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521
Pore-Throat Structure and Fractal Characteristics of Tight Sandstones: A Case Study from the Chang 63 Sublayer, Southeast Ordos Basin
Published 2023-01-01“…In addition, the fractal dimension of the medium pores (DP−2) has a negative correlation with porosity, permeability, median pore-throat radius, maximum mercury saturation, mercury withdrawal efficiency, displacement pressure, and content of quartz, while a positive correlation with feldspar content, sorting coefficient, and coefficient of variation. …”
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522
Electric discharge process modelling when piston pins recovery in internal combustion engines
Published 2024-05-01“…The studies have shown that exploding wires made of iron, copper, and tungsten are not effective in restoring piston pins with an internal radius of up to 10 mm. The pressure in the case of their use does not exceed 100 MPa. …”
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523
Pore size characterization of Cretaceous ironstone by low-field nuclear magnetic resonance technique
Published 2026-02-01“…Using an established average surface relaxivity value (338 µms−1) for haematite, the logarithmic mean of pore radius was estimated from the pore size distributions with values of 0.3098 µm, 33.57 µm and 733.3 µm, for micropores, mesopores and macropores, respectively. …”
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524
Study on the Radial Displacement Law and Permeability Enhancement Effect of Coal Body around Hydraulic Flushing Drilling
Published 2021-01-01“…Hydraulic flushing drilling technology can not only improve the efficiency of high-pressure and low-permeability geological reservoir coalbed methane drainage but also effectively reduce the probability of coal and gas outburst disasters through pressure relief. …”
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525
Hierarchical segmentation framework with dynamic parameter optimization for accurate stem-leaf partitioning and phenotypic extraction in maize
Published 2025-12-01“…However, traditional phenotyping methods relying on manual measurements or two-dimensional images have significant limitations in terms of efficiency and accuracy, particularly in effectively analyzing the complex three-dimensional structures of plants. …”
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526
Aerodynamic optimization of small diffuser Augmented Wind Turbines: A differential evolution approach
Published 2025-04-01“…Although a large part of wind generation occurs due to large turbines, small wind turbines meet the demands of distributed and isolated generation. The efficiency of wind turbines, however, is theoretically limited and one possible way to improve the use of wind energy is the use of Diffuser Augmented Wind Turbines (DAWTs). …”
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527
Intelligent fault diagnosis of shearer based on simplified interval kernel global-local feature fusion
Published 2024-11-01“…The results show that compared with the midpoint-radius kernel PCA, the kernel local preservation projection and interval kernel global-local feature fusion algorithms, the proposed method has a good monitoring effect on the single variable simulation fault, the multi-variable pick loss and the waterway blockage fault of shearers. …”
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528
Effect of New Mesh Fins on the Heat Storage Performance of a Solar Phase Change Heat Accumulator
Published 2025-07-01“…The results showed that with the increase in the radius <i>R</i> of the mesh fin, the heat storage time decreased first and then increased. …”
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529
Powerful high-orbit gyro-TWT
Published 2021-08-01“…An optimized version of a high-orbit gyroTWT has been obtained, which has an electronic efficiency of 28 %, a wave efficiency of 23 %, a gain of 34 dB and a gain band of 11 % at an operating frequency of more than 30 GHz. …”
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530
Fourier Analysis of CMFD Method in Cylindrical Geometry
Published 2025-06-01“…However, the acceleration efficiency of CMFD diminishes progressively as the model scale increases, particularly in systems with high radius. …”
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531
Gas injection capacity of low permeability reservoirs considering microscopic characteristics
Published 2025-07-01“…However, due to the hydrophilicity and heterogeneity of reservoirs, residual oil are trapped as an isolated phase, leading to the stabilization of gas-phase permeability and displacement efficiency (with a maximum of 52%), and limiting the development potential of reservoirs. …”
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532
The Effect of Hydraulic Partitioning on Prediction the Rate of Bed Load Transport in Gravel-bed Rivers using Support Vector Machine
Published 2019-03-01“…The obtained results confirm the superiority of the model with input parameters of Froude number, the ratio of average velocity to shear velocity (), the ratio of hydraulic radius to the median grain diameter () and shields number () with Nash-Sutcliffe efficiency (NSE) of 0.806. …”
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533
Photo-induced processes of iron oxide nanoparticles to enhance laser therapy
Published 2022-02-01“…Theoretical modeling showed that the heating of iron oxide nanoparticles with a radius of 35 nm under the action of laser radiation is about 89°C and 19°C for wavelengths of 458 and 561 nm, respectively. …”
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534
A Quantitative Evaluation of UAV Flight Parameters for SfM-Based 3D Reconstruction of Buildings
Published 2025-06-01“…A comprehensive experimental analysis was conducted to systematically investigate and quantitatively evaluate the effects of various shooting patterns and parameters on SfM reconstruction quality and processing efficiency. This study implemented a systematic experimental framework to test various UAV flight patterns, including circular, surface, and aerial configurations. …”
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535
Calculating Value in Hand and Wrist Care: A Systematic Review on the Current Literature
Published 2025-09-01“…Studies assessing distal radius fracture care highlighted reduced imaging strategies as more cost effective than traditional methods and bandaging as more cost effective than rigid immobilization. …”
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536
Multi-physics Coupling within Chalk River Unidentified Deposit on Pressurized Water Reactor Fuel Rod
Published 2025-02-01“…The study also analyzed the impact of CRUD geometric parameters such as thickness, porosity, chimney density, and chimney radius on boron accumulation and the heat transfer performance of fuel rods. …”
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537
Intelligent micro-electro-mechanical system for predictive nano-drug synthesis: Acousto-microfluidic heat and mass transportation
Published 2025-09-01“…However, increasing alpha alongside higher voltage and curvature radius values leads to a substantial 115% increase in Mechanical Energy Consumption MEC. …”
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538
The Occurrence of Adsorbed Tight Oil and Its Effect on Porosity and Permeability Reduction of Triassic Lacustrine Sandstone Reservoir
Published 2022-01-01“…Adsorbed oil is distributed in all kinds of reservoir spaces and primarily concentrated in the pore−throat radius<0.25 μm. The distribution characteristics of reservoir spaces control the occurrence states of adsorbed tight oil. …”
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539
Machine learning-based prediction method for open-pit mining truck speed distribution in manned operation
Published 2025-06-01“…Open-pit mining is a significant method for coal mining, making it crucial to enhance the transportation efficiency of mining trucks. Using machine learning to achieve accurate prediction of vehicle speed, in order to improve production efficiency, reduce costs, and enhance work safety. …”
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540
Modeling and Evaluation of Penetration Process Based on 3D Mechanical Simulation
Published 2024-10-01“…Next, various mechanical responses are analyzed, considering the influence of parameters, such as the radius and shape of the injection micropipettes, material properties, and size of the cells. …”
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