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Articles 1891 - 1920 of 4606
Full-Text Articles in Engineering
Can Phishing Education Enable Users To Recognize Phishing Attacks?, Hanaa Alghamdi
Can Phishing Education Enable Users To Recognize Phishing Attacks?, Hanaa Alghamdi
Dissertations
Phishing attacks have increased rapidly and caused many drastic damages and losses for internet users‟ .The purpose of this research is to investigate on effectiveness of phishing education and training to help users identify different forms of phishing threats. The study has been conducted through developing a phishing quiz mobile application which includes four kinds of phishing threats. It tested the ability of users to recognize spoofed emails, SMS phishing (SMshing), scam phone calls (Vishing), and phishing through social media networks. A comprehensive literature review was discussed to investigate on the research area, understand the research problem, support the proposed …
Evaluating The Effectiveness Of The Gestalt Principles Of Perceptual Observation For Virtual Reality User Interface Design, William Macnamara
Evaluating The Effectiveness Of The Gestalt Principles Of Perceptual Observation For Virtual Reality User Interface Design, William Macnamara
Dissertations
There is a lot of interest and excitement surrounding the areas of Virtual Reality and Head-Mounted Displays with the recent releases of devices such as the Oculus Rift, Sony PSVR and the HTC Vive. While much of the focus for these devices has been related to sectors of the entertainment industries, namely the cinema and video game industries, there are many more practical applications for these technologies, with potential benefits in educational, training/simulation, therapeutic and modelling/design software. Developing a set of reliable guidelines for Virtual Reality User Interface Design could play a crucial role in whether the medium successfully integrates …
Bacterial Foraging Optimized Statcom For Stability Assessment In Power System, Shiba Paital, Prakash Ray, Asit Mohanty, Sandipan Patra, Harishchandra Dubey
Bacterial Foraging Optimized Statcom For Stability Assessment In Power System, Shiba Paital, Prakash Ray, Asit Mohanty, Sandipan Patra, Harishchandra Dubey
Conference papers
This paper presents a study of improvement in stability in a single machine connected to infinite bus (SMIB) power system by using static compensator (STATCOM). The gains of Proportional-Integral-Derivative (PID) controller in STATCOM are being optimized by heuristic technique based on Particle swarm optimization (PSO). Further, Bacterial Foraging Optimization (BFO) as an alternative heuristic method is also applied to select optimal gains of PID controller. The performance of STATCOM with the above soft-computing techniques are studied and compared with the conventional PID controller under various scenarios. The simulation results are accompanied with performance indices based quantitative analysis. The analysis clearly …
Design Of An Underwater Cable Fault Location Device To Precisely Locate Submarine Cable Faults, Glenn O'Reilly, Joseph Kearney, John Lawler, Tom Looby
Design Of An Underwater Cable Fault Location Device To Precisely Locate Submarine Cable Faults, Glenn O'Reilly, Joseph Kearney, John Lawler, Tom Looby
Conference papers
The objective of the paper is to develop a robust and reliable method to pinpoint submarine cable faults. Submarine cables have existed for over 100 years but there is still no single method used to determine the precise location of a submarine cable fault. The various methods used to pinpoint cable faults, both submarine and non-submarine were researched and investigated to produce a method which would accurately pinpoint submarine cable faults. From this, the idea of a hydrophone string was derived from a non-submarine pinpointing method currently used. The hydrophone string was tested and it accurately pinpointed the location of …
Simultaneous Measurement Of Both Magnetic Field Strength And Temperature With A Microfiber Coupler Based Fiber Laser Sensor, Fangfang Wei, Dejun Liu, Yuliya Semenova, Gerald Farrell, Arun Mallik
Simultaneous Measurement Of Both Magnetic Field Strength And Temperature With A Microfiber Coupler Based Fiber Laser Sensor, Fangfang Wei, Dejun Liu, Yuliya Semenova, Gerald Farrell, Arun Mallik
Conference papers
In this paper we propose and investigate a novel magnetic field sensor based of a ring erbium-doped fiber laser combined with a fiber Bragg grating and a Sagnac loop containing a microfiber coupler and magnetic fluid. In addition to the magnetic field sensing capability, the proposed structure can simultaneously provide temperature information. Thanks to the dual-ring structure of the MFC-Sagnac loop and the FBG-assisted resonant cavity, the output has two distinct laser peaks. Experimentally demonstrated magnetic field sensitivity of one of the laser peaks is 15 pm/mT in the magnetic field range from 0 to 100 mT. The spectral position …
Professional Roles And Employability Of Future Engineers, Kevin Gaughan, S. Craps, M. Pinxten, G. Saunders, M. Leandro-Cruz
Professional Roles And Employability Of Future Engineers, Kevin Gaughan, S. Craps, M. Pinxten, G. Saunders, M. Leandro-Cruz
Conference papers
Although there is high degree of agreement on the importance of transversal skills for engineers, employers observe a significant gap between expectations and reality. This paper discusses the need for the development of a framework of professional roles for future engineers and the implementation of dedicated skills education in engineering curricula to train students for this role. Based on an extensive literature study, an overview is given of previous research on this topic. The paper also outlines the next steps that will be taken by the authors as part of a European project PREFER to develop and implement these roles …
Forecasting Peak-Day Consumption For Year-Ahead Management Of Natural Gas Networks, Ronan Oliver, Aidan Duffy, Bernard Enright, Rodger O'Connor
Forecasting Peak-Day Consumption For Year-Ahead Management Of Natural Gas Networks, Ronan Oliver, Aidan Duffy, Bernard Enright, Rodger O'Connor
Articles
Security of supply is at the forefront of energy policy in the EU and elsewhere. This paper develops a methodology to forecast peak-day gas consumption for the consideration of gas transmission system operators. It is developed for the domestic and small-to-medium enterprise (SME) gas market, based on a review of current practice. From this assessment, a climate-adjusted network degree day (NDDCA) variable is developed to estimate the weather-dependent gas consumption of such markets. We show that solar radiation significantly affects gas consumption and should be considered in consumption models. The study also quantifies the difference in capacity required under alternative …
Optimising The Performance Of Cement-Based Batteries, Aimee Byrne, Shane Barry, Niall Holmes Dr., Brian Norton
Optimising The Performance Of Cement-Based Batteries, Aimee Byrne, Shane Barry, Niall Holmes Dr., Brian Norton
Articles
The development of a battery using different cement-based electrolytes to provide a low but potentially sustainable source of electricity is described. The current, voltage, and lifespan of batteries produced using different electrolyte additives, copper plate cathodes, and (usually) aluminium plate anodes were compared to identify the optimum design, components, and proportions to increase power output and longevity. Parameters examined include water/cement ratio, anode to cathode surface area ratio, electrode material, electrode spacing, and the effect of sand, aggregate, salts, carbon black, silica fume, and sodium silicate on the electrolyte. The results indicate that the greatest and longest lasting power can …
The Compartmented Alginate Fibres Optimisation For Bitumen Rejuvenator Encapsulation, Amir Tabakovic, Dirk Braak, Mark Van Gerwen, Oguzhan Copuroglu, Wouter Post, Santiago J. Garcia, Erik Schlangen
The Compartmented Alginate Fibres Optimisation For Bitumen Rejuvenator Encapsulation, Amir Tabakovic, Dirk Braak, Mark Van Gerwen, Oguzhan Copuroglu, Wouter Post, Santiago J. Garcia, Erik Schlangen
Research and Innovation - Articles
This article presents development of a novel self-healing technology for asphalt pavements, where asphalt binder rejuvenator is encapsulated within the compartmented alginate fibres. The key objective of the study was to optimise the compartmented alginate fibre design, i.e., maximising amount of rejuvenator encapsulated within the fibre. The results demonstrate that optimum rejuvenator content in the alginate fibre is of 70:30 rejuvenator/alginate ratio. The fibres are of sufficient thermal and mechanical strength to survive harsh asphalt mixing and compaction processes. Furthermore, results illustrate that zeer open asfalt beton (ZOAB) asphalt mix containing 5% of 70:30 rejuvenator/alginate ratio compartmented alginate fibres has …
A Transfer Matrix Approach To Aid In The Design And Optimization Of Hybrid Advanced Passive Structures For Enhancing Photovoltaic Efficiency, James Walshe, Sarah Mccormack, Hind Ahmed, John Doran
A Transfer Matrix Approach To Aid In The Design And Optimization Of Hybrid Advanced Passive Structures For Enhancing Photovoltaic Efficiency, James Walshe, Sarah Mccormack, Hind Ahmed, John Doran
Conference Papers
The addition of a luminescent down-shifting (LDS) layer directly onto a photovoltaic (PV) cell introduces additional loss mechanisms within the system. The combination of non-ideal photo-luminescent materials encapsulated within a limited range of viable host materials, with the increased reflection losses arising from the newly created interface represent losses which must be overcome for LDS to offer an enhancement to the underlying cells efficiency. Exploiting the interaction between the highly enhanced electric fields established close to a metal nanoparticles (MNP’s) surface is one route aimed at mitigating the poor optical properties of the luminophore-host combinations available. Alternative approaches, aimed at …
Linking Geospatial Engineering Into Collaborative Multidisciplinary Bim Projects - An Educational Perspective, Avril Behan, Helen Murray, Jonathan Argue, Ronan Hogan, Audrey Martin, Pat O'Sullivan, Robert Moore, Malachy Mathews
Linking Geospatial Engineering Into Collaborative Multidisciplinary Bim Projects - An Educational Perspective, Avril Behan, Helen Murray, Jonathan Argue, Ronan Hogan, Audrey Martin, Pat O'Sullivan, Robert Moore, Malachy Mathews
Conference papers
This paper describes the background to and execution of a postgraduate project undertaken by students on DIT's MSc in Geospatial Engineering (GeoEng) in support of a project on level 2 BIM being undertaken by students on the MSc in applied Building Information Modelling & Management (aBIMM) around the retrofit of and new build extension to the Grangegorman Clock Tower Building. In support of this requirement, an external and internal survey of the existing structure and its surrounding topography was required. The aBIMM students and staff acted as the Design Team who subcontracted the Geo Eng group who were organised into …
Passive Photonic Integrated Ratiometric Wavelength Monitor With Resolution Better Than 15pm, Pengfei Wang, Agus Muhamad Hatta, Haoyu Zhao, Wenlei Yang, Jing Ren, Yaxian Fan, Gerald Farrell, Gilberto Bramilla
Passive Photonic Integrated Ratiometric Wavelength Monitor With Resolution Better Than 15pm, Pengfei Wang, Agus Muhamad Hatta, Haoyu Zhao, Wenlei Yang, Jing Ren, Yaxian Fan, Gerald Farrell, Gilberto Bramilla
Articles
This paper presents a compact and low-loss photonic integrated device consisting of a Y-branch and a pair of multimode interferometers (MMI) for a ratiometric wavelength monitoring around 1550 nm on silicon-on-insulator (SOI) technique. Two MMIs are designed in terms of width and length to achieve overlapping but opposite slope spectral responses used as two edge filters over a wavelength measurement range from 1500 nm to 1600 nm. The developed integrated photonic ratiometric structure demonstrates a suitable discrimination range for a high-speed passive wavelength measurement, with a high resolution better than 15 pm over a 100 nm wavelength range.
A Data Centre Air Flow Model For Predicting Computer Server Inlet Temperatures, Raymond Lloyd, Jer Hayes, Marek Rebow, Brian Norton
A Data Centre Air Flow Model For Predicting Computer Server Inlet Temperatures, Raymond Lloyd, Jer Hayes, Marek Rebow, Brian Norton
Conference Papers
Data centres account for approx. 1.3% of the world's electricity consumption, of which up to 50% of that power is dedicated to keeping the actual equipment cool. This represents a huge opportunity to reduce data centre energy consumption by tackling the cooling system operations with a focus on thermal management. This work presents a novel Data Centre Air Flow Model (DCAM) for temperature prediction of server inlet temperatures. The model is a physics-based model under-pinned by turbulent jet theory allowing a reduction in the solution domain size by using only local boundary conditions in front of the servers. Current physics-based …
An Overview Of Dissolved Organic Carbon In Groundwater And Implications For Drinking Water Safety, S. Regan, Paul Hynds, R. Flynn
An Overview Of Dissolved Organic Carbon In Groundwater And Implications For Drinking Water Safety, S. Regan, Paul Hynds, R. Flynn
Articles
Dissolved organic carbon (DOC) is composed of a diverse array of compounds, predominantly humic substances, and is a near ubiquitous component of natural groundwater, notwithstanding climatic extremes such as arid and hyper-arid settings. Despite being a frequently measured parameter of groundwater quality, the complexity of DOC composition and reaction behaviour means that links between concentration and human health risk are difficult to quantify and few examples are reported in the literature. Measured concentrations from natural/unpolluted groundwater are typically below 4 mg C/l, whilst concentrations above these levels generally indicate anthropogenic influences and/or contamination issues and can potentially compromise water safety. …
Geospatial Drivers Of The Groundwater Δ18o Isoscape In A Temperate Maritime Climate (Republic Of Ireland), S. Regan, R. Goodhue, O. Naughton, Paul Hynds
Geospatial Drivers Of The Groundwater Δ18o Isoscape In A Temperate Maritime Climate (Republic Of Ireland), S. Regan, R. Goodhue, O. Naughton, Paul Hynds
Articles
In recent years, the concept of “isoscapes” has been used to describe spatiotemporal stable isotope distributions within natural environments including groundwater systems at multiple scales. This study presents an updated groundwater δ18O isoscape for the Republic of Ireland and describes the climatic and geological drivers influencing 18O composition. In all, 142 geographically and geologically representative groundwater installations were sampled and analysed, in addition to 35 samples from six nested boreholes. Geospatially, Irish groundwater exhibits high δ18O values in southern and western coastal regions, becoming progressively depleted inland before reaching lowest measured values along the eastern coast, equating to a national …
Application Of Phase Shifting Electronic Speckle Pattern Interferometry In Studies Of Photoinduced Shrinkage Of Photopolymer Layers, Mohesh Moothanchery, Viswanath Bavigadda, Manojit Pramanik, Vincent Toal, Izabela Naydenova
Application Of Phase Shifting Electronic Speckle Pattern Interferometry In Studies Of Photoinduced Shrinkage Of Photopolymer Layers, Mohesh Moothanchery, Viswanath Bavigadda, Manojit Pramanik, Vincent Toal, Izabela Naydenova
Articles
Photoinduced shrinkage occurring in photopolymer layers during holographic recording was determined by Phase Shifting Electronic Speckle Pattern Interferometry. Phase maps were calculated from the changes in intensity at each pixel due to the phase differences introduced between object and reference beams. Shrinkage was then obtained from the changes in phase as recording proceeded. The technique allows for whole field measurement of the dimensional changes in photopolymers during holographic recording.
Freeze-Drying As A Novel Biofabrication Method For Achieving A Controlled Microarchitecture Within Large, Complex Natural Biomaterial Scaffolds, Claire Brougham, Tanya J. Levingstone, Nian Shen, Gerard M. Cooney, Thomas C. Flanagan, Stefan Jockenhoevel, Fergal J. O’Brien
Freeze-Drying As A Novel Biofabrication Method For Achieving A Controlled Microarchitecture Within Large, Complex Natural Biomaterial Scaffolds, Claire Brougham, Tanya J. Levingstone, Nian Shen, Gerard M. Cooney, Thomas C. Flanagan, Stefan Jockenhoevel, Fergal J. O’Brien
Articles
The biofabrication of large scaffolds from natural biomaterials into complex 3D shapes with controllable microarchitecture remains a major challenge. Freeze-drying (or lyophilization) is a technique used to create bioactive scaffolds with a porous architecture and is typically only used to generate scaffolds in planar 3D geometries. Here we report the development of a new biofabrication process to form a collagen-based scaffold into a large, complex geometry which has a large height to width ratio, and a controlled porous microarchitecture. This biofabrication process was validated through the successful development of a heart valve shaped scaffold, fabricated from a collagen-glycosaminoglycan co-polymer. Notably, …
Glass-Ceramic Optical Fiber Containing Ba2 Tisi2o8 Nanocrystals For Frequency Conversion Of Lasers, Zaijin Fang, Xusheng Xiao, Xin Wang Xin Wang, Zhijun Ma, Elfed Lewis, Gerald Farrell, Pengfei Wang, Jing Ren, Haitao Guo, Jianrong Qiu
Glass-Ceramic Optical Fiber Containing Ba2 Tisi2o8 Nanocrystals For Frequency Conversion Of Lasers, Zaijin Fang, Xusheng Xiao, Xin Wang Xin Wang, Zhijun Ma, Elfed Lewis, Gerald Farrell, Pengfei Wang, Jing Ren, Haitao Guo, Jianrong Qiu
Articles
A glass-ceramic optical fiber containing Ba2TiSi2O8 nanocrystals fabricated using a novel combination of the melt-in-tube method and successive heat treatment is reported for the first time. For the melt-in-tube method, fibers act as a precursor at the drawing temperature for which the cladding glass is softened while the core glass is melted. It is demonstrated experimentally that following heat treatment, Ba2TiSi2O8 nanocrystals with diameters below 10 nm are evenly distributed throughout the fiber core. Comparing to the conventional rod-in-tube method, the melt-in-tube method is superior in terms of controllability of crystallization to allow for the fabrication of low loss glass-ceramic …
Selective Doping Of Ni2+ In Highly Transparent Glass-Ceramics Containing Nano-Spinels Znga2o4 And Zn1+Xga2−2xgexo4 For Broadband Near-Infrared Fiber Amplifiers, Zhigang Gao, Yinyao Liu, Jing Ren, Zaijin Fang, Xiaosong Lu, Elfed Lewis, Gerald Farrell, Jun Yang, Pengfei Wang
Selective Doping Of Ni2+ In Highly Transparent Glass-Ceramics Containing Nano-Spinels Znga2o4 And Zn1+Xga2−2xgexo4 For Broadband Near-Infrared Fiber Amplifiers, Zhigang Gao, Yinyao Liu, Jing Ren, Zaijin Fang, Xiaosong Lu, Elfed Lewis, Gerald Farrell, Jun Yang, Pengfei Wang
Articles
Selective doping of Ni2+ in octahedral sites provided by nanocrystals embedded in glass-ceramics (GCs) is crucial to the enhancement of broadband near-infrared (NIR) emission. In this work, a NIR emission with a full-width-at-half-maximum (FWHM) of 288 nm is first reported from ZnGa2O4: Ni2+ nano-spinels embedded GCs with excellent transparency. A comparison is made of the NIR luminescence properties of Ni2+ doped GCs containing ZnGa2O4, germanium-substituted ZnGa2O4 nano-spinels (Zn1+xGa2−2xGexO4), and Zn2GeO4/Li2Ge4O9 composite nanocrystals that are free of Ga3+. The results show that ZnGa2O4: Ni2+ GCs exhibit a significantly enhanced NIR emission. The incorporation of the nucleating agent TiO2 is favored in …
Level Anticrossing Of Impurity States In Semiconductor Nanocrystals, Anvar S. Baimuratov, Ivan D. Rukhlenko, Vadim K. Turkov, Irina Ponomareva, Mikhail Yu Leonov, Tatiana S. Perova, Kevin Berwick, Alexander V. Baranov, Anatoly V. Federov
Level Anticrossing Of Impurity States In Semiconductor Nanocrystals, Anvar S. Baimuratov, Ivan D. Rukhlenko, Vadim K. Turkov, Irina Ponomareva, Mikhail Yu Leonov, Tatiana S. Perova, Kevin Berwick, Alexander V. Baranov, Anatoly V. Federov
Articles
The size dependence of the quantized energies of elementary excitations is an essential feature of quantum nanostructures, underlying most of their applications in science and technology. Here we report on a fundamental property of impurity states in semiconductor nanocrystals that appears to have been overlooked—the anticrossing of energy levels exhibiting different size dependencies. We show that this property is inherent to the energy spectra of charge carriers whose spatial motion is simultaneously affected by the Coulomb potential of the impurity ion and the confining potential of the nanocrystal. The coupling of impurity states, which leads to the anticrossing, can be …
An Equivalent Circuit For Corona Discharges Caused By A Point To Plane Arrangement At Ac, Dc And Combined Voltages, Tobias Dezenzo, Thomas Betz, Andreas Schwarzbacher
An Equivalent Circuit For Corona Discharges Caused By A Point To Plane Arrangement At Ac, Dc And Combined Voltages, Tobias Dezenzo, Thomas Betz, Andreas Schwarzbacher
Conference papers
In this paper a new two stage equivalent circuit for corona discharges is introduced. Its aim is to fill the gap between complexity of the circuit and accurate representation of the physical properties, which underlay a corona discharge. The first stage represents the voltage distribution and the occurrence of a discharge with respect to the applied voltage. The second stage models the physical discharge behavior like ionization, number of electrons, positive and negative ions as well as their interaction. The proposed circuit is able to model the different modes of corona discharges, which is experimentally verified. The simulation results are …
Multi-Band Antenna Array Based On Double Negative Metamaterial For Multi Automotive Applications, Mohd Jamlos, Abdulrahman Alqadami,, Imtiaz Islam, Ping Soh, Rizalman Mamat, Khairil Khairi, Adam Narbudowicz
Multi-Band Antenna Array Based On Double Negative Metamaterial For Multi Automotive Applications, Mohd Jamlos, Abdulrahman Alqadami,, Imtiaz Islam, Ping Soh, Rizalman Mamat, Khairil Khairi, Adam Narbudowicz
Articles
Nowadays, the demand for antennas in wireless communication system for automotive applications is rising at a rapid rate [1, 2]. Their usage includes collision avoidance system (CAS), Vehicle-to-vehicle communications, pre-crash safety systems, Global Positioning Systems (GPS), tyre pressure monitoring system (TPMS), Wireless Local Area Network (WLAN), etc. To enhance its effectiveness in these new applications, a small, multi-band, multi-functional antenna is required instead of conventional single band antennas [2, 3]. Such multifunctional antennas with favourable radiation characteristics are more practical in addressing modern antenna design requirements. However, the achievement of the above mentioned antenna’s features using conventional materials and structures …
Uav Data For Coastal Dune Mapping, Chen Suo, Eugene Mcgovern, Alan Gilmer
Uav Data For Coastal Dune Mapping, Chen Suo, Eugene Mcgovern, Alan Gilmer
Conference papers
High resolution topographic maps are critical for the development of rigorous and quantitative numerical simulation landscape models. These models can inform targeted land management actions that maintain biodiversity and ecological functions. Mapping functional vegetation communities to obtain accurate distribution and population estimates is an important element of landscape models and is a challenging task which requires a considerable investment in time and resources. A recent development in surveying technologies, Unmanned Aerial Vehicles (UAV’s), also known as drones, has enabled high resolution and high accuracy ground-based data to be gathered quickly and easily on-site. The application of UAV’s represents a new …
Strain Sensor Based On Grourd-Shaped Single-Mode-Multimode-Single-Mode Hybrid Optical Fibre Structure, Ke Tian, Gerald Farrell, Xianfan Wang, Wenlei Yang, Yifan Xin, Haidong Liang, Elfed Lewis, Pengfei Wang
Strain Sensor Based On Grourd-Shaped Single-Mode-Multimode-Single-Mode Hybrid Optical Fibre Structure, Ke Tian, Gerald Farrell, Xianfan Wang, Wenlei Yang, Yifan Xin, Haidong Liang, Elfed Lewis, Pengfei Wang
Articles
A fibre-optic strain sensor based on a gourd-shaped joint multimode fibre (MMF) sandwiched between two single-mode fibres (SMFs) is described both theoretically and experimentally. The cladding layers of the two MMFs are reshaped to form a hemisphere using an electrical arc method and spliced together, yielding the required gourd shape. The gourd-shaped section forms a Fabry-Perot cavity between the ends of two adjacent but noncontacting multimode fibres’ core. The effectiveness of the multimode interference based on the Fabry-Perot interferometer (FPI) formed within the multimode inter-fibre section is greatly improved resulting in an experimentally determined strain sensitivity of −2.60 pm/με over …
Reneb - Running The European Network Of Biological Dosimetry And Physical Retrospective Dosimetry, Ulrike Kulka, Michael Abend, Liz Ainsbury, Christophe Badie, Joan-Francesc Barquinero, Leonardo Barrios, Christina Beinke, Emanuela Bortolin, Alexandra Cucu, Fiona Lyng
Reneb - Running The European Network Of Biological Dosimetry And Physical Retrospective Dosimetry, Ulrike Kulka, Michael Abend, Liz Ainsbury, Christophe Badie, Joan-Francesc Barquinero, Leonardo Barrios, Christina Beinke, Emanuela Bortolin, Alexandra Cucu, Fiona Lyng
Articles
Purpose: A European network was initiated in 2012 by 23 partners from 16 European countries with the aim to significantly increase individualized dose reconstruction in case of large-scale radiological emergency scenarios.
Back Diffusion Of Electrons In Argon Subjected To Uniform Time Invariant Orthogonal Electric And Magnetic Fields, M.S. Dincer, Samet Biricik, S.S. Tezcan, S. Bektas
Back Diffusion Of Electrons In Argon Subjected To Uniform Time Invariant Orthogonal Electric And Magnetic Fields, M.S. Dincer, Samet Biricik, S.S. Tezcan, S. Bektas
Articles
In this study, the processes of back diffusion in Ar subjected to crossed fields are analyzed by using the Monte Carlo simulation method in the E/N range of 50 to 500 Td (1 Td = 1 × 10–17 V cm2) for 0 < B/N < 25 × 10−19 T cm3. At a given constant E/N, escape factors decrease with an increasing crossed, reduced magnetic field B/N. This reduction in the escape factor is more pronounced in the lower E/N range. Furthermore, the mean number of collisions of back scattered electrons is quite large, and at a given E/N, the mean …
Enhanced Master/Slave Control Strategy Enabling Grid Support Services And Offshore Wind Power Dispatch In A Multi-Terminal Vsc Hvdc Transmission System, Roberto Sandano, Michael Farrell, Malabika Basu
Enhanced Master/Slave Control Strategy Enabling Grid Support Services And Offshore Wind Power Dispatch In A Multi-Terminal Vsc Hvdc Transmission System, Roberto Sandano, Michael Farrell, Malabika Basu
Articles
New high voltage direct current (HVDC) installations are expected to be able to provide stability support to the main synchronous networks to which they are connected. In multi-terminal HVDC (MTDC) schemes incorporating offshore wind farm this issue could be addressed by setting aside a reserve of wind energy by the curtailment of wind turbine generators (WTGs). This paper proposes a communication-less dc voltage cooperative control strategy for MTDC transmission systems. A grid side converter, the master, and a wind farm are designed to work cooperatively to maintain a stable dc link voltage, facilitating normal power dispatch orders and the provision …
Hybrid Graphene–Copper Uwb Array Sensor For Brain Tumor Detection Via Scattering Parameters In Microwave Detection System, Mohd Aminudin Jamlos, Abdul Hafiizh Ismail, Mohd Faizal Jamlos, Adam Narbudowicz
Hybrid Graphene–Copper Uwb Array Sensor For Brain Tumor Detection Via Scattering Parameters In Microwave Detection System, Mohd Aminudin Jamlos, Abdul Hafiizh Ismail, Mohd Faizal Jamlos, Adam Narbudowicz
Articles
Hybrid graphene–copper ultra-wideband array sensor applied to microwave imaging technique is successfully used in detecting and visualizing tumor inside human brain. The sensor made of graphene coated film for the patch while copper for both the transmission line and parasitic element. The hybrid sensor performance is better than fully copper sensor. Hybrid sensor recorded wider bandwidth of 2.0–10.1 GHz compared with fully copper sensor operated from 2.5 to 10.1 GHz. Higher gain of 3.8–8.5 dB is presented by hybrid sensor, while fully copper sensor stated lower gain ranging from 2.6 to 6.7 dB. Both sensors recorded excellent total efficiency averaged …
A Longitudinal Study Of Middle Eastern Women’S Experiences Studying Engineering Abroad: Emerging Results, Shannon Chance, Bill Williams, Allison Wagner
A Longitudinal Study Of Middle Eastern Women’S Experiences Studying Engineering Abroad: Emerging Results, Shannon Chance, Bill Williams, Allison Wagner
Conference papers
What is it like to study engineering in Ireland when you are female and you come from somewhere far away, in the Middle East, which has different social customs and norms? What is the lived experience? What aspects of the experience are common to all Middle Eastern women enrolled in your course? As education researchers, we aim to understand the essence of the experience such women have had studying engineering Ireland; we focus on what life has been like for them and what unique challenges they have faced that may be invisible to us as instructors. In this work-in-progress, a …
Assessing Peer Review By Gauging The Fate Of Rejected Manuscripts: The Case Of The Journal Of Artificial Societies And Social Simulation, Niccolò Casnici, Francisco Grimaldo, Nigel Gilbert, Pierpaolo Dondio, Flaminio Squazzoni
Assessing Peer Review By Gauging The Fate Of Rejected Manuscripts: The Case Of The Journal Of Artificial Societies And Social Simulation, Niccolò Casnici, Francisco Grimaldo, Nigel Gilbert, Pierpaolo Dondio, Flaminio Squazzoni
Articles
This paper investigates the fate of manuscripts that were rejected from JASSS-The Journal of Artificial Societies and Social Simulation, the flagship journal of social simulation. We tracked 456 manuscripts that were rejected from 1997 to 2011 and traced their subsequent publication as journal articles, conference papers or working papers. We compared the impact factor of the publishing journal and the citations of those manuscripts that were eventually published against the yearly impact factor of JASSS and the number of citations achieved by the JASSS mean and top cited articles. Only 10% of the rejected manuscripts were eventually published in a …