High Power control for 48V battery pack - High current control?

Hi, I am working on 48V Lithium-Ion battery pack. I am wondering if there is fast MOSFET (or any other technology), to control the current of charging and discharging the battery with high...

20 January 2021 1,717 4 View

GROMACS: Cannot rename checkpoint file; maybe you are out of disk space?

Hi! i am running a simulation using a cluster and I have encounter an error during my nvt equilibration like this: Cannot rename checkpoint file; maybe you are out of disk space? I deleted some...

03 January 2021 3,544 2 View

How can the resistance of paving asphalt be increased to acid rain?

Modification of the rheological properties of asphalt

25 December 2020 7,390 2 View

Can someone please share the matlab code of FBMC/OQAM PAPR reduction with TR and PTS methods?

I am trying to work on reducing the PAPR of the FBMC/OQAM with the TR and PTS methods. for that if someone can share with me one of these matlab codes. my e-mail: [email protected]

19 December 2020 7,764 1 View

Appreciate the quality qualities of cheese ?

How to estimate the acidity of a cheese?

13 December 2020 4,890 4 View

What is the appropriate polymerase to amplify gDNA greater than 10kb?

I am going to clone gDNA fragment > 10 kb into a pCR TOPO vector. I performed the PCR using KOD PLUS Neo polymerase for 3-steps PCR reaction, I am not able to find the specific size. Several an...

03 December 2020 1,939 5 View

How to get the data of the changing the distance between two Pionts with the applied force?

does anybody knows how can i get the change in the distance between the notch nodes (two points showing in the figure ) vs the applied force in every step as a table out put or curve in...

23 November 2020 352 3 View

Why I got low CI in the EBSD?

Hi I got a low confidence index in the EBSED analysis even after days of polishing using 1 to 0.02 um suspension using 1 lb force, the sample was Al/W composite (has intermetsllic interface)...

26 August 2020 3,547 4 View

Hi Is it needed to etch a sample in order to see dislocations? SEM or TEM microscope should be used for that?

hi please I have Al/W sample and I am looking for screw dislocations on the intermetallic surface, my question is: Should the sample be etched? and should I use the SEM or TEM microscopy? what...

06 August 2020 9,703 2 View

How can i increase my validation and test accuracy?

I am using google colab to train a model for sign language recognition using this dataset: https://www.kaggle.com/feronial/turkish-sign-languagefinger-spelling I tried different architecture...

08 May 2020 4,098 5 View

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

03 March 2021 8,272 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

Are there lab markers/pens resistant to Roti-Histol?

Hi, I'm looking for a pen/marker to write on the smooth, transparent (non-frosted) part of microscopy slides which does not get washed away by alcohols and most importantly Roti-Histol. I want to...

24 February 2021 9,902 5 View

Any references about insects or animals that can damage or weathering of rock or fossil material?

Are there any references to insects or animals that can cause damage or weathering to the rock or fossil material? books or paper that would be nice. Thank you very much!

24 February 2021 6,805 3 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

I have a problem with kanamycin - why the kanamycin doesn't affect?

Hi everyone, I need to expression of GFP with pET28 plasmid in E. coli BL21(DE3) plysE. Transformed cells have kanamycin and chloramphenicol resistance. Normally, only transformed cells should...

22 February 2021 4,032 4 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View

Resistivity of PVD TiNx thin films vs. N2 flow?

In the PVD of TiN thin films (~100A), I've found the resistivity of the TiN films dropped from ~100 to 60um*cm with N2 flow increasing up to the metallic mode ending point; then the resistivity...

21 February 2021 1,864 2 View