Results 41 to 50 of about 369,559 (294)

Retrieval of the Canopy Chlorophyll Density of Winter Wheat from Canopy Spectra Using Continuous Wavelet Analysis [PDF]

open access: yesNature Environment and Pollution Technology, 2019
Continuous wavelet analysis (CWA) has been applied to leaf-scale spectral data for quantifying leaf chlorophyll content, but its application to canopy-scale spectral data for estimating the canopy chlorophyll density (CCD) of winter wheat at different ...
Qingkong Cai, Erjun Li, Jiechen Pan and Chao Chen
doaj  

Improving Unmanned Aerial Vehicle (UAV) remote sensing of rice plant potassium accumulation by fusing spectral and textural information

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
Plant potassium accumulation (PKA) plays an important role in evaluating the production capacity of crops. Remote sensing from unmanned aerial vehicles (UAVs) is increasingly used in precision agriculture, but relatively little is known about its use for
Jingshan Lu   +12 more
doaj   +1 more source

The Crab pulsar and its pulsar-wind nebula in the optical and infrared [PDF]

open access: yes, 2009
We investigate the emission mechanism and evolution of pulsars that are associated with supernova remnants. We used imaging techniques in both the optical and near infrared, using images with very good seeing (
A. A. Djupvik   +33 more
core   +1 more source

Evaluation of Sub-Pixel Cloud Noises on MODIS Daily Spectral Indices Based on in situ Measurements

open access: yesRemote Sensing, 2011
Cloud contamination is one of the severest problems for the time-series analysis of optical remote sensing data such as vegetation phenology detection. Sub-pixel clouds are especially difficult to identify and remove.
Kenlo Nishida Nasahara   +3 more
doaj   +1 more source

Selection and Fusion of Spectral Indices to Improve Water Body Discrimination

open access: yesIEEE Access, 2018
Spectral indices are widely used to emphasize water body information in satellite images. The selection of the appropriate index is one of the tasks that the remote sensing community faces when water bodies are studied.
Gabriela Calvario Sanchez   +4 more
doaj   +1 more source

Crop classification using spectral indices derived from Sentinel-2A imagery

open access: yesJournal of Information and Telecommunication, 2020
Optical remote sensing is one of the most attractive options for generating crop cover maps because it enables computation of vegetation indices, which are useful for assessing the condition of vegetation.
Nobuyuki Kobayashi   +3 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Identification of the Best Hyperspectral Indices in Estimating Plant Species Richness in Sandy Grasslands

open access: yesRemote Sensing, 2019
Numerous spectral indices have been developed to assess plant diversity. However, since they are developed in different areas and vegetation type, it is difficult to make a comprehensive comparison among these indices. The primary objective of this study
Yu Peng   +6 more
doaj   +1 more source

Spectral indices in Eddington-inspired Born-Infeld inflation

open access: yes, 2015
We investigate the scalar and tensor spectral indices of the quadratic inflation model in Eddington-inspired Born-Infeld (EiBI) gravity. We find that the EiBI corrections to the spectral indices are of second and first order in the slow-roll ...
Cho, Inyong, Gong, Jinn-Ouk
core   +1 more source

CPX‐351 in High‐Risk Relapsed Pediatric Acute Leukemia: Real‐World Phase 1 Data Establishing the FDA‐Approved Dose

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Outcomes for pediatric relapsed/refractory (R/R) acute myeloid leukemia (AML) remain dismal. CPX‐351, a liposomal formulation of cytarabine and daunorubicin, may have less off‐target toxicities than traditional chemotherapies and has shown improved outcomes for adults with newly diagnosed therapy‐related AML.
Jonathan D. Bender   +17 more
wiley   +1 more source

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