What are the drawbacks of the Generalized regression neural network (GRNN)?, and how can we overcome these drawbaks?

23 January 2021 8,796 3 View

Question to the specialists. How dangerous is taking the Covid 19 vaccine? What is the most safe vaccines available in the world?

Information has spread widely, which speaks of a potential risk in the event of taking a Covid 19 vaccine, and that this matter definitely worries everyone. Is the Covid vaccine safe?

23 December 2020 4,342 7 View

Why there is continuous need to genetically engineer a yeast that is already an industrially high-yielding strain??

It is generally observed that scientists and researchers worldwide always try to genetically engineer wild-type hyper-producer (high-yielding) strains that already produce enough/excellent...

31 August 2020 4,104 3 View

Is there new researches concerned with the effect of nanomaterials on limiting the spread of Covid 19?

Is there research concerned with the effect of nanomaterials on limiting the spread of Covid 19?

05 August 2020 1,574 8 View

How to report a pooled proportion effect size calculated through double arcsine transformation method?

Dear Researchers, I am asking this question for my friend. "How to comment on/report a pooled proportion effect size calculated through double arcsine transformation method? Problem statement:...

08 June 2020 2,135 3 View

How to evaluate extracted shape descriptors?

I appreciate any clarifications regarding this(python source code, articles "although I read many",...): The main thing I want to make is mesh->graph->weight function -> descriptors ->...

24 February 2020 7,612 2 View

What is the solvent that dissolve starch without using water?

i need to dissolve starch in solvent that could be dispersed in other emulsions like PVA + Tween80 . what is the best bio-solvent that dissolve starch with out using water?

23 January 2019 2,791 5 View

How can i dissolve chitosan in water?

Am working on drug delivery by making chitosan microspheres, and i can not use any toxic solvents, How to dissolve chitosan in DW without using toxic solvents like acetic acid.?

24 December 2018 9,577 6 View

Is it ethical/professional to contact the editor of directly for a submitted manuscript (rather than contacting the editorial team on the website)?

I submitted a manuscript to a journal more than 3 months ago; the status is still not under review (The website says the process takes less time). I contacted the editorial team several times,...

17 March 2018 8,076 22 View

Can any one tell me the methodology of how the diatom extraction is done from the sediment core

pollution chronology related question

05 June 2017 9,042 4 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

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

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

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

Any easy method of analyzing vitamin D in foods by HPLC?

Looking for method of extracting and analyzing vitamin D in foods by HPLC

24 February 2021 7,524 7 View