What if top fiber concrete strain exceeds the ultimate strain when fixing the yield strain in steel i.e to calculate yield moment in circular column?

I have prepared an excel sheet to calculate yield moment and curvature for a hollow circular section. In which Depth of Neutral Axis is fixed using "GOAK SEEK" function. Axial Force is input of...

22 November 2020 4,632 3 View

Should I perform transcardial perfusion by PBS before lung isolation for RNA expression analysis?

Hey, I am planning to dissect rats and isolate Lung tissue samples to be stored in RNA stabilizer for later analysis. - Should I perform trandcardial perfusion by PBS ? - Is it necessary to...

21 September 2020 1,822 5 View

ELISA of isomer of glycolytic intermediate 2,3 DPG ?

Hello, I recently performed Kit based ELISA for 2,3 DPG on plasma samples of control and hypoxia treated rats. [CAT. NO. E1562Ra, Bioassay technology laboratory] However, the results I obtained...

07 September 2020 3,270 2 View

Can I use one facet of a multidimensional latent variable questinaairre/scale?

I wish to use self-monitoring scale developed by Richard D. Lennox and Raymond N. Wolfe ("Revision of self-monitoring"). It is a 2 factor structure scale with total 13 items- (1) ability to modify...

17 May 2020 8,027 3 View

On column TEV cleavage?

Hi, I have cloned my protein with TEV protease site (His tag-TEV site-linker-protein). I purify my protein with Ni-NTA and then do on column TEV cleavage (overnight). I hardly see any TEV...

10 March 2020 1,205 3 View

How to get a good SDS page gel for 16KDa protein?

I want to see a 16kDa band of my protein in SDS PAGE. Whenever i run the gel, the band in the upper part of resolving gel were very sharp and clear however the lower part where i supposed to get...

11 February 2020 7,749 2 View

What is current state of machine learning in the field of condition monitoring?

I am looking for the possible implementation of ML tools for electrical machines. If any of the approach has even been used in the industry?

28 January 2020 8,165 3 View

What length of long non coding RNA (lncRNA) should be used for its overexpression in plants?

Hi all, I am planning to over-express a lncRNA (under 35S) in Arabidopsis. Will the presence of 20-30 bp sequences upstream and downstream of lncRNA sequence affect its over-expression? I...

15 August 2019 6,720 1 View

What would be the mobile phase for quantifying sodium citrate using HPLC method?

I have to determine concentration of sodium citrate using HPLC method. Previous literature's used potassium phosphate buffer of pH 2.5 as mobile phase (isocratic). As there is risk of clogging the...

31 July 2019 1,101 5 View

What are the white bands on western blot ?

Out of curiosity ! I was trying to do western blot for Erythropoietin, as you can see the procedure was unsuccesful but there are some unexpected white bands on the blots. Can anyone tell me what...

29 July 2019 5,659 13 View

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

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

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03 March 2021 5,360 2 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View