05 May 2018 1 694 Report

This question aims to discuss and raise opinions on scientific inventions in the most diverse areas of importance to humanity.

Write about your area of study and what inventions were relevant to humanity.

More João Lucas de Souza Silva's questions See All
What problems when connecting DC-DC converter output in series?

Assuming I have 3 DC-DC boost converters, and I connect the three in different sources. The output is connected in series and in a load. How will the behavior be? Are there papers for this?

31 December 2018 2,774 0 View

How to control power optimizers connected to any photovoltaic inverter within the specifications?

I would like to know how the control of optimizers in series is done, therefore I understand it is necessary to keep the DC current equal for all and to do the MPPT. Does the DC link of the...

11 December 2018 4,399 1 View

Which protection circuits do you use for current and voltage sensors?

I will use sensors with up to 20A for current and 220V for voltage.

08 September 2018 4,810 0 View

What behavior to connect two cascaded MPPT?

If I connect two DC converters to a PV array, both of which have MPPT control, what would happen? Is there any work on this? PV -> [DC convert (1-MPPT)] Optimizer -> [DC convert (2-MPPT) - > AC]...

07 August 2018 3,561 0 View

What phrase from scientists most inspired you?

We always have a key phrase about the scientist we most admire in each area, what is yours?

04 May 2018 5,933 11 View

The number of citations is a quality metric for a paper? What metrics do you think are important?

I don't believe that citation is a reliable metric, since there are areas with more papers than others, so more quotes. Therefore, in my opinion should take into account a set of factors as impact...

04 May 2018 9,692 2 View

What would be the price ratio between materials for semiconductor manufacturing? SiC, GaN, GaAs, for exemple?

Hi, The semiconductor industry continues to accelerate the production of devices with new materials, such as SiC, GaN, GaAs, which have better characteristics than silicon. But what would be the...

03 April 2018 8,704 0 View

Did we come at a time when the improvement in computational hardware has evolved more than the software can keep up?

I realize that the evolution of the hardware in computers has not been evolving as in the past, I believe due to the limitations of the software. How can this be bypassed? What research highlights...

03 April 2018 9,200 0 View

How is the use of photovoltaic energy encouraged in your country?

How is the incentive for photovoltaic energy in your country? What are the results achieved? This is a discussion that can greatly help understand the growth of PV systems.

03 April 2018 2,496 1 View

What better way to prove learning?

This discussion aims to gather ways to prove success in the learning process, within a new moment of education with the advance of Industry 4.0.

03 April 2018 8,891 2 View

Similar questions and discussions
What is the difference between mathematical R^4 space and physical 4D unit space?

We assume that the difference is huge and that it is not possible to compare the two spaces. The R^4 mathematical space considers time as an external controller and the space itself is immobile in...

10 August 2024 6,678 14 View

Which Scopus Journal provides the most affordable fees?

"PUBLISHING IN A SCOPUS JOURNAL" Researchers are now at a cross road. The critical need to publish in a Scopus or ISI, etc journal is ever vital. Journal Publication fees must be submitted....

10 August 2024 8,621 1 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

Seeking Advice on Viability and Execution of Undergraduate Thesis Topic?

Hello everyone, I am currently developing a thesis proposal and would appreciate your input on its viability and how to effectively carry it out. My proposed topic is: "Does the perceived threat...

10 August 2024 8,992 0 View

How to develop investments in renewable energy sources?

How to develop investments in renewable energy sources?

08 August 2024 5,112 3 View

Who will be moral responsible for the death of thousands of people in the event of an earthquake?

Who will bear moral responsibility for the deaths of thousands of people in the event of an earthquake? Weeks and months remain before the onset of strong earthquakes that bring death to...

08 August 2024 6,134 12 View

May members post flyers about opportunities to present at a conference? If so, where to post?

May members post flyers about opportunities to present at a conferehttps://veraeducation.com/nce? If so, where to post for the Virginia Educational Research Association? https://veraeducation.com/

08 August 2024 4,585 1 View

1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How does grain and grain boundary affect the ceramic when studying its dielectric properties?

I am not able to get good literature and the physics behind how first these grains and grain boundaries arises out of no where when we make a pellet to study its dielectric properties and then how...

07 August 2024 5,177 3 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close