Results 101 to 110 of about 50,488 (298)

A Hierarchal Planning Framework for AUV Mission Management in a Spatio-Temporal Varying Ocean

, 2017
The purpose of this paper is to provide a hierarchical dynamic mission planning framework for a single autonomous underwater vehicle (AUV) to accomplish task-assign process in a limited time interval while operating in an uncertain undersea environment ...
Atyabi, Adham, Powers, David M. W, Sammut, Karl, Yazdani, Amir Mehdi, Zadeh, Somaiyeh Mahmoud.   +4 more
core   +1 more source

Practical Experience towards Robust Underwater Navigation

IFAC-PapersOnLine, 2018
Abstract Autonomous underwater operations require robust and accurate navigation capabilities, a basic requirement for both precise position and velocity estimation, as well as motion compensation and geo-referencing of exteroceptive sensor data. A great number of theoretical approaches to sensor fusion and filtering can be found in literature, but ...
Bibuli Marco, Zereik Enrica, Bruzzone Gabriele, Caccia Massimo, Ferretti Roberta, Odetti Angelo   +5 more
openaire   +1 more source

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Advanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat, Laurie O'Neill, Léo Pio‐Lopez, Megan M. Sperry, Patrick Erickson, Tiffany Lin, Michael Levin   +6 more
wiley   +1 more source

Autonomous navigation with constrained consistency for C-Ranger [PDF]

, 2016
Autonomous underwater vehicles (AUVs) have become the most widely used tools for undertaking complex exploration tasks in marine environments. Their synthetic ability to carry out localization autonomously and build an environmental map concurrently, in ...
He, Bo, Li, Minghui, Ying, Lulu, Yuan, Guang, Zhang, Shujing   +4 more
core  

Timing Mechanotransduction: Mechanically Dynamic Biomaterials Reveal the Temporal Hierarchy of YAP/TAZ Control Nodes

Advanced Science, EarlyView.
This work develops dynamically softening polyacrylamide hydrogels for time‐resolved imaging during continuous mechanical transitions. The study revealed that mechanotransduction is biphasic; YAP/TAZ inactivation is driven by early loss of the nucleocytoskeletal continuum connecting subnuclear adhesions, F‐actin, and the nuclear envelope, coupled with ...
Alessandro Gandin, Giada Vanni, Veronica Torresan, Margherita Pelosin, Rebecca Busetto, Anna Citron, Ambela Suli, Paolo Contessotto, Carlo Albanese, Francesca Zanconato, Tito Panciera, Stefano Piccolo, Giovanna Brusatin   +12 more
wiley   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

Advanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies, Emanuele Nicotra, Kefan Zhu, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Phuoc Thien Phan, Jingjing Wan, Patrick Pruscino, Hermione Truong, Jelena Rnjak‐Kovacina, Hoang‐Phuong Phan, Christopher Hayward, Nigel Hamilton Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

RAEM-SLAM: A Robust Adaptive End-to-End Monocular SLAM Framework for AUVs in Underwater Environments

Drones
Autonomous Underwater Vehicles (AUVs) play a critical role in ocean exploration. However, due to the inherent limitations of most sensors in underwater environments, achieving accurate navigation and localization in complex underwater scenarios remains a
Yekai Wu, Yongjie Li, Wenda Luo, Xin Ding   +3 more
doaj   +1 more source

Underwater terrain-aided navigation method based on improved Gaussian sum particle filtering

International Journal of Advanced Robotic Systems, 2018
To solve the nonlinear Bayesian estimation problem in underwater terrain-aided navigation, a terrain-aided navigation method based on improved Gaussian sum particle filter is proposed.
Pengyun Chen, Jianlong Chang, Yujie Han, Meini Yuan   +3 more
doaj   +1 more source

Enabling Persistent Autonomy for Underwater Gliders with Ocean Model Predictions and Terrain Based Navigation

Frontiers in Robotics and AI, 2016
Effective study of ocean processes requires sampling over the duration of long (weeks to months) oscillation patterns. Such sampling requires persistent, autonomous underwater vehicles, that have a similarly long deployment duration.
Andrew eStuntz, Jonathan Scott Kelly, Ryan Neal Smith   +2 more
doaj   +1 more source

Decoding the Cardiac Immune Microenvironment and Fibroblast Crosstalk in Radiotherapy Combined with Immunotherapy‐Induced Cardiac Fibrosis Based on Single‐Cell Transcriptomic Analysis

Advanced Science, EarlyView.
This study highlights that radioimmunotherapy drives crosstalk between fibroblasts and immune cells (especially macrophages) in the cardiac microenvironment, with IL‐6 as the key mediator, and tocilizumab alleviates cardiac fibrosis by targeting this interplay.
Yuxi Luo, Ying Yu, Zhimin Zeng, Yanxin Chen, Yali Yi, Zhiqin Lu, Fujuan Zeng, Peng Xu, Daya Luo, Leifeng Chen, Anwen Liu   +10 more
wiley   +1 more source