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ANALYZING ENHANCEMENT AND CONTROL OF KERR-NONLINEAR COEFFICIENT IN A THREE-LEVEL V-TYPE INHOMOGENEOUSLY BROADENED ATOMIC MEDIUM

open access: diamondTạp chí Khoa học Đại học Đà Lạt, 2021
The analytical expression for the self-Kerr nonlinear coefficient in a three-level V-type atomic medium is found in the presence of the Doppler effect.
Le Van Doai, Dinh Xuan Khoa
doaj   +3 more sources

Performance Analysis and Coefficient Generation Method of Parallel Hammerstein Model Under Underdetermined Condition [PDF]

open access: yesSensors
Nonlinear signal models are widely used in power amplifier predistortion, full-duplex self-interference cancellation, and other scenarios. The parallel Hammerstein (PH) model is a typical nonlinear signal model, but its serial and parallel hybrid ...
Nanzhou Hu   +4 more
doaj   +2 more sources

Mechanical structural health prognosis with nonlinear mixed frequency ultrasonic signal analysis [PDF]

open access: yesE3S Web of Conferences, 2021
In order to detect the early fatigue crack of mechanical components simply, this paper puts forward the ultrasonic testing technology of different side collinear mixing.
Chen Hanxin   +4 more
doaj   +1 more source

Effect of sintering time on microstructure and electrical properties of varistor ceramics ZnO-CoO-SLS glass [PDF]

open access: yesScience of Sintering, 2021
The influence of sintering time on the microstructure and electrical properties of ZnO-CoO-SLS (soda lime silica) glass varistor based ceramics has been investigated.
Ismail Nur Quratul Aini   +2 more
doaj   +1 more source

Thermal Vibration of Thick Functionally Graded Material Spherical Shells by Using Third-order Shear Deformation Theory and Simply Homogeneous Equation [PDF]

open access: yesComputational Engineering and Physical Modeling, 2023
The effect of third-order shear deformation theory (TSDT) on the functionally graded material (FGM) thick spherical shells under sinusoidal heating loads can be studied by using the generalized differential quadrature (GDQ) method.
C.C. Hong
doaj   +1 more source

Fatigue Damage Evaluation of Compressor Blade Based on Nonlinear Ultrasonic Nondestructive Testing

open access: yesJournal of Marine Science and Engineering, 2021
Nonlinear ultrasonic testing is highly sensitive to micro-defects and can be used to detect hidden damage and defects inside materials. At present, most tests are carried out on specimens, and there are few nonlinear ultrasonic tests for fatigue damage ...
Pengfei Wang   +4 more
doaj   +1 more source

Design and Simulation of Photonic Crystal Fiber for Liquid Sensing

open access: yesPhotonics, 2021
A simple hexagonal lattice photonic crystal fiber model with liquid-infiltrated core for different liquids: water, ethanol and benzene, has been proposed.
Abdul Mu’iz Maidi   +6 more
doaj   +1 more source

An Interface Pressure Detection Method of Cable Silicone Rubber-XLPE Based on Nonlinear Ultrasound

open access: yesApplied Sciences, 2023
The interface pressure between the cable attachment and the body is crucial for the stable long-term operation of the cable. To solve the issue of interface insulation characteristics’ damage caused by the pressure transducer measurement method, a non ...
Chunhua Fang   +7 more
doaj   +1 more source

Predicting the Life of Varistors via a Nonlinear Coefficient Based on a Small-Scale Data Model

open access: yesApplied Sciences, 2023
With the great leaps forward in the development of the railway, the importance of safe operation and maintenance has become increasingly prominent. Varistor is the key component insurge protective devices for railway communication and signaling equipment,
Xiaofei Ruan   +3 more
doaj   +1 more source

NONLINEAR CHARACTERISTICS OF SQUARE SOLID-CORE PHOTONIC CRYSTAL FIBERS WITH VARIOUS LATTICE PARAMETERS IN THE CLADDING

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2022
Nonlinear characteristics of fused silica, solid-core photonic crystal fibers (PCFs) with a square array of air holes are studied numerically. We present a novel design that emphasizes the difference in air hole diameters in the photonic cladding.
Tran Bao Tran Le   +6 more
doaj   +1 more source

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