Results 101 to 110 of about 27,278 (300)

On equal consecutive values of multiplicative functions

open access: yesDiscrete Analysis
On equal consecutive values of multiplicative functions, Discrete Analysis 2024:12, 20 pp. It is widely expected that the prime factorizations of a pair of large consecutive natural numbers $n, n+1$ (or of a pair with fixed spacing, such as $n,n+2 ...
Alexander P. Mangerel
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

Learning compositional functions via multiplicative weight updates [PDF]

open access: yes, 2020
Compositionality is a basic structural feature of both biological and artificial neural networks. Learning compositional functions via gradient descent incurs well known problems like vanishing and exploding gradients, making careful learning rate tuning
Anandkumar, Anima   +5 more
core  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Multiplicative Isometries on Classes Mp(X) of Holomorphic Functions

open access: yesJournal of Function Spaces, 2015
In (Iida and Kasuga 2013), the authors described multiplicative (but not necessarily linear) isometries of Mp(X) onto Mp(X) in the case of positive integer p∈N, where Mp(X)  (p≥1) is included in the Smirnov class N∗(X).
Yasuo Iida, Kazuhiro Kasuga
doaj   +1 more source

Semimultiplicative generalized arithmetical functions [PDF]

open access: yesMathematica Bohemica
By a generalized arithmetical function we mean a function from the set of positive integers to a ring with identity, and we say that a generalized arithmetical function $f$ is semimultiplicative if $f(n) = c_f f_M(n/a_f)$, where $c_f$ is a unit in the ...
Pentti Haukkanen
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

Capturing the Zero: A New Class of Zero-Augmented Distributions and Multiplicative Error Processes [PDF]

open access: yes
We propose a novel approach to model serially dependent positive-valued variables which realize a non-trivial proportion of zero outcomes. This is a typical phenomenon in financial time series observed on high frequencies, such as cumulated trading ...
Peter Malec   +2 more
core  

Generalized Fourier coefficients of multiplicative functions

open access: yes, 2018
We introduce and analyze a general class of not necessarily bounded multiplicative functions, examples of which include the function n bar right arrow delta(omega(n)), where delta is an element of R \ {0} and where omega counts the number of distinct ...
Matthiesen, Lilian,
core   +2 more sources

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