Results 51 to 60 of about 69,240 (308)

On generalized derivations of partially ordered sets [PDF]

open access: yesCommunications in Mathematics, 2019
Abstract Let P be a poset and d be a derivation on P. In this research, the notion of generalized d-derivation on partially ordered sets is presented and studied. Several characterization theorems on generalized d-derivations are introduced. The properties of the fixed points based on the generalized d-derivations are examined.
Abdelwanis, Ahmed Y., Boua, Abdelkarim
openaire   +3 more sources

Impacts of Harmonic Voltage Distortions on the Dynamic Behavior and the PRPD Patterns of Partial Discharges in an Air Cavity Inside a Solid Dielectric Material

open access: yesEnergies, 2022
The monitoring of partial discharges (PDs) is one of the main methods used worldwide for evaluation and diagnosis of the insulation conditions in equipment powered by medium and high voltages.
Gustavo de Oliveira Machado   +4 more
doaj   +1 more source

Discovering Frequent Episodes With General Partial Orders [PDF]

open access: yes, 2010
Pattern Discovery, a popular paradigm in data mining refers to a class of techniques that try and extract some unknown or interesting patterns from data.
Achar, Avinash
core  

Linear orders on general algebras

open access: yes, 2005
We answer the question, when a partial order in a partially ordered algebraic structure has a compatible linear extension. The finite extension property enables us to show, that if there is no such extension, then it is caused by a certain finite subset ...
Radeleczki, Sándor   +3 more
core   +1 more source

Partially Ordered Generalized Patterns and k -ary Words

open access: yesAnnals of Combinatorics, 2003
Recently, Kitaev [Ki2] introduced partially ordered generalized patterns (POGPs) in the symmetric group, which further generalize the generalized permutation patterns introduced by Babson and Steingrímsson [BS]. A POGP p is a GP some of whose letters are incomparable. In this paper, we study the generating functions (g.f.) for the number of k-ary words
Kitaev, Sergey, Mansour, Toufik
openaire   +5 more sources

Venous Thromboembolism in Pediatric Bone Sarcoma Patients: A 10‐Year, Single‐Institution Experience Encompassing the COVID‐19 Pandemic

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Osteosarcoma (OS) and Ewing sarcoma (EWS) are the most common primary bone cancers in children, but acute thrombosis is poorly characterized in this population. Our study evaluated the rates of venous thromboembolism (VTE) and associated risk factors in pediatric patients with bone sarcomas treated over a 10‐year period encompassing
Sarah Kappa   +8 more
wiley   +1 more source

Universal Construction for Polar Coded Modulation

open access: yesIEEE Access, 2018
Recently, the polarization weight (PW), independent of transmission channel, is proposed to construct the polar codes based on the partial orders (POs) of the polarized bit channels (PBCs).
Dekun Zhou, Kai Niu, Chao Dong
doaj   +1 more source

Certain partial orders on semigroups [PDF]

open access: yes, 2001
summary:Relations introduced by Conrad, Drazin, Hartwig, Mitsch and Nambooripad are discussed on general, regular, completely semisimple and completely regular semigroups.
Petrich, Mario
core   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

An integrated control method for designing non-blocking supervisors using Petri nets

open access: yesAdvances in Mechanical Engineering, 2017
This article presents an efficient integrated approach on designing a non-blocking supervisor for the most general classes of Petri nets, called G -systems that allow multiple resource acquisitions.
Mi Zhao
doaj   +1 more source

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