The new graphene film can purify water efficiently.

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Chinese and American researchers published a paper in the new issue of American Science magazine, introducing an ultra-thin high-strength membrane developed from graphene and other materials, which can effectively separate salt ions and organic pollutants in water, and is expected to be used in water purification, separation and purification of chemical raw materials and other fields. Graphene is a two-dimensional material with only one atom thickness, which is an ideal material for constructing ultra-thin nanofiltration membranes. Yolanda's team from Wuhan University in China and Duan Xianfeng's team from UCLA cooperated in this research. The research shows that this material called "graphene nano-screen/carbon nanotube composite film" can effectively separate water molecules from salt ions. This study overcomes the limitations of practical application of two-dimensional materials in separation field and opens a door for efficient selective separation.

02

China's first 3.0GHz general-purpose processor was released.

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Recently, Shanghai Zhao Xin IC Co., Ltd. released a new generation of 16nm 3.0GHz x86 CPU products-Kaixian KX-6000 and Kaisheng KH-30000 series processors at the Central Processing Unit Innovation Technology Industry Ecological Development Forum. This is the first domestic general-purpose processor with a main frequency of 3.0GHz, which further narrows the gap with the international advanced level. The single SoC chip of Megacore's new generation processor includes CPU, GPU and chipset, which has the characteristics of high performance and low power consumption. The chip integration is further enhanced, the performance is improved by 50%, and the performance-to-power ratio is three times that of Megacore's previous generation products. Very suitable for PC, ultrabook, server, embedded computing and other hardware platforms. The release of this product represents an important breakthrough in the core technology and industrial development of high-end chips in China. This breakthrough will be accompanied by a series of follow-up actions and will play a vital role in China's information system.

03

Intestinal bacteria help type A blood become "universal blood"

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Canadian researchers have found that two enzymes produced by human intestinal bacteria can convert type A blood into type O blood, which is called "universal blood". This discovery is expected to alleviate the shortage of blood for transfusion. For some emergencies, medical staff may not have time to confirm the patient's blood type. At this time, the "universal blood" of type O blood is particularly important. In order to increase the supply of "universal blood", researchers have previously discovered an enzyme that can remove antigen A, but the efficiency is low and the cost remains high. Canadian researchers pointed out that these two newly discovered bacterial enzymes in human intestines are very "practical" and can remove antigen A only in a small amount.

04

The automatic monitoring technology of high iron slab in China has reached the international advanced level.

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Recently, the15000th CRTSⅲ Ⅲ track slab of high-speed railway which passed the intelligent robot inspection was rolled off the production line in Beijing Miyun Jugezhuang Board Factory of Beijing-Shenyang high-speed railway, which indicated that the automatic inspection technology of high-speed railway track slab in China reached the international advanced level. This technology was jointly tackled by experts and technicians such as China Railway 22nd Bureau Group, Southwest Jiaotong University, National and Local Joint Engineering Laboratory of Space Information Technology for Safe Operation of High-speed Railway, and an automatic detection system for CRTSⅲ Ⅲ track slab of high-speed railway integrating intelligent robot and 3D imager was developed. The detection process of the detection system is consistent with the production process of the track plate without manual intervention. The detection time of each track slab is shortened from more than 40 minutes to 6 minutes, and the detection accuracy reaches 0.15 mm, which fully meets the requirements of high-speed rail construction specifications.

05

NASA will test "green fuel" in space for the first time.

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According to a recent report on the official website, the National Aeronautics and Space Administration (NASA) will test the non-toxic rose liquid fuel and propulsion system in space for the first time. This "Green Propellant Injection Mission" (GPIM) will help Space Exploration Technology Company launch its Falcon heavy rocket this month, which is expected to power future spacecraft to the moon or other celestial bodies. The use of this fuel and propulsion system allows the spacecraft to replenish fuel during the manufacturing process, thus simplifying the launch process and saving costs. Another advantage is that the new fuel is thicker than hydrazine, and its performance is improved by nearly 50%, which means that the spacecraft can work for a longer time with less fuel.

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