Results 31 to 40 of about 7,632,940 (263)

Rigorous Sensor Model of Gaofen-7 Satellite Laser Altimeter Based on Coupled Footprint Camera

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The Gaofen-7 (GF-7) satellite system adds a footprint camera that shares the same optical path as its laser altimeter to ensure consistent spatial referencing between the laser footprint point and the obtained optical images.
Shaoning Li, Guo Zhang, Xiufang Fan
doaj   +1 more source

A Separate Calibration Method of Laser Pointing and Ranging for the GF-7 Satellite Laser That Does Not Require Field Detectors

open access: yesRemote Sensing, 2022
Satellite laser altimeters have been widely used in the surveying, mapping, forestry, and polar regions and by other industries due to their excellent elevation measurement accuracy.
Ren Liu   +5 more
doaj   +1 more source

Gf(3) Ve Gf(7) Üzerindeki Yarı-Devirli Kodlar [PDF]

open access: yes, 2008
Any cyclic code with n=pm length can be put into quasi-cyclic form ,where p ? 1, p,m + ? Z . In this paper, some parameters of the Quasi-Cyclic codes over GF(3) and GF(7) are obtained by using the best known cyclic codes.p, m pozitif tamsayılar ve p ?
Öke, Figen   +2 more
core   +1 more source

Comparison of Integrating GF-7 and ICESat-2 Laser Altimetry Data with High-resolution Stereo Images for Stereo Mapping [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Currently, two types of satellite laser altimetry systems are in operation: the full waveform linear system and the single-photon-counting system, which exhibit significant differences in both data format and processing methodologies.
J. Chen, G. Li, J. Guo, J. Peng, J. Peng
doaj   +1 more source

On the classification of self-dual [20,10,9] codes over GF(7)

open access: yesFinite Fields and Their Applications, 2016
10 pages, minor ...
Masaaki Harada, Akihiro Munemasa
openaire   +3 more sources

xilin93/Single-cell-analysis-of-GF-SI-CD4-cells: GFSICD4V1.0.0

open access: yes, 2023
Full Changelog: https://github.com/xilin93/Single-cell-analysis-of-GF-SI-CD4-cells/commits/V1.0.
xilin93
core   +1 more source

Extraction of Pig Farms From GaoFen Satellite Images Based on Deep Learning

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Accurate information on the spatial distribution and area of pig farms is essential for pig breeding monitoring, pork production estimation, and environmental governance of pig breeding. Governmental regulatory departments mostly rely on field surveys to
Jielin Guan   +5 more
doaj   +1 more source

A Hundred-Year Researching History on the Low Ionic Strength in Red Blood Cells: Literature Review

open access: yes, 2021
This review article provides a critical survey of work from 1904 to 2003 on the effects of low ionic strength in Red Blood Cells (RBCs) incubated in media with impermeable sugars such as sucrose.
Fuhrmann GF* and Netter KJ
core   +1 more source

Design and Data Processing of China's First Spaceborne Laser Altimeter System for Earth Observation: GaoFen-7

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
The GaoFen-7 (GF-7) satellite, which was launched on November 3, 2019, is China's first civilian submeter stereo mapping satellite. The satellite is equipped with the first laser altimeter officially in China for earth observation.
Junfeng Xie   +11 more
doaj   +1 more source

Impact of granular filtration on ultrafiltration membrane performance as pre-treatment to seawater desalination in presence of algal blooms

open access: yesJournal of Water Reuse and Desalination, 2018
To mitigate fouling of the ultrafiltration (UF) membrane and improve permeate quality, we coupled granular filters (GF) with UF membrane as a pre-treatment for reconstituted seawater in the presence of algal bloom.
Nour-Eddine Sabiri   +5 more
doaj   +1 more source

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