Results 61 to 70 of about 432,356 (303)
Advanced Functional Materials, EarlyView.This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva +9 more
wiley +1 more source
Frontiers in Plant Science, 2017 Hyperspectral reflectance derived vegetation indices (VIs) are used for non-destructive leaf area index (LAI) monitoring for precise and efficient N nutrition management.
Mairaj Din +8 more
doaj +1 more source
A novel moisture adjusted vegetation index (MAVI) to reduce background reflectance and topographical effects on LAI retrieval. [PDF]
PLoS ONE, 2014 A new moisture adjusted vegetation index (MAVI) is proposed using the red, near infrared, and shortwave infrared (SWIR) reflectance in band-ratio form in this paper.
Gaolong Zhu +3 more
doaj +1 more source
Tailoring the Properties of Functional Materials With N‐Oxides
Advanced Functional Materials, EarlyView.The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich +5 more
wiley +1 more source
Journal of Agrometeorology, 2014 A growing number of studies have focused on evaluating the spectral indices in terms of their sensitivity to vegetation biophysical parameters like leaf area index.
S. A. KADAM, S. D. GORANTIWAR
doaj +1 more source
Drought events and their effects on vegetation productivity in China [PDF]
, 2016 Many parts of the world have experienced frequent and severe droughts during the last few decades. Most previous studies examined the effects of specific drought events on vegetation productivity.
Belward A. S. +9 more
core +3 more sources
A Termite‐Inspired Alternative to Cement
Advanced Functional Materials, EarlyView.A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev +3 more
wiley +1 more source
Caminhos de Geografia, 2010 Os índices de Vegetação (IV) são modelos matemáticos desenvolvidos para avaliar a cobertura vegetal e diagnosticar índice de área foliar, biomassa, porcentagem de cobertura do solo, atividade fotossintética e produtividade; e têm sido utilizados com ...
Aline Braga Marcussi +3 more
doaj
Drought Monitoring With Spectral Indices Calculated From Modis Satellite Images In Hungary
Journal of Environmental Geography, 2015 In this study a new remote sensing drought index called Difference Drought Index (DDI) was introduced. DDI was calculated from the Terra satellite’s MODIS sensor surface reflectance data using visible red, near-infrared and short-wave-infrared spectral ...
Gulácsi András, Kovács Ferenc
doaj +1 more source
Investigation of Vegetation Dynamics using Long-Term Normalized Difference Vegetation Index Time-Series [PDF]
American Journal of Environmental Sciences, 2009 Abstract: Problem statement: The Normalized Difference Vegetation Index (NDVI) is the most extensively used satellite-derived index of vegetation health and density. Since climate is one of the most important factors affecting vegetation condition, satellite-derived vegetation indexes have been often used to evaluate climatic and environmental changes ...
BELLONE, Tamara +2 more
openaire +2 more sources