Results 51 to 60 of about 2,710,086 (272)

Distance spectral radius of a tree with given diameter

Ars Comb., 2013
For a connected graph, the distance spectral radius is the largest eigenvalue of its distance matrix. In this paper, of all trees with both given order and fixed diameter, the trees with the minimal distance spectral radius are completely characterized.
Guanglong Yu, Shu-Guang Guo, Mingqing Zhai   +2 more
openaire   +3 more sources

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

The Minimal Spectral Radius of Graphs with a Given Diameter [PDF]

AMS classsifications: 05C50; 05E99; 94C15;graphs;spectral radius;diameter;networks;virus ...
Kooij, R.E., Dam, E.R. van
core   +2 more sources

On Distance Spectral Radius and Distance Energy of Graphs

, 2011
For a connected graph, the distance spectral radius is the largest eigenvalue of its distance matrix, and the distance energy is defined as the sum of the absolute values of the eigenvalues of its distance matrix. We establish lower and upper bounds for the distance spectral radius of graphs and bipartite graphs, lower bounds for the distance energy of
Zhou, Bo, Ilic, Aleksandar
openaire   +2 more sources

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Perron-Frobenius Theorem for Spectral Radius Analysis [PDF]

, 2016
The spectral radius of a matrixAis the maximum norm of alleigenvalues ofA. In previous work we already formalized that for acomplex matrixA, the values inAngrow polynomially innif andonly if the spectral radius is at most one.
José Divasón [0000-0002-5173-128X], Akihisa Yamada, René Thiemann, Ondřej Kunčar   +3 more
core   +1 more source

Extremal properties of the distance spectral radius of hypergraphs

, 2020
The distance spectral radius of a connected hypergraph is the largest eigenvalue of its distance matrix. The unique hypertrees with minimum distance spectral radii are determined in the class of hypertrees of given diameter, in the class of hypertrees of
Zhou, Bo, Wang, Yanna
core   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Spatial and Temporal Distribution of Northwest Cape Transmitter (19.8 kHz) Radio Signals Using Data Collected by the China Seismo-Electromagnetic Satellite

Atmosphere, 2023
Very Low Frequency (VLF) waves radiated from ground-based transmitters are crucial for long-distance communication and underwater navigation. These waves can reflect between the Earth’s surface and the ionosphere for Earth–ionosphere waveguide ...
Honggeng Cai, Shufan Zhao, Li Liao, Xuhui Shen, Hengxin Lu   +4 more
doaj   +1 more source

On distance spectral radius of uniform hypergraphs [PDF]

Linear and Multilinear Algebra, 2017
The distance spectral radius of a connected hypergraph is the largest eigenvalue of its distance matrix. We determine the unique connected k-uniform hypergraphs with minimum distance spectral radius when the number of pendant edges is given, the unique k-uniform non-hyperstar-like hypertrees (non-hyper-caterpillars, respectively) with minimum distance ...
Hongying Lin, Bo Zhou, Yaduan Li
openaire   +1 more source