How can I Know good, bad and theta solvents for a polymer?

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How to form the state space model of SMIB with Power Electronic Load?

I am working on a small signal stability analysis of a power system on a power electronic load. The power electronic load is modeled as a voltage-dependent load and has the relation attached in...

26 June 2024 2,496 1 View

Is the sediment also taken for percentile calculation for grain size analysis?

I am performing a graphical grain size analysis based on Folk and Ward (1957) and for that I require percentiles as specified in this article...

08 June 2024 5,583 4 View

How can we model Power Electronic Load for carrying out small signal stability analysis?

Currently, I am working on modeling power electronic loads to perform small signal stability analysis. Anyone researching the same area can help me, as there is limited literature on this area. Or...

16 May 2024 5,468 2 View

Glacial Lake Outburst flood analysis?

I am currently working on my MSc. Dissertation on the recent GLOF disaster which occurred in my state. Even with literature review I am unable to understand the methodology and process of the...

05 April 2024 5,879 1 View

Why oscillation frequency less than 1 Hz is termed as inter-area mode and frequency between 1 -2 Hz is termed as local mode of oscillation?

mode of oscillation is classified as stated in the question. I would be grateful if someone can share the literature about it.

17 March 2024 1,846 2 View

Oscillation frequency of induction motor load in power system stability studies?

Hi, I am carrying out a small signal stability analysis of a power system with an induction motor (squirrel cage) as the load. I am interested in investigating the frequency of oscillation and...

11 February 2024 3,583 0 View

Why number of states does not get reduced when power system stabilizer is deleted from the Model developed in MATLAB/Simulink?

I am working on the small-signal stability of the SMIB system. I want to find the oscillation frequency and damping ratio without and with the power system stabilizer. When I removed the PSS from...

07 February 2024 1,401 0 View

What would be some of the best literature review on knowing your child to improve academic score?

our school through collaboration are in planning do action research on know your child program to improve academic score. we are in thick of bother as to how we would gather literature review on...

09 April 2023 1,255 3 View

How can we identify the most suitable drug target in a given PPI network?

The research articles in this domain indicate use of GO Enrichment and pathway analysis.

09 February 2023 1,756 2 View

Where does anti A or anti B depending its blood group comes in the new born baby despite its unable to transfer from maternal to fetus or cross plac?

If it is produce by fetus body, then how?

21 September 2022 4,121 2 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

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

What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

07 August 2024 613 3 View

How to heat polymer for about 130° without oil bath ?

is there any other way to heat a polymer evenly other than oil bath if so what are those and how to use it

06 August 2024 947 1 View

Which solvent is better to dissolve with secondary metabolites extracted from fungi?

I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...

03 August 2024 4,725 2 View

I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?

01 August 2024 7,504 2 View

How to explain the different interaction between soluble and insoluble polymer in water?

Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.

29 July 2024 6,350 3 View

Why is it not common to see similar pairs in polymer sliding pairs?

If the pairs are similar, will it reduce the adhesion due to electric charges?

29 July 2024 3,185 2 View

HAs anyone used TGA to find activation enegy of water evaporation?

I have different polymer solutions and I hypothesize that water molecules are retained based on the water-polymer interactions, so the amount of free water is less to intercat with drug tablet....

28 July 2024 9,545 6 View

Why methanol and sulphuric acid used in the analysis of polyhydroxyalkanoates (PHA) by GC-MS?

Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?

22 July 2024 1,210 2 View

Gyorgy Banhegyi

Polymer Handbook IVth edition, Brandrup, Immergut, Grulke 1999, pdf verison can be found on the Internet

Tianyu Liu

PVA is soluble in water when slightly heated at temperatures around 90 oC. Usually 10 g water can dissolve 1 g PVA. We use this method to prepare PVA-based quasi-solid electrolyte.

Sonam Zangpo Bhutia

Thanks for your answers