Results 11 to 20 of about 25,017 (253)

Absolute Instantaneous Optimal Control Performance Index for Active Vibration Control of Structures under Seismic Excitation

open access: yesShock and Vibration, 2019
In this paper, an instantaneous optimal control performance index for active control of structures under seismic excitation is analytically proposed. Absolute velocity and absolute displacement terms are implemented to the conventional state vector terms
Arcan Yanik
doaj   +2 more sources

Design of Morlet wavelet neural networks integrated with sequential quadratic programming to analyze the dynamics of Ebola virus disease

open access: yesResults in Engineering
Ebola virus disease is caused by a virus that originates in flying foxes, or fruit bats. These bats may spread the virus to humans. The proposed model partitions the infected population into unaware and aware, and has a hospitalized compartment.
Asifa Ashraf   +4 more
doaj   +2 more sources

COMPUTING IMAGES OF GALOIS REPRESENTATIONS ATTACHED TO ELLIPTIC CURVES

open access: yesForum of Mathematics, Sigma, 2016
Let $E$ be an elliptic curve without complex multiplication (CM) over a number field $K$
ANDREW V. SUTHERLAND
doaj   +1 more source

Wavelet shrinkage using adaptive structured sparsity constraints [PDF]

open access: yes, 2015
Structured sparsity approaches have recently received much attention in the statistics, machine learning, and signal processing communities. A common strategy is to exploit or assume prior information about structural dependencies inherent in the data ...
Tomassi, Diego Rodolfo   +7 more
core   +1 more source

New linearization and reweighting for simulations of string sigma-model on the lattice

open access: yesJournal of High Energy Physics, 2020
We study the discretized worldsheet of Type IIB strings in the Gubser-Klebanov-Polyakov background in a new setup, which eliminates a complex phase previously detected in the fermionic determinant. A sign ambiguity remains, which a study of the fermionic
L. Bianchi   +4 more
doaj   +1 more source

Robust Symbol Detection in Large-Scale Overloaded NOMA Systems

open access: yesIEEE Open Journal of the Communications Society, 2021
We a framework for the design of low-complexity and high-performance receivers for multidimensional overloaded non-orthogonal multiple access (NOMA) systems.
Hiroki Iimori   +6 more
doaj   +1 more source

Class groups of quadratic fields of 3-rank at least 2: Effective bounds

open access: yes, 2008
In this paper, we give parametric families of both real and complex quadratic number fields whose class group has 3-rank at least 2. As a consequence, we obtain that for all large positive real numbers x, the number of both real and complex quadratic ...
Luca, Florian, Pacelli, Allison M.
core   +1 more source

Fixed Effects and Random Effects Estimation of Higher-Order Spatial Autoregressive Models with Spatial Autoregressive and Heteroskedastic Disturbances [PDF]

open access: yes, 2014
This paper develops a unified framework for fixed and random effects estimation of higher-order spatial autoregressive panel data models with spatial autoregressive disturbances and heteroskedasticity of unknown form in the idiosyncratic error component.
Badinger, Harald, Egger, Peter
core   +1 more source

Optimization of Srp/HAP for removal of fluoride,iron and manganese from groundwater in mining area by response surface methodology

open access: yesMeitan kexue jishu, 2023
In order to solve the serious problems of F−、Fe2+ and Mn2+ in underground water of mining area, the serpentine loaded hydroxy-apatite (Srp/HAP) composite adsorbent was prepared by wet chemical coprecipitation method, and the simultaneous removal of ...
Xilin LI   +7 more
doaj   +1 more source

Power integral bases in cubic and quartic extensions of real quadratic fields

open access: yes, 2019
Investigations of monogenity and power integral bases were recently extended from the absolute case (over Q) to the relative case (over algebraic number fields). Formerly, in the relative case we only succeeded in calculating generators of power integral
László Remete   +3 more
core   +1 more source

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