Results 51 to 60 of about 315 (165)

Frequency Band Analysis of Multiple Stationary Time Series

open access: yesStatistics in Medicine, Volume 45, Issue 3-5, February 2026.
ABSTRACT The frequency‐domain properties of biomedical signals offer valuable insights into health and functioning of underlying physiological systems. The power spectrum, which characterizes these properties, is often summarized by partitioning frequencies into standard bands and averaging power within bands.
Connor K. Brubaker   +3 more
wiley   +1 more source

On the Structural Behavior of Multiplicative (Generalized)‐Derivations via d‐Algebra Structures

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In the context of a d‐algebra structure (℧, ∗, 0), this paper aims to introduce the concept of a multiplicative (generalized)‐derivation G associated with a self‐map Ξ (not necessarily a derivation). Based on this concept, the operations ∧ and composition ° will be defined, and several interesting related properties will be investigated, such as ...
Hicham Saber   +5 more
wiley   +1 more source

Certain Concepts of Q-Hesitant Fuzzy Ideals

open access: yesJournal of Function Spaces, 2022
The hesitant fuzzy set model has attracted the interest of scholars in various fields. The striking framework of hesitant fuzzy sets is keen to provide a larger domain of preference for fuzzy information modeling of deployment membership.
Lubna Abdul Aziz Alleheb   +1 more
doaj   +1 more source

Semigroup Structures and Commutative Ideals of BCK-Algebras Based on Crossing Cubic Set Structures

open access: yesAxioms, 2022
First, semigroup structure is constructed by providing binary operations for the crossing cubic set structure. The concept of commutative crossing cubic ideal is introduced by applying crossing cubic set structure to commutative ideal in BCK-algebra, and
Mehmet Ali Öztürk   +2 more
doaj   +1 more source

Fuzzyfications of ideals in BCC-algebras [PDF]

open access: yes, 2001
In this paper we consider the fuzzification of ideals in the sense of W.A. Dudek in BCC-algebras. We discuss the relations among fuzzy BCK-ideal, fuzzy BCC-ideal and fuzzy g-ideal.
Wielaw A. Dudek, Young Bae Jun
core   +1 more source

CO2 Capture, Utilization, and Storage using Amino Acids

open access: yesAdvanced Sustainable Systems, Volume 9, Issue 12, December 2025.
Amino acid and amino acid‐based ionic liquids show potential for sustainable CO2 capture, benefiting from reactive NH2 groups and low‐energy regeneration. Their use in solvents, functionalized sorbents, direct air capture, mineralization, and CO2 conversion highlights their versatilty and promise for advacing next‐generation CO2 sequestration ...
Md Sariful Sheikh   +3 more
wiley   +1 more source

On derivations of pseudo L-algebras [PDF]

open access: yesJournal of Mahani Mathematical Research
In this article, the focus is on the study of derivations on two types of algebraic structures: pseudo L-algebras and pseudo CKL-algebras. For pseudo L-algebras, the notions of left and right derivations are introduced.
Yu Qian Guo, Xiao Long Xin
doaj   +1 more source

RGD – ALJABAR [PDF]

open access: yes, 2017
RGD – aljabar merupakan perluasan dari RG – aljabar yang diperkenalkan pertama kali pada tahun 2014oleh R. A. K. Omar. RGD − aljabar adalah suatu himpunan tak kosong yang memuat konstanta 0 ∈ ,dengan operasi ∗ sehingga ...
ANGGUN NANDANINGRUM, DIKA
core   +2 more sources

d-ideal fuzzy pada d-aljabar [PDF]

open access: yes, 2020
Himpunan fuzzy merupakan suatu himpunan dengan fungsi keanggotaan µ yang memiliki derajat keanggotaan berkisar 0 sampai 1. Himpunan tak kosong X dikenakan operasi ∗ dilengkapi dengan konstanta 0, dikatakan d-aljabar apabila memenuhi beberapa aksioma ...
Muaffiroh, Diniyah
core  

Elephant Clan Optimization for Scenario‐Based Fuel‐Constrained Heat and Power Scheduling for Remote Microgrid

open access: yesEngineering Reports, Volume 7, Issue 11, November 2025.
This manuscript proposes ECO (elephant clan optimization) to address heat and electric power scheduling in remote MG (microgrids) under three distinct scenarios, considering fuel constraints. ECO is a population‐based approach influenced by the behavior and social structure of elephants.
Chitralekha Jena   +7 more
wiley   +1 more source

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