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METHOD IMPROVEMENT FOR DETERMINING THE TECHNICAL LEVEL OF CIVIL AIRCRAFT
Published 2017-01-01“…Aircraft are high-tech engineering products which are characterized by a wide range of properties including the two most important groups that respectively characterize the efficiency and technical level.Improving the aircraft efficiency is an essential factor for air transport development, but the efficiency can not be fully describe the technical system, especially in forecasting and new technology requirements development. …”
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662
Performance enhancement scheme for IRS-assisted cognitive backscatter communication network
Published 2021-12-01“…In order to achieve the self-sustainable cognitive radio network (CRN) and improve its communication efficiency, an efficient multi-mode switching scheme assisted by the intelligent reflecting surface (IRS) for the overlay scenario was proposed.In particular, the secondary transmitter (ST) could work in either backscatter communication (BackCom) mode or harvest-then-transmit (HTT) mode.The IRS was exploited to enhance the energy harvesting, information backscattering, and information transmission efficiencies at the ST.To maximize the system sum-rate, an optimization problem about the phase shirts at the IRS, time scheduling, and power allocation was formulated.Since the formulated problem was non-convex, an efficient block coordinate descent (BCD) based algorithm was proposed to achieve the sub-optimal solution.Simulation results confirm that the proposed scheme can achieve up to 200% sum-rate gain over the benchmark schemes.…”
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663
A highly efficient hybrid fiber optic laser using a cesium atom vapor cell as an optical gain medium
Published 2025-03-01“…The laser cavity consists of a macroscopic concave reflector (> 99% reflectivity) and a 4% Fresnel-reflecting facet of a single mode fiber (SMF). …”
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664
Hybrid regression method to predict forest variables from Earth observation data in boreal forests
Published 2025-12-01“…Machine learning-based approaches offer flexibility but rely on extensive training data, which can be generated with reflectance models. This study introduces a hybrid regression method, integrating the forest reflectance and transmittance model FRT with a random forest regressor. …”
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665
A practical and efficient model for benthic habitat parameters retrieval in optically shallow waters from four-band multispectral imagery
Published 2025-05-01“…Finally, using the monthly mean water column reflectance dataset MMCRwλ constructed from 23-year MODIS data, Rbλ, Chl and SDD can be efficiently derived. …”
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666
TECHNIQUE OF MONITORING ORGANIZATION OF STATISTICS OF PROJECTS EFFICIENCY ON REALIZATION OF THE MAIN AREAS OF THE GOVERNMENT ACTIVITY ON THE SPHERE OF REPRODUCTION AND USE OF NATUR...
Published 2016-08-01“…The article suggests some methodological approaches to the organization of supervision of the statistics characterizing the sphere of reproduction and use of natural resources, which is necessary for an efficiency assessment of realization of the main actions in this sphere, reflected in the state programs, which executive is the Ministry of Natural Resources and Environmental Protection of the Russian Federation, and also in the Report on results and the main activities of the ministry and projects on realization of the Main activities of the Government.…”
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667
Main control factors affecting mechanical oil recovery efficiency in complex blocks identified using the improved k-means algorithm.
Published 2021-01-01“…This cannot reflect the obvious difference in the influence of several factors in the block on the efficiency. …”
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668
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Design and experimental evaluation of a reconfigurable intelligent surface for wireless applications
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670
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Investigating Evaluation Indicators of Intelligent Vehicle Sharing Based on Operation Efficiency: A Case Study in Xiong’an New Area, China
Published 2022-01-01“…This paper aims at providing a more scientific and quantitative method to explore the shared travel traffic mode and evaluating efficiency with data mining technology. Based on the analysis of the evaluation index system of the existing intelligent shared mobility, this paper firstly points out some issues in reflecting the operation efficiency of a specific shared mobility service. …”
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672
A Novel MetaSoft Tree-Cognitive Set Model for Evaluating Criminal Litigation Efficiency under Artificial Intelligence Ecosystems
Published 2025-06-01“…Artificial Intelligence (AI) is transforming judicial systems by offering tools that enhance legal decision-making, yet measuring the efficiency of criminal litigation processes within these evolving digital ecosystems remains a complex task. …”
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673
Research on the Dynamic Defensive Efficiency of Traditional Military Settlements in the Ming Dynasty: A Case Study of Ningbo Coastal Defense, China
Published 2025-03-01“…The results of the study show that the changes in defensive efficiency in the four periods reflected the four stages of coastal defense construction in Ningbo during the Ming Dynasty: the preliminary construction period, the full construction period after repeated Wokou infestations, the basic completion period, and the period when Wokou encroachments were reduced and the point of attack was relocated to the south. …”
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674
Soil-dwelling Bacillus velezensis SS-38.4 efficiently colonizes sugar beet phyllosphere and controls phytopathogenic Pseudomonas syringae
Published 2025-08-01“…By displaying competitive behavior beyond its original ecological niche, B. velezensis SS-38.4 has exhibited its resilience and versatility in a challenging environment, reflecting its suitability for implementation as a biocontrol agent for efficient and comprehensive crop protection.…”
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675
Eco-friendly fabrication of copper oxide nanoparticles using peel extract of Citrus aurantium for the efficient degradation of methylene blue dye
Published 2024-11-01“…The synthesized CuO and CuO-OP NPs exhibited excellent photocatalytic efficiencies for methylene blue dye under UV irradiation, reaching 95.34 and 97.5%, respectively, under optimal conditions; the initial dye concentration was 100 mg/L, the pH was 10, the catalyst dosage was 1 g/L, and the contact time was 120 min. …”
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676
A cross-efficiency aggregation method based on fairness perspective(基于公平视角的交叉效率集结方法)
Published 2024-09-01“…The lower and upper limits of cross-efficiency of regret interval are synthesized by introducing a parameter reflecting the psychological preference of decision-makers. …”
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677
Enhancing water scarcity resilience in Egypt through machine learning-driven phenological crop mapping and water use efficiency analysis
Published 2025-07-01“…However, the sector faces mounting pressure from water scarcity, as it depends almost entirely on the Nile for irrigation, making it necessary to map major crops for assessing Water Use Efficiency (WUE) and informing agricultural planning. …”
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678
Açaí Waste Biochar Combined with Phosphorus Fertiliser and Phosphorus Use Efficiency in Cowpea (<i>Vigna unguiculata</i> (L.) Walp)
Published 2025-01-01“…Higher doses of biochar and P increased the soil’s available P content by up to 2.3 times, reflected in the P content of cowpea dry biomass. However, this increase in biochar and P levels led to a maximum increase of 7.7% in agronomic phosphorus efficiency (APE) in cowpea in the short term. …”
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679
Single-variant genome-wide association study and regional heritability mapping of protein efficiency and performance traits in Large White pigs
Published 2025-08-01“…Abstract Background Improvement of protein efficiency (PE) is a key factor for a sustainable pig production, as nitrogen excretion contributes substantially to environmental pollution. …”
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680