To what depth is the mantle layered? How does the layering originate and survive?

More L. R. K. Perera's questions See All

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 4,842 0 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

Flow through curved domains?

Hi everyone, I am working on a curved domain in which a ship is situated in the middle (geometry is given below). In my understanding the general fluid flow is parallel to the x axis from inlet to...

25 July 2024 9,058 4 View

What is the Principle of Cysteine-carbazole-sulfuric acid reaction with glucose?

I have been looking for the principle of Cysteine-carbazole-sulfuric acid reaction in research papers and books, but couldn't find it. This reaction is mainly used for the quantification of...

23 July 2024 3,891 0 View

Reversed flow at outlet due to the release of DFBI?

Hi everyone, I am working on a simulation involving restricted canal with ship using DFBI. I am facing reversed flow in my outlet boundaries as the DFBI is released (In 1.25s). Is there any...

17 July 2024 7,032 1 View

Cloning of flaviviruses is difficult i have noticed that cells loose their transformation ability after cloning fragments inside vector any advice?

As flaviviruses genome is very frequently prone to mutation hence it is very difficult to clone whole genome inside vector what kind of vector and cells can sustain such amount of cloning...

11 July 2024 4,284 0 View

I am not getting proper colonies while ligating one of fragments in my vector the colonies seems to be normal but in light it seems lysed any reason?

I am working on cloning of a gene fragment inside my vector everything we tried to do correctly like making insert and vector with utmost care but after ligation the morphology of colonies seems...

11 July 2024 9,010 3 View

Possible reasons for not getting wake effects in free surface?

Hi, I am trying to simulate a ship in a canal. The top width of the canal is 20m, bottom width is 6m, depth is less than 5m. Ship has a length of 11.7m breadth of 4m, draft is 0.62m. The velocity...

10 July 2024 1,732 4 View

Is VSM measurment of NdFeB alloy powder sample require any spesific sample preparation ?

Is any specific sample preparation required to perform VSM measurement of NdFeB alloy powder to get a square-shaped M-H loop? Or is it mandatory to make magnetically aligned and sintered pellets...

09 July 2024 1,969 0 View

The authors are asked to provide and elaborate the explanations and comparison with the existing theoretical and/or experimental works related ?

this is related to Eu doped vanadate based nanophosphor

06 July 2024 2,865 2 View

Increasing Area Ratio on Quality control Standard on LCMS ?

Hello everyone. During my analyses on LC MSMS, the area ratio (Standard Area/Isotopically labelled Standard Area) increases with time for the quality control point. I'm having trouble explaining...

08 July 2024 3,150 2 View

Collecting/storing plant stable isotope samples?

Hello! I am planning to collect plant leaf samples for stable isotope analysis. I will be collecting them from the field and storing fresh tissue on ice. I have heard that bringing along a food...

01 July 2024 9,125 1 View

What are some reliable methods to measure the concentration of H2 gas at ppb levels?

We'll have vials in which we expect H2 generation to occur. Over the first few days, the amount of generated H2 is expected to be at ppb level. GC (+ TCD) detector is best when your H2 level is...

18 June 2024 254 3 View

Alternative to Centrifuge software (Krumm, 1996)?

Dear colleagues, does anyone know of a suitable alternative for Centrifuge software (calculating settling time for grain size separation by centrifugation), preferably one running on Windows 10 or...

17 June 2024 7,085 0 View

Hi, is there a way to transform .cif and .str file to .cel or .txt (that can be read in PCW) software?

I like PCW and profex as they are free softwares. It would be great to put the cif, and str files together with my samples to better identify. I work with XRD applied to mineralogy. Thanks!

12 June 2024 7,036 1 View

Geology Doctorate. Available for Post-doc and guest faculty. Please give suggestions. Anywhere in world ?

Geology Doctorate. Available for Post-doc and guest faculty. Please give suggestions. Anywhere in world.

09 June 2024 1,805 4 View

Please share the HNMR sample preparation procedure for isotopic labelling test to confirm source of N2 during ENRR to ammonia.?

During electrocatalytic nitrogen reduction to ammonia, we perform isotopic labelling test using HNMR to confirm source of ammonia.

29 May 2024 5,165 0 View

How can we accurately identify landslide seismic signals from low SNR raw data collected by seismic stations?

We know that only large-scale landslides can be detected by nearby seismic stations. In my research, I discovered that even landslides with volumes reaching millions or tens of millions of cubic...

23 May 2024 3,027 0 View

Why scientists prefer to experiment with tectonics modeling instead of making the short-term forecast network?

Can anyone explain why scientists prefer to experiment with tectonics modeling instead of making the first short-term forecast network in one or two months that will protect people from death? Are...

04 May 2024 218 0 View

What type of natural sample should be targeted to make secondary reference material for oxygen isotope analysis?

What kind of rock should be targeted to prepare secondary oxygen isotope standard? The mineral of interest is quartz.

27 April 2024 6,251 2 View