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441
Study of wear resistance and friction coefficient of polymeric materials for metal-polymer gears under dry friction
Published 2025-06-01“…The wear resistance of polyamides (PA6, PA66, PA6+30GF, PA6+30CF, PA6+MoS2, PA6+oil), polyacetals (POM-H, POM+35PTFE, POM+20PTFE, POM+60Bronze, POM+20PTFE+30Bronze; POM+10PTFE+20Bronze, POM+15PTFE+15GF, POM+10PTFE+10GF, POM+10PTFE+20Bronze+10GF, POM+10PTFE+15Bronze+5GF), polyetheretherketones (PEEK, PEEK+30GF), and polyethylene terephthalates (PET, PET+PTFE) on steel has been studied in this work. In order to determine their wear resistance and sliding friction coefficient, the authors’ method of model triboexperimental studies of materials under sliding friction according to the pin-on-disk scheme was used. …”
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442
Inherent Optical Properties Attenuation Coefficient Modelling for Optical Shallow Water in Kepulauan Seribu of Jakarta, Indonesia
Published 2024-06-01“…The results of IOP attenuation coefficient modeling of multispectral remote sensing based on the condition of local water parameters is Kd(λ) = 1.4369 ((a(λ) + b(λ)) / Cos θ) + 0.072. based on the modified Gordon method, The modelling results were obtained with an accuracy of 0.98 determination coefficient (R2) and 0.029 Root Mean Square Error (RMSE).…”
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443
Weighted correlation coefficients for q-rung orthopair fuzzy sets with application in multi-criteria decision-making
Published 2025-05-01“…In many real-world MCDM scenarios, the criteria weights are often unknown, which poses a challenge for methods that rely on user-defined weights. This highlights the need to develop a reliable approach for determining these weights. …”
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444
Evaluation of influence of thermoplastic slurry flow conditions on heat transfer coefficient during beryllium ceramic formation
Published 2024-06-01“… The article presents the results of calculation of the influence of thermoplastic slurry flow conditions on the total heat transfer coefficient when forming ceramic products. Methods of detailed description of casting processes and thermal calculations have been developed to ensure reliable correspondence of calculated data and experimental results implemented on the basis of calculational experiment. …”
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445
Whole-body diffusion-weighted magnetic resonance imaging by estimating the measurable diffusion coefficient in Hodgkin lymphoma
Published 2016-02-01“…Objective: to determine whether the measurable diffusion coefficient (MIC) may be used to differentiate normal and lymphomatosisaltered lymph nodes (LNs) in patients with Hodgkin lymphoma (HL).Material and methods. …”
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446
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447
The Pore Diffusion Coefficient of Iodide Ion in Rock Samples Using X-ray K-edge Imaging
Published 2023-08-01“…The diffusion method, which measures the steady-state diffusion flux of non-sorbing tracers, such as I− and HTO, has been widely used for the determination of diffusion coefficients. …”
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448
Improvement of methods for estimation of catchability for trawl survey systems with use of hydroacoustic means (on example of walleye pollock in the Okhotsk Sea)
Published 2015-12-01“…The experimental method of its estimation (comparing of fish density in towed volume determined by other tools with trawl catch) is considered as the most authentic. …”
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449
Research on Heat Transfer Coefficient Prediction of Printed Circuit Plate Heat Exchanger Based on Deep Learning
Published 2025-04-01“…Notably, in predicting the heat transfer coefficient of the hexagonal channel, the determination coefficient (R<sup>2</sup>) of the Transformer–LA model reaches 0.9993, indicating excellent prediction performance. …”
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450
Methods of Forming Orthogonal Components of Input Signals for Relay Protection
Published 2019-02-01“…It is concluded that most of the existing methods for determining orthogonal components are sensitive to the fundamental frequency deviation of the sine signal. …”
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451
SPECTROPHOTOMETRIC DETERMINATION OF ATORVASTATINE CALCIUM
Published 2015-04-01“…Precision was determined at the level of convergence. Accuracy was established by additives method. …”
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452
Influence of Transformation Coefficient of Refrigerating Machine on Exergetic Efficiency of Air Conditioning System of Operating Clean Rooms
Published 2023-07-01“…Exergetic method is a universal way of thermodynamic research of various processes of energy transformation in energy technological systems, to which air conditioning system for clean room belongs. …”
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453
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454
Development and Validation of a High-Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry Method for the Simultaneous Determination of Arsenic and Mercury...
Published 2025-03-01“…The simultaneous determination of arsenic and mercury species in human urine is critical for clinical diagnostics and therapeutic monitoring because it reduces the costs, time, and consumption of samples. …”
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455
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Determinação de parâmetros de transporte de metais pesados em Latossolo compactado Determination of transport parameters for heavy metals in compacted Oxisol
Published 2005-12-01“…The use of the cumulative mass method, based on a reduced number of pore volumes, in the determination of transport parameters, reduces time and costs involved in tests.…”
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457
Rapid Spectrophotometric Determination of Phenoxazine
Published 2010-06-01“…The Beer’s law was obeyed for phenoxazine concentration range from 1 to 6 µg mL-1 with 0.003 µg mL-1 detection limit and provided variation coefficients between 0.4 to 1.7 %. This method was successfully applied for the determination of phenoxazine in aqueous samples…”
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458
Construction of Evaluation Indicator System and Analysis for Low-Carbon Economy Development in Chengdu City of China
Published 2025-07-01“…Then, an improved Analytic Hierarchy Process (AHP) method based on judgment matrices is proposed to determine subjective weights of indicators, while Entropy Weight Method (EWM) and Variation Coefficient (VC) method are used to determine objective weights of the evaluation indicators. …”
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459
Estimation of the Coefficients of the Equation of Acoustic Target Strength Based on the Morphology of Coregonus migratorius (Georgi, 1775) Swim Bladder
Published 2020-04-01“…Material and Methods. Ninety‐nine living specimens of C. migratorius served as the study material. …”
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460
Effect of Mixer Rotational Speed on Heat Transfer Coefficient in Preparation of Nickle Perovskite From Laboratory to Bench Scale
Published 2009-07-01“…In this study, we examined a scale-up to production of nickel perovskite catalyst, used in the conversion of natural gas to synthesis gas, using the sol-gel method in the laboratory and a bench-scale reactor. …”
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