Showing 1,661 - 1,680 results of 1,758 for search '"geometry"', query time: 0.06s Refine Results
  1. 1661

    Numerical Study to Investigate the Performance of U-shaped Flat Plate Solar Collector Using Phase Change Materials (PCMs) by Ibrahim Lazim Ihnayyish, Ahmed Qasim Ahmed, Abdulrahman Th. Mohammad, Ali Khalid Shaker Al-Syyab

    Published 2023-06-01
    “…In this study, where it was taken to evacuated tube solar collectors three different geometries of the inner pipe diameter were proposed and combined with type of phase change materials (PCM) to evaluate their performance using PCM. …”
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    Article
  2. 1662

    Enhanced Solubility of the Support in an FDM-Based 3D Printed Structure Using Hydrogen Peroxide under Ultrasonication by Seong Je Park, Ji Eun Lee, Jean Ho Park, Nak Kyu Lee, Min-Young Lyu, Keun Park, Myung Sool Koo, Sung Hwan Cho, Yong Son, Suk-Hee Park

    Published 2018-01-01
    “…Furthermore, we demonstrated that there was no deterioration with respect to the mechanical properties or shape geometries of the obtained 3D printed parts. Taken together, these results are expected to help enhance the productivity of FDM by reducing the postprocessing time and to allow the removal of complicated and fine support structures, thereby improving the design capability of the FDM technique.…”
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  3. 1663

    Synthesis, Biological, and Quantum Chemical Studies of Zn(II) and Ni(II) Mixed-Ligand Complexes Derived from N,N-Disubstituted Dithiocarbamate and Benzoic Acid by Anthony C. Ekennia, Damian C. Onwudiwe, Aderoju A. Osowole, Lukman O. Olasunkanmi, Eno E. Ebenso

    Published 2016-01-01
    “…The magnetic moment measurement and electronic spectra were in agreement with the four proposed coordinate geometries for nickel and zinc complexes and were corroborated by the theoretical quantum chemical calculations. …”
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    Article
  4. 1664

    Computational analysis of bioconvective MHD hybrid nanofluid flow of non-Newtonian fluid over cone/plate: A study based on the Cattaneo-Christov heat and mass flux model by P. Francis, P. Sambath, S. Noeiaghdam, U. Fernandez-Gamiz, S. Dinarvand

    Published 2025-03-01
    “…In a comparative study between the vertical cone and plate geometries, the vertical plate showed superior heat and mass transfer performance. …”
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    Article
  5. 1665

    Geophysical flows over topography, a playground for laboratory experiments by Vidal, Jérémie, Noir, Jérôme, Cébron, David, Burmann, Fabian, Monville, Rémy, Giraud, Vadim, Charles, Yoann

    Published 2025-01-01
    “…In particular, complexities arise because geophysical fluids are rotating and subject to density variations, but also because the fluid boundaries have complex geometries (e.g. the ocean floor) with wavelengths ranging from metres to thousands of kilometres. …”
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  6. 1666

    Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts by Penglong Zhu, Guoxiu Sun, Ruimeng Liu, Sicong Zhou, Baisong Hu, Shaofeng Zhang

    Published 2025-01-01
    “…The study provides a thorough analysis of fully turbulent flow (Re = 6600–17,200), examining the effects of various DSI pitches, key lengths, and geometries. The findings reveal that the DSI instigates a three-dimensional spiral flow pattern, which is accompanied by an escalation in the Nusselt number (Nu) and friction factor (f) with increasing Reynolds numbers. …”
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  7. 1667

    Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity by He-Xiu Xu, Guang-Ming Wang, Chen-Xin Zhang

    Published 2012-01-01
    “…It is found that fractal perturbation in CRR results in lower and more transmission zeros in comparison with conventional CRR using nonfractal geometries. The single negative-permeability or -permittivity of these MTM TLs which associated with the resultant multitransmission zeros occurs by turns and should benefit devices with high selectivity requirement. …”
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  8. 1668

    Selective union of ATP vs ADP to an amino/amide macrocycle and its Cu2+ complexes: potentiometric, spectrophotometric and theoretical approximations by Armando Ferrer Serrano, Yennys Hernández Molina

    Published 2022-08-01
    “…It was found that the studied ligand forms stable mononuclear and binuclear complexes with Cu (II) and these species have similar geometries, squared pyramid, above pH 7. An evaluation through its potentiometrically determined stability constants of the selective recognition of ATP over ADP by this macrocycle and its Cu (II) complexes is presented. …”
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  9. 1669

    CFD Turbulence Study of PWR Spacer-Grids in a Rod Bundle by C. Peña-Monferrer, J. L. Muñoz-Cobo, S. Chiva

    Published 2014-01-01
    “…This work presents the analysis of the turbulence effects of a split-type and swirl-type spacer-grid geometries on single phase in a PWR (pressurized water reactor) rod bundle. …”
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  10. 1670

    High-Gain Textile Antenna Array System for Off-Body Communication by Maria Lucia Scarpello, Luigi Vallozzi, Hendrik Rogier, Dries Vande Ginste

    Published 2012-01-01
    “…To allow simple low-cost beam steering, we specifically minimize mutual coupling by using a relative large distance between the patches and by selecting the ETMPA element as the most suited topology from three potential patch geometries. Moreover, we investigate the stability of return loss and mutual coupling characteristics under different relative humidity conditions, when bending the array, when placing the system on-body, and when covering it by different textile layers. …”
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  11. 1671

    Additive metal printing on multi materials using an atmospheric pressure plasma jet on a 5-Axis platform by Oliver S.J. Hagger, Michael A. Parkes, Francis Lockwood Estrin, Stefanos Agrotis, Ivan P. Parkin, Albertus D. Handoko, Daren J. Caruana

    Published 2025-03-01
    “…Post-production embellishment of confromal objects with metal tracks presents significant challenges, due to the need for multiple processing steps and the complexity of navigating intricate substrate geometries. Here we describe a flexible approach to deposit conducting metal tracks on 3D objects using an atmospheric pressure plasma jet (APPJ). …”
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  12. 1672

    Finite element simulations of auxetic structure combined with honeycomb using unidirectional continuous carbon fiber composite properties by Nathália Mello Mascarenhas Paixão, Antônio Ferreira Ávila

    Published 2023-02-01
    “…Despite several studies including these geometries, the use of composite as raw material has not been reported in the literature, so this work aimed to perform finite element simulations of combined honeycomb and re-entrant auxetic structures using properties of continuous, unidirectional carbon fiber composite in epoxy matrix. …”
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  13. 1673

    Numerical investigation of heat and mass transfer for unsteady multiphase flow in a vented cavity filled with hybrid nanofluid by Muhammad Ashhad Shahid, Mojtaba Dayer, Muhammad Adil Sadiq, Haris Ali, Ishak Hashim

    Published 2025-04-01
    “…The findings from this research are expected to contribute towards the development of more efficient nanofluid-based systems, particularly in systems with irregular geometries.…”
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    Article
  14. 1674

    A Review of Numerical Techniques for Frictional Contact Analysis by Govind Vashishtha, Sumika Chauhan, Riya Singh, Manpreet Singh, Ghanshyam G. Tejani

    Published 2025-01-01
    “…Advancements in constitutive modelling are vital for improved accuracy, along with enhanced contact detection algorithms for complex geometries and large deformations. Integrating experimental data and multiphysics capabilities will further enhance the reliability and applicability of these numerical techniques across various engineering applications. …”
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  15. 1675

    A comparative study of classical and innovative lobbed air diffusers using temperature sensors for thermal environment/comfort in vehicle cabins by Danca Paul, Cernei Alexandru

    Published 2025-01-01
    “…This study evaluates the impact of two air diffuser geometries—the classical and the innovative lobbed air diffusers—on the thermal environment within a car cabin. …”
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    Article
  16. 1676

    THE EFFECT OF SOIL NAILING INCLINATION FOR IMPROVEMENT OF GYPSUM SAND SOIL IN DIFFERENT SLOPES by Mustafa M. Abdalhusein, Yasir M. Al-Badran, Zuhair Abd Hacheem, Rusul H. Almahmodi, Mohammed S. Mahmood, Susan Mutar N. AlMihna

    Published 2024-09-01
    “…Similarly, an increase in nailing length enhances the FS across all inclination angles and slope geometries. Based on these results, nine design tables were developed, providing empirical equations to determine optimal nailing lengths, inclination angles, and slope conditions for effective stabilisation. …”
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  17. 1677

    Microstructural and mechanical properties degradation of the acceleration/deceleration zones in stainless steel 316L fabricated by selective laser melting by Won-Sang Shin, Taehyun Lee, Hyonkee Sohn, Yoon-Jun Kim, Changkyoo Park

    Published 2025-03-01
    “…Additive manufacturing, particularly the selective laser melting (SLM) process, has emerged as an innovative technique for manufacturing complex geometries with precise control over phase composition and element distribution. …”
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    Article
  18. 1678

    Efficient Probabilistic and Geometric Anatomical Mapping Using Particle Mesh Approximation on GPUs by Linh Ha, Marcel Prastawa, Guido Gerig, John H. Gilmore, Cláudio T. Silva, Sarang Joshi

    Published 2011-01-01
    “…In this paper, we present a solution based on two key ideas: a new registration method that generates a mapping between anatomies represented as a multicompartment model of class posterior images and geometries and an implementation of the algorithm using particle mesh approximation on Graphical Processing Units (GPUs) to fulfill the computational requirements. …”
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  19. 1679

    Tidally Distorted Stars Are Triaxial Pulsators by Jim Fuller, Saul Rappaport, Rahul Jayaraman, Don Kurtz, Gerald Handler

    Published 2025-01-01
    “…We compute the mode frequencies and geometries of tidally distorted stars using perturbation theory, accounting for the effects of the Coriolis force and the coupling between different azimuthal orders m of a multiplet induced by the tidal distortion. …”
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  20. 1680

    Constraint of Different Knee Implant Designs Under Anterior–Posterior Shear Forces and Internal–External Rotation Moments in Human Cadaveric Knees by Saskia A. Brendle, Sven Krueger, Joachim Grifka, Peter E. Müller, William M. Mihalko, Berna Richter, Thomas M. Grupp

    Published 2025-01-01
    “…The results show that despite the differences in ligament situations and individual implant positioning, specific characteristics of each implant design can be identified, reflecting the different geometries of the implant components.…”
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    Article