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NASA: Navigation failure caused the mission of the "Wit" Mars helicopter to end. NASA said on December 11 that the investigation and evaluation of the "Wit" Mars helicopter showed that the navigation system failure was the cause of the rotor damage and the end of the mission during its landing. The "Wit" helicopter landed on Mars with the American "Perseverance" rover on February 18th, 2021. It weighs about 1.8 kilograms, has four rotors, and is powered by solar panels for lithium batteries. On April 19th of the same year, Wit completed its first flight on Mars. On January 18th this year, Wit made its 72nd and last flight to Mars. Because its rotor blades were damaged during the landing, it could not fly again, and NASA announced the end of its mission. On the 11th, NASA announced the investigation results of the last flight of Wit. The evaluation shows that the navigation system of "Wit" can't provide accurate data during its flight, causing a series of failures, leading to the end of its mission. (Xinhua News Agency)Mizuho listed in Japan to invest in the ETF of Saudi stock market.Intel: Breakthrough progress has been made in chip interconnection, and the inter-line capacitance has been reduced by 25%. Recently, Intel OEM announced a major breakthrough in on-chip interconnection technology. The latest subtractive Ruthenium interconnection technology of the company can reduce the inter-line capacitance by up to 25%, effectively improving the on-chip interconnection. According to reports, the subtractive ruthenium interconnection technology has achieved great progress in interconnection miniaturization by using ruthenium, a new, key and alternative metallization material, and using thin film resistivity and airgap. This process does not need an expensive photolithographic air gap exclusion zone around the via, and it can also avoid using a self-aligned via that is selectively etched. When the spacing is less than or equal to 25 nm, the air gap realized by reducing ruthenium interconnection technology can reduce the capacitance between lines by up to 25%, which can be used as a metallization scheme to replace copper damascene process in closely spaced layers. It is reported that this solution is expected to be applied in the future process nodes of Intel OEM. (Sina Technology)

At the close of early trading, the main contracts of domestic futures rose more and fell less. Fuel oil rose by nearly 4%, coke, Shanghai nickel, low sulfur fuel oil (LU), SC crude oil and coking coal rose by over 2%, and glass, sugar, liquefied petroleum gas (LPG) and alumina rose by over 1%. In terms of decline, the European line of container transportation fell by more than 2%, and pigs fell by more than 1%.Jinzheng Co., Ltd.: The new version of appropriateness management system won the bid for four customers in a row. According to Jinzheng Co., Ltd., in September this year, Jinzheng Co., Ltd. released a new version of appropriateness management system, and its products recently won the bid for four customers in Guoyuan Securities, Hongta Securities, Hualong Securities and Guodu Securities, reflecting the changing trend of new management modes such as data guiding decision-making and model risk screening in the field of compliance risk control.Ma Huateng People's Daily wrote: Promote the healthy and sustainable development of the digital economy. Ma Huateng said in the People's Daily that Tencent, as a digital technology enterprise, actively responded to the deployment of the country to expand domestic demand and actively explored the development of digital consumption. By optimizing consumer tools such as WeChat payment, the company tries to create and serve effective demand and promote economic cycle by testing the e-commerce business such as live delivery of water video numbers. At the same time, Tencent relies on the WeChat ecosystem to enhance the absorption and friendliness of employment and entrepreneurship. Last year, it provided employment income opportunities for more than 50 million people. In the future, Tencent will also increase investment, devote itself to technological innovation and industrial upgrading, and jointly contribute to the stable and healthy development of China's economy with the vast number of private enterprises.

Sichuan Changhong and others invested in the establishment of a new smart home company. The enterprise search APP shows that Guangzhou Changhong Smart Home Co., Ltd. was recently established, with Xu Yongyan as the legal representative and a registered capital of 1 million yuan. Its business scope includes: sales of electronic products; Sales of household appliances; Research and development of household appliances; Audio equipment sales and so on. Enterprise equity penetration shows that the company is jointly held by Sichuan Zhiyijia Network Technology Co., Ltd., a subsidiary of Sichuan Changhong.Jinzheng Co., Ltd.: The new version of appropriateness management system won the bid for four customers in a row. According to Jinzheng Co., Ltd., in September this year, Jinzheng Co., Ltd. released a new version of appropriateness management system, and its products recently won the bid for four customers in Guoyuan Securities, Hongta Securities, Hualong Securities and Guodu Securities, reflecting the changing trend of new management modes such as data guiding decision-making and model risk screening in the field of compliance risk control.Thai Prime Minister: Will build houses for low-income people; The government will provide soft loans for community enterprises.