搜索结果: 1-15 共查到“工学 chlorophyll”相关记录31条 . 查询时间(0.094 秒)
MEASUREMENT OF SUN INDUCED CHLOROPHYLL FLUORESCENCE USING HYPERSPECTRAL SATELLITE IMAGERY
Forest stress analysis Hyperspectral Image analysis Sun Induced Chlorophyll Fluorescence Hong Kong Hyperion satellite images Vegetation Indices
2016/12/1
Solar Induced Chlorophyll Fluorescence (SIF), can be used as an indicator of stress in vegetation. Several scientific approaches have been made and there is considerable evidence that steady state Chl...
SPECTRAL FEATURE ANALYSIS FOR QUANTITATIVE ESTIMATION OF CYANOBACTERIA CHLOROPHYLL-A
Chlorophyll-a Spectral analysis Multivariate statistical analysis Vegetation indices Broad band Narrow band
2016/11/23
In recent years, lake eutrophication caused a large of Cyanobacteria bloom which not only brought serious ecological disaster but also restricted the sustainable development of regional economy in our...
Comparison Between Some Common Clays as Adsorbents of Carotenoids, Chlorophyll and Phenolic Compounds from Vegetable Oils
Adsorbents of Carotenoids Chlorophyll and Phenolic Compounds
2016/6/2
Four different clays were compared for their capacities to adsorb chlorophyll and carotenoids; two major pigments in vegetable oils at 30 and 100°C. The clays used include Fulmont, Tonsil N, Tonsil AC...
ANALYSIS ON OPTIMAL BANDS FOR RETRIEVAL OF MIXED CANOPY CHLOROPHYLL CONTENT BASED ON REMOTE SENSING
Spectral indices Chlorophyll content Spectral derivative Optimal bands Mixed canopy
2016/1/3
A large number of spectral indices have been developed for estimation of leaf chlorophyll content. However, in most cases these indices have been tested for only one or at most a few related species a...
ESTIMATION OF LEAF AREA INDEX AND CHLOROPHYLL FOR A MEDITERRANEAN GRASSLAND USING HYPERSPECTRAL DATA
Hyperspectral Vegetation Estimation Leaf Area Index Chlorophyll
2015/12/31
The study shows that leaf area index (LAI) and canopy chlorophyll content can be mapped in a heterogeneous Mediterranean grassland from canopy spectral reflectance measurements. Canopy spectral measur...
CORRELATION ANALYSIS BETWEEN INDICES OF TREE LEAF SPECTRAL REFLECTANCE AND CHLOROPHYLL CONTENT
Hyperspectral Remote Sensing Forestry Spectral Indices Simulation Correlation
2015/12/30
This study was conducted to investigate variations of leaf chlorophyll content and surface spectral reflectance of different tree species (Daphniphyllum glaucescens、Michelia formosana、Illicium dunnian...
A MODELING APPROACH FOR STUDYING FOREST CHLOROPHYLL CONTENT IN RELATION TO CANOPY COMPOSITION
Chlorophyll Content Non-Photosynthetic Vegetation PROSPECT FLIGHT Canopy Structure Woody Elements
2015/12/30
Foliar concentration of the main photosynthetic pigments chlorophyll a and b (Cab) is widely regarded as a generic bioindicator of the actual plant status. However, when the scale moves up to stand le...
SPATIAL VARIABILITY AND ALTITUDE EFFECTS OF PASSIVE CHLOROPHYLL FLUORESCENCE MEASUREMENTS OVER LA MANCHA (SPAIN) FIELDS
Spatial Variability Altitude effects
2015/9/9
AIRFLEX is an optical sensor based on the Fraunhofer Line Discriminator principle applied
in the atmospheric oxygen absorption bands, that measures simultaneously fluorescence at
687 nm and 760 nm. ...
PHYSICAL MODELLING OF NIKON COOLPIX CAMERA RGB RESPONSES FOR APPLICATION IN NON-DESTRUCTIVE LEAF CHLOROPHYLL IMAGING
Leaf optics non-destructive chlorophyll content
2015/9/9
Chlorophyll content is an important characteristic of plant leaves and a critical parameter for modelling purposes and
the scaling up from leaf to canopy level. Leaf colour is an indicator of chlorop...
RETRIEVAL OF CONIFEROUS CANOPY CHLOROPHYLL CONTENT FROM HIGH SPATIAL RESOLUTION HYPERSPECTRAL DATA
Remote Sensing Hyperspectral High Resolution
2015/9/8
The discrete Anisotropic Radiative Transfer (DART) model, coupled with an adjusted version of the PROSPECT model, was used to
retrieve total chlorophyll content (Cab) of a complex Norway spruce (Pice...
REMOTE SENSING OF THE CHLOROPHYLL CONCENTRATION IN THE SAINT-LAWRENCE ESTUARY OF CANADA: PRE-ALGORITHMIC INVESTIGATIONS INTO THE OPTICAL COHERENCY OF SURFACE AND IN-SITU MEASUREMENTS
Oceanography Marine Optics Marine Chlorophyll Ocean Colour Chlorophyll Remote Sensing Saint Lawrence Estuary Case-II water SeaWiFS
2015/7/29
Bio-optical measurements at 50 stations in the Gulf and Estuary of Saint Lawrence were carried out over three major field campaigns
in 1999, 2000, and 2001. These campaigns were performed over diffe...
Support Vector Regression Model of Chlorophyll-a during Spring Algal Bloom in Xiangxi Bay of Three Gorges Reservoir, China
Support Vector Regression Chlorophyll-A Algal Bloom Three Gorges Reservoir
2013/3/11
To study the relationship between chlorophyll-a and environmental variables during spring algal bloom in Xiangxi Bay of Three Gorges Reservoir, the support vector regression (SVR) model was establishe...
SEASONAL DIFFERENCES IN SPATIAL SCALES OF CHLOROPHYLL-A CONCENTRATION IN LAKE TAIHU，CHINA
Chlorophyll-a concentration Scale Heterogeneity Scale Error Different Seasons
2014/4/29
Spatial distribution of chlorophyll-a (chla) concentration in Lake Taihu is non-uniform and seasonal variability. Chla concentration retrieval algorithms were separately established using measured dat...
便携式叶绿素、氮素、水分一体化测定仪设计（Development of a Portable Meter for Detecting Chlorophyll, Nitrogen and Water Contents of Plants）
作物叶片 检测 养分
2009/11/3
建立了可以同时检测作物叶片叶绿素、氮素和水分的数学模型。结合光谱学原理，设计了由近红外LED光源、窄带干涉滤光片、光电检测芯片以及单片机系统组成的作物叶片叶绿素、氮素、水分检测一体化便携式仪器，避免现有仪器由于叶片位置和测定时间差异导致的作物养分探测误差，可用于作物养分和水分的精细管理。
基于夫琅和费暗线原理的太阳诱导叶绿素荧光仪（Development of a Solar-induced Chlorophyll Fluorescence Monitor Based on Fraunhofer Line Principle）
太阳诱导叶绿素荧光 仪器 夫琅和费暗线原理
2009/11/3
叶绿素荧光技术是探知植物生理状态及其与环境关系的理想方法。太阳诱导叶绿素荧光可以利用夫琅和费暗线原理进行提取。阐述了夫琅和费暗线探测自然光条件下光合作用荧光的基本原理和方法，以及波长760nm叶绿素荧光探测仪的光学系统、仪器硬件组成及其各部分功能、仪器的软件设计。通过与ASD地物光谱仪器的对比试验表明，研制的太阳诱导叶绿素荧光测量的数据与地物光谱仪测量的数据相关系数都大于0.9。基于夫琅和费暗线原...