Results 11 to 20 of about 5,178,293 (354)

Relating Estrada index with spectral radius

Journal of the Serbian Chemical Society, 2007
The Estrada index EE is a recently proposed molecular structure-descriptor, used in the modeling of certain features of the 3D structure of organic molecules, in particular of the degree of folding of proteins and other long-chain biopolymers. The Estrada index is computed from the spectrum of the molecular graph.
Ivan Gutman, Slavko Radenkovic, Boris Furtula, Toufik Mansour, Matthias Schork   +4 more
openaire   +6 more sources

Combination of spectral index and transfer learning strategy for glyphosate-resistant cultivar identification. [PDF]

Front Plant Sci, 2022
Tao M, He Y, Bai X, Chen X, Wei Y, Peng C, Feng X.   +6 more
europepmc   +3 more sources

Comparative Efficacy of Intraoperative Patient State Index vs. Bi-Spectral Index in Patients Undergoing Elective Spine Surgery with Neuromonitoring Under General Anaesthesia: A Randomized Controlled Trial. [PDF]

Turk J Anaesthesiol Reanim
Singla D, Agrawal S, T K P, Adhikary AB, Mangla M.   +4 more
europepmc   +3 more sources

Modelling a Spectral Index to Detect Dispersed Oil in a Seawater Column Depending on the Viewing Angle: Gulf of Gdańsk Case Study. [PDF]

Sensors (Basel), 2020
Baszanowska E, Otremba Z, Piskozub J.
europepmc   +3 more sources

Development and Evaluation of a New Spectral Index to Detect Peanut Southern Blight Disease Using Canopy Hyperspectral Reflectance [PDF]

Horticulturae
Peanut southern blight is a soil-borne fungal disease caused by Agroathelia rolfsii (syn. Sclerotium rolfsii) Sacc, which seriously affects peanut yield.
Tiantian Wen, Juan Liu, Yuanyuan Fu, Jibo Yue, Yuheng Li, Wei Guo   +5 more
doaj   +2 more sources

Spectral Index for Mapping Topsoil Organic Matter Content Based on ZY1-02D Satellite Hyperspectral Data in Jiangsu Province, China

ISPRS International Journal of Geo-Information, 2022
Estimation of soil organic matter content (SOMC) is essential for soil quality evaluation. Compared with traditional multispectral remote sensing for SOMC mapping, the distribution of SOMC in a certain area can be obtained quickly by using hyperspectral ...
Yayu Yang, Kun Shang, Chenchao Xiao, Changkun Wang, Hongzhao Tang   +4 more
doaj   +1 more source

Optimization and Validation of Hyperspectral Estimation Capability of Cotton Leaf Nitrogen Based on SPA and RF

Remote Sensing, 2022
By studying the spectral information of cotton leaf nitrogen content, sensitive feature bands and spectral indices for leaf nitrogen content were screened, and different methods were used to model the screened feature bands and indices to find a method ...
Xiangyu Chen, Xin Lv, Lulu Ma, Aiqun Chen, Qiang Zhang, Ze Zhang   +5 more
doaj   +1 more source

Forest Burned Area Detection Using a Novel Spectral Index Based on Multi-Objective Optimization

Forests, 2022
Forest fires cause environmental and economic damage, destroy large areas of land and displace entire communities. Accurate extraction of fire-affected areas is of vital importance to support post-fire management strategies and account for the ...
Bo Wu, He Zheng, Zelong Xu, Z. Wu, Yindi Zhao   +4 more
semanticscholar   +1 more source

Detection of Peanut Leaf Spot Disease Based on Leaf-, Plant-, and Field-Scale Hyperspectral Reflectance

Remote Sensing, 2022
Leaf spot (LS) caused by Cercosporidium personatum is one of the most harmful peanut diseases in the late growth stage and severely affects the yield of peanuts.
Qiang Guan, Kai Song, Shuai Feng, Fenghua Yu, Tongyu Xu   +4 more
doaj   +1 more source

High-Resolution Drone-Acquired RGB Imagery to Estimate Spatial Grape Quality Variability

Agronomy, 2021
Remotesensing techniques can help reduce time and resources spent collecting samples of crops and analyzing quality variables. The main objective of this work was to demonstrate that it is possible to obtain information on the distribution of must ...
Marta García-Fernández, Enoc Sanz-Ablanedo, José Ramón Rodríguez-Pérez   +2 more
doaj   +1 more source