Results 81 to 90 of about 59,060 (340)

Signal Acquisition of Luojia-1A Low Earth Orbit Navigation Augmentation System with Software Defined Receiver [PDF]

arXiv, 2021
Low earth orbit (LEO) satellite navigation signal can be used as an opportunity signal in case of a Global navigation satellite system (GNSS) outage, or as an enhancement means of traditional GNSS positioning algorithms. No matter which service mode is used, signal acquisition is the prerequisite of providing enhanced LEO navigation service.
arxiv  

New Efficient D‐π‐A and A‐π‐A Structured Type I Radical Photoinitiators for Additive Manufacturing Nanomaterials Preparation

Advanced Materials Technologies, EarlyView.
Groundbreaking advancements are discovered in 3D printing with new type‐I radical photoinitiators, including 1,1‐dimethoxy‐1‐phenylpropan‐2‐one. These innovative compounds, effective under visible light, enhance photopolymerization of acrylates and methacrylates, facilitating the creation of efficient nanocomposites and unlock the future of polymer ...
Andrzej Świeży, Filip Petko, Dominika Krok‐Janiszewska, Patryk Szymaszek, Mariusz Galek, Joanna Ortyl   +5 more
wiley   +1 more source

Chemical AI in the Limelight: The Contribution of Photochromic Materials and Oscillatory Chemical Reactions

Advanced Optical Materials, EarlyView.
Photochromic compounds are versatile ingredients for the development of Chemical AI. When they are embedded in a tight microenvironment, they become Markov blankets. They are also valuable for processing Boolean and Fuzzy logic. They contribute to neuromorphic engineering in wetware based on opto‐chemical signals exchanged with oscillatory chemical ...
Pier Luigi Gentili
wiley   +1 more source

A flexible implementation of a Global Navigation Satellite System (GNSS) receiver for on-board satellite navigation

2010 Conference on Design and Architectures for Signal and Image Processing (DASIP), 2010
In this paper, we present the implementation of the acquisition algorithm of a versatile Global Navigation Satellite System (GNSS) receiver for satellite applications. For versatility purpose, the choice of the receiver algorithms has been motivated by 1) their capability to fulfill the application requirements with a moderate complexity, 2) their ...
Dion, Arnaud, Boutillon, Emmanuel, Calmettes, Vincent, Liegeon, Emmanuel   +3 more
openaire   +2 more sources

Density of States and Binding Energy Informatics for Exploring Early Disease Detection in MOF‐Metal Oxide Chemiresistive Sensors

Advanced Theory and Simulations, EarlyView.
Binding energy and electronic structure calculations are used to assess the ability of metal–organic framework (MOF)‐TiO2 composite materials to detect volatile organic compounds found in human breath. Electronic structure changes are measured by comparing density of states profiles using Wasserstein distances.
Maryam Nurhuda, Ken‐ichi Otake, Susumu Kitagawa, Daniel M. Packwood   +3 more
wiley   +1 more source

Multi-path suppression algorithm for through-the-wall imaging

The Journal of Engineering, 2019
Through-the-wall radar has been used in rescue missions, behind-the-wall targets detection, surveillance and reconnaissance etc. However, through-the-wall radar encounters two major problems in complex environment.
Yikun Zhao, Wenfu Yang, Yinchuan Li, Yin Xiang, Zegang Ding   +4 more
doaj   +1 more source

Precise orbit determination for a large LEO constellation with inter-satellite links and the measurements from different ground networks: a simulation study

Satellite Navigation, 2022
Geodetic applications of Low Earth Orbit (LEO) satellites requires accurate satellite orbits. Instead of using onboard Global Navigation Satellite System observations, this contribution treats the LEO satellite constellation independently, using Inter ...
Xingchi He, Urs Hugentobler, Anja Schlicht, Yufeng Nie, Bingbing Duan   +4 more
doaj   +1 more source

GDC: Integration of Multi‐Omic and Phenotypic Resources to Unravel the Genetic Pathogenesis of Hearing Loss

Advanced Science, EarlyView.
Overview of the Genetic Deafness Commons (GDC), integrating data from the Chinese Deafness Genetics Consortium (CDGC) and 51 public databases. The GDC provides tools for variant search, functional predictions, and gene‐disease visualization, offering insights into 201 hearing loss genes and facilitating novel gene discovery and clinical applications ...
Hui Cheng, Xuegang Wang, Mingjun Zhong, Jia Geng, Wenjian Li, Kanglu Pei, Jing Wang, Lanchen Wang, Yu Lu, Jing Cheng, Fengxiao Bu, Huijun Yuan   +11 more
wiley   +1 more source

Navigation for Satellite Formation Flying

Problems of Mechatronics Armament Aviation Safety Engineering, 2018
This paper deals with the case of a target satellite in an unknown orientation and location with respect to the master satellite. Feature based monocular pose estimation vision system was presented. The results of analysis, implementation and testing of simulation intended for vision-based navigation applications such as rendezvous of satellites and ...
Robert Głębocki, Mariusz Jacewicz
openaire   +2 more sources

Efficient and Specific PDGFRβ‐Targeting Dual‐Mode T1‐T2 MRI Nanoprobe for Early Diagnosis of Non‐Alcoholic Fatty Liver

Advanced Science, EarlyView.
The Fe3O4/Gd@BSA‐pPB nanoprobe leverages biomimetic mineralization and targets hepatic stellate cells (HSCs) through PDGFRβ, offering superior enrichment in fibrotic regions. This targeted delivery overcomes biological barriers, enhancing both the accuracy and sensitivity of MRI imaging at early disease stages.
Zehua Li, Tongwei Zhang, Tongxiang Tao, Yaxuan Liu, Haining Xia, Sajid ur Rehman, Zeyong Guo, Jing Zhang, Ruiguo Chen, Zhan Zhang, Junfeng Wang, Kun Ma   +11 more
wiley   +1 more source