scholarly journals Patterning Metal Grids for GaAs Solar Cells with Cracked Film Lithography: Quantifying the Cost/Performance Tradeoff

2020 ◽  
Vol 12 (37) ◽  
pp. 41471-41476
Author(s):  
Christopher P. Muzzillo ◽  
Evan Wong ◽  
Lorelle M. Mansfield ◽  
John Simon ◽  
Aaron J. Ptak
Keyword(s):  
Solar Cells ◽  
Cost Performance ◽  
The Cost ◽  
Performance Tradeoff

Organizational Response: The Cost Performance Tradeoff

1997 ◽  
Vol 43 (2) ◽  
pp. 217-234 ◽  
Author(s):  
Zhiang Lin ◽  
Kathleen M. Carley
Keyword(s):  
Organizational Response ◽  
Cost Performance ◽  
The Cost ◽  
Performance Tradeoff

Cost Performance Tradeoff Study of Wind Systems: Grid-Scale Storage

2016 ◽  
Author(s):  
Navid Goudarzi ◽  
John Rudesill ◽  
Alex Pavlak
Keyword(s):  
Natural Gas ◽  
Storage Capacity ◽  
Cost Savings ◽  
Cost Performance ◽  
Cost Of Energy ◽  
Gas System ◽  
The Cost ◽  
Capacity Cost ◽  
Natural Gas System ◽  
Performance Tradeoff

Variability and uncertainty are the primary challenges for power generation from intermittent, non-dispatchable energy sources. This stochastic behavior could significantly increase the cost of energy. An earlier work developed an interdisciplinary economic model using three-year (2011–2013) wind/load data from two different sites, Pennsylvania New Jersey Maryland Interconnection LLC (PJM) in USA and EirGrid in Ireland. Results showed a wind plus natural gas system can reduce emission as much as 50% below that of an all-natural gas system, with only a slight increase in system cost. Energy storage can be a key element in obtaining energy and cost savings, together with providing availability, reliability, and security of energy supply to consumers. In this paper, grid-scale storage parameters variations (storage capacity, cost, and efficiency) are explored to obtain levelized cost trends for wind systems with storage.

scholarly journals Optimizing the Cost-Performance Tradeoff for Coflows Across Geo-Distributed Datacenters

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 24488-24497 ◽  
Author(s):  
Xinping Xu ◽  
Wenxin Li ◽  
Keqiu Li ◽  
Heng Qi ◽  
Yingwei Jin
Keyword(s):  
Cost Performance ◽  
The Cost ◽  
Performance Tradeoff

scholarly journals HIGH PERFORMANCE FLEXIBLE NANOPARTICLES BASED ORGANIC ELECTRONICS

2019 ◽  
Vol 2019 (02) ◽  
pp. 99-106
Author(s):  
Nirmal D.
Keyword(s):  
Solar Cells ◽  
Organic Semiconductors ◽  
High Performance ◽  
Cost Performance ◽  
Performance Improvements ◽  
Wide Range ◽  
Efficiency Performance ◽  
Low Efficiency ◽  
The Cost ◽  
Nanoparticle Additives

The attributes of the organic materials have made them more prominent in a wide range of applications engaged for large or small purpose such as the solar cells or the displays in the mobile devices. The solar cells developed using the organic semiconductors are more advantageous due to their flexibility and their easy installation. Despite the versatile nature of the and easy implementation the organic semiconductors still suffers from low efficiency in term of cost, performance and size. The proposed method incorporates the nanomaterials in the organic solar cell to improvise efficiency (performance) and to minimize the cost as well as the size of the solar cells. The proposed method replaces the semiconductor that is organic by incorporating the organic semiconductors with the nanoparticle additives to have a perfect blending in solution to improve the crystallizations of the semiconductor, and the uniformity thus improvising the power conversion efficiency in the solar cells and minimizing the size and the cost . The result acquired through evaluation proves the performance improvements to 19% form 3.5% in the solar cells.

The meta-technology cost ratio: An indicator for judging the cost performance of CO2 reduction

2013 ◽  
Vol 35 ◽  
pp. 1-9 ◽  
Author(s):  
Pei-Ing Wu ◽  
Chai Tzu Chen ◽  
Je-Liang Liou
Keyword(s):  
Co2 Reduction ◽  
Cost Ratio ◽  
Cost Performance ◽  
The Cost

scholarly journals Roughing Milling with Ceramic Tools in Comparison with Sintered Carbide on Nickel-Based Alloys

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 734
Author(s):  
Pablo Fernández-Lucio ◽  
Octavio Pereira Neto ◽  
Gaizka Gómez-Escudero ◽  
Francisco Javier Amigo Fuertes ◽  
Asier Fernández Valdivielso ◽  
...  
Keyword(s):  
Cutting Speed ◽  
High Volume ◽  
Cemented Carbide ◽  
Performance Ratio ◽  
Cost Performance ◽  
Ceramic Tools ◽  
The Cost ◽  
Engine Components ◽  
Coated Carbide ◽  
Milling Tools

Productivity in the manufacture of aircrafts components, especially engine components, must increase along with more sustainable conditions. Regarding machining, a solution is proposed to increase the cutting speed, but engines are made with very difficult-to-cut alloys. In this work, a comparison between two cutting tool materials, namely (a) cemented carbide and (b) SiAlON ceramics, for milling rough operations in Inconel® 718 in aged condition was carried out. Furthermore, both the influence of coatings in cemented carbide milling tools and the cutting speed in the ceramic tools were analysed. All tools were tested until the end of their useful life. The cost performance ratio was used to compare the productivity of the tested tools. Despite the results showing higher durability of the coated carbide tool, the ceramic tools presented a better behavior in terms of productivity at higher speed. Therefore, ceramic tools should be used for higher productivity demands, while coated carbide tools for low speed-high volume material removal.

Inorganic-Organic Hybrid Nanocomposites for Photovoltaic Applications

2012 ◽  
Vol 571 ◽  
pp. 120-124
Author(s):  
Liang Min Zhang
Keyword(s):  
Solar Cells ◽  
Uv Light ◽  
Solar Spectrum ◽  
Wide Band ◽  
Hybrid Nanocomposites ◽  
Wide Band Gap ◽  
Inorganic Semiconductors ◽  
The Cost ◽  
Ruthenium Dye ◽  
Photovoltaic Characteristics

Hybrid photovoltaic concepts based on a nanoscale combination of organic and inorganic semiconductors are promising way to enhance the cost efficiency of solar cells through a better use of the solar spectrum, a higher ratio of interface-to-volume, and the flexible processability of polymers. In this work, two types of thin film solar cells have been developed. In both types of solar cells, poly-N-vinylcarbazole (PVK) is used as electron donor, cadmium sulfide (CdS) and titanium dioxide (TiO2) nanocrystals are used as electron acceptors, respectively. Since TiO2 has a wide band gap and can only absorb UV light, in the second type of solar cell, ruthenium dye is used as photo-sensitizer. The preliminary results of photoconductive and photovoltaic characteristics of these two inorganic-organic composites are presented.

A weak derivative approach to optimization of threshold parameters in a multicomponent maintenance system

2001 ◽  
Vol 38 (02) ◽  
pp. 386-406 ◽  
Author(s):  
Bernd Heidergott
Keyword(s):  
Optimization Problems ◽  
Estimation Algorithm ◽  
Replacement Policy ◽  
Cost Performance ◽  
Weak Derivative ◽  
Preventive Replacement ◽  
Maintenance System ◽  
Threshold Optimization ◽  
Age Replacement ◽  
The Cost

We consider a multicomponent maintenance system controlled by an age replacement policy: when one of the components fails, it is immediately replaced; all components older than a threshold age θ are preventively replaced. Costs are associated with each maintenance action, such as replacement after failure or preventive replacement. We derive a weak derivative estimator for the derivative of the cost performance with respect to θ. The technique is quite general and can be applied to many other threshold optimization problems in maintenance. The estimator is easy to implement and considerably increases the efficiency of a Robbins-Monro type of stochastic approximation algorithm. The paper is self-contained in the sense that it includes a proof of the correctness of the weak derivative estimation algorithm.

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