How Quadratic Solitons in in homogeneous quadratic media are related to AI?

More Frederico Correia Moreira's questions See All

Z-axis alignment in a protein for z-axis constraints in Amber software?

Good morning, I am running some Steered molecular dynamics in Amber 22 and want to set some restraints in the z-axis so as to imply certain distances from my ligand to its substrate. My goal is...

27 May 2024 7,082 1 View

What tool can predict E. coli protease cleavage sites?

I am observing cleavage in my construct expressed in E. coli and attempting to identify the responsible proteases. Mass spectrometry analysis has revealed the sizes of the fragments, enabling...

12 May 2024 6,540 2 View

Analytical frequency calculation error in ORCA 5.0.3, does anyone know how to change the calculation algorithm?

Good afternoon, We have recently started running ORCA calculation in a new machine, however we are consistently getting memory errors in analytical frequency calculations. Our jobs com-prise a...

27 March 2024 8,609 2 View

How to measure the Zeta Potential of my sample at different pH?

I am asking because if we change the dispersant, it will have different viscosity, refractive index, etc. Is there a standard way to do this? In the articles I found, there is no mention of this....

15 October 2023 5,346 3 View

What is the best substitue for NaCl in a cell culture if I want to avoid chlorides?

As chlorides are very corrosive, I am searching for an alternative.

10 July 2023 4,502 3 View

How to draw the CR100 scale while maintaining the correct number proportions of the original proposal?

List of papers 1. On Perceived Exertion and its Measurement 2. A comparison of AME and CR100 for scaling perceived exertion 3. A comparison between three rating scales for perceived exertion and...

04 June 2022 6,713 0 View

Anyone knows references of disasters assessment, or resilience, using socioecological system?

Searching for references that uses socioecological system for disaster impact assessment, supply chain networks and resilience assessment.

24 January 2022 7,641 13 View

What is the best qualitative data analysis software?

I jnow about MaxQda and NVivo (never used it) and tried with Atlas ti. Is there any that is free for students?

22 January 2022 9,344 19 View

Question is Can I run MD in VMD/Namd2 and do analysis on Chimera? How can I import MD data from VMD into Chimera?

Hello, everyone..I got the same issue as I begun a MD it finished and then got to "Not responding mode", but I understand and still waiting for it to finish. I got VMD/Namd2 for MD, yet I do...

15 October 2021 6,858 4 View

Anyone knows a literature review about materiality for sustainability?

In the past decade most of the sustainability reports are using materiality matrix or frameworks as a tool for prioritizing issues that you be worked by the company. In that way i would like to...

09 September 2021 360 2 View

In passive sampling, can polymer-lipid partition coefficients be applied independent of environmental salinity?

For example, if low-density polyethylene (LDPE) is equilibrated with PCB contaminated marine and freshwater sediments, can LDPE-lipid partition coefficients be used to obtain equilibrium...

28 July 2024 263 1 View

Can you recommend provider Intermediate laboratory test for hydrocarbon, polyethylene & polypropylene?

Accredited laboratory of JV "Uz-Kor Gas Chemical" LLC (Uzbekistan) is looking for providers to conduct interlaboratory comparison tests on gas chromatographic analysis of hydrocarbons (component...

25 July 2024 8,108 0 View

VOC analysis on GCMS ?

Hi everyone, Can someone explain for me a method to inject VOC collected with Tedlar bag from pyrolysis process and transfer or inject into GCMS. Thanks

22 July 2024 6,398 1 View

How can I quantify MDEA (N-Methyldiethanolamine) with a GC-FID?

I have a mixture of glycol, water, MDEA, and piperazine. I want to analyze it with GC-FID.

15 July 2024 9,652 3 View

How can I quantify MDEA (N-Methyldiethanolamine) with a GC-FID?

I have a mixture of glycol, water, MDEA, and piperazine which I want to analyze with GC.

15 July 2024 2,181 10 View

What are the engineering applications of polyethylene with waste tire rubber?

When polyethylene, whether high-density or low-density, is mixed with percentages of waste tire rubber, it becomes a new material. Where can it be used?

26 June 2024 3,349 2 View

Best way to calculate temperature between a sheet of plastic and and absorber as a function of solar radiation intensity (watts/meter^2)?

I am studying polyethylene heat absorbing systems. For example, modeling heat exchanges in a solar air heater and temperatures for melting polyethylene.

01 June 2024 9,379 7 View

Problem while making hydrogel from chitosan and gelatin ?

A uniform mixture of chitosan and gelatin is made by dissolving in acetic acid, after that the mixture is transferred to a plastic petri plate kept at -20 C for 24h and then lyophilized. But i am...

29 May 2024 7,367 4 View

How to get the price of Polyethylene, polyvinyl alcohol and polypropylene fibers used in concrete in different countries?

12mm length

16 May 2024 9,341 0 View

What are the standard methods of washing laboratory containers such as glass and polyethylene using dilute acid in the soil laboratory?

I need standard laboratory methods for washing glass and polyethylene containers in the soil laboratory With the best wishes Sajad Bayat

13 May 2024 5,244 0 View