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AI can solve partial differential equations thousands of times faster than before, and partial differential equations play an important role in engineering and science. In a recent study, scientists from Johns Hopkins University in the United States have developed a new artificial intelligence (AI) model called "Differential Mapping Operator Learning" (DIMON), which can solve complex partial differential equations on personal computers, thousands of times faster than before, and is expected to "show its talents" in the fields of aerospace, automobiles and medicine. Related papers were published in the journal Nature Computational Science published on the 9th.Shengmei Shanghai: The plasma enhanced atomic layer deposition furnace tube equipment has passed the preliminary verification. Shengmei Semiconductor Equipment (Shanghai) Co., Ltd. announced in Guanwei today that its Ultra Fn A plasma enhanced atomic layer deposition furnace tube equipment (PEALD) launched in 2024 has passed the preliminary process verification of a semiconductor customer in Chinese mainland, and is undergoing the final optimization and preparing for mass production. Shengmei Shanghai also announced that its Ultra Fn A Thermal Atomic Layer Deposition Furnace Equipment (Thermal ALD) launched in 2022 has also successfully passed the process verification of another leading Chinese mainland customer, and its performance parameters are comparable to or even better than those of similar international competitors.Galaxy Securities: Pay attention to investment opportunities in the fields of cement, consumer building materials, glass fiber, etc. The Galaxy Securities Research Report pointed out that 1) Cement: the price continues to push up, and the northern region has entered the winter peak-shifting stage. In November, the weather gradually turned cold, and the downstream market demand dropped slightly. Most provinces in the north have entered the stage of winter peak-shifting and kiln-stopping, and the kiln-stopping rate is above 80%. Under the background of improving supply and demand in the industry, cement enterprises continue to push up cement prices. 2) Consumer building materials: The retail end continued to improve month on month. In October, the retail sales of building and decoration materials decreased by 5.8% year-on-year and increased by 4.9% quarter-on-quarter. Recently, with the stabilization of commercial housing sales, the demand for consumer building materials has improved. 3) Glass fiber: the price of roving rose slightly at the end of the month, and the price of electronic yarn was temporarily stable. In November, the demand for wind power yarn and thermoplastic yarn was stable, but the demand for traditional building materials was still under pressure, which led to the general demand for roving. There are resumption of production and new ignition production lines within the month, and the annual production capacity has increased; Near the end of the month, glass fiber enterprises issued a notice of re-pricing roving and products. It will take some time for the new price to land, but it will have a certain driving effect on demand and price in the short term. 4) Float glass: at the end of the year, work will continue to support the market demand and the inventory of enterprises will be improved. In November, work was rushed to support the demand of float glass terminal, but the middle and lower reaches mainly digested the previous inventory, and the purchasing enthusiasm declined. In the context of the contradiction between supply and demand in the industry, the production capacity has been significantly reduced, and the inventory pressure of float glass enterprises has improved. Suggested attention: Beixin Building Materials, CONCH, China Jushi, etc.

Market information: Honda will terminate its autonomous driving partnership with General Motors.Guohai Securities gave Youyou Food Co., Ltd. the initial rating of buying.TF Securities: The supply-side reform of cement has gradually entered the second stage, and the industry profits are expected to go out of the relative bottom. According to the TF Securities Research Report, the whole process of the supply-side reform of cement industry can be divided into two steps. In the first step, the effect of "reducing production" was achieved by controlling the new production capacity and promoting peak-shifting production nationwide, and the industry profits were pushed up to a new high in 2019. At present, the cement industry is gradually entering the second stage of supply-side reform, and it is expected to realize the withdrawal of actual production capacity with the help of market-oriented behaviors such as environmental protection, double carbon policy and enterprise merger and reorganization. In the short term, peak-shifting production is still the most effective means to adjust the balance between supply and demand. After entering 2025, with the gradual tightening of the policy of restricting overcapacity, enterprises are forced to withdraw from small and medium-sized production capacity by making up the indicators of overcapacity, and the industry is expected to begin to realize real capacity clearing. In 2027, it will enter the stage of deepening and perfecting carbon trading, and the effect of industry capacity optimization is expected to be further revealed. At present, the profit end of the cement industry has shown signs of stabilization. Under the dual promotion of policy-driven and self-restraint under the growth of corporate profit demands, the profit in the fourth quarter is expected to begin to walk out of the relative bottom. CONCH, Shangfeng Cement, huaxin cement, China Resources Building Materials Technology and Western Cement are recommended.

Everbright Securities: The effect of trade-in subsidy for the whole year is much better than expected. Everbright Securities released a research report saying that the Politburo proposed to implement more relaxed policies, vigorously boost consumption and lead the development of new quality productivity. The intelligent direction of the automobile industry not only conforms to the development tone, but also plays an important role in boosting consumption. At the same time, the industry involves the "two new" themes of large-scale equipment renewal and trade-in of consumer goods, and the bank continues to be optimistic about investment opportunities in the automobile sector driven by favorable policies.Navigation warning! Sea shooting test in the southern Yellow Sea, according to the website of China Maritime Safety Administration, Lianyungang Maritime Safety Administration issued a navigation warning. From 8: 00 to 14: 00 on December 11, some sea areas in the southern Yellow Sea were fired with live ammunition, and it was forbidden to enter.SpaceX is valued at about $350 billion due to internal stock sales. According to an email sent to employees seen by the media, SpaceX and its investors have agreed to acquire the company's common stock of up to $1.25 billion at a price of $185 per share. This transaction values the rocket and satellite manufacturer owned by elon musk at about $350 billion. The memo said that the price of $185 per share was much higher than the valuation of $112 less than three months ago. The memorandum was further confirmed by insiders. According to the memo, only SpaceX offered to buy up to $500 million in common stock.