نتایج جستجو برای: based system

تعداد نتایج: 4500093  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

2008
Régis Newo Klaus-Dieter Althoff

How does someone react when he faces a critical situation in his life? In this paper we present an initial initial implementation architecture based on a simulation model described in [10] In our model we mainly consider the interactions between a person concerned and factors like his environment and his own abilities. Using the empolis information access suite, we currently implement our model...

Journal: :international journal of information science and management 0
abdelraheem mousa basal a. l. steenkamp ph.d. lawrence technological university

in the united states schools in the k12 school system, that provide education for primary, junior and senior high school students, are moving toward information systems to solve and automate some manual processes performed in these schools. with this movement, and the pressure on schools to use technology to improve student achievement, many schools are turning to learning management systems as...

Journal: :مهندسی برق و الکترونیک ایران 0
s. sadough a. mahmood e. jaffrot pierre duhamel

this paper investigates the multi-band ofdm (mb-ofdm) based physical (phy) layer proposal for ieee 802.15.3a working group on short-range high data-rate ultra-wide-band (uwb) communications. an overview of the mb-ofdm phy layer architecture with its various parameters is presented and the optimal choice of critical parameters is discussed. next, we derive the theoretical un-coded bit error rate...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
hasan ghiasi shahrokh jebraeili s.mahdi jafari yahya maghsoudlou

in this study the factors controlling the software colorimetry (photoshop), including illumination (direct and indirect), image background (white and black), camera settings (zoom, light, resolution and environmental conditions) and the conversion equations of r, g, b images to l *, a *, b *, compared with the results of the device were investigated and optimized. the results showed that the fa...

Journal: :روش های عددی در مهندسی (استقلال) 0
مسعود سبحانی و احمدرضا تابش m. sobhani and a. a. tabesh

in this paper, a new algorithm for system identification based on frequency response is presented. in this method, given a set of magnitudes and phases of the system transfer function in a set of discrete frequencies, a system of linear equations is derived which has a unique and exact solution for the coefficients of the transfer function provided that the data is noise-free and the degrees of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1379

مهندسان در طراحی های بزرگ و پیچیده، قبل از ساخت نمونه فیزیکی و برآورد هزینه و زمان ساخت آن احتیاج به شبیه سازی کامپیوتری سخت افزار دارند. از طرفی سرعت شبیه سازهای متداول برای حجم بزرگ مدار بسیار کند می شود و این به دلیل محاسبات زیادی است که برای بدست آوردن اطلاعات ریز زمانی مدار انجام می شود. اما در بسیاری از موارد یک طراح احتیاج به دیدن درستی عملکرد طرح خود دارد و نه اطلاعات ریز زمانی آن. در ا...

Journal: :journal of ai and data mining 2014
amirmohammad shafiee ali mohammad latif

fuzzy segmentation is an effective way of segmenting out objects in images containing both random noise and varying illumination. in this paper, a modified method based on the comprehensive learning particle swarm optimization (clpso) is proposed for pixel classification in hsi color space by selecting a fuzzy classification system with minimum number of fuzzy rules and minimum number of incorr...

Journal: :international journal of information science and management 0
m. a. mahdavi ph.d. imam khomeini international university

so far, various romanization schemes have been proposed for capturing persian text using latin alphabet. however, each have served a very specific and yet limited function. this paper proposes an extended romanization scheme that can facilitate a wide range of encoding needed in the field of natural language processing. the proposed scheme endeavors to preserve both orthographic and phonologica...

Journal: :international journal of robotics 0
d. katzourakis technical university of delft m. corno technical university of delft r. kazemi k.n. toosi university of technology ali ghaffari k.n. toosi university of technology m. alirezaei k.n. toosi university of technology

in this paper a robust road departure avoidance system based on a closed-loop driver decision estimator (dde) is presented. the main idea is that of incorporating the driver intent in the control of the vehicle. the driver decision estimator computes the vehicle look ahead lateral position based on the driver input and uses this position to establish the risk of road departure. to induce a risk...

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