-
3741
OPTIMIZATION TECHNOLOGY OF FAT-SOLUBLE VITAMINS PRODUCTION BASED ON ALKALINE HYDROLYSIS
Published 2022-07-01“…The yield of the target product has been determined by HPLC.Results. Methods for obtaining the substance of fat-soluble vitamin D from fish raw materials have been considered in detail. …”
Get full text
Article -
3742
Research on Multi-Objective Optimization of Helical Gear Shaping Based on an Improved Genetic Algorithm
Published 2025-04-01“…Traditional design and shaping methods of helical gears may have difficulties in meeting the requirements of multiple performance indicators simultaneously, such as tooth surface accuracy, load-carrying capacity, and transmission efficiency. …”
Get full text
Article -
3743
Utilization of Machine-Learning-Based model Hybridized with Meta-Heuristic Frameworks for estimation of Unconfined Compressive Strength
Published 2025-01-01“…It has traditionally been determined through laboratory core sample testing or by analysis of well-log data. …”
Get full text
Article -
3744
Influence of motivative factors on the performance of civil servants
Published 2021-03-01“…Modern methods of motivating civil servants and their impact on performance are considered. …”
Get full text
Article -
3745
Legal Status of Doctoral Students and Scientific Consultants: Problems and Possible Solutions
Published 2024-09-01“…The issue of the responsibility of a scientific consultant for the dishonest performance of their duties is also touched upon, the scope of which is currently determined by the parties independently, which is subject to motivated criticism. …”
Get full text
Article -
3746
Reduction of Active Power Loss at 110/220 kV Node Substations Using Fuzzy Controller
Published 2019-04-01“…Currently, the evaluation of real static characteristics of the load is determined generally by the following methods: computational, ana-lytical, passive and active experiments. …”
Get full text
Article -
3747
Business Ecosystem Finance: Modern Agenda and Challenges
Published 2023-12-01“…It is determined that a completely new theory of business ecosystem finance will be completed only after the exit from the experimental mode of financing business ecosystems.…”
Get full text
Article -
3748
Comparison of regression based functions and ANN models for predicting the compressive strength of geopolymer mortars
Published 2025-04-01“…The model performance of the methods was compared using root mean square error (RMSE), mean absolute error (MAE) and Nash-Sutcliffe efficiency (NSE) performance statistics. …”
Get full text
Article -
3749
Flexible Hierarchical Multi-Beam Search Algorithm for Millimeter-Wave 3D MIMO Systems With Uniform Planar Arrays
Published 2025-01-01“…Moreover, the simulation results also show that the spectral efficiency of the precoding scheme determined using the proposed search algorithm and codebook is the highest compared to existing methods. …”
Get full text
Article -
3750
USAGE OF HIGH-QUALITY ENGINE OILS WITH EXTENDED REPLACEMENT INTERVALS: FEATURES OF THE EQUIPMENT OPERATION
Published 2019-09-01“…The main performance characteristics of motor oils were assessed using standard methods: kinematic viscosity was measured using a Stabinger viscosimeter, the base number was determined by an automatic AT-500 titrator, the content of wear products was obtained using an ASP-coupled emission spectrophotometer.Results. …”
Get full text
Article -
3751
Process organisation modelling for maintaining rail track geometry
Published 2023-07-01“…The study examines the problem of increasing the efficiency of maintaining rail track geometry.Materials and methods. …”
Get full text
Article -
3752
Consequences of changing regional integration on environmental development, agricultural markets, and food security
Published 2023-10-01“…Internal changes will help the industry increase international competitiveness and efficiency while promoting sustainable development and ensuring food security and environmental safety.CONCLUSION: The article determined that it is necessary to prioritize developing multilateral partnerships to address transportation and logistics challenges in the export and import of agricultural products, and reduce dependence on the import of seeds, breeding products, fodder, and agricultural machinery. …”
Get full text
Article -
3753
A novel smartphone augmented reality-based solution for small intracranial lesion localization with refined reference markers
Published 2025-07-01“…The time required for AR and navigation, the deviation between lesion center points identified by AR and navigation, and the ratio of overlap region (ROR) between the lesion locations determined by both methods, were measured, respectively, to evaluate the AR performance in preoperative planning.ResultsThe average time required for AR was shorter than that for navigation (256.61 ± 69.75 s vs. 454.16 ± 78.85 s, p < 0.05), indicating the favorable efficiency of AR. …”
Get full text
Article -
3754
A novel model-based diagnostics for identifying component degradations in gas turbines for power generation
Published 2024-12-01“…The diagnosis results after off-line washing showed that the air flow rate and efficiency of the compressor were fully recovered, but the turbine efficiency was still degraded by 0.49%p. …”
Get full text
Article -
3755
Mobile machine design through dynamic load simulation on their drive units
Published 2020-07-01“…The work objective is to conduct a comparative analysis of the efficiency of existing calculation methods of statistical characteristics of uncorrelated external actions as applied to a mobile machine presented as a multidimensional dynamic system with actions having different correlations.Materials and Methods. …”
Get full text
Article -
3756
A Hierarchical Archimedean Copula (HAC) model for climatic variables: an application to Kenyan data
Published 2025-06-01“…The structure and parameter estimation of HAC models were determined using the Recursive Maximum likelihood (RML) method. …”
Get full text
Article -
3757
Decomposition of Technological Processes for Evaluating the Performance of Production Line for Pre Sowing Treatment of Seeds
Published 2018-07-01“…An important step in improving the efficiency of crop production is the development of scientifically valid technologies and technical means of presowing preparation and treatment of seeds. …”
Get full text
Article -
3758
Estimating the potential risks of developing clusters in medical industry using various ranking criteria
Published 2018-12-01“…Investigation of the economic entities’ stability should be carried out with the methods of economic and financial analysis. It is shown that risk minimization is possible through the use of methods of financial and economic analysis, which allow estimating, with varying degrees of reliability, the probability of cluster development risks associated with its organizational and economic stability.Scientific novelty: the article presents a model of cluster members’ interaction determining the place of the controlling module as a link that collects and analyzes information from all enterprises and organizations of the cluster, processes it in a convenient form for interpretation and represents it to the management module for making decisions on risk management. …”
Get full text
Article -
3759
ECONOMIC-MATHEMATICAL MODEL OF FORMATION OF INNOVATION AND ENGINEERING INDUSTRIAL CLUSTER
Published 2023-04-01“…The developed algorithm of cluster zoning integrates quantitative and qualitative methods of determining the clustering possibilities of the region’s economy. …”
Get full text
Article -
3760
The Application of Variable Fuzzy Sets Theory on the Quality Assessment of Surrounding Rocks
Published 2022-01-01“…Second, the relative membership degree matrix about the variable fuzzy sets is established, and the weight coefficients are determined based on the entropy weight method. Finally, the fracture behavior level of surrounding rocks is determined using the mean ranking feature value. …”
Get full text
Article