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面向认知太阳风暴和保障航天安全的国家战略需求，中国近年来提出太阳与内日球立体探测卫星计划，拟适时部署环黄道面的拉格朗日点L3-L4-L5定点卫星星座和脱离黄道面的太阳极轨对偶卫星。通过该卫星计划的初步科学论证分析，建议将其科学目标凝练为太阳磁场、太阳风暴、太阳风，将其应用目标定位于日地空间天气预报，建议配置成像类、粒子类、波场类的综合科学载荷。此外，利用日地空间的三维磁流体数值模拟和计算机图形学的艺术可视化，形象地表达环黄道面卫星“对日凝视”和太阳极轨卫星“鸟瞰全景”的探测概念。中国太阳与内日球立体探测卫星计划将揭示太阳磁场的起源规律及其爆发机理、日地耦合系统的空间天气变化机理，并能够为日地空间天气三维数值建模提供观测数据驱动的初边值条件，必将极大推动空间天气的立体监测、前沿研究、精准预报的一体化进程。

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Medical zirconia ceramic (Y-TZP) is a good dental restoration material. To obtain good dental restoration performance, high manufacturing accuracy, especially surface roughness, is required. However, it is a hard, brittle material, which is difficult to machine. To improve the surface quality and processing efficiency of medical zirconia ceramic grinding, correlation analysis is conducted on the frequency bands of acoustic emission signals during the grinding process of medical zirconia ceramic. Twelve sets of characteristic values strongly related to grinding surface roughness in the sensitive frequency band signals of 840—850 kHz are extracted, and a random forest neural network with high prediction accuracy is constructed. Finally, medical zirconia ceramic grinding surface roughness is obtained. The maximum relative error of acoustic emission prediction is less than 8.37%, and the research results have great reference value for intelligent online monitoring of surface roughness in medical zirconia ceramic grinding. [ABSTRACT FROM AUTHOR]

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Inflammatory bowel disease （IBD） is a chronic condition characterised by recurrent inflammation of the intestines. Although the specific causes is not fully understood, it is generally believed to be caused by a combination of genetic factors, immune system abnormalities, environmental factors, and imbalances in the gut microbiota. The interaction of these factors may disrupt the intestinal environment, affecting the host's immune system, and ultimately triggering intestinal inflammation. This review discusses changes in the gut microbiota of IBD patients and explores corresponding treatment strategies. [ABSTRACT FROM AUTHOR]

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