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Modeling and Evaluation of Hybrid Covert Timing Channel on InterNet Using Coloured Petri Net

کلیدواژه: Covert Timing Channel,Inter-Packet Gap,Packet Reordering,Packet Loss,Modeling Coloured Petri Net

نویسندگان: DEHGHANI M., SALEH ESFAHANI M.

ناشر: علوم و فناوری های پدافند نوین - Advanced Defense Science and Technology

Covert Timing channels are used to transmit information through computer Networks in a seamless or secret way. Inter-Packet gap and Packet reordering are among techniques of encoding information in Covert channels. Several reports on evaluating the capacity and the robustness of Covert channels are ... ادامه

سال:2014

نوع سند: Article

0 دانلود

11 بازدید

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Hybrid Time Delay Petri Nets as a Mathematical Novel Tool to Model Dynamic System with Current Sample Time

کلیدواژه: Hybrid Petri Nets,Current sample time signals,Capsubot robot,Genetic algorithm

نویسندگان: Ahangarani Farahani A., DIDEBAN A.

ناشر: کنترل و بهینه سازی در ریاضیات کاربردی - CONTROL AND OPTIMIZATION IN APPLIED MATHEMATICS

The existing modeling methods using Petri Nets, have been successfully applied to model and analyze dynamic systems. However, these methods are not capable of modeling all dynamic systems such as systems with the current sample time signals, systems including various subsystems and multi-mode system... ادامه

سال:2018

نوع سند: Article

3 دانلود

15 بازدید

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Portfolio Diversification and Net Selectivity Performance of Mutual Funds in Iran by Using Fama Decomposition Model

کلیدواژه: Fama Decomposition Model,Mutual Funds,Net Selectivity,Diversification,Risk

نویسندگان: Sadeghi Goghari Samira, SOURI ALI, abbasinejad hosein, MEHRARA MOHSEN

ناشر: IRANIAN ECONOMIC REVIEW - IRANIAN ECONOMIC REVIEW

T he main purpose of this paper is to analyze the performance of mutual funds in Iran by using Fama decomposition model (1972). Thus, daily data of 55 mutual funds during a four-year period from 21/3/2014 to 21/3/2018 were investigated. To achieve this goal, firstly, the performance of mutual funds ... ادامه

سال:2020

نوع سند: Article

1 دانلود

11 بازدید

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Hybrid Analytical Models based on Queueing Networks and Generalized Stochastic Petri Nets for Performance Analysis of Load Balancing in Cloud Systems

کلیدواژه: Analytical modeling,Queueing network,Petri network,Cloud computing,Load balancing

نویسندگان: Ataie Ehsan

ناشر: رایانش نرم و فن آوری اطلاعات - JOURNAL OF SOFT COMPUTING AND INFORMATION TECHNOLOGY (JSCIT)

In this paper, analytical models are presented for modeling cloud load balancing mechanism combing queueing Networks (QNs) and generalized stochastic Petri Nets (GSPNs). To this end, a hybrid model is proposed to model a cluster inside an Infrastructure-as-a-Service (IaaS) cloud data center in the f... ادامه

سال:2022

نوع سند: Article

0 دانلود

6 بازدید

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The Macroeconomic Effects of Tax Shocks in Iran: A Hybrid Idetification Approach for SVAR Model with Emphasis of the Effects Timing

کلیدواژه: Tax Shock,Direct tax,Indirect tax,Inflation,Structural Vector Autoregression Model (SVAR),Impulse Response Function

نویسندگان: MOHAMMADI TEYMOUR, Mazhari Moosavi Saeedeh Sadat, SHAKERI ABBAS, ARBAB HAMID REZA

ناشر: راهبرد اقتصادی - ECONOMIC STRATEGY

Due to the importance of varying degrees of disturtion of different tax bases, the need to identify and prioritize different tax bases in Influencing macroeconomic variables is essential. Therefore, the main purpose of this paper is to investigate the impact of (direct) and (indirect) tax shocks on ... ادامه

سال:2020

نوع سند: Article

0 دانلود

11 بازدید

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The Effect of Fundamental Variables of Mutual Funds on the Ability of the Manager to Select the Appropriate Stock and Accurate Market Timing

کلیدواژه: Fundamental Variables,Mutual Fund,Manager Ability,Accurate Market Timing

نویسندگان: HASSANI MOHSEN, LALBAR ALI

ناشر: توسعه و سرمایه - JOURNAL OF DEVELOPMENT AND CAPITAL

Objective: The structure of mutual funds and, of course, other reasons cause the management of these funds to trade based on evaluation criteria. Unexpected cash flows allow managers to constantly maintain the balance of their portfolios to control liquidity. Investment fund managers must provide li... ادامه

سال:2020

نوع سند: Article

0 دانلود

14 بازدید

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An Evaluation of Mutual Funds Performance in Iranian Capital Market by combining Market Timing Models with the Fama and French three Factor Model

کلیدواژه: market-timing,security selection,combined models,mutual fund,Fama & French model

نویسندگان: Abdoh Tabrizi Hossein, asadi gharehjeloo behrang

ناشر: دانش سرمایه گذاری - INVESTMENT KNOWLEDGE

The aim of this study is to consider the combination of market Timing models with Fama-French three factor model to evaluate the performance of mutual funds in Iran capital market. To follow this purpose, a sample of 12 mutual funds for the years of 2011-2015 has been chosen. At first step, active m... ادامه

سال:2019

نوع سند: Article

0 دانلود

9 بازدید

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