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Uso de um esquema implícito e de splines para a simulação numérica do processo de resfriamento de frutas esféricas Use of an implicit scheme and splines for the numerical simulatio...
Published 2005-03-01“…Although, the value of the convective heat transfer coefficient was significantly different; this variation shows how this coefficient is sensible to the assumptions of the cooling process and that this research must continue in order to determine its effective value.…”
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4542
Hybrid Technology of Water Purification Based on the Method of Dosing Sorption Material for Water Treatment Systems of Thermal Power Plants and Water Supply
Published 2024-07-01“…Anthropogenic load significantly reduc-es the efficiency of purification according to the current technology, therefore, additional post-treatment methods must be used to obtain purified water of the required quality. …”
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4543
Using TOPSIS Method for Solving Multi-Objective Optimization of a Two-stage Helical Gearbox with First Stage Double Gear-sets
Published 2024-12-01“…Furthermore, two distinct goals were analyzed: the lowest gearbox mass and the highest gearbox efficiency. Additionally, the MOOP is carried out in two steps: phase 1 solves the single-objective optimization problem to close the gap between variable levels, and phase 2 solves the MOOP to determine the optimal primary design factors. …”
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Machine Learning-Based Backpressure Unstart Prediction and Warning Method for Combined Cycle Engine Hypersonic Inlet-Oriented Wide Speed Range
Published 2024-01-01“…Finally, the proposed method and prediction models are validated by wind tunnel experimental data.…”
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4547
A New Method for 3D Dental Records Related to Orthopedic Treatments: The Hemimaxillary Plane Reference System and Its Clinical Implications
Published 2024-11-01“…For RME to allow clinical improvement, molar rotation and intermolar angles at T1 should be less than the difference between the respective angles at T0 and the orthopedic expansion angle. This method provides a reproducible, radiation-efficient method to assess maxillary changes, enhancing treatment precision in orthodontics.…”
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4548
Performance analysis of permanent magnet synchronous motor based on transfer function model using PID controller tuned by Ziegler-Nichols method
Published 2025-06-01“…Proportional Integral and Derivative (PID) controller tuning is one of the most important factors in control systems engineering for achieving an efficient and desired system performance. There are many tuning methods available but in this article, Ziegler-Nichols (ZN) tuning method is proposed to determine the gain values (Kp, Ki and Kd) of PID controller based on system behaviour. …”
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A Fast, Simple, and Approximate Method for a Minimal Unit Cell Design of Glide-Symmetric Double-Corrugated Parallel-Plate Waveguides
Published 2025-05-01“…We test the applicability of the AFGSM method on a variety of numerical examples to determine the passband/stopband regions of single and GS-DCPPWs before applying the design procedure. …”
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A Continuous Space Path Planning Method for Unmanned Aerial Vehicle Based on Particle Swarm Optimization-Enhanced Deep Q-Network
Published 2025-02-01“…Then, the two candidate solutions are combined using a weighted vector method to determine a direction that balances global search and policy learning. …”
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4551
Assessment of Future Flood Loss in the Daqing River Basin Based on Flood Loss Rate Function
Published 2025-01-01“…To identify flood-prone areas in the Daqing River Basin and classify flood risk levels, the Spearman's rank correlation coefficient and the random forest method were employed to analyze the correlation and importance between flood loss rates and influencing factors. …”
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Method validation of an inductively coupled plasma mass spectrometry (ICP-MS) assay for the analysis of magnesium, copper and zinc in red blood cells
Published 2024-11-01“…The resulting diluted specimen was analyzed using inductively coupled plasma mass spectrometry (ICP-MS) to quantitatively determine the levels of Mg, Cu, and Zn. The method underwent validation for accuracy, precision, method comparison, linearity, analytical sensitivity, and carryover. …”
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4553
A Novel Method for Aging Life Evaluation of O-Rings Based on the Sealing Performance Degradation Model and the Artificial Neural Network Model
Published 2025-06-01“…The ANN model achieved a root mean square error (RMSE) of 1.8264, a coefficient of determination (R<sup>2</sup>) of 0.9999, and a mean absolute percentage error (MAPE) of 8.05%, demonstrating high prediction accuracy and generalization capability. …”
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Finding the design collapse capacity of a multi-story RC frame in near-fault based on the collapse risk by using the ratio method
Published 2023-06-01“…In this research, the ratio method is presented to determine the design collapse capacity of structures based on the risk value of 1% in 50 years as well as the site hazard stemming from the integration scenario for near-fault. …”
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Analysis and Forecast of the Demographic Situation in Kazakhstan
Published 2022-07-01“…Using the method of extrapolation, the coefficients of fertility, mortality, natural, absolute, average population growth, and migration coefficient were determined. …”
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Comparative Study on Molecular Weight of Konjac Glucomannan by Gel Permeation Chromatography-Laser Light Scattering-Refractive Index and Laser Light-Scattering Methods
Published 2013-01-01“…The results show that the determination results of molecular weight of KGM are similar by two method, the molecular weight of KGM is 2.476×105 g/mol by online method measured, and it is 2.508×105 g/mol by single method measured, compared with only 1.3% difference between the two methods. …”
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Simple model and integral method for simulating the growth of the borided layer FeB/Fe2B on the AISI H13 steel
Published 2023-12-01“…These two diffusion models did not consider the effect of boride incubation times of the total boride layer (FeB + Fe2B). The diffusion coefficients of boron in the FeB and Fe2B layers were estimated using the proposed integral method-based model. …”
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HPLC-UV method development and validation for anticancer drug sorafenib and the co-prescribed drug dexamethasone: application to pharmacokinetic evaluation of sorafenib nanoformula...
Published 2025-04-01“…A high-performance liquid chromatography (HPLC) method was developed for the simultaneous determination of sorafenib with a commonly co-prescribed drug, dexamethasone, using meloxicam as an internal standard. …”
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