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Effect of braking speed on the property of high-performance copper-based brake pads
Published 2021-08-01“…The results show that, with the increase of the braking speed, the friction coefficient of the self-made brake pads first decreases and then increases, while the friction coefficient of the commercial brake pads remains unchanged after decreasing. …”
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Pre-Sowing Treatment of Leguminous Crop Seeds with a Magnetic Field
Published 2019-02-01“…Pre-sowing treatment of seeds in a magnetic field can increase crop yields, reduce the incidence of plants and improve product quality.Research purpose To analyze the mechanism of the magnetic field influence on seeds, determine the most effective mode of pre-sowing treatment of leguminous crop seeds in a magnetic field and design parameters of the equipment.Materials and methods The authors have determined that under the influence of a magnetic field, the rate of chemical and biochemical reactions in plant cells increases, the transport of ions and molecules through the cell membrane increases, and the membrane permeability increases, so the sowing qualities of seeds improve and their yield increases. …”
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Wind-Induced Vibration Response and Weak Locations of 110 kV Diverging Branch Rods Under Strong Wind
Published 2025-03-01“…Under a 45° wind reaction angle, the displacement at the top of the tower is the smallest, but the stress at the base is second only to that under a 90° wind reaction angle. …”
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Dynamic Response of Railway Subgrade Under Train Load and Freeze–Thaw Action
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Seismic Response Characteristics of High-Speed Railway Hub Station Considering Pile-Soil Interactions
Published 2025-07-01“…The results show that the hub station structural system, considering pile-soil interaction, presents the ‘soft-upper-rigid-down’ characteristics as a whole, and the natural vibration is lower than that of the station structure with a rigid foundation assumption. Under the action of three strong seismic motions, the nonlinear site seismic effect is significant, the surface acceleration is significantly enlarged, and decreases with the buried depth. …”
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The Influence of Running Technique Modifications on Vertical Tibial Load Estimates: A Combined Experimental and Machine Learning Approach in the Context of Medial Tibial Stress Syn...
Published 2025-04-01“…This study investigated whether changes to speed, cadence, stride length, and foot-strike pattern influence vGRF and TA. …”
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DEM-Based Simulation Study on the Operational Performance of a Single Horizontal Shaft Forced-Action Mixer
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Kinetic analysis of change of direction simulating a defensive action in soccer players with and without acute fatigue
Published 2024-11-01“…Times, forces, impulses, and force rates for different subphases during support were compared. Speeds remained consistent across pre-fatigue (4.53 ± 0.55 m s-1) and post-fatigue (4.58 ± 0.70 m s-1) trials. …”
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The direct cost and geography of Brussels mass transport’s operating delays
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Feasibility of a Non-Anticipatory, Random-Action Target System to Improve Shooting Performance: A Brief Field Trial
Published 2024-11-01“…Observational data were gathered from a single-day, three-round trial to test shooting accuracy and shooting errors when shooters were unable to anticipate target appearance location and target exposure speed. In Trial 1, the target exposure time was 0.5 s, which increased to 0.7 s in Trial 2, and decreased back to 0.5 s in Trial 3. …”
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An Adiabatic-Expansion-Induced Perturbation Study on Gas–Aerosol Partitioning in Ambient Air—Formation of NH<sub>4</sub>NO<sub>3</sub> and Microdroplet Nitrogen Fixation (2)
Published 2025-05-01“…Moreover, our analysis suggests that the line speed of microdroplets may be one of the key factors in determining the occurrence, stoichiometric ratio and efficiency of the redox reaction. …”
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Effect of biochar and cyanobacteria crust incorporation on soil wind erosion in arid mining area under freeze-thaw action
Published 2025-05-01“…Cyanobacteria crusts can inhibit wind erosion, but their biomass decreases under freeze-thaw conditions. There is limited research on whether combining biochar with cyanobacteria crusts can alleviate the impact of freeze-thaw on their wind erosion resistance. …”
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Measurement report: Long-term assessment of primary and secondary organic aerosols in the Shanghai megacity throughout China's Clean Air actions since 2010
Published 2025-05-01“…Furthermore, SOC concentrations exhibited simultaneous increases in summer, particularly when O<span class="inline-formula"><sub>3</sub></span> concentrations exceeded 50 <span class="inline-formula">µ</span>g m<span class="inline-formula"><sup>−3</sup></span>, indicating that stronger oxidation reactions contribute to higher SOC concentrations. …”
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Current Analytical Methods and Challenges for the Clinical Diagnosis of Invasive Pulmonary Aspergillosis Infection
Published 2024-11-01“…Further study into methods that offer increased speed and both analytical and clinical sensitivity to decrease diagnosis time for IPA is warranted.…”
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Development of technologies and tools for drilling additional wells from artificial bottom-hole with whipstock of continuous action in hard and very hard rocks
Published 2020-11-01“…A feature of the work of a milling type whipstocks is that the creation of a deflecting force is carried out due to the constant influence of the axial load, the value of which proportionally affects the speed of drilling. A review of the materials used to create an artificial bottom led to the conclusion that at present there are no curable materials that would have a hardness higher than category 8 for drillability, which means that when trying to drill a new direction of a well in rocks more than 8 grade for drillability, the speed drilling with a continuous action whipstocks will exceed the optimum and reduce the intensity of the buildup rate whipstock.Conclusion. …”
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Method for Solving the Problem of Load Movement over the Ice Cover of a Reservoir along a Complex Trajectory
Published 2023-07-01“…Calculations showed that the deflection of the ice cover increased markedly with the growth of speed and tangential acceleration of the load movement. …”
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