How could I fix the "negative intensities in scan data points" error in X'pert when applying Rietveld analysis?

I have faced a problem in using Xpert in Rietveld Analysis, I got the abovementioned message when trying to run Rietveld analysis. The cause of the problem is probably due to that the spectrum has...

28 November 2020 4,272 4 View

Is there a way to elute or separate Gallium and Copper from their alloy?

I have found a relatively old article (1980) about "Quantitative separation of gallium from zinc, copper, indium, iron and other elements by cation-exchange chromatography in hydrobromic...

28 October 2019 7,202 3 View

How to analyze the kernel trick result?

Where ever there is a dot product, the kernel trick can be implemented. actually I implement it on Pearson correlation. for testing, I generated two random signals, the correlation coefficient is...

15 July 2019 8,484 3 View

How to form a memristor for a first time?

I fabricated some memristors but when I try to form them for the first time they broke down. The structure of memristors is Ta/TaOx/Pt. TaOx layer is about 6-8 nm and two electrodes are circa...

21 August 2018 2,295 4 View

Energy equation with periodic boundary condition?

Hello dear friends What is your idea to solve energy equation analytically in a channel with cyclic boundary condition along the channel that its amplitude is variable? Is it doable?(Please find...

08 October 2017 1,681 6 View

How can i measure kinetic stability of my protein during a single mutation by MD simulation or other computational/ online ways?

hi every one i introduce some single mutation on my protein in silico to investigate stability of them without any deficiency on its activity how can i measure kinetic stability of my protein...

11 October 2016 7,979 1 View

How can we calculate outlet temperature and humidity from desiccant wheels?

Hello dear friends How can we find outlet air situation from desiccant wheels such as temperature or humidity. I know it can be found by solving heat and mass transfer equations but it is so...

25 September 2016 1,455 5 View

Can anyone help with a problem in ANSYS ICEM?

I have modeled my geometry and blocked it in ICEM as attached file. The problem is that I cannot have a good meshing since determinant 2*2*2 says.

08 May 2014 9,162 10 View

What are the best boundary conditions that I should impose in inlet and outlet for modelling a compressible flow in a pipe?

I want to model a compressible flow with Ma~0.8 in a pipe in ANSYS CFX.

21 March 2014 1,318 3 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

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Are protein samples in SDS compatible with ELISA?

I have used an AllPrep DNA/RNA/Protein Mini Kit QIAGEN kit to extract RNA and protein from my samples. At the end of the protein purification, I resuspend my protein in 5% SDS. Will these samples...

28 February 2021 7,370 3 View

Does anyone use antinuclear antibody (ANA) and anti-Phospholipid antibody ELISA kit for Non Human Primate serum samples?

I am looking for anti-nuclear antibody (ANA) and anti-Phospholipid antibody ELISA kit for Non Human Primate serum samples. Any suggestions highly appreciated. Thank you.

28 February 2021 6,512 3 View

Anyone know of a good progesterone antibody?

I am looking for a good progesterone antibody to quantify levels of progesterone in zebrafish. Applications would be ELISA, and immunohistochemistry.

28 February 2021 5,929 2 View

Benefits of the 24 welled plate?

We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...

28 February 2021 1,149 1 View

Standard curve shifting over time. How do I stabilise the ELISA?

24 February 2021 1,365 3 View

Can I use a protein-devoid condition as my negative control in ELISA?

Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...

23 February 2021 7,429 1 View

Surprisingly low antibody titers against SASRS-COV-2 RBD in hamsters compared to mice?

21 February 2021 6,958 2 View

Can anyone advise me about a cortisol antibody made in rabbit to set up an ELISA?

I am trying to set up a cortisol EIA using mouse anti-rabbit IGg as coating and a rabbit cortisol antibody as secondary ab. I am searching for a sensitive and specific cortisol Ab made in rabbit

20 February 2021 3,366 5 View