Results 151 to 160 of about 26,843 (303)

Network data envelopment analysis models and applications

open access: yes, 2013
El análisis por envoltura de datos (DEA) es una metodología no paramétrica que evalúa la eficiencia de unidades con capacidad de decisión (DMUs), teniendo en cuenta únicamente información relativa a las entradas y salidas de los procedimientos de transformación o producción que realizan.
openaire   +2 more sources

Network Data Envelopment Analysis with Intermediate Products Structure [PDF]

open access: yesProceedings of the Advances in Materials, Machinery, Electrical Engineering (AMMEE 2017), 2017
Xiaopeng Li   +3 more
openaire   +1 more source

Path‐Decoupled Cation‐Eutaxy III–V van der Waals Memristive Semiconductors for Mitigating the Neuromorphic Accuracy‐Energy Trade‐off

open access: yesAdvanced Materials, EarlyView.
Path‐decoupled III–V van der Waals memtransistors spatially separate ionic and electronic transport to overcome the conventional trade‐off between accuracy and energy in neuromorphic hardware. Mobile K+ ions in the vdW gaps set a wide conductance window, Gmax/Gmin, while gate‐tunable hole conduction lowers programming energy, enabling reliable ...
Jihong Bae   +13 more
wiley   +1 more source

Efficiency of the Portuguese metros. is it different from other European metros? [PDF]

open access: yes
This research analyses the performance of Portuguese metros in the European context. By means of two non-parametric benchmarking techniques, respectively performance indicators and data envelopment analysis, we compute the efficiency of 37 European ...
Costa, Álvaro   +3 more
core   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

open access: yesAdvanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang   +4 more
wiley   +1 more source

Overcoming Data Limitations in Nonparametric Benchmarking: Applying PCA-DEA to Natural Gas Transmission [PDF]

open access: yes
This paper provides an empirical demonstration for a practical approach of efficiency evaluation against the background of limited data availability in some regulated industries.
Anne Neumann   +2 more
core  

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

A Network data envelopment analysis model for supply chain performance evaluation: real case of Iranian pharmaceutical industry

open access: yesInternational Journal of Industrial Engineering and Production Research, 2014
Having a comprehensive evaluation model with reliable data is useful to improve performance of supply chain. In this paper, according to the nature of supply chain, a model is presented that able to evaluate the performance of the supply chain by a ...
Laya Olfat   +3 more
doaj  

Valuing Environmental Factors in Cost-Benefit Analysis Using Data Envelopment Analysis [PDF]

open access: yes
Environmental cost-benefit analysis (ECBA) refers to social evaluation of investment projects and policies that involve significant environmental impacts.
Timo Kuosmanen
core  

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