-
4361
ANALYZING UNCONTROLLABLE FACTORS THAT CAUSE DEFECTIVE PRODUCTS BY POISSON AND NEGATIVE BINOMIAL INAR(1) FOR FITTING MODEL
Published 2025-03-01“…This research is based on data of break occurrences in 3 paper machines. The best model for machine 1 is NBINAR(1), while for machine 2 and 3 is PINAR(1). …”
Get full text
Article -
4362
Automating the Curation of DNA Barcode Databases for Vascular Plants
Published 2025-05-01“…ABSTRACT Comprehensive, curated, and current DNA barcode reference databases are essential for both the identification of single specimens and for the interpretation of metabarcoding data. In the case of plants, nuclear (ITS) and plastid (rbcL, matK) markers are commonly used together. …”
Get full text
Article -
4363
MULTI-OBJECTIVE OPTIMIZATION DESIGN OF ROADHEADER’S CUTTING HEAD BASED ON THE GA
Published 2018-01-01“…In order to improve the dynamic reliability of the roadheader,the roadheader’s rigid-flexible coupled model was established based on virtual prototyp,dynamic reliability analysis was done on the rotary table of different structural parameters,evaluation function was established based on mechanical optimization design theory,the function’s design variables was half cone angle,helix Angle and cutting line spacing, the function’s objective function was the minimization of maximum equivalent stress as the objective function.The cutting head’s optimal structural parameters was obtained by genetic algorithm.Based on the cutting productivity and rotary table equivalent stress, the optimal yawing speed was obtained by optimized multi-objective.The results shows that after two optimizations,rotary table maximum stress is decreased 18.495 MPa,the fatigue life is improved from 3.067 E4 to 3.326 E6,productivity is improved 18.6 t/h,prediction error is less than 1.3%,meet the design requirement.This method provides data support for the structure and kinematic parameters of cutting head,provides a new method for the optimization design of heavy complicated mechanical equipment.…”
Get full text
Article -
4364
A Novel Capacitance Estimation Method of Modular Multilevel Converters for Motor Drives Using Recurrent Neural Networks with Long Short-Term Memory
Published 2024-11-01“…The results demonstrate significant improvements in estimation accuracy, validated through mean squared error (MSE) metrics and comparative analysis of actual versus estimated capacitance. …”
Get full text
Article -
4365
Maintenance Time Prediction for Predictive Maintenance of Ship Engines
Published 2025-04-01“…Researchers are attempting to equip ships with predictive maintenance technology, which is used proactively in other modes of transportation to predict the maintenance time of machines through data monitoring and analysis. However, due to the nature of ship operation, data collection is difficult, and most studies focus on fault detection, hindering the application of predictive maintenance to ships. …”
Get full text
Article -
4366
Oil Futures Dynamics and Energy Transition: Evidence from Macroeconomic and Energy Market Linkages
Published 2025-07-01“…This study investigates the macroeconomic and energy market determinants of oil futures prices through Granger causality, cointegration analysis, and the error correction model, using daily data. …”
Get full text
Article -
4367
Value Added Tax and Economic Development: Focus on Human Capital Development
Published 2025-03-01“…The collected data is then analyzed using the Johansen Co-integration, Vector Error Correction Model, and Vector Autoregressive analysis technique. …”
Get full text
Article -
4368
EFFECTS OF MACRO-ECONOMIC VARIABLES ON FISHERIES SUPPLY IN NIGERIA (1980-2019)
Published 2022-01-01“…Food and Agricultural Organization database (FAOSTAT) Nigeria Bureau of Statistics (NBS) and Central Bank of Nigeria (CBN) Data were analyzed using mean, percentages coefficient of variation, Augmented Dickey-Fuller statistics, Johansen Co-integration and vector error correction model (VECM) result of statistical analysis revealed that variable of the model was stationary after first difference with co-integration among the variable Descriptive results shows the fluctuation in the agriculture capture fisheries and total fisheries supply over the study period with a mean of 88,890.48 tonnes, 453,278.80 tonnes and 547,043.50 tonnes respectively average annual growth rate of agriculture capture fishery and total fishery production were 502.42 percent, 187.98 percent, and 298.59 percent respectively. …”
Get full text
Article -
4369
Transforming higher education with robotic process automation: enhancing efficiency, innovation, and student-centered learning
Published 2025-05-01“…Inclusion criteria focused on studies published between 2020 and 2024 that addressed RPA applications in education. Data analysis was conducted using thematic synthesis to identify key trends across the selected studies.…”
Get full text
Article -
4370
Analytical Approach to Enhancing Efficiency of Silt Loading Collection in EPA Vacuum Sweep Method Using K-Means Clustering
Published 2025-04-01“…The comparison of clustered versus non-clustered sections across 15 pavement segments showed an error rate of approximately 6%. Properly selecting sampling points ensures more accurate dust concentration data, which is crucial for effective road maintenance and environmental management. …”
Get full text
Article -
4371
HOUSEHOLD DEBT AND INTEREST RATES: A CASE STUDY OF SOUTH AFRICA
Published 2024-12-01“…A quantitative approach was followed by econometric analysis of the data. The study employed the autoregressive distributive lag and vector error correction model to analyse the time-series data for the period from 1990 to 2019. …”
Get full text
Article -
4372
Study of the Criteria for Using Structural Criteria and the Framework of Construction Materials in Virtual Social Networks (Study Sample: IRNA, ISNA, Anatoly and Reuters News Conte...
Published 2023-01-01“…The present study has used the method of quantitative content analysis for written textual data. 800 tweets ending September 1, 2020 (September 11, 1999) means 3200 tweets in total. …”
Get full text
Article -
4373
Application of Sentinel-2A Images for Land Cover Classification Using NDVI in Jember Regency
Published 2024-04-01“…The classification in this study encompassed five classes: water bodies, settlements, dry fields, irrigated paddy fields, and forests. Error analysis was conducted using a confusion matrix with the Overall and Kappa algorithms. …”
Get full text
Article -
4374
-
4375
CONDITIONS OF HARVEST FORMATION AND EFFICIENCY OF OATS VARIETY ‘KONKUR’ CULTIVATION DEPENDING ON AGRO TECHNOLOGIES IN FOREST STEPPE OF POVOLZHIE
Published 2018-05-01“…The paper substantiates appropriateness of research, based on the analysis of data in literature. The meteorological data obtained during the years of research are given. …”
Get full text
Article -
4376
The Impact of Coaching Management on Sustainable Performance in Red Crescent Organization of Sistan and Baluchistan Province
Published 2024-03-01“…The sampling method was stratified random sampling and the sample size of 318 was determined using Cochran's sampling formula with 95% confidence level and 5% error. The data collection tools included standard questionnaires. …”
Get full text
Article -
4377
Shape Preserving Interpolation Using C2 Rational Cubic Spline
Published 2016-01-01“…From all presented numerical results the new C2 rational cubic spline gives very smooth interpolating curves compared to some established rational cubic schemes. An error analysis when the function to be interpolated is ft∈C3t0,tn is also investigated in detail.…”
Get full text
Article -
4378
Design and Construction of IoT-Based Overvoltage and Undervoltage Detection Devices
Published 2025-04-01“…Monitoring data can be accessed via gadgets. So that preventive actions and analysis can be carried out to reduce the risk of losses due to voltage disturbances.…”
Get full text
Article -
4379
BINARY OPTION PRICING USING LATTICE METHOD
Published 2025-01-01“…However, limitations include model assumptions and potential data variability that may affect generalizability. …”
Get full text
Article -
4380
Effect of bin width on variogram model accuracy: a case study of teak tree volume specific to Solomon clone in Tawau, Sabah, Malaysia
Published 2025-04-01“…These models were plotted for comparison, and the root mean square error (RMSE) was calculated. Additionally, cross-validation was performed to assess the predictive accuracy of each model for the unseen data. …”
Get full text
Article