Search results

The phase composition and structure study were performed using X-ray diffraction and scanning electron microscopy.
The glass microsphere that be used in this study is a kind of thin-shell structure, with the mean particle of 20 μm and the density of 0.35g/cm3.
Results and discussion Structure characterization.
It is shown that the glass microsphere dispersed Bi-Sb composites have a dominant phase with Bi-Sb structure (space group R-3m).
It is shown that the bulk densities reduced gradually with increasing dispersing content, which is consistent with the above analysis of structures.

Semarang 5, Malang 65145, Indonesia 2Analytical Chemistry Research Group, Bandung Institute of Technology, Jl.
Moreover, Fe3O4 nanoparticles exhibited an inverse cubic spinel structure with lattice parameters of a = b = c = 8.364 Å, in agreement with previous reports [12,16].
In the above structure, all tetrahedral holes were filled by Fe3+ ions, with octahedral holes being occupied by Fe2+ (50%) and Fe3+ (50%) ions [17].
However, the main peaks of cycled Fe3O4 were similar to those of original Fe3O4, which indicated that MB treatment did not result in crystal structure change.
The possible mechanism of MB photodegradation can be proposed as follow: O2-* ads+ H+ ↔ HOO* 2HOO* ads→ H2O2+ O2 Fe3+ + H2O2→ FeIII (H2O)2+ + H+ FeIII (H2O)2+ → Fe2+ + H2O Fe2+ + H2O2 → Fe3+ + OH* + OH- This radical OH* dan O2-* will react with dyes and degrade dyes structure into a simple structure.

So it indicated that the chemical composition and the plasma-treated fiber surface morphology, and structure of fiber pores were changed.
Therefore, the reasons of showing different dyeing behavior between the plasma-treated wool and untreated wool can be explained from the changes of the chemical structure and the surface morphological structure of the wool.
Fibre Chemistry, 2(2008)143-146
The dyeing dynamics and structure of modified cotton fabric with cationic chicken feather keratin agent, J.
Comparative study of the structure and properties of wool treated by a chicken-feather keratin agent, plasma, and their combination, J.

Furthermore, dissimilar aluminium alloys also difficult to weld because of their difference in metallurgy, chemistry and thermal properties.
Moreover, coarse grain structure was found at higher spindle speed due to higher amount of heat, fine grain structure was at lower spindle speed.
It leads to refined grain structures within the stir zone with deformation.
Onion ring formation is observed as dark and bright bands structure in the weld nuggets.
It shows dimple structure.

Furthermore, co­deformation of Fe and Cr is visible and a significantly refined structure at higher shear strains is noticed.
A very fine structure as well as a coarse­grained phase can be seen.
Crystal chemistry and Calphad modeling of the σ phase.
Enhanced magnetoresistance in layered magnetic structures with antiferromagnetic interlayer exchange.
[20] Chiarotti, G. (1995). 1.6 Crystal structures and bulk lattice parameters of materials quoted in the volume.

By adding flexibility to the structure of DSSC, applicability of DSSC would be more extended.
We were interested in a metal textile constructed from metal wires having a mesh and flexible structure as the substrate of the TiO2 electrode for DSSC [7,8].
Figure 1 shows the structure of the formed micro-metal textile, in which the Sn-plated Cu wires were woven every ~250 mm interval.
Inset shows the molecular structure of N3 dye.
Although the observed light-to-electric energy conversion efficiency was low of 0.20% at present, a large improvement is possible by optimizing the structure of the micro-metal textile.

The morphology/composition and structure of the oxidized samples were also studied using SEM/EDS and XRD techniques.
The Thermo-calc program (Software AB:Fundation of Computational Thermodynamics 1995-2003, Stockholm-Sweden) and the HSC Chemistry for Windows (Software Outokon: version 3.02, Finland 1994) have been used for the simulations.
The structure of the oxidized samples was studied by the X-Ray Diffraction (XRD) using a Philips X´Pert diffractometer, using Cu Kα (1.54056Å) radiation and by means of angle 2θ and grazing incidence (GIXRD).

According to experimental findings, in ceramic stereolithography with a bottom-up DLP system, solid structures prossessing a larger cross section are more difficult to manufacture than discontinuous structures with the same outer contour, such as mesh structures.
Fig. 3 Simulation and experiment result of different structures.
(2) Different internal structures with same outer contour.
The network structure reduces the temperature peak, and the discontinuous structure improves the temperature distribution unevenness.
Journal of Photochemistry and Photobiology A: Chemistry, 2013, 252: 216-221

More specifically, the sensitivity of this device has been raised from 141.933 nm/Refractive Index Unit (RIU) for an un-tapered sensor structure DMMF=125 μm to 352.915 nm/RIU for a tapered sensor structure DMMF=55 μm.
The process of fabrication of the MMI structure is quite simple and low-cost.
The optical interrogator is connected to SMF-25 and then sent to the SMF-MMF reflection structure.
The reflected optical spectrum from the SMF-MMF structure is captured by the PXIe-4844.
A Thesis to the Graduate School in Partial Fulfillment for the Requirement of the Award of Master of Science Degree in Chemistry of Egerton University, Njoro, Kenia, May 2011

The absence of wet chemistry means that there will be no residual solvent or other contaminant [9, 10].
Thus, several studies to modify the surface structure of PS have been done to improve the responsivity of this polymer for cell attachment, spreading and migration [4,17,18].
The negative percentage of oxygen obtained for untreated PS indicates no oxygen element in the chemical structure and higher percentage of elemental carbon.
This can be inferred from the original chemical structure of PS which contains only carbon and hydrogen elements [9].
This might be due to the opening of aromatic ring in PS structure which releases the carbon element.