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Full-Text Articles in Engineering
A Decentralized Latency-Aware Task Allocation And Group Formation Approach With Fault Tolerance For Iot Applications, Muhammad Mudassar, Yanlong Zhai, Lejian Liao, Jun Shen
A Decentralized Latency-Aware Task Allocation And Group Formation Approach With Fault Tolerance For Iot Applications, Muhammad Mudassar, Yanlong Zhai, Lejian Liao, Jun Shen
Faculty of Engineering and Information Sciences - Papers: Part B
Development of internet of things (IoT) and smart devices eased life by offering numerous applications targeting to provide real-time low latency services, but they also brought challenges in handling huge data generated from the powerful computations, to get a job done. Decentralized edge computing could help to achieve latency requirements of the applications by executing them closer to the user at edge of network, but most of the current studies actually deployed centralized approaches for cluster computing at edge, which put extra overhead of cluster formation and management. In this article, we propose to group heterogeneous edge nodes on task …
A New Approach To Keep The Privacy Information Of The Signer In A Digital Signature Scheme, Dung Hoang Duong, Willy Susilo, Viet Cuong Trinh
A New Approach To Keep The Privacy Information Of The Signer In A Digital Signature Scheme, Dung Hoang Duong, Willy Susilo, Viet Cuong Trinh
Faculty of Engineering and Information Sciences - Papers: Part B
In modern applications, such as Electronic Voting, e-Health, e-Cash, there is a need that the validity of a signature should be verified by only one responsible person. This is opposite to the traditional digital signature scheme where anybody can verify a signature. There have been several solutions for this problem, the first one is we combine a signature scheme with an encryption scheme; the second one is to use the group signature; and the last one is to use the strong designated verifier signature scheme with the undeniable property. In this paper, we extend the traditional digital signature scheme to …
The Role Of Particle Shape On The Hydraulic Conductivity Of Granular Soils Captured Through Kozeny-Carman Approach, Thanh Trung Nguyen, Buddhima Indraratna
The Role Of Particle Shape On The Hydraulic Conductivity Of Granular Soils Captured Through Kozeny-Carman Approach, Thanh Trung Nguyen, Buddhima Indraratna
Faculty of Engineering and Information Sciences - Papers: Part B
Previous studies indicate that particle shape plays an important role in the hydraulic conductivity (k) of granular materials, often represented through the Kozeny-Carman (KC) concept. Several recent studies have improved the accuracy of the KC approach using the particle size distribution (PSD) to estimate the specific surface area of particles but overly simplifying the effect of particle shape. This current study innovatively adopts the Micro-Computed Tomography (CT) technique to compute particle shape parameters of different granular materials (e.g., glass beads, sand and crushed gravel) and then incorporate these parameters into the KC equation to estimate k more accurately, which is …
Pricing Of Barrier Options On Underlying Assets With Jump-Diffusion Dynamics: A Mellin Transform Approach, Marianito R. Rodrigo
Pricing Of Barrier Options On Underlying Assets With Jump-Diffusion Dynamics: A Mellin Transform Approach, Marianito R. Rodrigo
Faculty of Engineering and Information Sciences - Papers: Part B
A barrier option is an exotic path-dependent option contract where the right to buy or sell is activated or extinguished when the underlying asset reaches a certain barrier price during the lifetime of the contract. In this article we use a Mellin transform approach to derive exact pricing formulas for barrier options with general payoffs and exponential barriers on underlying assets that have jump-diffusion dynamics. With the same approach we also price barrier options on underlying futures contracts.
Robust Extended H∞ Control Strategy Using Linear Matrix Inequality Approach For Islanded Microgrid, Maniza Armin, Mizanur Rahman, Md Mukidur Rahman, Subrata K. Sarker, Sajal Das, Md Rabiul Islam, Abbas Z. Kouzani, M. A Parvez Mahmud
Robust Extended H∞ Control Strategy Using Linear Matrix Inequality Approach For Islanded Microgrid, Maniza Armin, Mizanur Rahman, Md Mukidur Rahman, Subrata K. Sarker, Sajal Das, Md Rabiul Islam, Abbas Z. Kouzani, M. A Parvez Mahmud
Faculty of Engineering and Information Sciences - Papers: Part B
This paper presents the design of an extended parameterisations of H∞ controller for off grid operation of a microgrid. The microgrid consists of distributed generation units, filters and local loads. The filters are used to achieve accurate sinusoidal output voltage. However, loads which are connected to the microgrid are parametrically uncertain. Hence, it undergoes with unknown loads uncertainties. These unknown loads may create unknown loads harmonics, non-linearities which may reduce the voltage and current profile of the microgrid. As a result, the sudden rise and fall of voltage current profile damages the domestic and commercial loads. The proposed controller provides …
On Masking And Releasing Smart Meter Data At Micro-Level: The Multiplicative Noise Approach, John Brackenbury, P. Y. O'Shaughnessy, Yan-Xia Lin
On Masking And Releasing Smart Meter Data At Micro-Level: The Multiplicative Noise Approach, John Brackenbury, P. Y. O'Shaughnessy, Yan-Xia Lin
Faculty of Engineering and Information Sciences - Papers: Part B
Smart meter electricity data presents privacy risks when malicious agents gain insights of private information, including residents’ lifestyle and daily habits. When allowing access to record-level data, we apply the multiplicative noise method to mask individual smart meter data, which simultaneously aims to minimise disclosure of a dwelling’s consumption signal to any third party and to enable accurate estimation of the sum of a cluster of households. Three testing criteria are introduced to measure the performance of multiplicative noise masking approach relevant to the smart meter data. We propose a novel ‘Twin Uniform’ noise distribution and derive relevant theoretical results. …
Towards An Assessment Framework Of Reuse: A Knowledge Level Analysis Approach, Ghassan Beydoun, Achim Hoffmann, Rafael Valencia-Garcia, Jun Shen, Asifqumer Gill
Towards An Assessment Framework Of Reuse: A Knowledge Level Analysis Approach, Ghassan Beydoun, Achim Hoffmann, Rafael Valencia-Garcia, Jun Shen, Asifqumer Gill
Faculty of Engineering and Information Sciences - Papers: Part B
The process of assessing the suitability of reuse of a software component is complex. Indeed, software systems are typically developed as an assembly of existing components. The complexity of the assessment process is due to lack of clarity on how to compare the cost of adaptation of an existing component versus the cost of developing it from scratch. Indeed, often pursuit of reuse can lead to excessive rework and adaptation, or developing suites of components that often get neglected. This paper is an important step towards modelling the complex reuse assessment process. To assess the success factors that can underpin …
A Numerical Approach To Design The Kretschmann Configuration Based Refractive Index Graphene-Mos2 Hybrid Layers With Tio2-Sio2 Nano For Formalin Detection, Md. Biplob Hossain, Tamanna Tasnim, Lway Abdulrazak, Md Masud Rana, Md Rabiul Islam
A Numerical Approach To Design The Kretschmann Configuration Based Refractive Index Graphene-Mos2 Hybrid Layers With Tio2-Sio2 Nano For Formalin Detection, Md. Biplob Hossain, Tamanna Tasnim, Lway Abdulrazak, Md Masud Rana, Md Rabiul Islam
Faculty of Engineering and Information Sciences - Papers: Part B
In this paper, a Kretschmann configuration based surface plasmon resonance (SPR) sensor is numerically designed using graphene-MoS2 hybrid structure TiO2-SiO2 nano particles for formalin detection. In this design, the observations of SPR angle versus minimum reflectance and SPR frequency (FSPR) versus maximum transmittance (Tmax) are considered. The chitosan is used as probe legend to perform reaction with the formalin (40% formaldehyde) which acts as target legend. In this paper, both graphene and MoS2 are used as biomolecular acknowledgment element (BAE) and TiO2 as well as SiO2 bilayers is used to improve the sensitivity of the sensor. The numerical results show …
Mixed Convection Of Non-Newtonian Nanofluid In An H-Shaped Cavity With Cooler And Heater Cylinders Filled By A Porous Material: Two Phase Approach, Zhixiong Li, Pouya Barnoon, Davood Toghraie, Reza Balali Dehkordi, Masoud Afrand
Mixed Convection Of Non-Newtonian Nanofluid In An H-Shaped Cavity With Cooler And Heater Cylinders Filled By A Porous Material: Two Phase Approach, Zhixiong Li, Pouya Barnoon, Davood Toghraie, Reza Balali Dehkordi, Masoud Afrand
Faculty of Engineering and Information Sciences - Papers: Part B
In the present problem, two-phase mixed convection of a non-Newtonian nanofluid in a porous H-shaped cavity is studied. Inside the enclosure there are four rotating cylinders, using the Boussinesq approximation, mixed convection is created. Nanofluid includes H2O + 0.5% CMC and copper oxide nanoparticles. The mixture model was used to model physical phenomena. Different aspect ratios were used in order to achieve the best heat transfer rate. The Darcy and Richardson numbers ranges are 10−4 ≤ Da ≤ 10−2 and 1 ≤ Ri ≤ 100 respectively. Also, the aspect ratio and dimensionless angular velocities of cylinders ranges are 1.4 ≤ …
Multi-Objective Search-Based Approach To Estimate Issue Resolution Time, Wisam Al-Zubaidi, Hoa K. Dam, Aditya K. Ghose, Xiaodong Li
Multi-Objective Search-Based Approach To Estimate Issue Resolution Time, Wisam Al-Zubaidi, Hoa K. Dam, Aditya K. Ghose, Xiaodong Li
Faculty of Engineering and Information Sciences - Papers: Part B
Background: Resolving issues is central to modern agile software development where a software is developed and evolved incrementally through series of issue resolutions. An issue could represent a requirement for a new functionality, a report of a software bug or a description of a project task. Aims: Knowing how long an issue will be resolved is thus important to different stakeholders including end-users, bug reporters, bug triagers, developers and managers. This paper aims to propose a multi-objective search-based approach to estimate the time required for resolving an issue. Methods: Using genetic programming (a meta-heuristic optimization method), we iteratively generate candidate …
A Qr Code Watermarking Approach Based On The Dwt-Dct Technique, Yang-Wai Chow, Willy Susilo, Joseph Tonien, Wei Zong
A Qr Code Watermarking Approach Based On The Dwt-Dct Technique, Yang-Wai Chow, Willy Susilo, Joseph Tonien, Wei Zong
Faculty of Engineering and Information Sciences - Papers: Part B
The rapid growth in Internet and communication technology has facilitated an escalation in the exchange of digital multimedia content. This has resulted in an increase in copyright infringement, which has led to a greater demand for more robust copyright protection mechanisms. Digital watermarking is a means of detecting ownership and illegal use of digital products. This paper presents an approach to watermarking images by embedding QR code information in a digital image.
A Consumer-Oriented Decision-Making Approach For Selecting The Cloud Storage Service: From Paprika Perspective, Salim Al Isma'ili, Mengxiang Li, Jun Shen, Qiang He
A Consumer-Oriented Decision-Making Approach For Selecting The Cloud Storage Service: From Paprika Perspective, Salim Al Isma'ili, Mengxiang Li, Jun Shen, Qiang He
Faculty of Engineering and Information Sciences - Papers: Part B
In recent years there is a growth in the number of companies that offers cloud storage solutions. From user’s perspectives, it is becoming a challenging task to choose which cloud storage to use and from whom, based on user’s needs. In this context, no framework can evaluate the decision criteria for selection of cloud storage services. This paper proposes a solution to this problem by identifying the cloud storage criteria and introduces the PAPRIKA approach for measuring the criteria of cloud storage based on client’s preference. This work demonstrated the applicability of the framework (decision model) by testing it with …
From Bim (Building Information Modelling) To Bem (Building Energy Modelling): A Collaborative Approach, Emma Elizabeth Heffernan, Mohammed I. Sohel, Scott F. Beazley, Timothy J. Mccarthy
From Bim (Building Information Modelling) To Bem (Building Energy Modelling): A Collaborative Approach, Emma Elizabeth Heffernan, Mohammed I. Sohel, Scott F. Beazley, Timothy J. Mccarthy
Faculty of Engineering and Information Sciences - Papers: Part B
The use of simulation to predict building energy performance has been shown to have significant benefits in terms of reducing energy consumption and greenhouse gas emissions. However, in terms of implementation, the process can be disjointed and messy, with a lack of integration between architects and engineers. For the process of creating a building energy simulation to be more efficient, a seamless transition from an architectural design to an energy model is required. This paper highlights some of the practical issues manifest in the process of data exchange for energy analysis. It presents a proposed workflow for the exchange of …