Results 51 to 60 of about 82,977 (264)

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Microwave signals spectru.m analysis by means of microwave photonics

Известия высших учебных заведений России: Радиоэлектроника, 2015
Approaches for microwave spectral analysis by means of microwave photonics are reviewed. Schemes, algorithms of functioning and possible device’s parameters are discussed.
L. A. Aronov, V. N. Ushakov
doaj  

Approximated Characteristics of Bivariate Discrete Time Series with Missing Data [PDF]

المجلة العلمية للدراسات والبحوث المالية والتجارية
The extended finite Fourier transformation is an effective mathematical method for analyzing time series data with vector values. In this study, the transformation is applied to (n + m) time series data, and the approximations obtained are used to create
Mohamed Ali Shappan Alargat, Mohammed Abou El-Fettouh Ghazal, Amira Eldesokey   +2 more
doaj   +1 more source

Electric circuits for universal quantum gates and quantum Fourier transformation

Physical Review Research, 2020
A set of universal quantum gates can be constructed based on quantum walk by formulating it as a scattering problem on a graph. In this paper, we simulate quantum gates by electric circuits, following a recent report that a one-dimensional LC electric ...
Motohiko Ezawa
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Transformations of Fourier coefficients [PDF]

Proceedings of the American Mathematical Society, 1952
Introduction. In 1923 M. Fekete [2]2 introduced the concept of factor sequences that left invariant the class of a Fourier series. That is, Fekete investigated the conditions to which a sequence of constants (X„) must be subjected in order that (X„a„, X„i„) be Fourier coefficients of a function of the same class, K, as that of the function determined ...
openaire   +2 more sources

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

Identification of minerals by frequency analysis of voice [PDF]

Acta Montanistica Slovaca, 1997
In the paper the collecting method, proceding and evaluating of voice signals developed during rotary drilling of minerals is described. Utilizing the frequency analysis of voice signals is suitable for recognizing types of minerals.
Baluch Dušan, Leššo Igor, Kostúr Karol, Futó Jozef   +3 more
doaj  

Fault diagnosis method of mineral transmission equipment based on sparse classification algorithm

Gong-kuang zidonghua, 2016
In view of the problem that the existing fault diagnosis methods based on feature frequency identification for mineral transmission equipments are susceptible to strong noise, a new fault diagnosis method based on sparse classification algorithm for ...
XIA Huili, GUO Yanan, YU Fajun
doaj   +1 more source

A novel ultrasonic wave-based analog Fourier transform computing system

AIP Advances, 2022
The Fourier transform is a powerful tool that has manifold applications in various disciplines. With the rise of new applications, such as real-time image processing, there is a need for more efficient Fourier transformation methods.
Robert Frederik Diaz Uy, Viet Phuong Bui
doaj   +1 more source