Rietveld refinement of cement paste?

I am a beginner in rietveld refinement, my samples contain numerous overlapped peaks and amorphous phases. I have few doubts related to rietveld refinement of cement paste: 1. My quantifications...

11 January 2021 8,873 6 View

What's the diff. btwn Attitudinal & Psychological factors? Most important, which comprise factors of TPB, TAM (Davis 1989), and contextual factors?

Hi there Sometimes I get confused between psychological & Attitudinal factors. My study is related to the "factors influencing consumer purchase intention towards electric vehicles". The...

24 December 2020 6,065 3 View

How to perform convolutional neural network and deep learning algrothim in remote sensing?

26 November 2020 8,853 6 View

How to compute the horizontal and vertical velocities (involve in the subduction rate computation) from Argo data of Temperature and Salinity?

The goal is to compute the total/annual subduction rate of mode water. For this computation, we need horizontal currents (u,v) and vertical currents (w) at the base of the mixed layer when the...

04 November 2020 5,239 3 View

Does anyone observe formation of deposits on Silver thin films in clean room atmosphere ?

I pattened Silver by E beam lithography followed by e beam deposition and lift off. Over a period of two days, they seem to be developing deposits on the surface. My substrate does come in contact...

27 October 2020 5,355 3 View

Is there any highthrough put method for screening of microbes having Bsh activity ? #probiotics ?

can anybody help me with In-vivo screening strategy for microbes having Bsh activity? I want to explore them for cholesterol lowering activity?

11 October 2020 6,355 3 View

How to use solar power in water supply distribution network system?

How solar energy can be used to operate pumps? How much solar energy can be generated?

29 May 2020 7,522 7 View

Why there is sudden potential drop during discharging in Li ion battery?

It charges in 2 Hr up-to 4.5 V but sudden potential drop up to 1.5 V during discharge process.

13 November 2019 8,798 10 View

Is it possible to excite P3HT film around 800 nm in PL?

I had prepared the P3Ht film (~100nm) and recorded the PL spectra at an excitation wavelength of 780 nm and the emission spectra resembles the similarity to that recorded at excitation wavelength...

17 July 2019 9,422 2 View

Can the crystallinity of a polymer be changed without adding nucleating agents ?

I was working on a project where I had to work with isotactic PP (Repsol isplen g3e 002) and extrude different films with different levels of cystallinity without using any nucleating agent. So I...

10 July 2019 6,147 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

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Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?

01 March 2021 5,311 1 View

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View

Are there lab markers/pens resistant to Roti-Histol?

Hi, I'm looking for a pen/marker to write on the smooth, transparent (non-frosted) part of microscopy slides which does not get washed away by alcohols and most importantly Roti-Histol. I want to...

24 February 2021 9,902 5 View

I have a problem with kanamycin - why the kanamycin doesn't affect?

Hi everyone, I need to expression of GFP with pET28 plasmid in E. coli BL21(DE3) plysE. Transformed cells have kanamycin and chloramphenicol resistance. Normally, only transformed cells should...

22 February 2021 4,032 4 View

I see 2 random bands in my ERK/pERK blot? Has anyone else seen this?

I ran a western blot using 12% gel and probing for ERK/pERK (cell signaling antibodies). The green is total ERK, the Red is supposed to be phospho-ERK. I see 2 bands below the total ERK that...

22 February 2021 1,777 3 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View

Resistivity of PVD TiNx thin films vs. N2 flow?

In the PVD of TiN thin films (~100A), I've found the resistivity of the TiN films dropped from ~100 to 60um*cm with N2 flow increasing up to the metallic mode ending point; then the resistivity...

21 February 2021 1,864 2 View

Where can the fault diagnosis data set of lithium battery be found?

Most of the data sets on the network only contain good information about the voltage and internal resistance of lithium batteries. The data of faulty battery is missing. Who can help me, I will be...

21 February 2021 8,659 1 View