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Toward A Framework For Business Activity Monitoring Based On Enterprise Service Bus
, M.Sc. Thesis Sharif University of Technology ; Habibi, Jafar (Supervisor) ; Abtahi, Ebrahim (Co-Advisor)
Abstract
Business Activity Monitoring (BAM) is a method for evaluating current condition of organization from the viewpoint of reaching to its strategic objectives and helps man-agerstobe informed straight forwardly about thecurren tstatu sofeach Key Performance Indicator (KPI). Enterprise Service Bus (ESB) is an infrastructure for transferring web services between some software components that performs in Service Oriented Archi-tecture (SOA) domain and its goal is improving interoperability between components.As BAM needs to interact with other systems to receive event flow and ESB assists this interaction, there is a need to define a general framework to establish communication between them and...
Towards A Framework for Knowledge Acquisition in Decision Support System in Software Architecture Domain
, M.Sc. Thesis Sharif University of Technology ; Habibi, Jafar (Supervisor) ; Abtahi, Ebrahim (Co-Advisor)
Abstract
Making Decision about software architecture design is a multi-criteria problem which depends on different factors. One of the main problems in software architecture is the high cost and complexity of Decision making which is rooted in knowledge vaporiza-tion. In fact current developers of the system are not necessarily the primary designers of the architect. Thus, the system cannot be understood without the knowledge about the history of the architecture. Additionally, a good organization of knowledge will be helpful in terms of knowledge reuse and best practices which leads to low cost of architecture.Due to the importance of knowledge in software architecture, knowledge acquisition as well...
Understanding an Object-oriented Framework’s Evolution via Analyzing the Evolution of its Concepts Across Different Versions of that Framework
, M.Sc. Thesis Sharif University of Technology ; Habibi, Jafar (Supervisor) ; Abtahi, Ebrahim (Co-Advisor)
Abstract
Programmers often use object-oriented application frameworks, such as Eclipse, due to their several advantages, some of which are: providing a standard platform for designing and implementing software systems, enabling the reuse of both code and design,reducing the development’s time and costs, and increasing the maintainability of systems.However, frameworks evolve over time because of new requirements or fixing bugs. Therefore, the programs that had been written on top of those frameworks also need to evolve to become compatible with them; otherwise, they may crash.This thesis presents an approach that comprehends the evolution of frameworks through comprehending the evolution of the...
Improving Network Structure and Behavior via Redundancy Injection with a Limited Budget
,
M.Sc. Thesis
Sharif University of Technology
;
Habibi, Jafar
(Supervisor)
;
Abtahi, Ebrahim
(Supervisor)
Abstract
Improving the network structure is one of the most important challenges in network research. Improving network structure is performed in order to achieve various goals such as refining routing and robustness.
Having an eye on the structure of a real packet switched communication network as an example, we have tried to improve its performance in those regards by injecting a small number of edges to the network in this project. To reach this goal, we have analyzed the current approaches in approximation algorithms in theoretical computer science, methods currently used in analyzing complex networks and heuristics that are based on network structure. Comparing the advantages and...
Having an eye on the structure of a real packet switched communication network as an example, we have tried to improve its performance in those regards by injecting a small number of edges to the network in this project. To reach this goal, we have analyzed the current approaches in approximation algorithms in theoretical computer science, methods currently used in analyzing complex networks and heuristics that are based on network structure. Comparing the advantages and...
An investigation into non-covalent functionalization of a single-walled carbon nanotube and a graphene sheet with protein G:A combined experimental and molecular dynamics study
, Article Scientific Reports ; Volume 9, Issue 1 , 2019 ; 20452322 (ISSN) ; Ghobeh, M ; Aghakhani Mahyari, F ; Rafii Tabar, H ; Sasanpour, P ; Sharif University of Technology
Nature Publishing Group
2019
Abstract
Investigation of non-covalent interaction of hydrophobic surfaces with the protein G (PrG) is necessary due to their frequent utilization in immunosensors and ELISA. It has been confirmed that surfaces, including carbonous-nanostructures (CNS) could orient proteins for a better activation. Herein, PrG interaction with single-walled carbon nanotube (SWCNT) and graphene (Gra) nanostructures was studied by employing experimental and MD simulation techniques. It is confirmed that the PrG could adequately interact with both SWCNT and Gra and therefore fine dispersion for them was achieved in the media. Results indicated that even though SWCNT was loaded with more content of PrG in comparison with...
Protein G selects two binding sites for carbon nanotube with dissimilar behavior; a molecular dynamics study
, Article Journal of Molecular Graphics and Modelling ; Volume 87 , 2019 , Pages 257-267 ; 10933263 (ISSN) ; Ghobeh, M ; Aghakhani Mahyari, F ; Rafii Tabar, H ; Sasanpour, P ; Sharif University of Technology
Elsevier Inc
2019
Abstract
Background: Study of nanostructure-protein interaction for development of various types of nano-devices is very essential. Among carbon nanostructures, carbon nanotube (CNT) provides a suitable platform for functionalization by proteins. Previous studies have confirmed that the CNT induces changes in the protein structure. Methods: Molecular dynamics (MD) simulation study was employed to illustrate the changes occurring in the protein G (PGB) in the presence of a CNT. In order to predict the PGB surface patches for the CNT, Autodock tools were utilized. Results: Docking results indicate the presence of two different surface patches with diverse amino acids: the dominant polar residues in the...
Game Theoretic Study of Prediction Markets
, M.Sc. Thesis Sharif University of Technology ; Habibi, Jafar (Supervisor) ; Abtahi, Ebrahim (Co-Advisor)
Abstract
Nowadays, prediction markets and decision markets are among the common methods for predicting future events. There are many studies on these markets and some models are developed for analyzing them. Score rule is a classic method that is used for many years for information elicitation in weather forecasting, economical predictions and predicting sport games’ results. In this thesis, a study on score rules, prediction and decision markets was conducted. These studies resulted in a new model for predicting the value of a variable in future. This model was designed as a proper score rule in its primary form. Then features which were discussed in this new literature were defined, and it was...
Towards a Knowledge-Based Approach for Creating Software Architecture Patterns Ontology
, M.Sc. Thesis Sharif University of Technology ; Habibi, Jafar (Supervisor) ; Abtahi, Ebrahim (Co-Advisor)
Abstract
Software architecture patterns present solutions for facing with architecture problems and help to document the architectural design decisions. But diversity, complexity, and required expertise for selecting an appropriate pattern, would cause some difficulties in using architectural patterns. Using an ontology for registration of architectural patterns playing an efficient role in solving those problems. But the mentioned difficulties make the process of constructing the architectural patterns ontology more complicated. This thesis proposes an approach that would consider the construction of the architectural patterns ontology from four perspectives in order to overcome the ontology...
The quenching of silver rod in boiling carbon nano tube-water nanofluid
, Article International Journal of Thermal Sciences ; Volume 75 , 2014 , Pages 95-104 ; ISSN: 12900729 ; Saboonchi, A ; Shafii, M. B ; Sharif University of Technology
2014
Abstract
It is well established that nanofluids increase or decrease heat transfer in boiling phenomenon. The study acquired Quenching curve and boiling curve in two different surface roughnesses in two fluids: deionized water and the nanofluid MWCNT-water with four different concentrations. The cylinder was made of silver and two surface roughnesses of 129 and 690 nm. It was heated up and soaked in the fluid mentioned above. Temperature was recorded by a drilled to install thermocouple. The experiment was replicated in five times. To calculate the heat transfer quotient, assuming the cylinder to be thermally homogeneous, the Lumped capacity method was applied. The obtained results during quenching...
The study of magnetic field implementation on cylinder quenched in boiling ferro-fluid
, Article Applied Thermal Engineering ; Volume 64, Issue 1-2 , March , 2014 , Pages 331-338 ; ISSN: 13594311 ; Saboonchi, A ; Shafii, M. B ; Jahani, N ; Sharif University of Technology
2014
Abstract
It has been shown that nanofluids in different investigations increase or decrease heat transfer rate in boiling phenomenon. The present study examined the effects of ferro-fluid concentrations and magnetic field implementation on the fluid throughout the boiling process. Obtained are the quenching curve and boiling curve on specified surface roughness in both water and ferro-fluid with two different concentrations. A silver cylinder with Aspect ratio of 10, and surface roughness of 689 nm was heated up to 350 C and then was overwhelmed in the fluid under study. Temperatures were measured by a thermocouple which installed in the center of the cylinder. The test was carried out 5 times. The...
A clustering-based algorithm for de novo motif discovery in DNA sequences
, Article 2017 24th Iranian Conference on Biomedical Engineering and 2017 2nd International Iranian Conference on Biomedical Engineering, ICBME 2017, 30 November 2017 through 1 December 2017 ; 2018 ; 9781538636091 (ISBN) ; Fatemizadeh, E ; Sharif University of Technology
2018
Abstract
Motif discovery is a challenging problem in molecular biology and has been attracting researcher's attention for years. Different kind of data and computational methods have been used to unravel this problem, but there is still room for improvement. In this study, our goal was to develop a method with the ability to identify all the TFBS signals, including known and unknown, inside the input set of sequences. We developed a clustering method specialized as part of our algorithm which outperforms other existing clustering methods such as DNACLUST and CD-HIT-EST in clustering short sequences. A scoring system was needed to determine how much a cluster is close to being a real motif. Multiple...
Controlling best response dynamics for network games
, Article IEEE Transactions on Network Science and Engineering ; March , 2018 ; 23274697 (ISSN) ; Maazallahi, A ; Habibi, J ; Habibi, M ; Sharif University of Technology
IEEE Computer Society
2018
Abstract
Controlling networked dynamical systems is a complex endeavor, specifically keeping in mind the fact that in many scenarios the actors that are engaged in the dynamism behave selfishly and therefore only take into account their own individual utility, a setting that has been widely studied in the field of game theory. One way that we can control the system dynamics is through the use of control parameters that are at our disposal, but finding optimal values for these parameters is a complex and time consuming task. In this paper we use the relation between network structural properties and control parameters to create a mathematical model that uses learning methods to find optimal values...
The power of punica granatum: a natural remedy for oxidative stress and inflammation; a narrative review
, Article Journal of Ethnopharmacology ; Volume 330 , 2024 ; 03788741 (ISSN) ; Mohammadkhani, N ; Azizi, B ; Mohammadi, M ; Ebrahimpour, S ; Tabatabaei Malazy, O ; Mirsadeghi, S ; Ale Ebrahim, M ; Sharif University of Technology
2024
Abstract
Ethnopharmacological relevance: Pomegranate 'Punica granatum' offers multiple health benefits, including managing hypertension, dyslipidemia, hyperglycemia, insulin resistance, and enhancing wound healing and infection resistance, thanks to its potent antioxidant and anti-inflammatory properties. It has been symbolized by life, health, femininity, fecundity, and spirituality. Aim of the study: Although laboratory and animal studies have been conducted on the healing effects of pomegranate, there needs to be a comprehensive review on its anti-oxidative and anti-inflammatory effects in chronic disorders. We aim to provide a comprehensive review of these effects based on in-vitro, in-vivo, and...
Universal Novelty Detection Through Adaptive Contrastive Learning
, Article Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition ; 2024 , Pages 22914-22923 ; 10636919 (ISSN); 979-835035300-6 (ISBN) ; Nafez, M ; Jafari, M ; Soltani, M. B ; Azizmalayeri, M ; Habibi, J ; Sabokrou, M ; Rohban, M. H ; Sharif University of Technology
2024
Abstract
Novelty detection is a critical task for deploying machine learning models in the open world. A crucial property of novelty detection methods is universality, which can be interpreted as generalization across various distributions of training or test data. More precisely, for novelty detection, distribution shifts may occur in the training set or the test set. Shifts in the training set refer to cases where we train a novelty detector on a new dataset and expect strong transferability. Conversely, distribution shifts in the test set indicate the methods' performance when the trained model encounters a shifted test sample. We experimentally show that existing methods falter in maintaining...
On the energy performance of the geothermal dehumidifier of the humidification-dehumidification desalination system
, Article Heat Transfer Engineering ; Volume 45, Issue 6 , 2024 , Pages 507-527 ; 01457632 (ISSN) ; Asgari, B ; Hakkaki Fard, A ; Sharif University of Technology
2024
Abstract
The solar-driven humidification-dehumidification desalination system with a geothermal dehumidifier (SD-HDH-GD) has been given special attention, especially for subsurface irrigation. This contribution scrutinizes the performance of the geothermal dehumidifier of the SD-HDH-GD system. To this aim, a comprehensive three-dimensional transient computational fluid dynamics model of the geothermal dehumidifier and the surrounding soil is developed. An experimental setup is established to verify the developed numerical model. The effect of several operating parameters on the performance of the system is examined. The sensitivity of the water yield, recovery ratio, and gain output ratio to the...
Frequency characteristics of a GPL-reinforced composite microdisk coupled with a piezoelectric layer
, Article European Physical Journal Plus ; Volume 135, Issue 2 , January , 2020 ; Ebrahimi, F ; Supeni, E. E. B ; Habibi, M ; Safarpour, H ; Sharif University of Technology
Springer
2020
Abstract
This is the first research on the frequency analysis of a graphene nanoplatelet composite (GPLRC) microdisk in the framework of a numerical-based generalized differential quadrature method. The stresses and strains are obtained using the higher-order shear deformable theory. Rule of mixture is employed to obtain varying mass density, thermal expansion, and Poisson’s ratio, while module of elasticity is computed by modified Halpin–Tsai model. Governing equations and boundary conditions of the GPLRC microdisk covered with piezoelectric layer are obtained by implementing Hamilton’s principle. Regarding perfect bonding between the piezoelectric layer and core, the compatibility conditions are...
Co-hydrothermal carbonization of digested sewage sludge and sugarcane bagasse: Integrated approach for waste management, optimized production, characterization and Pb(II) adsorption
, Article Alexandria Engineering Journal ; Volume 74 , 2023 , Pages 79-105 ; 11100168 (ISSN) ; Keshavarz Moraveji, M ; Shayegan, J ; Sharif University of Technology
Elsevier B.V
2023
Abstract
Integrated biomass waste management and fresh water supply are crucial environmental problems that researchers are laboring to clarify today. The co-hydrothermal carbonization (co-HTC) of sugarcane bagasse (SB) and digested sewage sludge (DSS), with KOH activation, for SB and DSS waste management, was accomplished. In this research, the effect of process parameters and biomass ratio during co-HTC on modified hydrochar adsorption capacities was critically evaluated. To optimize operating parameters (temperature, time, catalyst/precursor ratio, water/precursor ratio, and SB/DSS ratio, response surface methodology was used. The optimum condition was 180 °C, 9.6 h, 3/1 DSS/SB ratio ([Formula...
Security and privacy analysis of song-mitchell RFID authentication protocol
, Article Wireless Personal Communications ; Volume 69, Issue 4 , May , 2013 , Pages 1583-1596 ; 09296212 (ISSN) ; Aref, M. R ; Sharif University of Technology
2013
Abstract
Many applications, such as e-passport, e-health, credit cards, and personal devices that utilize Radio frequency Identification (RFID) devices for authentication require strict security and privacy. However, RFID tags suffer from some inherent weaknesses due to restricted hardware capabilities and are vulnerable to eavesdropping, interception, or modification. The synchronization and untraceability characteristics are the major determinants of RFID authentication protocols. They are strongly related to privacy of tags and availability, respectively. In this paper, we analyze a new lightweight RFID authentication protocol, Song and Mitchell, in terms of privacy and security. We prove that not...
Attacks on Recent RFID Authentication Protocols
, Article Journal of Signal Processing Systems ; Volume 79, Issue 3 , 2015 , Pages 271-283 ; 19398018 (ISSN) ; Aref, M. R ; Sharif University of Technology
Springer New York LLC
2015
Abstract
The developing of RFID systems in sensitive applications like e-passport, e-health, credit cards, and personal devices, makes it necessary to consider the related issues such as maximum reading distance, communication speed and data security. The use of signal processing methods is an efficient and convenient way to achieve the maximum reading distance and communication rate. However, the signal processing techniques are not adequate to provide a reasonable level of security and privacy for RFID systems. Thus, it is necessary to employ specific authentication protocols which assure data security and preserve the user’s privacy. Among other security and privacy characteristic of an RFID...
Bulk wave propagation analysis of imperfect FG bio-composite beams resting on variable elastic medium
, Article Materials Today Communications ; Volume 39 , 2024 ; 23524928 (ISSN) ; Habibi, M ; Habibi, M ; Sharif University of Technology
2024
Abstract
Bio-composites are outstanding alternatives to prevalent biomaterials in medical instruments due to their supreme material properties. On the other hand, mechanical analyses of bio-systems should be carried out to optimize the designed biomedical applications such as medical implants. Therefore, bulk wave propagation analysis of functionally graded (FG) bio-composite beams could serve as design targets of biomedical structures. Some applications like medical implants have a layered structure and FG composites will be an appropriate choice for constitutive material of such structures. In the current study, the influence of imperfection on the propagation of bulk waves in FG bio-composite...