Results 111 to 120 of about 5,825,526 (293)

Controllability and heterogeneity of river networks using spectral graph theory approach

Scientific Reports
River networks are important landscape features that have been extensively studied over many years. While seminal works have focused on characterizing the topological properties of river networks, the quantification of their spectral properties has ...
Shiblu Sarker, Arvind Singh, Alexander Veremyev, Vladimir Boginski, Scott Peckham   +4 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Zeroing Unknown Terms: A Novel Clustering Architecture for Low Network Overhead in Distributed Massive MIMO

IEEE Open Journal of the Communications Society
We propose a novel user-centric clustering architecture for distributed massive multiple-input-multiple-output networks. We examine the uplink of a general multi-cell scenario in which a cluster of base stations (BSs) with large antenna arrays detect the
Supuni Gunasekara, Rajitha Senanayake, Peter Smith, Margreta Kuijper   +3 more
doaj   +1 more source

Zero forcing sets and minimum rank of graphs

Linear Algebra and its Applications, 2008
The minimum rank of a simple graph G is defined to be the smallest possible rank over all symmetric realmatrices whose ijth entry (for i /= j ) is nonzero whenever {i, j } is an edge in G and is zero otherwise. Thispaper introduces a new graph parameter, Z(G), that is the minimum size of a zero forcing set of verticesand uses it to bound the minimum ...
Barioli, Francesco, Barrett, Wayne, Butler, Steve, Cioabǎ, S.M., Cvetković, D., Fallat, Shaun M., Godsil, Chris D., Haemers, W.H., Hogben, Leslie, Mikkelson, Rana, Narayan, Sivaram K., Pryporova, Olga, Sciriha, Irene, So, Wasin, Stevanovic, Dragan, van der Holst, Hein, Vander Meulen, Kevin, Wangsness Wehe, Amy   +17 more
openaire   +1 more source

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

Observationally constrained global warming hysteresis under CO2 removal

Communications Earth & Environment
Stabilizing global warming under ongoing anthropogenic warming will likely require atmospheric carbon dioxide removal. However, the extent to which carbon dioxide removal can reverse past warming remains uncertain due to divergent responses across a ...
Se-Yong Song, Duo Chan, Sang-Wook Yeh
doaj   +1 more source

Design of a Power-Aware Reconfigurable and Parameterizable Pseudorandom Pattern Generator for BIST-Based Applications

Journal of Low Power Electronics and Applications
This paper presents a power-aware Reconfigurable Parameterizable Pseudorandom Pattern Generator (RP-PRPG) for a number of applications, including built in self-testing (BIST) and cryptography.
Geethu Remadevi Somanathan, Ujarla Harshavardhan Reddy, Ramesh Bhakthavatchalu   +2 more
doaj   +1 more source

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

Advanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao, Keldy Mason, Mert Gülçür, Rachel Paddock‐Lamb, Prince Alvin Fofanah, Zachariah A. Page, Michael Cullinan   +6 more
wiley   +1 more source

Artificial Noise-Aided Physical Layer Security in Underlay Cognitive Massive MIMO Systems with Pilot Contamination

Entropy, 2017
In this paper, a secure communication model for cognitive multi-user massive multiple-input multiple-output (MIMO) systems with underlay spectrum sharing is investigated.
Hayder Al-Hraishawi, Gayan Amarasuriya Aruma Baduge, Rafael F. Schaefer   +2 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source