Results 31 to 40 of about 223,497 (264)

Clustering Point Process Based Network Topology Structure Constrained Urban Road Extraction From Remote Sensing Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
To extract complicated road network from remote sensing images on urban scenes, this article presents a clustering point process (CPP) based network topology structure constrained road extraction algorithm.
You Wu, Quanhua Zhao, Zhaoyu Shen, Yu Li
doaj   +1 more source

The angular nature of road networks [PDF]

open access: yesScientific Reports, 2017
AbstractRoad networks are characterised by several structural and geometrical properties. The topological structure determines partially the hierarchical arrangement of roads, but since these are networks that are spatially constrained, geometrical properties play a fundamental role in determining the network’s behaviour, characterising the influence ...
Carlos Molinero   +2 more
openaire   +5 more sources

Traffic Accident Risk Prediction of Tunnel Based on Multi-Source Heterogeneous Data Fusion

open access: yesIEEE Access
In order to improve the prediction accuracy, this paper proposes a traffic accident risk prediction method of tunnel based on multi-source heterogeneous data fusion.
Yong Wang   +5 more
doaj   +1 more source

Hierarchical Area Partitioning Method of Urban Road Networks Matching [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2019
In view of the “Node-Arc” data model of road network in the aspect of structured expressing the deficiencies, the hierarchical area partitioning of road network based on the principle of stroke, which made road network space structure ...
Bohua HUANG,Wei ZHONG,Renjian ZHAI,Qing ZHOU
doaj   +1 more source

In-Path Oracles for Road Networks

open access: yesISPRS International Journal of Geo-Information, 2023
Many spatial applications benefit from the fast answering to a seemingly simple spatial query: “Is a point of interest (POI) ‘in-path’ to the shortest path between a source and a destination?” In this context, an in-path POI is one that is either on the shortest path or can be reached within a bounded yet small detour from the shortest path.
Debajyoti Ghosh   +3 more
openaire   +3 more sources

Enteric Duplication Cyst Associated With Meckel’s Diverticulum: A Rare Cause of Acute Abdomen

open access: yesJournal of Investigative Medicine High Impact Case Reports
We report a case of a 26-year-old type 1 diabetic woman presenting with acute lower abdominal pain, bloating, and vomiting. Initial examination revealed right lower quadrant tenderness and a suprapubic mass.
Kugendran Ponniah MD   +4 more
doaj   +1 more source

Constrained Tracking on a Road Network [PDF]

open access: yes, 2006
Many applications of wireless ad hoc sensor and actuator networks (WSANs) rely on the knowledge of node locations. These are challenging to obtain when nodes are mobile and are not equipped with any specific positioning hardware. In this paper, we are interested in scenarios where there are constraints on the movement of nodes, such as with cars on a ...
Piorkowski, Michal   +1 more
openaire   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Semi-Automatic Method of Extracting Road Networks from High-Resolution Remote-Sensing Images

open access: yesApplied Sciences, 2022
Road network extraction plays a critical role in data updating, urban development, and decision support. To improve the efficiency of labeling road datasets and addressing the problems of traditional methods of manually extracting road networks from high-
Kaili Yang   +5 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

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