Families Of Type Iii Kms States On A Class Of C-Algebras Containing On And Qn,
2013
Australian National University
Families Of Type Iii Kms States On A Class Of C-Algebras Containing On And Qn, A L. Carey, J Phillips, I F. Putnam, A Rennie
Associate Professor Adam Rennie
We construct a family of purely infinite C¤-algebras, Q¸ for ¸ 2 (0, 1) that are classified by their K-groups. There is an action of the circle T with a unique KMS state à on each Q¸. For ¸ = 1/n, Q1/n »= On, with its usual T action and KMS state. For ¸ = p/q, rational in lowest terms, Q¸ »= On (n = q − p + 1) with UHF fixed point algebra of type (pq)1. For any n > 1, Q¸ »= On for infinitely many ¸ with distinct KMS states and UHF fixed-point algebras. For any ¸ …
Orbifolds Are Not Commutative Geometries,
2013
University of Copenhagen
Orbifolds Are Not Commutative Geometries, Adam C. Rennie, Joseph C. Varilly
Associate Professor Adam Rennie
In this note we show that the crucial orientation condition for commutative geometries fails for the natural commutative spectral triple of an orbifold M/G.
City Notifications As A Data Source For Traffic Management,
2013
Wright State University - Main Campus
City Notifications As A Data Source For Traffic Management, Pramod Anantharam, Biplav Srivastava
Kno.e.sis Publications
A common problem for cities of developing countries like India in managing traffic is the lack of basic automated instrumentation to track road conditions or vehicle locations. Still, to help their citizens make informed travel decisions based on changing city dynamics; many cities have an authorized, city-initiated, notification service in place to alert subscribing commuters about road conditions. Here, alternative means may be used to create informal textual notifications e.g., inputs from field personnel, citizen updates, and pre-authorized events from city calendar. In this paper, we show that collections of such notifications, when processed with information extraction techniques, can turn …
Measuring Intensity Of Laser Light Penetrating Flight Decks In Laser Illuminations,
2013
Lewis University
Measuring Intensity Of Laser Light Penetrating Flight Decks In Laser Illuminations, Randal J. Demik, Stanley Harriman, Ryan S. Phillips, Charles Crowder, Jennifer A. Pfeifer, Shane F. Mchugh, Steven J. Foster, Elizabeth R. De Waard, Michael Streit, Richard B. Antoniolli, Ernest W. Knight, David S. York, Jacob Luedtke
Journal of Aviation Technology and Engineering
Since 2005, reported laser attacks from people on the ground directed towards arriving and departing aircraft have increased over 300%. A laser aimed at the windshield of an aircraft startles a pilot and may cause injury. This study determined empirical evidence of laser intensity in the flight deck and the potential for harm to the human eye at various distances. Results of this study revealed that relatively low-powered lasers had measured intensity levels through cockpit windshields at the 200 and 500 feet distances that may cause damage to crewmembers’ eyes according to standards established by the federal government. At longer …
Inertial Sensing For Human Motor Control Symmetry In Injury Rehabilitation,
2013
University of Wollongong
Inertial Sensing For Human Motor Control Symmetry In Injury Rehabilitation, Matthew Field, David Stirling, Montserrat Ros, Zengxi Stephen Pan, Fazel Naghdy
zengxi pan
This paper proposes a series of methods for representing changes in human motion during injury rehabilitation using Micro-Electro-Mechanical Systems (MEMS) inertial sensors. Tracking the changes over a recovery period requires methods for evaluating the similarity of movement in an impaired state against a non-impaired state. We investigate the use of motion analyses such as the centre of mass (COM) tipping distance, the variance of joint velocity eigenvalues and the cumulative state changes of Gaussian mixture models (GMM) for monitoring the symmetry between the left and right sides of body during rehabilitation exercises. The methods are tested on an injured athlete …
Recent Progress On Programming Methods For Industrial Robots,
2013
University of Wollongong
Recent Progress On Programming Methods For Industrial Robots, Zengxi Pan, Joseph Polden, Nathan Larkin, Stephen Van Duin, John Norrish
zengxi pan
"Although an automated flexible production cell is an intriguing prospect for small to median enterprises (SMEs) in current global market conditions, the complexity of programming remains one of the major hurdles preventing automation using industrial robots for SMEs. This paper provides a comprehensive review of the recent research progresses on the programming methods for industrial robots, including online programming, offline programming (OLP), and programming using Augmented Reality (AR). With the development of more powerful 3D CAD/PLM software, computer vision, sensor technology, etc. new programming methods suitable for SMEs are expected to grow in years to come. (C) 2011 Elsevier Ltd. …
Development Of A Dc-Lsnd Welding Process For Gmaw On Dh-36 Steel,
2013
University Of Wollongong
Development Of A Dc-Lsnd Welding Process For Gmaw On Dh-36 Steel, Raymond Holder, Nathan Larkin, Huijun Li, Lenka Kuzmikova, Zengxi Pan, John Norrish
zengxi pan
Weld induced distortion correction is a major cost within the shipbuilding industry. This paper investigates the use of an active cooling process known as Dynamically Controlled - Low Stress No Distortion (DC-LSND) Welding on DH-36 steel. Thermal profiles are obtained and distortion measurements are also achieved. Results show that the application of a localised cryogenic cooling source trailing the welding arc can significantly reduce weld induced distortion using the GMAW process. The effect of forced cooling on the weld microstructure is also observed.
Development Of Safe Optimized Welding Procedures For High Strength Q&T Steel Welded With Austenitic Consumables,
2013
University of Wollongong
Development Of Safe Optimized Welding Procedures For High Strength Q&T Steel Welded With Austenitic Consumables, Lenka Kuzmikova, Huijun Li, John Norrish, Zengxi Stephen Pan, Nathan Larkin
zengxi pan
High strength quenched and tempered (Q&T) steels offer obvious economic benefits originating from their advantageous strength to price and weight ratios. These steels are usually welded using ferritic consumables and for this combination the risk of hydrogen assisted cold cracking (HACC) is high. The use of austenitic stainless steel (ASS) consumables has great potential to significantly improve this issue. Yet, there are no guidelines for determination of safe level of preheat for welding ferritic steels with ASS consumables. For this reason manufacturers adopt this parameter from procedures developed for conventional ferritic consumables thus significantly limiting the benefits ASS consumables are …
3d Mapping Using A Tof Camera For Self Programming An Industrial Robot,
2013
University of Wollongong
3d Mapping Using A Tof Camera For Self Programming An Industrial Robot, N Larkin, Zengxi Pan, S Van Duin, J Norrish
zengxi pan
Automated Offline Programing (AOLP) is a cost effective robot programming method. However, it relies on accurate CAD information of the work environment to perform optimally. Incorrect CAD data is a known source of error for AOLP systems. This paper introduces a new sensor based method of programming that extends the concept of AOLP. Using a ToF camera to map the environment, there is no reliance on CAD data. The problem of motion planning to efficiently map the environment is examined and changes to the motion planning algorithm are proposed and tested.
Investigation Into Feasibility Of Hybrid Laser-Gmaw Process For Welding High Strength Quenched And Tempered Steel,
2013
University of Wollongong
Investigation Into Feasibility Of Hybrid Laser-Gmaw Process For Welding High Strength Quenched And Tempered Steel, Lenka Kuzmikova, Nathan Larkin, Zengxi Pan, Mark Callaghan, Huijun Li, John Norrish
zengxi pan
In this study, the feasibility of hybrid laser-gas metal arc welding process for replacement of conventional flux-cored arc welding procedure for welding high strength quenched and tempered steel was investigated. Experimental work focused on optimisation of process parameters to produce joint with desired properties. Hardness of the weld heat affected zone produced by both processes has been measured. Productivity and cost effectiveness of both processes were compared. It was concluded that hybrid laser-gas metal arc welding process is suitable for welding high strength quenched and tempered steel.
Offline Programming For Short Batch Robotic Welding,
2013
University of Wollongong
Offline Programming For Short Batch Robotic Welding, Nathan Larkin, Aleksandar Milojevic, Zengxi Pan, Joseph Polden, John Norrish
zengxi pan
Robotics based automation has many advantages over both manual operation and dedicated hard automation. In practice however the robot programming overhead and high cost of dedicated jigging are serious impediments to its use for short production runs. Offline programming packages offer an attractive alternative to reduce programming time and robot down time, however many of the available packages are fairly complex and treat the geometric programming and welding operation separately. The paper will describe the development of alternative approaches and the evaluation of an integrated offline robotic welding package (RinasWeld) which addresses these issues and makes low volume robotic welding …
Australian Online Supermarket Usability,
2013
University of Wollongong
Australian Online Supermarket Usability, Mark Freeman, Peter Hyland, Jeffrey Soar
Dr Mark Freeman
The issue of usability plays a vital role in the success of an online store. However, to date there has been limited published research into this issue and there has been no research conducted into multiple item purchasing. There is much competition in the grocery shopping industry between the two major physical supermarket chains in Australia, Woolworths and Coles, both in traditional stores and online. Online, the major competitor is ShopFast, which does not have a traditional supermarket storefront to complement its online operations. The purpose of this study was to conduct a comparative analysis into the usability of ordering …
Methods For Usability Evaluations Of Mobile Devices,
2013
University of Wollongong
Methods For Usability Evaluations Of Mobile Devices, Fayez Alshehri, Mark Freeman
Dr Mark Freeman
The usability of applications designed and developed for mobile devices integral user experience, particularly for current touch-screen mobile devices. This conceptual paper provides a profile of the ways in which mobile device usability evaluation methods are being adapted to better reflect technological. With an increasing capacity for greater user interactivity through a range of tasks and in a variety of contexts, the importance and impact of mobile device context-of-use components is of particular interest to researchers. This requires a need for a shift in evaluation method paradigms with a particular focus on methods involving the user, as part of the …
Optimising Layered Integrated Instructional Design Through The Application Of Cognitive Load Theory,
2013
University Of Wollongong
Optimising Layered Integrated Instructional Design Through The Application Of Cognitive Load Theory, Abdallah Alasraj, Mark Freeman, Paul Chandler
Dr Mark Freeman
This study examined the effect of cognitive load on knowledge construction through the use of web-based layered integrated instructional design techniques. The premise through using this approach was that it would better facilitate a learner’s schema development. This research focused on how the design of web-based integrated instructional materials can utilise the principles of Cognitive Load Theory (CLT), to optimise the learning process within the university environment for learning models of procedural tasks. The study compared three different layered integrated instructional designs to identify which approach had the greatest benefit on learning outcomes. The procedural task that was used involved …
Complementary Techniques For Probing Terahertz Magnetic Excitations In Cu3bi(Seo3)2o2cl,
2013
University Of Florida
Complementary Techniques For Probing Terahertz Magnetic Excitations In Cu3bi(Seo3)2o2cl, K H. Miller, E Constable, H Berger, D B. Tanner, J Horvat, R A. Lewis
Josip Horvat
A low frequency magnetic excitation in Cu3Bi(SeO 3)2O2Cl has been studied through complementary spectroscopic techniques which utilised terahertz radiation from a synchrotron, a mercury arc lamp, and a two-colour photomixing system. The excitation has been studied at temperatures down to 5K and in magnetic fields up to 10T. © 2012 IEEE.
Toward A New Understanding Of Virtual Research Collaborations: Complex Adaptive Systems Framework,
2013
NASA
Toward A New Understanding Of Virtual Research Collaborations: Complex Adaptive Systems Framework, Arsev U. Aydinoglu
DataONE Sociocultural and Usability & Assessment Working Groups
Virtual research collaborations (VRCs) have become an important method of conducting scientific activity; however, they are often regarded and treated as traditional scientific collaborations. Their success is measured by scholarly productivity and adherence to budget by funding agencies, participating scientists, and scholars. VRCs operate in complex environments interacting with other complex systems. A holistic (or organicist) approach is needed to make sense of this complexity. For that purpose, this study proposes using a new perspective, namely, the complex adaptive systems theory that can provide a better understanding of a VRC’s potential creativity, adaptability, resilience, and probable success. The key concepts …
Simplifying Inventive Standards (Part-2),
2013
SelectedWorks
Simplifying Inventive Standards (Part-2), Umakant Mishra
Umakant Mishra
In the previous article we discussed all the standard solutions in class-1. In this article we will discuss all the standard solutions in class-2. The standards of class 2 intend to improve the system without inserting too much changes to the system and without increasing the complexity of the system. These standards guide how to use chain SFields, Double SFields and complex S-Field Models.
Science And Non-Science,
2013
National Institute of Advanced Studies
Science And Non-Science, Hippu Salk Kristle Nathan
Hippu Salk Kristle Nathan
No abstract provided.
Becoming Hyperdisciplinary,
2013
University of California - Los Angeles
Simplifying Inventive Standards (Part-1),
2013
Selected Works
Simplifying Inventive Standards (Part-1), Umakant Mishra
Umakant Mishra
Although “Inventive Standards” (or standard solutions) is one of the most powerful techniques of TRIZ it is hardly used by any TRIZ practitioner because of its complicacy. This article describes the rules of “inventive standards” in simple language one by one for all the standards of class-I. The standards of other classes are described in separate articles.
