Results 101 to 110 of about 2,531 (229)

Modelling the Four‐Dimensional Power Line Sag Dynamics by Point Signature in Time‐Series Synthetic‐Aperture Radar Images

High Voltage, EarlyView.
ABSTRACT Power lines in synthetic‐aperture radar (SAR) images are reflected as point signatures, which fluctuate annually in both the azimuth and range directions. A novel framework is proposed in this paper to evaluate the four‐dimensional dynamic status of power line sag using those point signatures in time‐series SAR images.
Sijie Ma, Tao Li, Mahdi Motagh, Yan Liu, Yangmao Wen   +4 more
wiley   +1 more source

Rulers on the road: Itinerant rule in the Holy Roman Empire, AD 919–1519

American Journal of Political Science, EarlyView.
Abstract Itinerant rule, rule exercised through traveling, was a common yet insufficiently researched, premodern form of governance. Studying the determinants of ruler itineraries in the Holy Roman Empire, AD 919–1519, we argue that rulers' visits targeted “marginal” elites.
Carl Müller‐Crepon, Clara Neupert‐Wentz, Andrej Kokkonen, Jørgen Møller   +3 more
wiley   +1 more source

Urban inequalities and marginalization of the Social and Solidarity Economy: A comparative analysis in the Sants‐Montjuïc district in Barcelona

Annals of Public and Cooperative Economics, EarlyView.
Abstract This article examines how urban inequalities influence the Social and Solidarity Economy (SSE) through a study of two Barcelona neighbourhoods. It evaluates the limitations of SSE promotion policies implemented between 2016 and 2024, focusing on their impact on diversifying socio‐enterprise initiatives and fostering cooperative ecosystems with
Santiago Eizaguirre Anglada, Javier Vergel Faro, Jordi Bonet Martí   +2 more
wiley   +1 more source

Transformation of UAV Attitude and Position for Use in Direct Georeferencing [PDF]

The direct georeferencing in aerial photogrammetry requires precise measurement of position and attitude of an image sensor, because the object point position is computed directly using this data.
Gábrlík, Petr
core   +2 more sources

Real-Time Single-Frequency GPS/MEMS-IMU Attitude Determination of Lightweight UAVs

Sensors, 2015
In this paper, a newly-developed direct georeferencing system for the guidance, navigation and control of lightweight unmanned aerial vehicles (UAVs), having a weight limit of 5 kg and a size limit of 1.5 m, and for UAV-based surveying and remote sensing
Christian Eling, Lasse Klingbeil, Heiner Kuhlmann   +2 more
doaj   +1 more source

A Survey of Methods for Constructing 3D Urban Models From Point Clouds

Computer Graphics Forum, EarlyView.
The survey outlines a general process for constructing 3D models from point clouds and categorizes the methods based on their use of templates, basic surface primitives, hybrid approaches, or linear primitives. Additionally, the survey reviews the datasets and benchmarks that are essential for testing and training the developed methods.
Chiara Romanengo, Silvia Biasotti, Bianca Falcidieno, Daniela Cabiddu, Elia Moscoso Thompson, Michela Spagnuolo   +5 more
wiley   +1 more source

Direct Sensor Orientation of a Land-Based Mobile Mapping System

Sensors, 2011
A land-based mobile mapping system (MMS) is flexible and useful for the acquisition of road environment geospatial information. It integrates a set of imaging sensors and a position and orientation system (POS). The positioning quality of such systems is
Yu-Hua Li, Yi-Hsing Tseng, Ki-In Bang, Kai-Wei Chiang, Ana P. Kersting, Ayman F. Habib, Jiann-Yeou Rau   +6 more
doaj   +1 more source

Reconnaissance‐Scale Methods for the Identification of Groundwater Discharge to Streams

Groundwater Monitoring &Remediation, EarlyView.
Abstract Identifying groundwater discharge locations is critical for understanding and monitoring groundwater contributions to streams in terms of water quantity and quality. Streams and rivers are under increasing strain from factors, including increased urbanization, agricultural land use, groundwater extraction, and climate change, which can alter ...
Corey M. Zanatta, Andrew J. Wiebe, David L. Rudolph   +2 more
wiley   +1 more source

Rhododendron diversity patterns provide new insights for conserving China's montane flora

Journal of Integrative Plant Biology, EarlyView.
Integrating distribution, phylogenetic, and functional trait data for 603 Rhododendron species in China identified significant conservation hotspots of multidimensional diversity, particularly in the Hengduan Mountains. Climate seasonality and topographic heterogeneity jointly influenced these patterns; however, notable conservation gaps remained ...
Ming‐Shu Zhu, Zhi‐Qiong Mo, Ya‐Yuang Luo, Chao‐Nan Fu, Ting Zhang, Michael Möller, Jie Cai, Wei Zheng, De‐Zhu Li, Lian‐Ming Gao   +9 more
wiley   +1 more source

Simulation of Direct Georeferencing for Geometric Systematic Correction on LSA Pushbroom Imager [PDF]

, 2017
LAPAN has developed remote sensing data collection by using a pushbroom linescan imager camera sensor mounted on LSA (Lapan Surveillance Aircraft). The position accuracy and orientation system for LSA applications are required for Direct Georeferencing ...
Ahmad Maryanto, Wismu Sunarmodo, Soleh, Muchammad, Sunarmodo, Wismu, Maryanto, Ahmad, Muchammad Soleh   +5 more
core   +2 more sources