How to improve RNA isolation?

Hi, I have been struggling with a weird issue for my RNA samples. I used the Qiagen RNA plus mini kit. For some reason no matter how careful I am with the washes, when I measure the RNA, I get...

22 February 2021 1,286 6 View

I teach a STEM career course for IT majors at a small liberal arts school. I am looking for collaborators/information sources for a new book ?

Looking for collaborators/info sources for a new book I am writing in the career/life coaching field on "Adult Bullies". Most research has been done on childhood bullying, however they eventually...

27 November 2020 6,532 1 View

What solvent can I use to prepare a higher concentration of 5-Bromouracil?

I am standardizing a UHPLC method for separation of thioguanine phosphate metabolites. For this, I want to use 5-Bromouracil (5-BU) as an internal standard, however I am unable to prepare solution...

15 November 2020 4,982 3 View

Is annealing should be done again after a year of nano-particles fabrication and they are found to be agglomerated?

I have prepared CeO2 based nano-particles. due to some technical issues some of the properties like electronic structure and magnetic properties are pending. the samples were prepared...

08 October 2020 769 3 View

Advice writing an unbiased qualitative research question?

Hi, I was wondering whether kindly souls out there might be able to help me with some advice regarding the formulation of a RQ for my qualitative study please? I'm trying to refine an early...

25 March 2020 6,512 5 View

Is there any python code which converts text(unstandarized) into a csv fom?

I have an unstandarized text data . So when I convert the text into csv form it results are not into a proper csv format.

05 February 2020 4,556 3 View

Do you think the word/phrase "Economic Growth" is an innocent and positive one?

15 January 2020 2,890 14 View

What ML/AI algorithms can I use to analyze Bank statement and detect frauds??

Ml algorithms which can be useful to analyze bank statement and then extract information about that frauds.

08 January 2020 9,890 6 View

Any free software to convert my audio interview to text ?

I am doing Qualitative Research

31 December 2018 4,092 8 View

What are barnacles environmental constraints ?

I've got some data on barnacles across a shore line and was after a guide to the appropriate review that discuses the biochemical changes within barnacles during desiccation. Is there one that...

03 December 2018 7,280 2 View

How to design a boost converter for a mppt controller?

I have a doubt on how to select the inductor and capacitor value when I want to implement MPPT controller. This is because we always take a maximum output voltage and current but in this case, we...

28 February 2021 3,637 2 View

Grid connected inverter using virtual synchronous machine?

Hi everybody, currently, I am working on the grid-connected inverter. I want to make my grid-connected PV system a PLL-less system. I have studied some reachers are implementing a virtual...

07 February 2021 6,078 2 View

Can't run my IPMSM drive system with DC-supply higher than 125 V. Have anyone had similar problem?

Hey, I try to run my 4 pole IPMSM with PWSVM and use a typical controller with PI-controller with a current loop and speed loop. When I run my system with DC-supply 100 V with a steady-state speed...

28 January 2021 7,354 8 View

How long should be stable a functionalized CNT? and how can I increase its stability?

I have functionalized MWCNT via both acidic and noncovalent rout, For acidic treatment I have used H2SO4:HNO3 (3:1) while ultrasonication at 55 C, and in non-covalent I used Triton x100, but the...

27 January 2021 4,497 3 View

I am facing problem with integration of boost converter with single phase offgrid inverter?

i tested boost converter with MPPT and single phase offgrid inverter with close loop control separately. They work fine but when i connect them boost converter doesn't give the output as it did...

17 January 2021 6,428 6 View

"The following block is not supported in Phasor simulation?

I am designing a control system for Hybrid renewable energy systems using Matlab/simulink/simscape, but currently having a problem. Whenever I run the simulation, I get the error shown below. "The...

12 January 2021 2,142 5 View

Why do the Dual Central Inverter one is star connected and the other one is delta connected to the 12-pulse transformers?

It's hard to understand for me. And I need answers really quick. Hope you can help me.

21 December 2020 8,140 2 View

How to calculate the critical clearing time CCT ?

I need to measure the CCT from rotor angle graph >> is it possible ? HOW? it will be highly appreciated, if you advice any method to calculate the CCT

17 December 2020 8,763 2 View

If you have solar PV panels and a grid-tied inverter, what happens if the system is connected to the grid without a net meter?

If you have solar PV panels and a grid-tied inverter, what happens if the system is connected to the grid without a net meter?

13 December 2020 8,874 3 View

Distributed vs centralized photovoltaic system performance ?

Hello everyone, I have two questions and I would like it if you could help me out please. I need to know, in your opinion, what is the most efficient PV panel configuration between a distributed...

09 December 2020 4,606 7 View