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07 August 2019 4,642 4 View

Why the dielectric constant of the ferrites doped with chromium decreases with increase in the annealing temperature?

Cr doped ferrite prepared by self combustion Annealed as prepared sample at 1000 K and 1200 K for 24 hours separately Dielectric constant of 1000 K annealed sample found to be greater than that of...

01 February 2015 4,975 4 View

Why coersivity of ferrites decreases nearly 1/20 times on annealing at 1200K?

I annealed Cr-ferrites at 1200K for 24 hours, coercivity decreased to 30 G from 600 G.

31 December 2014 6,686 3 View

ZFC curve of CoCrFeO4 annealed at 1200K sample shows a negative magnetization at low temperature below 130 K which is also observed in CoCr2O4, Why?

annealed (24 hours) CoCrFeO4 and CoCr2O4 prepared by self combustion.

31 December 2014 5,503 7 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

How do I plot Pressure against crank angle degree in Fluent?

18 February 2021 8,390 3 View

Problem in detection of a specific gene & elimination of primer dimer in qpcr?

In our lab, we are trying to do real time PCR for some genes. One of them has a size of 85 bp. Whatever we do, we had an amplification in negative control. When we run agarose gel, it always a...

14 February 2021 9,750 11 View

Why non-specific band appear on T-ARMS PCR?

Hi everyone. We want to know how can I remove the non-specific band amplification on this variant. Although the amplification of non-specific band is not as intense as the band that we want, but...

09 February 2021 588 2 View

I have faced a problem to amplify VP2 gene of porcine parvovirus 1,2,3 and 5? Please suggest me how can i solve this problem?

Till now i haven't got any PCR amplified vp2 gene bands on specific annealing temperature and in step up PCR.

08 February 2021 819 4 View

Xrd result of ZnO thin film shown better crystallinity at low temperature and the crystallinity decreases as the temperature increased. why?

I have synthesized ZnO thin films at four different substrate temperature say, 300, 350, 400 and 450C. and the samples were annealed at 450C for half an hour. the xrd result shown better...

04 February 2021 7,641 4 View

How can I partially remove the metal oxide layer for solar cell device?

Hi, I want to make a perovskite-based planar solar cell device. (electrode/HTL/perovskite/ETL/FTO) To fabricate the device, one electrode should be deposited on HTL and the other should be...

01 February 2021 229 6 View

Are there any technical and safety tips or details for hot salt baths?

29 January 2021 6,036 2 View

Do you have experience of second round PCR amplification issue?

When 1st-round PCR amplification was finished , I could get a clear expected band, but the amount was very low, so I cut the band and run second-round PCR with same condition, it didn't work, I...

21 January 2021 888 4 View

Sb2Te3 thin film annealing and damage(break)?

21 January 2021 9,642 2 View