Results 41 to 50 of about 1,125,833 (284)

An Unsteady Model for Aircraft Icing Based on Tightly-Coupled Method and Phase-Field Method

open access: yesAerospace, 2021
An unsteady tightly-coupled icing model is established in this paper to solve the numerical simulation problem of unsteady aircraft icing. The multi-media fluid of air and droplets is regarded as a single medium fluid with variable material properties ...
Hao Dai   +4 more
doaj   +1 more source

Tightly Coupled SLAM With Imprecise Architectural Plans [PDF]

open access: yesIEEE Robotics and Automation Letters
Robots navigating indoor environments often have access to architectural plans, which can serve as prior knowledge to enhance their localization and mapping capabilities. While some SLAM algorithms leverage these plans for global localization in real-world environments, they typically overlook a critical challenge: the "as-planned" architectural ...
Muhammad Shaheer   +6 more
openaire   +3 more sources

Analysis of the Effect of Time Delay on the Integrated GNSS/INS Navigation Systems [PDF]

open access: yesTransNav, 2013
The performance of tightly coupled GNSS/INS integration is known to be better than that of loosely coupled GNSS/INS integration. However, if the time synchronization error occurs between the GNSS receiver and INS(Inertial Navigation System), the ...
Choel-Kwan Yang, Duk-Sun Shim
doaj   +1 more source

Tightly Coupled Array Antennas for Ultra-Wideband Wireless Systems

open access: yesIEEE Access, 2018
Tightly coupled array (TCA) antenna has become a hot topic of research recently, due to its potential of enabling one single antenna array to operate over an extremely wide frequency range.
Yonggang Zhou   +8 more
doaj   +1 more source

Tightly-Coupled Stereo Visual-Inertial Navigation Using Point and Line Features

open access: yesSensors, 2015
This paper presents a novel approach for estimating the ego-motion of a vehicle in dynamic and unknown environments using tightly-coupled inertial and visual sensors.
Xianglong Kong   +3 more
doaj   +1 more source

Tightly coupled probabilistic description logic programs for the semantic web

open access: yes, 2009
We present a novel approach to probabilistic description logic programs for the Semantic Web in which disjunctive logic programs under the answer set semantics are tightly coupled with description logics and Bayesian probabilities.
Lukasiewicz, T.   +16 more
core   +1 more source

Tightly Coupled GNSS/INS Integration based on Robust M-Estimators

open access: yes, 2018
The combination of Global Navigation Satellite Systems (GNSS) and Inertial Navigation System (INS) has become the baseline of many vehicular applications.
Jan Skaloud   +11 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

An Ultra-wide-band Tightly Coupled Dipole Reflectarray Antenna [PDF]

open access: yes, 2017
A novel ultra-wide-band tightly coupled dipole reflectarray (TCDR) antenna is presented in this paper. This reflectarray antenna consists of a wide-band feed and a wide-band reflecting surface. The feed is a log-periodic dipole array antenna.
Qi Luo   +9 more
core   +1 more source

Instantaneous Observability of Tightly Coupled SINS/GPS during Maneuvers

open access: yesSensors, 2016
The tightly coupled strapdown inertial navigation system (SINS)/global position system (GPS) has been widely used. The system observability determines whether the system state can be estimated by a filter efficiently or not.
Junxiang Jiang   +3 more
doaj   +1 more source

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