Amorphous XRD Data?

Dear colleagues, I analyzed my material using XRD analysis and the material has shown amorphous behavior , how can I specify the composition of the material is there any extra analysis I can...

24 December 2020 1,280 10 View

What are the scaling parameters in the field of gas turbine combustors?

We have an optically accessible atmospheric combustor. We want to perform the instability analysis of the combustor like flashback, blowout and instabilities occurring near lean blowout. We are...

25 October 2020 2,235 1 View

How to design a plenum/settling chamber for a gas turbine combustor test rig?

I am designing a gas turbine combustor test rig for my research activities. To ensure a uniform distribution of air going into the combustion chamber, I would like to attach a plenum/settling...

03 September 2020 2,637 4 View

What is the best way to analyse the impact of certain symtoms on quality of life between different studies not groups?

I am trying to analyse the impact of 9 symptoms on the quality of life between different ethnicities. I have around 9 studies representing 3 ethnic groups, each study has been done in a different...

07 August 2020 8,051 2 View

Can you put cells from -80 to liquid nitrogen?

Hi all, I have kept cells in -80 for several months, can I transfer them to liquid nitrogen now after all this time? I am afraid they would not survive.. I appreciate your input Thanks!

12 July 2020 3,612 2 View

Solar cell exciton binding energy ?

30 April 2020 1,620 12 View

What do you think about the recommended size of nanaoparticles to become effective?

Nanoparticles are a new approach to deal with infections caused by multidrug resistance bacteria, to do this function , the size of these particles is very important in the mechanism of action.

24 March 2020 4,038 6 View

Could you please help me by solving the following integration?

Dear Colleagues, I'd be grateful if you provide me the solution or give an idea to solve integration. Thanks in advance. Huda

12 February 2020 1,989 15 View

Why is GC MS data inconsistent with published literature?

I am working on phyto-chemical analysis of Cassia angustifolia extracts. GC-MS conditions were used from published literature. I got GC-MS results in the form of graph and a list of 900...

30 September 2019 3,714 9 View

How can you prevent cells from clumping on a coverslip of a 24 well plate?

Hi, I'm trying to stain my cells after transient transfecting them but each time I get the cells either over confluent, or clumped in the middle even though I swirl the dish in an 8 shape to...

15 March 2019 6,585 2 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

What is the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

Onset of Photo Oxidation in Polymers?

Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...

15 February 2021 7,703 4 View

How can I calculate teh crystallinity degree of graphene oxide?

I had treat my XRD diffraction pattern by Highscore to calculate the crystallinity degree Xc and I have the formula but I dont no the 2Theta of Ac and Aa to calculate Xc. Is it like polymers...

10 February 2021 6,305 5 View

Could any one help me with mechanical properties of CFRP(carbon fiber reinforced polymers)?

I am modeling CFRP laminated a concrete column in Abaqus And I need Elastic and plastic properties of CFRP

09 February 2021 4,930 5 View

Dear colleagues. How can we implement the kinetics of the polymerization of aromatic amines in easier and simpler ways?

Dear colleagues. How can we implement the kinetics of the polymerization of aromatic amines in easier and simpler ways? Are there simpler methods for Nano polymers (other than those obtained with...

09 February 2021 5,783 3 View

How to calculate enthalpy of formation of Polymers taking into account the terminal end groups?

I am trying to find methods for theoretical calculation of enthalpy of formation of Polymers. till now I have found the oligomeric method (Gaussian) which uses the extrapolation of results from...

05 February 2021 9,707 4 View

What are advantages of NELF model?

I am trying to simulate permeation of gases in polymers. For this reson normally i use the clasic models like dual sorption model but newly i foun dthe non equilibrium lattice fluid model. It...

03 February 2021 1,203 3 View