the new digital currency- Top Knowledge

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.CITIC Jiantou: China's commercial space layout continues to land, and SpaceX's first mobile phone direct connection constellation has been built. CITIC Jiantou Research Report said that China's state-owned private enterprises have laid out one after another, and the satellite development and rocket launch modes have gradually transformed, and commercial space forces are expected to accelerate the layout process of low-orbit Internet. Recently, China Aerospace Science and Technology Corporation Commercial Satellite Co., Ltd. unveiled its design concept of Internet satellite for the first time, including standardization, low cost, integration, digitalization and scale. The company's production line in Tianjin has an annual production capacity of more than 100 satellites, and the satellite super factory in Wenchang, Hainan is expected to be put into operation in 2025, with an annual production capacity of 1,000 satellites. The third batch of networked satellites in Qian Fan (G60) constellation was successfully launched, and the number of satellites in orbit increased to 54. China Telecom invested 1 billion yuan to set up a new satellite company. Internationally, SpaceX has built the world's first low-orbit mobile phone direct connection constellation, and the three European aerospace giants Airbus Group, Terez Company and Leonardo Company want to jointly build a new satellite company.The reporter explored: optimizing the transaction structure, the second-hand housing has become a hot spot in the market. "After the recent new property market policy, especially the reduction of transaction tax burden such as value-added tax, the second-hand housing is particularly popular." A senior real estate agent manager in Jindaotian District, Luohu District, Shenzhen, told the reporter, "Take several shed-reformed communities here as an example. Recently, more than 20 second-hand houses can be sold in each community every month. The price is low, the house is new and the location belongs to the urban area, which is very suitable for those who just need to buy a home." According to the data of Shenzhen Zhongyuan Research Center, the unit price of second-hand houses in the range of 40,000 yuan to 60,000 yuan accounted for 32.1% in November, ranking first and the increase was the most obvious. The transaction of new houses with a "building age" of less than 10 years was the most active. The reporter found out that in the second-hand housing market in several key cities, the transactions of new second-hand houses with relatively new "building age" are more active. Take Tianhe Park, a plate with high popularity of second-hand houses in Guangzhou, as an example. According to shell data, 41 sets were sold in this plate in October, a significant increase of 127.8% from the previous month. According to Yan Yuejin, vice president of Shanghai Yiju Real Estate Research Institute, the adjustment of tax policy will accelerate the listing of second-hand houses and good houses, which in turn will help buyers subscribe for second-hand houses and large-sized houses, which will have a positive effect on optimizing the transaction structure of second-hand houses and boosting second-hand housing transactions. (e company)

The reporter explored: optimizing the transaction structure, the second-hand housing has become a hot spot in the market. "After the recent new property market policy, especially the reduction of transaction tax burden such as value-added tax, the second-hand housing is particularly popular." A senior real estate agent manager in Jindaotian District, Luohu District, Shenzhen, told the reporter, "Take several shed-reformed communities here as an example. Recently, more than 20 second-hand houses can be sold in each community every month. The price is low, the house is new and the location belongs to the urban area, which is very suitable for those who just need to buy a home." According to the data of Shenzhen Zhongyuan Research Center, the unit price of second-hand houses in the range of 40,000 yuan to 60,000 yuan accounted for 32.1% in November, ranking first and the increase was the most obvious. The transaction of new houses with a "building age" of less than 10 years was the most active. The reporter found out that in the second-hand housing market in several key cities, the transactions of new second-hand houses with relatively new "building age" are more active. Take Tianhe Park, a plate with high popularity of second-hand houses in Guangzhou, as an example. According to shell data, 41 sets were sold in this plate in October, a significant increase of 127.8% from the previous month. According to Yan Yuejin, vice president of Shanghai Yiju Real Estate Research Institute, the adjustment of tax policy will accelerate the listing of second-hand houses and good houses, which in turn will help buyers subscribe for second-hand houses and large-sized houses, which will have a positive effect on optimizing the transaction structure of second-hand houses and boosting second-hand housing transactions. (e company)Desai Siwei and Infineon jointly set up an innovative application center. Recently, the signing and unveiling ceremony of Desai Siwei-Infineon innovative application center and the signing ceremony of the memorandum of cooperation on intelligent driving domain control were held in Huizhou. At present, Desai Siwei and Infineon are relying on the Innovation Application Center to jointly define the MCU chip architecture of the future EEA, test the performance and evaluate the reliability of TC4x MCU devices, so as to provide innovative solutions to customers. In the future, Desai Siwei will join hands with Infineon to carry out joint technical research in two key areas: intelligent driving and cockpit, and accelerate the commercialization of more innovative product technical solutions.Guotai Junan's annual strategy for innovative drugs in 2025: innovative pharmaceutical companies have accelerated into the harvest period, and the valuation has been at a historical low in the past five years. Guotai Junan said that the centralized purchasing policy has become stable, mature and normalized, and the marginal impact has weakened. Innovative drugs have gained policy inclination in the medical insurance negotiation. In the past two years, the policy has continued to promote pharmaceutical innovation, and the top-level design and local supporting chain support the development of innovative drugs. Commercial insurance is expected to bring new growth momentum to China's pharmaceutical market, and the overall industry trend is upward. At present, the trend of innovative drug industry is improving, the supply continues to accelerate, and a number of domestic innovative drugs are approved soon, which is expected to drive a new round of heavy volume. At the same time, the commercialization has achieved remarkable results and has occupied a dominant position in some sub-sectors. Pharma's performance continued to differentiate, and innovative drugs and just-needed drugs performed well. Biotech commercialization continues to increase, per capita yield continues to increase, the node of turning losses is approaching, and innovation ushers in the harvest period. Horizontal comparison: compared with overseas peers, the overall valuation of domestic innovative pharmaceutical companies is in a historically low range; Vertical comparison: the valuation of SW- pharmaceutical biology and SW- chemical preparations is at a historical low in the past five years, and it is expected that the valuation of subsequent sectors will pick up.

Haitong Securities: In 2025, the retail sales of home appliances terminals are expected to increase in volume and price. Haitong Securities reported in its research report on December 10th that the effect of the trade-in policy is remarkable. With the active actions of the central and local governments, the trade-in policy of home appliances is expected to continue in 2025. We judge that the retail sales of home appliances terminals are expected to increase in volume and price in 2025, and the domestic sales revenue of leading enterprises is expected to achieve steady growth. The average sales price of home appliances will increase significantly under the impetus of trade-in, and the profit margin of home appliance enterprises can be expected to increase. Under the downward trend of interest rates, the dividend yield of household appliances leading enterprises is still attractive. It is recommended that white and black electricity leading enterprises which have obviously benefited from the trade-in policy and have global competitiveness.More than 700 listed companies have announced the replacement of the audit institutions in 2024. According to incomplete statistics, since the beginning of this year, the number of listed companies planning to replace the accounting firms in 2024 has exceeded 700. Among them, the number of listed companies that intend to change accounting firms in October and November is 248 and 200 respectively. Looking back at the "exchange tide", three phenomena stand out: First, in order to improve the quality and ability of capital market intermediaries, the supervision of accounting firms by the regulatory authorities has been significantly enhanced. Based on the principle of prudence, listed companies collectively cancel the contract with the "problem institute"; Second, under the heavy penalty, more and more accountants choose to change their firms to practice, while listed companies choose to change their firms instead of accountants; Third, listed companies employ audit institutions through competitive negotiation, public bidding, invitation bidding, etc. In the bidding process, in order to attract more customers and increase the signing rate, the phenomenon of audit institutions reducing prices has increased. (Securities Daily)Guotai Junan: The bottom of China stock market has appeared, and the conditions for a "transformation bull" are taking shape. Guotai Junan Securities recently released the prospect of China's equity investment strategy in 2025, and the bottom of China stock market has appeared, and the conditions for a "transformation bull" are taking shape. After a long period of continuous adjustment, pessimistic expectation and clear microstructure, it is a prerequisite for the stock market to have valuation flexibility. The positive change of decision-makers' attitude towards reversing the economic situation and supporting the capital market is an important cornerstone for revising long-term expectations and getting rid of "bear market thinking" and raising the bottom of the stock market. The reform of the capital market will improve shareholders' returns, and resolving debts, promoting reform and stabilizing asset prices are expected to constitute the new "three arrows" of China's economic development, and the transformation bull of China's stock market is taking shape.