نتایج جستجو برای: nn

تعداد نتایج: 11304  

Journal: :Astronomische Nachrichten 1904

Amir Hossein Hakimyoun Hadi Bharifar Mohammad Ail Zarinfard Reza Ghiasi Simzar Hosseinzade

The structural and electronic properties of C24-2nBn Nn and M@ C24-2nBn Nn (M= alkaline and earth alkaline metals; n=3 and 6) molecules are studied using the Density Functional Theory (DFT). It was found that the most interaction is in M@ C24-2nBn Nn complexes (M=Be, Mg; n=3 and 6). The negative nucleus-independent chemical shifts confirm that C24-2nBn Nn (n=3 and 6) cages exhibit aromatic char...

Journal: :international journal of environmental research 2014
a. gupta r. vijay v.k. kushwaha s.r. wate a. shiehbeigi

numerous studies yet have been carried out on downscaling of the large-scale climate data usingboth dynamical and statistical methods to investigate the hydrological and meteorological impacts of climatechange on different parts of the world. this study was also conducted to investigate the capability of feedforwardneural network with error back-propagation algorithm to downscale the provincial...

Journal: :International Journal of Modern Physics A 2011

سیدیوسف عرفانی فرد معصومه موصلو,

تراکم (تعداد درختان در واحد سطح) یکی از مشخصه­‌های ساختاری مهم در توده­‌های جنگلی است که در درک پویایی جنگل مناسب است. روش kامین نزدیکترین همسایه (k-NN) یک روش فاصله‌­ای است که به‌طور متداول در آماربرداری جنگل برای برآورد مشخصه­‌های کمی به‌کار می­رود. در این مطالعه روش k-NN با پنج راهکار نزدیکترین فرد (NI)، نزدیکترین همسایه (NN)، جفت‌های تصادفی (RP)، چارک نقطه مرکز (PCQ) و همسایه چارکی (QN) برا...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2006
alireza zomorrodi bahram nasernejad jahanshah kabudian

the biologists now face with the masses of high dimensional datasets generated from various high-throughput technologies, which are outputs of complex inter-connected biological networks at different levels driven by a number of hidden regulatory signals. so far, many computational and statistical methods such as pca and ica have been employed for computing low-dimensional or hidden representat...

Journal: :Int. J. Computational Intelligence Systems 2015
Juri Belikov Eduard Petlenkov

This paper is devoted to application of neural network with a specific restricted connectivity structure for identification and control of a real process. Parameters of the identified model are used to design a controller based on dynamic feedback linearization. The designed neural network based controller is verified on mathematical model within MATLAB/Simulink environment and applied to the r...

Journal: :journal of advances in computer research 2015
mohammad reza mosavi hodeis nabavi

this paper presents an accurate differential global positioning system (dgps) using multi-layered neural networks (nns) based on the back propagation (bp) and imperialistic competition algorithm (ica) in order to predict the dgps corrections for accurate positioning. simulation results allowed us to optimize the nn performance in term of residual mean square error. we compare results obtained b...

2012
K. Nakayama

H. Haberzettl1,* and K. Nakayama2,3,† 1Institute for Nuclear Studies and Department of Physics, The George Washington University, Washington, DC 20052, USA 2Department of Physics and Astronomy, University of Georgia, Athens, GA 30602, USA 3Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany (Received 8 November 2010; revised manuscript r...

Handwriting recognition has been one of the active and challenging research areas in the field of image processing and pattern recognition. It has numerous applications that includes, reading aid for blind, bank cheques and conversion of any hand written document into structural text form. Neural Network (NN) with its inherent learning ability offers promising solutions for handwritten characte...

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