How can we draw the graph of a function of complex variables involving two variables in Matlab?

Suppose the function is $f(z_1, z_2) = z_1^2+z_2^2$, where $z_1, z_2 \in \mathbb{C}$. How to implement the graph in Matlab in an given interval. Can anyone help?

11 January 2021 1,018 2 View

Implementing a non-local constraint in COMSOL Multiphysics?

I am trying to simulate a planar, high ohmic DC gas-discharge system. The model consists of a coupled set of equations, drift-diffusion for ions and electrons, and Poisson's equation in the gas...

07 December 2020 8,521 2 View

How to calculate rotation of brushless DC Motor using duty cycle?

Hi everyone, I am trying to model brushless DC Motor in Simulink. At one point, I am in need of the motor rotation and the only parameter available to me is the duty cycle and the direction of...

11 March 2020 1,240 3 View

SSVEP signals are not properly generated. What should be the idle condition for SSVEP signal recording?

I have created the scenario with 4 red LEDs flickering with different frequencies separated by minimum 20 cm (at the side of monitor). The selected flickering frequencies sets were (6.25, 6.66,...

07 May 2019 5,352 1 View

A 10:1 mixture of xylene and toluene provides a doublet at m/z 92 (the exact mass of xylene is 92.05813 and toluene is 92.06260). What res is req?

A 10:1 mixture of xylene and toluene provides a doublet at m/z 92 (the exact mass of xylene is 92.05813 and toluene is 92.06260). What resolution is required to separate these two (2) peaks? Which...

01 May 2019 8,900 1 View

How to classify a certain data have small, medium or high correlation?

I have time data of two variables namely speed and torque. I'm checking for correlation between them and the value I am getting right now is 0.39. Given the fact that the torque of an engine...

16 April 2019 7,384 3 View

How to determine maximum and minimum frequency of a time based data?

I have a measured quantity, X which varies with time. I want to do frequency analysis and find out the maximum and minimum frequency and at what time they occurs. I'm using Fast Fourier Transform...

21 March 2019 6,578 9 View

Can anyone help me to find the literature on matrix pencils arising in linear Quadratic optimal control problems?

I want to study the matrix pencils which occur during solving optimal control theory problems.

29 May 2018 2,035 2 View

Is dilation angle, eccentricity will be vary depending upon the grade of concrete????

please sent me for M30 grade

20 October 2017 8,014 3 View

How can I start research on Digital Image Processing?

I am very keen to do some research in the field of DIP and publish a paper on it. I am totally confused on how to start and where to start learning from. Kindly help me.

14 October 2017 433 3 View

Which isomer of xylene do you use in hystology ?

Which isomer of xylene do you use for the preparation of histological tissue sections - meta para or ortho?

02 February 2021 833 4 View

What defines the time it takes to disconnect a molecular switch?

I have been thinking about a material that was made 6 months ago, which is a tetramethylsiloxane linked to a thiazolidinedione and finally to a naphthalene, but I can't find the original paper (if...

30 December 2020 5,347 1 View

Is RID-20A(Refractive index detector) from shimadzu suitable for stepwise elution in HPLC?

I apply mobile phase stepwise elution in HPLC to separate glucose isomerization to desired fructose. However, I got unreasonable result showing reaction selectivity of fructose is larger than 1. I...

28 August 2020 3,278 3 View

Is there anybody in US have a Prep chiral Column to separate a racemic compound ?

I am looking for sombody in US who use a chiral prep column to separate a synthesis racemic H-tetrazol compound? I will send him the synthetic materials and the successful separation conditions...

16 August 2020 4,356 2 View

Am doing FITC coupling with APTES for FITC-APTES conjugate using ethanol as solvent. After 12h reaction, I got a precipitate, Is it normal?

I used FITC Isomer I and ethanol and APTES under argon. The precipitate is bright orange. I want to use this for synthesis of nanoparticles (dye conjugated) and the precipitate will not help in...

08 September 2019 2,138 2 View

What kind of isomerism shown by steroid?

I am looking for isomerism of steroids, can you share details, books, articles, reviews discussed on steroids isomerism in details Thanks Raj Kumar

08 September 2019 3,645 3 View

Can anyone share HPLC method for determining Cetirizine (HCl)?

Although, I have tried several methods for determining Cetirizine (HCl) but none of them were successful.

11 December 2018 3,901 4 View

Does considerable racemization of hyoscamine occur during the Soxhlet extraction process?

09 October 2018 9,781 1 View

How to confirm Leve and Dextro optical rotation of stereo isomer?

Currently, I'm working in stereo isomers. I have trying to synthesis stereo isomers. My problem is how can I confirm their optical rotation in experimentally. Please let me know if you have any...

09 October 2018 5,128 5 View

How to stabilize cis-oxyresveratrol ?

Normally oxyresveratrol found in trans form. But we can convert trans form to cis form by photochemical transformation. However the stability of cis form is too less. It can easily converted to...

08 September 2018 553 0 View