Results 61 to 70 of about 67,391,839 (291)

Athermalization Design for the On-Orbit Geometric Calibration System of Space Cameras

Remote Sensing
The on-orbit geometric calibration accuracy of high-resolution space cameras directly affects the application value of Earth observation data. Conventional on-orbit geometric calibration methods primarily rely on ground calibration fields, making it ...
Hongxin Liu, Xuedi Chen, Chunyu Liu, Fei Xing, Peng Xie, Shuai Liu, Xun Wang, Yuxin Zhang, Weiyang Song, Yanfang Zhao   +9 more
doaj   +1 more source

PLEIADES ABSOLUTE CALIBRATION : INFLIGHT CALIBRATION SITES AND METHODOLOGY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In-flight calibration of space sensors once in orbit is a decisive step to be able to fulfil the mission objectives. This article presents the methods of the in-flight absolute calibration processed during the commissioning phase.
S. Lachérade, S. Fourest, P. Gamet, L. Lebègue   +3 more
doaj   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

FEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh, Kamalika Mukherjee, Suvendra N. Bhattacharyya   +2 more
wiley   +1 more source

Visual Navigation For On-Orbit Servicing Missions [PDF]

, 2013
Increasing complexity and costs of satellite missions promote the idea of looking for opportunities to extend the operational lifetime or to improve the performance of a satellite instead of simply replacing it by a new one.
Tzschichholz, Tristan, Boge, Toralf, Benninghoff, Heike   +2 more
core  

On-Orbit Calibration and Wet Tropospheric Correction of HY-2C Correction Microwave Radiometer

Remote Sensing, 2023
HY-2C is the third satellite in China’s ocean dynamic environment satellite series, and carries a correction microwave radiometer (CMR) to correct the wet tropospheric path delay for the aligned radar altimeter.
Xiaomeng Zheng, Dehai Zhang, Jin Zhao, Maofei Jiang   +3 more
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Precise Orbit Determination for ADEOS-II [PDF]

, 2006
We performed the precise orbit determination of ADEOS-II using single frequency GPS data and reviewed the results. JAXA precise orbit determination system is called “GUTS (Global and high accUracy Trajectory determination system)”.
Yamamoto, Y., Nakamura, S., Montenbruck, Oliver, Kudo, N.   +3 more
core  

Calibration of the JEM-EUSO detector

EPJ Web of Conferences, 2013
In order to unveil the mystery of ultra high energy cosmic rays (UHECRs), JEM-EUSO (Extreme Universe Space Observatory on-board Japan Experiment Module) will observe extensive air showers induced by UHECRs from the International Space Station orbit with ...
Gorodetzky P., Wiencke L., Christl M., Adams J., Sakaki N.   +4 more
doaj   +1 more source

Risk Prediction Models for Recurrence After Curative Treatment of Early‐Stage or Locally Advanced Lung Cancer: A Systematic Review

Aging and Cancer, EarlyView.
This systematic review synthesizes prognostic models for survival and recurrence in resected non‐small cell lung cancer. While many models demonstrate moderate to good discrimination, few are externally validated and reporting quality is variable, limiting clinical applicability and highlighting the need for robust, transparent model development ...
Evangeline Samuel, S. Tissera, E. Paul, J. Zalcberg, R. G. Stirling   +4 more
wiley   +1 more source

Satellite on-orbit center of mass calibration method and optimization

Xibei Gongye Daxue Xuebao
Aiming at the centroid position change of on-orbit satellites, a satellite on-orbit centroid calibration and optimization method is proposed. A satellite on-orbit centroid calibration model was established, and the centroid position was calibrated by ...
WANG Simeng, YU Feng
doaj   +1 more source