目的探讨红细胞分布宽度(RDW)和血小板分布宽度(PDW)的变化在急性心肌梗死(AMI)治疗效果中的作用。方法选取2014年10月至2018年9月合肥市第三人民医院收治的110例急性心肌梗患者,根据治疗效果分为有效组和无效组。检测治疗前后的RDW和P...目的探讨红细胞分布宽度(RDW)和血小板分布宽度(PDW)的变化在急性心肌梗死(AMI)治疗效果中的作用。方法选取2014年10月至2018年9月合肥市第三人民医院收治的110例急性心肌梗患者,根据治疗效果分为有效组和无效组。检测治疗前后的RDW和PDW,并计算红细胞分布宽度变化值(RDW-C)、血小板分度宽度变化值(PDW-C),以及红细胞分布宽度变化率(RDW-Cr)、血小板分布宽度变化率(PDW-Cr)。结果有效组较无效组的RDW、PDW变化值(-1.01±3.25 vs 1.62±2.12,-1.10±4.5 vs 0.25±1.2)及变化率(-2.15±6.2 vs 3.10±6.8,-6.3±9.3 vs 1.45±7.1)显著提高(P<0.01)。多因素Logistic回归分析显示RDW-C(OR=1.012,95%CI:1.015~1.121)、PDW-C(OR=1.011,95%CI:1.019~1.082)是疗效的独立预测因素(P<0.01)。ROC曲线分析显示,RDW和PDW的变化值及变化率在评价治疗效果方面差异均有统计学意义(P<0.05)。结论RDW与PDW治疗前后变化值及变化率可用于急性心肌梗死治疗效果的评价。展开更多
采用水热-煅烧法制备了磁性镍铁尖晶石载体NiFe_(2)O_(4),再采用浸渍-还原法在载体上负载Ru纳米粒子制备Ru/NiFe_(2)O_(4)催化剂。采用X射线衍射(XRD)、N2吸附-脱附(BET)、NH3程序升温脱附(NH3-TPD)、H_(2)程序升温还原(H_(2)-TPR)、X...采用水热-煅烧法制备了磁性镍铁尖晶石载体NiFe_(2)O_(4),再采用浸渍-还原法在载体上负载Ru纳米粒子制备Ru/NiFe_(2)O_(4)催化剂。采用X射线衍射(XRD)、N2吸附-脱附(BET)、NH3程序升温脱附(NH3-TPD)、H_(2)程序升温还原(H_(2)-TPR)、X射线光电子能谱(XPS)和电感耦合等离子体发射光谱(ICP-OES)测试对催化剂进行表征分析。结果表明,Ru/NiFe_(2)O_(4)催化剂表面氧物种丰富,相较于载体,负载Ru后催化剂比表面积和表面酸量增加,Ru与载体存在相互作用,这可能是催化剂高活性和高稳定性的关键。将催化剂用于5-羟甲基糠醛(HMF)的选择性氧化,负载Ru后,催化剂催化活性显著提升。对反应条件进行优化,在添加0.08 g KHCO3,氧化剂O2压力为1 MPa,反应温度为80℃,使用0.1 g Ru/NiFe_(2)O_(4)催化剂,在水溶液中反应12 h HMF能完全转化,2,5-呋喃二甲酸(FDCA)产率为98.1%。Ru/NiFe_(2)O_(4)循环使用5次后仍能保持较高的活性,催化剂上活性组分Ru不易浸出,并且催化剂具有磁性能便于与反应溶液分离。为今后工业化催化HMF高效选择性氧化合成FDCA提供参考。展开更多
With the rapid development of economy, the scale of city has become more and more large. Meanwhile, the population also grows rapidly. Although the standard of living condition has been improved greatly, industry and ...With the rapid development of economy, the scale of city has become more and more large. Meanwhile, the population also grows rapidly. Although the standard of living condition has been improved greatly, industry and domestic waste not only infl uence the quality of life by polluting the environment, but also become a signifi cant obstacle factor for economic development. waste power generation or waste-to-energy(WTE) is using the heat which is from garbage incinerator to generate electricity. This method can solve the problem of waste and generate the social benefi t, but by using the power on the internet to generate the economy benefit. In this paper, combined the method of FAHP and TOPSIS, a quotas system is set up to evaluate the social and economic benefi ts of the WTE project in Xiamen. Some advice is proposed for the Xiamen WTE project.展开更多
文摘目的探讨红细胞分布宽度(RDW)和血小板分布宽度(PDW)的变化在急性心肌梗死(AMI)治疗效果中的作用。方法选取2014年10月至2018年9月合肥市第三人民医院收治的110例急性心肌梗患者,根据治疗效果分为有效组和无效组。检测治疗前后的RDW和PDW,并计算红细胞分布宽度变化值(RDW-C)、血小板分度宽度变化值(PDW-C),以及红细胞分布宽度变化率(RDW-Cr)、血小板分布宽度变化率(PDW-Cr)。结果有效组较无效组的RDW、PDW变化值(-1.01±3.25 vs 1.62±2.12,-1.10±4.5 vs 0.25±1.2)及变化率(-2.15±6.2 vs 3.10±6.8,-6.3±9.3 vs 1.45±7.1)显著提高(P<0.01)。多因素Logistic回归分析显示RDW-C(OR=1.012,95%CI:1.015~1.121)、PDW-C(OR=1.011,95%CI:1.019~1.082)是疗效的独立预测因素(P<0.01)。ROC曲线分析显示,RDW和PDW的变化值及变化率在评价治疗效果方面差异均有统计学意义(P<0.05)。结论RDW与PDW治疗前后变化值及变化率可用于急性心肌梗死治疗效果的评价。
文摘采用水热-煅烧法制备了磁性镍铁尖晶石载体NiFe_(2)O_(4),再采用浸渍-还原法在载体上负载Ru纳米粒子制备Ru/NiFe_(2)O_(4)催化剂。采用X射线衍射(XRD)、N2吸附-脱附(BET)、NH3程序升温脱附(NH3-TPD)、H_(2)程序升温还原(H_(2)-TPR)、X射线光电子能谱(XPS)和电感耦合等离子体发射光谱(ICP-OES)测试对催化剂进行表征分析。结果表明,Ru/NiFe_(2)O_(4)催化剂表面氧物种丰富,相较于载体,负载Ru后催化剂比表面积和表面酸量增加,Ru与载体存在相互作用,这可能是催化剂高活性和高稳定性的关键。将催化剂用于5-羟甲基糠醛(HMF)的选择性氧化,负载Ru后,催化剂催化活性显著提升。对反应条件进行优化,在添加0.08 g KHCO3,氧化剂O2压力为1 MPa,反应温度为80℃,使用0.1 g Ru/NiFe_(2)O_(4)催化剂,在水溶液中反应12 h HMF能完全转化,2,5-呋喃二甲酸(FDCA)产率为98.1%。Ru/NiFe_(2)O_(4)循环使用5次后仍能保持较高的活性,催化剂上活性组分Ru不易浸出,并且催化剂具有磁性能便于与反应溶液分离。为今后工业化催化HMF高效选择性氧化合成FDCA提供参考。
文摘With the rapid development of economy, the scale of city has become more and more large. Meanwhile, the population also grows rapidly. Although the standard of living condition has been improved greatly, industry and domestic waste not only infl uence the quality of life by polluting the environment, but also become a signifi cant obstacle factor for economic development. waste power generation or waste-to-energy(WTE) is using the heat which is from garbage incinerator to generate electricity. This method can solve the problem of waste and generate the social benefi t, but by using the power on the internet to generate the economy benefit. In this paper, combined the method of FAHP and TOPSIS, a quotas system is set up to evaluate the social and economic benefi ts of the WTE project in Xiamen. Some advice is proposed for the Xiamen WTE project.