structural and physical properties of alginates

... image and EDAX (Figure 4) spectrum of Ca10-xAgx(PO4)6(OH)2, with x = and 0.2, are shown The morphology of the nanoparticles of HAp and Ag: HAp was investigated by SEM SEM images provide the Page of ... results of XRD and TEM, the FTIR and FT-Raman spectra of the HAp show the absorption bands characteristic of hydroxyapatite XPS results provide the additional evidence for the successful doping of ... and composition of the samples Figure shows the survey XPS narrow scan spectra of Ag:HAp (x = 0.2) nanopowder obtained at 100°C and XPS narrow scan spectra of Ag element In the XPS spectrum of...

Ngày tải lên: 20/06/2014, 23:20

... mRNA and also of its own transcript For this reason, the level of mRNA for the wildtype form of MCPIP and the level of mRNA for IL-1b (Fig 5A, lane 3) were lower in comparison to the level of mRNA ... clarify the dynamics and features of this protein Role of MCPIP in regulation of the endogenous IL-1b transcript level After identification of a PIN domain in the MCPIP by use of bioinformatics, ... lanes 2,3 and 4, lower band) The levels of mutant and wild-type MCPIP mRNAs were higher when these vectors were co-transfected with a vector overexpressing IL-1b (Fig 5, lanes and 4, upper bands)...

Ngày tải lên: 18/02/2014, 14:20

... temperature of 400 1C, the former morphology of sample C changed rimous and rough Such surface mophology of sample D could be due to the agglomerated growth of grains and the formation of good crystallinity ... of microstructural and electrochromic properties of the nanostructured tungsten oxides with mesopores from the TMDD surfactantassisted process The crystallization status, surface morphology and ... of 901 Fig 5b shows W 4f high-resolution XPS spectra, and the inserted was the O 1s level peak analysis of sample C It is confirmed that only W, O and C elements are found in all of the films and...

Ngày tải lên: 20/03/2014, 13:08

... that of TiO2 , suggesting similar Fe and Ti surroundings in the doped and undoped samples In order to verify this statement, the filtered EXAFS of L Diamandescu et al / Materials Chemistry and ... membrane filters and analysed on a DANI GC 1000 gas chromatograph Fig XRD patterns of hydrothermally synthesized doped and undoped TiO2 148 L Diamandescu et al / Materials Chemistry and Physics 112 ... L Diamandescu et al / Materials Chemistry and Physics 112 (2008) 146–153 Experimental Results and discussion 2.1 Hydrothermal synthesis 147 3.1 X-ray diffraction Fe3+ - and Eu3+ -doped and -codoped...

Ngày tải lên: 20/03/2014, 13:08

Ngày tải lên: 22/03/2014, 11:20

... properties to Program Offices (e.g., Office of Water, Office of Solid Waste and Emergency Response, Office of Prevention, Pesticides and Toxic Substances) and Regional Offices Also, SPARC has been used ... databases The strength of the electrostatic interaction between S and C depends on the magnitude and relative orientation of the local fields of S and C and the dielectric properties and distances through ... Effect 3.4.3.3 Temperature Effect 3.4.4 Results and Discussions 3.4.5 Conclusion PHYSICAL PROPERTIES 4.1 Estimation of Physical Properties 4.2 Physical Properties Computational Approach 4.3 SPARC...

Ngày tải lên: 22/03/2014, 14:20

... diameter, and height size distribution of GaSb/ InGaAs QDs on InP (100) substrate, the AFM and STEM measurements were carried out Figure shows the AFM and STEM images of GaSb/In0.53Ga0.47As QDs and ... dependence of the PL peak energies over the third root of the excitation density [20] The inset of Figure 3b shows the linear dependence of the PL peak energies and the third root of the excitation ... almost 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...

Ngày tải lên: 20/06/2014, 20:20

... designed and carried out the experiments and wrote the first draft of the manuscript JHA analyzed the properties and helped draft the manuscript KNH and KSH detailed the original idea and modified ... http://www.nanoscalereslett.com/content/7/1/26 temperatures on the structural properties of the films has been investigated, and the optical properties of the films have also been analyzed Methods Synthesis ... Valenzuela and Russer reported that the FWHM of an XRD peak is reliant on the crystallite size and the lattice strain caused by the defect and/ or dislocations [16] The average particle sizes and FWHM...

Ngày tải lên: 20/06/2014, 21:20

... effect of Si-np towards Nd3+ ions The evolution of the integrated PL intensity of the Sinp PL band and the 920-nm PL peak is shown in the inset of Figure The enhancement of the PL intensity of the ... coupling between Si-np and Nd 3+ ions, and, accordingly, the potential of sensitizing of Si-np The increase of the PL intensity of Nd 3+ is then explained by the increase of the Si-np density as ... increase of the LO3 band intensity (see Figure 2b) is related to the increase of the number of Si-OSi bonds at the SiO x /Si-np interface [19,20], i.e., the increase of the density of Si-np [21]...

Ngày tải lên: 21/06/2014, 05:20

... growth angle effect of the films for optical properties The thickness of the ZnO thin films was checked by FE-SEM and was fixed at 100 nm Three growth angles (0°, 15°, and 30°) of the columnar ZnO ... Lee TS, Cheong B, Baik Y-J, Kim WM: Electrical, optical and structural properties of transparent and conducting ZnO thin films doped with Al and F by rf magnetron sputter J Eur Ceram Soc 2005, 25:2161-2165 ... http://www.nanoscalereslett.com/content/7/1/55 (a) Page of 440-746, Republic of Korea 4Department of Electrical Engineering, Seoil University, Seoul, 131-702, Republic of Korea Reflectance (%) 30 Authors’ contributions Y-HJ and WSC participated...

Ngày tải lên: 21/06/2014, 17:20

... GaSb/In0.53Ga0.47As QDs and histogram of the height of GaSb/In0.53Ga0.47As QDs (a) The AFM image of GaSb/In0.53Ga0.47As QDs, (b) histogram of the height of GaSb/In0.53Ga0.47As QDs, and (c) the STEM image of GaSb/In0.53Ga0.47As ... diameter, and height size distribution of GaSb/InGaAs QDs on InP (100) substrate, the AFM and STEM measurements were carried out Figure shows the AFM and STEM images of GaSb/ In0.53Ga0.47 As QDs and ... almost 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 highenergy...

Ngày tải lên: 21/06/2014, 17:20

... GaSb/In0.53Ga0.47As QDs and histogram of the height of GaSb/In0.53Ga0.47As QDs (a) The AFM image of GaSb/In0.53Ga0.47As QDs, (b) histogram of the height of GaSb/In0.53Ga0.47As QDs, and (c) the STEM image of GaSb/In0.53Ga0.47As ... diameter, and height size distribution of GaSb/InGaAs QDs on InP (100) substrate, the AFM and STEM measurements were carried out Figure shows the AFM and STEM images of GaSb/ In0.53Ga0.47 As QDs and ... almost 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 highenergy...

Ngày tải lên: 22/06/2014, 00:20

... 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 In spite of the relatively low specific ... also by acidic sites of the oxide catalysts Thus, it may be suggested that the control of surfaces and modifications of the nanostructures of the tin oxide particles, undoped and doped with rare ... depending on the nature of the catalyst, the type of interaction with the surface of the solid material, and the different reaction conditions [9, 10] Ethanol is rapidly dehydrated and dehydrogenated...

Ngày tải lên: 22/06/2014, 01:20

... Study the effects of crystallinity on the physical properties of the PEAs  Prepare a PEA with an ester to amide ratio of 4:1 in order to model the trend observed in the physical properties versus ... biodegradability of PEAs with varying ratios of ester to amide groups  Increase the molecular weights of the synthesized PEAs to further improve the thermal and mechanical properties (such as ... increased elasticity The increase of ester to amide ratio in PEA structure will diminish the mechanical strength of the polymer Synthesis of the PEA Step 1: Synthesis of different diols from oleic...

Ngày tải lên: 02/07/2014, 13:01

... optimum densification of each sample Figure presents the densities of MBNT4, MBNT5, MBN0.5T4 and MBN1.5T4 sintered at various temperatures for h Structural and Dielectric Properties of the Mn-Doped ... structure Structural and Dielectric Properties of the Mn-Doped µm (a) 16 µm µm (b) (c) Figure 1: SEM micrographs of sintered MBNT4 at different sintering temperatures: (a) 1250oC, (b) 1300oC and (c) ... structure and microwave dielectric properties of Ba4.2Sm9.2Ti18O54 ceramics Ceram Int., 35, 855–860 Pei, J., Yue, Z., Zhao, F., Gui, Z & Li, L (2009) Microstructure and dielectric properties control of...

Ngày tải lên: 07/08/2014, 14:20

... Portland Cement 2.2 Physical properties of MTA 2.3 Biological Properties of MTA 13 2.4 Comparison of White and Gray MTA 20 2.5 Comparison between MTA and ... STUDY OF THE BIOLOGICAL AND PHYSICAL PROPERTIES OF VISCOSITY ENHANCED ROOT REPAIR MATERIAL (VERRM) AND MTA PALLAVI UPPANGALA (BDS RGUHS, India) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE ... antimicrobial and antifungal properties similar to that of super-EBA and ZOE (Torabinejad et al 1995d, Al-Nazhan & Al-Judai 2003) The cytotoxic properties of MTA were lower than that of IRM and super-EBA...

Ngày tải lên: 15/09/2015, 22:51

... List of Tables List of Tables Table 1-1 Magnetic properties of L10 FePt alloy and other ferromagnetic materials Table 1-2 Elemental parameters of Fe, Pt and Ag Table 3-1 Comparison of ... advantages of the sputtering deposition method, compared with other physical deposition methods, are high yielding rates, good adhesion and controllability of structural and magnetic properties of the ... study magnetic and structural properties of FePt-Ag thin films, the first step is to fabricate the materials Characterization of the thin films provided information about structural and magnetic...

Ngày tải lên: 30/09/2015, 06:41

... and utilization The physical and mechanical properties of bamboo vary with the age of the bamboo and the height of the culm [Chauhan 2000] In general, SG and the properties of bamboo drop from ... on the physical properties of pulp [Tamolong 1967; Zamuco et al 1969] Aging of a bamboo culm influences physical, chemical, and mechanical properties, and consequently its processing and utilization ... bending properties, along longitudinal and radial directions of one, three, and five year old bamboo and determine the correlation between SG and bending properties, and (5) compressive strength of...

Ngày tải lên: 22/02/2014, 09:20

... effects of size and shape of Si-nc on the incorporation of group-III (B and Al), group-IV (C and Ge) and group-V (N and P) impurities Single-doping has been investigated both in spherical and faceted-like ... generalized gradient approximation using Vanderbilt ultrasoft pseudopotentials [27] for both the determination of the structural and electronic properties and norm-conserving pseudopotential within ... that the electronic properties of B- and P-codoped Si-nc are qualitatively and quantitatively different from those of either B- or P- single-doped Si-nc The presence of both a n and a p impurity...

Ngày tải lên: 16/03/2014, 15:15

... 2005 FEBS M Scocchi et al Structure and antimicrobial activity of PMAP-36 Fig CD spectra of the synthetic PMAP36 peptides Spectra of PMAP-36(1–35)2 (A) and of the truncated fragment PMAP-36(1– ... TFE (– –), and with 25% (–ÆÆ–ÆÆ–) and 50% (v/v) TFE Table shows the antimicrobial activity of the monomeric and dimeric peptides towards several Gram-positive and Gram-negative bacteria and two ... ATCC 27853, and clinical isolates of P mirabilis, C albicans and C neoformans Bacteria and fungi were maintained on MH agar or on solid Sabouraud agar dextrose medium, respectively, and were subcultured...

Ngày tải lên: 30/03/2014, 20:20