Search alternatives:
reflection » selection (Expand Search)
Showing 221 - 240 results of 807 for search 'complex reflection (efficient OR efficiency)', query time: 0.13s Refine Results
  1. 221
  2. 222
  3. 223

    A Mathematical Method for Predicting Tunnel Pressure Waves Based on Train Wave Signature and Graph Theory by Xu Zhang, Haiquan Bi, Honglin Wang, Yuanlong Zhou, Nanyang Yu, Jizhong Yang, Yao Jiang

    Published 2025-07-01
    “…This study proposes a generalized mathematical method integrating TWS with graph theory for the simulation of pressure wave generation, propagation, and reflection in complex tunnel systems. A computational program is implemented using this method for efficient simulation. …”
    Get full text
    Article
  4. 224

    Analysis of Pyramidal Surface Texturization of Silicon Solar Cells by Molecular Dynamics Simulations by Hsiao-Yen Chung, Chiun-Hsun Chen, Hsin-Sen Chu

    Published 2008-01-01
    “…This MD model can potentially be used to predict the efficiency promotion in any optical reflection-absorption cases.…”
    Get full text
    Article
  5. 225

    A cognitive transmission and deployment strategy for UAV-assisted hybrid RIS relay network by Min Zhang, Hao Cheng, Ruoyu Su, Yin Lu, Shangao Wang, Lu Zhang

    Published 2025-08-01
    “…Integrating reconfigurable intelligent surfaces (RIS) into these networks enhances signal coverage and energy efficiency, but also introduces new challenges in real-time optimization for multi-reflection environments. …”
    Get full text
    Article
  6. 226

    The Deep Deterministic Policy Gradient Algorithm Based on RIS Technology in a Coal Mine Tunnel by Shuqi Wang, Fengjiao Wang, Wei Zhang, Yaqi Wang

    Published 2024-12-01
    “…Reconfigurable Intelligent Surface (RIS) technology relies on its reconfigurable electromagnetic properties and offers an efficient solution for enhancing signal quality in coal mine communications. …”
    Get full text
    Article
  7. 227

    A Design Framework for Reconfigurable Intelligent Metasurfaces Enabling Full-Space Beamforming Using Auxiliary Surface Waves by Tianke Qiu, George V. Eleftheriades

    Published 2025-01-01
    “…As a result, our designs enable wide-angle beamsteering of up to 70° in a single plane, as well as out-of-plane anomalous reflection. To further demonstrate the capabilities of the design framework for complex wave manipulation, a Chebyshev pattern with a -20 dB sidelobe level, as well as sector patterns in a single plane and across a hemisphere, are achieved using the designed RIS. …”
    Get full text
    Article
  8. 228

    Effect of Acoustic Enclosure on the Sound Transmission Loss of Multi-Layered Micro-Perforated Plates by Brahim EL KHARRAS, Mohammed GAROUM, Abdelmajid BYBI

    Published 2024-03-01
    “…However, it is vital to analyze the in-situ sound transmission loss of the multi-layered MPP and their efficiency in a complex vibro-acoustic environment. …”
    Get full text
    Article
  9. 229

    Assessing serial recall as a measure of artificial grammar learning by Holly E. Jenkins, Ysanne de Graaf, Faye Smith, Nick Riches, Benjamin Wilson, Benjamin Wilson

    Published 2024-12-01
    “…Here, in two experiments, we investigated whether serial visual recall could be used to effectively measure the learning of a more complex artificial grammar that is designed to emulate the between-word relationships found in language.MethodsWe adapted the design of a previous Artificial Grammar Learning (AGL) study to use a visual serial recall task, as well as more traditional reflection-based grammaticality judgement and sequence completion tasks. …”
    Get full text
    Article
  10. 230

    Dynamically Cyclic Fe2+/Fe3+ Active Sites as Electron and Proton-Feeding Centers Boosting CO2 Photoreduction Powered by Benzyl Alcohol Oxidation by Ben Lei, Gaofeng Zhou, Zhongyou Gong, Chao Liu, Ying Zhou, Vitaliy P. Guro, Yanjuan Sun, Jianping Sheng, Fan Dong

    Published 2025-01-01
    “…Solar-driven CO2 photoreduction holds promise for sustainable fuel and chemical productions, but the complex proton-coupled multi-electron transfer processes and sluggish oxidation half-reaction kinetics substantially hinder its efficiency. …”
    Get full text
    Article
  11. 231

    GPR Diffraction Separation by Incorporating Multilevel Wavelet Transform and Multiple Singular Spectrum Analysis by Haolin Wang, Honghua Wang, Zhiyang Hou, Fei Zhou

    Published 2025-03-01
    “…Numerical tests showcase that the biorthogonal wavelet basis function bior4.4 provides remarkably efficient GPR diffraction separation performance, and the number of clusters in the k-means clustering algorithm typically ranges from 9 to 15, accounting for the complexity of the wave components. …”
    Get full text
    Article
  12. 232

    Microstrip Patch Antenna Design Using a Four-Layer Feed Forward Artificial Neural Network Trained by Levenberg-Marquardt Algorithm by Jitu Prakash Dhar, Maodudul Hasan, Eisuke Nishiyama, Ichihiko Toyoda

    Published 2025-01-01
    “…This study proposes an efficient Artificial Neural Network (ANN) model for predicting the dimensions and feed point of microstrip patch antennas with three types of geometrical shape. …”
    Get full text
    Article
  13. 233

    WiPy-RT: A Fast Ray Tracing Modeling Platform for RIS-Assisted Wireless Channels by Mohammadreza Farashahi, Boon-Chong Seet, Xue Jun Li

    Published 2025-01-01
    “…Additionally, WiPy-RT provided higher resolution and accuracy in power distribution modeling for complex 3D urban environments. WiPy-RT introduces several novel features, including an intelligent ray launching method using Gaussian Kernel Density Estimation (KDE) and an efficient RIS modeling approach employing Random Forest Regression. …”
    Get full text
    Article
  14. 234

    Dimensions éthiques de l’allocation du financement international de l’adaptation au changement climatique by Romain Weikmans

    Published 2016-09-01
    “…However, and as we discuss in this article, the assessment of countries’ vulnerabilities – i.e., the assessment of their adaptation needs – is equally complex. In our view, the focus on equity issues in the allocation of international adaptation finance should rather be understood as a reflection of ethical choices. …”
    Get full text
    Article
  15. 235

    High-temperature resistant resonant cavity microwave sensor for precision blade tip clearance monitoring in aeroengines by Haolin Sun

    Published 2025-07-01
    “…The sensor has a radiation efficiency of 97% near 24 GHz, a reflection coefficient as low as 0.01, good measurement resolution within the 0–6 mm clearance measurement range, and the impact of changes in the dielectric constant at high temperatures on its performance is controllable. …”
    Get full text
    Article
  16. 236

    Quantum chimp-enanced SqueezeNet for precise diabetic retinopathy classification by Anas Bilal, Muhammad Shafiq, Waeal J. Obidallah, Yousef A. Alduraywish, Alishba Tahir, Haixia Long

    Published 2025-04-01
    “…Firstly, SqueezeNet enables efficient feature extraction from segmented fundus images with minimal computational complexity, ensuring that critical retinal features are captured effectively. …”
    Get full text
    Article
  17. 237

    Propagation of whistler mode waves in Earth’s inner magnetosphere in the presence of field aligned irregularities and geomagnetic curvature by Raahima Khatun-E-Zannat, Vijay Harid, Mark Golkowski, Oleksiy Agapitov, Poorya Hosseini

    Published 2025-08-01
    “…The presence of magnetospheric ducts produces a more complex wave behavior in the full wave model, leading to a strong spatial modulation, efficient confinement and the formation of shadow region as a result of geomagnetic curvature. …”
    Get full text
    Article
  18. 238

    VALUE CHAINS IN RAW MATERIALS, HIGH-TECH AND AGRICULTURAL PRODUCTS. INTERNATIONAL, EUROPEAN AND ROMANIAN PERSPECTIVES by Sorin IONITESCU, Agatha POPESCU, Simona MOAGAR-POLADIAN, Nicoleta-Luminita GUDANESCU, Alina-Cerasela ALUCULESEI

    Published 2024-01-01
    “…Highlighting the importance of efficient value chain management, the exploration examines first the situation at the global level in the countries with a high economic development: USA, China, Germany, Japan and India, as a reflection on how global and regional policies impact agricultural production and distribution. …”
    Get full text
    Article
  19. 239

    Technological Culture and Politics: Artificial Intelligence as the New Frontier of Political Communication by Daniele Battista, Emiliana Mangone

    Published 2025-03-01
    “…One of the issues under discussion is whether the integration of AI in the political context represents a promising opportunity to improve the efficiency of democratic participation and policy-making processes, as well as increase institutional accountability. …”
    Get full text
    Article
  20. 240

    Exploring infill pattern and density effects on the tensile properties of 3D printed ABS by Bruno Leonardelli, Cesar Pandolfi, Gustavo Alberto Ludwig, Cristian Padilha Fontoura

    Published 2025-05-01
    “…Fused Deposition Modeling (FDM) is recognized as an efficient method for creating durable, complex parts quickly and affordably. …”
    Get full text
    Article