Results 51 to 60 of about 2,080 (215)
From Genes to Shapes: Exploring Local Adaptation in Carpathian Ox‐Eye Daisies
Journal of Biogeography, Volume 52, Issue 8, August 2025.ABSTRACT Aim Historical processes have shaped the Carpathian biogeography, yet ongoing evolutionary forces continue to drive population differentiation. We aimed to test whether local adaptation in the Carpathian subendemic Leucanthemum rotundifolium correlates with genetic, morphological and environmental factors, and to assess how these patterns ...
Kamil Konowalik, Olga Łuczak
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Some Identities Involving Fibonacci Polynomials and Fibonacci Numbers [PDF]
Mathematics, 2018 The aim of this paper is to research the structural properties of the Fibonacci polynomials and Fibonacci numbers and obtain some identities. To achieve this purpose, we first introduce a new second-order nonlinear recursive sequence. Then, we obtain our main results by using this new sequence, the properties of the power series, and the combinatorial ...
Ma, Yuankui, Zhang, Wenpeng
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Numerical Analysis on Burn Injury of Human Skin Exposed to Varying Flash Fire Conditions
Engineering Reports, Volume 7, Issue 7, July 2025.A 3D prototype model of human skin, comprising epidermis, dermis, and subcutaneous tissue, analyzes temperature impacts for flash fire Q = 83,200 W/m2, conductivity (ke = 0.21, kd = 0.37, ks = 0.16) and specific heat capacities (Cpe = 3578, Cpd = 3200, Cps = 2288).
Salma Parvin +4 more
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On Integer Numbers with Locally Smallest Order of Appearance in the Fibonacci Sequence
International Journal of Mathematics and Mathematical Sciences, 2011 Let Fn be the nth Fibonacci number. The order of appearance z(n) of a natural number n is defined as the smallest natural number k such that n divides Fk. For instance, for all n=Fm≥5, we have z(n−1)>z(n)
Diego Marques
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On Recursive Hyperbolic Fibonacci Quaternions
Communications in Advanced Mathematical Sciences, 2021 Many quaternions with the coefficients selected from special integer sequences such as Fibonacci and Lucas sequences have been investigated by a great number of researchers.
Ahmet Daşdemir
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A General Approach to Predict and Tailor the Nanoscale Permeability of Comb‐Shaped Polymer Coatings
Small Methods, Volume 9, Issue 7, July 19, 2025.Comb‐shaped polymers are used to produce ‘molecular sieving’ coatings. The steric and size‐selective permeability characteristics of comb‐polymer coatings are systematically explored in silico across a very broad parameter space. All features of the data can be understood when three distinct regimes are considered: i) no‐interactions, ii) weak ...
Nicole Drossis +2 more
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Journal of Advances in Modeling Earth Systems, Volume 17, Issue 7, July 2025.Abstract In the past 5 years, data‐driven prediction models and Machine Learning (ML) techniques have revolutionized weather forecasting. Meteorological services around the world are now developing ML components to enhance (or even replace) their numerical weather prediction systems.
J. Wilhelm +9 more
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Families of Integral Cographs within a Triangular Array
Special Matrices, 2020 The determinant Hosoya triangle, is a triangular array where the entries are the determinants of two-by-two Fibonacci matrices. The determinant Hosoya triangle mod 2 gives rise to three infinite families of graphs, that are formed by complete product ...
Ching Hsin-Yun +2 more
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Some properties of Fibonacci numbers, Fibonacci octonions, and generalized Fibonacci-Lucas octonions [PDF]
Advances in Difference Equations, 2015 In this paper we determine some properties of Fibonacci octonions. Also, we introduce the generalized Fibonacci-Lucas octonions and we investigate some properties of these elements.
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Adaptive Fractional Hybrid Impedance Control of Rotary Series Elastic Actuator in Flat Terrains
Advanced Intelligent Systems, Volume 7, Issue 6, June 2025.This article presents an adaptive fractional hybrid impedance control (AFH‐IC) approach for rotary series elastic actuators operating on flat terrains. The proposed method integrates fractional‐order control, adaptive fuzzy logic, and particle swarm optimization to enhance torque tracking accuracy and robustness.
Muhammed Özdemir, Zafer Bingül
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