Showing 1,821 - 1,840 results of 9,442 for search '(structures OR (structural OR structure)) variations', query time: 0.28s Refine Results
  1. 1821

    Land use change has profoundly altered the process of bacterial community assembly in the northeastern black soil zone by Ning Sun, Xu Zhao, Xu Zhao, Fangyuan Liu, Fangyuan Liu, Ge Song, Mengmeng Zhang, Fuqiang Song

    Published 2025-08-01
    “…The analysis focused on assessing structural changes and shifts in ecological strategies of soil bacterial communities under both land-use types.ResultsOur findings revealed that croplands exhibited higher soil pH and elevated concentrations of nutrients such as ammonium nitrogen, nitrate nitrogen, and total phosphorus compared to pristine grasslands. …”
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  2. 1822

    Leveraging Topic Features in Prediction of Social Network Community Evolutions by Rahman Nahi Abid, Hassan Naderi

    Published 2025-01-01
    “…We employed three predictive classifiers to assess the significance of topical features and compared their performance against and in combination with structural features across both datasets. Our findings not only demonstrate the effectiveness of topical features in predicting community evolution with high accuracy across different languages, but also highlight significant variations in feature effectiveness between linguistic contexts, along with substantial reduction in execution time compared to existing approaches.…”
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  3. 1823

    On-Site Construction and Experimental Study of Prefabricated High-Strength Thin Concrete Segment Liners for the Reinforcement of Underground Box Culverts by Shi-Qing Wang, Yanpo Bai, Hongwen Gu, Ning Zhao, Xu-Yang Cao

    Published 2025-07-01
    “…The simulation revealed that variations in the mechanical properties of the grout between the existing structure and the new lining had minimal impact on the internal force distribution and deformation behavior of the prefabricated segments. …”
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  4. 1824

    基于SSR分子标记的油棕遗传多样性 及群体遗传结构分析Analysis of genetic diversity and population genetic structure in oil palm based on SSR markers by 刘加能1,2,程秋如1,2,潘登浪1,李炜芳1,彭小芸1,2,周若茹1,2, 周丽霞3,曾宪海1,3,刘子凡1,2 LIU Jianeng1,2,CHENG Qiuru1,2,PAN Denglang1,LI Weifang1,PENG Xiaoyun1,2, ZHOU Ruoru1,2,ZHOU Lixia3,ZENG Xianhai1,3,LIU Zifan1,2

    Published 2025-04-01
    “…In general, the genetic structure of the tested germplasm population in this study is simple, the degree of genetic differentiation at the population level is low, and the genetic variation at the individual level is rich, which is urgent to pay attention to the selection and creation of mutant superior plants.…”
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  5. 1825

    Unsupervised adaptive feature enhancement network for reliable damage alarm using guided waves under time-varying conditions by Fan Shao, Jiaxuan Li, Li Ouyang, Yuanqiang Ren, Lei Qiu, Shengfang Yuan

    Published 2025-08-01
    “…Structural health monitoring technology is crucial for ensuring the safe operation and reducing maintenance cost of aircraft structures. …”
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  6. 1826

    Evolution of microbial carbon sequestration potential in farmland soil driven by natural restoration in coal mine subsidence area by Chunming HAO, Yantang WANG, Sihai YI, Shuo LIU

    Published 2025-07-01
    “…Coal mining subsidence areas, as typical human-impacted ecosystems, are characterized by soil structural degradation, reduced fertility, and imbalances in microbial communities. …”
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  7. 1827

    Investigation of SiC MOSFET Structures for Surge Robustness in the Third Quadrant Under Various <inline-formula><tex-math notation="LaTeX">$V_{\text{GS}}$</tex-math></inline-formul... by Xinbin Zhan, Yanjing He, Xi Jiang, Hao Yuan, Qingwen Song, Xiaoyan Tang, Xiaowu Gong, Yuming Zhang

    Published 2025-01-01
    “…The I-V temperature curves and the TCAD simulation reveal that different device structures exhibit distinct temperature variation trends due to different current conduction paths. …”
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  8. 1828
  9. 1829

    A Single Layer Neural Network Implemented by a <inline-formula><tex-math notation="LaTeX">$4\times 4$</tex-math></inline-formula> MZI-Based Optical Processor by Farhad Shokraneh, Simon Geoffroy-Gagnon, Mohammadreza Sanadgol Nezami, Odile Liboiron-Ladouceur

    Published 2019-01-01
    “…To this end, the Mach-Zehnder interferometers (MZIs) in the structure are first experimentally calibrated to circumvent the random phase errors originating from fabrication process variations. …”
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  10. 1830

    Getting to the Point: Defining, Reconstructing and Investigating Shape Through a Procrustean Protocol by Ben R. Wigley, Paul G. Blackwell

    Published 2025-05-01
    “…Similarly, following a simulation study, it was found the best approach to imputing missing points will depend upon the level of missingness and can have important implications for the identification of statistical signals, such as structural modularity. In summary, in addition to an open-access digitisation template, a flexible protocol is presented which can be adapted to define, capture and reconstruct shape variation to investigate a diverse spectrum of hypotheses in archaeological materials (e.g., bones, lithics, sediments).…”
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  11. 1831

    SEAL PERFORMANCE ANALYSIS OF FRACTURING PUMP V-SHAPED COMBINATION PLUNGER BASED ON FLUID PRESSURE PENETRATION by ZHAO Mingbo, HOU Yongjun, TANG Ruihuan, LI Huachuan, LIU Youping

    Published 2025-04-01
    “…A two-stage differential pressure plunger seal structure was proposed, and the sealing performance analysis of the structure was carried out.The results show that the maximum contact pressure of the seals all appear in the V-shaped sealing ring near the high-pressure fluid side, and the maximum stress is mainly in the lip and shoulder of the V-shaped sealing ring in contact with the support ring and press ring, the V-shaped sealing ring is more likely to fail on the side in contact with the plunger. …”
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  12. 1832

    Degradation analysis of concrete bridge load-bearing capacity based on crack distribution by Zhirong Ma, Xiaoguang Wu, Xingke Chang, Jiang Huang

    Published 2024-12-01
    “…The load-deflection curves demonstrate minimal variation across different crack heights, indicating that the structures do not experience abrupt brittle failure, and their structural performance is largely optimized in this context. …”
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  13. 1833

    Experimental modal identification of a pedestrian bridge through drive-by monitoring integrated with shared-mobility vehicles by Kun Feng, David Hester, Su Taylor, Connor O'Higgins, Alan Ferguson, Zuo Zhu, Guang Zou, Myra Lydon, Juliana Early

    Published 2024-12-01
    “…In the context of improving resilience in transport infrastructure, an emerging approach of indirect structural health monitoring is gaining attention, known as drive-by monitoring, instrumenting a vehicle with sensors to evaluate the bridges it crosses. …”
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  14. 1834

    Potential applications of rubber buffing dust and recovered crumb rubber in cement concrete by Jurgita Malaiškienė, Tomas Astrauskas, Tomas Januševičius, Olga Kizinievič, Viktor Kizinievič

    Published 2024-12-01
    “…RCR-modified concrete had lower water absorption, less structural inhomogeneity, withstands >100 freeze-thaw cycles and also had the highest sound absorption values when the sample thickness was 15 and 25 mm.…”
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  15. 1835
  16. 1836

    Ecological Stoichiometric Characteristics of Soil Carbon, Nitrogen and Phosphorus in Poyang Lake Wetland during Dry Season and Their Influencing Factors by DENG Tong, QIAN Haiyan, ZHOU Yangming, XIE Dongming

    Published 2025-04-01
    “…Based on correlation analysis and structural equation modeling (SEM), the ecological stoichiometric characteristics of surface soil carbon (C), nitrogen (N), and phosphorus (P) and their key influencing factors under different elevation gradients from 2017 to 2019 were analyzed. …”
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  17. 1837

    Computed Tomography-Driven Design and Fused Filament Fabrication of Graded Density Bone Scaffolds by Luca Grigolato, Gianpaolo Savio

    Published 2025-06-01
    “…Specifically, scaffold design using cellular structures based on lattices has become a significant focus. …”
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  18. 1838

    Studies of structural, optical, magnetic and dielectric properties of Sr0.7Bi0.2(Ti1-xZrx)O3 0.0 ≤ x ≤ 0.6 ceramics for wireless application by Inamullah, Asad Ali, Kashif Safeen, Salhah Hamed Alrefaee, Aiyeshah Alhodaib, Akif Safeen, Shaxnoza Saydaxmetova, Salah Knani, Ali Algahtani, Vineet Tirth, Abid Zaman

    Published 2025-07-01
    “…In this work, the impact produced by doping Zr4+ on the structural, optical, morphological, magnetic and dielectric properties of Sr0.7Bi0.2(Ti1-x Zrx)O3 ceramics has been investigated with respect to the frequency range of 1KHz to 1 MHz. …”
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  19. 1839
  20. 1840