To improve the performance of asphalt pavement, the dynamic and static tests of asphalt were used to measure its viscoelastic properties under different time. Based on the obtained data of static creep compliances and...To improve the performance of asphalt pavement, the dynamic and static tests of asphalt were used to measure its viscoelastic properties under different time. Based on the obtained data of static creep compliances and dynamic compliances according to the static creep test and dynamic test of asphalt using the dynamic shear rheometer, the discrete retardation time spectra were attained using the non-linear regression method. All viscoelastic functions are mathematically equivalent and belong to the same retardation time spectra, so the dynamic compliances of asphalt were converted to the static creep compliance using the retardation time spectra. Good correlations were found between calculation results and measurement results. In accordance to these findings, the retardation time spectra can accurately transform static and dynamic viscoelastic functions. Therefore, we can obtain viscoelastic properties over much larger time or frequency region than measurement results.展开更多
目的探究妊娠期糖尿病患者护理中以问题为基础(problem based learning,PBL)式健康教育的应用价值。方法选取2020年1月—2022年2月泉州市第一医院120例妊娠期糖尿病患者作为研究对象。将于2020年1月—2021年1月在本院接受治疗的60例妊...目的探究妊娠期糖尿病患者护理中以问题为基础(problem based learning,PBL)式健康教育的应用价值。方法选取2020年1月—2022年2月泉州市第一医院120例妊娠期糖尿病患者作为研究对象。将于2020年1月—2021年1月在本院接受治疗的60例妊娠期糖尿病患者纳入参照组,采用常规护理;并将2021年2月—2022年2月在本院接受治疗的60例妊娠期糖尿病患者纳入研究组,采用PBL式健康教育。观察不同护理模式在妊娠期糖尿病患者护理中的应用价值。结果两组患者护理后血糖水平均低于护理前,且研究组护理后血糖水平均低于参照组,差异有统计学意义(P<0.05);研究组护理总依从率高于参照组,差异有统计学意义(P<0.05);护理后两组患者生活质量各项评分均高于护理前,研究组生活质量各项评分均高于参照组,差异有统计学意义(P<0.05)。结论妊娠期糖尿病患者护理中应用PBL式健康教育,临床护理效果显著,改善患者血糖水平的同时,还可提高患者护理依从性并改善患者生活质量。展开更多
基金Sponsored by the Post-doctoral Innovation Science Foundation of South China University of Technology(Grant No.20080222)
文摘To improve the performance of asphalt pavement, the dynamic and static tests of asphalt were used to measure its viscoelastic properties under different time. Based on the obtained data of static creep compliances and dynamic compliances according to the static creep test and dynamic test of asphalt using the dynamic shear rheometer, the discrete retardation time spectra were attained using the non-linear regression method. All viscoelastic functions are mathematically equivalent and belong to the same retardation time spectra, so the dynamic compliances of asphalt were converted to the static creep compliance using the retardation time spectra. Good correlations were found between calculation results and measurement results. In accordance to these findings, the retardation time spectra can accurately transform static and dynamic viscoelastic functions. Therefore, we can obtain viscoelastic properties over much larger time or frequency region than measurement results.
文摘目的探究妊娠期糖尿病患者护理中以问题为基础(problem based learning,PBL)式健康教育的应用价值。方法选取2020年1月—2022年2月泉州市第一医院120例妊娠期糖尿病患者作为研究对象。将于2020年1月—2021年1月在本院接受治疗的60例妊娠期糖尿病患者纳入参照组,采用常规护理;并将2021年2月—2022年2月在本院接受治疗的60例妊娠期糖尿病患者纳入研究组,采用PBL式健康教育。观察不同护理模式在妊娠期糖尿病患者护理中的应用价值。结果两组患者护理后血糖水平均低于护理前,且研究组护理后血糖水平均低于参照组,差异有统计学意义(P<0.05);研究组护理总依从率高于参照组,差异有统计学意义(P<0.05);护理后两组患者生活质量各项评分均高于护理前,研究组生活质量各项评分均高于参照组,差异有统计学意义(P<0.05)。结论妊娠期糖尿病患者护理中应用PBL式健康教育,临床护理效果显著,改善患者血糖水平的同时,还可提高患者护理依从性并改善患者生活质量。
