Results 91 to 100 of about 52,420 (290)

Integrating SfM, LiDAR and TLS for High‐Resolution Monitoring of Palsa Surface Changes and Degradation Dynamics

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Understanding fine‐scale surface changes is crucial for quantifying ecosystem dynamics and detecting landscape changes. Palsas, comparably small peatland elevations with an ice‐rich permafrost core, undergo natural cycles of growth and degradation. They can also serve as indicators of climate change in subarctic regions. Because they typically
Alexander Störmer, Timo Kumpula, Pasi Korpelainen, Benjamin Burkhard   +3 more
wiley   +1 more source

GPS/BDS Medium/Long-Range RTK Constrained with Tropospheric Delay Parameters from NWP Model

Remote Sensing, 2018
Tropospheric delay is a major error source that affects the performance of the Global Navigation Satellite Systems (GNSS) Real Time Kinematic (RTK) positioning especially for the medium/long-range baseline.
Ying Xu, Chen Wu, Lei Li, Lizi Yan, Min Liu, Shengli Wang   +5 more
doaj   +1 more source

Electrical Resistivity Tomography for the 2D and 3D Investigation of Pingos and Permafrost Mounds in Northern Canada's Mountain and Coastland Areas

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Pingos and related permafrost mounds are widespread periglacial landforms in Arctic environments that are ice‐rich on the one hand and contain taliks on the other, making them vulnerable to climate change. So far, the interior, geophysical characteristics, and distribution of ground ice within these dome‐ or cone‐shaped features have not been ...
Tim Wiegand, Julius Kunz, Christof Kneisel   +2 more
wiley   +1 more source

Molecular Interactions of Viral Insulin/IGF‐Like Peptides With Zebrafish Receptors

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Signaling through the insulin receptor (IR) and the type 1 insulin‐like growth factor receptor (IGF1R) is modulated by secreted hormones and growth factor ligands (e.g., insulin and insulin‐like growth factor 1, IGF1). Impaired signaling in these receptors often leads to diabetes and oncogenic diseases.
Lev Levintov, Harish Vashisth
wiley   +1 more source

An RTK-SLAM Dataset for Absolute Accuracy Evaluation in GNSS-Degraded Environments [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
RTK-SLAM systems integrate simultaneous localization and mapping (SLAM) with real-time kinematic (RTK) GNSS positioning, promising both relative consistency and globally referenced coordinates for efficient georeferenced surveying.
W. Zhang, V. Ress, D. Skuddis, U. Soergel, N. Haala   +4 more
doaj   +1 more source

RTK-based GNSS drifters for monitoring in estuaries and rivers: Field experimental results [PDF]

, 2016
This paper presents a novel RTK-based GNSS Lagrangian drifter system that is capable of monitoring water velocity, turbulence and dispersion coefficients of river and estuarine.
Yanming Feng, Kabir Suara, Suara, Kabir, Feng, Yanming, Wang, Charles, Richard Brown, Brown, Richard, Charles Wang   +7 more
core   +1 more source

Dehydrocostus Lactone Suppresses Hepatocellular Carcinoma by Inhibiting Protein Tyrosine Kinase‐7 Mediated β‐Catenin Signaling

Phytotherapy Research, EarlyView.
Schematic summary of the experimentally supported mechanism of DHL in hepatocellular carcinoma. Dehydrocostus lactone (DHL), a sesquiterpene lactone derived from Aucklandia lappa, directly engages protein tyrosine kinase 7 (PTK7), as supported by molecular docking, CETSA, and DARTS assays.
Xiwen Fan, Junhui Li, Yu Qiao, Yuwen Zhong, Xuecheng Ge, Yaoshuai Zhang, Zishu Wang, Feng Qian, Weixin Ren   +8 more
wiley   +1 more source

RTK with the Assistance of an IMU-Based Pedestrian Navigation Algorithm for Smartphones

Sensors, 2019
Real-time kinematic (RTK) technique is widely used in modern society because of its high accuracy and real-time positioning. The appearance of Android P and the application of BCM47755 chipset make it possible to use single-frequency RTK and dual ...
Zun Niu, Ping Nie, Lin Tao, Junren Sun, Bocheng Zhu   +4 more
doaj   +1 more source

Linear System Identification and Control of a Low‐Cost High‐Performance Omnidirectional Marine Surface Vehicle for Swarming Applications

Journal of Field Robotics, EarlyView.
ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah, Gianni Cario, Alessandro Casavola, Marco Lupia, Francesco Tedesco   +4 more
wiley   +1 more source

Inzet RTK-GPS in de teelt van een gewas : met RTK-GPS schoffelen in cichorei na zaaien met RTK-GPS [PDF]

, 2009
In juni 2008 werd op het proefbedrijf van PPO in Lelystad onderzoek gedaan naar de invloed van RTK-GPS stuursystemen op de rechtgeleiding van een werktuig. Met RTK-GPS (RTK staat voor Real Time Kinetic) kan op centimeters nauwkeurig gereden worden.
Bleeker, P.
core   +1 more source