What is the best Ray Tracing software available?

More Ahmad Bazzi's questions See All

Machine Learning: What a time to be alive ?

Hello Machine Learning community,So, i've been witnessing the evolution of this domain. Other than that, it seems really fun and intuitive. I have some expertise in statistics, signal processing,...

04 May 2017 4,261 3 View

Tutorial on Intel 5300 wifi card?

Hi all, I would like to use the Intel 5300 Wi-Fi card to test some algorithms using my own antennas. Does anyone know a reference or tutorial that shows how to do so ? Any link would be highly...

07 August 2016 8,988 2 View

Null Bilinear forms ?

Hi everyone, Let A be a full rank square matrix (A has no null space). When does y^T A x = 0 occur ? (where T is transposition). It could be that this problem is case-specific, so please find...

01 February 2016 6,321 10 View

Bayesian or Deterministic ?

Dear all, Assume we have the following vector linear model: x = Hs + n where x is the received vector, H is a full column rank matrix and s is the vector of signals. The noise is n.Why do some...

10 November 2015 2,811 34 View

What is a Kruskal Rank ?

Dear All, Let A be an MxN matrix. What is a kruskal rank of A ? And what is the relation between kruskal rank of A and the rank of A ? Thank you so much.

09 October 2015 7,215 3 View

Can someone help with a generalised Eigenvalue Problem with singularity?

Dear all, Let A and B be matrices of size NxN.Let x be a vector of size Nx1. We all know that the function f(x) = xHAx/ xHBx attains its maximum when x is chosen to be the generalised eigenvector...

07 August 2015 9,598 11 View

Is there any reference for starters on compressed sensing ?

Dear all, Is there any reference for starters on compressed sensing ? Thank you in advance.

06 July 2015 6,923 4 View

Can anyone help me with Rank Deficient Least Squares?

Dear All, Assume the following system of equations: Ax = b where b is the vector of data of size Nx1, x is the vector of unknown of size Nx1 and A is the matrix of coefficients of size NxN. The...

06 July 2015 1,092 8 View

Are there any other fitting models like MDL and AIC?

Are there any other fitting models like MDL (Minimum Description Length) and Akaike's Information Criterion (AIC)? Thank you in advance, Ahmad

05 June 2015 7,508 12 View

What are the reasons for antenna calibration for angle of arrival purposes?

Dear All, I am aware of the following: - Errors of antenna positions.- Outer noise, such as metal. The above directly perturb the steering vector.Thank you, Ahmad

05 June 2015 7,830 6 View

What is the difference between mathematical R^4 space and physical 4D unit space?

We assume that the difference is huge and that it is not possible to compare the two spaces. The R^4 mathematical space considers time as an external controller and the space itself is immobile in...

10 August 2024 6,676 14 View

I need JCPDS file of LSFCO nanomaterial. Can anyone provide me?

Require for Rietveld refinement in XRD.

08 August 2024 3,080 2 View

How to increase simulation box size?

We intend to study the interaction between peptides and polymer (like PP, PE and PS) through MD simulations using Martini force fields ( Martini 2 for PP and Martini 3 for PE, PS). We have...

08 August 2024 4,841 0 View

How to understand this crystallographic phenomenon of low temperature crystals in zeolite?

During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...

06 August 2024 724 3 View

How to fix background error in rietveld refinement of one XRD peak using GSAS-II?

I want to refine one XRD peak of my in-situ xrd but the background is never working good which ultimately fails the refinement. How to refine and adjust the background using GSAS-II

05 August 2024 5,288 2 View

How to start a Molecular Dynamics Simulation?

Is it possible to conduct a molecular dynamics simulation to see the effects of a specific carbohydrate on the structure of lipids (e.g., micelle structure)? I am a beginner in this field and plan...

03 August 2024 3,371 3 View

Which will be the best software for the Hydration shell analysis with molecular dynamics?

I am using a windows system, what software I should use for hydration shell analysis with molecular dynamics?

02 August 2024 3,142 4 View

Hello, regarding Mxene 2D titanium carbide?

I fabricated Ti3C2Tx using concentrated HF 40%, I plot an XRD as attached image below.. please let to know if I obtained it or not.

02 August 2024 6,788 4 View

How to calculate the molar proportions of the oxides from the XRF analyses?

02 August 2024 2,564 2 View

Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,604 7 View