Why is gravity taken as 10 m/s^2 while gravity is changing at some places like equator where gravity is less?

Weight depends on change in gravity while mass is a constant. so our weight decreases when we r at high altitudes. so it is is clear from this that gravity is changing . so how do people accept...

06 July 2017 707 2 View

How r black holes formed ? How did the radiation from two black holes colliding in universe had an effect on earth on 2015?

What is the reason behind black holes for absorbing and emitting everything that goes by their way?

06 July 2017 5,245 3 View

What is the suitable dispersing liquid for cds and cdse?

We have added cadmium chloride, sodium sulphide, diethylene tri amine.

11 December 2014 4,340 2 View

Why have I got broadened peaks for my XRD graph?

I have slightly sharp peaks. Can anyone tell me from my graph whether my particles are nanoparticles or of amorphous nature? I have attached my file herewith. Some say that that my particles are...

11 December 2014 3,522 20 View

What is the interpretation if we get a step like absorption in UV-Visible Spectroscopy?

I got so many peaks and it also increases what is the interpretation for it.

11 December 2014 8,428 16 View

What will be the difference in band gap value for nanoparticle from its bulk material?

09 October 2014 992 6 View

How can I calculate the size of nanoparticles if they are not spherical?

09 October 2014 6,995 14 View

How can I calculate the volume of hexagonal structured nano particles?

From XRD data the nano particle structure is hexagonal. How can I calculate a,c and volume if my two theta value is slightly deviated from standard value?

09 October 2014 9,900 9 View

How can I find out whether a synthesised material is nano or not?

The XRD results show the size of the particle is 5 nm. But TEM results show that the particle size range from 5-100 nm. How can I sure that the material is nano?

05 June 2014 795 28 View

What type of peak should I get for nanoquantum dots in XRD graph?

In XRD patterns around 10 peaks are present for the sample 1. Also, around 6 peaks are present for the sample 3. Also only one broad peak is present for the sample 2. In addition, XRD patterns for...

05 June 2014 2,988 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

Special issue on PLS-SEM in Mathematics. Are you interested?

21 February 2021 5,601 3 View

How to resolve Gaussian error termination " Error termination via Lnk1e in F:\G16W\l103.exe" for TS(QST3)?

When I run the job for TS(QST3) in gaseous phase, it was completed without any error. But when I add water in CPCM model it terminated with an error: Inconsistency: ModMin= 2 Eigenvalue=...

21 February 2021 3,198 2 View

What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

How to calculate the Atomic Polar Tensor using DFT ?

Dear friends, I am a beginner at DFT calculation. I have done a structure optimization using DFT- B3LYP/6-31G*, Nevertheless, I don't know How to calculate the Atomic Polar Tensor (APT) in...

17 February 2021 9,082 3 View