Results 121 to 130 of about 13,061 (285)

On solutions of fractional differential equations for the mechanical oscillations by using the Laplace transform

AIMS Mathematics
<p>In this article, we employ the Laplace transform (LT) method to study fractional differential equations with the problem of displacement of motion of mass for free oscillations, damped oscillations, damped forced oscillations, and forced oscillations (without damping).
Changdev P. Jadhav, Tanisha B. Dale, Vaijanath L. Chinchane, Asha B. Nale, Sabri T. M. Thabet, Imed Kedim, Miguel Vivas-Cortez   +6 more
openaire   +2 more sources

Transient thermal modelling of green anode cooling in the aluminium industry

The Canadian Journal of Chemical Engineering, EarlyView.
Summary of the methodology. Abstract Anodes, which are used in electrolytic aluminium production, are made by mixing dry aggregate (petroleum coke, rejected anodes, and butts) with coal tar pitch, compacting the resulting paste (green anode), and baking (baked anode). After compaction, the anodes are cooled to maintain their structural integrity before
Mohammadhossein Dabaghi, Duygu Kocaefe, Yasar Kocaefe   +2 more
wiley   +1 more source

DiffPRFs:random forest under differential privacy

Tongxin xuebao, 2016
A differential privacy algorithm DiffPRFs based on random forests was proposed.Exponential mechanism was used to select split point and split attribute in each decision tree building process,and noise was added according to Laplace mechanism.Differential
Hai-rong MU, Li-ping DING, Yu-ning SONG, Guo-qing LU   +3 more
doaj   +2 more sources

Application of dynamic modelling and model‐based predictive control to enhance a cooling tower

The Canadian Journal of Chemical Engineering, EarlyView.
Model predictive control (MPC) applied to improve the operation of cooling towers. Abstract Model predictive control (MPC) differs from traditional feedback control by making predictions within a time horizon, providing better control actions for the process.
Douglas de Almeida Giardini, Adriana Guglielmi Ranieri Miranda, Wilson Hideki Hirota, Bruno Faccini Santoro, José Ermirio Ferreira de Moraes   +4 more
wiley   +1 more source

The Correlated Gaussian Sparse Histogram Mechanism [PDF]

International audienceWe consider the problem of releasing a sparse histogram under $(\varepsilon, \delta)$-differential privacy. The stability histogram independently adds noise from a Laplace or Gaussian distribution to the non-zero entries and removes
Lebeda, Christian Janos, Retschmeier, Lukas   +1 more
core   +3 more sources

A Fractional Differential Equation Model and Dynamic Analysis of Animal Avoidance Learning

Fractal and Fractional
This article employs a fractional differential equation model to probe the dynamic mechanism of animal avoidance learning and memory retention. This model encompasses both linear and nonlinear scenarios.
Kaihong Zhao
doaj   +1 more source

The Recovery of Weak Impulsive Signals Based on Stochastic Resonance and Moving Least Squares Fitting

, 2014
In this paper a stochastic resonance (SR)-based method for recovering weak impulsive signals is developed for quantitative diagnosis of faults in rotating machinery.
Gu, Fengshou, Guanghua Xu, Fengshou Gu, Jiang, Kuosheng, Kuosheng Jiang, Lin Liang, Tao, Tangfei, Xu, Guanghua, Liang, Lin, Tangfei Tao   +9 more
core   +1 more source

Impact of QSW‐ZVS on Input EMI Filter Design in DC‐DC Converters

International Journal of Circuit Theory and Applications, EarlyView.
This paper analyzes the impact of quasi‐square wave zero voltage switching (QSW‐ZVS) on passive EMI filter design for DC‐DC buck converters. The extra element theorem (EET) is used to derive the design quantities that ensure converter performance is not altered, and the resulting damping element values are compared with those of traditional converters.
Silvia Simone, Amirali Hosseini, Francesco Gabriele, Fabio Pareschi   +3 more
wiley   +1 more source

Kinetic Contribution to the Arbitrary Order Odd Frequency Moments of the Dynamic Structure Factor

Contributions to Plasma Physics, EarlyView.
ABSTRACT An exact expression is derived for the kinetic contribution to the odd (arbitrary order) frequency moments of the dynamic structure factor via a finite summation that features averages of even (all lower orders) powers of the momentum over the exact momentum distribution.
Panagiotis Tolias, Tobias Dornheim, Jan Vorberger   +2 more
wiley   +1 more source

Application of Operational Calculus and Laplac Exchanges to Electrical Mechanics [PDF]

Operational calculus and Laplace substitution are powerful tools in the analysis of electrical mechanics and control systems, simplifying mathematical models of systemsand adapting them to the calculation of specific responses. These methods are widely used to reduce technical errors, improve system efficiency and optimize.
Xalilov, Murodiljon Durbek ugli, Komiljonov, Bobur   +1 more
openaire