In order to realize mass transfer analysis for microwave hot in-place recycling of asphalt pavements, a volume element is established including asphalt mixtures, liquid water and vapor. A mass transfer control model i...In order to realize mass transfer analysis for microwave hot in-place recycling of asphalt pavements, a volume element is established including asphalt mixtures, liquid water and vapor. A mass transfer control model is built by the theory of multiphysics, phase transformation and diffusion. The model contains continuity equation, energy conservation equation, movement equation and vapor diffusion equation. To gain the solution of the mass transfer model, the formulas are simplified to one-dimensional differential equations. And then a mathematical model of boundary conditions is established. The mass transfer velocity and dissipative energy are obtained in different moisture contents through simulation of asphalt pavements recycling. The result indicates that when initial moisture content is certain, mass transfer velocity is almost uniform in depth direction at the same heating time and enertrv absorbed by water i,~ descendino with denletion of moisture.展开更多
目的系统评价人端粒酶逆转录酶(hTERT)在鉴别良恶性乳腺肿瘤中的临床价值。方法检索中国生物医学文献服务系统、中国知网、万方、维普、PubMed、The Cochrane Library、Web of Science、EMbase数据库中有关hTERT检测与乳腺肿瘤良恶性相...目的系统评价人端粒酶逆转录酶(hTERT)在鉴别良恶性乳腺肿瘤中的临床价值。方法检索中国生物医学文献服务系统、中国知网、万方、维普、PubMed、The Cochrane Library、Web of Science、EMbase数据库中有关hTERT检测与乳腺肿瘤良恶性相关的文章,检索时间均从建库至2019年10月9日。采用Stata15.0和Meta-Disc1.4软件进行统计分析。结果共纳入17个研究,共计1436例患者(恶性肿瘤组852例,对照组584例)。结果显示,hTERT诊断乳腺恶性肿瘤的合并灵敏度(Sen合并)、合并特异度(Spe合并)、合并阳性似然比(+LR合并)、合并阴性似然比(-LR合并)和合并诊断比值比(DOR合并)分别为0.81(95%CI:0.79~0.84)、0.83(95%CI:0.79~0.86)、4.75(95%CI:3.35~6.74)、0.21(95%CI:0.15~0.30)、26.93(95%CI:15.02~48.28);汇总受试者工作特征(SROC)曲线下面积(AUC)=0.9065,Q*=0.8383。结论hTERT检测有助于临床鉴别乳腺肿瘤良恶性。展开更多
基金Supported by the National Natural Science Foundation of China （51106001） Anhui College Provincial Natural Science Research Project （No. KJ2011B018）
文摘In order to realize mass transfer analysis for microwave hot in-place recycling of asphalt pavements, a volume element is established including asphalt mixtures, liquid water and vapor. A mass transfer control model is built by the theory of multiphysics, phase transformation and diffusion. The model contains continuity equation, energy conservation equation, movement equation and vapor diffusion equation. To gain the solution of the mass transfer model, the formulas are simplified to one-dimensional differential equations. And then a mathematical model of boundary conditions is established. The mass transfer velocity and dissipative energy are obtained in different moisture contents through simulation of asphalt pavements recycling. The result indicates that when initial moisture content is certain, mass transfer velocity is almost uniform in depth direction at the same heating time and enertrv absorbed by water i,~ descendino with denletion of moisture.
文摘目的系统评价人端粒酶逆转录酶(hTERT)在鉴别良恶性乳腺肿瘤中的临床价值。方法检索中国生物医学文献服务系统、中国知网、万方、维普、PubMed、The Cochrane Library、Web of Science、EMbase数据库中有关hTERT检测与乳腺肿瘤良恶性相关的文章,检索时间均从建库至2019年10月9日。采用Stata15.0和Meta-Disc1.4软件进行统计分析。结果共纳入17个研究,共计1436例患者(恶性肿瘤组852例,对照组584例)。结果显示,hTERT诊断乳腺恶性肿瘤的合并灵敏度(Sen合并)、合并特异度(Spe合并)、合并阳性似然比(+LR合并)、合并阴性似然比(-LR合并)和合并诊断比值比(DOR合并)分别为0.81(95%CI:0.79~0.84)、0.83(95%CI:0.79~0.86)、4.75(95%CI:3.35~6.74)、0.21(95%CI:0.15~0.30)、26.93(95%CI:15.02~48.28);汇总受试者工作特征(SROC)曲线下面积(AUC)=0.9065,Q*=0.8383。结论hTERT检测有助于临床鉴别乳腺肿瘤良恶性。
