What should be boundary condition on wave function in a continuous potential?

If the potential is a continuous function of x ,say V,(x)= - A ( exp(2|x|/a) -1) ,what should be boundary condition on wave function ? Further ,will it be correct to argue ,wave function and...

11 December 2020 6,617 4 View

How to calculate antibody titre in serum of vaccinated animal using Direct ELISA?

How to calculate antibody titre in serum of vaccinated animal using Direct ELISA? The OD values obtained at different dilution how to determine the cut off OD against which the antibody titre...

31 January 2020 909 4 View

DNA precipitation without ethanol?

Is there a way of precipitating DNA from water without using ethanol? for example, mixing DNA with glycogen and ammonium acetate and then spinning it long enough so the bound glycogen+dna would...

22 August 2019 5,501 6 View

What is the meaning of writting a comment on a published paper ?

When one writes a comment on a published paper , what is actually the intention of the commenting author ? To point out the mistakes or present complete solution . It is seen that very often...

25 February 2019 6,029 4 View

Multiple peaks of the same compound in LC-MS Analysis?

Dear All, I was analysing some MAAs (mycosporine amino acid like substance) samples. HPLC shows a single peak with RT 4 wavelength 333nm. so I thought it is a pure compounds. To know the mass of...

21 August 2018 9,698 3 View

Silicon atom types in Charmm36 ff?

Hi, I want to simulate a ligand containing Silicon atoms ( present in the aromatic form as well). I wanted to ask if anybody could let me know the presence of silicon atom types in Charmm36...

14 June 2018 4,648 3 View

Can I use PVP instead of Sodium acrylate for the synthesis of graphene oxide magnetite nanocomposites?

It says that sodium acrylate is used as a stabilizer and to improve solubility of the precursors. And without its presence the particles aggregate. Can I use PVP instead??

12 June 2017 7,979 3 View

How the score is optimized in multiple sequence alignment?

Can anybody guide how a perfect alignment is obtained or constructed which can be compared with balibase alignment with baliscore? If we consider total conserved column score then it is possible...

05 December 2016 6,817 1 View

Can you help in MATLAB for H=p^2 - x^4 +2ix on eigenvalues ?

Can you help me in eigenvalues calculation using MATLAB for H=p^2 - x^4+2ix ?

29 June 2016 5,501 2 View

Having two soil type (A, B) and extracting with either solvent C or solvent D. C-D value (recovery) is my interest. How to compare A, B on this?

07 June 2015 7,697 8 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

How can I generate random samples from Bingham distribution in R? How can I construct those symmetric matrices?

in the function rbingham(n,A) in R software how can I construct that A (symmetric) matrix?

24 February 2021 3,528 3 View

The Role of Town Planners in CAV Use?

Colleagues and I are about to begin a project investigating the role of town planners and local authorities in establishing the introduction of connected and autonomous vehicles (CAVs). What...

21 February 2021 2,247 3 View

In DFT or HF, is it more expensive to calculate the H matrix or to diagonalize it?

I was wondering: in common DFT (or Hartree-Fock) algorithms/codes, and in particular in solving the Roothan equation, what is the most computationally expensive part: 1- evaluate all the terms of...

01 February 2021 396 2 View

How best to model transportation during usage phase of LCA for a mobile water tank in SimaPro (kg*km)?

I would like to model the usage phase of a mobile water tank. The tank is transported on a tractor or lorry so I need to model the transportation too. My problem is that when I select a...

01 February 2021 6,759 3 View

Matrix based scientific data analysis: extrapolating to matrices of sets?

Data sets, when structured, can be put in vector form (v(1)...v(n)), adding time dependency it's v(i, t) for i=1...n and t=1...T. Then we have a matrix of terms v(i, j)... Matrices are important,...

30 January 2021 9,295 6 View

Do you have an example of an algebraic Hamiltonian vector field which possess a finite number of periodic orbits?

Is there a polynomial Hamiltonian vector field with a finite number of periodic orbits? Please see this MO question:...

21 January 2021 1,673 4 View

Standard addition calibration without blank matrix available?

I have a problem of analytical chemistry. We are working on a spectroscopy technique (FTIR) for the quantification of a mineral phase in complex matrices. We intended to use chemometric techniques...

12 January 2021 7,739 1 View

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11 January 2021 3,284 3 View

In a random graph, the number of paths that cannot be extended in an hamiltonian path, can be roughly be separated in two equal parts ?

In a random graph, the number of paths that cannot be further extended in an hamiltonian path or an hamiltonian cycle, can be roughly be separated in two equal parts? I have an idea for solve for...

07 January 2021 9,782 2 View