Data, Info and News of Life and Economy

Daily Archives: June 6, 2022

Chart: U.S. Personal Consumption of Goods Vs. Services

Source : FRED

Chart: U.S. Consumers Saving Rates Dropped While Building Up Debts

Source : Bloomberg

In Pictures: Food of Restaurant Tim Raue in Berlin, Germany

Fine Dining Contemporary German Cuisine

No.31 of The World’s 50 Best Restaurants 2021

Infographic: 中國“东数西算”工程解读

Video: 神舟十四号3名航天员顺利进驻天和核心舱

记者: 高蕊 . . . . . . . . .




Watch video at 新华网 ( 0:57 minute) . . . .

In Japan, Women with New Born Baby Spent 5 Times More Than Men in Housework and Child Care

Source : Nikkei

Tracking Sleep with a Self-powering Smart Pillow

The human body needs sleep as much as it needs food and water. Yet many people fail to get enough, causing both mind and body to suffer. People who struggle for shut-eye could benefit from monitoring their sleep, but they have limited options for doing so. In a new study in ACS Applied Materials & Interfaces, one team describes a potential solution: a self-powering smart pillow that tracks the position of the head.

Studies have linked chronic lack of sleep to physical ailments, such as diabetes and heart disease, as well as mental health issues. Those interested in getting a better handle on what’s happening to them at night have two primary options. They can take a sleep test conducted in a medical facility, or they can use an app through a smartphone or smart watch — a much more convenient, but less accurate choice. Recognizing the need, many groups have begun developing new sleep monitoring systems using triboelectric nanogenerators (TENGs). These self-powering systems have taken the form of eye masks, belts, patches and even bed sheets. Ding Li, Zhong Lin Wang and their colleagues wanted to adapt this approach to create a less restrictive, more comfortable version that focuses on the movement of the head during sleep.

To construct this new smart pillow, the researchers formulated a flexible, porous polymer triboelectric layer. Movement between the head and this layer changes the electric field around nearby electrodes, generating a current. They strung together several of these self-powering sensors to create a flexible and breathable TENG (FB-TENG) array that can be placed atop an ordinary pillow. This system could generate voltage that corresponded to the amount of applied pressure, and it could track the movement of a finger tracing out letters. The FB-TENG also could capture the pressure distribution of a fake human head as it shifted position. This smart pillow could have uses beyond tracking sleep, the researchers say. For example, the system could monitor patients with diseases that affect the movement of the head, such as the degenerative neck disorder cervical spondylosis. What’s more, the smart pillow could be adapted to offer an early warning system for those at risk of falling out of bed, they say.

Source: American Chemical Society