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YouOn Hydrogen Electric Bike

30.12.2021

Chinese bike-sharing platform YouOn has unveiled its first hydrogen bikes. They are currently only offered in the Changzhou urban area in Jiangsu province in China. At the time of launch, 1000 of these bikes are offered in the area for 2 yuan (about $0,3) to rent for 20 minutes.

The body is made of reinforced metal alloy, the hydrogen fuel tank is inside the frame, and the power transformer/battery is under the rider's seat. Despite the many components, the bike is considered light and safe, which is why it is allowed to be used in the city.

A YouOn spokesperson highlighted the company's new hydrogen-powered electric bikes with a range of 70 km, speeds up to 23 km/h, and the ability for cyclists to save energy while cycling uphill.

YouOn has been developing hydrogen-powered electric bikes since 2017, and in October 2019, the company held the first successful test run of its first prototype. The main task during research and development was to solve the problem of hydrogen storage. YouOn had to develop a low-pressure hydrogen fuel tank to allow for more hydrogen-powered bike mileage.

These bikes outperform traditional electric bikes in terms of range, but the production cost of hydrogen bikes is higher than that of lithium-ion counterparts.

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Brainprint login 24.07.2016

A system for identifying a person by his encephalogram has been created.

If you put a cap on a person with electrodes for taking an encephalogram, you can read the thoughts of this person, or, as experts say, register what is happening when thinking, for example, multiplying numbers in the mind, the activity of his brain. Further, this data can be somehow used - to create a neurocomputer interface. And you can solve a more difficult task - to identify a person.

For example, in 2015, a group of Associate Professor Sarah Laszlo from the University of Binghampton (USA) tested the operation of such a system on 32 volunteers. They read a certain set of words to them, recorded the electrical impulses arising in the brain, and then tried to identify the participants in the experiment based on these records. The identification accuracy was 97%, but this did not suit the researchers. They planned to create a perfect clearance system instead of a fingerprint or iris pattern - a three percent uncertainty in such an important matter is not good.

In a new series of experiments, participants were presented with pictures with a clearly expressed plot, and each participant had his own picture of brain activity: the identification accuracy increased to 100%.

Researchers are satisfied: after all, brain impulses cannot be faked, unlike a fingerprint or an iris pattern. And for those who dream of reading thoughts at a distance, there is reason to think: if the brain signals are so individual, then you can read them, but the decoding system for each person will have to be selected again.

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