Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2019

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1951 - 1962 of 1962

Full-Text Articles in Entire DC Network

Public Perception Of Drones… Or Should That Be Remotely Piloted Aircraft Systems?, Graham Wild, John Murray, Ayiei Ayiei, Mithun Abdul Sathar Eqbal, Eranga Batuwangala Jan 2019

Public Perception Of Drones… Or Should That Be Remotely Piloted Aircraft Systems?, Graham Wild, John Murray, Ayiei Ayiei, Mithun Abdul Sathar Eqbal, Eranga Batuwangala

Research outputs 2014 to 2021

The media coverage of remotely piloted aircraft systems (RPAS) has highlighted some issues, particularly in terms of security and privacy concerns. As such, it is essential to understand the public's perception towards these systems. The purpose of this study was to assess the public's perception towards 1) The terminology used to define RPAS, which varies across the industry; 2) The applications, current and future, of RPAS; 3) The future of passenger transport involving RPAS, and 4) RPAS in general. It was found that there was little difference between the "terms" used to describe RPAS; however, there was a significant difference …

Go to article

Electro-Optic Antenna Elements For Passive Phased Array Radar, Evan Gawron Jan 2019

Electro-Optic Antenna Elements For Passive Phased Array Radar, Evan Gawron

Dissertations, Master's Theses and Master's Reports

Passive phased antenna arrays are utilized in military and civilian radar systems to determine the received signal origination. Phased array placement for optimal reception is challenging due to the required supporting electronic hardware and the associated coaxial cabling that typically accompanies each antenna channel. Low noise amplifiers and frequency conversion hardware add size and complexity, limiting possible positions for phased array placement. Eliminating required phased array electronic subcomponents without sacrificing function would allow placement onto smaller agile platforms, such as unmanned systems and rapid deployment networks. Electro-optic (EO) antenna elements utilize an optical waveguide embedded between the antenna and ground …

Go to article

Developmental Test And Requirements Best Practices Of Successful Information Systems Efforts Using Agile Methods, Jeremy D. Kramer, Torrey J. Wagner Jan 2019

Developmental Test And Requirements Best Practices Of Successful Information Systems Efforts Using Agile Methods, Jeremy D. Kramer, Torrey J. Wagner

Faculty Publications

This article provides insights into the current state of developmental testing (DT) and requirements management in Department of Defense information systems employing Agile development. The authors describe the study methodology and provide an overview of Agile development and testing. Insights are described for requirements, detailed planning, test execution, and reporting. This work articulates best practices related to DT and requirements management strategies for programs employing modernized Software Development Life Cycle practices.

Go to article

A Novel Initial Rotor Position Alignment Method For Permanent Magnet Synchronous Motor Using Incremental Encoder, Si̇nan Yilmaz, Mehmet Ti̇mur Aydemi̇r Jan 2019

A Novel Initial Rotor Position Alignment Method For Permanent Magnet Synchronous Motor Using Incremental Encoder, Si̇nan Yilmaz, Mehmet Ti̇mur Aydemi̇r

Turkish Journal of Electrical Engineering and Computer Sciences

This paper presents a new method for the alignment of the rotor of permanent magnet synchronous motors with the phase axis of the stator during start-up. Once the rotor alignment is achieved, the real rotor position angle can be measured by using an incremental encoder and this value can be used in the field oriented control of the motor. Typically, a current is forced into the q-axis. In the proposed method a current is formed in the d-axis instead. Rotor alignment with the phase axis is achieved without any sudden motion by using a PI controller in the current loop. …

Go to article

Intergenerational Influences Of Hunger And Community Violence On The Aboriginal People Of Western Australia: A Review, Francesca Robertson, David Coall, Dan Mcaullay, Alison Nannup Jan 2019

Intergenerational Influences Of Hunger And Community Violence On The Aboriginal People Of Western Australia: A Review, Francesca Robertson, David Coall, Dan Mcaullay, Alison Nannup

Research outputs 2014 to 2021

There is a consensus in the literature that hunger and community violence inaugurates adverse health impacts for survivors and for their descendants. The studied cohorts do not include Western Australian Aboriginal people, although many experienced violence and famine conditions as late as the 1970s. This article describes the pathways and intergenerational impacts of studied cohorts and applies these to the contemporary Western Australian context. The authors found that the intergenerational impacts, compounded by linguistic trauma, may be a contributor to current health issues experienced by Aboriginal people, but these are also contributing to the resurgence in population numbers.

Go to article

Rapidly Expanding Nuclear Arsenals In Pakistan And India Portend Regional And Global Catastrophe, Owen B. Toon, Charles G. Bardeen, Alan Robock, Lili Xia, Hans Kristensen, Matthew Mckinzie, R. J. Peterson, Cheryl S. Harrison, Nicole S. Lovenduski, Richard P. Turco Jan 2019

Rapidly Expanding Nuclear Arsenals In Pakistan And India Portend Regional And Global Catastrophe, Owen B. Toon, Charles G. Bardeen, Alan Robock, Lili Xia, Hans Kristensen, Matthew Mckinzie, R. J. Peterson, Cheryl S. Harrison, Nicole S. Lovenduski, Richard P. Turco

School of Earth, Environmental, & Marine Sciences Faculty Publications

Pakistan and India may have 400 to 500 nuclear weapons by 2025 with yields from tested 12- to 45-kt values to a few hundred kilotons. If India uses 100 strategic weapons to attack urban centers and Pakistan uses 150, fatalities could reach 50 to 125 million people, and nuclear-ignited fires could release 16 to 36 Tg of black carbon in smoke, depending on yield. The smoke will rise into the upper troposphere, be self-lofted into the stratosphere, and spread globally within weeks. Surface sunlight will decline by 20 to 35%, cooling the global surface by 2° to 5°C and reducing …

Go to article

Walking With The Wild: Finding An Ethic Of Compassion In Conservation, Jane Hallie Mcguire Jan 2019

Walking With The Wild: Finding An Ethic Of Compassion In Conservation, Jane Hallie Mcguire

Graduate Student Theses, Dissertations, & Professional Papers

This collection of five creative nonfiction essays and one poem examines the author's personal encounters with wild life and wild places, primarily through experiences working as a field biologist. Reflections on nature’s fragility, interconnectivity, the autonomy of all living things, and the ethics of conservation are central to each piece. Walking with the Wild invites readers to consider the benefits of integrating compassion and empathy into scientific study, and more generally, into our interactions with the natural world.

Go to article

Transparent Authentication Utilising Gait Recognition, Hind K Al-Obaidi Jan 2019

Transparent Authentication Utilising Gait Recognition, Hind K Al-Obaidi

School of Engineering, Computing and Mathematics Theses

Securing smartphones has increasingly become inevitable due to their massive popularity and significant storage and access to sensitive information. The gatekeeper of securing the device is authenticating the user. Amongst the many solutions proposed, gait recognition has been suggested to provide a reliable yet non-intrusive authentication approach – enabling both security and usability. While several studies exploring mobile-based gait recognition have taken place, studies have been mainly preliminary, with various methodological restrictions that have limited the number of participants, samples, and type of features; in addition, prior studies have depended on limited datasets, actual controlled experimental environments, and many activities. …

Go to article

Evaluation And Enhancement Of Public Cyber Security Awareness, Faisal Fahad G Alotaibi Jan 2019

Evaluation And Enhancement Of Public Cyber Security Awareness, Faisal Fahad G Alotaibi

School of Engineering, Computing and Mathematics Theses

With the spread of the Internet and the technology, Cyberspace has become the life of everyone, which requires them to be aware of the threats of it. Also, to be prepared with the speed of the technology, whether electronic payment, social life, leisure work IOT، and everything. However, in spite of increasing security practices there has been a rise in the cyber security threats and attacks. As the life is becoming more and more dependent on the technology, the need for cyber security awareness has become an important activity that need to be practiced in order to be safe and …

Go to article

Autonomous Drone Landings On An Unmanned Marine Vehicle Using Deep Reinforcement Learning, Riccardo Polvara Jan 2019

Autonomous Drone Landings On An Unmanned Marine Vehicle Using Deep Reinforcement Learning, Riccardo Polvara

School of Engineering, Computing and Mathematics Theses

This thesis describes with the integration of an Unmanned Surface Vehicle (USV) and an Unmanned Aerial Vehicle (UAV, also commonly known as drone) in a single Multi-Agent System (MAS). In marine robotics, the advantage offered by a MAS consists of exploiting the key features of a single robot to compensate for the shortcomings in the other. In this way, a USV can serve as the landing platform to alleviate the need for a UAV to be airborne for long periods time, whilst the latter can increase the overall environmental awareness thanks to the possibility to cover large portions of the …

Go to article

User Profiling Based On Application-Level Using Network Metadata, Faisal Shaman, Bogdan Ghita, Nathan Clarke, Abdulrahman Alruban Jan 2019

User Profiling Based On Application-Level Using Network Metadata, Faisal Shaman, Bogdan Ghita, Nathan Clarke, Abdulrahman Alruban

School of Engineering, Computing and Mathematics

No abstract provided.

Go to article

Facial Identification For Digital Forensic, Hiba Al-Kawaz Jan 2019

Facial Identification For Digital Forensic, Hiba Al-Kawaz

School of Engineering, Computing and Mathematics Theses

Forensic facial recognition has become an essential requirement in criminal investigations as a result of the emergence of electronic devices, such as mobile phones and computers, and the huge volume of existing content. Forensic facial recognition goes beyond facial recognition in that it deals with facial images under unconstrained and non-ideal conditions, such as low image resolution, varying facial orientation, poor illumination, a wide range of facial expressions, and the presence of accessories. In addition, digital forensic challenges do not only concern identifying an individual but also include understanding the context, acknowledging the relationships between individuals, tracking, and numbers of …

Go to article

First Prev