Showing 1,721 - 1,740 results of 1,758 for search '"geometry"', query time: 0.04s Refine Results
  1. 1721

    Investigating the impact of Multiwalled Carbon Nanotubes exposure on enzymatic activities and histopathological variations in Swiss albino mice by Iqra Nasim, Nadia Ghani, Rab Nawaz, Emilio Mateev, Yousef A. Bin Jardan

    Published 2025-01-01
    “…Present study showed a comprehensive and practical assessment of the toxicity associated with MWCNT-NP of different geometries and functionalization.…”
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    Article
  2. 1722

    Generalized Design for Additive Manufacturing (DfAM) Expert System Using Compliance and Design Rules by Bader Alwoimi Aljabali, Santosh Kumar Parupelli, Salil Desai

    Published 2025-01-01
    “…Additive manufacturing (AM) has revolutionized the design and production of complex geometries by offering unprecedented creative freedom over traditional manufacturing. …”
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    Article
  3. 1723

    Characterisation of Particulate Matter Emitted from Cofiring of Lignite and Agricultural Residues in a Fixed-Bed Combustor by Nattasut Mantananont, Savitri Garivait, Suthum Patumsawad

    Published 2012-01-01
    “…The analysis of particle morphology showed that the isolate shape of submicron particle produced during lignite combustion is characterised by different geometries such as round, capsule, rod, flake-like, whereas the spherical shape is obtained with combustion of rice husk.…”
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    Article
  4. 1724

    Winglet Design for Aerodynamic and Performance Optimization of UAVs via Surrogate Modeling by Eleftherios Nikolaou, Spyridon Kilimtzidis, Vassilis Kostopoulos

    Published 2025-01-01
    “…Using surrogate-based optimization (SBO) techniques, this research developed winglet geometries with varying geometric parameters such as length, cant angle, and sweep angle with their performance being evaluated through high-fidelity Computational Fluid Dynamics (CFD) simulations. …”
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    Article
  5. 1725

    Research progress of laser powder bed fusion of Ti2AlNb-based alloys: Microstructure, defects and properties by Jianfa Liao, Aoqi Fan, Haojie Luo, Yulei Du

    Published 2025-03-01
    “…Laser powder bed fusion (LPBF) has garnered considerable attention in the development of Ti2AlNb-based alloys because it enables the fabrication of complex structural parts with intricate geometries. However, LPBF-fabricated Ti2AlNb alloys still encounter significant challenges, including difficulties in microstructure control, the presence of various defects, and inadequate high-temperature ductility, which severely restrict their practical applications. …”
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    Article
  6. 1726

    Numerical Study of Leakage and Rotordynamic Performance of Staggered Labyrinth Seals Working with Supercritical Carbon Dioxide by Hao Cao, Wanfu Zhang, Lu Yin, Li Yang

    Published 2022-01-01
    “…The dynamic and static characteristics of the staggered labyrinth seal for different axial shifting distances of the rotor, various cavity geometries (heights/widths of the rotor convex plate, heights of the seal cavity), and seal clearances were investigated and compared with the conventional see-through labyrinth seal. …”
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    Article
  7. 1727

    Vibration and Sound Transmission Performance of Sandwich Panels with Uniform and Gradient Auxetic Double Arrowhead Honeycomb Cores by Qing Li, Deqing Yang

    Published 2019-01-01
    “…Novel sandwich structures composed of uniform and gradient auxetic double arrowhead honeycomb (DAH) cores were investigated in terms of their vibration and sound transmission performance stimulated by nonhomogeneous metamaterials with nonperiodic cell geometries. The spectral element method (SEM) was employed to accurately evaluate the natural frequencies and dynamic responses with a limited number of elements at high frequencies. …”
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    Article
  8. 1728

    Embedded Rough-Neck Helmholtz Resonator Low-Frequency Acoustic Attenuator by Xianming Sun, Tao Yu, Lipeng Wang, Yunshu Lu, Changzheng Chen

    Published 2024-12-01
    “…A quantitative investigation is conducted on three types of embedded rough-neck geometries (rectangular-grooved, triangular-grooved, and undulated) to elucidate their acoustic performance, with particular attention to differences in acoustic transmission loss and acoustic impedance characteristics. …”
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    Article
  9. 1729

    THz Scattering and Tunable Plasmonic Resonances from Graphene-Coated Gold Nanowires by Faroq Razzaz, M. N. Akram, M. Z. Yaqoob

    Published 2024-01-01
    “…The present work provides a universal solution for the graphene-coated cylindrical geometries. The optical conductivity of graphene has been modeled by the use of Kubo formalism, while the analytical modeling of the gold (Au) is done by employing Drude’s model. …”
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    Article
  10. 1730

    From single to multi-stage forming process of copper thin sheet by Lagroum Amine, Manach Pierre-Yves, Thuillier Sandrine

    Published 2025-01-01
    “…In addition, numerical models for the rectangular geometries capture some of the trends from the experiment such as the proportionality of the maximum force with the bent width. …”
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    Article
  11. 1731

    Design and Modellingof a Pneumatic Vice Machine by Talemwa, Prosper

    Published 2024
    “…Key features include a robust frame constructed from high-strength materials, an adjustable clamping jaw system for accommodating different workpiece geometries, and integrated pressure control for fine-tuning clamping force. …”
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    Thesis
  12. 1732

    Current-induced spin polarisation in Rashba–Dresselhaus systems under different point groups by Akash Dey, Ashis K Nandy, Kush Saha

    Published 2025-01-01
    “…In this study, we demonstrate that electrically induced spin polarisation in non-magnetic materials, for example, electronic systems within quantum-well geometries, can significantly be influenced by the system’s point-group symmetries, such as C _n and C _nv . …”
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    Article
  13. 1733

    High-integrity diffusion bonding of laser powder bed fused, forged, and rolled Ti–6Al–4V alloys by Seoyeon Jeon, Hyunjong Ha, Dong Jun Lee, Hyeonil Park, Yong Nam Kwon, Hyunjoo Choi, Hyokyung Sung

    Published 2025-03-01
    “…Diffusion bonding of additively manufactured Ti–6Al–4V components with complex geometries to conventionally processed frames is a cost-effective approach for reducing the buy-to-fly ratio while minimizing deformation. …”
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    Article
  14. 1734

    Microstructure and Mechanical Properties of High-Entropy Alloy FeCoNiCr(X) Produced by Laser Directed Energy Deposition Process: Effect of Compositional Changes by Ekaterina Kovalenko, Igor Krasanov, Ekaterina Valdaytseva, Stanislav Stankevich, Olga Klimova-Korsmik, Marina Gushchina

    Published 2024-12-01
    “…Laser directed energy deposition technology allows for the production of products with various complex geometries and dimensions (L-DED). It has been found that HEA FeCoNiCrCu alloys can be divided into regions with high concentrations of Fe + Co + Cr and Cu elements. …”
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    Article
  15. 1735

    Theoretical Insight into the Spectral Characteristics of Fe(II)-Based Complexes for Dye-Sensitized Solar Cells—Part I: Polypyridyl Ancillary Ligands by Xiaoqing Lu, Shuxian Wei, Chi-Man Lawrence Wu, Ning Ding, Shaoren Li, Lianming Zhao, Wenyue Guo

    Published 2011-01-01
    “…We report herein a theoretical investigation on a series of polypyridyl Fe(II)-based complexes of FeL2(SCN)2, [FeL3]2+, [FeL′(SCN)3]-, [FeL′2]2+, and FeL′′(SCN)2 (L = 2,2′-bipyridyl-4,4′-dicarboxylic acid, L′ = 2,2′,2″-terpyridyl-4,4′,4″-tricarboxylic acid, L″ = 4,4‴-dimethyl-2,2′ : 6′,2″ :6″,2‴-quaterpyridyl-4′,4″-biscarboxylic acid) by density functional theory (DFT) and time-dependent DFT (TD-DFT). Molecular geometries, electronic structures, and optical absorption spectra are predicted in both the gas phase and methyl cyanide (MeCN) solution. …”
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    Article
  16. 1736

    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
    “…This research contributes to the advancement of vibration-based methods for damage detection, emphasizing the complexities in characterizing damage in composite structural geometries. Further exploration and refinement of this approach are essential for the precise classification of damage types.…”
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    Article
  17. 1737

    Count-rate management in 131I SPECT/CT calibration by Staffan Jacobsson Svärd, Cecilia Hindorf, Joachim N. Nilsson

    Published 2025-01-01
    “…Results The sensitivities of two General Electric (GE) Discovery 670 Pro systems were assessed using two Jaszczak phantom geometries. SPECT/CT data were collected over two months, starting with an initial 131I content of > 2 GBq, decaying to approximately 20 MBq. …”
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    Article
  18. 1738

    Metal Casting Furnace Design Development Using Computer Simulation by Ramadhan Wahyu Irianto, Yanuar R.A. Pradana, Suprayitno Suprayitno

    Published 2024-02-01
    “…There are two furnace geometries, cylindrical and hexagonal, while the burner location will be divided into 3 positions, namely P1, P2, and P3. …”
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    Article
  19. 1739

    Assessing Delayed Collapse Risks in Load-Bearing Reinforced Concrete Walls Exposed to Parametric Fires: A Numerical Investigation by Guergah Cherif, Baghdadi Mohamed, Dimia Mohamed Salah, Antonio Marcos de Oliveira Siqueira, Júlio César Costa Campos

    Published 2024-08-01
    “…A parametric study was undertaken, examining various fire scenarios, wall geometries, load levels, wall heights, adjacency, and boundary conditions. …”
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    Article
  20. 1740

    Enhanced Chemical Insights into Fullerene Structures via Modified Polynomials by Ali N. A. Koam, Ali Ahmad, Raed Qahiti, Muhammad Azeem, Waleed Hamali

    Published 2024-01-01
    “…The modified polynomial technique is a more recent way of assessing molecular systems and geometries in chemoinformatics. It emphasizes the polynomial nature of molecular features and gives numerics in algebraic expression. …”
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    Article