... early as 1934 that the application of ultrasonic energy could increase the rate of electrolytic water cleavage The effects of ultrasonic radiation on chemical reactions are due to the very high temperatures ... that of Pt4+/Pt (0.742 V [18]) Table1.Chemical composition, magnetic propertiesofthe samples J is the current density; ton is the deposition time of a pulse; Fe, Pt are the atomic percent of ... [21] The broad peak onthe DSC trace in the FePt nanoparticles suggests that there was no such transition in the FePt nanoparticles upon annealing The formation ofthe L10 FePt phase was N.H Luong...
... during the course of preparation cannot be excluded, but that still leaves unanswered the question of how the addition of micromolar concentrations of NADPH suffice to drive the conversion of PORPChlide635 ... isolate the contribution ofthe pH-driven conformational changes from the other effects, a parallel study was carried out onthe low-pH induced blue shift in the PChlide absorption maximum of nonphotoconverted ... seen, if the measurements onthe photoconverted enzyme were made in the absence of excess NADPH Under these conditions, the absorption maximum ofthe freshly photoconverted Chlide shows the usual...
... wheel, the longer path The increasing speed ofthe wheel make the thickness of ribbons thinner and the ratio between the area and volume ofthe ribbons that contact with the surface ofthe wheel ... plot ofsample v = 30 m/s, the first peak (a) and the second peak (b) Tab The thickness, t, the crystallization activation energies, Ea1 and Ea2, and the crystallization volume fraction, Xf, ofthe ... corresponds to the crystallization of α-Fe(Si) phase and the second one is related to the forming of boride phase (Fig 2) When increasing cooling rate, the first peak (Tp1) and the second one (Tp2)...
... discussion The mechanism of formation of particles was understood as a short single burst of nucleation occurred when the concentration of constituent species reached critical supersaturation Then, the ... diffusion of solutes from the solution or/and aggregation of other nuclei to their surface until the final size was attained In conventional coprecipitation, size (d) can be controlled by concentration ... indicated that the particles have the invert spinel crystalline structure as in the bulk phase The width of peaks ofthesample with higher concentration was broader than that ofthe peaks of sample...
... than the change of n values The differences of n values in UV or IR range may be due to the variation of dielectric functions ofthe films depending upon the deposition parameters The change of ... increased The samples were deposited at kW without additional oxygen The electrical propertiesofthe samples were shown in Fig 5c The k values ofthe samples showed more change by varying deposition ... additional oxygen gas The deposition power was kW The optical constants ofthe samples were not measured, but higher electron concentration may result in higher extinction coefficient and adsorption...
... interaction The other type of excitations can be derived using the random phase approximation, corresponding to summation of “bubble” diagrams These excitations, called magnetoplasmons, are analog of ... elementary excitations in the system are caused by electron transitions from one ofthe filled Landau levels to one ofthe empty levels [14] Such transitions can be observed in cyclotron resonance or Raman ... eigenvalues ofthe full Hamiltonian of relative motion ′ H ′ = H0 + V ′ in the basis ofthe bare magnetoexcitonic states (11) As discussed in the Introduction, a relative strength ofthe Coulomb...
... Correlation ofthe dipole moment µ with the Hammett σ constants ofthe substituents It is evident from the table II that electron-donating substituents onthe phenyl ring increase the pKa of aniline’s ... Also, the pKa ofthe amino nitrogen is increased by electron-donating substituents The variations ofthe three properties are closely tied together Hammett σ constants which used as regression indicator ... Fugure Correlation of QN with the Hammett σ constants ofthe substituents According to the table 2, electron-donating substituents decrease the dipole moment of compounds and electron-withdrawing...
... present the chemical composition ofthe organic and inorganic components ofthe waste paper The addition of fillers, which serve to reinforce the foam, significantly increased the value ofthe compressive ... Figure 3: The effect of filler content onthe hardness of PS foam produced with and without a TEDA catalyst CONCLUSION The effect of TEDA as a catalyst and waste paper filler content onthe mechanical ... the aid ofthe peak pointer ofthe durometer, which indicates the maximum indentation reading during the measuring period RESULTS AND DISCUSSION TEDA was used as the catalyst in the production...
... present thesis was based onthe last ofthe above mentioned techniques to improve the DSSC, i.e to improve the photon-electron conversion in the visible region, in particular by the incorporation of ... conventional silicon solar cell, the excited electron is successfully separated from the hole by a p-n junction The junction region is depleted of both electrons (on one side) and holes (on the ... discussion in the previous chapters, the conclusions focus onthe explanation of photocurrent damping seen for Au/TiO2 composite films in the UV region and onthe role of Au particles in the photon-electron...
... Investigate the effect of magnesium addition onthe incorporation of Al2O3 and propertiesof Al/Al2O3 composite (d) Phase IV – Investigate the effect of reinforcement size onthe resultant propertiesof ... Investigate the effect of extrusion temperature onthe microstructure and propertiesof pure Al (b) Phase II – Investigate the effect of extrusion ratio onthe microstructure and propertiesof pure ... particles together These organic binders often leave residual contamination that causes deterioration ofthe mechanical propertiesofthe composite The other disadvantages are the: (a) inherent...
... Journal of Science: Mathematics – Physics, Vol 31, No (2015) 15-20 Experimental The synthesis of FePt nanoparticles was conducted by sonochemical reaction The mixture of H2PtCl6 and iron (II) ... VNU Journal of Science: Mathematics – Physics, Vol 31, No (2015) 15-20 Effect of Heat Treatment Conditions onthePropertiesof FePt Nanoparticles Produced by Sonochemistry Truong Thanh Trung1, ... Oe The low value of Ms ofthe as-prepared nanoparticles may be explained by the oxidation or hydroxidation of Fe atoms in nanoparticles which can result in the weak magnetic iron oxides and iron...
... Journal of Science: Mathematics – Physics, Vol 31, No (2015) 15-20 Experimental The synthesis of FePt nanoparticles was conducted by sonochemical reaction The mixture of H2PtCl6 and iron (II) ... Oe The low value of Ms ofthe as-prepared nanoparticles may be explained by the oxidation or hydroxidation of Fe atoms in nanoparticles which can result in the weak magnetic iron oxides and iron ... as-prepared sample Particles size ofthe as-prepared Fe60Pt40 sample was 3-5 nm Figure TEM image ofthe as-prepared Fe60Pt40 nanoparticles Figure shows the X-ray diffraction (XRD) pattern ofthe as-prepared...
... O-C bonds [13, 15] The appearance of siloxane bonds was indicative of a polysiloxane depositing onthe filler, whereas the alkoxysilane bonds seemed to confirm the occurrence of a condensation ... study mainly focused onthe influence of filler treatment onthepropertiesof rHDPE/NR/KP biocomposites Figure depicts the effect of silane treatments onthe tensile strength ofthe composites APTES ... of KP was mixed with 95 mg of potassium bromide and pressed to form pellets FTIR was performed onthe pellets to obtain the information onthe chemical modification of KP Tensile Properties The...
... the variation of crystallinity with respect to the position in the sample, we have taken X-ray diffraction patterns at depths of d ¼ 0:2 and 0.4 mm beneath the surface ofthe samples The results ... rotation of domain moments From Fig and from the thermomagnetic measurements at low field we derived the composition dependence ofthe magnetic characteristics ofthe samples as presented in Table One ... compositions The DSC curves of all samples have been determined The samples with lower Ti content show an exothermic peak associated with crystallization With increasing Ti concentration the crystallization...
... (1) contribute to the hard-magnetic propertiesofthe studied ferrites Measurements ofthe electrical propertiesofthe samples show that the decrease ofthe specific resistance in the doped sample ... 4f1, 4f2 positions This leads to an increase ofthe total magnetization This conclusion agrees with results from the temperature dependence ofthe saturation magnetization of these samples Fig As ... 8501C there is a thermal decomposition of SrCO3 and BaCO3 In this temperature region, the ferritization reaction is strongly enhanced Moreover, the temperature at which the ferritization reaction...
... development and the conclusion The very first part, the introduction, covers the background information such as rationale, aims, scope, and design ofthe study The second part, the main part, ofthe study ... for the two research questions, each question of both types ofthe survey questionnaires is intended to make a clear facet ofthe research questions Therefore, the survey questionnaire for the ... consult from their supervisors, the content ofthe subject matters drew the greatest attention of all the teachers, and teaching methods occupied the second rank with the approval of among 10 surveyed...
... integrals to derive the symmetric propertiesofthe q-Bernoulli polynomials By using the symmetric propertiesof p-adic integral on X, we can easily derive many interesting symmetric properties related ... Equations Acknowledgments The authors express Their sincere gratitude to referees for their valuable suggestions and comments This work has been conducted by the Research Grant of Kwangwoon University ... Kurt, “Further remarks on multiple p-adic q-L-function of two variables,” Advanced Studies in Contemporary Mathematics, vol 14, no 1, pp 49–68, 2007 L.-C Jang, On a q-analogue ofthe p-adic...
... effect onthe contact angle value Explanations ofthe limited effect of extractives onthe ASE and θa values is probably due to the difficulty to remove these latter one from solid wood as demonstrated ... quantify these latter, namely the direct method based onthe weight ofthe extracts after evaporation ofthe solvent and the indirect method based onthe mass loss of sawdust, give very near results ... the diameter ofthe colony estimated from the mean of two perpendicular diameters and expressed as a percentage ofthe room available for growth, i.e the diameter ofthe dish Growth inhibition...
... vertices, which is the main result ofthe paper The organization ofthe paper is as follows In the rest of this section we introduce basic notations In Section 2, we verify the conjecture for all ... partitioned into at most c subsets so that each ofthe subsets is either a clique or an independent set, and between any two of them there are either all possible edges or none of them The factorial ... 0, and the index ofthe class of all graphs equals infinity With this extension, the family of all hereditary classes is partitioned into countable number of subsets each of which consists of classes...