While applying similarity transforms to annihilate elements of coupling matrix, why the previously annihilated elements are affected?

i want to annihilate cross-pivot elements of coupling matrix by using similarity transforms. while doing this, the previously annihilated elements are affected. In this case how to proceed with...

02 March 2018 5,222 0 View

How to find the topology for determining coupling matrix for a low pass filter with transmission zeros at finite frequencies?

I have an elliptic low pass filter of order 5. it gives three transmission zeros at finite frequencies. i want to arrive at the coupling matrix for this filter. how to determine the topology for...

01 February 2018 1,888 6 View

How to optimize the coupling matrix of a bandstop filter?

Thanks in advance

10 November 2017 7,203 0 View

How to find the transmission zeros from s parameter characteristics?

06 July 2016 516 0 View

Implementation of PML to microstrip line with FDTD?

while applying FDTD to a microstrip line , how to do with PML conditions. how to consider with equations at the edges of the strip? in sullivan , g(i,j,k)1..2..3 are considered for the normal...

03 April 2016 1,843 1 View

How to correct the error in surf command in matlab?

i am getting the following when i run a matlab code: Error using surf (line 57)While setting the 'ZData' property of Surface:Value must be a scalar, vector or array of numeric type can anybody...

03 April 2016 6,448 3 View

Is anybody working in the area of method of lines computational method to analyse waveguiding structures?

Computational Electromagnetics

31 December 2015 3,889 6 View

Does anybody have idea of how to model any electromagnetic wave guiding structures?

conditions to be considered for modeling a wave guiding structures, how to write matlab codes for modeling, assumptions to be considered for modeling an electromagnetic wave guiding structure

11 December 2015 7,646 0 View

Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

Any Homemade Organic Synthesis Practices?

Hi everyone, I am a teacher of Heterocycles Synthesis, Is there a home practice that you recommend for undergraduate students? A simulator would also be useful Due to the pandemic, students...

18 February 2021 2,769 4 View

How to predict the reaction pathway for electro organic synthesis?

Can anyone recommend some any software/models available that can predict substance reactivities and the reaction yield under a specific set of reaction conditions process and proposing pathways to...

17 February 2021 2,383 3 View

Has anyone encountered any problems with abm good microRNA primers for quantification of mature miRNAs?

I've been trying to quantitate mature microRNAs in 293T cells with and without 'X'. 2ug of total RNA (isolated by Trizol method) is converted to cDNA using All-in one microRNA cDNA synthesis kit...

17 February 2021 8,986 2 View

How can you tell if your organotypic slice culture is healthy ?

I'm working on organotypic cerebellar slice cultures from postnatal rats and I'm not sure how to tell if the slices are healthy at any given point. I know there should be a lot of microglial...

15 February 2021 2,830 2 View

How to measure acetic anhydride solution with 18M sulfuric acid?

I am doing research on the synthesis of paracetamol. I am preparing acetic anhydride solution with a few drops a sulfuric acid and wish to measure the pH of this solution. However my pH meter...

14 February 2021 8,699 3 View

Reaction condition to convert NH2 to COOH?

I need to couple Dopamine by NH2 end to silica nanoparticles coated by PEG-NH2, but first i need to convert the PEG-NH2 to COOH by using succinic anhydrous ... can you suggest a reaction condition ?

13 February 2021 2,768 4 View