Search results

The average crystalline size of SrFe12O19 and SrCoFe11O19 ferrites were estimated from XRD data using the Debye-Scherer’s formula using the strongest diffraction Bragg peak (114).
The Co-substituted strontium hexaferrite caused the reduction of Hc and Mr.
In addition, larger grain size also contributed to the reduction of coercive force.

Introduction The continuous reduction of the device dimensions in ULSI technology is limited by the capacitance effect coupled with the line resistivity (RC).
Thickness and refractive index of the deposited films have been deduced from ellipsometric data using Sopra GES-5 spectrometer in the range of 0.25- 2 µm. the electrical measurements have been carried out on MIM (Metal-Insulator-Metal) structures, elaborated by evaporating aluminum electrodes on a-C:H films deposited on the metallized glass substrates.
This phenomena leads to the hydrogenation of the film mainly on C=C double bonds explaining in consequence the reduction of the Csp 2 concentration when the plasma power increases.

Data used here were intended to show the shifts between baseline (healthy state), before crack appeared (100,000 cycles) and after crack appeared (104,000 cycles). 0 0.0002 0.0004 0.0006 0.0008 0.001 40 45 50 55 60 f (kHz) G (S) Baseline 100k 104k (viewable crack) Figure 3: Conductance signatures versus frequency (40 - 60 kHz) for second specimen before and after appearance of crack. 0 0.00005 0.0001 0.00015 0.0002 44.8 45 45.2 45.4 45.6 45.8 f (kHz) G (S) Baseline 100k 104k (viewable crack) Figure 4: Conductance signatures versus frequency (44.8 - 45.8 kHz) for second specimen before and after appearance of crack.
Increase in number of cycles was reflected through progressive reduction in resonant frequency.
The rate of reduction was lower before a crack was found and higher thereafter.

Firstly the total mixture flux is kept as a fixed data, mixture for different inlet flow rate, and on the basic of which, the fluxes of hydrogen and oxygen are respectively adjusted to observe mixture combustion in the micro combustor and research change of temperature distribution on the wall of micro combustor.
Fig.2. the wall temperature of micro combustor Fig.3. the wall temperature of micro combustor when flux of mixed gas is 1.2g/h when flux of mixed gas is 1.68g/h Fig.4. the wall temperature of micro combustor when flux of mixed gas is 2.24g/h When mixture ratio is more than 2, with relative reduction of oxygen flux, hydrogen can not been burned in the micro combustor.
With the mixture ratio increasing and the reduction of oxygen, the amount of hydrogen will also decrease in the combustor, making micro combustor in the same location on the surface temperature gradually decreased (Fig.4, 5, 6).

The data are consistent with the earlier studies [3] which confirm deposition of PEDOT on FTO glass.
Reduction potential, oxidation potential and energy levels of DSSC components.
Material Reduction potentials (V) Oxidation potentials (V) ELUMO (eV) EHOMO (eV) TiO2 (Degussa, P25) - - -4.2 [5] -7.6 [5] N719 -0.285, -0.627 0.913, 0.853 -4.0 -5.3 I-/I3- 0.279, -0.023 0.652, 0.511 -4.6 -5.0 PEDOT - 0.562, 0.059 - -4.8 From the energy level diagram in Figure 4 it is clearly illustrated that under illumination, the excited electron injects from N719 to conduction band of TiO2 and then moves to FTO glass and passes through external load to the counter electrode.

Observation values of speed and headway on the disparate pattern ice and snow pavements urban roads Characteristic parameters Ice and snow-melted pavement Part snow-pressed pavement Snow-pressed pavement Usual pavement Headway[s] 3.71 4.73 4.03 2.66 Speed[km/h] 27.06 22.06 23.55 40.10 Speed reduction percentage[%] 32.52 44.99 41.27 - Note: Observation sites were never changed in order to make the data comparability.
Under ice and snow condition, road environment becomes monotonous, and sunlight reflected by snow results in the reduction of driver’s vision, the cause fixation point moved forward and dropped visual field in different degree.

The values of total porosity of the aged cements reported in the same Table 1, suggest a close relationship between the improvement of the mechanical properties and the reduction of the total porosity recorded on increasing gelatin content.
The data support the hypothesis that porosity is a key factor for the control of the mechanical properties of cements [8,9].
Title of Publication (to be inserted by the publisher) the control cement, in agreement with the reduction of the total porosity of the cements induced by the presence of gelatin.

The management of construction sites has become increasingly necessary, identifying the waste generated and ways to minimize this generation. [5] The aim of this research consists in evaluating a construction site and the activities toward fulfilling sustainable management of construction waste, thereby targeting the reduction, reuse and recycling of materials.
Data were elaborated through a check-list, with the environmental management consultant firm, to analyze the advantages and disadvantages of doing business in waste recycling and also as being made final disposition of these materials.
Conclusions Based on the case study, the final results showed that environmental management on a construction site is positive in all aspects, allowing a change of culture workers, an improvement in the image of the company, and especially a reduction in costs, showing that the continued implementation of the program is important for these results.

data and double-cosine fit also reinforces this proposition and is further strengthened by the good fit of the single cosine for the other peak.
For one given strain-vector, symmetry reduction leaves two equivalent sites that show the same response.
Upon further symmetry reduction, four peaks are observed [6], like in Stark-effect measurements which are sensitive to the polarity of the electric field.Summary In conclusion, we investigated the splitting of the TS photoluminescence lines under controlled mechanical strain.

A great number of systems and methods have been proposed to obtain composite materials for functional and structural applications, for example: - high-density Ni-Co alloy/Al2O3 composites have been obtained via hydrogen reduction and hot pressing of Al2O3, Ni(NO3)2⋅6H2O and Co(NO3)2⋅6H2O mixed powders [1]
- Ni powders were coated with ZrO2 through a high pressure hydrogen reduction process [6].
Table 1: Composition of innovative composite powders produced Powder Metal Powder coated Metal:alumina Weight ratio Alumina volume % C7 304L 5:1 28% C6 304L 10:1 15% C3 304L 3:1 40% C2 304L 1:1 67% All composite powders were characterised by XRD analysis (modernized DRON 2 diffractometer connected to a computer for automatic data processing), chemical quantitative analysis (ICP, DCP, AAS), and optical microscopy (AMPLIVAL POL U- mineralogical microscope with polarised light; EPIQUANT- metallographic microscope with polarised light).