Why permittivity of a material decreases with an increase in frequency of the voltage source?

I am lottle bit confused about that how permittivity of a material decreases with an increase in frequency of the voltage source? Kindly, explain this concept with some example or mathematical. Thanks

03 April 2019 8,107 6 View

Now, I am working on RFID based biomedical sensors. Can any body provide some useful data about this topic?

Basically, I want to design RFID based bio sensors. These sensor find out body temperature, heart rate, respiration level (SpO2). kindly, share some papers or data which help me in this field. I...

09 October 2018 9,078 0 View

White Gaussian Noise PSD is fixed No/2. So how we can investigate that noise variance is average power of the noise?

Prove the above statement in suitable way. Thanks

02 March 2018 6,646 0 View

How we can improve power factor, when load connected with induction motor?

As we know initially PF in case of induction motor is lower, but after some time PF becomes improve. Can any one explains that how we can improve the PF instead by using the parallel capacitor bank?

02 March 2018 7,741 5 View

I want to simulate OFDM in matlab by using the BPSK technique. can any one helpout?

Total bits which I want to transmit are 128. It means channel length is 128. cyclic period bits are 8.

11 December 2017 585 0 View

How we find frequency response of the signal?

can any on help me that how can i find the frequency response of the given signal? The required signal image is given below.

09 October 2017 8,560 2 View

Can any one provide me Wind Turbine Free CAD design files?

07 August 2017 9,431 6 View

Can Any one tell me the correct answer with solution or tech about attached picture question?

07 August 2017 5,706 3 View

Kindly, tell me that how can find out the switching angles for 7 level H bridge inverter by using half hight method?

02 March 2017 5,096 1 View

By using Half Height method, I have calculated the main switching angle. How can calculate other switching angles by using these main angles.

the code for main switching angles are attach below.

02 March 2017 4,692 0 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

Treating Intermediate Variable in Linear Regression Analysis in SPSS?

While performing the Linear regression analysis in SPSS version 26.0.0. my intermediate/mediation variable goes to the excluded section. Please share your valuable suggestion "How to restrain the...

25 February 2021 4,591 5 View