LiFePO4 is still superior to traction lead-acid in pretty much every way: energy density, safety, time and cycle life, internal resistance... Yes, they need a BMS but those are very cheap and lots of batteries have them built-in. In fact, I was unable to find 4-cell packs without a BMS inside so I could put two of them in series and balance the 8S cells with each other using an active BMS of my choice, and ended up ordering individual cells and screwing them together.
Very cool! The thesis does not seem to mention blinks but they seem pretty trivial as opposed to eye position. This solution is all in hardware, mine would be all software assuming the eye and eyelid have sufficiently different IR reflectivity for a normal infraport to detect. Of course, there are many other options to implement this such as a microcontroller, some kind of character display and a teletype for non-volatile storage. Or nothing but a Morse code logger but that's a little too dehumanizing.
The original French title refers to a diving suit, one of those heavy metal-glass ones as a metaphor to the locked-in-body syndrome.
I can't imagine the patience required on both sides of the transcription process. In 1995, it would be very much possible to write a computer program that uses reflection of the eye on the IR port to at least partially automate it. Or maybe attach EEG to the patient to perhaps allow for more output.
The first method is risky to rely on. There is no guarantee they will keep hosting your media, especially since they had a kind of vulnerability not too long ago
Don't use Imgur as social media. Don't even use it as image hosting nowadays, its main point (image available directly via URL) is increasingly being enshittified. Use Catbox or GitHub.
LiFePO4 is still superior to traction lead-acid in pretty much every way: energy density, safety, time and cycle life, internal resistance... Yes, they need a BMS but those are very cheap and lots of batteries have them built-in. In fact, I was unable to find 4-cell packs without a BMS inside so I could put two of them in series and balance the 8S cells with each other using an active BMS of my choice, and ended up ordering individual cells and screwing them together.