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5141
Geometric morphometric analysis of projectile points from the Southwest United States
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Article -
5142
Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines
Published 2021-01-01“…In this paper, a series of performance tests, in terms of the water-cement ratio, viscosity, drainage rate, presetting time, final setting time, compressive strength, and permeability were conducted on the cement-fly ash-based grout at various mixture ratios. The evolution of these performances versus different mixture ratios was analyzed; targeting at the reasonable flowability and hardened strength of grouting materials, an optimized mixture ratio was recognized for water bursting prevention in coal mines. …”
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5143
Distribution and Thermal Maturity of Devonian Carbonate Reservoir Solid Bitumen in Desheng Area of Guizhong Depression, South China
Published 2017-01-01“…The results of Vb (%), LRM, and FTIR analysis demonstrate that the solid bitumen has experienced high temperature and evolved to the residual carbonaceous stage. The thermal evolution of Devonian reservoirs had experienced four stages. …”
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5144
Three-dimensional computational fluid dynamics (3D-CFD) simulation of hydrogen transport to investigate the effect of output voltage and inlet anode velocity on proton exchange mem...
Published 2025-01-01“…Subsequently, it is deployed to simulate the distribution and evolution of various parameters including current density, hydrogen and oxygen mass fractions, pressure and temperature in the PEM fuel cell. …”
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5145
Using Ce to modify inclusion in spring steel
Published 2017-01-01“…To deform those harmful inclusions to improve material performance,the evolution process of Al2O3 inclusions was investigated through the surface and line scanning. …”
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5146
SOCIALINĖS EPISTEMOLOGIJOS IDĖJA IR NATŪRALISTINĖ DILEMA
Published 2003-01-01“…naturalism are inevitably methodologically inconsistent. The evolution of the approaches of both the social epistemologists demonstrates this. …”
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5147
Investigation into Macro- and Microcrack Propagation Mechanism of Red Sandstone under Different Confining Pressures Using 3D Numerical Simulation and CT Verification
Published 2021-01-01“…Based on the homogenizing treatment and reasonable parameter calibration, the internal and external crack expansion and evolution processes of the rock were simulated by the PFC3D model and the simulation results are consistent with the results obtained from the triaxial compression test and the CT scanning. …”
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5148
Evolutionary Game Analysis of Online Shopping Quality Control: The Roles of Risk Attitude and Government Supervision
Published 2021-01-01“…By using numerical simulation analysis, the influences of government supervision intensities on the evolution trend of members’ quality behaviours are analysed with various risk attitude combinations in various cases. …”
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5149
Tracking solid electrolyte interphase dynamics using operando fibre-optic infra-red spectroscopy and multivariate curve regression
Published 2025-01-01“…By establishing molecular fingerprints that can be used to identify reaction products, IR-FEWS combined with MCR-ALS enables improved understanding of SEI evolution during cell formation with notable differences stemming from electrolyte or anode material. …”
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5150
Mechanical Behavior and Acoustic Emission Characteristics of Sandstone Under Different Cyclic Loading and Unloading Disturbance Rates
Published 2025-01-01“…The influence of loading and unloading disturbance rates on mechanical properties, fracture characteristics, acoustic emission (AE) temporal‐spatial evolution, and fractal characteristics of AE spatial distribution were analyzed. …”
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5151
Safety Distance of Shotcrete Subjected to Blasting Vibration in Large-Span High-Speed Railway Tunnels
Published 2019-01-01“…Minimum safety distance between shotcrete and blasting positions was calculated based on bond failure criterion. Evolution law considering different factors including blasting charge, rock mass class, and setting time of shotcrete was also obtained, which could be applied to determine blast charge shotcrete arrangements for tunnel constructions in future. …”
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5152
A Step-by-Step Equivalent Microprediction Method for the Mechanical Properties of Composite Solid Propellants considering Dewetting Damage
Published 2022-01-01“…A microscale finite element prediction model of the propellant considering dewetting damage was constructed to study the evolution process of the microdamage of the propellant. …”
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5153
Comparative analysis of the complete plastomes of garlic Allium sativum and bulb onion Allium cepa
Published 2018-08-01“…Sequencing and comparative characterization of plant plastid genomes, or plastomes, is an important tool for modern phylogenetic and taxonomic studies, as well as for understanding the plastome evolution. The genus Allium L. (family Amaryllidaceae) incorporates more than 900 species, includes economically significant vegetable crops such as garlic A. sativum, onion A. cepa, leek A. porrum, etc. …”
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5154
Balances of Power, Threat, and Interests: The Logic behind China-Russia Strategic Alignment in the Post-Cold War Period
Published 2021-10-01“…In order to provide a comprehensive and methodologically consistent assessment of the main drivers of the China-Russia relations within the framework of the post-Cold War international system evolution, this paper draws on the latest findings in the theory of international alliances. …”
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5155
Structural Damage Identification through an Optimal Sensor Placement Approach and the Modal Strain Energy Based Index
Published 2024-02-01“…In the first stage, a correlation function between the reconstructed mode shapes using the iterated improved reduced system (IRS) method and the complete mode shapes of a structure is defined and then the function is minimized via the binary differential evolution (BDE) algorithm to find the optimal sensor placement of the structure. …”
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5156
Preparation of high quality ferrovanadium nitride by carbothermal reduction nitridation process
Published 2017-01-01“…From the results of X-ray diffraction (XRD) and thermodynamic calculations, phase evolution sequence of V2O5 can be obtained as: V2O5→VO2→V2O3→V(C, N, O). …”
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5157
Experimental Investigation of Sandstone under Cyclic Loading: Damage Assessment Using Ultrasonic Wave Velocities and Changes in Elastic Modulus
Published 2018-01-01“…This laboratory study investigated the damage evolution of sandstone specimens under two types of cyclic loading by monitoring and analyzing changes in the elastic moduli and the ultrasonic velocities during loading. …”
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5158
Global Competitiveness Potential of U.S. Nuclear Energy Technologies
Published 2025-02-01“…The first section outlines the key stages and drivers of the U.S. nuclear energy industry evolution in the second half of the 20th century. The author notes that the development of the industry was steadily slowing down after a period of rapid growth in the 1960–1970s due to both purely economic reasons and extraordinary factors, including the accident at the Three Mile Island nuclear power plant. …”
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5159
AI-driven innovation within the ICT sector
Published 2025-01-01“…Ultimately, this research uniquely contributes to the field by providing a comprehensive synthesis of existing frameworks and their applicability to AI driven innovation, advocating for the continuous evolution of these frameworks to align with emerging technological trends. …”
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5160
Coal Seam Gas Extraction by Integrated Drillings and Punchings from the Floor Roadway considering Hydraulic-Mechanical Coupling Effect
Published 2022-01-01“…This model involves the equations of gas sorption and diffusion, gas and water seepage, coal deformation, and evolution of porosity and permeability. Based on these, the procedure of gas extraction through the floor roadway combined with hydraulic punching and ordinary drainage holes was simulated, and the gas extraction results were used to evaluate the outburst danger of roadway excavation and to verify the engineering practice. …”
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