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Articles 27871 - 27900 of 28852
Full-Text Articles in Entire DC Network
Perfluoroalkyl Substances In The Yangtze River: Changing Exposure And Its Implications After Operation Of The Three Gorges Dam, J Li, Yue Gao, Nan Xu, B Li, Rui An, Weiling Sun, Alistair G.L. Borthwick, Jinren Ni
Perfluoroalkyl Substances In The Yangtze River: Changing Exposure And Its Implications After Operation Of The Three Gorges Dam, J Li, Yue Gao, Nan Xu, B Li, Rui An, Weiling Sun, Alistair G.L. Borthwick, Jinren Ni
School of Engineering, Computing and Mathematics
No abstract provided.
Erosion-Deposition Patterns And Depo-Center Movements In Branching Channels At The Near-Estuary Reach Of The Yangtze River, Boyuan Zhu, Jinyun Deng, Jinwu Tang, Wenjun Yu, Alistair G.L. Borthwick, Yuanfang Chai, Zhaohua Sun, Yitian Li
Erosion-Deposition Patterns And Depo-Center Movements In Branching Channels At The Near-Estuary Reach Of The Yangtze River, Boyuan Zhu, Jinyun Deng, Jinwu Tang, Wenjun Yu, Alistair G.L. Borthwick, Yuanfang Chai, Zhaohua Sun, Yitian Li
School of Engineering, Computing and Mathematics
No abstract provided.
Determination, Occurrence, And Treatment Of Saccharin In Water: A Review, Lina Pang, Alistair G.L. Borthwick, Efthalia Chatzisymeon
Determination, Occurrence, And Treatment Of Saccharin In Water: A Review, Lina Pang, Alistair G.L. Borthwick, Efthalia Chatzisymeon
School of Engineering, Computing and Mathematics
No abstract provided.
Piston-Driven Numerical Wave Tank Based On Weno Solver Of Well-Balanced Shallow Water Equations, Jaeyoung Jung, Jin Hwan Hwang, Alistair G.L. Borthwick
Piston-Driven Numerical Wave Tank Based On Weno Solver Of Well-Balanced Shallow Water Equations, Jaeyoung Jung, Jin Hwan Hwang, Alistair G.L. Borthwick
School of Engineering, Computing and Mathematics
No abstract provided.
Flow And Magnetic Structures In A Kinematic Abc-Dynamo, Tao Zhang, Zhi Liang Lin, Chen Yang Huang, Alistair G.L. Borthwick
Flow And Magnetic Structures In A Kinematic Abc-Dynamo, Tao Zhang, Zhi Liang Lin, Chen Yang Huang, Alistair G.L. Borthwick
School of Engineering, Computing and Mathematics
No abstract provided.
Incompressible Sph Simulation Of Flow Past Horizontal Cylinder Between Plane Wall And Free Surface, Burniadi Moballa, Ming Jyh Chern, A. G.L. Borthwick
Incompressible Sph Simulation Of Flow Past Horizontal Cylinder Between Plane Wall And Free Surface, Burniadi Moballa, Ming Jyh Chern, A. G.L. Borthwick
School of Engineering, Computing and Mathematics
No abstract provided.
Vanadium Contamination And Associated Health Risk Of Farmland Soil Near Smelters Throughout China, Yi'na Li, Baogang Zhang, Ziqi Liu, Song Wang, Jun Yao, Alistair G.L. Borthwick
Vanadium Contamination And Associated Health Risk Of Farmland Soil Near Smelters Throughout China, Yi'na Li, Baogang Zhang, Ziqi Liu, Song Wang, Jun Yao, Alistair G.L. Borthwick
School of Engineering, Computing and Mathematics
No abstract provided.
Synthesis And Manufacture Of High Performance Fa-Ggbs-Hmns Based Geopolymer Concrete, Aissa Bouaissi
Synthesis And Manufacture Of High Performance Fa-Ggbs-Hmns Based Geopolymer Concrete, Aissa Bouaissi
School of Engineering, Computing and Mathematics Theses
Geopolymer has received great attention in recent years as a new material that could replace Ordinary Portland cement (OPC) for producing concrete. Geopolymer uses the raw materials rich in aluminium and silicon, which are activated by alkaline solutions to formulate the binder. It has been proven that the geopolymer could be a material capable of providing high-quality properties and having less environmental impact. This research project aims to investigate the capability for producing a geopolymer concrete (GPC) mainly based on the combination of various by-product materials (fly ash, (FA), ground granulated blast-furnace slag (GGBS) and high-magnesium nickel slag (HMNS)) at …
Automotive Cognitive Access: Towards Customized Vehicular Communication System, Muhammad Ahmad Dawood
Automotive Cognitive Access: Towards Customized Vehicular Communication System, Muhammad Ahmad Dawood
School of Engineering, Computing and Mathematics Theses
The evolution of Software Defined Networking (SDN) and Virtualization of mobile Network Functions (NFV) have enabled the new ways of managing mobile access systems and are seen as a major technological foundation of the Fifth Generation (5G) of mobile networks. With the appearance of 5G specifications, the mobile system architecture has the transition from a network of entities to a network of functions. This paradigm shift led to new possibilities and challenges. Existing mobile communication systems rely on closed and inflexible hardware-based architectures both at the access and core network. It implies significant challenges in implementing new techniques to maximize …
Intention Recognition Of Elbow Joint Based On Semg Using Adaptive Fuzzy Neural Network, Y Liu, Chunxu Li, Zhaowei Teng, K Liu, Gang Wang, Zhongbo Sun
Intention Recognition Of Elbow Joint Based On Semg Using Adaptive Fuzzy Neural Network, Y Liu, Chunxu Li, Zhaowei Teng, K Liu, Gang Wang, Zhongbo Sun
School of Engineering, Computing and Mathematics
No abstract provided.
A Panorama Of Positivity. Ii: Fixed Dimension, Alexander Belton, Dominique Guillot, Apoorva Khare, Mihai Putinar
A Panorama Of Positivity. Ii: Fixed Dimension, Alexander Belton, Dominique Guillot, Apoorva Khare, Mihai Putinar
School of Engineering, Computing and Mathematics
No abstract provided.
Lattice Boltzmann Method For Multiphase Flows With High Density Ratios, Norjan Jumaa
Lattice Boltzmann Method For Multiphase Flows With High Density Ratios, Norjan Jumaa
School of Engineering, Computing and Mathematics Theses
This thesis describes the Lattice Boltzmann Method (LBM) and its application to single and multiphase flows. The LBM algorithm using Single Relaxation Time (SRT) and Multi Relaxation Time (MRT) models are studied. In particular, a new MRT multiphase model is developed, based upon the SRT multiphase model of Banari et al. (2014). A unified LBM approach is used with separate formulations for the phase field, the pressureless Naiver-Stokes (NS) equations and the correction of the pressureless velocity field by solving a Poisson equation. To validate the current model, computations for various Reynolds numbers (Re) were performed to simulate 2D lid …
Profiling And Identification Of Web Applications In Computer Network, Hussein Oudah
Profiling And Identification Of Web Applications In Computer Network, Hussein Oudah
School of Engineering, Computing and Mathematics Theses
Characterising network traffic is a critical step for detecting network intrusion or misuse. The traditional way to identify the application associated with a set of traffic flows uses port number and DPI (Deep Packet Inspection), but it is affected by the use of dynamic ports and encryption. The research community proposed models for traffic classification that determined the most important requirements and recommendations for a successful approach. The suggested alternatives could be categorised into four techniques: port-based, packet payload based, host behavioural, and statistical-based. The traditional way to identifying traffic flows typically focuses on using IANA assigned port numbers and …
A Privacy-Enhancing Framework For Mobile Devices, Aziz Alshehri
A Privacy-Enhancing Framework For Mobile Devices, Aziz Alshehri
School of Engineering, Computing and Mathematics Theses
The use of mobile devices in daily life has increased exponentially, leading to them occupying many essential aspects of people’s lives, such as replacing credit cards to make payments, and for various forms of entertainment and social activities. Therefore, users have installed an enormous number of apps. These apps can collect and share a large amount of data, such as location data, images, videos, health data, and call logs, which are highly valuable and sensitive for users. Consequently, the use of apps raises a variety of privacy concerns regarding which app is allowed to access and share; to what degree …
Fall And Activity Detection Framework On A Robotic Platform For Older Person Care, Frederico Belmonte Klein
Fall And Activity Detection Framework On A Robotic Platform For Older Person Care, Frederico Belmonte Klein
School of Engineering, Computing and Mathematics Theses
This thesis describes the classification human activity for the purpose of detecting falls, later extended to multiple activities. This was done with the final intention of implementing a robotic companion for older persons that can provide a certain level of automated care in case of some sort of emergency. The complexity of this work, combined with restrictions of the robot, motivated a creation of an infrastructure abstraction to allow deferred (decentralized) processing. The initial work was done by implementing classifiers that work use pre-processed skeleton data extracted from RGBD sensors and implements some steps in order to make classification robust …
Building Cyber Defense Training Capacity, Erik Moore
Building Cyber Defense Training Capacity, Erik Moore
School of Engineering, Computing and Mathematics Theses
As society advances in terms of information technology, the dependency on cyber secure systems increases. Likewise, the need to enhance both the quality and relevance of education, training, and professional development for cybersecurity defenders increases proportionately. Without a continued supply of capable cyber defenders that can come to the challenge well-prepared and continuously advance their skills, the reliability and thus the value of information technology systems will be compromised to the point that new information-driven societal structures in commerce, banking, education, infrastructure, and others across the globe would be put be at risk.The body of research presented here provides a …
Lattice Boltzmann Method For 2d And 3d Flows In Channels And Ducts With Slip And No-Slip Walls, Zainab Ali Bu Sinnah
Lattice Boltzmann Method For 2d And 3d Flows In Channels And Ducts With Slip And No-Slip Walls, Zainab Ali Bu Sinnah
School of Engineering, Computing and Mathematics Theses
The aim of this thesis is to study the Lattice Boltzmann method for fluid dynamics by using moment based boundary condition to implement no-slip and partial slip boundary conditions in two and three dimensions. The main topics are the theory of the Lattice Boltzmann method, an examination of boundary conditions and the application of the Lattice Boltzmann method to a variety of fluid flows. We developed and successfully implemented combinations of no-slip, Navier-slip, pressure boundaries and inlet conditions in two and three dimensions using moment-based boundary conditions including careful treatments of conditions along edges and at corners. A useful advantage …
A Novel Framework For Improving Cyber Security Management And Awareness For Home Users, Fayez Ghazai S Alotaibi
A Novel Framework For Improving Cyber Security Management And Awareness For Home Users, Fayez Ghazai S Alotaibi
School of Engineering, Computing and Mathematics Theses
A wide and increasing range of different technologies, devices, platforms, applications and services are being used every day by home users. In parallel, home users are also experiencing a range of different online threats and attacks. Indeed, home users are increasingly being targeted as they lack the knowledge and awareness about potential threats and how to protect themselves. The increase in technologies and platforms also increases the burden upon a user to understand how to apply security across the differing technologies, operating systems and applications. This results in managing the security across their technology portfolio increasingly more troublesome and time-consuming. …
Qoe-Centric Control And Management Of Multimedia Services In Software Defined And Virtualized Networks, Alcardo Alex Barakabitze
Qoe-Centric Control And Management Of Multimedia Services In Software Defined And Virtualized Networks, Alcardo Alex Barakabitze
School of Engineering, Computing and Mathematics Theses
Multimedia services consumption has increased tremendously since the deployment of 4G/LTE networks. Mobile video services (e.g., YouTube and Mobile TV) on smart devices are expected to continue to grow with the emergence and evolution of future networks such as 5G. The end user’s demand for services with better quality from service providers has triggered a trend towards Quality of Experience (QoE) - centric network management through efficient utilization of network resources. However, existing network technologies are either unable to adapt to diverse changing network conditions or limited in available resources. This has posed challenges to service providers for provisioning of …
Activity-Based User Authentication Using Smartwatches, Neamah Hasan Al-Naffakh
Activity-Based User Authentication Using Smartwatches, Neamah Hasan Al-Naffakh
School of Engineering, Computing and Mathematics Theses
Smartwatches, which contain an accelerometer and gyroscope, have recently been used to implement gait and gesture- based biometrics; however, the prior studies have long-established drawbacks. For example, data for both training and evaluation was captured from single sessions (which is not realistic and can lead to overly optimistic performance results), and in cases when the multi-day scenario was considered, the evaluation was often either done improperly or the results are very poor (i.e., greater than 20% of EER). Moreover, limited activities were considered (i.e., gait or gestures), and data captured within a controlled environment which tends to be far less …
Honeypot For Wireless Sensor Networks, Jürgen Markert
Honeypot For Wireless Sensor Networks, Jürgen Markert
School of Engineering, Computing and Mathematics Theses
People have understood that computer systems need safeguarding and require knowledge of security principles for their protection. While this has led to solutions for system components such as malware-protection, firewalls and intrusion detection systems, the ubiquitous usage of tiny microcomputers appeared at the same time. A new interconnectivity is on the rise in our lives. Things become “smart” and increasingly build new networks of devices. In this context the wireless sensor networks here interact with users and also, vice versa as well; unprivileged users able to interact with the wireless sensor network may harm the privileged user as a result. …
Smoothed Particle Hydrodynamics Simulations Of Model-Scale Tsunami Waves, Ruaa Wana
Smoothed Particle Hydrodynamics Simulations Of Model-Scale Tsunami Waves, Ruaa Wana
School of Engineering, Computing and Mathematics Theses
Smoothed Particle Hydrodynamics (SPH) is a meshfree, Lagrangian, particle method. It was first invented to solve astrophysical problems, but has since been developed and used to model a wide variety of fluid flows. Also, it is particularly well suited to simulating flow problems that have large deformations or contain free surfaces. This thesis describes in detail the SPH method and its application to single phase models of flows. Fortran code has been written to implement the method. To validate and establish SPH parameters to use, the SPH method has been used in different flow simulations, in particular, lid-driven cavity flow, …
Network-Based Management For Optimising Video Delivery, Ali Edan Taher Alissa
Network-Based Management For Optimising Video Delivery, Ali Edan Taher Alissa
School of Engineering, Computing and Mathematics Theses
The past decade has witnessed a massive increase in Internet video traffic. The Cisco Visual Forecast index indicates that, by 2022, (79%) of the world's mobile data traffic will be video traffic. In order to increase the video streaming market revenue, service providers need to provide services to the end-users characterised by high Quality of Experience (QoE). However, delivering good-quality video services is a very challenging task due to the stringent constraints related to bandwidth and latency requirements in video streaming. Among the available streaming services, HTTP adaptive streaming (HAS) has become the de facto standard for multimedia delivery over …
Proactive Biometric-Enabled Forensic Imprinting System, A Alruban
Proactive Biometric-Enabled Forensic Imprinting System, A Alruban
School of Engineering, Computing and Mathematics Theses
Insider threats are a significant security issue. The last decade has witnessed countless instances of data loss and exposure in which leaked data have become publicly available and easily accessible. Losing or disclosing sensitive data or confidential information may cause substantial financial and reputational damage to a company. Therefore, preventing or responding to such incidents has become a challenging task. Whilst more recent research has focused explicitly on the problem of insider misuse, it has tended to concentrate on the information itself—either through its protection or approaches to detecting leakage. Although digital forensics has become a de facto standard in …
Author Verification Of Electronic Messaging Systems, Abdulaziz Altamimi
Author Verification Of Electronic Messaging Systems, Abdulaziz Altamimi
School of Engineering, Computing and Mathematics Theses
Messaging systems have become a hugely popular new paradigm for sending and delivering text messages; however, online messaging platforms have also become an ideal place for criminals due to their anonymity, ease of use and low cost. Therefore, the ability to verify the identity of individuals involved in criminal activity is becoming increasingly important. The majority of research in this area has focused on traditional authorship problems that deal with single-domain datasets and large bodies of text. Few research studies have sought to explore multi-platform author verification as a possible solution to problems around forensics and security. Therefore, this research …
Validation Of A Cfd-Based Numerical Wave Tank Model For The Power Production Assessment Of The Wavestar Ocean Wave Energy Converter, Christian Windt, Josh Davidson, Edward J. Ransley, Deborah Greaves, Morten Jakobsen, Morten Kramer, John V. Ringwood
Validation Of A Cfd-Based Numerical Wave Tank Model For The Power Production Assessment Of The Wavestar Ocean Wave Energy Converter, Christian Windt, Josh Davidson, Edward J. Ransley, Deborah Greaves, Morten Jakobsen, Morten Kramer, John V. Ringwood
School of Engineering, Computing and Mathematics
No abstract provided.
Zechipc: Time Series Interpolation Method Based On Lebesgue Sampling, Luis Miralles-Pechuán, Muhammad Atif Qureshi, Matthieu Bellucci, Brian Mac Namee
Zechipc: Time Series Interpolation Method Based On Lebesgue Sampling, Luis Miralles-Pechuán, Muhammad Atif Qureshi, Matthieu Bellucci, Brian Mac Namee
Books/Book Chapters
In this paper, we present an interpolation method based on Lebesgue sampling that could help to develop systems based time series more efficiently. Our methods can transmit times series, frequently used in health monitoring, with the same level of accuracy but using much fewer data. Our method is based in Lebesgue sampling, which collects information depending on the values of the signal (e.g. the signal output is sampled when it crosses specific limits). Lebesgue sampling contains additional information about the shape of the signal in-between two sampled points. Using this information would allow generating an interpolated signal closer to the …
Towards A Context-Aware Knowledge Model For Smart Service Systems, Thang Le Dinh, Thanh Thoa Pham Thi, Cuong Pham-Nguyen, Hoai Nam Le Nguyen
Towards A Context-Aware Knowledge Model For Smart Service Systems, Thang Le Dinh, Thanh Thoa Pham Thi, Cuong Pham-Nguyen, Hoai Nam Le Nguyen
Conference papers
The advancement of the Internet of things, big data, and mobile computing leads to the need for smart services that enable the context awareness and the adaptability to their changing contexts. Today, designing a smart service system is a complex task due to the lack of an adequate model support in awareness and pervasive environment. In this paper, we present a context-aware knowledge model for smart service systems that organizes the domain and context-aware knowledge into knowledge components based on the three levels of services: Services, Service system and Network of service systems. The context-aware knowledge model for smart service …
Covid -19 And The Need For Robust Risk Control Strategies: Can Ich-Q9 Help?, Umit Kartoglu, Kevin O'Donnell, James Vesper
Covid -19 And The Need For Robust Risk Control Strategies: Can Ich-Q9 Help?, Umit Kartoglu, Kevin O'Donnell, James Vesper
Level 3
The COVID-19 pandemic requires robust risk control strategies; these should be multi-layered, science-based and subjected to effectiveness checks and formal reviews, to identify any unintended consequences. They should be supported by communications informed by an understanding of biases and risk perception. While developing such strategies for COVID-19 is difficult, given the scale of the problem and the diversity of stakeholders, the approach to Quality Risk Management (QRM) used by the pharmaceutical industry provides governments and public health officials with a ready-made framework to arrive at such control strategies. This approach is set out in the ICH Guideline on Quality Risk …
Understanding The Concept Of Formality In Quality Risk Management, Kevin O'Donnell, Deirdre Tobin, Stephanie Butler, Ghada Haddad, Donal Kelleher
Understanding The Concept Of Formality In Quality Risk Management, Kevin O'Donnell, Deirdre Tobin, Stephanie Butler, Ghada Haddad, Donal Kelleher
Level 3
Formality in Quality Risk Management (QRM) is an interesting concept. What makes a QRM activity ‘formal’ and what makes one ‘informal’? A simplistic viewpoint might be that formal is when a QRM tool is used to manage risks, and informal is when no such tool is used. But is it that simple? And are there different degrees of formality in QRM - is it a spectrum, or is it a binary concept? These questions are explored in this paper. Since the introduction of ICH Q9 in 2005, there have been discussions in the pharmaceutical industry and between regulators regarding the …