The A.C. impedance techniques and its physical model to determine the changes of microstructure in the process of cement hydration in situ were introduced. The relationship between the parameters in model and microstructure and the progress of experiments in this field were also reviewed.关键...
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The impedance parameters were studied using an impedance analyzer in a wide range of frequencies (10<sup class="a-plus-plus">2</sup>–10<sup class="a-plus-plus">6</sup> Hz) at different temperatures (28–500 °C). Nyquist plot reveals the presence of bulk effect only. The bulk ...
Hence, setup parameters such as the distance between the magnets, and sweep parameters such as amplitude and frequency of the current signal must be chosen carefully to prevent the winding from hitting the magnets. Also, the winding motion not being exactly reproducible over multiple cycles causes ...
We use the measured parameters from the SHG experiment for the ω0 and Ω0 modes, and assume that the other modes are spaced by the measured FSR (which agrees with the theory prediction) and have the same quality factors. The resulting spectra for are shown in Fig. 6. We then perform ...
Also, response surface methodology was implemented to optimize the parameters. According to data analysis and based on transesterification process optimization, the maximum yield of biodiesel production (98.75%) was attained at 40.3 min, 72.9 °C, methanol to oil molar ratio of 18.65:1, and ...
One more useful measurement and identification method for common-mode chokes is proposed to analysis frequency-dependent impedance and parasitic parameters information within the balanced frequency range. Equivalent circuit for common-mode chokes is established according to the reciprocal and symmetric physical...
Find the parameters describing the jitter for a given clock source. For a PLL, this will be the sum of the following parameters, all of which should be found on the PLL datasheet The base period jitter of the PLL Period jitter due to power supply noise. This power supply noise can incl...
(3) Print parallel helical-structured Ag ink electrodes on the TPU fibers by self-built DIW printing equipment with different parameters. At the same time, a heating platform with a distance of 1 cm was used to quickly dry the Ag ink at 80 °C, and then the sample was further ...
Observation of surface Andreev bound states of superfluid 3He by transverse acoustic impedance measurements. Phys. Rev. Lett. 95, 075301 (2005). Article ADS CAS PubMed Google Scholar Zheng, P., Jiang, W., Barquist, C., Lee, Y. & Chan, H. Anomalous damping of a microelectromechanical ...