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1801
Examination and Analysis of Seasonal Energy Efficiency Ratio of Room Air Conditioner With Two Compressors
Published 2004-01-01“…Enthalpy-difference method has been utilized in this paper to test and analyze Seasonal Energy Efficiency Ratio (SEER) of normal model air conditioner and two-compressor model air conditioner with same refrigeration ability. …”
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1802
Redundant-Path Scheme for Efficient Interworking between a Wireless Sensor Network and the Internet
Published 2013-07-01“…In this study, we propose a redundant-path scheme based on a multichannel WSN for an efficient interworking among the heterogeneous networks. …”
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1803
A Comparative Analysis of the Efficiency of Thermal and Electric Energy Production in the District Heating Systems
Published 2016-12-01“…In the base of the technical and economic indicators of the exploitation, an analysis of the efficiency of operation of Combined Heat and Power stations (CHP) in the district heating system at various loads during the year have been provided. …”
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1804
User-centric energy efficiency fairness in backscatter-assisted wireless powered communication network
Published 2020-07-01“…In order to address the unfair user-centric energy efficiency (EE) problem caused by channel difference in the backscatter-assisted wireless powered communication network,a resource allocation scheme was proposed.Firstly,a mixed integer nonconvex fractional programming problem was formulated to maximize the minimum user-centric EE,subject to the quality of service and energy-causality constraints.Based on the generalized fractional programming theory,the original problem was transformed into a mixed integer nonconvex subtraction problem.With the aid of the slack variable,the proof by contradiction,the auxiliary variable and the mixed integer nonconvex subtraction problem were further transformed into an equivalent convex problem.Finally,an iterative algorithm was proposed to obtain the optimal solutions.Computer simulations validated the quick convergence of the proposed iterative algorithm,and that the developed resource allocation scheme efficiently guarantees the fairness among users in terms of EE.…”
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1805
Efficient preconditioning strategies for accelerating GMRES in block-structured nonlinear systems for image deblurring.
Published 2025-01-01“…We propose an efficient preconditioning strategy to accelerate the convergence of Krylov subspace methods, specifically for solving complex nonlinear systems with a block five-by-five structure, commonly found in cell-centered finite difference discretizations for image deblurring using mean curvature techniques. …”
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1806
Accurate and Efficient Computations of the Greeks for Options Near Expiry Using the Black-Scholes Equations
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1807
An Efficient Optimization Algorithm for Measurement Matrix Based on SVD and Improved Nesterov Accelerated Gradient
Published 2025-06-01“…In this paper the problem of efficiently designing the measurement matrix is addressed. …”
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1808
Accounting for Efficiency: Productivity Assessment of Merged Hospitals in Portugal Using DEA–Malmquist Analysis
Published 2025-05-01“…These findings partially support the assumptions of New Public Management and Efficiency Theory concerning efficiency improvements through hospital mergers in the public sector.…”
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1809
Analysis of Production Efficiency: Comparison of Power Conversion Using Diode and Thyristor in Circular Saw
Published 2025-07-01“…Statistical analysis using Welch’s t-test indicated no significant difference in energy efficiency between the two methods. …”
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1810
Evaluating large language models: a systematic review of efficiency, applications, and future directions
Published 2025-05-01“…Finally, we conclude with insights and future directions for advancing the efficiency and applicability of large language models.…”
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1811
Optimal strategy for maximizing energy efficiency of 4G and 5G coexistence network
Published 2022-09-01“…The energy efficiency of wireless networks has gradually become an important indicator for evaluating network performance.It’s very important to improve the energy efficiency of the coexisting 4G and 5G networks as there are differences in energy efficiency of them.Firstly, the energy consumption composition of base station was analyzed, energy consumption models for 4G and 5G base stations through measured data were established, and then its energy efficiency was evaluated through simulations.The results show that 4G and 5G have their own optimal energy-efficiency areas separated by the critical point of 500 Mbit/s, above which the 5G energy efficiency is better.When dual networks operate simultaneously under the proposed-solution where only 4G is used when the throughput is less than 500 Mbit/s and only 5G is used otherwise, the power consumption of a single station can be reduced by 53.4% and the energy efficiency can be improved by 116.4%.…”
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1812
Low-Cost Air Gap Metasurface Structure for High Absorption Efficiency Energy Harvesting
Published 2019-01-01“…Differently from the previously presented structures which require the use of thicker and low-loss (and for this reason high cost) dielectric substrates, the presented work employs a dual-layer structure with a thin low-loss material and an air gap; they allow for the design of very high absorption efficiency metamaterial-based surfaces, with noticeably reduced costs. …”
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1813
CHARACTERISTICS AND EFFICIENCY OF TREATMENT IN TUBERCULOSIS PATIENTS DEPENDING ON THE ХPERT MTB/RIF RESULTS
Published 2017-10-01“…The goal of the study: to evaluate treatment efficiency of pulmonary tuberculosis patients resistant to rifampicin when treatment was prescribed based on the results of Xpert MBT/RIF. …”
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1814
Level and Drivers of China’s Construction Industry Energy Efficiency under Carbon Dioxide Emissions
Published 2022-01-01“…Taking the carbon dioxide emissions of energy utilization in construction industry (CI) as an unwanted output, this study builds an index system for construction industry energy efficiency (CIEE) under carbon dioxide emissions, adopts the super-SBM to assess the CI energy efficiencies (CIEEs) of 30 Chinese provincial administrative regions (PARs) in 2005–2018, and further examines the influencing factors of the CIEEs with the panel data model. …”
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1815
Impact of using metallized iron ore pellets to increase the efficiency of electric arc furnace
Published 2015-09-01“…It is found that the microstructure invariance of fluxed pellets including the bonded phase composition is determined by the level of fluxing and the difference of the iron valent states. Improvement in the efficiency of IMP melting is achieved by feeding pellets with improved physicochemical and technological properties, as well as supplementary materials, into the slag-metal bath through the axial passages of the electrodes.…”
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1816
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1817
Allocating carbon emission responsibilities in the Chinese civil aviation industry considering equity and efficiency
Published 2025-06-01“…This paper proposes an allocation scheme for carbon emissions, considering the differences in the emission reduction contributions and capacities of China's five major airlines, while balancing equity and efficiency. …”
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1818
Assessment of environmental efficiency in achieving sustainable development goals of the constituent entities of the Russian Federation
Published 2025-07-01“…Economic, mathematical and statistical methods were used, including correlation and regression analysis and methods for assessing the manifestation of the long-term positive effect of decoupling.It has been established that in the districts studied, as a whole, in the long-term period, there is an increase in environmental efficiency of economies in terms of emissions into the atmosphere, polluted wastewater discharge and fresh water usage, but there may be significant interregional differences and in some cases a decrease in environmental efficiency may be observed. …”
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1819
Heterologous demineralised bone matrix is efficient for the repair of critical-sized rat calvarial defects
Published 2020-09-01“…In our experimental setting, bone autograft was the most efficient in bone repair. Heterologous DBM and comparator product were equally efficient in filling the defect and did not show any statistically significant differences regarding any of the parameters. …”
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1820
Efficiency of pantraps for monitoring bees diversity in Brazilian acerola orchards: the role of color diversity
Published 2025-03-01“…Regarding the Centridini tribe, pantraps were efficient in collecting species, but not individuals. …”
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