How can I make a center of mass vs time graph?

I have a trajectory file of about 1000 frames which I have calculated a center of mass for each frame. I would like to use the first frame as a reference and see how much the center of mass...

04 February 2021 5,774 1 View

What factors influence the growth of the informal economic sector?

Business in informality can be caused by factors such as the facilitating business environment, tax rates, forms of consumption by buyers, lack of administrative knowledge, complexity of the...

01 January 2021 7,189 5 View

How do I avoid from getting fatal error message when running Amber?

Welcome to antechamber 17.3: molecular input file processor. acdoctor mode is on: check and diagnosis problems in the input file. -- Check Format for pdb File -- Status: pass -- Check Unusual...

17 August 2020 7,046 3 View

Please help, Why does fiber-optic pressure transducer get very variable and highly improbable readings after being submerged in water?

We recently bought a fiber-optic pressure transducer from Opsens (the machine is called Lifesens). We ar einterested on using it to measure intracranial pressure in vivo. However, we had just...

13 May 2018 6,215 2 View

For knowing the bacterial biomass is necesary to know the biovolume? using acridine orange with epifluorescence method?

Hi Im doing my investigation proyect about marine bacteria and I want to measure biomass but i read a protocol about marine ecology but it doesnt specified how to calculate biomass.

27 June 2017 2,806 3 View

How can I compare a NMR and X-ray structure? Which is the easiest way to generate a consensus single NMR structure?

Is there a web server that could provide me rmsd information on the alignment?

04 May 2017 4,088 4 View

What is the importance of the Open-Circuit Potential (OCP) in an electrochemical cell?

A lot of sources explain the concept of the Open-Circuit Potential as simple as the voltage measured when no current flows through the cell, but... What kind of valuable information can be...

29 April 2017 7,964 20 View

What is the importance of the Open-Circuit Potential (OCP) in an electrochemical cell?

A lot of sources explain the concept of the Open-Circuit Potential as simple as the voltage measured when no current flows through the cell, but... What kind of valuable information can be...

03 April 2017 1,679 13 View

Does anyone know if Silica G60 without F254 indicator TLC plates can be used for the detection of compounds at 365 nm?

I'd like to analyze cardiac glycosides by TLC. These compounds show blue to yellowish fluorescence at 365 nm, but all the published papers do use Silica G60 F254 TLC plates. Is it possible to see...

19 February 2017 9,700 3 View

Which is the best protocol to differentiate C2C12 cells?

In my Lab is 2% horse serum, 0.1% insulin 5 days, changing the medium every 48h. I have seen several different protocols but didn't try until now

05 February 2017 8,747 10 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

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View