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Synthesis of Controllable Superparamagnetic Nano Fe3O4 Based on Reduction Method for Colloidal Clusters of Magnetically Responsive Photonic Crystals [PDF]

open access: yesNanomaterials
In this paper, we designed and investigated a reduction-based method to synthesize controllably monodisperse superparamagnetic nano Fe3O4 colloidal clusters for magnetically responsive photonic crystals.
Jun Chen   +5 more
doaj   +2 more sources

A Linear Elasticity Theory to Analyze the Stress State of an Infinite Layer with a Cylindrical Cavity under Periodic Load

open access: yesComputation, 2022
The design of parts of machines, mechanisms, structures and foundations, particularly in the aerospace industry, is closely related to the definition of the stress state of the body.
Vitaly Miroshnikov   +3 more
doaj   +1 more source

Dimensionality reduction methods [PDF]

open access: yesAdvances in Methodology and Statistics, 2005
In case one or more sets of variables are available, the use of dimensional reduction methods could be necessary. In this contest, after a review on the link between the Shrinkage Regression Methods and Dimensional Reduction Methods, authors provide a different multivariate extension of the Garthwaite's PLS approach (1994) where a simple linear ...
D'AMBRA L, AMENTA P, GALLO, Michele
openaire   +5 more sources

Existence of single peak solutions for a nonlinear Schrödinger system with coupled quadratic nonlinearity

open access: yesAdvances in Nonlinear Analysis, 2021
We are concerned with the following Schrödinger system with coupled quadratic ...
Yang Jing, Zhou Ting
doaj   +1 more source

Progress and Challenges of Materials and Methods for Uranium Extraction From Seawater

open access: yesHe huaxue yu fangshe huaxue, 2023
The ocean covers 70% of the earth’s area, and the seawater uranium is more than 1000 times that of terrestrial uranium ore. In order to increase the power generation and ensure the sustainable operation of nuclear power plants, the development of ...
TANG Xing-rui   +8 more
doaj   +1 more source

Repdigits as Product of Fibonacci and Tribonacci Numbers

open access: yesMathematics, 2020
In this paper, we study the problem of the explicit intersection of two sequences. More specifically, we find all repdigits (i.e., numbers with only one repeated digit in its decimal expansion) which can be written as the product of a Fibonacci by a ...
Dušan Bednařík, Eva Trojovská
doaj   +1 more source

Repdigits as Product of Terms of k-Bonacci Sequences

open access: yesMathematics, 2021
For any integer k≥2, the sequence of the k-generalized Fibonacci numbers (or k-bonacci numbers) is defined by the k initial values F−(k−2)(k)=⋯=F0(k)=0 and F1(k)=1 and such that each term afterwards is the sum of the k preceding ones.
Petr Coufal, Pavel Trojovský
doaj   +1 more source

Effect of Oxide Scale on Hot Dip Zn-Al-Mg Alloy Coating Prepared by Reduction Combined with Induction Heating

open access: yesMetals, 2020
Hot dipping Zn-Al-Mg coatings were prepared by rapid induction heating combined with gas protection. The influence of oxide scale on the structure and surface quality of a hot-dip Zn-6Al-3Mg alloy coating was studied in this paper.
Yijie Zhang   +6 more
doaj   +1 more source

A Quadratic Diophantine Equation Involving Generalized Fibonacci Numbers

open access: yesMathematics, 2020
The sequence of the k-generalized Fibonacci numbers ( F n ( k ) ) n is defined by the recurrence F n ( k ) = ∑ j = 1 k F n − j ( k ) beginning with the k terms 0 , … , 0 , 1 .
Ana Paula Chaves, Pavel Trojovský
doaj   +1 more source

On Multi-Step Look-Ahead Deadlock Prediction for Automated Manufacturing Systems Based on Petri Nets

open access: yesIEEE Access, 2020
Automated manufacturing systems (AMSs) are prone to be in deadlock states when resource allocation is unreasonable. Reasonably allocating system resources to achieve deadlock control is a primary task of the design of an AMS.
Rongfeng Lin   +4 more
doaj   +1 more source

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