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

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

How to get started building and analyzing a UTAUT model?

Hello all, I need help getting started building and analyzing a UTATU model. I have a survey ready with some questions but I had some confusions on UATAUT and on how to analyze the data. I will...

02 March 2021 9,271 1 View

How to figure out easily the right journal with the right scope for your paper?

According to my experience most of the selected journals during paper submission are based on journal text matching suggested results from Springer, Elsevier,,,Etc. then the manuscript happened to...

01 March 2021 1,786 3 View

Could anyone tell me what is the range of submillimeter wave?

There is confusion regarding the submillimeter-wave range. Many papers specify its range from 300GHz but some also consider its range from 100GHz. If I design an antenna on 122ghz what would I...

01 March 2021 516 7 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

High aspect ratio hexahedral mesh optimization solver?

I am interested in evaluating mesh optimization solvers that converge to high aspect ratio unstructured hexahedral grids. In other words, I am interested in a solver that optimizes warpage,...

26 February 2021 7,279 2 View

Calculating volume of DNA required from DNA concentration?

Hi I am a bit confused. They are asking me to find out the volume of DNA required in ul (a total of 30-100 ng for genomic DNA) from the DNA concentration in the nanodrop reading which was 404.8...

26 February 2021 5,029 2 View

Error in comsol?

Dear respected researchers, while performing CFD analysis in Comsol it's showing like this Error: Nonlinear solver did not converge. The maximum number of Newton iterations reached can...

24 February 2021 249 3 View

Implementation of chance-constrained optimization problem via scenario approach?

23 February 2021 7,826 2 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View