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frequency dependent dielectric relaxation

Structural, Dielectric Relaxation and Electrical Characterization of CaNb2O6 Phase Pure Material

Structural, Dielectric Relaxation and Electrical Characterization of CaNb2O6 Phase Pure Material

... the frequency dependent conductivity lies in the relaxation phenomenon arising due to mobile charge ...low frequency dispersion thus is associated with ac conductivity whereas almost ...

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Frequency and Temperature Dependent Dielectric Relaxation Studies of Paracetamol in the Dilute Solution of Carbon Tetrachloride

Frequency and Temperature Dependent Dielectric Relaxation Studies of Paracetamol in the Dilute Solution of Carbon Tetrachloride

... The values of the dipole moments 20-21 of different samples are found to decrease with temperature which can be seen from the above tables. The decrease in the dipole moment may be due to the decrease in the size of ...

6

Behaviour of Dielectric Properties of Soil of Northeast Region of Nasik with Variation of Moisture Content

Behaviour of Dielectric Properties of Soil of Northeast Region of Nasik with Variation of Moisture Content

... influenced dielectric properties of soils such as moisture contentin the soil, frequency and ...onits dielectric and hence emissive properties at microwave ...because; relaxation ...

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Miscibility Behavior of Poly Ethylene Glycol or Poly  Ethylene Succinate/Chlorinated Poly Vinyl Chloride Blends Studied by Dielectric Relaxation Spectroscopy

Miscibility Behavior of Poly Ethylene Glycol or Poly Ethylene Succinate/Chlorinated Poly Vinyl Chloride Blends Studied by Dielectric Relaxation Spectroscopy

... using dielectric relaxation spectroscopy (DRS) over frequency and temperature ranges; 10 kHz - 4 MHz and 300 - 450 K, ...Three relaxation processes namely ρ-, α’-, and α-relaxation ...

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Dielectric relaxation and frequency dependence of Hf02 doped by lanthanide elements

Dielectric relaxation and frequency dependence of Hf02 doped by lanthanide elements

... of dielectric relaxation, which agrees with fact that the slop of the real part ε' to frequency is dependent on parameter ...higher frequency value as the values of tau ...

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Structure and dielectric properties of sol gel processed Ba (Fe1/2Nb1/2) O3 ceramics

Structure and dielectric properties of sol gel processed Ba (Fe1/2Nb1/2) O3 ceramics

... morphology. Dielectric measurements revealed a diffuse ferro-to-paraelectric phase with relaxor character; the latter was studied and confirmed by the modified Ushino’s ...the frequency dependence of the ...

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Effect of Fe Substitution on the Structural, Electrical and Dielectric Properties of La0 70Ca0 30MnO3 Cathode for SOFCs

Effect of Fe Substitution on the Structural, Electrical and Dielectric Properties of La0 70Ca0 30MnO3 Cathode for SOFCs

... versus frequency plot with increase in temperature shows that samples exhibit temperature dependent relaxation ...of relaxation may be due to immobile electrons and in higher temperature ...

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Characterization, AC Impedance Study and Dielectric Properties of Chemically Synthesised Poly Para-Toluidine

Characterization, AC Impedance Study and Dielectric Properties of Chemically Synthesised Poly Para-Toluidine

... The frequency dependent electrical parameters, such as impedance, AC conductivity, dielectric constant, dielectric loss, and electric modulus for PPT, have been studied within the range of 20 ...

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Study the Frequency Dependence of Dielectric Properties of Gamma Irradiated PVA(1 x)PSx Polymer Blends

Study the Frequency Dependence of Dielectric Properties of Gamma Irradiated PVA(1 x)PSx Polymer Blends

... In recent years the effects of gamma radiation on polymers have been investigated by a number of researchers [1]-[4]. Gamma ray ( γ -ray) irradiation becomes an advanced approach to optimize the physical properties of ...

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Dielectric measurement of azadirachta indica (bark) at 9 85 ghz frequency

Dielectric measurement of azadirachta indica (bark) at 9 85 ghz frequency

... different grain sizes and temperature showed that, there is simultaneous increase in dielectric constant (ε') and loss factor (ε") with increasing temperature. This was expected, because with higher values of ...

5

Study on Correlation Coefficient of A. C. Conductivity and Relaxation Time of Soils with Moisture Content at 5.3 Ghz

Study on Correlation Coefficient of A. C. Conductivity and Relaxation Time of Soils with Moisture Content at 5.3 Ghz

... the dielectric (soil) gives rise to the conduction current and hence polarizes the ...This dielectric polarization is thus found to increase with the MC level of ...the dielectric attenuation/loss. ...

6

Orientation polarization from faster motions in the ultraviscous and glassy diethyl phthalate and its entropy

Orientation polarization from faster motions in the ultraviscous and glassy diethyl phthalate and its entropy

... ␤ relaxation, generally. To elaborate, struc- tural relaxation of a glass has been shown to decrease the height of the ␤ -relaxation peak, 16,29 the ⌬ ⑀ ␤ , 16,29 and the en- ...structural ...

9

Dielectric relaxation of high k oxides

Dielectric relaxation of high k oxides

... of frequency dispersion during C-V measurement in high- k thin film (shown in Figure 1), which were studied before validating the effects of k -value dependence, were parasitic effect, lossy interfacial layer, and ...

12

Cardiac force frequency relationship and frequency dependent acceleration of relaxation are impaired in LPS treated rats

Cardiac force frequency relationship and frequency dependent acceleration of relaxation are impaired in LPS treated rats

... heart frequency changes during echocardiography were achieved by increasing doses of volatile anaesthetics, which may alter calcium cycling and myocardial function ...

10

Structural and Dielectric Studies of Gd Doped ZnO Nanocrystals at  Room Temperature

Structural and Dielectric Studies of Gd Doped ZnO Nanocrystals at Room Temperature

... to dielectric constant, dielectric loss also decreases with increase in frequency and becomes constant at higher ...frequencies. Dielectric loss arises when the polarization lags behind the ...

10

Dielectric Studies on Benzothiazole Based Liquid Crystals at Radio Frequency Region

Dielectric Studies on Benzothiazole Based Liquid Crystals at Radio Frequency Region

... coefficient dielectric constant stability was noticed rather at low frequencies in both compounds which are shown in figure ...and dielectric constant values the results produced by   as a function of ...

8

Microscopic models for dielectric relaxation in disordered systems

Microscopic models for dielectric relaxation in disordered systems

... the relaxation behavior appears [7] as a super- position of Cole-Cole equations if the inertial effects are ig- ...of relaxation times not all of which have the same probability of ...various ...

11

Microwave Dielectric Measurements of 4-Nitroacetanilide at Different Temperatures in Carbon Tetrachloride Solution

Microwave Dielectric Measurements of 4-Nitroacetanilide at Different Temperatures in Carbon Tetrachloride Solution

... the dielectric relaxation process and viscous flow process behaves as a rate ...investigate dielectric properties and relaxation process of 4-Nitroacetanilide in the dilute solution of carbon ...

6

Intermolecular interactions and protein dynamics by solid state NMR spectroscopy

Intermolecular interactions and protein dynamics by solid state NMR spectroscopy

... that relaxation rates in the solid state are sensitive to motions spanning nine orders of magnitude in terms of time scale (this enhanced range of sensitivity compared to the solution case is related to the lack ...

7

Bizjak, Tanja
  

(2004):


	Ultrafast photoinduced intra- und intermolecular charge transfer and solvation.


Dissertation, LMU München: Fakultät für Physik

Bizjak, Tanja (2004): Ultrafast photoinduced intra- und intermolecular charge transfer and solvation. Dissertation, LMU München: Fakultät für Physik

... The femtosecond UV-visible broadband absorption study of indole is considered here for the first time together with the steady state measurements in order to clarify the unusual be- havior of a strong fluorescence and ...

149

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