نتایج جستجو برای: artificial stands

تعداد نتایج: 308478  

Journal: :Nature 1912

Journal: :Offset 1969

Journal: :جنگل و فرآورده های چوب 0
ضیاءالدین باده یان استادیار دانشگاه لرستان معصومه منصوری دانشجوی دکترا دانشگاه لرستان محبوبه فسحت دانشجوی کارشناسی ارشد دانشگاه تربیت مدرس محمد علی فخاری کارشناس ارشد سازمان جنگلها، مراتع و آبخیزداری کشور. سید محسن حسینی دانشیار دانشکده منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس، پردیس نور

forest ecosystems and their optimal management can play effective roles in mitigating the carbon emission as well as absorbing the atmospheric carbon. the present research was carried out to determine the effects of 21 year old stands of cryptomeria japonica, cupressus sempervirens, pinus taeda, acer pseudo-platanu and mixed plantation and natural forest stands on sequestration of carbon in the...

2000
Gianluigi Rech

This paper contains a forecasting exercise on 30 time series, ranging on several fields, from economy to ecology. The statistical approach to artificial neural networks modelling developed by the author is compared to linear modelling and to other three well-known neural network modelling procedures: Information Criterion Pruning (ICP), Cross-Validation Pruning (CVP) and Bayesian Regularization...

2015
William L. Mason Eric J. Jokela

Planted forests of Sitka spruce, a non-native species from north-west America, are the major forest type in Great Britain and Ireland. Standard management involves even-aged stands, rotations of 40–50 years and a patch clear-felling system with artificial regeneration. However, forest policies support managing these forests for multifunctional objectives with increased diversity of species comp...

Journal: : 2023

Pinus peuce (Balkan, Macedonian or Molika pine) is an endemic tree for the Balkans and a Tertiary relict, one of two European five-needled pines subgenus Strobus (white pines). This work summarizes data on macrofungal diversity in natural forests artificial plantations pine Bulgaria, based three year survey epigeous hypogeous fungi selected sampling plots, combining morphology-based molecularly...

2009
Juan L. Pérez M. Martínez Manuel Herrador

Artificial Intelligence (AI) mechanisms are more and more frequently applied to all sorts of civil engineering problems. New methods and algorithms which allow civil engineers to use these techniques in a different way on diverse problems are available or being made available. One AI techniques stands out over the rest: Artificial Neural Networks (ANN). Their most remarkable traits are their ab...

2008
Gerhard Grunwald

DEXMART is a European large-scale integrating project (IP) funded in the Seventh Framework Programme. The acronym stands for DEXterous and autonomous dual-arm/hand robotic manipulation with sMART sensory-motor skills: A bridge from natural to artificial cognition. The project is focused on artificial systems reproducing smart sensory-motor human skills, which operate in unstructured real-world ...

M. Salimi and H. R. Malek,

This paper is concerned with investigations into the effect of tension between the stands of the finishing mill on width control in a hot rolling process. An analysis is given to predict satisfactorily the variation in width due to spreading and also due to strip tension between the stands. Wusatowski's model which is developed to give an account of spreading is specified and a similar model to...

M. Salimi and H. R. Malek,

This paper is concerned with investigations into the effect of tension between the stands of the finishing mill on width control in a hot rolling process. An analysis is given to predict satisfactorily the variation in width due to spreading and also due to strip tension between the stands. Wusatowskis model which is developed to give an account of spreading is specified and a similar model to ...

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