility for customized infrared functionalities.
Zhaojian Zhang, Lanting Li, Tuojiang Tang, Fei Zhang, Anbin Du, Mingbo Pu, Tongtong Kang, Yinghui Guo, Junbo Yang, Xiangang Luo   +9 more
doaj   +1 more source

Modeling Dislocation Cutting of γ′ Precipitates in Ni‐Base Superalloys: Linking Atomistic and Dislocation Dynamics Simulations

Advanced Engineering Materials, EarlyView.
Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé, Siwen Gao, Marc Fivel, Anxin Ma, Daria Smirnova, Sriram Anand, Arun Prakash, Julien Guénolé, Alexander Hartmaier, Erik Bitzek   +9 more
wiley   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Simultaneous Noise Suppression and Deconvolution with Best [PDF]

, 2007
In this paper, we proposed a method for simultaneous noise suppression and deconvolution. The signal estimation and denoising problem was converted into a problem of model selection by using minimum description length(MDL) criterion to choose the best ...
Bases And Minimum, Shuo Sheng
core  

Fuglede`s conjecture fails in dimension 4 [PDF]

, 2005
In this note we modify a recent example of Tao and give an example of a set Omega subset of R-4 such that L-2(Omega) admits an orthonormal basis of exponentials {1/vertical bar Omega vertical bar 1/2 e(2 pi i )}(xi epsilon Lambda) for some set Lambda ...
Matolcsi, Máté
core   +1 more source

Object Tracking via 2DPCA and l2-Regularization

Journal of Electrical and Computer Engineering, 2016
We present a fast and robust object tracking algorithm by using 2DPCA and l2-regularization in a Bayesian inference framework. Firstly, we model the challenging appearance of the tracked object using 2DPCA bases, which exploit the strength of subspace ...
Haijun Wang, Hongjuan Ge, Shengyan Zhang
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Orthogonal bases and their application in signal processing [PDF]

, 2015
This work is concentrates on finding basic properties of some orthogonal polynomials like a definition, weight function, orthogonality interval, recurrence relations, number of zeros and diferential eguations which they were suited on.
Kárský, Vilém
core  

Orthonormal bases of extreme quantumness [PDF]

Quantum
Spin anticoherent states acquired recently a lot of attention as the most "quantum" states. Some coherent and anticoherent spin states are known as optimal quantum rotosensors.
Marcin Rudziński, Adam Burchardt, Karol Życzkowski   +2 more
doaj   +1 more source