Báo cáo hóa học: " Ferroelectric properties of PZT/BFO multilayer thin films prepared using the sol-gel method" ppt

... micrographs of PZT/BFO multilayer thin films. Cross section of the (a) PZT/BFO/ PZT/BFO, (b) PZT/BFO/ PZT/BFO/PZT, and (c) PZT/BFO/ PZT/BFO /PZT/BFO films and surface morphologies of the (d) PZT/BFO/ PZT/BFO, ... dielectric loss of PZT/BFO multilayer thin films as a function of applied frequency. Figure 4. P-E hysteresis loops of PZT/BFO multilayer...

Ngày tải lên: 20/06/2014, 23:20

... construct the inverse of the free energy as the minimal surface of the Wulff-construc- tion to the shape of 1/r(h) : first, we identified the ‘Wulff point’ of the NC as the intersection point between the perpendicular ... confirmations of the model were presented [23]. This model is based on the knowledge of the surface (or interface) free energy of the NC...

Ngày tải lên: 22/06/2014, 01:20

... know the sensitivity of the mass sen- sor. The sensitivity of the sensor is defined as the ratio of the variation of the frequency shift to the variation of the attached mass. Figure 5 shows the ... with that of the sensor. In addition, the location of attached mass can influence on the changes in frequency of the mass sensor. Figure 4 illustrates th...

Ngày tải lên: 21/06/2014, 07:20

... discussion The structures of TiO 2 thin films were characterized by XRD using Cu Kα radiation at 30 kV and 40 mA. Figure 1 shows the XRD patterns of the TiO 2 thin films as a function of the precursor ... the amorphous phase of the TiO 2 thin films on the glass substrate at 400°C exists up to the precursor temperature of 60°C. The anatase phase...

Ngày tải lên: 21/06/2014, 17:20

... vibration. F ult is responsible of the ultrasonic deflection (or UFM response) of the cantilever. In the presence of ultrasound, due to the nonlinearity of the tip-sample force, the tip moves from an initial ... These results demonstrate that a power increase at the cathode has only a subtle influence on the change of preferred orientation in the coatings. The surf...

Ngày tải lên: 22/06/2014, 00:20

... coefficient are restricted to the null hypothesis of zero correlation, not to the strength of the correlation, the magnitude of the correlations between the Sleep Quality Scale and the MOS Sleep Scale ... health-related quality of life, depression, and cogni- tive difficulties [4]. Assessing the effectiveness of new ther- apies therefore requires accurate assessment...

Ngày tải lên: 18/06/2014, 18:20

... scores. Responsiveness Responsiveness of the DHI-N was supported, as the hypotheses of correlations between change scores of the DHI-N versus the VSS-sf-N total, as well as the COOP/ WONCA sum, were confirmed. However, the hypotheses of ... outstanding discrimination. The best cut- off point of scores was identified, where the sum of the percentages of misclass...

Ngày tải lên: 18/06/2014, 19:20

... essential to examine the measuring properties of the instruments used in the evaluation of health status or HRQOL for the interpretation of the results and for the best applicability of these instruments ... representative of the child or of the patients with developmental disor- ders has the advantage of providing further information about the health condi...

Ngày tải lên: 18/06/2014, 19:20

... toxicity of chemotherapy or the isolation to which the individual is subjected [9,15]. The analysis of the correlation between the scores the chil- dren/adolescents obtained and those obtained by the guardians ... hospitals of the city. A total of 190 families of Bra- zilian children between the ages of 2 and 18 years, of both genders, with malignant neoplasm i...

Ngày tải lên: 18/06/2014, 22:20