Arindam Roy

11 Questions 22 Answers 0 Followers

Questions related from Arindam Roy

Environmental DNA protocol for Carcinoscorpius rotundicauda and Tachypleus gigas?

Hello, Can anyone suggest papers which describe protocol for e-DNA analysis from marine/estuary water for Carcinoscorpius rotundicauda and Tachypleus gigas?

03 January 2024 2,134 0 View

How to calculate mutual information and joint entropy for the following datasets?

I have the following data set (attached) and I would like to calculate mutual information and joint entropy between multiple columns (like for A,B,D,E or C,D,E,F,G etc.). I have gone through R...

30 July 2020 3,052 2 View

Can PCA or PMF can be done in living sample clustering?

I have a date-wise sampling for concentration of various bacteria in a indoor site. Can I use PCA (principal component analysis) or PMF (Positive Matrix Factorization) to club them into some...

15 April 2018 6,940 3 View

Is there any satellite for GROUND level ClO/BrO data?

I am familiar with data of STRATOSPHERIC ClO/BrO product but I am looking for satellite/methods (Direct/Indirect) that can give me daily data of ClO and BrO in ground level.

27 December 2017 8,027 6 View

Precipitation Scavenging of coarse mode particle.

I am looking for case studies/ research article about precipitation scavenging of coarse mode aerosol (PM2.5-10) and effect of rain intensity on coarse mode aerosol scavenging.

14 August 2017 4,744 4 View

Log normal distribution with Geometric mean?

I am using R-studio. I want to generate some random number with a parameter of geometric mean value 5.1 and geomatric standard deviation of 1.2. What exjact code i should use to do that? I am...

12 July 2017 8,401 2 View

Standard deviation of cluster trajectory.

I can calculate cluster analysis by both hysplit and trajstat model. Now I want to put a standard deviation of those cluster in the plot. How can I do that?

29 April 2016 9,175 1 View

Is there any online tool available for structure determination of chemical compounds for NMR data?

I am working on simple aromatic hydrocarbon molecules found in aquatic animals. I am very new to NMR. I have NMR spectra of several compound but i dont know how to determine their structure. Can...

11 February 2016 4,258 13 View

Can anyone help with problem regarding overlapping peaks of sodium and ammonium during standardization?

We are getting overlapping peak of sodium and ammonium during standardization in ion chromatography. We use 1PPM 3PPM 5PPM and 10PPM as standard. The problem is mostly happening in case of 3,5,10...

23 July 2014 1,525 12 View

Why is there a froth-like appearance in Kimberly- Clark Nitrile Gloves?

We used Kimberly-Clark Purple Nitrile gloves during Ion Chromatography. We saw a froth-like appearance when the gloves came contact with water. It seems some kind of detergent or something was in...

02 July 2014 4,821 2 View

How do I determine scavenging of aerosol particles of a particular chemical nature by precipitation?

There are several papers on scavenging of aerosol particles of a particular size. As an example the Radke (1980) paper gives us an idea about scavenging of various particles of different size...

02 June 2014 6,730 13 View