What is the analogue of a dielectric in magnetism?

Capacitors and dielectrics pertain electric phenomena, one could say that inductors can be considered analogues of capacitors in the magnetic case. Is there a dielectric analogue in magnetism?...

02 March 2019 8,302 5 View

How to implement tightly coupled nonlinear odes using ode45 in matlab?

I am solving a problem from fluid dynamics; in particular tightly coupled nonlinear ordinary differential equations. The following is a scaled-down version of my actual problem. I have solved...

10 November 2018 4,357 27 View

Unsolvable Nonlinear differential equations?

Could there be nonlinear ODEs that could not even be solved numerically? I am working on a third-order nonlinear problem which is giving accurate results for a given set of initial conditions...

10 November 2018 2,072 7 View

Solving second order (or even third order) nonlinear coupled ordinary differential equations using Fortran?

I have solved system of ODEs multiple times in the past. But for some reason this particular problem has made things difficult for me. See Eq.(7) of the attached file and its subsequent...

09 October 2018 10,082 8 View

Is planetary type motion possible only with an inverse square law type force?

Will there be planetary type motion possible if force varies linearly or cubically with distance? If a body is revolving around another body then can i say with total confidence that the body is...

08 September 2018 8,780 4 View

What is the difference between internal energy and kinetic energy for gases?

Some thermodynamics confusion. Assume ideal gases for simplicity. Are kinetic energy (K) and internal energy (U) for gases, different from one another? As I understand, dU = n Cv dt And if some...

11 December 2017 7,854 98 View

Measure of the "quality" of a curve-fit?

I am trying to fit an experimental dataset. The data is highly nonlinear and so I am using different mathematical expressions to fit the data. How do I "quantitatively" compare the quality of fit...

08 September 2017 1,910 5 View

Is Newton's third law applicable to the force of gravitation?

07 August 2017 8,035 11 View

Do vacuum and empty space imply the same?

1) Do vacuum and empty space imply the same? Can they be used interchangeably? 2) If a sealed "empty" box resting on a table is slided to another position, is the space if "encapsulated", also...

02 March 2017 736 12 View

Is there a measurement problem underlying special theory of relativity?

02 March 2017 263 9 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