Objective To explore the effect of Chinese herbs on PRLR, PR, ER mRNA of decidue in Bromocriptine-induced hypoprolactin abortion rat model from gene transcription level, and observe the changes of blood PRL, P, E2.Met...Objective To explore the effect of Chinese herbs on PRLR, PR, ER mRNA of decidue in Bromocriptine-induced hypoprolactin abortion rat model from gene transcription level, and observe the changes of blood PRL, P, E2.Methods RT-PCR method was taken to analyses the differences of PRLR, PR, ER mRNA in decidue between model group (A group) and model + herbs group (A + H group); RIA was taken to measure the serum levels of PRL, P, E2. Results PRLR, PR mRNA expression in decidue of Group A was significantly lower than the A + H group (P<0. 01) , no difference in ER mRNA expression (P>0. 05); the abortion rate of Group A was 67 %, Group A+H was 17% , the difference was significant; as for the PRL and P level of day 7-1.0, the A group was significantly lower than the A+H group (P<0. 05).Conclusion Bromocriptine could induce abortion by declining the blood PRL, P level and downregulating PRLR, PR mRNA expression in decidue. Chinese herbs might maintain pregnancy by promoting PRL, P secretion and upregulating PRLR, PR mRNA expression in decidue.展开更多
提出了一种Ga Al As红外发光二极管自动温控RTS(Random Telegraph Signal)噪声测试新方法。通过分析Ga Al As IRLED的RTS噪声产生机理及特性,建立了Ga Al As IRLED的RTS噪声模型,设计了自动温控噪声测试系统。实验结果表明,该方法能准...提出了一种Ga Al As红外发光二极管自动温控RTS(Random Telegraph Signal)噪声测试新方法。通过分析Ga Al As IRLED的RTS噪声产生机理及特性,建立了Ga Al As IRLED的RTS噪声模型,设计了自动温控噪声测试系统。实验结果表明,该方法能准确的测量Ga Al As IRLED的RTS噪声,得到与噪声模型一致的结果,为Ga Al As IRLED可靠性的噪声表征提供了实验与理论依据。展开更多
液晶面板喷墨打印表面缺陷检测中存在目标小、样本少、纹理背景干扰等问题,应用传统图像处理算法检测精度低、泛化性差,针对以上问题提出了一种改进RT-DETR(real-time detection transformer)的目标检测算法。改进RT-DETR算法通过将主...液晶面板喷墨打印表面缺陷检测中存在目标小、样本少、纹理背景干扰等问题,应用传统图像处理算法检测精度低、泛化性差,针对以上问题提出了一种改进RT-DETR(real-time detection transformer)的目标检测算法。改进RT-DETR算法通过将主干网络ResNet模型替换为特征提取性能更优的ConvNeXt模型,提高算法整体检测精度。设计了基于通道注意力的增强通道压缩模块,使算法更有效地消除背景干扰专注于定位缺陷目标,加快算法收敛,提高小目标检测精度。在构建的喷墨打印缺陷数据集训练实验上,改进RT-DETR算法检测平均精度mAP(mean average precision)为80.58%,较原始RT-DETR算法提升了2.89%,较原始DETR算法提升了15.88%,检测速度达到20 FPS(frames per second),改进RT-DETR算法的综合检测性能更优。改进RT-DETR算法在小目标检测数据集VisDrone训练实验上表现出良好的通用性,为其他工业场景下的表面小目标缺陷检测提供了参考价值。展开更多
基金This study was sponsored by Shanghai Sci-Tech Dvelopment Fund.No.981
文摘Objective To explore the effect of Chinese herbs on PRLR, PR, ER mRNA of decidue in Bromocriptine-induced hypoprolactin abortion rat model from gene transcription level, and observe the changes of blood PRL, P, E2.Methods RT-PCR method was taken to analyses the differences of PRLR, PR, ER mRNA in decidue between model group (A group) and model + herbs group (A + H group); RIA was taken to measure the serum levels of PRL, P, E2. Results PRLR, PR mRNA expression in decidue of Group A was significantly lower than the A + H group (P<0. 01) , no difference in ER mRNA expression (P>0. 05); the abortion rate of Group A was 67 %, Group A+H was 17% , the difference was significant; as for the PRL and P level of day 7-1.0, the A group was significantly lower than the A+H group (P<0. 05).Conclusion Bromocriptine could induce abortion by declining the blood PRL, P level and downregulating PRLR, PR mRNA expression in decidue. Chinese herbs might maintain pregnancy by promoting PRL, P secretion and upregulating PRLR, PR mRNA expression in decidue.
文摘提出了一种Ga Al As红外发光二极管自动温控RTS(Random Telegraph Signal)噪声测试新方法。通过分析Ga Al As IRLED的RTS噪声产生机理及特性,建立了Ga Al As IRLED的RTS噪声模型,设计了自动温控噪声测试系统。实验结果表明,该方法能准确的测量Ga Al As IRLED的RTS噪声,得到与噪声模型一致的结果,为Ga Al As IRLED可靠性的噪声表征提供了实验与理论依据。
文摘液晶面板喷墨打印表面缺陷检测中存在目标小、样本少、纹理背景干扰等问题,应用传统图像处理算法检测精度低、泛化性差,针对以上问题提出了一种改进RT-DETR(real-time detection transformer)的目标检测算法。改进RT-DETR算法通过将主干网络ResNet模型替换为特征提取性能更优的ConvNeXt模型,提高算法整体检测精度。设计了基于通道注意力的增强通道压缩模块,使算法更有效地消除背景干扰专注于定位缺陷目标,加快算法收敛,提高小目标检测精度。在构建的喷墨打印缺陷数据集训练实验上,改进RT-DETR算法检测平均精度mAP(mean average precision)为80.58%,较原始RT-DETR算法提升了2.89%,较原始DETR算法提升了15.88%,检测速度达到20 FPS(frames per second),改进RT-DETR算法的综合检测性能更优。改进RT-DETR算法在小目标检测数据集VisDrone训练实验上表现出良好的通用性,为其他工业场景下的表面小目标缺陷检测提供了参考价值。
