نتایج جستجو برای: array thinning

تعداد نتایج: 144028  

Journal: :علوم باغبانی ایران 0
میثم الیاسی مقدم کارشناس ارشد ، دانشکدۀ کشاورزی، دانشگاه زنجان طاهر برزگر استادیار، دانشکدۀ کشاورزی، دانشگاه زنجان زهرا قهرمانی استادیار، دانشکدۀ کشاورزی، دانشگاه زنجان

in order to study the effects of foliar application of naa and plant thinning on growth, yield and fruit quality of melon genotype khatooni, the experiment was conducted in a randomized complete block design with three replications at research field of faculty of agriculture, university of zanjan. treatments consisted of foliar application of naa at three levels (25, 50 and 100 mg.l-1 at 4-6 tr...

2017
Alexander Gradel Christian Ammer Batsaikhan Ganbaatar Sven Wagner

The forests of North Mongolia are largely dominated either by larch (Larix sibirica Ledeb.) or birch (Betula platyphylla Sukaczev). The increasing demand for timber and firewood is currently met by removal of wood from these forest stands. Therefore, silvicultural approaches that account for both utilization and protection are needed. Thinning trials were established in the research area Altans...

Journal: :NeuroImage 2012
I. L. C. van Soelen Rachel M. Brouwer G. Caroline M. van Baal Hugo G. Schnack Jiska S. Peper D. Louis Collins Alan C. Evans René S. Kahn Dorret I. Boomsma Hilleke E. Hulshoff Pol

During development from childhood to adulthood the human brain undergoes considerable thinning of the cerebral cortex. Whether developmental cortical thinning is influenced by genes and if independent genetic factors influence different parts of the cortex is not known. Magnetic resonance brain imaging was done in twins at age 9 (N = 190) and again at age 12 (N = 125; 113 repeated measures) to ...

2011
Harish Kumar Paramjeet Kaur

Thinning is a very important preprocessing step for the analysis and recognition of different types of images. Thinning is the process of minimizing the width of a line, in an image, from many pixels wide to just one pixel (Lam et al., 1992) [3]. Thus Correct and Reliable thinning of character patterns are essential to a variety of applications in the field of document analysis and recognition ...

2005
T. EVAN NEBEKER

The effects of thinning on insects and diseases have not been thoroughly examined in southern bottomland hardwood forests. To address this issue, a study was initiated at sites in Mississippi and Alabama. These study sites allowed us to make observations concerning insect and disease activity 1-5 years following thinning. On all sites there was an unthinned control and 1 or more thinned areas. ...

2017
Chih-Hsin Chung Cheng-Jung Lin Jean-Claude Ruel

Effective time of thinning is essential for determining a silvicultural operation schedule. One of the most commonly used methods is the percentage of radial increase to assess the effect of thinning. However, it is difficult to determine the ideal time point due to variation in tree growth rates. Event history analysis was used to quantify the optimal timings for different row thinning types f...

Journal: :Int. J. Imaging Systems and Technology 2011
Gábor Németh Kálmán Palágyi

Thinning is an iterative object reduction technique for extracting medial curves from binary objects. During a thinning process, some border points that satisfy certain topological and geometric constraints are deleted in iteration steps. Parallel thinning algorithms are composed of parallel reduction operators that delete a set of object points simultaneously. This article presents 21 parallel...

2015
John M. Weiss Christer Karlsson

Thinning is an important task in many image processing applications, including remote sensing, photogrammetry, optical character recognition, and medical imaging. In this study, we compare the performance of thinning algorithms on parallel hardware. Grayscale thinning involves a substantial amount of computation per pixel, and may be accelerated in several ways: algorithmic improvements, code o...

In most of the sheet forming processes, production of the parts with minimum thickness variation and low required force is important. In this research, minimization of the sheet thinning and forming force in the hydraulic deep drawing process has been studied. Firstly, the process is simulated using the finite element method (FEM) and simulation model is verified using the experimental results....

2002
Timo Pukkala Jari Miina Marc Palahí

The study analyses the annual post-thinning response and thinning bias of a young Scots pine stand as a function of tree size, competition faced by the tree, and competition that is removed around the tree in the thinning treatment. The thinning response of a tree was defi ned as the change of tree growth due to a thinning treatment. The thinning bias was defi ned as the difference between the ...

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