Results 41 to 50 of about 47,865 (312)

Performance Analysis of Integrated Navigation Algorithm Based on GNSS-VTL and INS for Jamming Robustness Under Dynamic Condition

IEEE Access
The Vector Tracking Loop (VTL) enhances the robustness of a Global Navigation Satellite System (GNSS) receiver by using inter-channel interaction, offering improved signal tracking performance under jamming and weak signal conditions.
Seung-Gyu Yang, Jae-Un Lee, Jong-Hoon Won   +2 more
doaj   +1 more source

Autonomous Navigation Technology for Low-Speed Small Unmanned Vehicle: An Overview

World Electric Vehicle Journal, 2022
In special locations (scenes) such as campuses and closed parks, small unmanned vehicles have gained more attention and application. Autonomous navigation is one of the key technologies of low-speed small unmanned vehicles.
Xiaowei Li, Qing Li, Chengqiang Yin, Junhui Zhang   +3 more
doaj   +1 more source

Framework for Autonomous On-board Navigation with the AR.Drone [PDF]

Journal of Intelligent & Robotic Systems, 2013
We present a framework for autonomous flying using the AR.Drone low cost quadrotor. The system performs all sensing and computations on-board, making the system independent of any base station or remote control. High level navigation, computer vision and control tasks are carried out in an external processing unit that steers the vehicle to a desired ...
Jacobo Jimenez Lugo, Andreas Zell
openaire   +1 more source

Hospitalization Through Families’ Eyes: Comparing Inpatient Care Quality for Children With Sickle Cell Disease and Cystic Fibrosis in Canada

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker, Kyle Kemp, Perri Tutelman, Sharon H. J. Hou, Paul Fairie, Maria Santana, Gregory M. T. Guilcher, Taryn Fay‐McClymont, Glenda Bendiak, Wendy Pelletier, Nicola Wright, Fiona Schulte   +11 more
wiley   +1 more source

A single acoustic beacon-based positioning method for underwater mobile recovery of an AUV

International Journal of Advanced Robotic Systems, 2018
This article presents a navigation method for an autonomous underwater vehicle being recovered by a human-occupied vehicle. The autonomous underwater vehicle is considered to carry underwater navigation sensors such as ultra-short baseline, Doppler ...
Ziye Zhou, Yanqing Jiang, Ye Li, Cao Jian, Yeyi Sun   +4 more
doaj   +1 more source

Navigation Risk Assessment of Autonomous Ships Based on Entropy–TOPSIS–Coupling Coordination Model

Journal of Marine Science and Engineering, 2023
An autonomous ship refers to a ship that achieves autonomous operation in ship navigation, management, maintenance, cargo transportation and other aspects.
Wenjun Zhang, Yingjun Zhang
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Navigation Scenario Permutation Model for Training of Maritime Autonomous Surface Ship Remote Operators

Applied Sciences, 2022
The development of autonomous ships has begun. Artificial intelligence (AI) is expected to be partially responsible for navigation; nevertheless, the importance of human intervention is higher than ever. Human intervention in the control of an autonomous
Taemin Hwang, Ik-Hyun Youn
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Control and guidance systems for the navigation of a biomimetic autonomous underwater vehicle [PDF]

, 2011
The field of Autonomous Underwater Vehicles (AUVs) has increased dramatically in size and scope over the past three decades. Application areas for AUVs are numerous and varied, from deep sea exploration, to pipeline surveillance to mine clearing.
Tonello, Alberto
core