How to calculate the temperature rise of a transformer?

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How do I calculate no-load current and no load losses mathematically?

I am interested in calculating parameters Rc and Xc which we get performing open circuit test. I am aware of Steinmetz equation to calculate the core losses. However, how do I calculate the...

07 August 2017 5,400 13 View

How to calculate maximum power capacity of the transformer core?

Are the calculations same for all type of transformers? If no, then what is it for Ring or Toroid Transformers?

06 July 2017 2,099 7 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

How to delaminate copper in water-based anodes?

Hello everyone, I'm looking for a way to delaminate copper current collector of water-based anodes in Li-ion batteries without damaging the graphite film. I tried different materials such as HNO3...

24 February 2021 3,785 3 View

Helix antenna coupling problem?

Dealing with a helix antenna, made with flexible material and not rigid like using a PCB board or wire. At the beginning of the helix is too close to the ground plane, causing coupling. How can I...

21 February 2021 4,453 3 View

How to modify micro-structure of Pure Copper which is available as a flat plate of 25 X 25 sq. cm?

Hi everyone, for a thesis project I have to modify the micro-structural properties of pure Cu flat plate of dimension 25 X 25 sq. cm . As I tried searching the available literature, I found a lot...

09 February 2021 5,090 3 View

What could be the cause to have an E.coli DH10B transformed with pUC18 to grow in MKL + ampicillin but is not LAC+?

Hello everyone, I did a transformation of E. coli DH10B using pUC18 plasmid. The bacterias did grow on MKL medium with ampicillin but the colonies showed a white/pink colour and the medium was...

08 February 2021 9,720 3 View

Can I know how to apply contourlet transform for signals in MATLAB?Must I first convert 1D signal to 2D image in order to do this method?

01 February 2021 3,735 3 View

Can I use aluminum or copper based substrate for DNA origami imaging using SEM?

As suggested in the title I want to image my DNA nanoflowers/origami using SEM. These nanoparticles are an organic-inorganic particle made out of highly packed DNA and also contain magnesium...

28 January 2021 3,343 3 View

Can someone explain blocking vs. nonblocking electrodes in terms of electrochemical impedance spectroscopy?

I have fabricated thin films and want to measure the impedance parallel to the material. I suspect the films are conducting protons and electrons based on some Hall effect measurements I have...

27 January 2021 1,712 5 View

Is it possible basic matrix material having higher material removal it's corresponding composites materials In wire EDM process ?

Actually, I am working with Al-B4C- Al2O3 hybrid composites. I have performed the operation by utilizing the wire EDM process to my developed composites. I found alloy 6061 as a base matrix having...

21 January 2021 7,381 3 View