Can we calculate the "shielding effectiveness" from the "electrical conductivity" of polymer composite materials?

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Does anybody know the copy number pf pET28a plasmid?

I am looking for exact copy number of pET28a plasmid. A citation would be great. Literature search only shows that it is low copy vector, but I haven't found any papers that mention the exact copy...

26 February 2024 2,359 1 View

Is there a way to generate stereo-isomers (R and S) of a cyclic peptide ?

I am working with a cyclic peptide and I would like to generate the stereo-isomers of my peptide. The stereo-centers are present in the ring. Is there a way I can do it, other than manually...

31 August 2023 7,196 0 View

Equilibrating a system by applying restraints in namd ?

Hi researchers, Can anyone help me to find out how we could equilibrate a system(step by step) by applying restraints to a desired set of heavy atoms using NAMD ? Thank you, Krithika.

16 November 2022 4,776 0 View

I encountered a fatal error during simulation of ATP using NAMD and VMD. Could anyone please help me rectify ?

I was performing the equilibration and minimization of ATP in namd and vmd. This is the error message. FATAL ERROR: UNKNOWN PARAMETER IN CHARMM PARAMETER FILE top_all27_na.rtf LINE=** \\\\...

16 January 2022 7,634 21 View

How to edit .pdb of an ATP molecule using 'atomselect' in tcl ?

My .pdb file is of a solvated ATP. I was trying to change the (res)name in the .pdb TIP3W to TIP using atomselect in tcl. But something is not working. I am confused how to select "TIP3W". I...

22 December 2021 968 4 View

Solvating a system using namd and vmd, with desired water box dimension and desired number of water molecules?

How can I create a water box around our system with desired dimensions with desired number of solvent molecules around it (say a 50A x 50A x 50A cubic box containing 1000 water moleclues.) using...

26 July 2021 2,794 4 View

Does anyone have a gromacs 4.6 version ?

I am looking for an old gromacs version (v 4.6). I would be highly obliged if someone shares the tar files of the version. Thank you.

30 June 2021 8,534 3 View

How can we obtain an available force field parameter in GROMACS format?

While using pdb2gmx for ATP molecule, I encountered an error which shows, "Residue 'ATP' not found in residue topology database". So, I was trying to find force fields that natively supports ATP...

19 April 2021 8,664 5 View

Can we go for conjunctive use of canal water and groundwater through drip irrigation?

Are there any past studies undertaken in India on this aspect? Up to what EC we can use saline water in drip irrigation?

23 August 2017 9,861 3 View

How can I produce pure iron powder by electrolysis with minimum size?

pure iron powder by electrolysis

03 January 2016 6,332 1 View

Is it possible to manufacture polypropylene sheets using a biaxial process?

I know that films and other low-thickness laminated products are produced using biaxial orientation, but is there something similar for sheets with a thickness of around 6 mm? Or are they...

21 July 2024 1,559 1 View

Why am I seeing only one initial maximum in torque-time curves for the fusion of PVC in a Brabender?

We're studying the stability and fusion behavior of multiple PVC compounds in a Brabender. After a few trials, we set the temperature at 195 °C and the rotor speed at 70 rpm. Samples differ in...

12 July 2024 2,768 1 View

How to solve "1 elements have missing property definitions" in Abaqus?

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07 July 2024 10,036 5 View

What does the area under the curve signify in dielectric loss tangent studies for solid polymer electrolyte ?

In solid ceramic electrolyte what is the Physical significant of area under the curve in dielectric loss tangent studies ??

23 June 2024 4,354 1 View

Can anyone explain how mobile ions moves inside ploymer electrolytes?

I want to know the exact mechanism behind the motion of ions inside the polymer electrolytes.

13 June 2024 3,489 0 View

What is the breakdown voltage/dielectric strength of Polyvinyl Alcohol?

I searched everywhere and I can't find a single definitive source, the only paper that I found was this one:...

12 June 2024 3,126 3 View

What is the physical or chemical background of the thermal behavior of polyester microfiber fabrics?

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01 June 2024 2,457 3 View

What method is good for doing in vitro degradation study of PCL microsphere by change in weight calculation or change in diameter (from microscope)?

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20 May 2024 6,114 4 View

Elastic properties of matrix reinforced with nanofillers?

How can I find the Elastic properties of matrix material reinforced with nanofillers, is there any relation or formula to find it?

20 May 2024 5,653 1 View

Why intensity of XRD peaks corresponding to the filler increases with increase in filler loading?

What is the mechanism behind increase in the peak intensity with filler loading in polymer nanocomposite. In my work, the (014) peak corresponding to the filler increased proportionately with...

08 May 2024 7,972 3 View

Gyorgy Banhegyi

Please read the following file: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19970036055_1997067804.pdf On page 24 you will find the general formula and the whole report contains much further info

Unmesh Vibhute

@Gyorgy Banhegyi :- once again thanks for help sir

Liang Tian

Calculate percolation threshold, then you got shielding effectivenss.

Article Modeling the electrical resistivity of deformation processed...