活性物质研究
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天宫迎来小鼠“乘客”
Ke Ji Ri Bao· 2025-11-03 02:55
Group 1: Space Applications and Research - The Chinese Academy of Sciences is leading a project involving six scientific experiments in life sciences, fluid sciences, and materials sciences, with a total weight of 63.2 kilograms sent aboard the Shenzhou 21 manned spacecraft [1] - This mission marks the first time mice have been sent to the Chinese space station, which are important model organisms for life sciences research due to their high genetic homology with humans, small size, short reproductive cycle, and ease of genetic editing [1] - The project aims to study the effects of microgravity and confinement on mouse behavior, which is crucial for understanding the key technologies for breeding and monitoring small mammals in space [1] Group 2: Lithium-Ion Battery Research - The "Electrochemical Optical In-Situ Research of Lithium-Ion Batteries for Space Applications" project, developed by the Dalian Institute of Chemical Physics and the Astronaut Research and Training Center, focuses on in-situ optical observation experiments of lithium-ion batteries in microgravity [3] - The research aims to capture the entire process of lithium dendrite growth in microgravity, which is essential for the development and reliable application of lithium-ion batteries in future space missions [3] - Lithium-ion batteries are highlighted as a crucial power source for various space missions due to their lightweight and long lifespan [2]
微型机器人能用声波自组成智能集群
Ke Ji Ri Bao· 2025-08-14 00:02
Core Insights - The research conducted by scientists from Pennsylvania State University and Munich University demonstrates that individual micro-robots equipped with simple acoustic devices can coordinate to form intelligent clusters through sound waves, exhibiting self-organizing behavior similar to that of flocks of birds or schools of fish [1][2]. Group 1: Research Findings - The study published in "Physical Review X" confirms that sound waves can serve as a control medium for micro-robots, which only require basic components like microphones, speakers, oscillators, and motors to display remarkable collective intelligence [1]. - Each individual robot automatically synchronizes its oscillator frequency with the group sound field and moves towards the strongest sound source, showcasing an unexpected level of collective behavior from such a simple design [1]. Group 2: Advantages of Acoustic Communication - Compared to traditional control methods that rely on chemical signals, acoustic communication offers significant advantages, including faster and longer propagation, minimal energy loss, and a simpler system design [1]. - The research indicates that any physical robot group following this design will exhibit similar intelligent characteristics, enabling flexible navigation in confined spaces and autonomous reorganization after damage [1]. Group 3: Potential Applications - The characteristics of these robotic clusters make them suitable for various applications, including disaster environment exploration, pollutant cleanup, targeted drug delivery, and environmental monitoring [2]. - The self-repair feature of the clusters ensures that even if individual robots are damaged, the overall functionality of the group is maintained, which is particularly important for sensor network construction [2]. Group 4: Significance in Active Matter Research - This breakthrough marks a significant advancement in the field of active matter research, which focuses on studying the collective behavior of self-propelling microscopic organisms and synthetic agents, ranging from swarming bacteria to micro-robots [2]. - The findings lay a theoretical foundation for developing a new generation of micro-robots capable of performing tasks in complex environments [2].