Results 81 to 90 of about 188,581 (317)

Non‐Destructive and Mechanical Characterization of the Bond Quality of Co‐Extruded Titanium‐Aluminum Profiles

Advanced Engineering Materials, EarlyView.
This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld, Ahmed Dewidar, Karim Qarbi, Hendrik Wester, Florian Patrick Schäfke, Alexej Verschinin, Hans Jürgen Maier, Sebastian Barton, Christian Klose, Johanna Uhe   +9 more
wiley   +1 more source

Sparse Wavelet Representation of Differential Operators with Piecewise Polynomial Coefficients

Axioms, 2017
We propose a construction of a Hermite cubic spline-wavelet basis on the interval and hypercube. The basis is adapted to homogeneous Dirichlet boundary conditions.
Dana Černá, Václav Finĕk
doaj   +1 more source

Wavelets for Quantum Gravity and Divergence-Free Wavelets

Applied and Computational Harmonic Analysis, 1994
AbstractWe present an easy construction of L2-orthonormal bases of divergence-free wavelets in two, four, and eight dimensions. Both wavelets of class CM with exponential decay and wavelets of the Meyer type are constructed. The idea is extended to the construction of symmetric-tensor-valued, divergence-free, trace-free wavelets in four dimensions—of ...
Paul Federbush, Guy Battle, Paul Uhlig
openaire   +2 more sources

Development of a Novel Processing Route for Dispersoid/Precipitation‐Strengthened High Conductive Copper Alloys by Using Metalized Nanoceramics in Additive Manufacturing

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel, Abdelrahman Elsayed, Lukas Mielewczyk, Katja Eichmann, Julia Grothe, Ulrich Krupp, Avinash Hariharan, Katrin Jahns   +7 more
wiley   +1 more source

NEW METHOD FOR HAND GESTURE RECOGNITION USING WAVELET NEURAL NETWORK

Journal of Engineering and Sustainable Development, 2017
This paper present a method for hand gesture recognition through Statistic hand gesture which is namely, a subset of American Sign Language (ASL). The proposed technique presents an image of hand gesture by passing it through four stages, preprocessing,
Jabbar Raheem Rashed, Hasanain Abbas Hasan   +1 more
doaj  

An Examination of Aerosol Jet‐Printed Surface Roughness and its Impact on the Performance of High‐Frequency Electronics

Advanced Engineering Materials, EarlyView.
This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley   +1 more source

Face Recognition Based Wavelet-PCA Features and Skin Color Model

Journal of Engineering and Sustainable Development, 2011
In this paper, a face recognition system for personal identification using Discret Wavelet Transform(DWT), Principle component Analysis (PCA) and Back-propagation Neural Network is proposed. The system consists of three steps.
Ali Hussien Mary
doaj  

3D‐Printed Architected Material for the Generation of Foam‐Based Protective Equipment

Advanced Engineering Materials, EarlyView.
This study investigates 3D‐printed architected structures as alternatives to traditional foams in protective gear. It focuses on customizing impact strength and damping through design and manufacturing integration. Testing shows these structures outperform conventional foams, offering enhanced customizability, lower weight, and tunable performance ...
Ali Zolfagharian, Gerard Bel Català, Daniel Saakes, Bernard Rolfe, Ian Gibson, Mehrshad Mehrpouya   +5 more
wiley   +1 more source

Novel computation of pulse transit time from multi-channel PPG signals by wavelet transform

Current Directions in Biomedical Engineering, 2016
Being able to accurately monitor blood pressure in a reliable, truly non-invasive manner is a highly sought after goal within the biomedical community.
Pielmuş Alexandru-Gabriel, Pflugradt Maik, Tigges Timo, Klum Michael, Feldheiser Aarne, Hunsicker Oliver, Orglmeister Reinhold   +6 more
doaj   +1 more source

Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar, Atiqul Islam Ahad, Carla Berrospe‐Rodriguez, Guillermo Aguilar   +3 more
wiley   +1 more source