Báo cáo hóa học: " Influence of GaAs Substrate Orientation on InAs Quantum Dots: Surface Morphology, Critical Thickness, and Optical Properties" docx

... reinforced experimentally on GaAs (511)B surface (substrate misori- entation of 15.8°) and GaAs (311)B surface (substrate misorientation of 25.2°)[19, 20]. Nonetheless, our recent investigation of InAs QDs grown on ... 2:609–613 123 NANO EXPRESS Influence of GaAs Substrate Orientation on InAs Quantum Dots: Surface Morphology, Critical Thickness,...

Ngày tải lên: 22/06/2014, 19:20

... stress can only enhance d 33 of PTO to the maximum value of 380.50 pC/N. The enhancement of piezoelectricity is supported by the conclusion of uniaxial tensile stress dependency of elastic constant ... studying the influence of different strains on the properties of BTO and PTO, respectively [12–15]. Results and Discussion Figure 2a shows the uniaxial tensile stress r 33...

Ngày tải lên: 22/06/2014, 00:20

... decompo- sition and aldolization reaction between acetone and methanol [2–4]. However, the influence of the nature of the active sites (the surface basicity of the oxide) on the per- formance of the ... a series of simultaneous reactions. These reactions are more or less promoted depending on the nature of the catalyst, the type of interaction with the surface of...

Ngày tải lên: 22/06/2014, 01:20

... the band elec- trons and the localized d electrons of the Co 2? ions substituting host ions and is consistent with the reported results [41], giving an additional evidence of cobalt substitution. Figure ... different. Low cobalt concen- tration samples (B0.05 M) have less distortion of the tetrahedral coordination of Co 2? ions and direct band gap absorption, while high cobalt c...

Ngày tải lên: 22/06/2014, 00:20

... c). Conclusion Multiwalled carbon nanotubes were successfully function- alized with acid and amino groups. The functionalization resulted in uniform dispersion of the tube during imidiza- tion ... evolution of water molecules. The whole scheme of nanocomposites fabrication is illustrated in Fig. 2. Characterization Fourier Transform Infrared Spectroscopy Functionalization of MWCNTs...

Ngày tải lên: 22/06/2014, 01:20

... correspond to predominant single- step degradation with well-defined initial and final degra- dation temperatures and may be a result of a random chain scission process. Normally addition of particulate ... individual particles and the second power term is the contribution of particle–particle interaction. Another definitive equation for determining the modulus of a composite that...

Ngày tải lên: 22/06/2014, 01:20

... mechanistic understanding towards the roles of glycans on glycoprotein and glycocon- jugates structure, stability, dynamics, and function [13,49–55], the influence of the degree of glycosylation on the protein ... intermediate, followed by forma- tion and breakdown of a second tetrahedral intermedi- ate (EP 2 ) TET2 , and liberation of the reaction’s second product with...

Ngày tải lên: 19/02/2014, 05:20

... of 1, the greater extent of downfield shifts for the methyl protons than for the tert-butyl protons upon complexation, suggesting a strong interaction between the P and H in methyl groups and ... images, and the average size and standard deviation were determined. Sizes of synthesized InP were able to be correlated with respect to the first excitonic transition, and they co...

Ngày tải lên: 21/06/2014, 17:20

... amide II bands of different conformations of proteins have different peak maxima, and (b) IR bands due to amino acid side-chain absorptions (overlapping bands of Glu and Asp) between 1550 and 1585 ... in canonical conformation (green) and in noncanonical conformation (orange). Only the latter conformation allows the peptide to anchor to the HC by a salt bridge from pArg5 to Asp1...

Ngày tải lên: 06/03/2014, 00:21

... inactivation courses of apo-TNXI and of TNXI in the presence of 5 mm concentrations of each of the three divalent cations (Mg 2+ ,Mn 2+ ,or Co 2+ ). With the exception of apo-TNXI, whose inacti- vation ... TNXI concentration during thermal denaturation in the presence of 5 m M Mg 2+ plus 0.5 mM Co 2+ . The concentration of soluble protein (% of starting concentration, h)...

Ngày tải lên: 23/03/2014, 13:20