Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (12)
- Physical Sciences and Mathematics (6)
- Social and Behavioral Sciences (5)
- Science and Technology Studies (4)
- Life Sciences (3)
-
- Biodiversity (2)
- Business (2)
- Computer Sciences (2)
- Controls and Control Theory (2)
- Electrical and Computer Engineering (2)
- Environmental Sciences (2)
- Forest Management (2)
- Forest Sciences (2)
- Law (2)
- Mechanical Engineering (2)
- Medicine and Health Sciences (2)
- Natural Resources Management and Policy (2)
- Accounting (1)
- Aerospace Engineering (1)
- Automotive Engineering (1)
- Biology (1)
- Business Administration, Management, and Operations (1)
- Business Organizations Law (1)
- Comparative and Foreign Law (1)
- Computer Engineering (1)
- Energy Systems (1)
- Hardware Systems (1)
- Medical Pharmacology (1)
- Medical Sciences (1)
- Military Vehicles (1)
- Institution
- Publication
-
- Faculty of Engineering - Papers (Archive) (4)
- Faculty of Engineering and Information Sciences - Papers: Part A (4)
- Conference papers (2)
- Faculty of Informatics - Papers (Archive) (2)
- Land resources best practice series (2)
-
- Biology Faculty Publications (1)
- Computer Science Faculty Research & Creative Works (1)
- Department of Psychology: Faculty Publications (1)
- Faculty Publications (1)
- Faculty and Research Publications (1)
- Faculty of Commerce - Papers (Archive) (1)
- GW Law Faculty Publications & Other Works (1)
- Journal Articles (1)
- Journal Articles: Pharmacology & Experimental Neuroscience (1)
- Publications (1)
Articles 1 - 24 of 24
Full-Text Articles in Entire DC Network
The Importance Of Scenarios In Evaluating The Socio-Ethical Implications Of Location-Based Services, L. Perusco, Katina Michael
The Importance Of Scenarios In Evaluating The Socio-Ethical Implications Of Location-Based Services, L. Perusco, Katina Michael
Faculty of Informatics - Papers (Archive)
Location-based services (LBS) are those applications that utilize the position of an end-user, animal or thing based on a given device (handheld, wearable, interwoven into fabric or implanted), executed for a particular purpose. LBS applications range from those that are mission-critical to those that are used for convenience, from those that are mandatory to those that are voluntary, from those that are targeted at the mass market to those that cater for the needs of a niche market. Location services can be implemented using a variety of access mediums including global positioning systems and radio-frequency identification, rendering approximate or precise …
Robust Control Techniques Enabling Duty Cycle Experiments Utilizing A 6-Dof Crewstation Motion Base, A Full Scale Combat Hybrid Electric Power System, And Long Distance Internet Communications, Marc Compere, Jarrett Goodell, Miguel Simon, Wilford Smith, Mark Brudnak
Robust Control Techniques Enabling Duty Cycle Experiments Utilizing A 6-Dof Crewstation Motion Base, A Full Scale Combat Hybrid Electric Power System, And Long Distance Internet Communications, Marc Compere, Jarrett Goodell, Miguel Simon, Wilford Smith, Mark Brudnak
Publications
The RemoteLink effort supports the U.S. Army's objective for developing and fielding next generation hybrid-electric combat vehicles. It is a distributed soldierin- the-Ioop and hardware-in-the-Ioop environment with a 6-DOF motion base for operator realism, a full-scale combat hybrid electric power system, and an operational context provided by OneSAF. The driver/gunner crewstations rest on one of two 6-DOF motion bases at the U.S. Army TARDEC Simulation Laboratory (TSL). The hybrid power system is located 2,450 miles away at the TARDEC Power and Energy System Integration Laboratory (P&E SIL). The primary technical challenge in the RemoteLink is to operate both laboratories together …
Decision-Making About Volitional Impairment In Sexually Violent Predators, Cynthia Calkins Mercado, Brian H. Bornstein, Robert F. Schopp
Decision-Making About Volitional Impairment In Sexually Violent Predators, Cynthia Calkins Mercado, Brian H. Bornstein, Robert F. Schopp
Department of Psychology: Faculty Publications
The Kansas v. Hendricks (1997) decision, in which the Supreme Court authorized post-sentence civil commitment for certain sex offenders, appeared to be constitutionally legitimized by limiting the class of offenders eligible for this special form of civil commitment to those who are “unable to control” their dangerousness. Nowhere in the available record, however, did the Court elucidate what they meant by this notion of volitional impairment. This study sought to examine factors that legal professionals (n = 43), psychologists (n = 40), and mock jurors (n = 76) deem most relevant to a determination of sex offender volitional impairment. Participants, …
Preliminary Modeling, Control, And Trajectory Design For Miniature Autonomous Tailsitters, Nathan B. Knoebel, Stephen R. Osborne, Deryl Snyder, Timothy W. Mclain, Randal W. Beard, Andrew Mark Eldredge
Preliminary Modeling, Control, And Trajectory Design For Miniature Autonomous Tailsitters, Nathan B. Knoebel, Stephen R. Osborne, Deryl Snyder, Timothy W. Mclain, Randal W. Beard, Andrew Mark Eldredge
Faculty Publications
A tailsitter UAV has unique advantages over typical fixed wing aircraft or hovercraft. This paper highlights topics of interest in our preliminary research in developing a tailsitter UAV. An aerodynamic model and quaternion-based attitude and position control scheme is presented for controlling a tailsitter through hover maneuvers, with simulation results. Desired trajectories are also developed through feedback linearization of the dynamic equations, intended for quaternion-based attitude control. Finally, a hardware platform is proposed.
The Emerging Ethics Of Humancentric Gps Tracking And Monitoring, Katina Michael, Andrew Mcnamee, M G. Michael
The Emerging Ethics Of Humancentric Gps Tracking And Monitoring, Katina Michael, Andrew Mcnamee, M G. Michael
Faculty of Informatics - Papers (Archive)
The Global Positioning System (GPS) is increasingly being adopted by private and public enterprise to track and monitor humans for location-based services (LBS). Some of these applications include personal locators for children, the elderly or those suffering from Alzheimer’s or memory loss, and the monitoring of parolees for law enforcement, security or personal protection purposes. The continual miniaturization of the GPS chipset means that receivers can take the form of wristwatches, mini mobiles and bracelets, with the ability to pinpoint the longitude and latitude of a subject 24/7/365. This paper employs usability context analyses to draw out the emerging ethical …
Fire Management Guidelines For Southern Shrubland And Pilbara Pastoral Rangelands : Best Management Practice Guidelines, Department Of Agriculture And Food, Western Australia
Fire Management Guidelines For Southern Shrubland And Pilbara Pastoral Rangelands : Best Management Practice Guidelines, Department Of Agriculture And Food, Western Australia
Land resources best practice series
Fire is integral to many ecosystems in Western Australian rangelands. Controlled fire can reduce the risk of wild fire, benefit pasture productivity and contribute positively to biodiversity values. Uncontrolled fire is a threat to safety and the business viability of pastoral enterprises and threatens rangeland biodiversity and productivity.This document deals with property-scale management of pastoral leases. Many fire regime issues are more regional in character. These include community safety and health, the impact on regional economies, the societal and cultural values of landscape and the effects on tourism. Ecologically the high productivity, diversity and palatability of recently burnt vegetation is …
Fire Management Guidelines For Kimberley Pastoral Rangelands : Best Management Practice Guidelines, Department Of Agriculture And Food, Western Australia
Fire Management Guidelines For Kimberley Pastoral Rangelands : Best Management Practice Guidelines, Department Of Agriculture And Food, Western Australia
Land resources best practice series
Kimberley pastoralists operate in a highly fire-prone environment. Uncontrolled fires pose significant economic, safety, and environmental risks to pastoral enterprises. In contrast, the controlled use of fire can benefit land management, animal production and biodiversity conservation. For any given country type, the interactions of fire, grazing and weather have complex effects on both land condition and animal production. Although general guidelines on the use of fire are valuable, based as they are on a combination of experience and available research findings, they should best be regarded as providing a starting point. At the property level, an adaptive approach that incorporates …
The Impact Of Enterprise Risk Management On The Internal Audit Function, Mark S. Beasley, Richard Clune, Dana Hermanson
The Impact Of Enterprise Risk Management On The Internal Audit Function, Mark S. Beasley, Richard Clune, Dana Hermanson
Faculty and Research Publications
This exploratory study provides evidence about factors associated with the overall impact of enterprise risk management (ERM) on the internal audit function’s activities. Based on responses from 122 organizations in several countries, we find that ERM has the greatest impact on internal audit’s activities when (a) the organization’s ERM process is more completely in place, (b) the CFO and audit committee have called for greater internal audit activity related to ERM, (c) the chief audit executive’s (CAE) tenure is longer, (d) the organization is in the banking industry or is an educational institution, and (e) the internal audit function has …
Evaluación De Anticuerpos Contra El Virus De La Diarrea Viral Bovina De Un Hato En Proceso De Erradicación De La Enfermedad., Zuniga Alfonso H., Hermelinda G. Rivera, Mariluz Araínga, Alberto Manchego S.
Evaluación De Anticuerpos Contra El Virus De La Diarrea Viral Bovina De Un Hato En Proceso De Erradicación De La Enfermedad., Zuniga Alfonso H., Hermelinda G. Rivera, Mariluz Araínga, Alberto Manchego S.
Journal Articles: Pharmacology & Experimental Neuroscience
Antibodies against viral bovine diarrhea virus (BVDV) and of BVDV antigen in serum samples Were evaluated from cattle aged 10 to 23 months (n = 148) from a dairy herd disease eradication where the has-been carrying out since 2002. The herd is located in Santa Rita, Arequipa, Peru, and samples were collected twice on a 30-day interval. Antibodies against BVDV and BVDV antigen were analyzed by viral neutralization and capture ELISA tests respectively. Neutralising antibodies against BVDV were detected in 6.8% (10/148) of animals, and most reactors were 19 to 23 months of age. The antibody titer ranged from 8 …
Europe's Thirteenth Directive And U.S. Takeover Regulation: Regulatory Means And Political Economic Ends, Marco Ventoruzzo
Europe's Thirteenth Directive And U.S. Takeover Regulation: Regulatory Means And Political Economic Ends, Marco Ventoruzzo
Journal Articles
Cross-border acquisitions, especially through hostile takeovers, represent one of the most dramatic consequences of the growing integration, both within Europe, and when considering the economic balance of power between the US and the European industries. This Article focuses on the single most important piece of legislation on European takeover law, the Thirteenth Directive of the European Union on Takeover Regulation, which was approved on April, 21 2004 and must be implemented by Member States before the end of 2006.
Passage of the Thirteenth Directive is no minor event. Earlier versions were embroiled in arresting political controversies that generated significant Member …
Robust Motion Tracking Control Of Piezoelectric Actuation Systems, Hwee Choo Liaw, Denny Oetomo, Bijan Shirinzadeh, Gursel Alici
Robust Motion Tracking Control Of Piezoelectric Actuation Systems, Hwee Choo Liaw, Denny Oetomo, Bijan Shirinzadeh, Gursel Alici
Faculty of Engineering - Papers (Archive)
This paper proposes a robust control methodology for piezoelectric actuation systems to track specified motion trajectories. This is motivated by the search for an effective control strategy to deal with the problem of nonlinear behaviour in the piezoelectric actuation systems. The basic concept associated with this approach lies in the specification of a target performance and the formulation of a robust control scheme for the system to ensure the convergence of the position tracking error to zero in the presence of parametric uncertainties and hysteresis effect inclusive of other un-modelled disturbances. Stability of the control system is proven theoretically and …
Characterisation And Control Of A Prototype Hts Smes Device, Christopher J. Hawley, Dominic Cuiuri, Christopher D. Cook, Steve Gower, Timothy Beales
Characterisation And Control Of A Prototype Hts Smes Device, Christopher J. Hawley, Dominic Cuiuri, Christopher D. Cook, Steve Gower, Timothy Beales
Faculty of Engineering - Papers (Archive)
A 2.79 kJ prototype high transition temperature Superconducting Magnetic Energy Storage (SMES) device has been constructed. The coil for the prototype has been wound using High Temperature Superconducting (HTS) BSCCO-2223 tape. The refrigeration system is a gaseous helium cold head cryocooler used to maintain the SMES coil at a temperature of 30 K, improving the Ic characteristic of the coil by a factor of 4.7 compared to that at 77 K. The SMES device is capable of supplying a 3-phase load during power interruptions, and has been constructed during a program to develop a larger 20 kJ system aimed at …
Distributed Generation Control Using Protection Principles, An D. T Le, Kashem M. Muttaqi, Michael Negnevitsky, Gerard Ledwich
Distributed Generation Control Using Protection Principles, An D. T Le, Kashem M. Muttaqi, Michael Negnevitsky, Gerard Ledwich
Faculty of Engineering and Information Sciences - Papers: Part A
No abstract provided.
Control Strategy Of Distributed Generation For Voltage Support In Distribution Systems, An D. T Le, Kashem M. Muttaqi, Michael Negnevitsky, Gerard Ledwich
Control Strategy Of Distributed Generation For Voltage Support In Distribution Systems, An D. T Le, Kashem M. Muttaqi, Michael Negnevitsky, Gerard Ledwich
Faculty of Engineering and Information Sciences - Papers: Part A
Voltage problem is always a critical issue in operating a distribution system. The uncertainties of load distribution and variation have introduced a great complexity to the task of maintaining system voltage within the permitted range. In this paper, small-scale generator, known as distributed generation (DG), is employed in the system and acting as a voltage regulator. The output of DG is controlled in such a way that acceptable level of electrical supply quality is achieved with a reasonable operating cost. The DG controller is tested with a non-uniformly varying load on the time domain basis. Simulations have been conducted with …
Performance Improvement Using Simple Pid Controller Tuning Formulae, Aidan O'Dwyer
Performance Improvement Using Simple Pid Controller Tuning Formulae, Aidan O'Dwyer
Conference papers
The proportional integral derivative (PID) controller is the most dominant form of automatic controller in industrial use today. With this technique, it is necessary to adjust the controller parameters according to the nature of the process. Thus, for effective control of a HVDC system, for example, specific values need to be chosen for the P, I and D parameters, which will be different for the values required to control, for example, an induction motor drive. This tailoring of controller to process is known as controller tuning. Controller tuning is easily and effectively performed using tuning rules (i.e. formulae for controller …
Reducing Energy Costs By Optimizing Controller Tuning, Aidan O'Dwyer
Reducing Energy Costs By Optimizing Controller Tuning, Aidan O'Dwyer
Conference papers
The proportional integral derivative (PID) controller is the most dominant form of automatic controller in industrial use today. With this technique, it is necessary to adjust the controller parameters according to the nature of the process. This tailoring of controller to process is known as controller tuning. Controller tuning is easily and effectively performed using tuning rules (i.e. formulae for controller tuning, based on process information). Such tuning rules allow the easy set up of controllers to achieve optimum performance at commissioning. Importantly, they allow ease of re-commissioning if the characteristics of the process change. The paper outlines the results …
Hydro-Turbine Governor Control: Theory, Techniques And Limitations, J Culberg, Michael Negnevitsky, Kashem M. Muttaqi
Hydro-Turbine Governor Control: Theory, Techniques And Limitations, J Culberg, Michael Negnevitsky, Kashem M. Muttaqi
Faculty of Engineering and Information Sciences - Papers: Part A
With the entry of Tasmania into the national electricity market, equipment upgrades are required in many parts of the existing power system. This presents an opportunity to embrace new technology, in order to enhance the current efficiency and productivity of the system. One area is that of hydro-turbine speed governors, an integral part of maintaining the frequency of the output. This paper analyses the current standard control algorithm for turbine governors, the PID controller. It illustrates the processes involved, tuning and their limitations. Finally, alternative control systems are discussed.
Special Class Of Positive Definite Functions For Formulating Adaptive Micro/Nano Manipulator Control, Hwee Choo Liaw, Denny Oetomo, Gursel Alici, Bijan Shirinzadeh
Special Class Of Positive Definite Functions For Formulating Adaptive Micro/Nano Manipulator Control, Hwee Choo Liaw, Denny Oetomo, Gursel Alici, Bijan Shirinzadeh
Faculty of Engineering - Papers (Archive)
This paper presents a special class of positive definite functions for the formulation of adaptive control strategies, specifically in the research of an effective control algorithm for piezoelectric actuation systems in micro/nano manipulation. To deal with the control problems of unknown system parameters, nonlinear hysteresis effects, and disturbances in the piezoelectric actuation systems, an adaptive control methodology is proposed. Using the saturation function derived from a positive definite function to formulate the control methodology, the closed-loop system stability can be guaranteed. Furthermore, the control methodology is proposed to track a desired motion trajectory in position, velocity, and acceleration. In this …
Control Stabilisation Of An Islanded System With Dfig Wind Turbine, M Aktarujjaman, Kashem M. Muttaqi, Michael Negnevitsky, Gerard Ledwich
Control Stabilisation Of An Islanded System With Dfig Wind Turbine, M Aktarujjaman, Kashem M. Muttaqi, Michael Negnevitsky, Gerard Ledwich
Faculty of Engineering and Information Sciences - Papers: Part A
Distributed Generation (DG) is often used to export power to the utility system. Loss of main supply can cause a severe loading mismatch between DG generation and load consumption. Consequently, the voltage and frequency of the islanded system will cross the allowable limit. Due to this fact, it is essential to control the voltage and frequency in the islanding mode of operation. In this paper, control stabilisation of an islanded system with a doubly-fed induction generator (DFIG) wind turbine has been addressed. Wind DG produces variable output and is not capable to produce enough reactive power. Hence, it is imperative …
Experimental Evaluation Of Adaptive And Variable Structure Control Of Piezoelectric Actuation Systems For Micro/Nano Manipulation, Hwee Choo Liaw, Bijan Shirinzadeh, Denny Oetomo, Gursel Alici
Experimental Evaluation Of Adaptive And Variable Structure Control Of Piezoelectric Actuation Systems For Micro/Nano Manipulation, Hwee Choo Liaw, Bijan Shirinzadeh, Denny Oetomo, Gursel Alici
Faculty of Engineering - Papers (Archive)
This paper proposes and evaluates an adaptive technique and a variable structure control approach for piezoelectric actuation systems to track specified motion trajectories. The proposed control methodologies are formulated to accommodate unknown or uncertain system parameters, nonlinearities including the hysteresis effect, and external disturbances in the piezoelectric actuation systems without any form of feed-forward compensation. In this study, both control methodologies are demonstrated to possess a promising motion tracking ability experimentally. In comparison, the variable structure control approach is evaluated to be superior to the adaptive technique in the motion tracking control. With the ability to track motion trajectories under …
Performing And Agential Selves: Employees As Targets Of Control, And How We, As Academics, Theorise About Them, Karin H. Garrety, Simon Down
Performing And Agential Selves: Employees As Targets Of Control, And How We, As Academics, Theorise About Them, Karin H. Garrety, Simon Down
Faculty of Commerce - Papers (Archive)
Critical management scholars have noted how contemporary management practices encourage and sometimes require workers to adopt multiple identities, and that cynicism, irony and resistance are often manifested in those identities. In this paper, we explore some attributes of modern selfhood that make these positions possible. We concentrate on two related aspects: (1) the capacity of people to reflect on, and manipulate, the selves that they present to the world, and (2) different forms of agency that actors can effect. We argue that closer attention to these attributes can sharpen our analyses of organisational control and its impacts on the self.
The Biology Of Canadian Weeds. 133. Cuscuta Campestris Yuncker, C. Gronovii Willd. Ex Schult., C. Umbrosa Beyr. Ex Hook., C. Epithymum (L.) L. And C. Epilinum Weihe, Mihai Costea, François J. Tardif
The Biology Of Canadian Weeds. 133. Cuscuta Campestris Yuncker, C. Gronovii Willd. Ex Schult., C. Umbrosa Beyr. Ex Hook., C. Epithymum (L.) L. And C. Epilinum Weihe, Mihai Costea, François J. Tardif
Biology Faculty Publications
Cuscuta spp. (dodders) are rootless, holoparasitic herbs with filiform stems attached to the host by numerous haustoria. In Canada, Cuscuta gronovii is the most common native species of the genus followed by Cuscuta campestris and C. umbrosa. Cuscuta epithymum and C. epilinum, both introduced species in Canada, occur occasionally. Infestation by Cuscuta spp. can result in serious yield losses and dodders are listed as noxious weeds in British Columbia, Ontario and Québec, and as restricted weeds in Alberta. These plants have evolved special adaptations to ensure their success: germination occurs late in the season when potential hosts are …
Shareholders As Proxies: The Contours Of Shareholder Democracy, Dalia Tsuk Mitchell
Shareholders As Proxies: The Contours Of Shareholder Democracy, Dalia Tsuk Mitchell
GW Law Faculty Publications & Other Works
This article explores the long-standing suspicion of the individual shareholder and the corresponding ambivalence about shareholder democracy as it is seen in conversations about the shareholder's role in the modern public corporation throughout the twentieth century.
The article examines two competing conceptions of the shareholder's role in the corporation: one focuses on the role of shareholders as investors, the other emphasizes the role of shareholders as potential participants in corporate management. I argue that scholars and reformers who have conceived of shareholders as investors limited the locus of shareholder democracy to the market. The writings of Louis Brandeis, Henry Manne, …
Model Checking Control Communication Of A Facts Device, Bruce M. Mcmillin, J. K. Townsend, David Cape
Model Checking Control Communication Of A Facts Device, Bruce M. Mcmillin, J. K. Townsend, David Cape
Computer Science Faculty Research & Creative Works
This paper concerns the design and verification of a realtime communication protocol for sensor data collection and processing between an embedded computer and a DSP. In such systems, a certain amount of data loss without recovery may be tolerated. The key issue is to define and verify the correctness in the presence of these lost data frames under real-time constraints. This paper describes a temporal verification that if the end processes do not detect that too many frames are lost, defined by comparison of error counters against given threshold values, then there will be a bounded delay between transmission of …