Results 31 to 40 of about 1,544,815 (380)

OL-SLAM: A Robust and Versatile System of Object Localization and SLAM

open access: yesSensors, 2023
This paper proposes a real-time, versatile Simultaneous Localization and Mapping (SLAM) and object localization system, which fuses measurements from LiDAR, camera, Inertial Measurement Unit (IMU), and Global Positioning System (GPS).
Chao Chen   +6 more
doaj   +1 more source

Indoor positioning based on global positioning system signals [PDF]

open access: yes, 2012
The Global Positioning System (GPS) is highly reliable and accurate when used outdoors.However, in indoor environments, due to the additional signal loss incurred by the walls of the buildings, the detection and decoding of GPS signals becomes a ...
Bozkurt, Ayhan   +4 more
core   +2 more sources

A low-cost solution for unmanned aerial vehicle navigation in a global positioning system–denied environment

open access: yesInternational Journal of Distributed Sensor Networks, 2018
The ability of an autonomous unmanned aerial vehicle to navigate and fly precisely determines its utility and performance. The current navigation systems are highly dependent on the global positioning system and are prone to error because of global ...
Shahrukh Ashraf   +5 more
doaj   +1 more source

Borderline global regularity for nonuniformly elliptic systems [PDF]

open access: yesarXiv, 2022
We establish sharp global regularity results for solutions to nonhomogeneous, nonunifomrly elliptic systems with zero boundary conditions. In particular, we obtain everywhere Lipschitz continuity under borderline Lorentz assumptions on the forcing term, thus positively settling the optimality issue raised in \cite{bdms}.
arxiv  

Evaluating the origin and spread of spotted lanternfly (Lycorma delicatula) in Japan

open access: yesPopulation Ecology, EarlyView.
The invasive spotted lanternfly (Lycorma delicatula) is native to China and is a serious economic pest in the Republic of Korea and the United States, though it is not considered a pest in Japan. We established a distribution map of L. delicatula in Japan through a comprehensive review of published literature and citizen science reports and analyzed ...
Matthew T. Kamiyama   +5 more
wiley   +1 more source

Study of flora and structure of weed communities of saffron (Crocus sativus L.) fields in Khorasan Razavi province [PDF]

open access: yesZirā̒at va Fanāvarī-i Za̒farān, 2018
The Khorasan Razavi province is the center of saffron production in Iran and the world. Among factors affecting saffron gap yield, weeds are the most important one.
Ali Asghar Padarloo   +3 more
doaj   +1 more source

High dynamic global positioning system receiver [PDF]

open access: yes, 1986
A Global Positioning System (GPS) receiver having a number of channels, receives an aggregate of pseudorange code time division modulated signals. The aggregate is converted to baseband and then to digital form for separate processing in the separate ...
Hurd, W. J.
core   +1 more source

The immunological interface: dendritic cells as key regulators in metabolic dysfunction‐associated steatotic liver disease

open access: yesFEBS Letters, EarlyView.
Metabolic dysfunction‐associated steatotic liver disease (MASLD) affects nearly one‐third of the global population and poses a significant risk of progression to cirrhosis or liver cancer. Here, we discuss the roles of hepatic dendritic cell subtypes in MASLD, highlighting their distinct contributions to disease initiation and progression, and their ...
Camilla Klaimi   +3 more
wiley   +1 more source

Design of a new type of combined underground personnel positioning system

open access: yesGong-kuang zidonghua, 2014
In view of problems that current underground personnel positioning has low accuracy, cannot realize real-time global positioning and it is difficult to search and rescue trapped people, a combined underground personnel positioning system based on ...
LIU Yong   +3 more
doaj   +1 more source

Single point positioning using full and fractional pseudorange measurements from GPS and BDS [PDF]

open access: yes, 2020
In conventional global navigation satellite system (GNSS) receivers, usually full pseudorange measurements are required to complete a single point position fix. However, to obtain full pseudorange measurements takes longer time than for fractional pseudorange measurements.
arxiv   +1 more source

Home - About - Disclaimer - Privacy