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1281
Modeling and application of production metering for electric pump wells without downhole pressure measurement devices.
Published 2025-01-01“…To address the issues of low frequency and high costs associated with the current manual production measurement for ESP wells in the Tarim Oilfield, a study was conducted to develop a digital production measurement method for ESP wells. Based on the principle of energy conservation, where the input power of the pump equals the output power of the motor, and incorporating parameters such as surface tubing and casing pressure, motor current, and motor/ pump performance curves, with viscosity correction of the pump performance curve, a corrected power calculation method was proposed. …”
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1282
A Vision-Based Procedure with Subpixel Resolution for Motion Estimation
Published 2025-05-01“…The method’s efficiency and accuracy are assessed here against synthetic shifted patterns, a cantilever beam, and six-story laboratory tests.…”
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1283
Compiling Investment Attractiveness Rating of the Largest Russian Companies Using Minimax Approach
Published 2020-04-01“…In this paper, computational experiments were performed, which used indicators on volume of output and profit of the largest (by volume of output) companies in Russia. …”
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1284
Research on High Voltage Direct Current Power Supply System for Telecommunications
Published 2013-08-01“…The analysis was made for the nominal voltage selection and system design method which was based on energy efficiency prompt and power reliability increasing,these different goals to replace AC power system by DC power system,and these two direct current power supply system was introduced.It was compared that the reliability,the efficiency,the security and the input/output ratio which could prove the scientifically and large-scale application feasibility of 240V direct current power supply system.…”
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1285
Dual‐state and self‐oscillating wireless charging system topology for direct‐drive battery
Published 2024-11-01“…Both computational simulation and experimental validation have confirmed the feasibility of the proposed method. Compared with conventional WCS topology with compensation, the proposed method improves the system efficiency by 3% and the receiver efficiency by 5%, which is more suitable for practical applications where compact and light‐weight receiver is required.…”
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1286
Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter
Published 2017-01-01“…Single-phase power electronic traction transformer (PETT) is the power device to realize higher efficiency and reduction of weight in railway traction system, and parallel operated full-bridge isolated DC-DC converters are an important part of single-phase PETT to realize a stable DC-voltage output. …”
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1287
Obstacle Avoidance Control of Autonomous Undersea Vehicle Based on DVFH+ in Ocean Current Environment
Published 2025-02-01“…By incorporating AUV dynamics parameters to limit the expected heading output, this method reduced abrupt changes in the expected algorithm output, thereby improving AUV’s tracking performance. …”
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1288
A Closed-Form Solution for Harvesting Energy from the High-Order Sandwich Beam Subjected to Dynamic Loading
Published 2025-06-01“…Numerical examples are provided to evaluate the generated voltage and energy harvesting efficiency. The results demonstrate the strong potential for energy harvesting from sandwich beam vibrations and elucidate the influence of impact loading conditions, distributed load amplitude, and the geometric dimensions of the beam on the harvested output.…”
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1289
Optimal Dispatch Strategy of Power and Electricity Balance Based on Multi-Energy Complementation
Published 2024-01-01“…Finally, case studies are performed to verify the effectiveness of the proposed method on the modified IEEE-RTS 1979 system model. …”
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1290
Study on Dynamic Characteristics of Parabolic Trough Solar Collector Circuit
Published 2021-12-01“…The results show that the regulation strategy can maintain the outlet temperature of the loop in the operation time and the thermal efficiency close to the ideal value. The study provides a new method for the construction of dynamic model of the parabolic trough solar collector, and the results can provide reference for the dynamic operation of the parabolic trough solar field.…”
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1291
Joint User-Centric Clustering and Pilot Allocation for Scalable Cell-Free Massive MIMO System
Published 2024-12-01“…The result showed that with 10 available orthogonal pilots, the scalable pilot allocation method achieves more than twice the 95%-likely spectral efficiency compared to the graph-coloring method. …”
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1292
Gaseous molecules-mediated electrochemical exfoliation of halogenated MXenes and its boosting in wear-resisting tribovoltaic devices
Published 2025-05-01“…Molten salts etching route further achieves their controllable surface chemistry. However, the method encounters challenges in achieving few-layered structures due to more complex delamination behaviors. …”
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1293
A Deep Learning Framework for Parameter Estimation in 1D Marine Ecosystem Model
Published 2025-06-01“…In this study, we proposed a deep learning-based approach for parameter estimation in numerical models, utilizing deep neural networks to capture the complex nonlinear relationships between numerical model input parameters and output variables. A one-dimensional marine ecosystem model is employed as a case study to evaluate the effectiveness of the proposed method. …”
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1294
Grape Leaf Diseases Identification System Using Convolutional Neural Networks and LoRa Technology
Published 2022-01-01“…In this study, we use the Grad-CAM method to visualize the output layer judgments of the CNN. …”
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1295
Three-stage hybrid spiking neural networks fine-tuning for speech enhancement
Published 2025-04-01“…Recently, spiking neural networks (SNNs) have emerged as a promising low-power alternative to ANNs, leveraging their inherent sparsity to enable efficient computation while maintaining performance.MethodWhile SNNs offer improved energy efficiency, they are generally more challenging to train compared to ANNs. …”
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1296
Prediction and Analysis of metabolic mechanism for regional water system from the perspective of quantity-quality collaborative control——A case study of Zhejiang Province, China...
Published 2025-02-01“…In detail, the prediction of water metabolism network in future scenario is established based on the Grey Model-Biproportional Scaling Method (GM-RAS) and the Input-Output Analysis (IOA). …”
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1297
Transient Characteristics Analysis of He-Xe Cooled Space Reactor Coupled with Brayton Cycle Nuclear Power System
Published 2025-05-01“…In contrast, delayed intervention requires stronger negative reactivity, leading to a decrease in core temperature and a reduction in thermal efficiency. During TAC shaft speed reduction, reactor heat output remains proportional to system load. …”
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1298
Wisdom of the crowd: evidence for density-dependent species fitness in Hyptis suaveolens (L.) Poit.
Published 2025-05-01“…The present study examines the effects of varied population densities of H. suaveolens on its vegetative trait performance, reproductive output, and density-dependent plant population regulations. …”
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1299
IMPACT OF PYRUVATE CONCENTRATION IN BLOOD ON THE DEVELOPMENT OF POST-PERFUSION CARDIAC FAILURE IN MYOCARDIAL REVASCULIZATION SURGERY WITH CARDIOPULMONARY BYPASS
Published 2018-01-01“…During the surgery the following rates of hemodynamic profile were registered (cardiac index, systolic output index, medium arterial tension, index of peripheral resistance and pulmonary vessels resistance, index of systolic output of the left and right ventricles, pulmonary capillary wedge pressure), oxygen transportation, consumption and extraction co-efficient, arteriovenous oxygen difference. …”
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1300
ASYMMETRIC SLOT LINES FOR CREATING MILLIMETER-WAVE SEMICONDUCTOR COMPONENTS
Published 2025-06-01“…Extended-geometry active components (IMPATT diodes) also serve the purpose. These methods enabled us to increase the output power of the microwave devices by 40 to 50%, the temperature of the p-n junction of the active element therewith was not increasing. …”
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