Gearbox Fault Diagnosis Based on Adaptive Variational Mode Decomposition–Stationary Wavelet Transform and Ensemble Refined Composite Multiscale Fluctuation Dispersion Entropy by Xiang Wang, Yang Du, Xiaoting Ji

“…This paper proposes a method for gearbox fault diagnosis based on adaptive variational mode decomposition–stationary wavelet transform (AVMD-SWT) and ensemble refined composite multiscale fluctuation dispersion entropy (ERCMFDE). …”
Get full text

Sound absorption coefficient from composites made from coconut fiber, paper, and styrofoam by Amalia Ma'rifatul Maghfiroh

“…Cylindrical composite specimens were made with different variations in composition and analyzed the differences in sound dampening ability in various compositions. …”
Get full text

TO DETERMINATION OF INFLUENCE FOR VARIATIONS IN LASER TREATMENT MODES ON TRIBOLOGICAL CHARACTERISTICS OF CUTTING TOOL by O. V. Diachenko, M. A. Kardapolova, O. V. Seriakova

Get full text

Safety coefficients for products made of composite materials using the example of a compressed cylindrical shell by V. N. Nagovitsin, Y. P. Pokhabov, E. A. Ivanov, A. Y. Pokhabov

“…The main objective of this study is to obtain a method of calculation safety coefficients for composite materials products in order to compensate for the actual variations in the mechanical characteristics of composite materials as a result of the existing manufacturing technologies used, which will ensure high reliability of composite materials structures used in space technology and other industries. …”
Get full text

Comparative Analysis of BTM Systems Made of a Fireproof Composite Material with Nano Boron Nitride by Ioan Szabo, Florin Mariasiu, Thomas Imre Cyrille Buidin

“…The paper presents a numerical analysis of the possibilities of replacing the aluminum serpentines in the current construction of battery thermal management systems (BTMS) with cooling serpentines made of fireproof composite materials with high heat transfer parameters (fireproof epoxy resin + nano boron nitride). …”
Get full text

Fault Feature Extraction of Gearbox based on Adaptive VMD by Wenyao Li, Wengang Yang

Subjects: Get full text

Composite Noise Reduction Method for Internal Leakage Acoustic Emission Signal of Safety Valve Based on IWTD-IVMD Algorithm by Shuxun Li, Xiaoqi Meng, Jianjun Hou, Kang Yuan, Xiaoya Wen

Get full text

Prediction of Gait Neurodegenerative Diseases by Variational Mode Decomposition Using Machine Learning Algorithms by P. Visvanathan, P.M. Durai Raj Vincent

“…The proposed research work is developed using the gait neurodegenerative data composed of gait signals collected from physionet database. The composite non stationary and nonlinear gait signals are decomposed into different modes of Intrinsic Mode Function (IMF) using Variational Mode Decomposition (VMD). …”
Get full text

Identification of the elastic characteristics of a composite material based on the results of tests for the stability of panels made from it by R.A. Kayumov, B.F. Tazyukov, I.Z. Muhamedova, F.R. Shakirzyanov

“…Numerical solutions of the model problems show that the solution of the problem is stable to variations of the original data. The proposed approach allows to obtain the calculated mechanical characteristics of the composite material close to true even in the case of a considerable variation in the stiffness characteristics of the composite material from sample to sample and errors in determining the critical load.…”
Get full text

Variable-Diameter Deployable Structure Composite Preforms Made by Braiding and Needle-Punching Integrated Forming Technology by Zhengxi Zhou, Zitong Guo, Zhongde Shan, Zheng Sun, Jun Zhang, Fengchen Geng, Yaoyao Wang, Tianzheng Yang, Zhiqi Zhuang

Get full text

A novel fault diagnosis method for gearbox based on RVMD and TELM with composite chaotic grey wolf optimizer by Xuebin Huang, Anfeng Xu, Hongbing Liu, Bingcheng Ye

Subjects: “…Robust variational mode decomposition…”
Get full text

Synoptic Variation Drives Genetic Diversity and Transmission Mode of Airborne DNA Viruses in Urban Space by Aihua Deng, Junyue Wang, Lai Li, Ruilin Shi, Xuemin Li, Tingyi Wen

Get full text

Crude Oil Futures Price Forecasting Based on Variational and Empirical Mode Decompositions and Transformer Model by Linya Huang, Xite Yang, Yongzeng Lai, Ankang Zou, Jilin Zhang

“…More specifically, we employ the VMD technique to decompose the original sequence into variational mode filtering (VMF) and a residual sequence, followed by using EMD to decompose the residual sequence. …”
Get full text

Compositional Analysis of Grape Berries: Mapping the Global Metabolism of Grapes by Huanteng Hou, Yufei Li, Shen Zhou, Ran Zhang, Yuanyue Wang, Long Lei, Chenkun Yang, Sishu Huang, Hang Xu, Xianqing Liu, Min Gao, Jie Luo

Get full text

STUDY PORE CHARACTERIZATION OF γ-ALUMINA – ACTIVATED CARBON COMPOSITE MADE OF CASSAVA PEELS (Manihot esculenta Cranz) by Hartini Hartini, Yuniawan Hidayat, Mudjijono Mudjijono

“…A composite of γ-alumina and activated carbon made of cassava peels was studied in terms of its pore structures and its properties. …”
Get full text

Causes and consequences of material variation in avian nest building by Shoko Sugasawa, Mike Hansell, Maggie Reilly, Susan D. Healy

“…The warblers breeding in England show considerable variation in nest materials: some nests are made almost entirely of heather, while others contain a lot of grass. …”
Get full text

The Effect of Raw Material Composition on the Quality of Briquette Made from Matoa (Pometia pinnata) Leaves Using Organic Adhesive by Asifa Asri, Qariatus Shalihah, Bintoro Siswo Nugroho

Get full text

Creep Modeling in a Composite Rotating Disc with Thickness Variation in Presence of Residual Stress by Vandana Gupta, S. B. Singh

Get full text

Tensile Mechanical Properties and Failure Modes of a Basalt Fiber/Epoxy Resin Composite Material by Jingjing He, Junping Shi, Xiaoshan Cao, Yifeng Hu

“…Uniaxial tensile tests of basalt fiber/epoxy (BF/EP) composite material with four different fiber orientations were conducted under four different fiber volume fractions, and the variations of BF/EP composite material failure modes and tensile mechanical properties were analyzed. …”
Get full text

Study of Magnetic Features of NiFe Feromagnetic Materials at Various Composition Variations by Simulation Methods by Firman Hanif Romadhon, Lutfi Rohman, Imam Rofi’i

Get full text