Efficiency evaluation of the microgrid for selection of common bus using copula function-based efficiency curves of the converters

2021 ◽  
Vol 48 ◽  
pp. 101621
Author(s):  
Hira Tahir ◽  
Jae-Suk Lee ◽  
Rae-Young Kim
Keyword(s):  
Copula Function ◽  
Efficiency Evaluation ◽  
Selection Of

scholarly journals Allocation of weights using simultaneous optimization of inputs and outputs contribution in cross-efficiency evaluation of DEA

2018 ◽  
Vol 28 (4) ◽  
pp. 521-538
Author(s):  
Seyed Nasseri ◽  
Hamid Kiaei
Keyword(s):  
Decision Making ◽  
Simultaneous Optimization ◽  
Data Envelopment ◽  
Efficiency Evaluation ◽  
Optimal Solutions ◽  
Specific Criterion ◽  
Use Of Resources ◽  
Multiple Weights ◽  
Decision Making Units ◽  
Selection Of

Cross-efficiency evaluation, an extension of the data envelopment analysis (DEA), has found an appropriate function in ranking decision making units (DMU). However, DEA suffers from a potential aw, that is, the existence of multiple optimal solutions. Different methods have been proposed to obtain a unique solution (based on a specific criterion). In this paper, we refer to Wang's method for ranking DMUs but argue that his way of selecting the weights is not the appropriate one. Namely, in the cross-efficiency evaluation of DMUs, we always search for the weights which use minimum resources to increase the production. Therefore, we suggest that the selection of weights among the multiple weights should be determined by decreasing the contribution of inputs in the use of resources, and increasing the contribution of outputs in the production, which should overtly prevent the selection of zero solutions to the extent possible. To this end, some examples are given to illustrate differences and advantages of our method compared to those usually used.

scholarly journals Effective Efficiency Evaluation for Solar Air Heater using Different Artificial Coarseness

2021 ◽  
Vol 12 (2) ◽  
pp. 2060-2069
Author(s):  
Gaurav Bharadwaj
Keyword(s):  
Solar Air Heater ◽  
Efficiency Evaluation ◽  
Air Heater ◽  
Research Article ◽  
Effective Efficiency ◽  
Selection Of

Effective efficiency evaluation is one of the important parameters in designing and selection of SAH. In this research article author have evaluated the effective efficiency of SAH using different coarseness configuration attached to the underside of collector of SAH used by various research. Correlation developed by various researchers for various coarseness has been used for the evaluation of effective efficiency. Effective efficiency evaluated for each coarseness used in SAH has been compared and suggested that which coarseness is to be used on the basis of comparison.

Selection of Induction Machine Models for Efficiency Evaluation in Electric Vehicles

2013 ◽  
Vol 11 (1) ◽  
pp. 334-340
Author(s):  
Facundo Aguilera ◽  
Pablo Martin de la Barrera ◽  
Cristian Hernan De Angelo
Keyword(s):  
Electric Vehicles ◽  
Induction Machine ◽  
Efficiency Evaluation ◽  
Selection Of

The Mechanism of Monitoring and Incentive on Renewable Energy Building in Eco-City under the Background of New Urbanization

2014 ◽  
Vol 1044-1045 ◽  
pp. 593-596
Author(s):  
Dong Xu Xiong ◽  
Cui Yu Ge
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Evaluation System ◽  
Energy Resources ◽  
Efficiency Evaluation ◽  
Energy Efficiency Evaluation ◽  
Selection Of ◽  
New Urbanization

Renewable energy architecture application is the selection of new urbanization road in China. The paper takes Nanjing Kirin technology ecological area as an example, through the establishment of mechanism of energy efficiency evaluation system on kenewable energy resources building application,puts forward to the countermeasure of energy efficiency evaluation system on kenewable energy resources building application, safeguards the implementation and popularization of the kenewable energy resources building.

Cognitive gadgets and cognitive priors

2019 ◽  
Vol 42 ◽  
Author(s):  
Gian Domenico Iannetti ◽  
Giorgio Vallortigara
Keyword(s):  
Cognitive Neuroscience ◽  
Selection Of

Abstract Some of the foundations of Heyes’ radical reasoning seem to be based on a fractional selection of available evidence. Using an ethological perspective, we argue against Heyes’ rapid dismissal of innate cognitive instincts. Heyes’ use of fMRI studies of literacy to claim that culture assembles pieces of mental technology seems an example of incorrect reverse inferences and overlap theories pervasive in cognitive neuroscience.

Note on Selection of Coordinate Systems for Geodynamics

1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen
Keyword(s):  
Sea Level ◽  
The Other ◽  
Coordinate Systems ◽  
Mean Sea Level ◽  
The Earth ◽  
The One ◽  
Static Systems ◽  
Selection Of

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.

Measurements of the Cape Astrometric Survey of the Southern Hemisphere

1978 ◽  
Vol 48 ◽  
pp. 515-521
Author(s):  
W. Nicholson
Keyword(s):  
Southern Hemisphere ◽  
Automatic Measuring ◽  
Measuring Machine ◽  
Final Selection ◽  
Selection Of

SummaryA routine has been developed for the processing of the 5820 plates of the survey. The plates are measured on the automatic measuring machine, GALAXY, and the measures are subsequently processed by computer, to edit and then refer them to the SAO catalogue. A start has been made on measuring the plates, but the final selection of stars to be made is still a matter for discussion.

Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

1973 ◽  
Vol 31 ◽  
pp. 444-445
Author(s):  
P.J. Killingworth ◽  
M. Warren
Keyword(s):  
Electron Beam ◽  
Organic Materials ◽  
Operating Parameters ◽  
Low Density ◽  
Beam Diameter ◽  
Incident Electron Beam ◽  
Specimen Material ◽  
Voltage Compensation ◽  
Selection Of ◽  
Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

Selection and Preparation of Specific Tissue Regions For Tem Using Large Epoxy-Embedded Blocks

1973 ◽  
Vol 31 ◽  
pp. 324-325 ◽  
Author(s):  
P. M. Lowrie ◽  
W. S. Tyler
Keyword(s):  
Electron Microscopy ◽  
Anatomical Structures ◽  
Ultrastructural Studies ◽  
Transmission Electron ◽  
Microscopic Evaluation ◽  
Embedded Blocks ◽  
Specific Tissue ◽  
Definition Of ◽  
Areas Of Interest ◽  
Selection Of

The importance of examining stained 1 to 2μ plastic sections by light microscopy has long been recognized, both for increased definition of many histologic features and for selection of specimen samples to be used in ultrastructural studies. Selection of specimens with specific orien ation relative to anatomical structures becomes of critical importance in ultrastructural investigations of organs such as the lung. The uantity of blocks necessary to locate special areas of interest by random sampling is large, however, and the method is lacking in precision. Several methods have been described for selection of specific areas for electron microscopy using light microscopic evaluation of paraffin, epoxy-infiltrated, or epoxy-embedded large blocks from which thick sections were cut. Selected areas from these thick sections were subsequently removed and re-embedded or attached to blank precasted blocks and resectioned for transmission electron microscopy (TEM).

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