Results 41 to 50 of about 27,319 (300)

Research on the Control Point Extraction Method of Chinese Gaofen 7 Satellite Using Altimeter and Footprint Camera [PDF]

EPJ Web of Conferences, 2020
Satellite laser altimetry is one of the most advanced information acquisition technologies in Earth observation system. It can provide high-accuracy elevation information, however, due to the lack of detail intensity information, its planimetric accuracy
Li Binbin, Xie Huan, Tong Xiaohua, Cai Yinqiao, Zhang Zhijie   +4 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Morphological filling of digital elevation models [PDF]

, 2011
In this paper a new approach for a more detailed post processing and filling of digital elevation models (DEMs) in urban areas is presented. To reach the required specifications in a first step the errors in digital surface models (DSMs) generated by ...
d'Angelo, Pablo, P. d'Angelo, T. Krauß, Krauß, Thomas   +3 more
core   +1 more source

A Weighted Image-Point-Measurement Method of Laser Altimetry Points for Improving Laser-Altimetry-Data-Assisted Positioning Accuracy of Small-Satellite Images

Remote Sensing
For small-satellite imagery, traditional image points derived from the direct back-projection of laser altimetry points onto the imagery often exhibit deviations of tens of pixels or more, owing to the relatively limited attitude and orbit determination ...
Wenping Song, Ducheng Wu, Luyao Wang, Miao Li, Jie Han, Caitong Cai, Yang Wu, Fen Tang, Lei Wu   +8 more
doaj   +1 more source

Hybrid Metal–Carbon Ink for Printed Stretchable Temperature Sensors

Advanced Engineering Materials, EarlyView.
We prepare conductive inks for temperature sensing with silver flakes and carbon or graphite flakes in a silicone elastomer matrix. Silver dominates the temperature‐dependent conductivity, while the carbon filler network ensures the stability of the conductive pathways and retains function under strain.
Makara Lay, Xue Bai, Thomas Kister, Tobias Kraus   +3 more
wiley   +1 more source

Analysis and application of 1-way laser ranging data from Wettzell station to LRO [PDF]

, 2012
One-way LR (Laser Ranging) is performed routinely from ILRS (International Laser Ranging Service) ground stations to the LOLA (Lunar Orbiter Laser Altimeter) instrument which is onboard NASA’s LRO (Lunar Reconnaissance Orbiter).
Hussmann, Hauke, Mazarico, Erwan, Smith, David, Neumann, Gregory, McGarry, Jan, Mao, Dandan, Torrence, Mark, Oberst, Jürgen, Herold, Günther, Zuber, Maria, Schreiber, Ullrich, Sven, Bauer, Gläser, Philipp   +12 more
core  

Overview of the GF‐7 Laser Altimeter System Mission

Earth and Space Science, 2020
The Gao Fen 7 (GF‐7) satellite is China's first submeter, high‐resolution Earth observation and remote sensing satellite for natural resource monitoring, land surveying, and other industrial applications in China.
Xinming Tang, Junfeng Xie, Ren Liu, Genghua Huang, Chenguang Zhao, Ying Zhen, Hongzhao Tang, Xianhui Dou   +7 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

Reduction and analysis of one-way laser ranging data from ILRS ground stations to LRO [PDF]

, 2013
One-way LR (Laser Ranging) is being performed routinely from ILRS (International Laser Ranging Service) ground stations to LOLA (Lunar Orbiter Laser Altimeter), onboard NASA’s LRO (Lunar Reconnaissance Orbiter).
Schreiber, Ulli, Smith, David, Neumann, Gregory, McGarry, Jan, Mao, Dandan, Torrence, Mark, Oberst, Jürgen, Hussmann, Hauke, Zuber, Maria, Mazarico, Erwan, Bauer, Sven, Gläser, Philipp   +11 more
core  

Definition of ICESat Selection Criteria for their Use as Height References for TanDEM-X [PDF]

, 2010
The TanDEM X satellite synthetic aperture radar (SAR) mission has the goal to deliver a high-precision global digital elevation model (DEM). The X band SAR interferometry (InSAR)-derived DEMs contain absolute and relative height errors that have to be ...
Scheiber, Rolf, Bachmann, Markus, Krieger, Gerhard, Hueso Gonzalez, Jaime   +3 more
core   +1 more source