Results 111 to 120 of about 5,690 (152)

基于图像融合技术与改进Faster R-CNN的绝缘子故障识别

Gaoya dianqi
为提高地铁接触网绝缘子故障检测精度，文中提出一种融合双流注意力生成对抗网络（DSAGAN）与改进Faster R-CNN的检测框架。针对多源图像特征融合难题，通过DSAGAN实现接触网绝缘子红外与可见光图像的高效融合：生成器采用注意力机制强化关键特征提取，判别器引入最小二乘损失函数替代传统交叉熵，有效保留纹理细节并提升网络稳定性。在故障识别阶段，改进Faster R-CNN模型采用ResNet101替代VGG16作为主干网络，结合残差连接缓解梯度异常问题，并在RPN层嵌入非极大值抑制（NMS ...
耿占权, 苏飞
doaj  

[A dual-center study of enhanced CT-based nomograms predicts spontaneous portosystemic shunts on initial hemorrhage from rupture of esophageal gastric varices in cirrhosis]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Yan XZ, Chu JH, Li B, Chen XY, Yuan BS, Li HY, Wang GL, Ji Q.   +7 more
europepmc   +1 more source

[A case of segmental atrophy of the liver in children]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Qiu YL, Mao Y, Lu CL.
europepmc   +1 more source

[Indicative effect of indocyanine green-near-infrared fluorescence imaging in the thickness of necrotic dermal tissue in porcine burn wounds]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Zhang YS, Pan X, Ge YL, Yue JC, Song YX, Song WY, Zhao R.   +6 more
europepmc   +1 more source

Ｌｕｃｉｆｅｒａｓｅ２／ｍＫａｔｅ２双报告基因对小鼠骨髓间充质干细胞的标记及活体光学成像研究

Zhongshan Daxue xuebao. Yixue kexue ban, 2014
摘 要： 【目的】 Ｌｕｃｉｆｅｒａｓｅ２／ｍＫａｔｅ２双报告基因标记小鼠骨髓间充质干细胞（ｍＭＳＣ），并进行活体生物发光和荧光双模态光学成像研究。【方法】全骨髓细胞贴壁分离法提取ｍＭＳＣ，进行细胞表面标志物和多向分化潜能的鉴定；ＣＭＶ－Ｌｕｃｉｆｅｒａｓｅ２－ｍＫａｔｅ２慢病毒感染ｍＭＳＣ，根据细胞内远红荧光蛋白ｍＫａｔｅ２的表达水平评估转染效率并利用流式细胞仪进行纯化筛选；对筛选后的ｍＭＳＣ（ｍＭＳＣ－ＣＭＶ－Ｌｕｃ２－ｍＫａｔｅ２，ｍＫａｔｅ２＋＞９５％）进行活体生物发光和荧光双模态光学成像 ...
doaj  

[Interpretation of the Expert Consensus for Full Course Management of Plexiform Neurofibroma (2025 Edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Group Of Neurofibromatosis Plastic And Reconstructive Surgery Society Of Chinese Medical Association, China Rare Disease Alliance Neurofibromatosis Expert Committee.   +1 more
europepmc   +1 more source

[A high temporal resolution dynamic T₂*W imaging study based on step oxygen stimulation of rat kidneys]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Sun S, Tao Q, Zhao K, Hu Q, Feng Y.
europepmc   +1 more source

[Defect modification of calcium silicate and its application in oral bacteriostasis and tooth remineralization]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Hu Y, Zhang S, Zhang J, Luo H, Li Y, Zhang J, Chen X.   +6 more
europepmc   +1 more source

[Nanomaterial-driven Lateral Flow Immunoassay: Technological Development and Application]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Zheng J, Hu X, Gu B.
europepmc   +1 more source

[Robotic gastrectomy: Research progress and practical challenges]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li B, Liang H.
europepmc   +1 more source