SEM 200 sample?

why every research using SEM must have 200 data minimum? that is standard or not?

08 November 2019 7,060 2 View

Data panel need classical test?

Does the data panel consisting of cross sections and time series do not require classical assumption tests?

02 February 2019 6,296 2 View

When applying Energy storage for PV system, ist it better to connect them on AC or DC bus?

From what I saw from other people's researches sometimes Battery is connected to DC bus using Bidirectional DC-DC converter. From DC bus power from battery and PV is connected tothe grid by going...

22 January 2019 1,680 3 View

How does PWM contol Inverter that is connected to the grid? How do we decide the V refference?

I understand that when inverter change DC voltage(ex:PV voltage) to AC voltage, we need to condition the frequency and voltage to be the same level as the grid. We can use PWM for this. I study...

08 January 2019 4,734 3 View

Could someone please give me some advice on my PV model in Simulink?

I am trying to model a PV system connected to 2MW Grid. The goals are to scope the output power and monitor frequency on the grid.Now I have several questions: g input for DC-AC inverter should be...

06 January 2019 765 6 View

How do we apply filter on PV-Storage Hybird in MATLAB to smooth the signal of output power??

I am trying to learn how to use filter in Simulink to smooth signal from Solar PV by using Capacitor Storage. The filter I am planning to use is Moving Average Filter. Unfortunately I am having...

27 November 2018 9,157 1 View

Can we do molecular docking and molecular dynamics simulation in a different types of force field ?

In our latest experiments, we did a molecular docking simulation by using "CHARMm" forcefield and it went well. However when we were doing molecular dynamics simulation by using an exact same...

14 June 2016 6,904 3 View

Is the $1000 VGA card worth to buy for MD and docking simulation ?

Our colleague suggests that, by bought the $1000 VGA card to our computer, our simulation would run incredibly faster, and can easily achieve 100 ns MD simulation in less than a week even though...

01 April 2016 4,828 8 View

Can I use Thermodynamic Integration MD Simulation approach by using GROMACS?

So far we're using MD simulation to get RMSD result of the protein-ligand complex and see which one is the best. So far we didn't have the tutorial for doing Thermodynamic Integration MD...

23 May 2015 2,071 3 View

How can I use a SVD in hypoDD?

13 October 2014 1,607 4 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

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

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View