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Showing 601 - 620 results of 9,442 for search '(structures OR (structural OR structure)) variation', query time: 0.26s Refine Results
  1. 601

    RESEARCH ON FREE VIBRATION CHARACTERISTICS OF THIN PLATE STRUCTURES BASED ON IMPROVED FOURIER SERIES by WU Baoning, LIU Fang, DONG Rong, NIE Shaoqing, LIU Yafei

    Published 2025-06-01
    “…Aiming at the problem of structural vibration modeling and characteristic analysis of rectangular sheets under arbitrary boundary conditions, an improved Fourier series method was proposed.Based on the Rayleigh-Ritz method, the allowable function of vibration displacement of thin plates was expressed as a linear combination of double Fourier cosine series function and auxiliary series function, which effectively avoided the possible discontinuities or singularities of the traditional Fourier series at the boundary. …”
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  2. 602

    Structures and determinants of soil microbiomes along a steep elevation gradient in Southwest China by Ting Li, Ting Li, Ting Li, Ziyan Gao, Ping Zhou, Ping Zhou, Mingmin Huang, Gangzheng Wang, Jianping Xu, Wangqiu Deng, Mu Wang, Mu Wang

    Published 2025-01-01
    “…Environmental factors including vegetation type (VEG), altitude (ALT), soil pH, total phosphorus (TP), nitrate nitrogen (NO3−-N), and polyphenol oxidase (ppo) all exhibited significant influence on the bacterial community structure, whereas VEG, ALT, and the carbon to nitrogen ratio (C/N) were significantly associated with the fungal community structure. …”
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  6. 606

    Experimental and Numerical Analysis of the Impact Resistance of Polyurethane Foam Aluminum-Concrete Sandwich Structures by Yong Zhang, Fenfang Yin, Junwei Ma

    Published 2024-11-01
    “…The investigation encompasses variations in the thickness of the polyurethane foam-aluminum absorption layer, the impact height, and different structural combinations, coupled with numerical simulations. …”
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  7. 607

    IPaintS - Intelligent coatings for concrete structures: Immobilization of pH indicators on coating membranes by Cristino Ana F., Lopreto Julia, Silva Helena, Santos Silva António, Rodrigues Maria Paula, Cabral-Fonseca Susana, Ferreira Olga, Teles Nunes Joaquim, Soeira Bruno, Galhano dos Santos Rui

    Published 2025-01-01
    “…In Portugal and over the world, a significant number of concrete structures face challenges due to expansive chemical reactions, such as the alkali-silica reaction (ASR). …”
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  8. 608
  9. 609

    Vibration-Based Damage Prediction in Composite Concrete–Steel Structures Using Finite Elements by Mario D. Cedeño-Rodríguez, Sergio J. Yanez, Erick I. Saavedra-Flores, Carlos Felipe Guzmán, Juan Carlos Pina

    Published 2025-01-01
    “…The approach effectively captured stiffness degradation in the model, leading to observable changes in modal responses, including a reduction in natural frequencies and variations in modal shapes. This enabled the accurate prediction of damage instances during construction, service, or accidental load scenarios, thereby enhancing the structural and operational safety of composite system designs. …”
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  10. 610

    Two-Dimensional Numerical Analysis on the Double Shear Specimens of Timber-Concrete Composite Structures by Lim Jun En, Mohd Amirul Bin Mohd Snin, Siti Nur Fatimah Ghazali, Mohamad Ikmal Zainal, R. Suryavarman

    Published 2025-06-01
    “… This study investigates the behaviour of screw connections in timber-concrete composite (TCC) structures using two-dimensional finite element modelling with LUSAS software. …”
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  11. 611

    An innovative methodology for segmenting vessel like structures using artificial intelligence and image processing by Reynaldo Villarreal, Sindy Chamorro-Solano, Steffen Cantillo, Roberto Pestana-Nobles, Sair Arquez, Yolanda Vega-Sampayo, Leonardo Pacheco-Londoño, Jheifer Paez, Nataly Galan-Freyle, Cristian Ayala, Paola Amar

    Published 2024-12-01
    “…The combination of these modules aimed to identify capillary structures at pixel level. The method was applied on different datasets containing images of eye fundus, citrus leaves, printed circuit boards to test how well it could segment the capillary structures. …”
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  12. 612
  13. 613

    Characterizing the Population Structure and Genetic Diversity of Iraqi Pigeons Using Ssr Markers by M Bayraktar, O Shoshin, Z Cabeci

    Published 2024-10-01
    “…ABSTRACT This study aims to characterize Iraqi pigeon breeds’ population structure and genetic diversity using Microsatellite (SSR) markers to obtain detailed insights into their genetic variation, differentiation, and evolutionary dynamics. …”
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  14. 614

    Coherent control of covalent bonding by probe electromagnetic field and structured light pulses by Hussain Ahmad, Ali Akgül, Ghulam Saddiq, Qasem Al-Mdallal

    Published 2025-07-01
    “…Additionally, the covalent interaction between atoms are modified using structured light beams in the range of $$-3 \mu m \le x,y \le 3\mu m$$ . …”
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  15. 615

    YIELD STRUCTURE AND COMPONENT ANALYSIS OF THE SPECIES ×TRITICUM TOSCHEVII H.P.ST. by Hristo Stoyanov

    Published 2018-03-01
    “…Componential analysis was done to determine the main components in the formation of the yield’s structural elements. Based on the analyses carried out, the number of grains per spike and 1000 kernel weight were determined as the main structural elements. …”
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  16. 616

    Association of a rapidly selected 4.3kb transposon-containing structural variation with a P450-based resistance to pyrethroids in the African malaria vector Anopheles funestus. by Leon M J Mugenzi, Theofelix A Tekoh, Stevia T Ntadoun, Achille D Chi, Mahamat Gadji, Benjamin D Menze, Magellan Tchouakui, Helen Irving, Murielle J Wondji, Gareth D Weedall, Jack Hearn, Charles S Wondji

    Published 2024-07-01
    “…Here, we demonstrate that a 4.3kb transposon-containing structural variation is associated with pyrethroid resistance in central/eastern African populations of the malaria vector Anopheles funestus. …”
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  17. 617

    Quantitative Structure-Activity Relationship Study of Fatty Acid Derivatives as Lubricant Additive by Rahmawita Sugesti, Komar Sutriah, Mohammad Khotib

    Published 2024-06-01
    “…In this study, the correlation between the chemical structure of fatty acid derivative compounds and their physical properties through the quantitative structure-activity relationship (QSAR) using the density functional theory (DFT) was determined. …”
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  18. 618

    Crust and Upper Mantle Structure of Mars Determined from Surface Wave Analysis by Víctor Corchete

    Published 2025-04-01
    “…The crust and upper mantle structure of Mars is determined in the depth range of 0 to 100 km, by means of dispersion analysis and its inversion, which is performed for the surface waves present in the traces of the seismic event: S1094b. …”
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  20. 620

    Genetic diversity and population structure in Polygonum cespitosum: insights to an ongoing plant invasion. by Silvia Matesanz, Kathryn E Theiss, Kent E Holsinger, Sonia E Sultan

    Published 2014-01-01
    “…Molecular markers can help elucidate how neutral evolutionary forces and introduction history contribute to genetic variation in invaders. We examined genetic diversity, population structure and colonization patterns in the invasive Polygonum cespitosum, a highly selfing, tetraploid Asian annual introduced to North America. …”
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