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4081
Propagation Laws of Blasting Seismic Waves in Weak Rock Mass: A Case Study of Muzhailing Tunnel
Published 2020-01-01“…The results showed that the tangential main frequency decreases rapidly and the radial main frequency decreases slowly with the increase of proportionate charge quantity. …”
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4082
A Research on the Effect of Heterogeneities on Sandstone Matrix Acidizing Performance
Published 2019-01-01“…Firstly, a heterogeneity model is built for mineral and porosity distributions by using the semivariogram model of geological statistics, based on which we generate spatially correlated porosity and mineral distributions. Next, a model of radial acid flooding is developed based on mass balance and the chemical reactions between the acids and minerals occurring during the acidizing process. …”
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4083
Co-Simulation Model for Determination of Optimal Active Power Filters Settings in Low-Voltage Network
Published 2025-01-01“…The research in this paper was conducted on a real radial low-voltage feeder, where at each node, the variability of production and/or consumption is taken, which is obtained on the basis of real measurements and tests. …”
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4084
An Intelligent Big Data Security Framework Based on AEFS-KENN Algorithms for the Detection of Cyber-Attacks from Smart Grid Systems
Published 2024-06-01“…The Polar Bear Optimization (PBO) algorithm is used to efficiently determine the parameters for the estimate of radial basis function. Moreover, several types of smart grid network datasets are employed during analysis in order to examine the outcomes and efficiency of the proposed AdaBelief Exponential Feature Selection- Kernel based Extreme Neural Network (AEFS-KENN) big data security framework. …”
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4085
Mechanical Mechanism and Propagation Law of Fissure-Tip Cracks of Large-Size Rock Specimens with Two Precut Fissures
Published 2021-01-01“…In view of acoustic emission (AE), we calculated and obtained the spatial positions of stress peaks in each direction at the fissure tips; through comparison and analysis, the angle corresponding to the negative angle peak of the maximum circumferential tensile stress and the maximum radial tensile stress is basically the same as the angle of the main crack propagation direction generated from the preexisting fissure; it can be inferred that the tensile stress is the main stress inducing crack initiation and specimen failure, which is consistent with the physical characteristics of rock (resistant to compression but not tension). …”
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4086
Tangential Human Posture Recognition with Sequential Images Based on MIMO Radar
Published 2025-02-01“…Recent research on radar-based human activity recognition has typically focused on activities that move toward or away from radar in radial directions. Conventional Doppler-based methods can barely describe the true characteristics of nonradial activities, especially static postures or tangential activities, resulting in a considerable decline in recognition performance. …”
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4087
Association of PPAR Alpha Intron 7 G/C, PPAR Gamma 2 Pro12Ala, and C161T Polymorphisms with Serum Fetuin-A Concentrations
Published 2017-01-01“…Fetuin-A levels and PPAR polymorphisms were determined by radial immunodiffusion and polymerase chain reaction-restriction fragment length polymorphism techniques. …”
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4088
Detection of mite infested saffron plants using aerial imaging and machine learning classifier
Published 2025-01-01“…In order to detect affected plants, two support vector machine (SVM) classifiers with radial basis function (RBF) kernels were used separately for NIR and RGB images. …”
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4089
Characterizing large deformation of soft rock tunnel using microseismic monitoring and numerical simulation
Published 2025-01-01“…The results demonstrate that: (1) Localized stress concentration and layered rock result in significant asymmetry in micro-fractures propagation in the tunnel radial section. As excavation continues, the fracture extension area extends into the deep surrounding rockmass on the east side affected by the weak bedding; (2) Tunnel excavation and long-term deformation can induce tensile shear action on the rock mass, vertical tension fractures (account for 45%) exist in deep rockmass, which play a crucial role in controlling the macroscopic failure of surrounding rock; and (3) Based on the radiated MS energy, a three-dimensional model was created to visualize the damage zone of the tunnel surrounding rock. …”
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4090
First fluctuation measurements using an Imaging Neutral Particle Analyzer on DIII-D
Published 2025-01-01“…The prompt nature of the orbits and thin radial layer found to contribute to synthetic signals suggest INPA passive data may be used to measure the perturbations of confined orbits on a single pass through a plasma instability.…”
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4091
Effects of Ficus umbellata (Moraceae) Aqueous Extract and 7-Methoxycoumarin on Scopolamine-Induced Spatial Memory Impairment in Ovariectomized Wistar Rats
Published 2018-01-01“…Before and after the memory impairment with scopolamine (2 mg/kg BW), animals underwent behavioral evaluations on Y- and radial mazes. As results, age and ovariectomy did not induce significant changes in the reference memory errors. …”
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4092
Association between the Angle of the Left Subclavian Artery and Procedural Time for Percutaneous Coronary Intervention in Patients with Acute Coronary Syndrome
Published 2022-01-01“…Of 245 ACS patients (from November 2019 and May 2021), 79 who underwent PCI via a left radial approach (LRA) were included. We measured the angle of the left subclavian artery in the coronal view on CT imaging as an indicator of the tortuosity and investigated the association between that angle and the clinical variables and procedural time. …”
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4093
Performance improvement of transcritical vapor generator by a novel double-heated annular configuration
Published 2025-02-01“…This enhancement owes to the more favorable radial profiles of fluid thermophysical properties, with specific heat and Prandtl number near the inner side being significantly increased by the outer heating. …”
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4094
Experimental study of the impact of deck-charge structure on blast-induced fragmentation
Published 2025-01-01“…The results indicate that during deck charge blasting, the host concrete undergoes three phases: crushing, further crushing and fracturing, and radial crack development. Fragmentation performance improves within an optimal air-deck ratio range, while excessive ratios lead to poorer fragmentation compared to fully coupled charge blasting. …”
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4095
Design and Fabrication of a Motorized Honey Extractor.
Published 2024“…After the extraction process, the motor is switched off and the extractor is opened to remove the radially extracted frames and the tangentially extracted frames are flipped for re-spinning. …”
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4099
Effects of Different Modification Methods on the Functional Properties and Structure of Chlorella Protein
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4100
HPLC Analysis and Antioxidant Evaluation of Acteoside-Rich Osmanthus fragrans Extracts
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