Use of Sine voltage source in Electrical circuit with frequency domain study in COMSOL?

Dear Sir/Madam I want to use Sine voltage as a source in an RLC circuit. I want to study the driving point impedance with frequency sweep. But when I use sine voltage, I get an error like The DAE...

13 January 2021 9,826 5 View

How to find Inverse Laplace of a large matrix in MATLAB?

I am trying to find out the inverse Laplace transform of the state transition matrix obtained using inv(S*I-A). Where I is the identity matrix, and A is a state-space matrix(24x24 matrix). I have...

21 December 2020 7,041 3 View

Why does not graphene exist as a proper 2D sheet?

We know that graphene is the strongest material as it has high tensile strength. Then why does it exist as flakes? Why we cannot make a complete sheet out of graphene?

18 May 2020 8,820 4 View

What are the initial values of different ion concentrations?

What are the initial values of different ion concentrations(Electron,+ve and -ve) should be taken while simulating the partial discharges between different electrodes(point-plane, point-...

11 March 2020 6,325 4 View

How to separate r and s isomers of tetrahydrofuroic acid by normal phase chromatography?

I want to separate the r and s isomers of the tetrahydrofuroic acid by normal phase chromatography.i have taken many trials on many columns such as chiralpakADH CHIRALCEL OJ-H many chiralpak...

20 December 2019 2,093 1 View

How to separate the diastereomer peak from main peak?

My diastereomer peak is coming just after my main peak and also the main peak has tailing in it and the diastereomer peak is comin with the tailing in reverse phase HPLC system.I have attached the...

18 June 2019 2,456 10 View

Has anyone seen any pellet after isolating exosomes by ultracentrifugation?

I have isolated exosomes from conditioned cell culture supernatants, but have not witnessed any pellet after two steps of ultracentrifugation. Is it normal or should I must see some pellets? Any...

21 April 2019 5,102 5 View

How to add/create antenna block in simulink(Matlab)?

please site 1-2 examples

14 March 2019 2,711 2 View

After keeping cells with serum free media for 16 hrs can we use these again for some experiments?

I am working on exosome isolation from conditioned media. I am using MC3T3-E1 cell line as the source. Before going for isolation, I used to keep the cells with serum free media for 16 hrs. Any...

07 February 2019 4,094 5 View

Is there any protocol or article for ROS assay from fresh TISSUE samples through fluorometric spectroscopy?

I did the ROS measurement from tissue sample via florescence microscopic method. To confirm my result I want to do through fluorometric spectroscopic method. Lot of articles are there regarding...

06 March 2018 6,799 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View