Science and technology strategy
The U.S. government has asked federal agencies to implement measures to ban the Chinese short video app TikTok within 30 days
According to Reuters on February 28, people familiar with the matter said that a memorandum obtained showed that the White House limited government agencies to implement measures to ban the Chinese short video app TikTok on federal devices within 30 days. According to the director of the White House Office of Administration and Budget, the move is to protect U.S. data. In addition, the memorandum shows that the U.S. ban on TikTok does not apply to activities related to national security, law enforcement, or security research, but these activities must be approved by the leadership of the relevant departments. Under the memorandum, federal agencies must also resolve issues related to the use of TikTok by communications vendors through contracts within 90 days, and within 120 days of a ban on TikTok in all new tender documents.
Defense Advanced Research Projects Agency to meet to discuss "reimagining the future of AI" from a national security perspective
According to the US Defense Advanced Research Projects Agency (DARPA) on February 27, DARPA plans to hold a meeting to discuss "Reimagining the Future of Artificial Intelligence" (AI Forward) from a national security perspective, aiming to solve the problem of "how to build artificial intelligence and machine learning systems that people can trust". Kathleen Fisher, Director of DARPA's Office of Information Innovation, said, "Call on all relevant researchers and experts to join AI Forward in defining the future of today's most important technologies." DARPA estimates that research in the following areas is essential to creating trustworthy technology: foundational theory, understanding the art of possibility, limitations to the instantiation of specific systems, and informing AI systems in areas such as national security; AI engineering, which will build systems that work as expected in the real world in a predictable way, not just in the lab; Human-machine cooperation enables the system to be a smooth, intuitive, trustworthy teammate for people with diverse backgrounds. DARPA will hold two consecutive offline seminars in June and July 2023 to discuss issues related to the AI Forward program, and is currently inviting relevant companies, research experts, and government workers to participate in the conference.
U.S. President Joe Biden, exercising Section 303 exemption authority under the Defense Production Act, announced strengthening defense supply chain resilience
According to the White House on February 27, US President Joe Biden exercised his Section 303 exemption authority under the Defense Production Act and announced the strengthening of the resilience of the defense supply chain. The White House noted in a statement that U.S. President Joe Biden today exercised Section 303(a)(a)7 exemptions from Section 303(a)(1)-(a)(6) of the Defense Production Act by exercising Section 303(a) 7 exemptions from the Defense Production Act by announcing that the defense industry supply chain will shift from a "general" production status Take the necessary actions to avoid shortages of industrial resources or critical technology items" to ensure a strong, resilient, and sustainable domestic industrial base to protect national security and domestic critical infrastructure.
Information
The Canadian government has announced a ban on the use of TikTok on mobile devices in government departments
According to Reuters on February 28, the Canadian government announced a ban on the use of TikTok apps on mobile devices used by government departments on the grounds of maintaining government information security. Mona Fortier, chair of the Canadian government's Treasury Committee, said in a statement that following a review of TikTok, Canada's CIO determined that the app posed an "unacceptable" risk to privacy and security. A spokesperson for TikTok Canada responded to Canadian media on the ban issued by Canadian officials that the Canadian government did not cite any specific security issues and did not contact the company to ask questions.
creature
Australian researchers have developed hybrid hydrogels that deliver stem cells and oxygen to the damaged site at the same time
According to the news of Shenghui public account on February 27, researchers at the University of Melbourne and the Australian National University in Australia have developed a new hybrid hydrogel that can simultaneously deliver stem cells and oxygen to the injury site of mice until blood vessels can be naturally formed. The team found that adding myoglobin-based synthetic proteins to hydrogels provides sustained oxygen release to ensure that stem cells develop into the types needed to repair brain tissue during transmission. In mouse brains, the survival rate and differentiation of myoglobin-containing hydrogel transplanted neuronal stem cells were significantly enhanced, and the resulting new tissue could be stimulated in a similar way to healthy brain tissue, demonstrating for the first time that the delivery of oxygen within the hydrogel can achieve long-term survival and integration of stem cell transplantation. The research was published in Nature Communications.
Dutch researchers have developed novel human fatty liver organoids and a CRISPR screening platform that can help test and develop new drugs to treat fatty liver
According to Bioworld's public account on February 27, the scientific research team of the Hubrecht Institute in the Netherlands created a new human fatty liver organoid model and used it to screen a large number of drug candidates for the treatment of fatty liver to find effective drugs. Next, the researchers used organoid models to build a CRISPR screening platform, FatTracer, and successfully screened for a potential new target for the treatment of fatty liver FADS2 gene. The organoid model and screening platform will help test and develop new drugs to treat fatty liver and contribute to a better understanding of disease biology. The research results were published in the journal Nature Biotechnology.
The US scientific research team 3D printed the "heart" and "true heart", and the treatment plan can be customized according to specific forms and functions
According to the news of China Science and Technology Network on February 27, the Massachusetts Institute of Technology research team in the United States has developed a program that can 3D print a soft and flexible replica of a patient's heart and control its pumping action to mimic the patient's ability to pump blood. In the future, the program could print out a patient's heart and aorta and perform functional tests on implanted valves, and could also be used by laboratories and the medical device industry as a realistic platform for testing various types of treatments. The research was published in the journal Science Robotics.
The U.S. team developed software to identify genes that play an important role in early embryonic development
According to the news of the public number of Biovalley on February 23, the research team of the University of Washington in the United States has developed a new open-source software CellOracle, which can predict the impact of individual gene deletion or excessive activation on gene networks. The software builds hundreds of genetic experimental models in minutes, models cellular gene regulation, and identifies key genes that play an important role in development that previous techniques may have overlooked, predicting what happens when a gene is missing. Currently, the software can build cell identity models in more than 10 species, including humans and mice. The research was published in the journal Nature.
energy
The U.S. Department of Energy has launched a new $48 million program to improve the reliability and resilience of the U.S. power grid
According to the U.S. Department of Energy on February 25, the U.S. Department of Energy announced the launch of the program called "Achieving Lasting Transformative Resilience Progress by Driving Power Semiconductor Technology Faster" (ULTRAFAST), which will provide $48 million in funding to improve the efficiency of the power grid and its ability to withstand extreme weather and modernize the national grid infrastructure. According to the U.S. Department of Energy, economic losses from grid outages in the U.S. amount to $150 billion a year. The program focuses on developing new technologies to improve grid control and protection, including: improving the performance of semiconductor materials, devices, and power modules to enable faster switching or triggering at higher current and voltage levels; Improve immunity to electromagnetic interference; Develop complementary sensing, packaging, and thermal management technologies.
ocean
The US Navy P-8A anti-submarine patrol aircraft flew over the Taiwan Strait
According to the Russian Satellite News Agency on February 27, the US Navy P-8A anti-submarine patrol aircraft flew over the Taiwan Strait on the 27th, and the Seventh Fleet publicly hyped it. The U.S. Navy's Seventh Fleet claims that the move upholds the "right and freedom of navigation" of all nations and demonstrates the U.S. commitment to a free and open Indo-Pacific. In this regard, China's Eastern Theater released a message saying that the Chinese People's Liberation Army conducted a full surveillance and vigilance on the US P-8A anti-submarine patrol aircraft. At the same time, this move by the United States is deliberately interfering with and undermining the regional situation and seriously endangering peace and stability in the Taiwan Strait region.
Japan and Australia may join the joint patrol of the South China Sea
According to the Russian Satellite News Agency on February 28, a senior diplomat in the Philippines recently said that the Philippines is negotiating with the United States to possibly let Australia and Japan join the planned joint patrol in the South China Sea. It is reported that the Philippines and the United States have completed preliminary negotiations on joint patrols in the South China Sea, and the two countries will restart joint patrol activities in the South China Sea with a high probability in the future. Previously, former Philippine President Rodrigo Duterte suspended patrols by the United States and the Philippines in disputed waters of the South China Sea during his inauguration. According to previous news, Japan and Australia intend to expand bilateral defense relations with the Philippines and have carried out multi-field interaction with the Philippines, including joint naval exercises, economic assistance and defense agreements.
The new marine battery system developed by the Singapore company has been certified by the American classification society
According to the news of the International Ship Network on February 28, a vanadium redox flow battery system developed by Singapore's Gennal Engineering has obtained the new technology certification (NTQ) issued by the American Classification Society (ABS). It is reported that the battery system can last more than 25 years, which is twice that of conventional lithium-ion batteries. In addition, the battery design is recyclable, and vanadium electrolyte is easily extracted and recovered when disassembled. It is understood that the battery will be used in the ABS "Green Sea Supply Vessel" (OSV) project to support the decarbonization of the shipping industry.
For the first time, the Japan Maritime Self-Defense Force and the U.S. Navy held joint exercises in Hiroshima Bay
According to Japan's Fuji News Network (FNN) on February 27, the first joint exercise between the Japan Maritime Self-Defense Force and the US Navy in Hiroshima Bay began on the 27th. The exercise, which will run until March 12, is expected to involve about 200 people from each side, with no further official announcement. According to Hiroshima Family TV, before the start of the exercise, five citizen groups, including the atomic bomb victim group, submitted a request to the Hiroshima Prefectural Government to suspend the military exercise in Hiroshima Bay.
aviation
Japan will build 10 new large ammunition depots to store STR missiles to enable rapid response in an emergency
According to Seahawk News on February 28, Japan's Ministry of Defense will build 10 new large ammunition depots for storing self-developed and purchased standoff strike missiles to enable rapid response in emergency situations. The construction of four new ammunition depots is scheduled to be completed in FY2023, and six sites are planned for research and site selection, and are expected to be built in the southwestern region of the Setouchi base in Kagoshima, the Hora training ground in Miyakoshima, and the Yokosuka and Maizuru bases. Japan will begin developing and producing missile weapons at full speed in 2023 to support the formation of an out-of-zone strike system with ground-strike capabilities. Japan will open 70 new ammunition depots by 2027 and 130 in the next 10 years, Defense Ministry officials said.
Northrop Grumman introduces electronic scanning multifunctional reconfigurable integrated sensors
According to Northrop Grumman's website on February 23, the American company Northomer launched the first "electronically scanned multi-function reconfigurable integrated sensor" (EMRIS) ultra-wideband sensor, or will be used in the US Air Force cooperative combat aircraft or "next-generation air superiority" fighter. EMRIS uses an open architecture that extends the frequency range based on warfighter needs and is widely used in platforms such as radar, communications, and electronic warfare equipment. It is reported that the sensor is based on the research and development technology of DARPA's "Commercial Timescale Array" (ACT) project, which provides support for eliminating the defects of "long array development cycle, short static life cycle, and high cost of service life extension plan".
The U.S. Department of Defense awarded Lockheed Martin a contract to develop more advanced cloud technology for the F-35 fighter
According to global aviation information on February 28, the US Department of Defense awarded Lockheed Martin a revised contract worth $32.5 million to design, develop and build advanced Internet infrastructure based on modern cloud technology and modern software for the F-35 fighter. Lockheed Martin aims to strengthen the security of the F-35 cloud infrastructure signal connection and improve the seamless transmission of data between sensors and the cloud network. It is reported that Lockheed Martin has previously launched an autonomous logistics "cloud-on-premises" system and its improved version, but there are data missing and inaccurate problems, and the performance needs to be further optimized.
space flight
Spaceport will develop sea-based rocket launch platforms to support the growing demand for launches
According to Weishi Aerospace on February 28, the American Spaceport Corporation will develop and build a sea-based rocket mobile launch platform to meet the growing launch demand of the United States. Sea-based launches are designed to complete rocket launch missions without relying on any land-based fixed infrastructure such as radar and tracking equipment, effectively reducing launch costs and risks. It is reported that the company intends to use the lift ship as a sea-based launch test platform in May 2023 to conduct four detection rocket launch tests in the Gulf of Mexico. The full-scale sea-based platform will initially be located thousands of meters from the coast and will be operational as early as 2025, the company said.
The FCC intends to approve the use of terrestrial spectrum for satellites to advance the process of integrating satellites and terrestrial networks
According to the Viasatellite website on February 25, the US Federal Communications Commission issued the "Notice of Proposed Rulemaking" (NPRM) framework document, which intends to approve satellite operators to use terrestrial spectrum to operate satellites. The document aims to promote innovation and investment in new satellite and terrestrial interoperability technologies, and to advance the process of integrating satellite and terrestrial networks. The document states that mobile satellite network services are proposed to be added to a class of terrestrial flexibly used frequency bands allocated by non-primary, federal or non-federal satellites, allowing satellite networks to provide connectivity services as a complement to terrestrial networks.
Materials
American researchers have developed new ways to make solid-state batteries that do not rely on specific chemical elements
According to the website of Lawrence Berkeley National Laboratory on February 23, researchers at Lawrence Berkeley National Laboratory and Florida State University have developed a new method for manufacturing solid-state batteries that do not rely on specific chemical elements. By introducing a mixture of high-entropy metal cations, the researchers increased the ionic conductivity of compounds, reducing dependence on specific chemicals and enhancing synthesis. Experiments confirm that the mixture of high-entropy metal cations will cause local disorder, thereby generating overlapping site energy distribution for charged ions, and generating an osmotic network composed of connection points, reducing the energy difference and accelerating the transmission rate of lithium ions. The findings can be used to build more efficient solid-state batteries and reduce pressure on the supply chain for certain critical metals. The research was published in the journal Science.
The U.S. Army works with research institutions to identify risks in the critical minerals supply chain
According to mining.com on February 27, the US Army Combat Capabilities Development Command Army Research Laboratory and the Worcester Polytechnic Institute (WPI) announced the launch of the "Defense Supply Elastic Material Recovery Technology Program" (Materials Recovery). Technologies for Defense Supply Resiliency Initiative), which has received $7.6 million in congressional funding. The program aims to identify risks in the supply chain of critical minerals and materials and limit manufacturing's dependence on foreign resources, such as rare earth metals for high-temperature performance to make alloys needed to make a variety of military equipment. The main tasks of the project team include developing methods for recycling critical materials, applying advanced manufacturing techniques, determining the recycling process for waste metal materials on site, and studying the use of recycled polymer materials.
Advanced manufacturing
Navigation radar sensors for self-driving cars developed by Swedish researchers enable safe operation in all weather conditions
According to TechXplore on February 27, researchers at Örebro Universitet in Sweden have improved the accuracy of navigation radar sensors for self-driving cars, allowing them to operate safely in all weather conditions. This radar sensor can determine the position of the car with an accuracy of 1 meter after 100 meters, which is 1 meter higher than the previous system. This radar sensor can create its own maps, allowing the vehicle to better perceive its surroundings. The research results have been published in the journal IEEE Transactions on Robotics.
MIT researchers have developed an augmented reality headset that provides X-ray vision to the wearer
According to TechXplore on February 27, researchers at the Massachusetts Institute of Technology in the United States have developed an augmented reality headset called X-AR, which can locate hidden objects through computer vision and wireless perception, thereby providing X-ray vision for the wearer. The device uses radio frequency signals to locate hidden objects labeled with RFID tags and then directs the user to the location of those items. X-AR can be used in e-commerce warehouses to quickly find items on cluttered shelves or buried in boxes, or on manufacturing floors to help technicians find the right parts to assemble products. In the experimental test, the positioning error of the X-AR was less than 10 cm, and the accuracy rate of guiding the user to pick up the item was 96%.
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