Results 61 to 70 of about 306,424 (265)

Extended-State-Observer-Based Collision-Free Guidance Law for Target Tracking of Autonomous Surface Vehicles with Unknown Target Dynamics

Complexity, 2018
This paper is concerned with the target tracking problem of an autonomous surface vehicle in the presence of a maneuvering target. The velocity information of target is totally unknown to the follower vehicle, and only the relative distance and angle ...
Shengnan Gao, Zhouhua Peng, Dan Wang, Lu Liu   +3 more
doaj   +1 more source

Target-Aware Deep Tracking [PDF]

2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019
Existing deep trackers mainly use convolutional neural networks pre-trained for generic object recognition task for representations. Despite demonstrated successes for numerous vision tasks, the contributions of using pre-trained deep features for visual tracking are not as significant as that for object recognition.
Xin Li 0034, Chao Ma 0004, Baoyuan Wu, Zhenyu He 0001, Ming-Hsuan Yang 0001   +4 more
openaire   +2 more sources

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Engineered bacterial therapy suppresses Enterohemorrhagic Escherichia coli through metabolic competition and virulence silencing

Nature Communications
Enterohemorrhagic Escherichia coli (EHEC) is a severe foodborne pathogen that can lead to hemolytic uremic syndrome. However, antibiotics are contraindicated for EHEC treatment due to toxin release and gut microbiota disruption.
Guozhen Ma, Ruiying Liu, Xueping Li, Jialin Wu, Yuanyuan Niu, Sheng Wang, Ziwei Chen, Xudong Qin, Qian Wang, Junyue Wang, Jiamin Qian, Mingqing Zhang, Yu Pang, Yamin Sun, Guosheng Tang, Tao Wang, Yutao Liu   +16 more
doaj   +1 more source

Research on Lightweight Tracking of Small-Sized UAVs Based on the Improved YOLOv8N-Drone Architecture

Drones
Traditional unmanned aerial vehicle (UAV) detection and tracking methods have long faced the twin challenges of high cost and poor efficiency. In real-world battlefield environments with complex backgrounds, occlusions, and varying speeds, existing ...
Yongjuan Zhao, Qiang Ma, Guannan Lei, Lijin Wang, Chaozhe Guo   +4 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Dense Target Tracking Algorithm Based on Hierarchical and Gradual Update of Labels with Micro-Motion Characteristics [PDF]

Jisuanji gongcheng
Aiming at the problem of tracking dense target groups, especially multi-targets with micro-motion characteristics, this study proposes a dense target tracking algorithm based on label hierarchical gradual updating with micro-motion characteristics.
CHEN Zhichao, XU Zhenyu, HAO Jinlong, LI Dongying, YU Wenxian
doaj   +1 more source

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

FEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani, Konstantinos Spanopoulos, Zoi Piperigkou, Nikos K. Karamanos   +3 more
wiley   +1 more source