| 5 | Accelerated design of high-performance Mg-Mn-based magnesium alloys based on novel bayesian optimization显示文摘Magnesium(Mg),being the lightest structural metal,holds immense potential for widespread applications in various fields.The development of high-performance and cost-effective Mg alloys is crucial to further advancing their commercial utilization.With the rapid advancement of machine learning(ML)technology in recent years,the“data-driven''approach for alloy design has provided new perspectives and opportunities for enhancing the performance of Mg alloys.This paper introduces a novel regression-based Bayesian optimization active learning model(RBOALM)for the development of high-performance Mg-Mn-based wrought alloys.RBOALM employs active learning to automatically explore optimal alloy compositions and process parameters within predefined ranges,facilitating the discovery of superior alloy combinations.This model further integrates pre-established regression models as surrogate functions in Bayesian optimization,significantly enhancing the precision of the design process.Leveraging RBOALM,several new high-performance alloys have been successfully designed and prepared.Notably,after mechanical property testing of the designed alloys,the Mg-2.1Zn-2.0Mn-0.5Sn-0.1Ca alloy demonstrates exceptional mechanical properties,including an ultimate tensile strength of 406 MPa,a yield strength of 287 MPa,and a 23%fracture elongation.Furthermore,the Mg-2.7Mn-0.5Al-0.1Ca alloy exhibits an ultimate tensile strength of 211 MPa,coupled with a remarkable 41%fracture elongation. | Xiaoxi Mi Lili Dai Xuerui Jing Jia She Bjørn Holmedal Aitao Tang Fusheng Pan | 2024 | Journal of Magnesium and Alloys2024，12，2： | 0 |
| 6 | Synergistic Effect in Special Selectivity Mixed Gas Chromatographic Stationary Phase in the Separation of Aromatic Compounds显示文摘The gas chromatographic separations of aromatic compounds using special mixed sta-tionary phases consisting of pp-p-CD+AgNO3, pp-p-CD+TlNO3, pp-β-CD+di-n-butly phthalate,pp-p-CD+BPBHpB liquid crystalline, and bentone-34+AgNO3 were investigated. Besides pp-β-CD+di-n-butyl phthalate, most of the separations deviated from the additivity and a synergisticeffect was observed. The separation effects depend on the temperature and how mixing is accom-plished. | Yuan, LM Fu, RN Gui, SH Chen, XX Dai, RJ | 1998 | Chinese Chemical Letters1998，9，2： | 0 |
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