Results 11 to 20 of about 2,591,994 (263)

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

Analysis of the stress-strain state of a radially inhomogeneous transversely isotropic sphere with a fixed side surface

open access: yesAdvanced Engineering Research, 2022
Introduction. The paper considers an axisymmetric problem of elasticity theory for a radially inhomogeneous transversally isotopic nonclosed sphere containing none of the 0 and 𝜋 poles.
N. K. Akhmedov, S. M. Yusubova
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

Construction of Solutions for Hénon-Type Equation with Critical Growth

open access: yesAdvanced Nonlinear Studies, 2021
We consider the following Hénon-type problem with critical growth:
Guo Yuxia, Liu Ting
doaj   +1 more source

Variance reduction methods [PDF]

open access: yesProceedings of the 18th conference on Winter simulation - WSC '86, 1986
A computer simulation model is unusual in that the random error is under the total control of the experimenter. Variance reduction methods aim to take advantage of this to improve experimental accuracy. The fundamental ideas behind the most important of these methods will be described and illustrated with simple examples.
openaire   +1 more source

Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2023
Let (M_k) be the sequence of Mulatu numbers defined by M_0=4, M_1=1, M_k=M_(k-1)+M_(k-2) and (F_k) be the Fibonacci sequence given by the recurrence F_k=F_(k-1)+F_(k-2) with the initial conditions F_0=0, F_1=1 for k≥2.
Fatih Erduvan, Merve Güney Duman
doaj   +1 more source

Curious Generalized Fibonacci Numbers

open access: yesMathematics, 2021
A generalization of the well-known Fibonacci sequence is the k−Fibonacci sequence whose first k terms are 0,…,0,1 and each term afterwards is the sum of the preceding k terms. In this paper, we find all k-Fibonacci numbers that are curious numbers (i.e.,
Jose L. Herrera   +2 more
doaj   +1 more source

Shard Load Balancing Method Using State Reduction [PDF]

open access: yesJisuanji kexue, 2022
Sharding technology is one of the core technologies to solve the scalability problem of blockchain.When transactions in the P2P network are aggregated into established shards according to the rules,and the verification nodes are randomly and evenly ...
CHEN Jing, LI Zhi-huai, GAO Dong-xue, LI Min
doaj   +1 more source

New symmetry reduction method for (1+1)-dimensional differential-difference equations

open access: yesFrontiers in Physics, 2023
We propose a new symmetry reduction method for (1+1)-dimensional differential-difference equations (DDEs), namely, the λ-symmetry reduction method of solving ordinary differential equations is generalized to DDEs.
Jielin Lyu   +3 more
doaj   +1 more source

On $k$-Fibonacci balancing and $k$-Fibonacci Lucas-balancing numbers

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
The balancing number $n$ and the balancer $r$ are solution of the Diophantine equation $$1+2+\cdots+(n-1) = (n+1)+(n+2)+\cdots+(n+r). $$ It is well known that if $n$ is balancing number, then $8n^2 + 1$ is a perfect square and its positive square root is
S.E. Rihane
doaj   +1 more source

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