How to identify the selected and the de-selected controllers in an override control ?

I have recently learned the concept of override control in the p&id diagram. I have also learned some typical examples but whenever i come across a new complicated override control I find it...

31 December 2019 1,113 3 View

Is SSZ-13 zeolite soluble in water or ethanol ?

Can SSZ-13zeolite dissolve in water or ethanol? If not a solution ,can it make a good dispersion.

02 March 2019 6,084 1 View

Is there any way to purify Matrimide 5218?

Hi, I want to purify Matrimide 5218. Can anyone please suggest me a suitable method to purify it?

11 December 2018 7,729 3 View

How can i purify meta-phenylenediamine (m-PD) ?

I need to purify/recrystallize m-phenylenediamine . Is there any simple method to do it ?

09 October 2018 8,677 6 View

Does PMDA-mPD combination works for making Polyimide membrane?

Recently I tried to make a Polyimide PI membrane using Pyromellitic dianhydride (PMDA) and m-phenylene diamine (mPD). Using DMAc as solvent, After reaching Polyamic acid PAA stage i casted the...

09 October 2018 4,767 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

Buffer to disrupt platelet alpha granules for PF4 quantification?

Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...

03 March 2021 1,499 2 View

How two melting peaks in DSC of polypropylene can be merged into one crystallization peak?

The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...

03 March 2021 5,857 3 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 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

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 3 View