Earthquake is one of the most threatening natural disasters to mankind, which is sudden and unpredictable.Earthquakes often cause serious casualties, which can cause fires, floods, toxic gas leakage, bacteria and radioactive material diffusion, and may also cause secondary disasters such as tsunamis

With the development of society, more and more elderly and disabled people are using manual wheelchairs as a means of transportation. There are many types of wheelchairs on the market with different functions.

With the increase in the level of economic development and the improvement of medical and health conditions, society is paying more and more attention to the needs of the elderly. Wheelchairs are a common assistive device for the elderly.

According to the World Health Organization, more than 1 billion people worldwide (about 15% of the world's population) have some form of disability, and the rate is increasing due to an aging population and an increase in chronic diseases.

Although there are many electric wheelchairs on the market, their basic structure is largely similar: a motor, a motor driver, and a controller. Since a power wheelchair moves on the ground, it does not require the high speed of a normal motor, but it does require a relatively large torque.

With the rapid development of the domestic medical industry and the continuous improvement of people's living standards, wheelchairs have become an essential means of transportation for the elderly or disabled. Whether it is an electric wheelchair or a manual wheelchair, the development of the domestic wheelchair industry has now reached its peak. Since it is a mobility tool for the elderly or disabled, its safety and effectiveness should be guaranteed. So, what are the common problems and suggestions for electric wheelchairs​? Let's take a look next.

Spring Festival, as the name implies, is a festival in springsignificance:1. With the arrival of spring, everything is renewed, and a new round of planting and harvesting season will begin again. People have enough reasons to sing and dance to welcome the festival2. Say goodbye to the old and welcom

The Mid Autumn Festival is on the 15th day of August in the lunar calendar, usually from the beginning of September to the beginning of October in the Gregorian calendar, and the full moon in the evening. This is a time for family members and relatives to gather and enjoy the full moon - an auspicio