Separation of CaO from Al2O3 and SiO2 in a solid waste, does HCl work?

I have an alkaline solid waste which contains the following components: SiO2, Al2O3, and CaO according to the XRF analysis (as it gives the results as oxides). However, I know from the XRD that it...

28 January 2021 9,469 3 View

I am trying to amplify my gene of interest (GOI, 2000 kb long) by PCR. My previously designed primers are not working. How can I optimize the primers?

As I wanted to amplify my GOI, I chose first 18 nucleotides including start codon in my forward primer. I add BAMHI recognition site at the beginning and 3 nucleotide extension for the efficient...

12 January 2021 3,327 3 View

Does anyone knows the solubility or miscibility of xylene in tetrachloroethylene?

I need to learn if xylene and tetrachloroethylene are miscible or not. It is also will be usefull to learn a solvent that is not miscible with tetrachloroethylene. Thanks,

09 December 2020 3,383 2 View

I treated my fixated cells with PI for Cell Cycle Analysis but our Flow Cytometry did not work. How long can I keep my samples stable(+4) with PI dye?

I prepared my samples with ethanol, RNase and PI. However I could not use the Flow Cytometry machine because of an technical problem. I covered my samples with foil and put them in +4. As my...

21 November 2020 9,132 6 View

Do you have any practical methods of dipping the same amount of leads into the cell as a working electrode each time?

Dear colleagues, What kind of way do you follow to immerse the same amount of heads as pencil graphite electrodes into the cell every time for the cyclic voltammetry in sensor studies? May you...

18 October 2020 6,045 4 View

How should I cite the images (or should I according to my description below)?

Hello! I have a question regarding citing the images that I have draw for articles. I have planned the basic representation by Biorender for myself, I am happy with my design at this point. Now...

22 April 2019 8,717 5 View

What is the optimum dose for in vivo administration of fluorescent ag sio2 nanoparticles?

I'd like to administer Rhodamine B-AgSiO2 nanoparticles that I commercially purchased to mouse brain via carotid artery. The solution I have has the concentration of 0,25 mg/ml. What should be the...

03 April 2018 5,615 2 View

Which solvent(s) dissolves for both nylon 6 and SEBS g-MA?

I need one solvent or solvent system (max 2 solvent) which is suitable for my working polymers (nylon 6 and SEBS g-MA). If any one has an idea regarding this issue please share with me. Thank you.

03 October 2017 4,535 3 View

No title

01 February 2016 7,728 2 View

How can I eliminate ethanol contamination from phage DNA samples?

I isolated M13 phage DNA from bacteria cells with NaI and ethanol steps (for sequencing of phage DNA), but I got very low values of 260/230 as 0,2. I think I have ethanol contamination in my...

03 May 2015 6,707 8 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View