Results 81 to 90 of about 2,031,724 (254)

On companion sequences associated with Leonardo quaternions : Applications over finite fields

open access: yesJournal of Information and Optimization Sciences
It is known that the quaternion algebras are central simple algebras and also clifford algebras. In this paper, we introduce a new class of quaternions called Lucas-Leonardo p-quaternions and derive several fundamental properties of these numbers. Furthermore, we investigate some applications related to companion sequences associated with Leonardo ...
Savin, Diana, Tan, Elif
openaire   +2 more sources

One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas   +2 more
wiley   +1 more source

Leonardo da Vinci

open access: yes, 1898
LEONARDO DA VINCI Leonardo da Vinci ( - ) Einband ( - ) Vorblatt ( - ) Titelblatt ( - ) Abbildung ([2]) Kapitel ([3]) Litteratur. (136) Vorblatt ( - ) Einband ( -
Leonardo , Rosenberg, Adolf
core   +1 more source

Antologia de Leonardo Antunes

open access: yes, 2019
Antologia de Leonardo ...
Antunes, Leonardo
core   +2 more sources

One hundred years of teaching, research, and innovation in chemical engineering at the Faculty of Chemistry, National Autonomous University of Mexico (UNAM): Birthplace and enduring leadership of the discipline in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
The teaching of chemical engineering in Mexico started in 1925 at the Faculty of Chemistry (FQ) of the National Autonomous University of Mexico (UNAM). Academic institutions, research centres, chemical companies, technological developments, highly trained personnel, and scientific contributions are part of the legacy from FQ‐UNAM.
Patricia Pérez‐Salinas   +4 more
wiley   +1 more source

On Leonardo Numbers

open access: yes, 2019
In this paper, we consider the sequence of Leonardo numbers and we present some properties involving this sequence, including the Binet formula, and the generating function.
Borges, Anabela, Catarino, Paula
core   +1 more source

ON 3-PARAMETER GENERALIZED QUATERNIONS WITH THE LEONARDO p-SEQUENCE

open access: yesJournal of Science and Arts
In this article, 3-parameter generalized quaternionic Leonardo p-sequence which is a quaternion generalization of the Leonardo p-sequence is presented. Several properties are examined by means of their homogeneous and non-homogeneous recursive relations.
openaire   +2 more sources

The generalization of Gaussians and Leonardo\u27s octonions

open access: yes, 2023
In order to explore the Leonardo sequence, the process of complexification of this sequence is carried out in this work. With this, the Gaussian and octonion numbers of the Leonardo sequence are presented. Also, the recurrence, generating function, Binet’
Vieira, Renata Passos Machado   +3 more
core  

Coupled heat and mass transfer in reactive parallel‐plate flow: A perturbative Graetz model with modal symmetry and Arrhenius kinetics

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
A perturbative Graetz model describes coupled heat and mass transfer in reactive Couette–Poiseuille flow between parallel plates. Viscous dissipation and heat of reaction produce a small temperature rise, which enhances Arrhenius reaction rates and modestly accelerates axial species conversion in the small‐Brinkman‐number regime.
Leonardo Damián Soria Rodríguez   +1 more
wiley   +1 more source

Leonardo da Vinci

open access: yes, 1913
LEONARDO DA VINCI Leonardo da Vinci ( - ) Einband ( - ) Vorblatt ( - ) Titelblatt ( - ) Abbildung ( - ) Kapitel (1) Literatur. ([137]) Verzeichnis der Abbildungen. ([138]) Vorblatt ( - ) Einband ( -
Leonardo , Rosenberg, Adolf
core   +1 more source

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