Results 31 to 40 of about 694,399 (289)

Monitoring the Rice Panicle Blast Control Period Based on UAV Multispectral Remote Sensing and Machine Learning

Land, 2023
The heading stage of rice is a critical period for disease control, such as for panicle blast. The rapid and accurate monitoring of rice growth is of great significance for plant protection operations in large areas for mobilizing resources.
Bin Ma, Guangqiao Cao, Chaozhong Hu, Cong Chen   +3 more
doaj   +1 more source

A model reduction approach to numerical inversion for a parabolic partial differential equation

, 2014
We propose a novel numerical inversion algorithm for the coefficients of parabolic partial differential equations, based on model reduction. The study is motivated by the application of controlled source electromagnetic exploration, where the unknown is ...
Borcea, Liliana, Druskin, Vladimir, Mamonov, Alexander V., Zaslavsky, Mikhail   +3 more
core   +1 more source

Inversion of soil carbon, nitrogen, and phosphorus in the Yellow River Wetland of Shaanxi Province using field in situ hyperspectroscopy

Frontiers in Soil Science
Soil nitrogen and phosphorus are directly related to soil quality and vegetation growth and are, therefore, a common research topic in studies on global climate change, material cycling, and information exchange in terrestrial ecosystems.
Leichao Nie, Leichao Nie, Leichao Nie, Leichao Nie, Keying Qu, Keying Qu, Keying Qu, Keying Qu, Lijuan Cui, Lijuan Cui, Lijuan Cui, Lijuan Cui, Xiajie Zhai, Xiajie Zhai, Xiajie Zhai, Xiajie Zhai, Xinsheng Zhao, Xinsheng Zhao, Xinsheng Zhao, Xinsheng Zhao, Yinru Lei, Yinru Lei, Yinru Lei, Yinru Lei, Jing Li, Jing Li, Jing Li, Jing Li, Jinzhi Wang, Jinzhi Wang, Jinzhi Wang, Jinzhi Wang, Rumiao Wang, Rumiao Wang, Rumiao Wang, Rumiao Wang, Wei Li, Wei Li, Wei Li, Wei Li   +39 more
doaj   +1 more source

Method to Interpret Injection Profile of Water Injection Well Based on DTS

Cejing jishu
A method for interpreting the water injection profile based on Distributed Temperature Sensing (DTS) is proposed to address the technical challenges of diagnosing the water injection volume of each injection layer of water injection wells.
ZHANG Xiliang, LI Ang, WU Jie, WANG Lijun, ZUO Kai, ZHANG Zhihu   +5 more
doaj   +1 more source

Suitability Evaluation of Typical Drought Index in Soil Moisture Retrieval and Monitoring Based on Optical Images

Remote Sensing, 2020
As a basic agricultural parameter in the formation, transformation, and consumption of surface water resources, soil moisture has a very important influence on the vegetation growth, agricultural production, and healthy operation of regional ecosystems ...
Yan Nie, Ying Tan, Yuqin Deng, Jing Yu
doaj   +1 more source

Inverse Scattering by the Stability Index Method

, 2001
A novel numerical method for solving inverse scattering problem with fixed-energy data is proposed. The method contains a new important concept: the stability index of the inversion problem.
Gutman, S., Ramm, A. G., Scheid, W.
core   +3 more sources

Generalized inverse patchy colloid model [PDF]

The Journal of Chemical Physics, 2015
We generalize the inverse patchy colloid model that was originally developed for heterogeneously charged particles with two identical polar patches and an oppositely charged equator to a model that can have a considerably richer surface pattern.
Stipsitz, Monika, Kahl, Gerhard, Bianchi, Emanuela   +2 more
openaire   +3 more sources

Improving the inversion accuracy of shallow shear wave velocity structure based on microtremor method: A case study of Haikou Jiangdong New District

Dizhi lixue xuebao
Objective  The microtremor survey method is not limited by the spatiotemporal distribution of seismic sources and has become an effective method for observing the structure of shallow shear wave velocity.
ZHANG Qian, WU Xiaojie, ZHONG Zhoucan, CAI Shuiku   +3 more
doaj   +1 more source

A Geometric Approach to Joint Inversion with Applications to Contaminant Source Zone Characterization

, 2013
This paper presents a new joint inversion approach to shape-based inverse problems. Given two sets of data from distinct physical models, the main objective is to obtain a unified characterization of inclusions within the spatial domain of the physical ...
Abriola, Linda M., Aghasi, Alireza, Mendoza-Sanchez, Itza, Miller, Eric L., Ramsburg, C. Andrew   +4 more
core   +1 more source

MATHEMATICAL MODELS FOR CHROMOSOMAL INVERSIONS [PDF]

Genetics, 1967
INCE a formal characterization of the nature of inversions has not been made to date, this paper will hypothesize mathematical models for the occurrence of inversions of various lengths, obtain the associated probability distributions of lengths and midpoints of chromosomal inversions, and compare the hypothesized models with two sets of data.
W T, Federer, R G, Steel, B, Wallace
openaire   +2 more sources