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

How much the nanoparticles reach the inflammatory tissue?

Dear colleagues, I want to know the average analysis data of EPR effect on inflammatory tissue (acute lung inflammation/injury, ischemia/reperfusion, rheumatoid arthritis, and sepsis..) In...

22 December 2020 3,147 2 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

How to get better phase shift in C-V curves for ferroelectric devices?

I tried to sweep my ferroelectric devices from -2V to 2V and then from 2V to -2V and The two hysteresis peaks are off by several microFarads. Should i increase bias voltage? I am doing these...

16 February 2021 8,514 2 View

What are some alternatives to the Self-Directed Learning Readiness Scale (SDLRS) developed by Dr. Lucy L. Guglielmino?

The Self-Directed Learning Readiness Scale (SDLRS), also known as the Learning Preference Assessment (LPA), was developed by Dr. Lucy M. Guglielmino in 1977 to measure learners' attitudes of and...

15 February 2021 3,095 4 View

Do you have any experience with transfection of EBV immortalized B cells with Lipofectamine?

I know that efficiency of transfection for primary B cells is very low with Lipofectamine. But I did not try that for EBV immortalized B cells. Do you have any experience with transfection of EBV...

05 February 2021 4,159 1 View

How to calculate response rate if the number of eligible respondents is not available?

Hi All, I am carrying out an international research with clinicians (speech-language pathologists/ therapists). International professional associations will be distributing the questionnaire link...

02 February 2021 5,306 3 View

How is it possible to rank variables using Likert scale?

Hello Everyone, I have a questionnaire of a 3-point Likert scale for an overall evaluation for a service, and several detailed attributes evaluation of that service. For example: Overall...

31 January 2021 9,612 8 View

Does euthanasia by CO2 inhalation cause NF-kB activation in mouse heart or body in general?

I was wondering if euthanizing mice by carbon dioxide inhalation would cause activation of NF-kB inflammatory response?

26 January 2021 4,096 2 View

How do you multiple impute item scores and perform a linear regression on factor scores?

I am developing a questionnaire and first performing an exploratory factor analysis. After I have the final factor structure, I plan on regressing the factor scores on some demographic covariates....

18 January 2021 883 8 View

Can fibrosing cholestatic hepatitis in an immunocompromised patient be diagnosed without a liver biopsy?

provided that all the criteria for diagnosis has been fulfilled and alternative diagnosis are also ruled out. The patient has coagulopathy and transjugular biopsy wont be possible due to resource...

13 January 2021 8,935 4 View

What does a negative real part of impedance indicate in a Nyquist plot?

I am trying to quantify Parylene C's hermetic encapsulation quality using EIS with a 2 electrode configuration (WE/WS and RE/CE). I am simply using two patterned gold layers on glass as my...

12 January 2021 7,399 14 View

How big the Balb/c mice spleen after immunization?

I am working with Balb/c mice, and in my experiment, I have to inject mice with antigens, then get their spleen and collect the splenocytes for fusion. Recently, I get into trouble with the mouse...

04 January 2021 3,591 3 View