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

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

02 March 2017 1,454 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

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

Where can I find atmospheric measurement profiles (temperature, density, etc.) between 300-800 km altitude?

I am investigating thermospheric mass density profiles between 300-800 km altitude. I would like to compare the variability with other parameters, including temperature, electron content,...

01 March 2021 5,902 3 View

SEM or Multiple Regression for an analysis without Latent Variables?

Hello, I have three hypothesis to test, all with the same IV. I am testing if the effect of the IV on the first DV is mediated by awe. I am then measuring whether the effect of the IV on a...

26 February 2021 8,399 5 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

Is it possible to add a source term to the momentum equation in ANSYS CFX?

I want to add a source term as a body force to the momentum equation in Ansys CFX for modeling the VGs and I don't know how do it !!

21 February 2021 2,971 4 View

Magnetismic Gravity in the universe?

MAGNETISMIC GRAVITY What is magnetism? Something magnetic has a + and - charge. If 2 + or - are pushed if + and - are pulled. But what is the main reason for this? Why does magnetism have a pull...

21 February 2021 9,538 3 View

Specify the Burgers vectors for dislocations, which cannot be uniquely identified.?

1. A bcc metal single crystal was sliced along (1 -1 0) plane for TEM study. Assuming that the TEM available is equipped with a goniometer stage which tilts up to 45o. The Burgers vector of...

20 February 2021 2,370 1 View

Can fractal dimension of thin film surfaces affects the electrons energy states?

As fractal dimension of a thin film surface implies the irregularity in the surface. Is it possible that the energy states of the electrons are also affected by the fractal dimension?

19 February 2021 5,509 3 View