National Conference on Advances in Basic sciences and Engineering (Aug.2014)
Article title:
Bed load transport in gravel streams Case Study: beshar River
Authors:
Sajjad Shakerian; Mohammad Hassan Hussein Nejad Belko; Amir Hamza Haghi Abi
Abstract:
Erosion and sediment transport in the rivers is one of the most important and complicated subjects in river engineering. These phenomena have specific effects on water quality, bed and bank scouring as well as considerable damages to water related structures and projects. Therefore, precise prediction of river sediment plays an important role in water resources management and planning as well as design and construction of hydraulic structures. According to beshar is a gravel-bed river, In this research it has been tried to obtain the best equation of five well-known bed load transport equations in determination of bed load sediment.
PDF:

For Authors
For Readers
DOWNLOAD
Article title:
Obtaining common set of Pareto efficient weights to evaluate performance of decision making units
Authors:
Ali Payan, Tahere Hosseinabadi
Abstract:
The basic problem for gaining common set of weights is to solve a multiple objective linear fractional programming problem. Proposed methods to solve this problem do not guarantee that any of the obtained common set of weights is Pareto efficient solution of the multiple objective programming problem. This difficulty leads to underestimate efficiency of evaluating units. Thus, it is useful to present a method that can produce common set of Pareto efficient weights. In this paper, multiple objective linear fractional model will be changed to a linear model for producing common set of weights.
PDF:

DOWNLOAD
Article title:
Investigating different models for estimation of longitudinal velocity distribution in rectangular open channels
Authors:
Negin Binesh, Hossein Bonakdari
Abstract:
Determination of velocity distribution is one of the basic aspects in open channel flow studies. Knowledge of velocity distribution in a flow cross section is helpful to solve typical problems of open channel flow and to find out related variables like boundary shear stress, and flow resistance. It has been found that many factors including the bed and wall roughness, channel section, width to depth ratio, etc. affects the distribution of velocity.
PDF:

DOWNLOAD
Article title:
Ezafe Detection in Persian Language Processing
Authors:
Hamid Reza Yousofian; Hossein Malekinezhad
Abstract:
In Persian language,Ezafe vowels are usually not written, but are recognized and pronounced by human and are used to link words in some contexts.Ezafe marker can be placed into noun phrases and adjective phrases in order to facilitate the correctpronunciation.In this paper, we investigate the problem of Ezafe recognition in Persian language. Ezafe recognition is a useful process for many applications related to natural language processing such as text to speech tools and for identifying the dependency of a word in a Noun Phrase.
PDF:

DOWNLOAD
Article title:
An Efficient Fingerprint Image Encryption Algorithm
Authors:
Hossein Malekinezhad; Hossein Ebrahimpour-Komleh
Abstract:
In this paper, we proposed a fingerprint image encryption algorithm based on permutation and diffusion operations in wavelet domain in order to enhance the protection of fingerprint-based systems against replay attacks. First, one-level Lifting Wavelet Transform Integer-to-Integer is performed to the original fingerprint image. The approximation and details sub-bands are then partitioned into blocks and permuted using a permutation key
PDF:

DOWNLOAD
Article title:
Low-power and high-speed full adder using NP-CMOS technology
Authors:
Alireza Moridi; Hamidreza Sadr Manuchehri
Abstract:
In this paper a adder with limited dynamic power disposal is presented by CMOS technology. This design is plotted based on NP-CMOS and Domino logic. This cell is compared with some similar cases that were used widely.The main object of this research is studding of power, delay, PDP and convenient operation of full adder cells in various methods. Results of Simulation indicate distinction of foresaid full adder toward other models. All the simulations are accomplished via Hspice by CMOS technology and 180nm
PDF:

DOWNLOAD
Article title:
Efficiencies of two- stage production systems
Authors:
Ali Abbasi Molai, SinaNemati
Abstract:
In this paper, a new approach is proposed to compute the process and system efficiencies in two- stage systems. The system is formed two parts. The first part is a parallel system which is serially connected to the second part. In this model, the whole system contains one input and one output. The input of the first stage is consumed by some parallel internal processes.
PDF:

DOWNLOAD
Article title:
Overview of Soft Computing Techniques for Load Balancing of
Virtual Machines in Cloud Computing
Authors:
Alireza Mahini; Rogheyeh Salehi
Abstract:
Cloud computing is the emerging internet based technology.Cloud is a platform providing dynamic pool resources and virtualization.To properly manage the resources of the service provider we require balancing the load of the jobs that are submitted to the service provider. Load balancing is required as we don’t want one centralized server’s performance to be degraded. A lot of algorithms have been proposed to do this task. This research studies the soft computing techniques used for load balancing in cloud computing environments.
PDF:

DOWNLOAD
Article title:
Open Source of data mining software capabilities
Authors:
Mohammad Bagheri; Sedigheh Asadi Mehr; Mahyar Daryanavard Chounchnani
Abstract:
Enormous amounts of data that organizations are increasing steadily, and no use of this knowledge is hidden within the data. Organizations decide to use this knowledge to make their own decisions without the associated errors are greatly reduced and the quality of decisions. With the expansion of the volume of data stored in database systems and these systems need tools to allow stored data to be processed and the data provided in this contract and the processing of data into valuable knowledge to make the otherwise well done.
PDF:

DOWNLOAD
Article title:
Feature selection with evolutionary algorithms in classification of Persian texts
Authors:
Akram Roshdi
Abstract:
Today, with the increasinglygrowing volume of textinformation, text classification methods seem to be essential. Also, increasein the volume of Persian text resources adds to the importance of this issue. However, classification works which havebeen especially done in Persian are not still as extensive as thoseof Latin, Chinese, etc.In this article, a model was proposed based on genetic algorithm and particle swarm that selected or extracted a subset from the set of input feature vector and then applied four classifiersof naive Bayesian(NB), support vector machine (SV), decision tree (DT), and k nearest neighbor (KNN) for the classification of Persiantexts. Results of the tests obtained from the implementation of the proposed system on a set of Hamshahri texts indicatedits improved precision, recall, and overall efficiency.
PDF:

DOWNLOAD
Article title:
A Prediction Algorithm For Cache Management In Mobile Cloud Computing
Authors:
Soha Kasemil Kamran Zamanifar; Naser Nematbakhsh
Abstract:
Mobile cloud computing has been created on mobile devices due to preexisting problems such as low ram memory, high consumption of batteries and low power of processor. By using the cloud technology mobile users are able to use heavy files, large applications and complex processing. Lack of bandwidth, it is necessary to invent a new system to improve the quality of services for users. In this paper we have tried to examine the state of cloud features in mobile cloud computing and offer a new algorithm to develop a cache predictive method and thus improve service quality. Our proposed algorithm is optimal .
PDF:

DOWNLOAD
Article title:
The effect of mobile phase composition on the retention of some of anthraquinone derivatives in the reversed-phase high performance liquid chromatography (RP-HPLC)
Authors:
Parisa Nakhli; Ali Asqar Amiri; Fatemeh Abasi Tabar
Abstract:
Anthraquinones as a type of quinone compound are widely used in biochemistry, pharmaceutical Industry, and dye industry. The widespread use of these compounds in chemotherapy is due to their anti-tumor activity. Therefore, it is important to find an appropriate method for the accurate and rapid measurement of these medications. The retention factor is a significant parameter which is widely used for describing the migration of dissolved molecules in the chromatography columns. This study aims at investigating the effect of mobile phase composition on the retention of anthraquinone derivatives in the reversed-phase high performance liquid chromatography (RP-HPLC). The data in this study includes 18 molecules of the anthraquinone compounds.
PDF:

DOWNLOAD
Article title:
Design a new controller for UPFC to enhance transient stability in power systems
Authors:
Abdolkarim Behravan; Hadi Chahkandi Nejad; Mohammad Rezayi; Hossein Behravan
Abstract:
In this study, we have established a new controller for UPFC to improve transient stability. As the first step, the effects of UPFC on transient stability are investigated, and then a mathematical model to describe its behavior to improve transient stability is provided. In the modeling, we assume that the UPFC is composed of two sources: a series voltage source and a shunt current source. After this, by using fore-mentioned model, we have established the proposed controller. The controller operation is based on predicting the power system oscillation frequency. When we have the oscillation frequency, in the appropriate time we can inject a suitable counteractive power into system. In the further step, we have simulated the UPFC with its proposed controller in the Simulink.
PDF:

DOWNLOAD
Article title:
Design a new controller for UPFC to enhance transient stability in power systems
Authors:
Abdolkarim Behravan; Hadi Chahkandi Nejad; Mohammad Rezayi; Hossein Behravan
Abstract:
In this study, we have established a new controller for UPFC to improve transient stability. As the first step, the effects of UPFC on transient stability are investigated, and then a mathematical model to describe its behavior to improve transient stability is provided. In the modeling, we assume that the UPFC is composed of two sources: a series voltage source and a shunt current source. After this, by using fore-mentioned model, we have established the proposed controller.
PDF:

DOWNLOAD
Article title:
Hydrologic Simulation of Taham Chai Basin Located At Northwest of Zanjan, Using Geographic Information System (GIS), WMS and HEC-HMS Softwares
Authors:
Ali Rezvani Mahmouee; Mohammad Arjmand; Mohsen Rezaee
Abstract:
Mathematical modeling for flood estimation is one of the methods used in regions where the statistics is lacking. One of the most powerful softwares in hydrological analyzing of drainage basins is WMS/HEC-HMS (Hydrologic Engineering Center- Hydrologic Modeling System). Using this modeling and comparing it with observational data, hydrological response capacity of a given basin to precipitation can be viewed and analyzed.
PDF:

DOWNLOAD
Article title:
Using CMAC Neural Network for Traffic Light Control
Authors:
Vahid Chegeni; Ehsan Heidari
Abstract:
Since the number of users on road always increase and the existing sources are limited, the traffic flow can be enhanced using intelligent traffic management, and in particular traffic light timing optimization. Control of the traffic light and coordinate of them is a complex problem, and nonlinear in nature, which vary according to the time. Thus, using the fixed-cycle algorithms and other intelligent algorithms, such as genetic algorithm are not efficient. In this paper, CMAC neural network is utilized to optimize traffic light timing, in which the error rate is proportionate to the delay time.
PDF:

DOWNLOAD
Article title:
A Reviews on Evolutionary Algorithm for Feature Selection
Authors:
Sayedeh Parisa Moosavi; Farsad Zamani Boroujeni; Sayed Amirhassan Monajemi
Abstract:
Have increased dramatically. In most of the applications datasets have more feature relative to few patterns available for the classification task. This makes the most of the features to have negative effect on the learning process. One important and common method for solving this problem is application of feature selection techniques that aiming to select the most suitable features among primary feature sets for increasing the performance of the learning algorithm. In many cases, due to computational expenses, comprehensive search for finding the most suitable features is almost impossible. This paper reviews the state of the art evolutionary algorithms proposed for dimensionality reduction and feature selection in large datasets.
PDF:

DOWNLOAD
Article title:
Processing and Programming the Semantic Web
Authors:
Mohammad Reza Sharafi Hoveyda, Mohammad Mohammadi Javid
Abstract:
Since web Main production, import, store and display the data has been successful, but the recovery process still remains a problem. The first wave of the web, including the maximum amount of information into a form that can be directly in the form of hyper text markup language (HTML) displayed may be to the audience in. Databases every day more and more work to produce the information in a way that before displaying to the user, can be read by other computers to be processed. Processing means typing the words wisely work is usually much easier than doing it in perfect shape for the human machine.
PDF:

DOWNLOAD
Article title:
Characteristics of seismicity and the estimation of seismic parameters of Geraty Dam of Esfarayen
Authors:
Mohsen Rezaee; Mansur Chakhorzade; Ali Rezvani Mahmouee; Mojtaba Barghamdi
Abstract:
Given the importance of the ground acceleration values and seismic parameters within the boundaries of dams, the major faults in the study area of Graty Dam is firstly introduced; then, through the Gutenberg– Richter method, and Kijku maximum likelihood estimation, seismicity parameters are presented. Then, to estimate peak horizontal ground acceleration values, the method of estimating ground motion parameters based on seismic point sources and estimating the peak ground acceleration based on linear and areal seismic source is used.
PDF:

DOWNLOAD
Article title:
Characterization of fuzzy complete normed space and fuzzy b-compact set
Authors:
Hamid Reza Moradi; Mona Moradi
Abstract:
In this paper, we introduce the notion of the complete fuzzy norm on a linear space and we consider some relations between the fuzzy completeness and ordinary completeness on a linear space, moreover a new form of fuzzy compact spaces, namely b-compact spaces, b-closed space is introduced. Some characterization of their properties is obtained.
PDF:

DOWNLOAD
Article title:
The Effect of Parallel Implementation on the Speedup of Numerical Calculations of Partial Derivatives in Cartesian Coordinates
Authors:
Zahra Fahradynia; Mohamad Ali Jebraeil Jamali; Hossein Ebady
Abstract:
Reading Del is a useful operator in mathematics and physics.The speed of calculation can be increased by the parallel implementation of this operator. The results of the implementation of this operator on a quad-core processor show that the calculation speed will increase by up to three times and by implementation on a graphic processor the speed will increase by up to eighteen times.
PDF:

DOWNLOAD
Article title:
Simulation of flow from under the Diversion Dam and cut-off wall effects with finite volume method
Authors:
Mohammad Hassan Hussein Nejad Belko; Sajjad Shakerian; Amir Hamza Haghi Abi; Hassan Turabi Podeh
Abstract:
Including measures to prevent the piping phenomena, reduction the outflow gradient and the leaking flow rate of sub-hydraulic structures is construction of cut-off walls dam. Therefore, this study was conducted to investigate the effect of cut-off wall on pressure gradient and uplift force, a computer model has been developed that the general equation for water flow in saturated homogeneous soil, due to the location of the cut-off walls dam in upstream (heel), downstream (toe) and middle Diversion Dam with identical conditions, has been solved using the finite volume approach.
PDF:

DOWNLOAD
Article title:
Design of Cam and its Synthesis
Authors:
Hossein Safaeifar
Abstract:
Cam is a member of machines which with its irregular shape as a driver can transfer motion to another member named follower. In this research, design of 2 specific cams with kinematics analysis is achieved. For this reason, first a specific motion function is selected. By use of this motion function, circumferential curve of cam is achieved. Afterwards velocity and acceleration analysis of both cams achieved and curve of velocity and acceleration value of both cams are drawn. All analyses are done in MATLAB.
PDF:

DOWNLOAD
Article title:
Fuzzy Inference for Intrusion Detection of Web Robots in Computer Networks
Authors:
Mahdieh Zabihi, Majid Vafaei Jahan, Javad Hamidzadeh
Abstract:
Distinction between humans and web robots, in terms of computer network security, has led to the robot detection problem. An exact solution for this issue can preserve web sites from the intrusion of malicious robots and increase the performance of web servers by prioritizing human users. In this article, we propose a novel method called FID (Fuzzy Intrusion Detection), for accurate intrusion detection of web robots, in computer networks.
PDF:

DOWNLOAD