How to calculate how many multilayer carbon nanotubes are in 1 mg?

More Brenda Irais Orea's questions See All

What researches have so far been made to assess how media is treating or promoting art of underprivileged local artists in Malawi?

These underprivileged are those who have limited resources that can promote their art on their own and yet are not been given media coverage, like musicians, poets, comedians, those who do...

20 March 2024 4,323 0 View

How has a vegetarian diet helped athletes?

Is vegetarian diet effective in helping the performance of athletes?

12 February 2024 6,237 3 View

Cómo extraen RNA total desde vesículas extracelulares provenientes de suero/plasma?

Estoy teniendo problemas con la extracción de RNA total desde vesículas extracelulares (VEs) plasmáticas. Previamente traté el plasma con trombina para obtener una muestra serum-like y luego...

18 July 2023 6,011 1 View

Why two or more species with 100% of the same DNA sequences are not placed in the same branch of a phylogenetic tree?

I reconstructed the phylogenetic tree using the Neighbor-Joining algorithm. The results showed that even though the species are the same (C.maxima), they are in different nodes or branches. What...

23 February 2023 7,369 4 View

What causes the outgroup to be included in the ingroup when constructing a phylogenetic tree?

Good evening. I am doing my final project on grapefruit genetic diversity and constructing a phylogenetic tree by comparing two samples of c.maxima, 10 Citrus genus (NCBI results), and outgroups....

13 February 2023 5,167 1 View

Can a DNA sequence that is 1530 bp long be used for DNA Barcoding analysis?

I am working on a final project related to DNA Barcoding using the matK gene. The sequencing results I have show a length of 1530 bp. Meanwhile, I read some literature that the ideal DNA Barcoding...

12 February 2023 8,629 3 View

How can I calculate a sample size for a matched 1:1 case-control study to determine risk factors for SAM (severe acute malnutrition) ?

I am trying to design a study to determine risk factors for Severe Acute Malnutrition. The study would be in a hospital setting where cases would be infants

04 September 2022 2,598 1 View

Discuss the convergence of decentralization, ender equity and participatory planning in Uganda?

the relationship between decentralization ,gender equity and participatory planning

18 April 2021 7,592 1 View

Are there alternatives to Maslach Burnout Inventory that provide norms or benchmarks?

I'm conducting a study of college/university educators in the U.S. and I'm looking for a reliable, validated burnout inventory that also provides a score range or norms differentiating different...

21 March 2021 1,875 3 View

Can Canon 1061 §1 be seen from other perspectives with regards to the definition of the 'consummation of a marriage'?

"A valid marriage between the baptised is called ratum tantum if it has not been consummated; it is called ratum et consummatum if the spouses have performed between themselves in a human fashion...

12 September 2019 4,534 5 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

Who of all of you will help TPEOM to re-originate the Earths atmosphere to it original 5 atmospheric elements/gases?

Global ‘Weather’ has stopped, as ‘aqua thermionic instituted by the ‘Global thermo atmospherics has instituted global thermodynamics of 120º C + and thus all waters are, or have boiled into a...

06 August 2024 8,716 0 View

Need heterogeneous catalysts calcined before reduction?

Metal-containing heterogeneous catalysts often need to be calcined before reduction, so what are some examples of catalysts that perform better without calcination? What is the reason and how many...

05 August 2024 909 2 View

How to select target material for X-Ray generation?

Generally, the target material is Mo, Co, Cu, Fe, Cr, etc, so on what basis should we choose this material?

31 July 2024 5,824 0 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

Question about combustion Kinetics ?

I am currently working on modeling FCC catalyst regeneration and have come across a point of uncertainty that I hope you can assist me with. In my previous models, I have utilized lumped kinetics...

30 July 2024 6,137 0 View

What is the solubility of Iron (+3) in Bismuth Oxide?

Dear all: I am modifying Bismuth Tungstate with Hematite (Fe2O3), so I would like to know about how much Iron(+3) can form a solid solution in a Bismuth Oxide matrix. Best wishes Marco

29 July 2024 2,163 1 View

What are the perfect mathematical model for a solar-powered ship implementation?

A computational study of heat flux on cylindrical surfaces using CNT hybrid nanofluids

28 July 2024 4,985 1 View

Luma M. Ahmed

I interest...

Mohammad Reza Toosi

You must identify number of layers by TEM and calculate its density in the lab. Then you can estimate number of C atoms.

Mahdi Ghorbani

As a suggestion, you can refer to the following article ( 7 .Characterisation of CNTs).

https://www.researchgate.net/publication/230777261_Carbon_nanotubes_science_and_technology_part_I_structure_synthesis_and_characterisation