Results 21 to 30 of about 9,271,499 (307)

Assessing the Efficiency and CO2 Reduction Performance of China’s Regional Wind Power Industry Using an Epsilon-Based Measure Model

open access: yesFrontiers in Energy Research, 2021
China has become the largest wind power installation market in the world, and on such a large scale its wind power industry contributes to the sustainability of electricity generation and reduction of carbon emissions, yet has problems such as wind ...
Ze Tian   +3 more
doaj   +1 more source

New Method for Efficiency Evaluation of Digital Technologies in Agricultural Sector [PDF]

open access: yesТехника и технология пищевых производств, 2019
The paper features digital technologies in satellite farming and introduces a quantitative methodology to evaluate various types of their effectiveness.
Rada A., Fedulova E., Kosinsky P.
doaj   +1 more source

Investment merger efficiency evaluation of energy enterprises: From a perspective of energy internet

open access: yesFrontiers in Environmental Science, 2022
Evaluating the efficiency of energy enterprises’ investment merger in the energy Internet sector can be a visual measure of the effectiveness of their investment merger in this sector.
Yirui Deng   +5 more
doaj   +1 more source

Sample Efficient Model Evaluation

open access: yesCoRR, 2021
Labelling data is a major practical bottleneck in training and testing classifiers. Given a collection of unlabelled data points, we address how to select which subset to label to best estimate test metrics such as accuracy, $F_1$ score or micro/macro $F_1$.
Emine Yilmaz   +4 more
openaire   +2 more sources

A comparative study of satellite altimetry-based and DEM-based methods for estimating lake water volume changes

open access: yesWater Science and Technology
This study compared two different methods, the satellite altimetry-based and DEM (digital elevation model)-based, for estimating lake water volume changes.
Haotian Li   +4 more
doaj   +1 more source

Exploratory Research to Improve Energy-Efficiency of a Ground-Coupled Heat Pump Utilizing an Automatic Control Device of Circulation Pump Speed

open access: yesEnergies, 2020
Ground-coupled heat pumps (GCHPs) are an efficient thermal energy production system that can satisfy the gap between heating and air-conditioning. Be that as it may, exploratory research on GCHPs is still lacking.
Ioan Sarbu, Calin Sebarchievici
doaj   +1 more source

A Hybrid PSO-GWO-BP Predictive Model for Demand-Driven Scheduling and Energy-Efficient Operation of Building Secondary Water Supply Systems

open access: yesBuildings
Accurate forecasting of water demand enables optimized peak-load management, alleviating pressure during high-demand periods and improving the operational efficiency of urban secondary water supply systems—a critical component in the energy-efficient and
Shu-Guang Zhu   +6 more
doaj   +1 more source

Towards a conceptualization of a social efficiency notion in management sciences

open access: yesEkonomia i Prawo, 2020
Motivation: In the past, economic efficiency was a key criterion for assessing different types of activities undertaken by various organizations. It has been noticed that acquiring economic efficiency cannot be the only goal, and efficiency notion has ...
Tadeusz A. Grzeszczyk   +1 more
doaj   +1 more source

Efficiently Degrading RhB Using Bimetallic Co3O4/ZnO Oxides: Ultra-Fast and Persistent Activation of Permonosulfate

open access: yesMolecules
To address the issues of poor Co2+ regeneration and limited interfacial electron transfer in heterogeneous catalytic systems, this study proposes the synthesis of highly efficient and stable Co3O4/ZnO composites through the pyrolysis–oxidation reaction ...
Bai Sun   +8 more
doaj   +1 more source

Selecting an evaluation consultant or team [PDF]

open access: yes, 2012
French version available in IDRC Digital Library: Choix de l’évaluateur ou de l’équipe d'évaluationRegardless of the evaluation topic and intended use, the most important general characteristics to consider when selecting an external evaluator are ...
IDRC. Evaluation Unit
core   +1 more source

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