Results 1 to 10 of about 37,521 (247)

On Gray Images of Cyclic and Self-Orthogonal Codes over Fq+uFq+vFq [PDF]

open access: yesEntropy
Let p be a prime with p∉{2,5} and let q=pm. This paper studies cyclic and self-orthogonal linear codes of length n over the finite local non-Frobenius ring Rp,u,v=Fq+uFq+vFq, u2=v2=uv=vu=0.
Sami H. Saif, Alhanouf Ali Alhomaidhi
doaj   +2 more sources

Grothendieck–Serre in the quasi-split unramified case

open access: yesForum of Mathematics, Pi, 2022
The Grothendieck–Serre conjecture predicts that every generically trivial torsor under a reductive group scheme G over a regular local ring R is trivial. We settle it in the case when G is quasi-split and R is unramified.
Kęstutis Česnavičius
doaj   +1 more source

Learning accurate path integration in ring attractor models of the head direction system

open access: yeseLife, 2022
Ring attractor models for angular path integration have received strong experimental support. To function as integrators, head direction circuits require precisely tuned connectivity, but it is currently unknown how such tuning could be achieved.
Pantelis Vafidis   +3 more
doaj   +1 more source

(n − 1, n)-weakly prime submodules in direct product of modules [PDF]

open access: yesJournal of Hyperstructures, 2017
Let n ≥ 2 be a positive integer, R be a commutative ring with identity and M be a unitary R-module . In this paper we study the (n − 1, n)-weakly prime submodules of direct product of modules.
M. Ebrahimpour
doaj   +1 more source

A 479-Year Early Summer Temperature Reconstruction Based on Tree-Ring in the Southeastern Tibetan Plateau, China

open access: yesAtmosphere, 2021
Due to the lack of long-term climate records, our understanding of paleoclimatic variability in the Tibetan Plateau (TP) is still limited. In this study, we developed a tree-ring width (TRW) chronology based on tree-ring cores collected from our study ...
Yu Zhang   +3 more
doaj   +1 more source

Research on the influencing factors of thermal characteristics of high-speed grease lubricated angular contact ball bearing

open access: yesAdvances in Mechanical Engineering, 2021
The high temperature rise of grease lubricated angular contact ball bearing under high speed operation will affect the working accuracy of the bearing, and even lead to the loss of accuracy.
Chang Zhang   +3 more
doaj   +1 more source

CFD simulations of electric motor end ring cooling for improved thermal management

open access: yesScience and Technology for Energy Transition, 2022
Proper thermal management of an electric motor for vehicle applications extends its operating range. One cooling approach is to impinge Automatic Transmission Fluid (ATF) onto the rotor end ring.
Grover Ronald O.   +10 more
doaj   +1 more source

The far-ultraviolet main auroral emission at Jupiter – Part 1: Dawn–dusk brightness asymmetries [PDF]

open access: yesAnnales Geophysicae, 2015
The main auroral emission at Jupiter generally appears as a quasi-closed curtain centered around the magnetic pole. This auroral feature, which accounts for approximately half of the total power emitted by the aurorae in the ultraviolet range, is ...
B. Bonfond   +10 more
doaj   +1 more source

The Effect of Role Play and Audio-Visual Interventions Based on Local Wisdom in Enhancing Disaster Preparedness Behavior among Elementary Schoolchildren

open access: yesBabali Nursing Research, 2023
Introduction: Disaster-prone regions like Karangasem Regency, located in the Ring of Fire, are susceptible to earthquakes and volcanic eruptions. It becomes imperative to ensure that students possess adequate disaster preparedness knowledge and skills ...
Ni Luh Seri Astuti   +4 more
doaj   +1 more source

Desingularización de Superficies Casi Ordinarias Irreducibles

open access: yesSelecciones Matemáticas, 2018
The aim of this work is to study and describe the resolution or desingularization of irreducible quasi ordinary surfaces, following Lipman’s approach ( [6], [7]).
Rina Roxana Paucar Rojas
doaj   +1 more source

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