According to India's New Delhi television station website reported on October 10, NASA has developed a new high-tech materials, can significantly accelerate wound healing by generating electricity. The report pointed out that in the weightless outer space, the flow of blood in the human body is vastly different from that on the earth. The healing of wounds in outer space is extremely slow. However, the survival risk of outer space and the enormous investment in space flight make it particularly important to be able to quickly heal wounds in outer space. The new high-tech material described above is polyvinylidene fluoride (PVDF), which is used in a wide variety of applications, including heal wounds. When polyvinylidene fluoride comes in contact with other surfaces, including human skin, a small amount of current is generated. Experiments show that a small amount of current helps to speed up wound healing. Emilie Siochi, a senior materials scientist at NASA's Langley Research Center, says that if polyvinylidene fluoride is applied properly to the wound, the wound will act as a scaffold to help speed up the wound heal. Russia's "Satellite" News Network reported that the easiest way to fit is to use gauze, which helps prevent infection and provide further protection. NASA said the invention can control the fiber diameter, stomatal density and fiber thickness to produce the fiber at a lower cost. This "power bandage" can also be used on the battlefield casualties, patients who have undergone surgery and other serious injuries. There are three kinds of inkjet printers, piezoelectric inkjet technology, pressure valve inkjet technology and thermal foam inkjet technology, each of which has different working principles. DOD;Dod Printer,Dod Inkjet Printer,Handheld Dod Inkjet Printer,Handheld Dod Printer GUANGZHOU INCODE MARKING TECHNOLOGY CO., LTD. , https://www.gzincode.com
1) Piezoelectric inkjet technology: Piezoelectric Inkjet Printer is also called high resolution printer or high resolution image printer. On the integrated nozzle, 128 or more piezoelectric crystals are used to control multiple nozzle holes on the nozzle plate respectively. After processing by CPU, a series of electrical signals are output to each piezoelectric crystal through the driving plate. The volume is deformed so that the ink is ejected from the nozzle and falls on the surface of the moving object to form a dot matrix, thus forming text, figures or graphics. Then, the piezoelectric crystal is restored to its original state. Because of the surface tension of the ink, the new ink enters the nozzle. Because the ink dot density per square centimeter is very high, the application of piezoelectric technology can print high-quality text, complex logo and bar code information.
2) Solenoid Valve Type Printer (Large Character Printer): The nozzle is composed of 7 or 16 groups of high precision intelligent micro-valves. When printing, the characters or graphics to be printed are processed by the computer motherboard, and a series of electrical signals are output to the intelligent micro-solenoid valve through the output board. The valve opens and closes quickly, and the ink depends on the internal constant. Pressure dots are ejected, and the dots form characters or graphics on the moving surface of the printed matter.