How do I increase the size of inorganic calcium carbonate micro particles more than 100 um?

More Nadeesha M. Hettiarachchi's questions See All

How to find CdS/CdTe parameter values for Sentaurus simulation?

Hello, Currently our group is trying to understand the use of Sentaurus for solar cell simulations. As per now we have gain reasonable knowledge on the process, but still having some issues with...

06 November 2020 3,503 4 View

Do you know about coating materials for bio-polymer beads?

I am working under bio-polymer micro beads and need to coat my beads to improve its durability. Can you comment about those coating materials?

06 September 2020 2,389 4 View

Is there any way to design allele specific PCR primers for a single nucleotide "deletion"?

Hi, I am currently doing a research on Inborn errors of metabolism in Sri Lanka and for that, I need to develop a method to identify few SNPs and a single point deletion using allele specific PCR...

27 August 2020 2,411 4 View

Can you explain more experiences regarding research about "Guar Gum and oil emulsions" ?

Dear all, I would like to know about guar gum as coating material for oil encapsulation. Please Suggest...? Need to find research experiences under Guar gum.....

19 July 2020 4,810 2 View

Can you comment regarding the identification of mono layers of graphene oxide in aqueous solution using UV-Visible spectroscopy?

I just wanted to identify the mono layers of GO in aqueous solution using UV-Visible spectroscopy.

26 February 2020 5,665 3 View

Has anyone observed (proved by data) a significant change in rainfall amount / pattern as a result of global warming?

Scientists have observed nearly 1 degree Celsius increase of global mean temperature during the last 100 years and they make different predictions / projections on climate change. Has any...

09 October 2019 8,307 7 View

Psychological Well-being Scale for Sri Lanka?

Are there any validated scale/index published for measuring the psychological well-being particularly for Sri Lankan or Asia?

04 June 2019 7,346 2 View

Pilot study followed by reliability and validity evidences?

As an accepted practice, most researchers conduct a pilot test prior to proceed final data collection with the aim of to checking the suitability of the research instrument (standard research...

05 January 2018 3,845 5 View

Does convenient sampling suits SEM?

I have witnessed that most of the recent quantitative social media research studies which published in the top world ranked journals were employing statistical technique as simple as regression...

07 August 2017 6,331 3 View

How to move two molecules separately in a gausview window ?

I have to study the interactions between two molecules, say A and B. And I need to position A in various orientations related to B.

28 April 2017 9,588 1 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Discrete Phase model (DPM) particle break-up has particle size limits during particle tracking?

Hello, I am currently working on simulating water droplet partciles in a closed room. When I use uniform particles, without "particle break-up", I can carry out the simulation without any problem....

02 March 2021 3,053 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

Zno nano particles colour changed from white to grey in process of calcination any suggestions?

In the formation of Zno nano particles process, after drying at 120 degree C, my zno nano particles are completely white but when i calcine it for 450 degree C it converts into grey colour. i...

26 February 2021 2,435 4 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View

Questio regarding micro/nano particles fabrication ?

I will start to fabricate micro/nanoparticles for growth factor release and I check out a procedure quite nice, however, it is lacking some details and since I don't have much knowledge doing this...

20 February 2021 199 2 View

Mixture neutralization after Boc deprotection ?

I am performing a Boc-deprotection with HCl in organic solvent (dioxane or Ethylacetate) but would like to isolate the free amine. Several problems: - Neutralizing with inorganic base as NEt3...

18 February 2021 3,366 3 View

No title

Hello. I ask for help - I need to get lithium tetraborate (soluble salt) from lithium carbonate and boric acid. In literature, everything seems to be simple - mix, ignite and - it's done. But it...

16 February 2021 9,523 2 View