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1501
Interfacial mechanism of hydrogel with controllable thickness for stable drag reduction
Published 2023-11-01“…The experimental results showed that the average drag reduction of hydrogel surface could reach up to about 56% in Couette flow, which was mainly due to the interfacial polymerization phenomenon that enhanced the ability of hydration layer to delay the momentum dissipation between fluid layers and the diffusion behavior of surface. …”
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1502
Asymmetric warming has different impacts on vegetation growth across various vegetation types on the Tibetan Plateau
Published 2024-12-01“…The Tibetan Plateau, known as “the roof of the world,” experiences the surface warming almost twice as high as the global average. …”
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1503
Diagnostic markers of severe diabetic macular edema in patients with type 2 diabetes
Published 2024-12-01“…According to OCT angiography, the surface area of the superficial foveal avascular zone (FAZ) was on average 0.780 ± 0.002 mm2, the surface area of the deep FAZ was 0.720 ± 0.002 mm2. …”
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1504
Runoff Evolution Patterns and Attribution Analysis in Xiliu Songhua River Basin
Published 2025-05-01“…The annual average precipitation and annual average snowfall ratio in the basin showed a continuous increasing trend, while the annual average potential evapotranspiration showed a continuous decreasing trend. …”
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1505
Synthesis of EPB/TiO2 Activated Carbon Composite Using Microwaves Activation for Purification of Motor Vehicle Exhaust Emissions
Published 2025-02-01“…For CO2 gas, EPB-AC has an average reduction sequentially at 52.6%, 54.25%, 56.52%, and 58.54%. …”
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1506
Ultrasonic characteristics of immune bodies in children with infectious mononucleosis
Published 2021-01-01“…Vozgoment, coefficients: the ratio of spleen mass to body mass (KMS, Km), body length (KI), body surface area (Ks). The average CCM value was 6,47 ± 2,8, the absolute value of the indicator varied from 1,9 to 14,2. …”
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1507
Runoff Evolution Patterns and Attribution Analysis in Xiliu Songhua River Basin
Published 2025-01-01“…The annual average precipitation and annual average snowfall ratio in the basin showed a continuous increasing trend, while the annual average potential evapotranspiration showed a continuous decreasing trend. …”
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1508
Intraocular pressure correlation to progressive retinal nerve fiber layer loss in primary open angle glaucoma as measured by standard and modified goldmann applanation tonometers
Published 2025-04-01“…The study included a total of 940 OCT visits with an average of 6.3 visits per eye over an average of 4.9 years. …”
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1509
Field investigation of efficient thermal conductivity of snow cover on Spitsbergen
Published 2015-03-01“…The data obtained were processed by means of the Fourier technique that allowed deriving relationship between thermal conductivity and snow temperature in regimes of cooling and warming of the snow cover surface. It was found that coefficient of efficient thermal conductivity increases with rising of the snow temperature in the regime of the snow surface cooling, and it does decrease under regime of warming. …”
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1510
Nonporous platinum doped titania films: synthesis, optical and photocatalytic characteristics
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1511
Prediction of vibration in milling of thin-walled aluminum alloy parts using neural network model
Published 2024-12-01“…Additionally, the average milling force was included as an input parameter to predict the displacement of surface vibrations on thin-walled parts using the PSO-BP model. …”
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1512
Evaluation of Streamwise Waveform on a High-Speed Water Jet by Detecting Trajectories of Two Refracted Laser Beams
Published 2011-01-01“…Free surface fluctuations on a high-speed water jet were measured by a laser beam refraction technique. …”
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1513
RESEARCH ON AXIAL MODIFICATION OF CROWD REDUCER GEARS OF LARGE MINING ELECTRIC EXCAVATOR
Published 2019-01-01“…Using the thin slice gear model,statistical average load of excavator mining process is taken as the reference load of modification,the minimum contact stress of gears at the excavator mining position withmaximum statisticalcrowd force is regarded as the objective,the slope modification of the two stage pinion(driving wheel) of the crowd reducer is carried out.Further, no edge load at tooth surface in each mining location is regarded as the objective,the crown modification of the two stage pinion of the crowd reducer is carried out.In the process of excavator mining,compare with pinion without modification,the maximum stress(including contact stress of tooth surface and bending stress of tooth root)of thepinionwith modification decreases significantly,and the edge contact condition of tooth surface is obviously improved.After modification,when the gear is subjected to the statistical maximum load of excavator mining process,the stress value of the gearis still less than the allowable stress.Simulation results show that,axial modification of crowd reducer gears of large mining electric excavator has positive significance for improving carrying ability and contact condition of gears.…”
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1514
Geochemical Content of Lead and its Distribution in Soil of Kirkuk City/Northern Iraq
Published 2023-01-01“…Results of chemical analysis of samples clarified a rise in average of lead in soil samples (26.11 ppm) compared with international average of soil (10 ppm) and with uncontaminated ones (15 ppm), and rise in its average in surface depth (30.2ppm) compared with the lower depths (17.97ppm), and decreases in its average as compared with local soils in other cities in Iraq. …”
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1515
Study on the Meshing Characteristic of Cylindrical Gear with Arcuate Tooth Trace based on the Processing Principle of Parallel Link Mechanism
Published 2019-06-01“…The maximum meshing force,average meshing force and RMS of meshing force all decrease first and then increase with the increase of tooth line radius,it’s optimum at RT=120~240 mm,the fluctuation range of average meshing force and RMS of meshing force is small,while that of maximum meshing force is large. …”
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1516
The relation between heavy metals distribution and particle size fractions in some egyptian soils
Published 2006-06-01“…Heavy metals content was always in the surface layers higher than sub-surface. All metals were highest in clay fraction followed by silt and sand fractions respectively. …”
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1517
Characterization of Graphene/Epoxy Nanocomposites
Published 2025-03-01“…Atomic force microscopy (AFM) shows the average Ra value of the epoxy resin was 29 nm. In comparison, the graphene-based composites were less than 5 nm, significantly decreasing the surface roughness by adding a small amount of nanofillers. …”
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1518
Influence and Optimization of Nozzle Position on Lubricant Distribution in an Angular Contact Ball Bearing Cavity
Published 2024-11-01“…The weighted average of the oil phase volume fraction on the cage guiding surface decreases first and then increases with the increase of the nozzle height and decreases with the increase of the nozzle angle on the ball surface. …”
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1519
Lattice Boltzmann Simulation of Fluid Flow and Heat Transfer in Random Porous Media
Published 2025-01-01“…By varying the pressure, Reynolds number and particle surface temperature, the changes in the flow field cloud map, average resistance coefficient, temperature field cloud map and average Nusselt number under different parameters were obtained. …”
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1520
Design of wavelength rotation graph model applied in wavelength switching optical network
Published 2010-01-01“…Based on distributing uniformly virtual network topology links and associated wavelengths to the surface of rotating sphere,a new wavelength rotation graph model of wavelength switching optical network(WSON) was constructed,and a creative method to solve the routing and wavelength assignment(RWA) problems was proposed.The simulation results show that if the wavelength number of each link is set separately to 4 and 8,the average blocking probability of the RWA based on the rotation graph model reduces by 5.03% and 9.71%,and the average resource utilization increases by 3.3% and 1.54% respectively,as compared with the existing model.This method would be useful for solving the problem of optical network RWA which has wavelength conversion capabilities.…”
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