Results 61 to 70 of about 1,544,815 (380)

CNVPS: Cooperative Neighboring Vehicle Positioning System Based on Vehicle-to-Vehicle Communication

open access: yesIEEE Access, 2019
One of the key components of the intelligent transport system is to provide a safe driving environment. The ability to quickly and accurately recognize the surrounding environments and neighboring vehicles is essential for the development of safety ...
Sanghyuck Nam   +3 more
doaj   +1 more source

Non-Taylor series based positioning method for location based services [PDF]

open access: yes, 2008
Location Based Services (LBS) has gained increasing popularity in major cities. Due to blocking from man-made structures, the existing Global Positioning System (GPS) could not satisfy LBS applications, especially in street canyon and indoor surroundings.
Reza, Ahmed Wasef   +2 more
core   +2 more sources

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

open access: yesFEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva   +1 more
wiley   +1 more source

Study on the Positioning Accuracy of GNSS/INS Systems Supported by DGPS and RTK Receivers for Hydrographic Surveys

open access: yesEnergies, 2021
Hydrographic surveys, in accordance with the International Hydrographic Organization (IHO) S-44 standard, can be carried out in the following five orders: Exclusive, Special, 1a, 1b and 2, for which minimum accuracy requirements for the applied ...
Andrzej Stateczny   +7 more
doaj   +1 more source

A Closed-form Localization Method Utilizing Pseudorange Measurements from Two Non-synchronized Positioning Systems [PDF]

open access: yes, 2020
In a time-of-arrival (TOA) or pseudorange based positioning system, user location is obtained by observing multiple anchor nodes (AN) at known positions. Utilizing more than one positioning systems, e.g., combining Global Positioning System (GPS) and BeiDou Navigation Satellite System (BDS), brings better positioning accuracy.
arxiv   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

A commentary of Hyper-accurate position in MIT Technology Review 2021

open access: yesFundamental Research, 2021
The positioning accuracy improvement of satellite navigation system support the development of industries related to high accuracy positioning. The BeiDou global satellite navigation system (BDS-3) started providing full-scale global services in 2020 ...
Xia Ren, Yuanxi Yang
doaj  

The Global Positioning System [PDF]

open access: yes, 2005
The Global Positioning System (GPS) is quickly becoming part of the fabric of everyday life. Beyond recreational activities such as boating and backpacking, GPS receivers are becoming a very important tool to such industries as agriculture ...
Koostra, Benjamin K.   +2 more
core   +1 more source

Characterization of a Multi-User Indoor Positioning System Based on Low Cost Depth Vision (Kinect) for Monitoring Human Activity in a Smart Home [PDF]

open access: yes, 2015
An increasing number of systems use indoor positioning for many scenarios such as asset tracking, health care, games, manufacturing, logistics, shopping, and security. Many technologies are available and the use of depth cameras is becoming more and more
Abouchi, Nacer   +5 more
core   +3 more sources

Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms

open access: yesFEBS Letters, EarlyView.
Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze   +3 more
wiley   +1 more source

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