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Structural Features of Porous Silicon Formed on Heavily Doped Plates of Single-Crystal Silicon with Electron Conductivity
Published 2024-10-01“…Using scanning electron microscopy, the structures of the surface and internal regions of porous silicon obtained by anodizing heavily doped plates of single-crystal silicon with electron conductivity in a hydrofluoric acid solution at different current densities were studied. …”
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203
Laboratory Tests and Numerical Simulations of Two Anti-Vibration Structures Made by 3D Printing – Comparative Research
Published 2023-09-01“…The research included laboratory tests and numerical simulations, assuming a linear nature of the mechanical properties for the materials and models of structures. …”
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Development of proposals to rejuvenate the structure of national project management in accordance with I. Adizes’ life cycle model
Published 2025-05-01“…The greatest interest in this article is shown to the study of the influenceof bureaucratic structures on modern management systems, their development in updated economic conditions as well as the processes of attracting innovative ideas in the structure of national projects management. …”
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INHOMOGENEOUS STRESS-DEFORMED STATE OF AN ELASTIC CYLINDRICAL BODY TAKING INTO ACCOUNT ITS MATERIAL INTERNAL STRUCTURE
Published 2018-06-01“…A mathematical model is constructed to describe the inhomogeneous stress-deformed state of a cylindrical body for materials having a porous structure under elastic operation of a fully compressed matrix. …”
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Quasi-Static Compressive Behavior and Energy Absorption Performance of Polyether Imide Auxetic Structures Made by Fused Deposition Modeling
Published 2025-05-01“…It was found that the Poisson’s ratio and normalized equivalent Young’s modulus of ULTEM 9085 and ULTEM 1010 with the same geometries were very close, while the energy absorption of the ductile ULTEM 9085 was significantly higher than that of the brittle ULTEM 1010 structures. Furthermore, a linear correlation exists between the relative density and specific energy absorption of missing rib square grid structures within the investigated relative density range, whereas the relationship for re-entrant structures follows a power law. …”
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SREDNEKEDROVAYA PALEOSEISMODISLOCATION IN THE BAIKAL RIDGE: ITS STRUCTURE AND THROWS ESTIMATED FROM GROUND‐PENETRATING RADAR DATA
Published 2018-07-01“…Our study aimed to clarify the seismic potential of the Severobaikalsk fault and to discover the structural features of active faults on the NW shores of Lake Baikal. …”
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The utility of dynamic forest structure from GEDI lidar fusion in tropical mammal species distribution models
Published 2025-05-01“…Lidar measurements from the Global Ecosystem Dynamics Investigation (GEDI) are shedding light on three dimensional forest structure in regions of the world where this aspect of species habitat has previously been poorly quantified. …”
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Research on 3D Modeling Method of Tunnel Surrounding Rock Structural Planes Based on B-Spline Interpolation
Published 2025-07-01“…To address the limitations of traditional tunnel structural plane modeling—such as low automation, insufficient smoothness, and poor adaptability to real construction environments—this study proposes a novel three-dimensional (3D) modeling framework based on B-spline interpolation combined with deep learning. …”
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Development and characterization of electrospun chitosan-chitin-PVA nanofiber: exploring structural integrity, crystallinity, and thermal stability for advanced applications
Published 2025-08-01“…This enhancement is attributed to the highly ordered crystalline structure and strong intermolecular hydrogen bonding of hCh. …”
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Determination of Dynamic Stresses and Displacements under the Action of an Impact Load on a Two-Layer Structure during the Indentation Process
Published 2024-09-01“…This will allow us to identify significant characteristics of the strength properties of homogeneous and heterogeneous structures.Materials and Methods. An elastoplastic model of material behavior and a shock indentation scheme were used, which took into account the masses of the indenter and the striker coupled by linear springs. …”
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POLARIZATION REPRODUCTION OF STRUCTURAL ANISOTROPY MAPS OF BRAIN PREPARATIONS FOR DIFFERENTIAL DIAGNOSTICS OF HEMORRHAGES OF TRAUMATIC AND NON-TRAUMATIC GENESIS
Published 2025-04-01“…As a result, the corresponding random values and their fluctuations in the coordinate distributions of linear birefringence of the structural elements of the polycrystalline architectonics of the experimental brain samples decrease. …”
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The features of the Paleozoic-Mesozoic complexes of Kiber Cape (Chukotka, Arctic Russia): a structural-deforma-tion analysis
Published 2017-02-01“…The research was based on a structural analysis of the linear and planar elements. …”
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Combined Evaluation of Room Acoustic Descriptors in Different Structural Configurations via ODEON Simulations and Artificial Neural Networks
Published 2024-09-01“…This study evaluated the combined sensitivity analysis of several room acoustic descriptors: reverberation time (T30), center time (Ts), early decay time (EDT), definition (D50), clarity (C50), useful-to-detrimental sound ratio (U50), and speech transmission index (STI); and also it assessed how these descriptors responded jointly to different acoustic-structural factors. The first-order factors were background noise (A), acoustic ceiling tile sound absorption coefficient (B), confinement (C), and occupancy (D), along with their interaction effects. …”
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Hydraulic Performance Modeling of Inclined Double Cutoff Walls Beneath Hydraulic Structures Using Optimized Ensemble Machine Learning
Published 2025-07-01“…Abstract This study investigates the effectiveness of inclined double cutoff walls installed beneath hydraulic structures by employing five machine learning models: Random Forest (RF), Adaptive Boosting (AdaBoost), eXtreme Gradient Boosting (XGBoost), Light Gradient Boosting Machine (LightGBM), and Categorical Boosting (CatBoost). …”
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Numerical Analysis of Flow-Induced Vibration of Heat Exchanger Tube Bundles Based on Fluid-Structure Coupling Dynamics
Published 2022-01-01“…In this paper, based on the continuity equation, momentum equation, turbulence model, and dynamic grid technology, the vibration response of the elastic tube bundle under the mutual induction of shell and tube fluids is studied by using pressure-velocity solver and two-way fluid-structure coupling (FSC) method. The results show that the monitoring points on the same connection block have the same vibration frequency, while the vibration amplitude is different. …”
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A Compact MultiBand and Dual-Polarized Mobile Base-Station Antenna Using Optimal Array Structure
Published 2015-01-01Get full text
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