|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Progress in phototaxis mechanism research and micromanipulatlon techniques of algae cells显示文摘趋光性的运动是一些微生物的一个特征,点亮环境的反应。大多数水藻有戏剧性地趋光性的回答,位于复杂生物、物理、光化学的机制下面被包含。与 micro/nano 和传感器技术的发展,大进步在水藻趋光性的研究被取得了。这篇评论文章总结在关于功能的趋光性的结构的研究取得的进步,相片反应过程的机制和在水藻的趋光性的 photodynamics,并且描述最近的发达微追踪的技术和微操作技术。而且基于我们的 o 研究结果,在趋光性和光合作用之间的潜在的关联被讨论,并且为趋光性的机制的未来研究的方向被建议。 | WEN Chenglu LI Heng WANG Pengbo LI Wei ZHAO Jingquan | 2007 | Progress in Natural Science:Materials International2007，17，3： | 0 |
| 2 | Urban 3D modeling using mobile laser scanning:a review显示文摘Mobile laser scanning(MLS)systems mainly comprise laser scanners and mobile mapping platforms.Typical MLS systems can acquire three-dimensional point clouds with 1-10cm point spacings at a normal driving or walking speed in streets or indoor environments.The efficiency and stability of these systems make them extremely useful for application in three-dimensional urban modeling.This paper reviews the latest advances of the LiDAR-based mobile mapping system(MMS)point cloud in the field of 3D modeling,including LiDAR simultaneous localization and mapping,point cloud registration,feature extraction,object extraction,semantic segmentation,and processing using deep learning.Furthermore,typical urban modeling applications based on MMS are also discussed. | Cheng WANG Chenglu WEN Yudi DAI Shangshu YU Minghao LIU | 2020 | Virtual Reality & Intelligent Hardware2020，2，3： | 0 |
| 3 | Construction of the glucose isomerase deficient strain of Streptomyces M1033 by homologous recombination显示文摘After the establishment of the transformation conditions of Streptomyces diastaticus No.7 Strain M1033, the integration plasmid pXW for homologous recombination, which contains a 600 bp fragment of incomplete Gl (G138P. G247D) gene, has been constructed in order to realize the stable overexpression of the Gl (G138P. G247D) which is valuable for large-scale industrial production. The G/gene’s disruption has been realized by pXW’s integration into M1033 chromosomes via homologous recombination and Gl deficient strain of Streptomyces M1033 has been obtained. The reliability of introduction of mutation has been proved by analysis of recombinant fragment and affirmance of existence of the mutation, as well as detection of the stability of the deficient strain. | XU Chong LIAO Jun XIE Wen CHENG Yang ZHU Guoping YANG Yonghui CHEN Chenglu TAO Limei NIU Liwen WANG Yuzhen | 2000 | Chinese Science Bulletin2000，45，1： | 0 |
| 4 | BLNet:Bidirectional learning network for point clouds显示文摘The key challenge in processing point clouds lies in the inherent lack of ordering and irregularity of the 3D points.By relying on per-point multi-layer perceptions(MLPs),most existing point-based approaches only address the first issue yet ignore the second one.Directly convolving kernels with irregular points will result in loss of shape information.This paper introduces a novel point-based bidirectional learning network(BLNet)to analyze irregular 3D points.BLNet optimizes the learning of 3D points through two iterative operations:feature-guided point shifting and feature learning from shifted points,so as to minimise intra-class variances,leading to a more regular distribution.On the other hand,explicitly modeling point positions leads to a new feature encoding with increased structure-awareness.Then,an attention pooling unit selectively combines important features.This bidirectional learning alternately regularizes the point cloud and learns its geometric features,with these two procedures iteratively promoting each other for more effective feature learning.Experiments show that BLNet is able to learn deep point features robustly and efficiently,and outperforms the prior state-of-the-art on multiple challenging tasks. | Wenkai Han Hai Wu Chenglu Wen Cheng Wang Xin Li | 2022 | Computational Visual Media2022，8，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员