With the rapid development of information technology, computers and graphic processing technologies are increasingly popularized and popularized, and the printing industry is also constantly undergoing a transition from analog production methods to digital workflows. Computer direct plate-making ----more
The Water Supply Management Department of Zhongyuan Petroleum Exploration Bureau is mainly responsible for the water supply tasks of some industrial sites, public facilities and drinking water for oilfield residents in the area north of the Yellow River. At present, a dual-source water supply patt ----more
Abstract: Due to the rapid development of modern science and technology, the tasks faced by ion chromatographs have far exceeded the scope of traditional qualitative and quantitative analysis. Due to the development of science and technology, the field of human ion chromatography analysis and dete ----more
It is undeniable that there is still a certain gap between China's drop test machine equipment and foreign countries. Under the fierce industry competition environment, the domestic drop test machine wants to survive for a long time, and improving its own development potential is the most impo ----more
Dr. John L. Vande Berg, Chief Scientist of Texas Biomedicine, said: "We first cultivate stem cells in a Petri dish under special conditions to differentiate them into precursors of vascular cells, and then will make them into Similar to the tubular and branched structure of blood vessels. &qu ----more
According to the physicist organization network recently, researchers at Northwestern University in the United States have developed a way to make new types of free radical compounds: for the first time, they will permanently repel two identical cation rings that would normally repel each other. C ----more
In recent years, people are more and more concerned about the weathering resistance of pigments in coatings. When outdoor paint is affected by factors such as light, temperature, and humidity under atmospheric conditions, it will cause aging phenomena such as fading, color migration, and color int ----more