Is there any effective FEM solver to perform simulation of balloon inflation with large deformation (e.g. 300% strain)?

Hi! Thank you for your time, attention, and support. I am currently using FEM solver Abaqus to perform a set of balloon inflation simulations, trying to understand the deformation shape, stress,...

14 February 2021 2,524 4 View

Why are we measuring gel content of NBR latex? Does gel content related to the amount of cross-linked in a polymer?

Hi good day to everyone! I am actually studying the gel content of synthetic latex. Refer to ASTM 3616, gel content is measure of insoluble rubbers in the chosen solvent. So, I just would like to...

07 February 2021 605 4 View

How to delete a copy of a paper, and how to delete a co-author's name?

I mistakenly uploaded a copy of the same paper and entered my alternative name. How to delete them out? (I couldn't navigate to the right buttons to do it. So from where to where is what I don't...

07 January 2021 7,694 6 View

What effect will different solvents have on the ATRP reaction?

I want to do an ATRP reaction, synthesize an ATRP initiator, use DMF as a solvent, and mix DMF, BIBB and TEA to turn red. Why does it turn red? Xylene has been used as a solvent before, and there...

04 January 2021 8,034 3 View

Species identification.Who can tell me the scientific names of these Gastropods?

Species identification. I've been doing research on communities of marine macrobenthos recently, but some of them can't be identified, which hinders my research. Who can help me identify these...

14 December 2020 8,357 3 View

Cell shrinkage during ROS assay(H2DCFDA)?

Hi! I'm Yu, studying about health of MSC. These days, I'm doing ROS assay with H2DCFDA which requires 5~30 minutes of staining with PBS or HEPES or HBSS. In our lab, We use PBS w/o Mg/Ca for...

13 December 2020 8,813 9 View

Can I fix the cells after H2DCFDA assay for FACS analysis?

Hi ! I'm Yu, and planning to analyze ROS assay with H2DCFDA(Thermo) on MSCs. A lot of protocols instruct that treat H2DCFDA at specific concentration for 5~30 min, 20~30 min of recovery time...

10 December 2020 973 1 View

How to reconstruct a Lamb wave by a series of pulses superposed?

Lamb wave is useful for solid structure health monitoring, and it consists many modes. Unlike ultrasonic bulk wave, when given a pulse excitation (for example, 5-cycle sinusoidal pulse), only...

08 December 2020 5,440 8 View

How to interpret the significant effect of covariates when conducting a Two-way ANCOVA?

06 December 2020 8,560 4 View

Did anyone do microglia Oil Red O staining?

I need to stain adiposome in microglia, but I don't know how to confirm that are really success? method : Removed media and washed cells with PBS, then added 4 % paraformaldehyde for 20 minutes at...

24 November 2020 2,359 2 View

Is it possible to have two luminescence bands of the same peak position but with different intensities in single spectrum??

Hi! If it is possible to have two luminescence bands of the same peak position in a spectrum, what is the reason behind formation of two separate bands instead of one? This phenomenon is related...

26 February 2021 4,963 5 View

No amplification data for qPCR on MxPro?

I have set up a qPCR run on MxPro with SYBR green and ROX as a reference, however, when I go to the analysis section the program seems to only collect data for the dissociation curves and not the...

25 February 2021 8,039 1 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

What are difference between laser diodes, simple light emitting diodes and power light emitting diodes when operated in the visible spectrum ?

I want to illuminate a scene (small space) using LED to capture photographs or videos of some tiny objects inside the space. But am not sure if I should use a Laser LED, or simple LED or power...

22 February 2021 4,240 4 View

What low-cut filter (high Pass frequency) to be used for response spectrum (Tripartite plots) ?

What low-cut filter (high Pass frequency) to be used for the response spectrum (Tripartite plots)? I am currently working on differentiating between hard/soft site responses in Indo-Gangetic...

21 February 2021 9,273 2 View

Interpretation of a fluorescence Emission spectrum ?

Hello, i work with a spectrometer which only render the fluorescence emission spectrum. Until now i just found how to interpret an exitation- and emission spectrum together to generate deeper...

20 February 2021 1,291 3 View

How to detect uv vis spectrum of nanoparticle under 300nm?

I try to make the indium nanoparticle and check the uv vis spectrum. I heard that In nanoparticle has surface plasmon resonance peak at 200~300nm. But most of solvent has absorption peak under...

14 February 2021 6,950 15 View

DMAE (deanol bitartrate)- dimethylaminoethanol bitartrate?

Hello all... I m looking for a method for assay DMAE (deanol bitartrate)- dimethylaminoethanol bitartrate in aqueous samples (cosmetic product) using GC- MS mass spectrum HP- 5 ms U.I 0.25...

13 February 2021 7,629 3 View

Dataset for CNN based spectrum sensing?

I am doing a project concerning Cognitive Radio Networks, My project is about CNN based spectrum sensing. I need a dataset for my CNN model. The input data will be energy features from signals.

10 February 2021 954 3 View

Can you correct the wt%/at% of an incorrectly assigned peak in EDS?

For instance, I get a spectrum and the software incorrectly assigns a Si peak as W. If I don't catch it on the software and only have the report (which lists both wt% and at%), is there a way to...

10 February 2021 7,665 4 View