Have you used Cyrene (dihydrolevoglucosenone) to dissolve PVDF?

I noticed in C&EN that a bio-derived solvent called Cyrene has been developed in hopes of it replacing DMF or NMP. Has anyone tried to dissolve PVDF in Cyrene? If so, what were your results?...

23 February 2020 8,032 2 View

R: How to cut off / drop rows of a column after reaching a specific value the first time?

I have the following problem: In a table with multiple coulumns I want to cut off / drop / disable all rows of one column before and after reaching specific values. The tricky part is, that "="...

16 February 2020 2,288 4 View

What are typical safety values for electrical current and field strengths in active implantable devices?

08 August 2017 9,441 2 View

What are typical safety values for electrical current and field strengths in active implantable devices?

07 August 2017 8,887 2 View

Contact dermatitis to ECG electrodes during long-term wear

What is the percentage number of people (in a clincial sub-population) developing irritant or allergic contact dermatitis to wet ECG electrodes? Are there gender differences or differences between...

06 July 2017 3,523 3 View

Does anybody know the light absorption coefficient of sebum and sweat?

20 March 2017 2,530 1 View

Can someone identify these symptoms in lemon leaves??

Plants are young (tree nursery). Apical leaves are affected.

30 September 2016 9,256 13 View

Is there a method for background subtraction or a way to compensate differences between two electrodes due to production in EIS measurements ?

We would like to develop a EIS based protocol for detection of an antibody. For this test we will need to measure two electrodes. One was incubated with the sample and the other with a...

05 June 2016 7,828 6 View

Is anybody interested in a collaboration to test the first medical avatar of the human arterial tree?

16 April 2016 9,172 4 View

Where is the "critical point" in the Nyquist plot?

I must admit that my question is a bit "provocative" because I know the answers. Yes, unfortunately, it seems that there are two possible answers. An engineer educated in control systems most...

31 January 2016 1,434 21 View

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

03 March 2021 8,272 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Can a semi-conductor material have different absorption coefficient?

Does the absorption coefficient of the semiconductor changes with the change in the structure of the semiconductor? If you have a thin film and nanowire of the same semiconductor, will the...

23 February 2021 9,799 4 View