Showing 101 - 120 results of 6,472 for search 'aiming variations methods', query time: 0.21s Refine Results
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    Bearing Fault Diagnosis Based on Parameter Optimized VMD and ELM with Improved SSA by Yang Sen, Wang Hengdi, Cui Yongcun, Li Chang, Tang Yuanchao

    Published 2023-10-01
    “…Aiming at the problem that the initial fault signal of rolling bearings is weak and the fault characteristic is difficult to extract, this study proposes a rolling bearing fault diagnosis method based on variational modal decomposition (VMD) for adaptive parameter optimization based on the improved sparrow search algorithm (SSA) and the extreme learning machine (ELM) with multi-layer feature vector fusion. …”
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    Temporal and spatial variations in the effect-based ecotoxicological assessment of streams by Delia Hof, Thomas Bing, Sebastian Heß, Jens Mayer, Jörg Oehlmann, Matthias Oetken

    Published 2024-09-01
    “…However, there is a need to develop a comparable ecotoxicological assessment system for surface waters as for chemical and ecological status. This study aims to contribute to this discourse by investigating the temporal and spatial variation of ecotoxicological effects by assessing water grab samples of 15 different sites in central Germany over the course of 1 year using different in vitro assays. …”
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  8. 108

    Multi-label Classification Based on Label-Aware Variational Autoencoder by SUN Hongjian, XU Pengyu, LIU Bing, JING Liping, YU Jian

    Published 2025-03-01
    “…Therefore, in order to solve the above problems, this paper proposes a multi-label classification method based on label-aware variational self-encoder from embedding representation learning and label relevance learning. …”
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  9. 109

    Somaclonal Variation and Clonal Fidelity in Commercial Micropropagation: Challenges and Perspectives by Sweety Majumder, Abir U. Igamberdiev, Samir C. Debnath

    Published 2025-06-01
    “…This review aims to describe the causes behind somaclonal variation, the selection of somaclonal variants, and their uses in crop and plant improvement at the commercial level. …”
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  10. 110

    Dimensional Variations of Left-Sided Double-Lumen Endobronchial Tubes by Niels Hegland, Sebastian Schnitzler, Jan Ellensohn, Marc P. Steurer, Markus Weiss, Alexander Dullenkopf

    Published 2019-01-01
    “…Endobronchial tubes of ostensibly the same size revealed wide variation in measured parameters between brands from different manufacturers. …”
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    Seasonal variation of the zooplankton communities’ diversity in ponds of the Atlantic Forest by Maria Eduarda Turcato de Souza, Natan Guilherme Dos Santos, Laura Jardim Chiarelli, Maria Stela Maioli Castilho Noll

    Published 2025-06-01
    “…Abstract: Aim This study analyzed the structure and seasonal variation of the zooplankton community in five ponds in a preserved Atlantic Forest environment in Brazil, the Betary Reserve. …”
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  12. 112

    Cadaveric variation in the morphology of the gastrocnemius muscle in a Nigerian population by Mamerhi T Enaohwo, Efe J Jaiyeoba-Ojigho, Lilian E Chris-Ozoko, Faith Ogbe, Elohor M Ebijor

    Published 2025-01-01
    “…Material and Methods: Variations in the heads of origin of the gastrocnemius muscle were examined in 31 lower limbs during routine dissection of the popliteal fossa at the anatomical museum of Delta State University. …”
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    Seasonal Variation of Testosterone Levels in a Large Cohort of Men by Taiba Zornitzki, Sagi Tshori, Galit Shefer, Shira Mingelgrin, Carmit Levy, Hilla Knobler

    Published 2022-01-01
    “…Various data suggest seasonal variation in testosterone levels. However, previous studies are limited by their size or by variability in baseline characteristics. …”
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    Age-related variation in health status after age 60. by Giola Santoni, Sara Angleman, Anna-Karin Welmer, Francesca Mangialasche, Alessandra Marengoni, Laura Fratiglioni

    Published 2015-01-01
    “…Although particularly important when planning health and social services, knowledge about their distribution and aggregation at different ages is limited. We aim to characterize the variation of health status in a 60+ old population using five indicators of health separately and in combination.…”
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  18. 118

    The effects of climate variations on the incidence of benign paroxysmal positional vertigo by Tiago Chantre, Inês Alpoim Moreira, Mariana Oliveira, Herédio Sousa

    Published 2024-03-01
    “…Benign Paroxysmal Positional Vertigo (BPPV) is one of the most frequently observed diagnoses in these patients and has a considerable personal and health care burden. Our aim is to evaluate the weekly and seasonal incidence of BPPV and study the possible relationship between the incidence of BPPV and the climate variations that occurred throughout the year 2021, in the metropolitan area of Lisbon. …”
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    Anatomical variations and coding of the intra-trunk pathways in the thoracodorsal nerve by N. S. Gorbunov, K. V. Kober, E. V. Kasparov, S. I. Rostovtsev, E. N. Protasyuk

    Published 2023-07-01
    “…Aim. To study anatomical variations of the intra–trunk pathways in the thoracodorsal nerve bundles and to develop a system for their coding.Materials and methods. …”
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