The effect of annealing conditions on the red photoluminescence of nanocrystalline Si/SiO films
The effect of annealing conditions on the red photoluminescence of nanocrystalline Si/SiO films
. the concentrations of these two components at the corre- sponding annealing temperature and time. 4.2. The annealing conditions dependence of the red PL Now we can explain the spectral change of the PL from. role of hydrogen here is the effective passivation of nonradiative recombination centers. 3.4. The effect of annealing times upon 400 8C annealing At an annealing temperature of 400 8C, lo...
Ngày tải lên: 16/03/2014, 15:31
A CFD analysis on the effect of ambient conditions on the hygro-thermal stresses distribution in a planar ambient airbreathing PEM fuel cell
... continuity equation, the mass conservation equation for each phase yields the volume fraction ( ) r and along with the momentum equations the pressure distribution inside the channel. The continuity ... The mass balance is described by the divergence of the mass flux through diffusion and convection. Multiple species are considered in the gas phase only, and the s...
Ngày tải lên: 05/09/2013, 14:58
effects of cultivating conditions on the mycelial growth
... corre- sponding to a higher dry mycelium concentration. The formation of pellets is largely determined by the extent of agitation and aeration. The effect of aeration on the growth of mushroom ... mycelia. 3.3 Effect of surface aeration The effects of the surface aeration were investigated by varying the volume of ¯ask so that the ratio of the surface a...
Ngày tải lên: 06/05/2014, 11:53
Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx
... Journal of Science, Mathematics - Physics 25 (2009) 1-7 1 Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition Nguyen Hoang Luong* ... discovered as early as 1934 that the application of ultrasonic energy could increase the rate of electrolytic water cleavage. The effects of ultrasonic radiation on c...
Ngày tải lên: 13/02/2014, 03:20
Effect of Process Parameters on the Degradation of Polychlorinated Biphenyls in Water Matrix using UV/H2O2
... the desired sampling times. The pH of the samples and the temperature of the solution inside the photoreactor were continuously monitored. The adjustment of the pH of the solution was done using ... H 2 SO 4 . The effect of the initial pH of the solution was evaluated using pH values of 3, 7, 5.8 and 10. For the effect of initial PCB concentra...
Ngày tải lên: 05/09/2013, 09:08
Effect of urban emissions on the horizontal distribution of metal concentration in sediments in the vicinity of Asian large cities
... mgZn/kg based on the uniform distribution of these metals in the sediments of the lake. The higher concentration in the northwest part of the lake is probably due to reverse flow of the polluted ... distribution was obtained. The distribution of zinc and lead concentration in Manila Bay clearly shows the effect of anthropogenic contamination and it was exp...
Ngày tải lên: 05/09/2013, 09:08
Indoor tests to investigate the effect of brine depth on the performance of solar still
... examining the effect of climatic, operational and design parameters on its performance. One of the most important of the operational parameters that has received a considerable attention in the literature ... inclination, thermal insulation and brine depth). The objective of this work is to investigate the effect of brine depth on the productivity and effici...
Ngày tải lên: 05/09/2013, 16:10
Tài liệu Báo cáo khoa học: Effect of deletion of the DNase I hypersensitive sites on the transcription of chicken Ig-b gene and on the maintenance of active chromatin state in the Ig-b locus docx
... demonstrated the essential role of this region in the transcription of the Ig-b gene. Deletion of region III decreased the expres- sion of Ig-b mRNA to 40% of the expression in prede- letion cells ... deletion (16 kb Del) in one allele of the Ig-b locus (Fig. 1). Introduction of the 16 kb Del construct into DT40 ⁄ Cre cells resulted in two deletion clones. In one...
Ngày tải lên: 19/02/2014, 16:20
Báo cáo khoa học: Effect of oculopharyngeal muscular dystrophy-associated extension of seven alanines on the fibrillation properties of the N-terminal domain of PABPN1 pot
... confor- mation is presumably very slow under the applied conditions. This assumption, and the fact that seeds lose their activity upon incubation, may be responsible for the only moderate acceleration of ... effect on the fibrillation properties of the most extreme disease-asso- ciated extension of seven additional alanines, fibrillation kinetics and fibril properties of N...
Ngày tải lên: 07/03/2014, 11:20
Báo cáo khoa học: Protein stabilization by compatible solutes Effect of diglycerol phosphate on the dynamics of Desulfovibrio gigas rubredoxin studied by NMR docx
... denaturing reaction would be an effective stabilizer. This leads us to consider the possible effects of solute addition on the activation energy of the denaturing process and we look to the results of the ... structure. The least ordered parts of the NMR structure [28] are the N terminus and the loop region. DGP addition leaves the overall picture unaltered, but,...
Ngày tải lên: 07/03/2014, 21:20