Low temperature carbon co-implantation in silicon: Defects suppression and diffusion modeling

2021 ◽  
Vol 129 (19) ◽  
pp. 195706
Author(s):  
P. Dumas ◽  
P.-L. Julliard ◽  
J. Borrel ◽  
S. Duguay ◽  
F. Hilario ◽  
...  
Keyword(s):  
Low Temperature ◽  
Diffusion Modeling ◽  
Silicon Defects ◽  
And Diffusion

scholarly journals Biosorption and Diffusion Modeling of Pb(II) by Malt Bagasse

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Klaiani B. Fontana ◽  
Giane Gonçalves Lenzi ◽  
Erica R. L. R. Watanabe ◽  
Ervin Kaminski Lenzi ◽  
Juliana A. M. T. Pietrobelli ◽  
...  
Keyword(s):  
Sorption Process ◽  
Isotherm Models ◽  
Diffusion Modeling ◽  
Biosorption Capacity ◽  
Kinetic And Thermodynamic Parameters ◽  
Pseudo Second Order ◽  
Ph Optimization ◽  
Kinetics Of ◽  
And Diffusion

The removal of Pb(II) from water by biosorption processes onto malt bagasse was investigated and the kinetic and thermodynamic parameters were obtained; additionally a diffusion modeling was proposed. The characterization of malt bagasse was performed by FTIR and SEM/EDS. The experiments were conducted in batch system and an experimental design based response surface methodology was applied for agitation speed and pH optimization. The kinetics of biosorption followed pseudo-second-order model and the temperature of the process affected the biosorption capacity. Isotherm models of Langmuir, Freundlich, and Elovich were applied and the Langmuir model showed better fit and the estimated biosorption capacity was 29.1 mg g−1. The negative values obtained for ΔG° and positive values of ΔH° confirm, respectively, the spontaneous and endothermic nature of the process. The diffusion modeling was performed based on experiments in the absence of agitation to investigate the influence of the biosorbent on the sorption process of Pb(II) ions.

scholarly journals Developing an Internationalization Strategy Using Diffusion Modeling: The Case of Greater Amberjack

Fishes ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 12 ◽  
Author(s):  
Edwin Nijssen ◽  
Machiel Reinders ◽  
Athanasios Krystallis ◽  
Gemma Tacken
Keyword(s):  
Production Capacity ◽  
International Markets ◽  
Diffusion Modeling ◽  
Domestic Markets ◽  
Internationalization Strategies ◽  
Greater Amberjack ◽  
Internationalization Strategy ◽  
And Diffusion ◽  
New Fish Species ◽  
Viable Business

For farmers of new fish species, market adoption is needed in order to grow a viable business. Farmers may try to sell the new species in their firms’ domestic markets, but they might also look at other markets. However, as markets are becoming more global and competitors more international, considering internationalization may be a necessity rather than a choice. Using diffusion modelling, and based on results of an online supermarket experiment, the innovation and imitation parameters are estimated and diffusion curves for five countries predicted in an attempt to determine the best lead market for introducing fillets of farmed greater amberjack (Seriola dumerili). The production capacity consequences of implementing different internationalization strategies (i.e. “sprinkler” and “waterfall”) were also explored. A waterfall strategy refers to the sequential introduction of a product in different markets, whereas the sprinkler strategy concerns the simultaneous introduction of a product in multiple international markets. Since a sprinkler approach requires many resources and the ability to quickly ramp up production capacity, a waterfall approach appears more suitable for farmers of greater amberjack. Italy and Spain appear to be the best lead markets for greater amberjack farmers to enter first.

scholarly journals Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni4.1Al0.3Mn0.4Co0.45 for Ni-MH Batteries

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4220
Author(s):  
Malgorzata Karwowska ◽  
Karol J. Fijalkowski ◽  
Andrzej A. Czerwiński
Keyword(s):  
Low Temperature ◽  
Hydrogen Storage ◽  
High Reliability ◽  
Alkali Metal Hydroxide ◽  
Type Alloy ◽  
Temperature Characteristics ◽  
Nickel Hydride ◽  
And Diffusion ◽  
Diffusion Of Hydrogen ◽  
Storage Properties

Nickel hydride batteries (Ni-MH) are known of their good performance and high reliability at temperatures below 0 °C, which is significantly dependent on electrolyte composition. Here we present the low temperature characteristics of pristine AB5-type alloy, LaMm-Ni4.1Al0.3Mn0.4Co0.45, determined in various alkali metal hydroxide solutions. We found that the combination of KOH with NaOH showed a significant effect of enhancement of low temperature performance of the electrode material and diffusion of hydrogen in the alloy. This 6M binary mixed NaOH/KOH electrolyte, comprising 4M KOH component and 2M NaOH component, made it possible to maintain 81.7% and 61.0% of maximum capacity at −20 °C and −30 °C, respectively, enhancing the hydrogen storage properties of the alloy after reheating to room temperature.

Adsorption kinetics and diffusion modeling of CH4 and CO2 in Indian shales

Fuel ◽  
2018 ◽  
Vol 216 ◽  
pp. 61-70 ◽  
Author(s):  
Sneha Rani ◽  
Basanta K. Prusty ◽  
Samir K. Pal
Keyword(s):  
Adsorption Kinetics ◽  
Diffusion Modeling ◽  
And Diffusion
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