Results 21 to 30 of about 110,673 (257)

Building Height Extraction Based on Satellite GF-7 High-Resolution Stereo Image [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
High-resolution remote sensing images can distinguish objects of smaller size, so as to more clearly express the texture features and structural information of objects, and provide a data source for the development of large-scale mapping, high-precision ...
Z. Tian, Y. Gong
doaj   +3 more sources

Influence of Atmospheric Scattering on the Accuracy of Laser Altimetry of the GF-7 Satellite and Corrections [PDF]

open access: yesRemote Sensing, 2021
Satellite laser altimetry can obtain sub-meter or even centimeter-scale surface elevation data over large areas, but it is inevitably affected by scattering caused by clouds, aerosols, and other atmospheric particles. This laser ranging error caused by scattering cannot be ignored.
Jiaqi Yao   +7 more
openaire   +2 more sources

An Introduction to the Chinese High-Resolution Earth Observation System: Gaofen-1~7 Civilian Satellites

open access: yesJournal of Remote Sensing, 2022
The Chinese High-resolution Earth Observation System (CHEOS) program has successfully launched 7 civilian satellites since 2010. These satellites are named by Gaofen (meaning high resolution in Chinese, hereafter noted as GF).
Liangfu Chen   +12 more
doaj   +1 more source

Physicochemical and Sensory Characteristics of Sausages Made with Grasshopper (Sphenarium purpurascens) Flour

open access: yesFoods, 2022
Insects are currently of interest due to their high nutritional value, in particular for the high concentration of quality protein. Moreover, it can also be used as an extender or binder in meat products.
Salvador O. Cruz-López   +4 more
doaj   +1 more source

Accuracy assessment of DSM in mountainous forest areas generated from GF-7 stereo images assisted by ATLAS/ICESat-2 [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The successful launch of the GaoFen-7 (GF-7) satellite has made it possible to achieve sub-meter-level three-dimensional mapping. However, most current studies focus on accuracy evaluating of GF-7 stereo mapping in bare land, and less on its performance ...
J. Xie   +4 more
doaj   +1 more source

Multicast Network Coding and Field Sizes [PDF]

open access: yes, 2015
In an acyclic multicast network, it is well known that a linear network coding solution over GF($q$) exists when $q$ is sufficiently large. In particular, for each prime power $q$ no smaller than the number of receivers, a linear solution over GF($q ...
Li, Zongpeng   +4 more
core   +1 more source

A Classification of the Projective Lines over Small Rings [PDF]

open access: yes, 2006
A compact classification of the projective lines defined over (commutative) rings (with unity) of all orders up to thirty-one is given. There are altogether sixty-five different types of them.
Kibler, Maurice   +3 more
core   +4 more sources

The combined effect of a novel formula of herbal extracts on bacterial infection and immune response in Micropterus salmoides

open access: yesFrontiers in Microbiology, 2023
Herbal extracts have been considered as ideal alternative to antibiotics in aquaculture and application of combinatory effective extracts always can exhibit the enhanced bioactivity with high efficiency.
Huanyu Guo   +6 more
doaj   +1 more source

A Method for Extracting High-Resolution Building Height Information in Rural Areas Using GF-7 Data. [PDF]

open access: yesSensors (Basel)
Building height is important information in disaster management and damage assessment. It is also a key parameter in studies such as population modeling and urbanization. Relatively few studies have been conducted on extracting building height in rural areas using imagery from China’s Gaofen-7 satellite (GF-7).
Liu M   +5 more
europepmc   +4 more sources

A primer on computational group homology and cohomology [PDF]

open access: yes, 2008
These are expanded lecture notes of a series of expository talks surveying basic aspects of group cohomology and homology. They were written for someone who has had a first course in graduate algebra but no background in cohomology.
Joyner, David
core   +2 more sources

Home - About - Disclaimer - Privacy