Báo cáo vật lý: "Flexural and Morphological Properties of Epoxy/Glass Fibre/SilaneTreated Organo-montmorillonite Composites Nor Hamidah Mohd" potx

... mechanical properties and fracture behaviour of nanocomposites and carbon fibre composites (CFRPs) that contained organoclay in the E matrix. Bozkurt et al.4 reported that the flexural properties of ... morphological properties of epoxy/glass fiber composites. Polym. Int., 56(4), 512–517. 8. Chow, W. S. (2007). Water absorption of epoxy/glass fiber/organo-montmorillonite nanocomposites. eXPRESS ... tensile strength Epoxy/Glass Fibre/Silane-Treated Organo-montmorillonite 46 3.2 Flexural Properties The effects of silane-treated OMMT loading on the flexural modulus of E/GF composites are...

Báo cáo vật lý: "Structural and Dielectric Properties of the Mn-Doped BaO-Nd2O3-4TiO2 System" ppt

... composed of a major phase, BaNd2Ti5O14, with some secondary phases, Nd2Ti2O7 and BaTi4O9. The formation of the secondary phases affects the density, dielectric properties and quality ... phase of standard BaNd2Ti5O14, ICDD No 33–136. The lattice parameters of the XRD show a = 12.20 Å, b = 22.35 Å and c = 3.84 Å. However, detailed observation shows the presence of extra ... 1300oC and 1350oC). Both spherical and rod-shaped grains were observed in the sample sintered at 1250oC. The diameter of the spherical grains and rod-like grains are similar in the range of...

Báo cáo vật lý: "Physical and Chemical Characteristics of Citrullus lanatus Var. Colocynthoide Seed Oil" pdf

... used as a source of heat energy for cooking.7 Due to the growth of the importance of oilseeds in the national economy of Sudan, the high demand to look for a new source of oil and the sufficient ... “Gurum” and is semi-cultivated in the beach of the Nile River in the north of Sudan. The green parts of the plant are used as animal feeds, the seeds are used as a masticatory article and the ... 2.1 Seed Characteristics and Composition Seed color was determined visually. One hundred seeds of each type were picked randomly and weighed, dehulled and then, hulls and kernels were weighed...

Báo cáo vật lý: "Volumetric and Thermodynamic Studies of Molecular Interactions in Ternary Liquid Mixtures at 303, 308 and 313K" pptx

... between ketones and alkanols. The subsequent formation of new hydrogen bonds between the proton acceptor oxygen atoms of the group of DMF and the proton of the – OH group of 1-alkanols 17 ... subsequent formation of (new) H-bonds [C=O … H–O] between the proton acceptor oxygen atom (with lone pair of electrons) of the C=O group of DMF and the proton of the OH group of 1-alkanols. The ... were evidently due to the rupture of the hydrogen bonds in pure cyclohexanone and 1-alknaols and DMF-DMF, dipole-dipole interactions, and the formation of O–H…C=O and perhaps even O–H ….N(CH3)2...

Báo cáo vật lý: "MODELLING AND SIMULATION STUDY OF VISIBLE EMISSION TRANSMISSIVITY OF SILICON RELATED TO SINGLE AND MULTILAYER ANTIREFLECTION COATINGS" potx

... of Si, SiO2 and Ge for increasing transmittance of Si as active medium in the far red region of 720–750 nm. This paper reports the design and simulation of the transmissivity of single and ... and ek shows the direction of the wave propagation. For simplicity, we consider normal incidence of light with plane polarization (θ = 0). So, N layers of nj can be expressed in terms of ... conclusions: the transmissivity of ~ 720–750 nm emission of silicon is affected significantly by the single and multilayer thin film coatings of Ge, SiO2 and Si/SiO2/air and Si/Ge/Si/SiO2/air...

Báo cáo vật lý: "Protonation and Complexation Approaches for Production of Protic Eutectic Ionic Liquids" ppsx

... systems. The physical and chemical properties of PEILs are congruent to those of the traditional ILs, but the range of structures for PEILs is likely to be different from that of ILs which are constituted ... non-volatile, and ILs are highly polar, miscible with certain organic solvents and/ or water, and have good solubility with organic and inorganic materials. They are also chemically inert, reusable and ... reveal that a double molar ratio of urea and an equimolar of oxalic acid produced PEILs. PEILs were successfully formed by using combinations of hydrochloride salts and complexing agents. HCl acts...

Báo cáo vật lý: "FORMATION AND MORPHOLOGY OF COLLOIDAL CHITOSAN-STABILIZED COPPER SULFIDES" pdf

... in the center of fractal followed by a series of nested squares of increasing sizes, l (length of the box). Next, the micrograph is manually digitized using "ones" and "blanks" ... presence and absence of the particle. Then, the number, N (ones), of particles within each square of different sizes, l, are counted. The fractal dimension, D is obtained from the slope of the ... (a) TEM micrograph of copper sulfides exhibiting fractal structure and (b) a plot of log10 N against log10 l Figure 9: SEM micrograph of copper sulfides Journal of Physical Science,...

Báo cáo vật lý: "Synthesis and Characterization of Bismuth Tantalate Binary Materials for Potential Application in Multilayer Ceramic Capacitors (MLCC)" doc

... Synthesis and Characterization of BiTaO4 54 conductors, catalysts, band-pass filters, radio frequency applications and others.1–5 The interesting properties are anticipated at the helm of bismuth ... Figure 9 shows the plots of real part of complex permittivity of BiTaO4 ceramics as a function of sintering temperature. The εr increases appreciably with the increase of temperature. The temperature ... spectroscopic plots of the imaginary components of the impedance (Z'') and electric modulus (M''), as shown in Figure 7. The frequency maxima of Z'' and M''...

Tài liệu Báo cáo Y học: Antibacterial and antifungal properties of a-helical, cationic peptides in the venom of scorpions from southern Africa pptx

... inhibition of growth of N. crassa and ﬂuorescence of SYTOX greencould be observed (Fig. 5B). Similar results were obtainedfor all combinations of peptides and fungi. This suggeststhat inhibition of ... most active,inhibiting 50% of growth of N. crassa and F. culmorum at aconcentration of 0.8 lM(3.9 lgÆmL)1) and having an IC50 of 2 lM(9.7 lgÆmL)1) for growth of the yeast S. cerevisiae.F. ... LPS of Gram-negative bacteria, enabling the disruption of the outermembrane and facilitating the interaction of the toxin withthe inner membrane. In the presence of high Mg2+ions, theMIC of...

Báo cáo khoa học: Spectroscopic and kinetic properties of the horseradish peroxidase mutant T171S Evidence for selective effects on the reduced state of the enzyme potx

... NdeI and BamHI and ligated into the expression vector pFLAG1 at the uniqueNdeI and BglII sites.Expression of HRPC in E. coli W31110, isolation of inclusion bodies, refolding and puriﬁcation of ... modes of the propionyl and vinyl substituents of the haem.Class III peroxidases normally exhibit only oneFe-Im band, in contrast to the class I and II peroxidasesthat have two Fe-Im bands resulting ... a signiﬁcant impacton the properties of His170. The strength of the hydro-gen bond between the proximal His and Asp residues, and thus the imidazolate character of the His is expec-ted to...

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