The structural and magnetic properties by layer engineering and processing
Báo cáo toán học: " The structural and optical properties of GaSb/InGaAs type- quantum dots grown on InP (100) substrate" ppt
... investigated the structural and optical properties of type-II GaSb/InGaAs QDs grown on InP (100) substrate using molecular beam epitaxy [MBE] Experiments GaSb/InGaAs type-II QDs were grown on the (100) ... independent of the excitation power which is a typical feature of the type-I band transition Therefore, the interband transition of the GaSb QD would be the only proper origin of the high-energy ... bottom of the conduction band of GaSb QDs In such circumstance, the light emission intensity of the GaSb QD could be stronger than the type II transition due to the stronger spatial confinement of...
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Báo cáo hóa học: " Effect of the Nd content on the structural and photoluminescence properties of silicon-rich silicon dioxide thin film" pdf
... http://www.nanoscalereslett.com /content/ 6/1/161 function of the Nd concentration and the annealing temperature in relation with their microstructures The Nd- doped silicon- rich silicon oxide (SRSO) thin layers were synthesized ... emission of Nd3 + ions is more efficient while Si-np are formed, and while the Nd content is low (0.08 at.%) In such conditions, Nd3 + ions benefit from the sensitizing effect of Si-np and from the ... doi:10.1186/1556-276X-6-161 Cite this article as: Debieu et al.: Effect of the Nd content on the structural and photoluminescence properties of silicon- rich silicon dioxide thin films Nanoscale Research Letters 2011...
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báo cáo hóa học:" The structural and optical properties of GaSb/InGaAs type-II quantum dots grown on InP (100) substrate" docx
... of the excitation power which is a typical feature of the type-I band transition Therefore, the interband transition of the GaSb QD would be the only proper origin of the highenergy peak In the ... and the nature of the direct transition type I transition It may be the reason that the PL intensity of the direct interband transition (type I) was strong as observed in the experiment So, these ... conduction band of GaSb QDs In such circumstance, the light emission intensity of the GaSb QD could be stronger than the type II transition due to the stronger spatial confinement of carriers in the...
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Báo cáo hóa học: " The structural and optical properties of GaSb/InGaAs type-II quantum dots grown on InP (100) substrate" ppt
... of the excitation power which is a typical feature of the type-I band transition Therefore, the interband transition of the GaSb QD would be the only proper origin of the highenergy peak In the ... and the nature of the direct transition type I transition It may be the reason that the PL intensity of the direct interband transition (type I) was strong as observed in the experiment So, these ... conduction band of GaSb QDs In such circumstance, the light emission intensity of the GaSb QD could be stronger than the type II transition due to the stronger spatial confinement of carriers in the...
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Báo cáo hóa học: "Influence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide" docx
... Sn#1000 Conversion/Selectivity (%) Conversion/Selectivity (%) ð1Þ The effects of the process of segregation and de-mixing of these rare earths on the SnO2 catalytic properties were studied and compared ... modification of the nanostructure and the basic sites of the particles Another phenomenon starts to occur on the surface of doped samples, a segregation process of particles of metastable solid solution, ... on the morphology and properties of tin oxide Rare earth cations have, as yet, been little explored as tin oxide dopants for catalytic purposes However, the consensus is that their influence on...
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Báo cáo khoa học: "The Formal and Processing Models of CLG" docx
... characteristics of the CLG processing model are the use of constrained terms to represent partial descriptions, the lack of systematic rewriting of constraints to normal form and the lazy evaluation of complex ... constraints between terms and formulas built from the atomic constraints using the standard logic operators, namely disjunction, conjunction and negation, and that a notion of validity can be defined ... unification of the set of equational constraints and by either redefining the constraint language in a suitable way (e.g redefining the notion of path) or else by translating the non-atomic formulae of...
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The transmission and processing of sensor rich videos in mobile environment
... These so-called sensor- rich videos can conveniently be captured with smartphones In this thesis we investigate the transmission and processing of sensor- rich videos in mobile environment Our ... photos and videos have been accumulating continuously on the web, posing a challenging problem for mining this type of media data Existing solutions attempt to examine the signal content of the videos ... investigate the natural concepts of a viewing direction and a view point For example, the location of the most salient object in the video is often not at the position of the camera, but may in fact...
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Báo cáo Y học: The porcine trophoblastic interferon-c, secreted by a polarized epithelium, has specific structural and biochemical properties potx
... paper analyses some of the structural, biochemical and functional properties peculiar to trophoblastic porcine IFN-c, by comparison with a natural IFN-c produced by activated porcine leukocytes ... potential glycosylation sites present on the IFN-c polypeptide core They could differ in the rate and site of glycosylation, considering the 22 500-Da band as bi-glycosylated and the 18 000-Da band ... previously [21] Titers were expressed in antiviral IU equivalents by a comparison with a calibrated porcine IFN -a laboratory standard The amount of IFN-c (mg) was determined by ELISA Specific antiviral...
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Báo cáo hóa học: " Fe3O4–Au and Fe2O3–Au Hybrid Nanorods: Layer-by-Layer Assembly Synthesis and Their Magnetic and Optical Properties" pptx
... XRD pattern can confirm the synthesis of a -Fe2O3–Au and Fe3O4–Au hybrid nanorods Fe3O4–Au and a -Fe2O3–Au hybrid nanorods show the combined magnetic and optical properties, which originate 123 1758 ... respectively, which further confirm the synthesis of Fe3O4– Au hybrid nanorods IR analysis was employed to further confirm the synthesis of a -Fe2O3–Au and Fe3O4–Au hybrid nanorods (Fig 6) It can be ... layer-by-lay assembly and (curve b) after layer-by-lay assembly; nitrogen adsorption and desorption isotherms of FeOOH nanorods c before layer-by-lay assembly and e after layer-by-lay assembly at...
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Engineering the band gap, fermi level, electronic and magnetic properties of transparent conducting oxides
... ENGINEERING THE BANDGAP, FERMI LEVEL, ELECTRONIC AND MAGNETIC PROPERTIES OF TRANSPARENT CONDUCTING OXIDES YONGLIANG ZHAO (B.Sc, NATIONAL UNIVERSITY OF SINGAPORE, SINGAPORE) A THESIS SUBMITTED ... splitting and carbon dioxide reduction, both of which strongly depend on the positions of the valence and conduction band edges Hence to modify the bandgap and also the valence and conduction band ... considering the changes of the optical bandgap and Fermi level, it is concluded that both the conduction and valence band edges shift negatively (the energy difference between the level and vacuum...
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Tài liệu Báo cáo " The effect of cobalt substitution on structure and magnetic properties of nickel ferrite " pptx
... addition of Co2+ ion content, which may be attributed to the ionic radii of constituent ions causing increase in lattice parameter and the densities of pure cobalt ferrite (5.29 g/cm3) and pure nickel ... temperature.These plots show that an increase in Co2+ doping yields monotonic increase in the saturation magnetization of Niferrite which may be due to the substitution of Ni2+ ions by Co2+ on the octahedral ... to the contribution of magnetocrystalline anisotropy of material, the second one is given by shape anisotropy of crystalline particles (domains) and the third one is orginated from the action of...
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Báo cáo " The magnetic properties and charge-ordering state in La1-xCaxMnO3 (x = 0.46; 0.50) compounds " doc
... From these curves with various temperature intervals, the magnetic The magnetic properties and charge-ordering state in 29 entropy change, ∆Smag, can be approximately calculated using isothermal ... external magnetic field by four-point probe technique The magnetocaloric effect measurement was performed in a pulse field Results and Discussion The XPD patterns of the La1-xCaxMnO3- δ (x= 0.46; 0.50) ... plots for La1-xCaxMnO3- δ (x= 0.46, 0.50) samples Figure 6: Temperature dependences of the resistance for La1-xCaxMnO3- δ (x= 0.46, 0.50) samples It has been shown that most of the CO states in Re1-xAxMnO3...
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Báo cáo khoa học: Structural and biological effects of a b2- or b3-amino acid insertion in a peptide Application to molecular recognition of substance P by the neurokinin-1 receptor ppt
... control at t ¼ for each peptide The percentage of degradation was calculated by comparing the area of the peaks of the intact peptide at t ¼ and t ¼ 60 Binding assays Binding assays were carried ... [33], the peptides containing a b-amino acid substitution in position have increased stability compared to the corresponding a- amino -acid- containing peptides Therefore it is possible to increase peptide ... acid incorporation When Phe7 or Phe8 are replaced by b2-HPhe, the corresponding analogues are weak competitors of specific NK-1 binding sites These amino acids are in the helical domain of SP which...
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