Results 81 to 90 of about 9,948,343 (299)

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Compressed point cloud classification with point-based edge sampling

EURASIP Journal on Image and Video Processing
3D point cloud data, as an immersive detailed data source, has been increasingly used in numerous applications. To deal with the computational and storage challenges of this data, it needs to be compressed before transmission, storage, and processing ...
Zhe Luo, Wenjing Jia, Stuart Perry
doaj   +1 more source

Parallel Encryption of Noisy Images Based on Sequence Generator and Chaotic Measurement Matrix

Complexity, 2020
With the rapid development of information technology in today’s society, the security of transmission and the storage capacity of hardware are increasingly required in the process of image transmission.
Jiayin Yu, Yaqin Xie, Shiyu Guo, Yanqi Zhou, Erfu Wang   +4 more
doaj   +1 more source

Compressive sensing: from "compressing while sampling" to "compressing and securing while sampling".

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference, 2010
In a traditional signal processing system sampling is carried out at a frequency which is at least twice the highest frequency component found in the signal. This is in order to guarantee that complete signal recovery is later on possible. The sampled signal can subsequently be subjected to further processing leading to, for example, encryption and ...
Abdulghani, AM, Rodriguez-Villegas, E
openaire   +2 more sources

Compressive sampling for networked feedback control

2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2012
We investigate the use of compressive sampling for networked feedback control systems. The method proposed serves to compress the control vectors which are transmitted through rate-limited channels without much deterioration of control performance. The control vectors are obtained by an L1-L2 optimization, which can be solved very efficiently by FISTA (
Nagahara, Masaaki, Quevedo, Daniel. E., Matsuda, Takahiro, Hayashi, Kazunori   +3 more
openaire   +4 more sources

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

Advanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov, Roberta Gabrieli, Avzal Akbarov, Nigora Nigmatova, Bekhzod Khabilov, Alessandro Schiavi, Martin Schwentenwein, Enrica Verné, Francesco Baino   +8 more
wiley   +1 more source

Compressed Sensing-Based MRI Reconstruction Using Complex Double-Density Dual-Tree DWT

International Journal of Biomedical Imaging, 2013
Undersampling k-space data is an efficient way to speed up the magnetic resonance imaging (MRI) process. As a newly developed mathematical framework of signal sampling and recovery, compressed sensing (CS) allows signal acquisition using fewer samples ...
Zangen Zhu, Khan Wahid, Paul Babyn, Ran Yang   +3 more
doaj   +1 more source

Importance sampling for Lambda-coalescents in the infinitely many sites model

, 2011
We present and discuss new importance sampling schemes for the approximate computation of the sample probability of observed genetic types in the infinitely many sites model from population genetics. More specifically, we extend the 'classical framework',
Birkner, Birkner, Carr, Dong, Eldon, Ethier, Felsenstein, Griffiths, Griffiths, Griffiths, Griffiths, Hobolth, Hobolth, Jochen Blath, Matthias Birkner, Matthias Steinrücken, Möhle, Pepin, Pitman, Rogers, Sagitov, Schweinsberg, Sigurgíslason, Stephens, Tavaré, Ward, Árnason, Árnason, Árnason, Árnason   +29 more
core   +1 more source

Efficient Process Development for Laser Powder Bed Fusion of a Soft‐Magnetic Metallic Glass Composite

Advanced Engineering Materials, EarlyView.
Iron‐based metallic glass alloys exhibit excellent soft‐magnetic properties, and unprecedented geometrical freedom in the design of soft‐magnetic metallic glass components is made possible by additive manufacturing. An efficient workflow for developing parameters for laser‐based powder bed fusion of a Fe‐based metallic glass alloy is presented along ...
Julia Löfstrand, Priyanka Saha, Vidhiaza Leviandhika, Urban Wiklund, Alexander Elsen, Carolin Zintel, Lena Thorsson, Petra E. Jönsson   +7 more
wiley   +1 more source

Compressed sensing image processing algorithm of underground coal mine

Gong-kuang zidonghua, 2016
In view of the problem that energy consumption of sensor nodes is fast and equipment life is cut caused by large amount of information transmission of wireless sensor network, a kind of compressed sensing image processing algorithm based on wavelet ...
YIN Zhu, HUANG Yourui, CHEN Zhenping
doaj   +1 more source