Results 41 to 50 of about 4,607,794 (314)

Advanced Dynamic Thermal Vibration of Laminated FGM Plates with Simply Homogeneous Equation by Using TSDT and Nonlinear Varied Shear Coefficient

open access: yesApplied Sciences, 2022
The effects of advanced nonlinear varied shear coefficient and third-order shear deformation theory (TSDT) on the dynamic responses of thick functionally graded material (FGM) plates under thermal vibration are investigated.
Chih-Chiang Hong
doaj   +1 more source

Nonlinear infiltration with a singular diffusion coefficient

open access: yesDifferential and Integral Equations, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir   +2 more
wiley   +1 more source

Determination of nonlinear permeability parameters for shear zones in Baihetan Hydropower Station by in-situ tests

open access: yesYantu gongcheng xuebao, 2020
Based on the Forchheimer equation of generalized nonlinear permeability, an in-situ test method for determining the permeability parameters of nonlinear flow in shear zones is proposed. Based on the field tests of Baihetan Hydropower Station, it is found
ZHOU Zhi-fang 1, LI Si-jia 1, WANG Zhe 1, GUO Qiao-na 1, SHI An-chi 2, CHEN Meng 1, SHEN Qi 1
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Slow-Light-Enhanced Nonlinear Characteristics in Slot Waveguides Composed of Photonic Crystal Nanobeam Cavities

open access: yesIEEE Photonics Journal, 2013
We investigate slow-light-enhanced nonlinear characteristics in slot waveguides composed of photonic crystal (PC) nanobeam cavities. To evaluate the effective nonlinear coefficient, numerical simulations are performed by using 3-D vector finite-element ...
Shuntaro Makino   +3 more
doaj   +1 more source

The coefficient of dynamism of a nonlinear oscillator

open access: yesBulletin of the National Technical University «KhPI» Series: Dynamics and Strength of Machines, 2017
Nonlinear oscillations caused by the initial deviation of the oscillator from the equilibrium position or the initial velocity given to it in this position are considered. It is assumed that the restoring force is proportional to the sine of the displacement of the oscillatory system. There are two variants of the sine: trigonometric and hyperbolic. In
Olshanskiy, V. P., Olshanskiy, S. V.
openaire   +3 more sources

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera   +8 more
wiley   +1 more source

Methodical inaccuracy of the Z-scan method for few-cycle terahertz pulses

open access: yesScientific Reports, 2019
Modern sources of THz radiation generate high-intensity pulses allowing to observe nonlinear effects in this spectral range. To describe many nonlinear effects theoretically, it is necessary to know the nonlinear refractive index coefficient of optical ...
Maksim Melnik   +4 more
doaj   +1 more source

Influence of the accommodation coefficient on nonlinear bubble oscillations [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2010
This paper numerically investigates the effect of mass transfer processes on spherical single bubble dynamics using the Hertz–Langmuir–Knudsen approximation for the mass flux across the interface. Bubble behavior, with and without mass transfer, is studied for different values of pressure wave amplitude and frequency, as well as initial bubble radius ...
Fuster, Daniel   +2 more
openaire   +3 more sources

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