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  1. 2741

    GA-PE-VMD and MSE Methods for Milling Chatter Feature Extraction of Thin-walled Parts by WANG Hanbin, LI Maoyue, LIU Xianli, WANG Zhixue, MENG Boyang

    Published 2023-04-01
    “… In the high-speed milling of aviation parts, due to the low stiffness of thin-walled structure, it is easy to produce chatter. Chatter leads to poor surface quality, dimensional error and reducing the service life of tools and machines.Therefore, a reliable detection method is needed to identify chatter.Aiming at the problem of chatter detection in the milling process of thin-walled structures, a chatter feature extraction method of thin-walled parts based on optimal variational mode decomposition and multi-scale sample entropy is proposed.Firstly, in order to solve the problem of parameter selection in variational modal decomposition, a parameter adaptive method based on genetic algorithm optimization and minimum permutation entropy is proposed. …”
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  2. 2742
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  5. 2745

    Spatiotemporal Characteristics of Bacterial Communities in Estuarine Mangrove Sediments in Zhejiang Province, China by Liqin Yao, Maoqiu He, Shoudian Jiang, Xiangfu Li, Bonian Shui

    Published 2025-04-01
    “…Woeseiaceae, Desulfobulbaceae, Thermoanaerobaculaceae, and Sva1033 (family of Desulfobacterota) exhibited significantly higher relative abundance in the unvegetated area, whereas Bacillaceae and S085 (family of Chloroflexi) demonstrated greater abundance in the mangrove area. Seasonal variations in bacterial community structure are primarily attributed to changes in environmental factors, including temperature and salinity. …”
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  6. 2746

    Reduced representation sequencing reveals genetic diversity and adaptive genetic divergence in Calamus rhabdocladus by Rui Gu, Ruijing Xu, Songpo Wei, Pär K. Ingvarsson, Shaohui Fan, Guanglu Liu

    Published 2025-07-01
    “…Redundancy analysis (RDA) identified the driest month (bio14) and the mean temperature of the wettest quarter (bio8) as the two most important environmental factors driving adaptive genetic variation. The Latent Factor Mixed Model (LFMM) identified 955 loci significantly associated with environmental adaptation and successfully aligned 469 genes from related species, which were enriched in functional categories involving cell structure, carbohydrate metabolism, and protein degradation. …”
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  7. 2747
  8. 2748

    Variability and conditions of abstract genre destruction in publishing discourse by Steksova, Tatiana Ivanovna, Prasko, Maxim Викторович

    Published 2025-02-01
    “…The article deals with the problem of variation of speech genres and blurring of their boundaries. …”
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  9. 2749
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    Investigating the primate fossil record using diffeomorphic deformation: what have we learnt? by Amélie Beaudet

    Published 2025-03-01
    “…One of the most challenging tasks in palaeontology is to identify the nature of the morphological variation observed in the fossil record. Accurately and quantitatively investigating morphological variation in fossil assemblages requires appropriate analytical methods. …”
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  11. 2751
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    A New Insight on El Niño Diversity: Decadal Variability in Westerly Wind Bursts by Anqi Li, Chaopeng Ji, Xianghui Fang

    Published 2025-05-01
    “…ABSTRACT El Niño‐Southern Oscillation (ENSO) is the strongest mode of interannual climate variability, characterized by fluctuations in sea surface temperature (SST) with diverse spatial structures. Recent research has identified two main flavors of El Niño events: Eastern Pacific (EP) and Central Pacific (CP) types, each associated with different physical processes and climatic impacts. …”
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  13. 2753

    Assessment of quantitative factors of variability of parameters of stockwork deposits by A. A. Makarcheva, O. I. Guskov

    Published 2016-06-01
    “…On the basis of specification areas, created in three stockwork deposites - Pervomauskaya, Sherlovaya Gora and Krutoy of Pyrkayiskiy tin ore unit, differing from each other in internal structure, the type of variation of useful components’ contents was analyzed. …”
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    Application of Prior-knowledge for Intelligent Gear Fault Diagnosis Under Variable Speed Condition by Pan Can, Li Weihua

    Published 2018-01-01
    “…The vibration mechanism analysis of gear transmission system shows that,the vibration response signal of a gear transmission system contains interference components that vary greatly with the speed and cannot reflect the fault information,the fault characteristics in amplitude spectrum of the vibration response signal have less sensitivity to the variation of running speed. These interference components can be removed with the help of prior-knowledge which is composed of structure parameters,operating parameters and the vibration mechanism of gear transmission system. …”
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  18. 2758

    Population Genetic Characteristics of the Cultivated <i>Coffea arabica</i> with Whole-Genome Resequencing by Qin Zhang, Dongxiao Ma, Yang Yang, Faguang Hu, Xingfei Fu, Guiping Li, Xiaofang Zhang, Na Wang, Dexin Liu, Ruirui Wu, Xiaofei Bi, Yuqiang Lou, Yaqi Li, Haohao Yu, Wei Yan, Yanan Li

    Published 2024-10-01
    “…Single nucleotide polymorphisms (SNPs) and insertion–deletions (InDels) were statistically analyzed. Based on SNP variations, a genetic structure analysis, phylogenetic tree construction, and principal component analysis were performed for the 61 coffee accessions. …”
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  19. 2759

    Etiologies underlying sex bias in autism spectrum disorder: a narrative review of preclinical rodent models by Taeyoung Lee, Eunha Kim

    Published 2024-04-01
    “…Although the precise cause of ASD is still unknown, certain genetic variations and environmental influences have been implicated as risk factors. …”
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