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4961
Influence of scale effect on flow field offset for ships in confined waters
Published 2024-01-01“…This proves the feasibility of the numerical and grid division methods. The self-propulsion point of the full-scale ship at Fr=0.108 is determined. …”
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4962
Moving Front Solution of the Reaction-Diffusion Problem
Published 2017-06-01“…In this case the analytical method is an essential component of the study. …”
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4963
Off-Design Analysis of Power-to-Gas System Based on Solid-Oxide Electrolysis with Nominal Power of 25 kW
Published 2025-03-01“…Solid-oxide electrolysis (SOE) offers a method to produce clean hydrogen without harmful emissions, being the most efficient of all electrolysis methods. …”
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4964
Research on provincial implied carbon emissions in China under the shared responsibility driven by new quality productivity: A new approach
Published 2024-12-01“…Key findings include: (1) The CVAT method's determination of responsibility sharing coefficients aligns with fairness and efficiency principles, resulting in a more equitable distribution of implied carbon emission responsibilities conducive to achieving fair carbon emission reduction. (2) Over the research period, national implied carbon emissions exhibited an upward trajectory, increasing from 3.305 billion tons in 2002 to 9.726 billion tons in 2017, with Shandong, Hebei, and Jiangsu provinces ranking among the top emitters in China. (3) Eastern coastal and western regions function as net carbon transfer out regions, while the central, northeast, and southwest regions act as net carbon transfer in regions. (4) The implied carbon transfer network demonstrated relative stability throughout the study period, with Shandong, Hebei, Jiangsu, and Inner Mongolia emerging as major carbon transfer provinces. …”
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4965
Butterfly-like phase shift: a novel gauge for critical coupling of add–drop resonator
Published 2018-07-01“…The response of the ADR under variation of coupling losses and coupling coefficients is studied. The number of allowed states under the critical condition is determined. …”
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4966
Theoretical and technological aspects of ripper working tools operation
Published 2016-10-01“…For realization of this method several operations were used, such as compiling of a global stiffness matrix, a load column, solve simultaneous linear equations, definition of possible movements of nodal points in the soil body across and verticals, and also determination of specific potential energy of elementary soil fragments. …”
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4967
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4968
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4969
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4971
Comparison of normal and reverse phase column in phytosterol detection by high performance liquid chromatography (HPLC)
Published 2013-03-01“…High performance liquid chromatography (HPLC) is the most frequently used method to quantify phytosterols. Although several detectors such as ELSD (evaporative light scattering detector) and UV (ultraviolet detector) are available for HPLC analysis, but UV detector is believed to be much more effective and always preferred in laboratories.In the recent literature available, the reverse phase column was mostly applied to determine phytosterols in HPLC-UV system. …”
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4972
Calculating permissible deviations of vibration accelerations of printed circuit assemblies by simulation modeling
Published 2023-12-01“…The results of comparing the measured values with the calculated tolerance enabled conclusions to be made with regard to the possibility of detecting PCA defects.Conclusions. Using this method of calculating tolerances for the PCA vibration acceleration amplitude allows the presence of defects in REM that do not affect the electrical or thermal characteristics of REM to be determined, thus increasing the efficiency of technical condition control.…”
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4973
Improving The Horizontal Axis Wind Turbine Blade Profiles
Published 2018-10-01“…Using the Taguchimethod, the optimum blade profile with a maximum Cm coefficient was obtained.After the profile to be used on the turbine blades is determined, the bladesare designed with the Blade Element Momentum (BEM) theory. …”
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4974
Mathematical Modeling of Load Capacity and Durability of Metal-Polymeric Bearings with a Composite Bushing Based on Polyamides, Polytetrafluoroethylenes, Polyetheretherketones, or...
Published 2024-12-01“…The durability of a mechanical bearing depended not only on the contact pressure but also on the polymer’s wear resistance, Young’s modulus, and friction coefficient. This study determined the quantitative and qualitative effects of these factors on the maximum contact pressures and bearing durability. …”
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4975
Energy savings in SWRO desalination via PRO hybridization: a parametric study
Published 2025-05-01“…The study confirms the viability of PRO-SWRO hybridization as a method for enhancing desalination energy efficiency, and highlights areas for further optimization in membrane design and hydraulic configuration.…”
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4976
multi-objective mathematical model for optimizing the collection and recycling of urban waste under conditions of uncertainty(The subject of study : Karaj city)
Published 2025-03-01“…The Lagrange release solution method can be used as a suitable method to reduce problem-solving time. …”
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4977
Automated Analysis of Service Life of Air-Lines of the Electricity Transmission of Electric Power Systems
Published 2021-10-01“…Basic EPS objects, which service life has exceeded normative value, increasingly affect – every year to a greater extent – the efficiency of overall performance. This manifests itself in increase of a number of automatic emergency shutdowns, an amount and complexities of accident-hazardous defects. …”
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4978
Dynamics of ultrafast laser introduced breakdown in water and ethanol
Published 2025-01-01“…Experimental results indicate that under the same laser energy, the initial velocity of the shock wave generated in ethanol is slightly lower than that in water. This is mainly determined by liquid properties (viscosity coefficient, density, molecular weight, breakdown threshold). …”
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Optimal Control for A SEIR Epidemiological Model Under the Effect of Different Incidence Rates
Published 2023-04-01“…Euler-Lagrange equations corresponding to the optimality conditions of the considered model are first determined by Hamiltonian’s formalism. Afterward, the optimal system with right and left fractional Caputo derivatives are solved numerically by the forward-backward sweep method combined with the fractional Euler method. …”
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