目的基于MIMIC-Ⅳ数据库的大型队列,系统探讨非ICU住院及入住重症监护病房(intensive care unit,ICU)的结节性多动脉炎(polyarteritis nodosa,PAN)患者1年死亡结局的相关风险因素。方法从MIMIC-Ⅳ数据库(版本3.0)中提取PAN患者的临床资...目的基于MIMIC-Ⅳ数据库的大型队列,系统探讨非ICU住院及入住重症监护病房(intensive care unit,ICU)的结节性多动脉炎(polyarteritis nodosa,PAN)患者1年死亡结局的相关风险因素。方法从MIMIC-Ⅳ数据库(版本3.0)中提取PAN患者的临床资料。采用Logistic回归分析、Cox比例风险回归模型及Kaplan-Meier(KM)生存曲线,对相关临床指标与非ICU住院及ICU收治PAN患者1年死亡率之间的关联性进行评估。结果本研究共纳入110例非ICU住院PAN患者及38例ICU收治PAN患者。多因素Logistic回归与Cox回归分析结果显示,血红蛋白水平降低是非ICU住院PAN患者1年死亡率的显著预测因素,且为独立危险因素。进一步分析表明,简化急性生理学评分Ⅱ(simplified acute physiology scoreⅡ,SAPSⅡ)是ICU收治PAN患者1年死亡率的显著预测指标及独立危险因素。KM生存曲线分析显示,高SAPSⅡ评分组ICU-PAN患者的生存率显著低于低评分组(P=0.012)。结论低血红蛋白水平是非ICU住院PAN患者1年死亡风险升高的独立危险因素。此外,本研究首次明确SAPSⅡ评分是ICU-PAN患者1年死亡的独立危险因素,且当SAPSⅡ评分超过45分时,患者死亡风险显著增加。展开更多
This study introduces superabsorbent polymers(SAP)into recycled concrete and,through freeze-thaw cycle tests,unconfined compressive strength tests,and nuclear magnetic resonance(NMR)analysis,evaluates the freeze-thaw ...This study introduces superabsorbent polymers(SAP)into recycled concrete and,through freeze-thaw cycle tests,unconfined compressive strength tests,and nuclear magnetic resonance(NMR)analysis,evaluates the freeze-thaw resistance and durability of recycled concrete samples under varying freeze-thaw cycles.The results indicate that an appropriate addition of SAP significantly enhances the freeze-thaw resistance of recycled concrete.After 200 freeze-thaw cycles,the RS0.6 sample retained good surface integrity,demonstrating the best performance.Compared to NAC,its mass loss decreased by 1.16%,the relative dynamic modulus improved by 7.01%,and the compressive strength loss rate decreased by 5.41%.Additionally,T2 spectrum analysis revealed that adding SAP optimized the pore structure of recycled concrete and mitigated pore development during freeze-thaw cycles.As the number of freeze-thaw cycles increased,the RS0.3 and RS0.6 samples demonstrated superior frost resistance compared to NAC.However,an excessive amount of SAP increased pore expansion during subsequent freeze-thaw cycles,ultimately weakening frost resistance.展开更多
传统对账模式因系统割裂、人工干预多等问题,难以满足精细化管理和风险防控需求。文章以某省级电网企业为研究对象,通过SAP企业资源计划系统(Systems,Applications and Products in Data Processing-Enterprise Resource Planning,SAP-E...传统对账模式因系统割裂、人工干预多等问题,难以满足精细化管理和风险防控需求。文章以某省级电网企业为研究对象,通过SAP企业资源计划系统(Systems,Applications and Products in Data Processing-Enterprise Resource Planning,SAP-ERP)与财务管控系统的技术集成,构建关联交易实时对账机制。研究聚焦系统架构兼容性改造、数据接口标准化设计及动态监控流程优化,提出科目映射规则、时间戳同步机制、差异分类处理等创新方案。实践表明,该机制可将关联交易对账时效从传统T+1提升至T+0,差异识别准确率达98%,人工处理成本降低60%,为电网企业数字化转型提供可复制的解决方案。展开更多
基金Funded by the Science and Technology Program of Gansu Province(Nos.25JRRA497,23ZDFA017)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB0950000)High-level Talent Funding of Kashi。
文摘This study introduces superabsorbent polymers(SAP)into recycled concrete and,through freeze-thaw cycle tests,unconfined compressive strength tests,and nuclear magnetic resonance(NMR)analysis,evaluates the freeze-thaw resistance and durability of recycled concrete samples under varying freeze-thaw cycles.The results indicate that an appropriate addition of SAP significantly enhances the freeze-thaw resistance of recycled concrete.After 200 freeze-thaw cycles,the RS0.6 sample retained good surface integrity,demonstrating the best performance.Compared to NAC,its mass loss decreased by 1.16%,the relative dynamic modulus improved by 7.01%,and the compressive strength loss rate decreased by 5.41%.Additionally,T2 spectrum analysis revealed that adding SAP optimized the pore structure of recycled concrete and mitigated pore development during freeze-thaw cycles.As the number of freeze-thaw cycles increased,the RS0.3 and RS0.6 samples demonstrated superior frost resistance compared to NAC.However,an excessive amount of SAP increased pore expansion during subsequent freeze-thaw cycles,ultimately weakening frost resistance.
文摘传统对账模式因系统割裂、人工干预多等问题,难以满足精细化管理和风险防控需求。文章以某省级电网企业为研究对象,通过SAP企业资源计划系统(Systems,Applications and Products in Data Processing-Enterprise Resource Planning,SAP-ERP)与财务管控系统的技术集成,构建关联交易实时对账机制。研究聚焦系统架构兼容性改造、数据接口标准化设计及动态监控流程优化,提出科目映射规则、时间戳同步机制、差异分类处理等创新方案。实践表明,该机制可将关联交易对账时效从传统T+1提升至T+0,差异识别准确率达98%,人工处理成本降低60%,为电网企业数字化转型提供可复制的解决方案。
