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Spectrometric prediction of wood basic density by comparison of different grain angles and variable selection methods
Spectrometric prediction wood basic density
2023/6/2
Background:Wood basic density (WBD) is one of the most crucial wood property in tree and mainly determined the end use of wood for industry. However, the measurement WBD is time- and cost-consuming, w...
VARIABLE SELECTION FOR ROAD SEGMENTATION IN AERIAL IMAGES
Classification Feature Selection Logistic Regression Random Forests Road Extraction
2017/7/12
For extraction of road pixels from combined image and elevation data, Wegner et al. (2015) proposed classification of superpixels into road and non-road, after which a refinement of the classification...
GLOBAL BUNDLE ADJUSTMENT WITH VARIABLE ORIENTATION POINT DISTANCE FOR PRECISE MARS EXPRESS ORBIT RECONSTRUCTION
Planetary Mapping Mars HRSC Bundle Adjustment Orbit Modeling
2016/11/8
The photogrammetric bundle adjustment of line scanner image data requires a precise description of the time-dependent image orientation. For this task exterior orientation parameters of discrete point...
SELECTION OF VARIABLE GAIN SETTINGS FOR IRS- P6: LISS SENSORS
Signal-to-noise ratio Spectral radiance Relative spectral response
2015/8/28
IRS-P6 spacecraft provides a unique opportunity of acquiring simultaneously multispectral (MS) data in three different spatial
resolutions at 5.8 m, 23.5 m and 56 m, respectively, from LISS-4, LISS-3...
AUTOMATIC SCALE-DEPENDENT ADAPTATION OF VARIABLE OBJECT MODELS
Interpretation Expert System Knowledge Base Model Scale Representation Multiresolution
2015/8/17
A methodology for the automatic adaptation of models for the extraction of landscape objects with a variable number of similar object parts to a coarser image resolution is proposed in this paper. A g...
Adaptive Transmission of Variable-Rate Data over a Fading Channel for Energy-Efficiency
Adaptive Transmission Variable-Rate Data Fading Channel Energy-Efficiency
2015/8/17
Adapting to a time-varying channel to maximize the average information rate for a given power constraint is a well-understood problem. Important studies (e.g., [I], [Z], [3]) have developed optimal ra...
Sparse unmixing via variable splitting and augmented Lagrangian for vegetation and urban area classification using Landsat data
Sparse regression spectral unmixing Landsat abundance estimation spectral libraries endmember
2015/7/27
In this paper, we explore the possibility of sparse regression, a new direction in unmixing, for vegetation and urban area classification. SUnSAL (Sparse unmixing via variable splitting and augmented ...
Embedded strong discontinuity finite elements for fractured geomaterials with variable friction
bifurcation rate- and state-friction strong discontinuity enhanced strain finite element
2015/7/1
The strong discontinuity approach to modelling strain localization, combined with an enhanced strain element, has been used for more than a decade to model strain localization in materials including g...
An extended finite element framework for slow-rate frictional faulting with bulk plasticity and variable friction
extended finite element friction fault plasticity
2015/7/1
We present an extended finite element (FE) approach for the simulation of slow-rate frictional faulting in geologic media incorporating bulk plasticity and variable friction. The method allows the fau...
Decentralized Control via Groebner Bases and Variable Elimination
via Groebner Bases Variable Elimination
2015/6/19
We consider the problem of optimal decentralized controller synthesis. There are several classes of such problems for which effective solution methods are known, including the quadratically invariant ...
A VARIABLE- SCALE MAP FOR SMALL-DISPLAY CARTOGRAPHY
A VARIABLE- SCALE MAP SMALL-DISPLAY CARTOGRAPHY
2015/3/16
A VARIABLE- SCALE MAP FOR SMALL-DISPLAY CARTOGRAPHY.
Bi-Directional Vector Variable Gain Amplifier for an X-Band Phased Array Radar Application
variable gain phased array complex gain bi-directional amplifier quadrature
2014/12/8
This thesis presents the design, layout, and measurements of a bi-directional amplifier with variable vector (in-phase / quadrature) gain control that will be part of an electronically steered phased ...
Systematic Synthesis of Organic Semiconductors with Variable Band Gaps
Band Gap Isothianaphthene Organic Photovoltaics Polythiophene Semiconducting Polymers Thieno[3 4 b]thiophene
2014/11/21
Polymeric materials are attractive candidates for the fabrication of low cost, large area photovoltaic devices. Controlling the band gap of the electroactive polymer is an essential factor in optimizi...
Optimizing Output Power of a Variable Speed Synchronous Generator by Controlling Excitation and Load Restistance
Output Power Variable Speed Synchronous Generator Controlling Excitation Load Resistance
2014/11/4
Since 1973 the University of Massachusetts Energy Alternatives Program has been involved in a project, the UMASS Wind Furnace (WF-1) which is directed at supplying the heating needs of households in n...
The Impact of Cattle Grazing in High Elevation Sierra Nevada Mountain Meadows over Widely Variable Annual Climatic Conditions
Water Quality Sierra Nevada, Mountain Meadows Livestock Grazing Cattle, Indicator Bacteria
2013/3/11
The impact of summer cattle grazing on water quality during three very different climatic years in the Sierra Nevada was investigated. Water year 2009 had near normal precipitation; 2010 had late prec...