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“” This type of wearable would be very helpful for people with underlying medical conditions to monitor their own health on a regular basis,” co-first author of the study Lu Yin said in a news release.

New wearable device converts body heat into electricity.
“It would also serve as a great tool for remote patient monitoring, especially during the COVID-19 pandemic when people are minimizing in-person visits to the clinic,” Yin, a nano-engineering doctoral student at the University of California, San Diego.

In addition to monitoring chronic conditions like diabetes and high blood pressure, as well as pinpointing the onset of sepsis, the patch could help predict people at risk of becoming severely ill with COVID-19.

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A team of engineers has developed a new device that you can wear like a ring or bracelet and that harvests energy from your own body heat.

Ultralight Wearable Air Purifier that Cleans Itself Ultralight Wearable Air Purifier that Cleans Itself Ultralight Wearable Air Purifier that Cleans Itself Ultralight Wearable Air Purifier that Cleans Itself Constant Pressure TechnologyThe first powered mask that keeps constant-pressure with a pair…

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We can immediately supersede the Mojo Vision approach for retinal projection, with an interim projection system using metalenses. The Mojo Lens approach is to try to put everything, including the television screen, projection method and energy source onto one contact lens. With recent breakthroughs in scaling up the size of metalenses, an approach utilizing a combination of a contact metalens and a small pair of glasses can be utilized. This is emphatically not the Google Glass approach, which did not use modern metalenses. The system would work as follows:

1)Thin TV cameras are mounted on both sides of a pair of wearable glasses.

2)The images from these cameras are projected via projection metalenses in a narrow beam to the center of the pupils.

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Recent advances in the field of robotics have enabled the fabrication of increasingly sophisticated robotic limbs and exoskeletons. Robotic exoskeletons are essentially wearable ‘shells’ made of different robotic parts. Exoskeletons can improve the strength, capabilities and stability of users, helping them to tackle heavy physical tasks with less effort or aiding their rehabilitation after accidents.

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The arm itself weighs about as much as a real human arm and can lift 11 pounds.

A thermoelectric device is an energy conversion device that uses the voltage generated by the temperature difference between both ends of a material; it is capable of converting heat energy, such as waste heat from industrial sites, into electricity that can be used in daily life. Existing thermoelectric devices are rigid because they are composed of hard metal-based electrodes and semiconductors, hindering the full absorption of heat sources from uneven surfaces. Therefore, researchers have conducted recent studies on the development of flexible thermoelectric devices capable of generating energy in close contact with heat sources such as human skins and hot water pipes.

The Korea Institute of Science and Technology (KIST) announced that a collaborative research team led by Dr. Seungjun Chung from the Soft Hybrid Materials Research Center and Professor Yongtaek Hong from the Department of Electrical and Computer Engineering at Seoul National University (SNU, President OH Se-Jung) developed flexible thermoelectric devices with high power generation performance by maximizing flexibility and heat transfer efficiency. The research team also presented a mass-production plan through an automated process including a printing process.

The heat energy transfer efficiency of existing substrates used for research on flexible thermoelectric devices is low due to their very low thermal conductivity. Their heat absorption efficiency is also low due to lack of flexibility, forming a heat shield layer, e.g., air, when in contact with a heat source. To address this issue, organic-material-based thermoelectric devices with high flexibility have been under development, but their application on wearables is not easy because of its significantly lower performance compared to existing inorganic-material-based rigid thermoelectric devices.

https://www.youtube.com/watch?v=xp8_ZvjiaOU&feature=youtu.be

Robo maid I like my coffee light and sweet.

Robots from Japan: the new Toyota robot, giant robot, robot waiter and other technology news 2020. High Technology News 2020. Science and Technology News 2020. The newest and coolest robots from Japan and around the world.

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Flexible THz emitter (Credit: NUS)

The problem is that current sources of THz waves are large, multi-component systems that are expensive, not very mobile, and difficult to operate.