نتایج جستجو برای: buxus trees

تعداد نتایج: 90201  

Journal: :Statistics and Computing 2021

Bayesian Additive Regression Trees (BART) is a tree-based machine learning method that has been successfully applied to regression and classification problems. BART assumes regularisation priors on set of trees work as weak learners very flexible for predicting in the presence non-linearity high-order interactions. In this paper, we introduce an extension BART, called Model (MOTR-BART), conside...

Journal: :journal of optimization in industrial engineering 2011
abolfazl kazemi elahe mehrzadegan

decision-tree algorithms provide one of the most popular methodologies for symbolic knowledge acquisition. the resulting knowledge, a symbolic decision tree along with a simple inference mechanism, has been praised for comprehensibility. the most comprehensible decision trees have been designed for perfect symbolic data. classical crisp decision trees (dt) are widely applied to classification t...

Old trees as the most important genetic reserves of the country have great importance and value in various aspects of ecology, forest restoration management, ecotourism and even history. In this research, after identification of the old trees in the forests of Ilam province, their morphological characteristics including DBH, trunk height, total height, crown length, min & max crown diameter, cr...

Journal: :international journal of environmental research 2014
s. ali ahmad korori m. matinizadeh a. shirvany e. madani mashaei t. talebi khorabadi

plane and mulberry trees play a crucial role in purifying the polluted air in tehran as a majorcity. in this research, 13 main districts of tehran city were chosen as study area. 20 completely healthy planeand mulberry species were selected in similar ecological conditions and age range. the uptake of cd and pbwas determined using spectrophotometry, whereas the chlorophyll content was measured ...

Journal: :جنگل و فرآورده های چوب 0
جلیل کرمی دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمد رضا کاوسی دانشگاه علوم کشاورزی و منابع طبیعی گرگان منوچهر بابانژاد دانشگاه گلستان

evaluating the population density and spatial pattern of infected trees are one of the important criteria for selecting the management method and epidemiology of forest diseases. this study aimed at assessing the damage intensity and spatial-temporal mortality patterns of oak in qoroq forest park, golestan province. the health of oak trees was evaluated in seven transects by using quarter-point...

2016
Angela M. Kim Richard C. Olsen Martin Béland

A 3-D Monte Carlo ray-tracing simulation of LiDAR propagation models the reflection, transmission and absorption interactions of laser energy with materials in a simulated scene. In this presentation, a model scene consisting of a single Victorian Boxwood (Pittosporum undulatum) tree is generated by the high-fidelity tree voxel model VoxLAD using high-spatial resolution point cloud data from a ...

2002
Ganpati B. Jagdale Nethi Somasekhar Parwinder S. Grewal Michael G. Klein

Effects of live and dead (heat-killed) infective juveniles (IJs) of the entomopathogenic nematode Steinernema carpocapsae on nematodes associated with boxwood Buxus spp. were evaluated in field experiments during 1999 and 2000. Both living and dead IJs of S. carpocapsae were equally effective, causing more than 50% reduction in total populations of plant-parasitic nematodes relative to the cont...

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