What technologies exist to electromagnetically couple low-power energy systems?

Biological systems generate electrical pulses that are transferred throughout the body by different means (nervous system, cellular connection, etc.). Essentially bodies function based on the...

09 October 2018 1,612 1 View

Invasive devices are being used to stimulate organs in the body. What frequencies, voltages, and pulse lengths are being used?

There are a lot of invasive technologies in use today that are used to stimulate organs, the nervous system, the brain, and pain receptors in the body. One example, would be a device that...

02 March 2018 9,901 3 View

There are many antennas out there. I want to broadcast a signal that only one would receive. How can I do this?

04 May 2016 5,524 7 View

Is anyone doing research on the extraction of biological signals using atomic magnetometers positioned remotely (>10cm) from the body?

Recent research has enabled EEG readings with a sensor 4mm away from the skin: https://www.osapublishing.org/boe/abstract.cfm?uri=boe-3-5-981 In 2013, an extremely sensitive atomic magnetometer...

11 December 2015 8,816 3 View

It is understood that atoms vibrate at specific frequencies. Do all materials vibrate at specific frequencies? If so, how could this be detected?

https://www.researchgate.net/post/Why_the_atoms_are_naturally_vibrating_with_a_definite_frequency

10 November 2015 3,130 3 View

What is the smallest antenna that could be used to transmit a 20Hz signal if you used a fractal antenna and pulsed RF signal?

Fractal Antenna:https://en.wikipedia.org/wiki/Fractal_antenna http://www.antenna-theory.com/antennas/fractal.php Pulsed...

09 October 2015 3,329 5 View

Remote reading of biological signals in an open-unshielded environment

Current technologies restrict the speed biological research can be conducted. The majority of research requires invasive procedures (time consuming and prone to health risk). The adoption rate of...

01 January 1970 7,354 2 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

What kind of food stuff increase the potentiality of human brain?

There are different kinds of food stuffs which we intake daily according to our requirements. Carbohydrate, protein, fat, mineral, vitamin, water are mainly working for the growth and development...

01 March 2021 831 2 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View