-
Chapter and Conference Paper
Nanoanalysis of InAs/GaAs quantum dots using low-loss EELS spectra
The elemental distribution in InAs/GaAs quantum dots has been analysed using the d transition edges in the imaginary part of the dielectric function, ɛ2(E), obtained from the electron energy loss spectrum from a ...
-
Chapter and Conference Paper
Map** of the effective electron mass in III–V semiconductors
The effective mass in semiconductors is related to the mobility of charge carriers as well as the density of states. As electron mobility inherently influences semiconductor device performance, knowledge of th...
-
Chapter and Conference Paper
Chemical composition and strain distribution of InAs/GaAs(001) stacked quantum rings
The strain and composition distributions of InAs/GaAs(001) stacked self-assembled quantum rings (QRs) grown by MBE have been analyzed. Transmission electron microscopy (TEM) images revealed a high degree of ve...
-
Chapter and Conference Paper
Changes in plasmon peak position in a GaAs/Tn0.2Ga0.8As structure
We have investigated changes in the plasmon loss peak seen in electron energy loss spectra from a 15 nm In0.2Ga0.8As layer in GaAs using a VG HB601 UX FEG-STEM. We observe a relative shift in plasmon peak positio...
-
Article
Effect of different levels of NADH availability on metabolite distribution in Escherichia coli fermentation in minimal and complex media
A range of intracellular NADH availability was achieved by combining external and genetic strategies. The effect of these manipulations on the distribution of metabolites in Escherichia coli was assessed in minim...
-
Article
Expression of the ACC synthase and ACC oxidase coding genes after self-pollination and incongruous pollination of tobacco pistils
In tobacco, as in other species, ethylene is produced in response to pollination. Although tobacco is a self-compatible species, it displays unilateral incongruity with other Nicotianaplants. Incongruous pollinat...
-
Chapter and Conference Paper
Multiple Crossover per Couple with Selection of the Two Best Offspring: An Experimental study with the BLX-α Crossover Operator for Real-Coded Genetic Algorithms
In this paper, we propose a technique for the application of the crossover operator that generates multiple descendants from two parents and selects the two best offspring to replace the parents in the new pop...
-
Chapter and Conference Paper
A Prediction System for Cardiovascularity Diseases Using Genetic Fuzzy Rule-Based Systems
In this paper we present a fuzzy rule-based system to predict cardiovascularity diseases. The input variables of the system are the most in ffuent factors for that type of diseases and the output is a risk pre...
-
Article
Effect of High Temperature Single and Multiple AlN Intermediate Layers on N-polar and Ga-polar GaN Grown by Molecular Beam Epitaxy
Wurtzite GaN samples containing one, three and five 4nm thick high temperature (HT) AlN Interlayers (IL) have been grown on (0001) sapphire substrates by plasma-assisted molecular beam epitaxy (PAMBE). N-polar...
-
Article
Critical thickness of high-temperature AIN interlayers in GaN on sapphire (0001)
We analyze by cross-sectional transmission electron microscopy the threading dislocation behavior when crossing an AlN intermediate layer in the GaN/AlN/GaN/sapphire system grown by molecular beam epitaxy. Dis...
-
Article
Do Germination Indices Adequately Reflect Allelochemical Effects on the Germination Process?
Allelopathy is often demonstrated by testing allelochemical effects on germination using many germination indices to assess them. The objective of this work was to compare four common germination indices (GT, S, ...
-
Article
Optimizing the results in alpha-spectrometry of very low-level activity samples when the spike used is present in the sample
Determination of very low-level activity in samples using α-spectrometry is possible due to the low background. In order to determine the chemical yield in the separation of the element of interest, a spike mu...
-
Article
Estimations des erreurs de meilleure approximation polynomiale et d'interpolation de Lagrange dans les espaces de Sobolev d'ordre non entier
On établit des majorations explicites de I'erreur de meilleure approximation polynomiale ainsi que des majorations explicites et nonexplicites de I'erreur d'interpolation de Lagrange, lorsque la fonction consi...
-
Chapter and Conference Paper
Procedure of Mesh Data Generation in Codes for the Analysis of Viscous Flow
This paper describes the main characteristics of a code for finite element mesh generation. The objective of the code exposed is to generate every coordinates of each nodal point and the conectivity among thes...
-
Article
The specific heat and critical magnetic field of superconducting PdH(D)
From the solution of the Eliashberg equations on the imaginary axis, the thermodynamic properties, specific heat, and critical magnetic field of PdH(D) have been calculated. The Eliashberg kernels α2(Ω)F(Ω) were ...
