How to calculate the number of epoxy groups in a molecule, if the oxirane value is 4.4 (% oxirane oxygen)?

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I want determine Iron by spectrophotometer? Anyone know about the spectrophotometric determination of iron and copper, kindly share the procedure?

spectrophotometric determination of iron and copper

04 June 2024 1,720 0 View

How we can find thermoelectric properties of 2D by VASP?

Hello Seniors, I need some help, I want to find out thermoelectric properties of 2D materials by VASP software can you tell me All steps and important INCAR tags.?

02 June 2024 7,093 1 View

Since many centuries human has researched on advancing weapons of destruction, why not researched on ways to bring advancement for peace in the world?

The mankind is on the edge of resistance to peace. If you view news you will find that every day there are portions of the world where wars are happening and many innocent people are being killed....

26 May 2024 4,633 3 View

How can the Poisson's ratio be calculated from stress-strain curves (with images taken at 100 fps)?

I have conducted uniaxial compression tests on my 3D printed samples. Since these are perforated samples, ideally they should have negative (or near zero) Poisson's ratio. However, DIC (digital...

21 May 2024 9,967 0 View

I am getting command line parse error; inknown option conf?

I have tried the solutions provided in the answers by other researchers, but I still can't figure it out. I am a newbie to this field. Please help m ekindly. I have attached the conf.txt file...

17 April 2024 357 3 View

What is the difference between Calibrator. Control and Standard?

i am working in a diagnostic lab and very confusing about the calibrator, control and standard that we are using in our lab for quality assuarance of diagnosis of disease

07 April 2024 5,763 2 View

Particles size distribution calculations using Python?

Does anyone know the python code to calculate D10, D50 and D90 from %retain of sieves? Thank you.

26 March 2024 9,231 2 View

I want to conduct a pilot study. What can be average number of questions that should be framed in a questionnaire?

The study is required as a pre-requisite for my research study at University.

21 March 2024 9,424 4 View

Does anybody share your experience about the usage of Nunc UpCell plates for human mesenchymal stem cells culture?

Your answers are appreciated. Thanks.

28 February 2024 8,540 0 View

How do I deal with the following error in WEKA?

wrong number of values. Read 20, expected 22, read Token[EOL], line 3215 Problem encountered on Line: 3215. I need help with this error in order to load the dataset onto WEKA

22 February 2024 6,617 3 View

Ethylene glycol is newtonian or non newtonian fluid?

Some sources say it is treated as Newtonian as ethylene glycol has a higher viscosity than water, which affects the flow characteristics in simulations. But some also say it is non-Newtonian.

09 August 2024 2,111 2 View

What is the best conditions for formation Magnetite ore deposits?

I want to know more about Magnetite deposits.

06 August 2024 1,066 0 View

Aspen Plus Simulation?

Greetings When one is to perform Simulation or modelling of Pyrolysis of Biomass Waste materials using Aspen Plus software, and one has both the macromolecules breakdown (Cellulose, Lignin and...

06 August 2024 5,023 1 View

Are there instances where molecules with larger molecular weights exhibit greater mobility than those with smaller molecular weights?

Hi, I know that low molecular weight (MW) molecules generally tend to have higher mobility, while high molecular weight molecules tend to have lower mobility. However, in my experimental...

06 August 2024 1,495 2 View

For an in-vitro drug release study, what molecular weight cut-off (MWCO) dialysis bag is required for a 117 kDa protein?

kindly reply me. Thanking you in advance.

05 August 2024 7,727 4 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Why aren't most metal oxides insoluble in water?

Why BaO (s) + H2O(l) ---> Ba 2+(aq) + 2 OH - (aq) if Oxygen loves owning all the electrons, why would it bind to hydrogen which competes with Oxygen for electron ownership more so than...

03 August 2024 5,392 1 View

How to start a Molecular Dynamics Simulation?

Is it possible to conduct a molecular dynamics simulation to see the effects of a specific carbohydrate on the structure of lipids (e.g., micelle structure)? I am a beginner in this field and plan...

03 August 2024 3,371 3 View

How to Transform my handy-wavy explanation of why group I/II metals oxides in aqueous solution are basic into a rigorous argument?

I heard an explanation about something being a better proton acceptor or lone pair donor but that doesn't make sense. I couldn't explain in in terms of acid-base theory. The hand-waving way I saw...

03 August 2024 9,918 0 View

Which will be the best software for the Hydration shell analysis with molecular dynamics?

I am using a windows system, what software I should use for hydration shell analysis with molecular dynamics?

02 August 2024 3,143 4 View

Abdelkader BOUAZIZ

Dear Irfan Shahzad, please check the following attached file. My Regards

This another interesting RG thread.

https://www.researchgate.net/post/How_do_we_calculate_the_amount_of_amine_hardener_require_to_cure_epoxy_resin

Doufnoune RACHIDA Rachida

Dear Irfan Shahzad;

Please check the following documents.

With my best regards