In a paper published in the Journal of Geo-Information Science, a Chinese team of scientists presents a cost-efficient and equitable facility location problem (CEEFLP) for public service. The new model is simple yet effective in selecting spatially equitable facility locations while considering facility costs and travel efficiency.

Scientists from China have developed a breakthrough asynchronous optical computing accelerator based on wavelength encoding. This architecture overcomes synchronization challenges in conventional optical recurrent processors, significantly reducing both the energy consumption of electronic components and the complexity of optical layout design. The chip enables efficient computing for large-scale AI tasks, such as DNA analysis and speech recognition, while achieving high energy efficiency.

Focusing on the spatial cognitive capabilities of large language models (LLMs), researchers led by Prof. Danhuai Guo from Beijing University of Chemical Technology have introduced SRT4LLM, a standardized framework for testing the spatial cognition of LLMs. The framework systematically assesses LLMs across three key dimensions—spatial object types, spatial relations, and prompt engineering strategies—and establishes a unified testing process to support the development of native geographic LLMs.

Falls are a serious public health problem globally, particularly in acute care hospitals, where hospitalized patients are at high risk for falls and may experience adverse outcomes such as prolonged hospital stays. Multifactorial fall prevention programs can reduce the risk of falls and related injuries, but successful implementation requires active patient participation.

Researchers from the Shanghai Advanced Research Institute and collaborating institutions have achieved high-precision measurements of the ²⁷Al(γ,n)²⁶Al photoneutron cross section using quasi-monochromatic γbeams at the Shanghai Laser-Electron Gamma Source (SLEGS). By employing a novel flat-efficiency neutron detector array, the team reduced measurement uncertainties to below 4%, resolving discrepancies in existing experimental data and improving theoretical models for nuclear astrophysics. The results, spanning 13.2–21.7 MeV, provide critical insights into the production of ²⁶Al in cosmic environments and address inconsistencies with prior datasets.