Showing 81 - 100 results of 154 for search 'variational mode composition', query time: 0.14s Refine Results
  1. 81

    Bearing fault diagnosis for high-speed train based on improved VMD and APSO-SVM by ZHANG Qingsong, ZHANG Bing, QIN Yi

    Published 2022-01-01
    “…Aiming at the problem that the fault information of high-speed train wheel bearing is weak and difficult to extract, a fault feature extraction and recognition model for vibration signal of high-speed train bearing based on variational mode decomposition and adaptive particle swarm optimization-support vector machine was proposed. …”
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    Article
  2. 82

    A Model Based on Neural Network to Predict Surface Settlement During Subway Station Construction: A Case Study of the Dongba-Zhongjie Station in Beijing, China by Jiaqi Zhang, Hua Jiang, Jinsen Wang, Jili Feng

    Published 2025-05-01
    “…To overcome challenges such as missing on-site settlement data and a limited number of monitoring points, this study proposes a composite prediction model that integrates finite element analysis, a time-series interval GA-BP neural network, and variational mode decomposition (VMD) techniques. …”
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  3. 83

    Multi-fault diagnosis and damage assessment of rolling bearings based on IDBO-VMD and CNN-BiLSTM by Lihai Chen, Xiaolong Bai, Yonghui He, Dong Jia, Yican Li, Zhenshui Li

    Published 2025-08-01
    “…It combines IDBO (Improved Dung beetle optimizer) optimised VMD (Variational mode decomposition) and CNN-BiLSTM (convolutional neural network-Bi-directional Long Short-Term Memory) to achieve rolling bearing conformity fault diagnosis and damage assessment. …”
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    Article
  4. 84

    Structural and optical study of alternating layers of In and GaAs prepared by magnetron sputtering by S. Torres- Jaramillo, C. Pulzara-Mora, R. Bernal-Correa, M. Venegas de la Cerda, S. Gallardo-Hernández, M. López-López, A. Pulzara-Mora

    Published 2019-11-01
    “…This allowed to determine the transverse and longitudinal optical modes of GaAs and InAs, characteristic of a two-mode behavior. …”
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    Article
  5. 85

    A denoising method for concrete cracking electromagnetic signals based on grey wolf optimized VMD-WT by HOU Chunyao, TAN Dawen, MAO Yanpian, ZHANG Hongyi, ZHOU Yi, ZHANG Jinghua, HUANG Songling

    Published 2025-02-01
    “…This criterion is used to determine the optimal number of modes and the penalty factor for variational mode decomposition (VMD). …”
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  6. 86

    Comparison of Rhizosphere Microbial Diversity in Soybean and Red Kidney Bean Under Continuous Monoculture and Intercropping Systems by Huibin Qin, Aohui Li, Shuyu Zhong, Yingying Zhang, Chuhui Li, Zhixin Mu, Haiping Zhang, Jing Wu

    Published 2025-07-01
    “…We observed that, under the intercropping mode, the composition of both bacteria and fungi more closely resembled that of soybean monocropping. …”
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  7. 87

    Raman Spectroscopic Characterization of Endodontic Biofilm Matrices by Tatiana Ramirez-Mora, Claudia Dávila-Pérez, Fernando Torres-Méndez, Grettel Valle-Bourrouet

    Published 2019-01-01
    “…Raman spectroscopy and confocal laser scanning microscopy were used to identify the biochemical composition and structure of the biofilm matrices. Spectra originating from the biofilms of two endodontic pathogens show the presence of carbohydrates, proteins, fatty acids, and nucleic acids in all samples; however, variation in the levels of expression of these biomolecules allows spectroscopic differentiation of the biofilms using principal component analysis. …”
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    Article
  8. 88

    Comparative and Phylogenetic Analysis of <i>Anthurium andraeanum</i> Hybridization Based on Molecular and Morphological Traits by Yingwen Pan, Jiatong Li, Chaozu He

    Published 2024-10-01
    “…Hybridization is considered an important mode of species evolution, but the genetic evolutionary process of <i>Anthurium andraeanum</i> hybridization is still poorly characterized. …”
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    Article
  9. 89

    Practical application of correlation-regression analysis results for predicting the quality of coiled rebar products by S. A. Savchenko, A. B. Sychkov

    Published 2025-04-01
    “…The influence of air-cooling mode variations on the mechanical properties of Ø8 mm and Ø10 mm A500C-grade rebar with a periodic profile of type 2f, in accordance with GOST 34028–2016, has been determined. …”
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  10. 90

    Genetic features of tourmaline from the magnesian skarns of Kuhilal deposit, Southwestern Pamir by A. K. Litvinenko, E. I. Romanova, O. A. Yakushina

    Published 2023-06-01
    “…Tourmaline of this type is characterized by a strong variation in ferruginosity and a significant content of Ca. …”
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  11. 91

    Evolution of enteric viruses in the progression of colorectal cancer via the adenoma-carcinoma sequence pathway by Ying Yang, Dan Wang, Longlin Li, Jieyu Song, Xianglan Yang, Jun Li

    Published 2025-05-01
    “…In conclusion, the changes in the composition and function of enteric viruses in the progression of CRC via adenoma-carcinoma sequence pathway were analyzed in this study, and these changes hold certain importance for exploring the role of enteric viruses in the occurrence of this disease; however, their mode of action and specific mechanisms require further investigation.…”
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  12. 92

    Exploring the causal relationship between obesity, immune cell characteristics and cervical cancer risk using Mendelian randomization by HongYin Cui, Jingjing Zhang, Xiaolin Lang, Changchang Huang, SongQing Yang

    Published 2025-07-01
    “…Obesity has been linked to numerous cancers through mechanisms involving hormonal disruption and chronic inflammation, while immune function variations may influence individual cancer susceptibility. …”
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    Article
  13. 93

    ANALYSIS OF SURFACE DEFECTS OF ALUMINUM AND ITS ALLOYS WITH A SCANNING KELVIN PROBE by A. K. Tyavlovsky, A. L. Zharin, O. K. Gusev, R. I. Varabei, N. I. Muhurov, G. V. Sharonov, K. U. Pantsialeyeu

    Published 2017-02-01
    “…An output signal of electrometric probe depends on a number of physical and chemical parameters of surface including chemical composition variations, stresses, dislocations, crystallographic orientation of a surface, etc. …”
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    Article
  14. 94

    Miroir du théâtre : mise en abyme et maniérisme dans The Convent of Pleasure de Margaret Cavendish (1668) by Line Cottegnies

    Published 2006-04-01
    “…The term, borrowed from the French critical tradition, refers, among others, to peculiar modalities of imitation and variation and allows us to define precise modes of composition. …”
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  15. 95

    Effects of wet environment on physical, chemical and mechanical properties of four core buildup materials by Yuanyuan Chen, Qingsong Jiang, Yongjie Wei

    Published 2025-01-01
    “…All tested specimens exhibited a two-part fracture mode, with voids and pores inevitably present. These findings demonstrate that monomer composition predominantly governs the physicochemical stability of core buildup materials, whereas filler characteristics (loading, content, and distribution) dictate their mechanical performance. …”
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  16. 96

    Evaluation of oven baking and air-frying as potential alternatives of deep frying, considering PM2.5 and PAHs emissions from cooking animal- and plant-based protein foods by Szu-Yun Wu, Kuang-Mao Chiang, Shih-Chun Candice Lung, Yu-Cheng Chen, Wen-Harn Pan

    Published 2025-12-01
    “…Previous studies indicate variations in aerosol types and concentrations during deep-frying are attributed to differences in of ingredient composition such as foods cooked and oil used. …”
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    Article
  17. 97

    Brake rigging dynamic simulation under braking on a track section with irregularities (the case of a passenger car) by I. A. Yaitskov, V. V. Kosarevskii

    Published 2020-03-01
    “…The work objectives include the development of a “rigging brakeblock -wheel working surface” contact module in a full-scale computer model of a passenger car in the “Universal Mechanism” software package; and a computer simulation of the braking operating mode from 50 to 32 km/h considering vertical and horizontal track rail irregularities for determining the mechanism of variation of the longitudinal acceleration of the brakeblock and its angular acceleration. …”
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  18. 98

    Differential Gut Microbiome Profiles in Long-Distance Endurance Cyclists and Runners by Guy Shalmon, Rawan Ibrahim, Ifat Israel-Elgali, Meitar Grad, Rani Shlayem, Guy Shapira, Noam Shomron, Ilan Youngster, Mickey Scheinowitz

    Published 2024-12-01
    “…Both alpha and beta diversity of the bacterial communities were evaluated to identify compositional variations between the groups. Each participant completed a maximal oxygen consumption test and a time-to-exhaustion test at 85% of the measured VO2max. …”
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  19. 99

    Comparison of polymerization behaviors, microhardness and compressive strength between bulk-fill resin and dual-cured core resin by Hye Jeong Kim, Jiyoung Kwon, Hyun-Jung Kim, Reuben H. Kim, Duck-Su Kim, Ji-Hyun Jang

    Published 2025-07-01
    “…Two dual-cured core resin composites were named as follows, CLD, CLS (Luxacore Z, in dual-cured mode and self-cured (SC) mode); CAD and CAS (Any-Core, in dual-cured mode and SC mode). …”
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  20. 100

    Two complementing in vivo selection systems based on CCA-trimming exonucleases as a tool to monitor, select and evaluate enzymatic features of tRNA nucleotidyltransferases by Karolin Wellner, Josefine Gnauck, Dorian Bernier, Stephan H. Bernhart, Heike Betat, Mario Mörl

    Published 2025-12-01
    “…This approach revealed unexpected requirements for amino acid composition in two motifs and gives new insights into the mechanism of CCA addition. …”
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    Article