Results 21 to 30 of about 830,970 (279)

THE ENTROPIES OF THE SEQUENCES OF FUZZY SETS AND THE APPLICATIONS OF ENTROPY TO CARDIOGRAPHY [PDF]

open access: yesInternational Journal of Mathematical Modelling & Computations, 2016
In this paper, rstly we have introduced to entropy of sequences of fuzzy sets and given sometheorems about it. Secondly, the waves P and T which appears in electrocardiograms weretransferred to fuzzy sets, by using denition of entropy for sequences of ...
M. şengönül   +3 more
doaj  

The Compared Costs of Domination Location-Domination and Identification

open access: yesDiscussiones Mathematicae Graph Theory, 2020
Let G = (V, E) be a finite graph and r ≥ 1 be an integer. For v ∈ V, let Br(v) = {x ∈ V : d(v, x) ≤ r} be the ball of radius r centered at v. A set C ⊆ V is an r-dominating code if for all v ∈ V, we have Br(v) ∩ C ≠ ∅; it is an r-locating-dominating code
Hudry Olivier, Lobstein Antoine
doaj   +1 more source

A bioinspired optimization strategy: to minimize the travel segment of the nozzle to accelerate the fused deposition modeling process [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
The fused deposition modeling process of digital printing uses a layer-by-layer approach to form a three-dimensional structure. Digital printing takes more time to fabricate a 3D model, and the speed varies depending on the type of 3D printer, material ...
Sundarraj Sridhar   +3 more
doaj   +1 more source

An evaluation of important criteria for measuring the facade condition of old shophouses in Malaysia [PDF]

open access: yes, 2017
Preserving the facade of the old shop houses is important to reflect the image of an attractive townscape. Be-sides having a unique architectural motif, the facade of an old shop houses also has a high heritage value, particularly in terms of how it was ...
Abd Rahman, Sa’afilah   +2 more
core   +1 more source

The Locating Chromatic Number of Book Graph

open access: yesJournal of Mathematics, 2021
Let G=VG,EG be a connected graph and c:VG⟶1,2,…,k be a proper k-coloring of G. Let Π be a partition of vertices of G induced by the coloring c. We define the color code cΠv of a vertex v∈VG as an ordered k-tuple that contains the distance between each ...
Nur Inayah   +2 more
doaj   +1 more source

QPSK Block-Modulation Codes for Unequal Error Protection [PDF]

open access: yes, 1995
Unequal error protection (UEP) codes find applications in broadcast channels, as well as in other digital communication systems, where messages have different degrees of importance.
Lin, Shu, Morelos-Zaragoza, Robert H
core   +2 more sources

Three-transmit-antenna space-time codes based on SU(3) [PDF]

open access: yes, 2005
Fully diverse constellations, i.e., a set of unitary matrices whose pairwise differences are nonsingular, are useful in multiantenna communications especially in multiantenna differential modulation, since they have good pairwise error properties ...
Hassibi, Babak, Jing, Yindi
core   +1 more source

The interleukin-6/interleukin-23/T helper 17-axis as a driver of neuro-immune toxicity in the major neurocognitive psychosis or deficit schizophrenia: A precision nomothetic psychiatry analysis.

open access: yesPLoS ONE, 2022
BackgroundSchizophrenia and especially deficit schizophrenia (DSCZ) are characterized by increased activity of neuroimmunotoxic pathways and a generalized cognitive decline (G-CoDe).
Hussein Kadhem Al-Hakeim   +5 more
doaj   +2 more sources

Kinematic modeling of 5-axis horizontal milling machine emulated from vertical articulated robot [PDF]

open access: yesFME Transactions, 2018
Industrial robots are a proper alternative to 5-axis machine tools for multi-axis milling of parts from softer materials and lower tolerances. For these reasons, researchers develop software solutions to bring programming of machining robots closer to ...
Slavković Nikola   +3 more
doaj  

Twisted skew G-codes

open access: yesDesigns, Codes and Cryptography
In this paper we investigate left ideals as codes in twisted skew group rings. The considered rings, which are often algebras over a finite field, allows us to detect many of the well-known codes. The presentation, given here, unifies the concept of group codes, twisted group codes and skew group codes.
Behajaina, Angelot   +3 more
openaire   +4 more sources

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