Results 91 to 100 of about 1,412,537 (346)

The tree of primes in a field

open access: yesCubo, 2010
The product formula of algebraic number theory connects finite and infinite primes in a stringent way, a fact, while not hard to be checked, that has never ceased to be tantalizing.
Wolfgang Rump
doaj  

Computational modeling and analysis for the effect of magnetic field on rotating stretched disk flow with heat transfer

open access: yesPropulsion and Power Research, 2021
Time-dependent viscous fluid flow due to a stretchable rotating disk is investigated. Magnetic field is applied in vertical direction to the disk. Temperature equation is assisted with Joule heating effect.
Salman Ahmad   +4 more
doaj  

Simultaneous Multi‐Resonant Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence from Biluminescent Nitrogen‐Containing Indolocarbazoles

open access: yesAdvanced Science, EarlyView.
An extremely rare type of organic biluminescent emission is reported that consists of delayed emission resulting from both the fluorescence (multi‐resonance thermally activated delayed fluorescence) and phosphorescence spectra at room temperature, and the lifetimes of the two processes exhibit opposing dependence with temperature.
Oliver S. Lee   +5 more
wiley   +1 more source

Numerical Study of Convective Flow of Casson Fluid Through an Infinite Vertical Plate with Induced Magnetic Field

open access: yesEast European Journal of Physics
The present objective is to numerically analyze the induced magnetic field (IMF) effect of an unsteady MHD flow of Casson fluid through two infinite vertical plates. The effect of radiative heat has been scrutinized. Governing non-dimensional PDEs of the
Hiren Deka, Parismita Phukan
doaj   +1 more source

Spintronic Memtransistor Leaky Integrate and Fire Neuron for Spiking Neural Networks

open access: yesAdvanced Electronic Materials, EarlyView.
Spintronic memtransistor neurons based on domain walls enable energy‐efficient, field‐gated, and current‐controlled LIF functionality for neuromorphic computing, as demonstrated. When integrated into spiking neural network architectures, these devices achieve >96% pattern recognition accuracy, demonstrating high performance, scalability, and mem ...
Aijaz H. Lone   +7 more
wiley   +1 more source

On class numbers of algebraic number fields

open access: yesJournal of Number Theory, 1970
AbstractLet M = Πi = 1t qiei, N = Πj = 1t qjfj be two natural numbers based on the same set of primes q1,…, qt, where the ei are positive.Theorem. There exist infinitely many normal extensions of the field of rational numbers of degree M with class number divisible by N. If M is not equal to 2, there also exist infinitely many nonnormal extensions with
openaire   +2 more sources

Graph Attention Neural Networks for Interpretable and Generalizable Prediction of Janus III–Vi Van Der Waals Heterostructures

open access: yesAdvanced Intelligent Discovery, EarlyView.
A crystal graph neural network based on the attention mechanism is proposed in this work. The model dynamically weights features through the attention mechanism, enabling precise prediction of properties of material from structural features. Here, taking Janus III–VI van der Waals heterostructures as a representative case, the properties have been ...
Yudong Shi   +7 more
wiley   +1 more source

A Shared Control Method of Multiobjective Motion Fusion for Surgical Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper proposes an innovative shared control method that can handle multiple objectives task by integrating various types of controllers. It not only takes into account the priorities among the objectives but also allows for the flexible addition or removal of objective controllers.
Xilin Xiao   +7 more
wiley   +1 more source

Localized and Extended Phases in Square Moiré Patterns

open access: yesAnnalen der Physik, EarlyView.
Rotated superimposed lattices in two dimensions, the termed moiré patterns, represent a clear example of how the structure affects the physical properties of a particle moving on it. A robust numerical treatment of continuous and discrete models leads to confirm that while localized states result from angles that produce non‐commensurable lattices ...
C. Madroñero   +2 more
wiley   +1 more source

The lifting of an exponential sum to a cyclic algebraic number field of prime degree

open access: yes, 1998
Let E be a cyclic algebraic number field of prime degree. We prove an identity which lifts an exponential sum similar to the Kloosterman sum to an exponential sum taken over certain algebraic integers in E.
Y. Ye
semanticscholar   +1 more source

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