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3篇 您的检索式:作者名="Chuanqi Peng"
    题名 作者 年代 出处 被引量
1A Robust Gaussian Mixture Model for Mobile Robots’ Vision-based Pose Estimation显示文摘In dynamic environments, the moving landmarks can make the accuracy of traditional vision-based pose estimation worse or even failure. To solve this problem, a robust Gaussian mixture model for vision-based pose estimation is proposed. The motion index is added to the traditional graph-based vision-based pose estimation model to describe landmarks’ moving probability, transforming the classic Gaussian model to Gaussian mixture model, which can reduce the influence of moving landmarks for optimization results. To improve the algorithm’s robustness to noise, the covariance inflation model is employed in residual equations. The expectation maximization method for solving the Gaussian mixture problem is derived in detail, transforming the problem into classic iterative least square problem. Experimental results demonstrate that in dynamic environments, the proposed method outperforms the traditional method both in absolute accuracy and relative accuracy, while maintains high accuracy in static environments. The proposed method can effectively reduce the influence of the moving landmarks in dynamic environments, which is more suitable for the autonomous localization of mobile robots.Chuanqi CHENG Xiangyang HAO Jiansheng LI Peng HU Xu ZHANG 2019Journal of Geodesy and Geoinformation Science2019,2,3:4
2Targeting orthotopic gliomas with renal-clearable luminescent gold nanoparticles显示文摘在 nanomedicine 的主要临床的翻译挑战是在主要机关与举起和非可能减解的 nanoparticles (NP ) 的长期的保留联系的毒性的潜力。经历肾的清理的无机的 NP 的发展能潜在地解决这颗重要 biosafety 担心。然而,能被肾排泄的无机的 NP 是否仍然保持能够与差的渗透指向肿瘤,仍然保持不清楚。Glioblastoma multiforme,最恶意的 orthotopic 大脑肿瘤,因为血大脑障碍和反应 microglia 和 macroglia 的柔韧的血肿瘤障碍,在肿瘤微型环境为 NP 交货提出唯一的挑战。此处,我们使用了 orthotopic 调查在直径的 3 nm 的谷胱甘肽涂的金 nanoparticles (AuNPs ) 的被动指向的鼠科的 glioma 模型经历没能经历肾的清理的肾的清理和 18-nm AuNPs。显著地,我们报导 3-nm AuNPs 能与更高的效率指向 intracranial 肿瘤纸巾(2.3ver 在 1.0 妈骑车的 100Chuanqi Peng Xiaofei Gao Jing Xu Bujie Du Xuhui Ning Shaoheng Tang Robert M. Bachoo Mengxiao Yu Woo-Ping Ge Jie Zheng 2017Nano Research2017,10,4:3
3Songjianghe biotite monzonitic granite zircon U-Pb geochronology and geochemical significance显示文摘The authors studied geochronology and geochemical data of the Songjianghe biotite monzogranite in the southern Zhangguangcai Range in order to determine its formation age,magma source,and tectonic environment. The results indicate that the Songjianghe biotite monzogranite was formed in the Middle Jurassic with an age of 168. 2 ± 2. 0 Ma( MSWD = 0. 93). The monzogranite was characterized by high alkali and low Ca O and Mg O,belonging to high-potassium calc-alkaline,metaluminous I-type granite. The rock is enriched in large ion lithophile elements such as Rb,Ba,and K and strongly depleted high field strength elements such as P,Ti,Nb,and Ta. It is concluded that the Songjianghe biotite monzogranite was derived from partial melting of amphibolite facies metamorphism mafic lower-crust and its formation was controlled by the Pacific Plate subduction.WANG Guozhi LI Bile PENG Bo NING Chuanqi YANG Wenlong 2016Global Geology2016,19,3:0
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