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461
Asymptotically Optimal Status Update Compression in Multi-Source System: Age–Distortion Tradeoff
Published 2025-06-01“…The following three theoretical results are established: (1) The combination of two uniform quantizers with different parameters, along with their corresponding AoI-optimal encoders, provides an asymptotically optimal solution for the multi-quantizer compression scheme. (2) The combination of a piecewise uniform <i>w</i>-quantizer with an AoI-optimal encoder provides an asymptotically optimal solution for the single-quantizer compression scheme. (3) For both schemes, the optimal sum of the average ages is asymptotically linear with respect to the log distortion, with the same slope determined by the sources’ arrival rates.…”
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462
Stochastic inversion method based on compressed sensing frequency division waveform indication prior
Published 2025-01-01“…This method fully considers the geophysical mapping relationship between the observed seismic data and the parameters to be inverted across different frequency bands. And the correlation coefficients between the seismic data at the known points and the predicted points are obtained by solving the low-rank system of equations through the compressed sensing method. …”
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463
A stretchable frequency reconfigurable antenna controlled by compressive buckling for W-band applications
Published 2025-05-01“…By releasing the substrate at varying compression ratios, the antenna reshapes into different 3D configurations, enabling continuous frequency reconfigurability. …”
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464
Shearlet‐based compressed sensing with non‐local similarity for MRI breast image reconstruction
Published 2021-12-01“…The shearlet dictionary is adopted in MRI compressed sensing to represent breast tissues with sparser data in different scales and directions. …”
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465
Study on the mechanical properties of negative poisson’s ratio honeycomb prepared by equibiaxial compression method
Published 2025-01-01“…ObjectiveNegative Poisson’s ratio materials are widely used in various fields because of their unique properties of expansion in tension and contraction in compression.MethodsA honeycomb material with negative Poisson’s ratio was obtained by equal biaxial compression of the two-dimensional Voronoi model, and the effects of different compression ratios on its static tensile/compressive mechanical properties were studied by numerical simulation.ResultsThe results show that the tensile and compressive stress-strain curves of the two-dimensional negative Poisson’s ratio honeycomb prepared by the above method have typical "three-stage" deformation characteristics of porous materials, and show significant tensile and compressive strength asymmetry. …”
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466
Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars
Published 2020-01-01“…An experimental study on the steel tube confined reinforced concrete (STCRC) column with binding bars under axial compression is conducted. The bearing capacity and failure modes are obtained. …”
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467
Constitutive Relation of Polypropylene-Fiber-Reinforced Mortar Under Uniaxial Compression at High Temperature
Published 2025-02-01“…This study explores the effects of varying PP fiber contents (0%, 0.2%, 0.4%, 0.6%, 0.8%, and 1%) and different temperature exposures (25 °C, 200 °C, 400 °C, 600 °C, 800 °C, and 1000 °C) on the performance of cement mortar. …”
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468
Analyzing the compressive performance of lightweight foamcrete and parameter interdependencies using machine intelligence strategies
Published 2025-07-01“…The generated models can determine the compressive strength of foamcrete for different input parameter values, hence enhancing its practical uses and saving time and financial resources compared to laboratory testing.…”
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469
Study on the triaxial compressive properties of alkali activated concrete after freeze-thaw cycles
Published 2025-07-01“…Abstract This study investigates the mechanical behavior of alkali-activated concrete (AAC) subjected to triaxial compression under different confining pressures and freeze-thaw cycles. …”
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470
Performance Analysis of CFRP Composite Strips Confined RC Columns under Axial Compression
Published 2015-01-01Get full text
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471
Uniaxial compressive strength of cemented coal gangue backfill based on response surface methodology
Published 2025-08-01“…Abstract Cemented Coal Gangue Backfill (CCGB) plays a pivotal role in sustainable mining practices, as its uniaxial compressive strength (UCS) directly dictates backfill stability, mining safety, and operational efficiency. …”
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472
A Secure Learned Image Codec for Authenticity Verification via Self-Destructive Compression
Published 2025-01-01“…SLIC leverages adversarial training to fine-tune a learned image codec that introduces out-of-distribution perturbations, ensuring that the first compressed image retains high quality while subsequent re-compressions degrade drastically. …”
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473
Chest Compression Skill Evaluation System Using Pose Estimation and Web-Based Application
Published 2025-07-01“…To facilitate regular chest compression training, this study aims to improve the accuracy of a chest compression evaluation system using posture estimation and to develop a web application. …”
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474
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475
Compressive deformation behavior of functionally graded lattice structures of stainless steel 316L
Published 2025-03-01“…All the prepared lattice structures (uniform and graded) were tested under compression at strain rates of 0.01, 0.1 and 1 s−1. …”
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476
Mechanical Properties of Low-carbon Ultra-high Performance Concrete under Uniaxial Compression
Published 2025-04-01“…Eleven groups in a total of 154 specimens were fabricated with three factors, namely, cement replace ratio, steel fiber volume content, and water-binder ratio taken into account. Through cube compression tests at different ages, flexural tests, and uniaxial compression tests, the mechanical properties of LC-UHPC, including failure patterns, basic strength, and deformation capacity, were analyzed. …”
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477
Identification of crack development in granite under triaxial compression based on the acoustic emission signal
Published 2021-01-01“…Combined with the stiffness curve of granite specimens and acoustic emission signal in the time domain and frequency domain, the crack development characteristics in different stages were analyzed. The results showed that the acoustic emission signals of granite samples under triaxial compression can be divided into four stages: quiet period 1, active stage 1, quiet period 2, and active stage 2. b -value attained its maximum value in the active phase 2 when it is close to the sample loss, and then drops rapidly, which means the propagation of cracks and the formation of large cracks. …”
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478
Experimental Study on the Dynamic Compressive Response of Sand with Respect to Relative Density and Water Content
Published 2025-05-01“…This paper presents the findings of dynamic compression tests conducted on sand specimens utilizing a Æ 100 mm Split Hopkinson Pressure Bar (SHPB) apparatus. …”
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479
Effect of Compressive Behaviours of Tail Salt Filling Materials on Roof Deformation in Potash Mine
Published 2021-01-01Get full text
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480
Study on Energy Dissipation Characteristic of Ice-Rich Frozen Soil in SHPB Compression Tests
Published 2022-01-01Get full text
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