Results 21 to 30 of about 1,933,683 (262)

An Efficient Framework for Autonomous UAV Missions in Partially-Unknown GNSS-Denied Environments

Drones, 2023
Nowadays, multirotors are versatile systems that can be employed in several scenarios, where their increasing autonomy allows them to achieve complex missions without human intervention.
Michael Mugnai, Massimo Teppati Losé, Edwin Paúl Herrera-Alarcón, Gabriele Baris, Massimo Satler, Carlo Alberto Avizzano   +5 more
doaj   +1 more source

Portraits of Leonardo da Vinci [PDF]

, 2011
Using an iterative method, applied to image processing, a portrait of a young man, probably a self-portrait of Leonardo da Vinci, is restored. Merging this portrait with the self-portrait in red chalk, we can have the features of a middle-aged Leonardo ...
Sparavigna, Amelia Carolina
core   +1 more source

Didactic Engineering to Teach Leonardo Sequence: A Study on a Complexification Process in a Mathematics Teaching Degree Course [PDF]

International Electronic Journal of Mathematics Education, 2021
This paper presents a study based on didactic engineering and the theory of didactical situations on the complexification of the Leonardo sequence, addressing its numbers in a two-dimensional way, with the insertion of the imaginary unit i. This study is an excerpt from a masters’ thesis research done in the postgraduate programme in science and ...
Francisco Regis Vieira Alves, Milena Carolina dos Santos Mangueira, Paula Maria Machado Cruz Catarino, Renata Passos Machado Vieira   +3 more
openaire   +1 more source

A New Family of Number Sequences: Leonardo-Alwyn Numbers

Armenian Journal of Mathematics, 2023
In this study, we define a new type of number sequence called Leonardo-Alwyn sequence. We obtain the Binet formula, generating function and some relations for these numbers. Moreover, we give the matrix representation of the Leonardo-Alwyn numbers.
openaire   +1 more source

منظومة فيبوناتشى الرقمية کمصدر رياضي لإثراء التصميم [PDF]

المجلة العلمية لكلية التربية النوعية - جامعة المنوفية, 2017
إن التوجه للبحث عن مرجعيات ومصادر للمعرفة تتميز بالأصالة وتضاف الى المخزون المرجعي للمصمم لتکون خلفيات فکرية ومنابع معرفة والهام يعد من أهم الإشکاليات التصميمية فعملية التصميم متجددة ومتطورة وتتزامن مع متطلبات العصر من تحديث وتغيير وبالتالي وجب البحث في ...
اسلام محمد السيد هيبة
doaj   +1 more source

Determinant-preserving blind signatures from Hadamard-type t-Jacobsthal–Leonardo sequences [PDF]

Notes on Number Theory and Discrete Mathematics
In this paper, we introduce a new class of sequences called the termed Hadamard-type t-Jacobsthal-Leonardo sequence which is generated by applying a Hadamard-type product to the characteristic polynomials of the t-Jacobsthal and Leonardo sequences.
Elahe Mehraban, Reza Ebrahimi Atani, Ömür Deveci, Ghadir Golkarian   +3 more
doaj   +1 more source

Non-Fisherian generalized Fibonacci numbers [PDF]

Notes on Number Theory and Discrete Mathematics
Using biology as inspiration, this paper explores a generalization of the Fibonacci sequence that involves gender biased sexual reproduction. The female, male, and total population numbers along with their associated recurrence relations are considered ...
Thor Martinsen
doaj   +1 more source

Salvator Mundi: an investigation of the painting’s materials and techniques

Heritage Science, 2020
Before the start of its restoration in 2007, the Salvator Mundi was thought to be one of a number of copies of a long-lost Leonardo da Vinci painting, depicting Christ giving a blessing with his right hand while holding a crystal orb in his left.
Nica Gutman Rieppi, Beth A. Price, Ken Sutherland, Andrew P. Lins, Richard Newman, Peng Wang, Ting Wang, Thomas J. Tague   +7 more
doaj   +1 more source

Some infinite series summations involving linear recurrence relations of order 2 and 3 [PDF]

Notes on Number Theory and Discrete Mathematics
This paper extends known results of second and third order recursive sequences through extensive formulations of properties of the roots of their characteristic equations, some are old but most are new. They are applied to novel studies of Σₙ₌ₒ^∞ aₘₙ/10ⁿ⁺
Anthony G. Shannon, Peter J.-S. Shiue, Shen C. Huang, Ali Balooch, Yu-Chung Liu   +4 more
doaj   +1 more source

A Note on Bi-Periodic Leonardo Sequence

Armenian Journal of Mathematics
In this work, we define a new generalization of the Leonardo sequence by the recurrence relation $GLe_n=aGLe_{n-1}+GLe_{n-2}+a$ (for even $n$) and $GLe_n=bGLe_{n-1}+GLe_{n-2}+b$ (for odd $n$) with the initial conditions $GLe_0=2a-1$ and $GLe_1=2ab-1$, where $a$ and $b$ are real nonzero numbers.
Catarino, Paula M. M., Spreafico, Elen V. P.   +1 more
openaire   +2 more sources