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Articles 1 - 12 of 12
Full-Text Articles in Physical Sciences and Mathematics
Putting The Architecting Back Into Software Architecture With Systems Thinking Agent-Based Modelling, Trevor Harrison, Allan Peter Campbell, Thong Nguyen
Putting The Architecting Back Into Software Architecture With Systems Thinking Agent-Based Modelling, Trevor Harrison, Allan Peter Campbell, Thong Nguyen
SMART Infrastructure Facility - Papers
This paper details exploratory research which treats architecting as a system. This human architecting system has a structure composed of decisions, interdependencies amongst decisions, decision making, decision makers and the decision-making environment. Agent-based modelling is used to model the architecting system, and simulation is used to visualise system behaviour over time. The goal is to map legitimate / optimal speed of architectural decision-making to an architecting system behaviour pattern. Knowing the appropriate behaviour pattern of early architecture evolution will provide a mechanism for fine-grained progress tracking of architectural design. Divergence from this behaviour pattern should provide early warning signs of …
A Spatial Agent-Based Model To Explore Scenarios Of Adaptation To Climate Change In An Alpine Tourism Destination, Stefano Balbi, Pascal Perez, Carlo Giupponi
A Spatial Agent-Based Model To Explore Scenarios Of Adaptation To Climate Change In An Alpine Tourism Destination, Stefano Balbi, Pascal Perez, Carlo Giupponi
SMART Infrastructure Facility - Papers
A vast body of literature suggests that the European Alpine region may be one of the most sensitive to climate change impacts. Adaptation to climate change of Alpine socioecosystems is increasingly becoming an issue of interest for the scientific community while the people of the Alps are often unaware of or simply ignore the problem. ClimAlpTour is a European research project of the Alpine Space Programme, bringing together institutions and scholars from all countries of the Alpine arch, in view of dealing with the expected decrease in snow and ice cover, which may lead to a rethinking of tourism development …
Some Complex Systems Engineering Principles, Matthew J. Berryman, Peter Campbell
Some Complex Systems Engineering Principles, Matthew J. Berryman, Peter Campbell
SMART Infrastructure Facility - Papers
Complex adaptive systems can be characterised by many adaptively changing parts, with a large number of interactions, and adaptation at the system level. This body of research can inform the large engineering projects that are characterised by large systems of systems, where interactions to achieve end goals matters, and where designs and the technology of parts in service undergo many adaptive changes. A number of key lessons can be drawn from the complex adaptive systems literature. Firstly, that the use of design patterns, as traditionally applied in software engineering, can also be applied to wider systems engineering and systems integration …
Tutorials On Agent-Based Modelling With Netlogo And Network Analysis With Pajek, Matthew J. Berryman, Simon D. Angus
Tutorials On Agent-Based Modelling With Netlogo And Network Analysis With Pajek, Matthew J. Berryman, Simon D. Angus
SMART Infrastructure Facility - Papers
Complex adaptive systems typically contain multiple, heterogeneous agents, with non-trivial interactions. They tend to produce emergent (larger-scale) phenomena. Agent-based modelling allows one to read- ily capture the behaviour of a group of heterogeneous agents (such as people, animals, et cetera), with diverse behaviour and important in- teractions, so it is a natural t to modelling complex systems. Many complex systems (and agent-based models thereof) can be thought of as containing networks, either explicitly or implicitly. Therefore for complex systems research it is important to have a good understand- ing of network analysis techniques. This chapter is aimed at beginners to …
Microbial Communities Of Subtidal Shallow Sandy Sediments Change With Depth And Wave Disturbance, But Nutrient Exchanges Remain Similar, Hugh I. Forehead, Peter A. Thompson
Microbial Communities Of Subtidal Shallow Sandy Sediments Change With Depth And Wave Disturbance, But Nutrient Exchanges Remain Similar, Hugh I. Forehead, Peter A. Thompson
SMART Infrastructure Facility - Papers
Along 3 replicate transects, sediments were sampled from a subtidal sandbank in Cockburn Sound, Western Australia, at 4 depths: 1.5, 4 and 8 m and at 14 m on the flat at the base of the bank. Pulse amplitude modulated (PAM) fluorescence, fluxes of oxygen and inorganic nutrients, N2 fixation and denitrification were measured and sediments analysed for granulometry, pigments, fatty acids, neutral lipids, organic C and total N. There were 2 functional depth zones: 1.5 ~ <4, and ≥4 m. At 1.5 m, chl a concentration was 42.3 mg m–2 (1.83 SE, n = 12), sediments were net heterotrophic, and there were effluxes of inorganic …
Simreef And Reefgame: Gaming For Integrated Reef Research And Management, Deborah Cleland, Anne Dray, Pascal Perez, Rollan Geronimo
Simreef And Reefgame: Gaming For Integrated Reef Research And Management, Deborah Cleland, Anne Dray, Pascal Perez, Rollan Geronimo
SMART Infrastructure Facility - Papers
As threats to coastal and ocean systems grow in scale and complexity, the calls for new approaches to research and management grow in volume. The Modeling and Decision Support Working Group (MDSWG) of the CRTR Program has developed two participatory gaming tools that address the need for integrative approaches to coral reef management. SimReef is a regional model and role-play game aimed at policy makers and industry representatives. It simulates coastal development trajectories and trade-offs between environmental, social and economic concerns. ReefGame is a local-level model and board game that helps local people and reef managers explore interactions between livelihoods, …
Some Economics Of Mining Taxation, Henry Ergas, Mark Harrison, Jonathon Pincus
Some Economics Of Mining Taxation, Henry Ergas, Mark Harrison, Jonathon Pincus
SMART Infrastructure Facility - Papers
We argue five main propositions. Firstly, the choice between royalties and profit-based taxation involves an efficiency trade-off, between diminished incentives to produce output on one hand, and diminished incentives to minimize costs on the other (as in Laffont and Tirole 1993). So the Brown tax is indeed a tax, and one that reduces the incentive to mine. Next, the ex post Resource Super Profits Tax (RSPT) falls on quasi-rents as well as on rents, and therefore involves some expropriation. Third, there may be a case in favour of a retrospective RSPT or the like, but it has yet to be …
New Policies Create A New Politics: Issues Of Institutional Design In Climate Change Policy, Henry Ergas
New Policies Create A New Politics: Issues Of Institutional Design In Climate Change Policy, Henry Ergas
SMART Infrastructure Facility - Papers
Institutional design focuses on the task of providing accountability and effective monitoring of decision-making by bodies vested with the coercive powers of the state in a context where information is inherently limited, costly to acquire and asymmetrically distributed. This paper focuses on issues of institutional design in the context of climate change policy. It examines proposals advanced in the June 2008 Draft and Final Reports of the Garnaut Climate Change Review (‘Garnaut Reports’), and in the Government’s July 2008 Green Paper and December 2008 White Paper on the Carbon Pollution Reduction Scheme (‘Green and White Papers’) with respect to how …
Net Neutrality Regulation: The Economic Evidence , Jerry Brito, Martin E. Cave, Robert W. Crandall, Larry F. Darby, Everett Ehrlich, Jeffrey A. Eisenach, Jerry Ellig, Henry Ergas, David J. Farber, Gerald R. Faulhaber, Robert W. Hahn, Alfred E. Kahn, Wayne A. Leighton, Robert E. Litan, Glen O. Robinson, Hal J. Singer, Vernon L. Smith, William E. Taylor Iii, Timothy J. Tardiff, Leonard Waverman, Dennis Weisman
Net Neutrality Regulation: The Economic Evidence , Jerry Brito, Martin E. Cave, Robert W. Crandall, Larry F. Darby, Everett Ehrlich, Jeffrey A. Eisenach, Jerry Ellig, Henry Ergas, David J. Farber, Gerald R. Faulhaber, Robert W. Hahn, Alfred E. Kahn, Wayne A. Leighton, Robert E. Litan, Glen O. Robinson, Hal J. Singer, Vernon L. Smith, William E. Taylor Iii, Timothy J. Tardiff, Leonard Waverman, Dennis Weisman
SMART Infrastructure Facility - Papers
In the authors' shared opinion, the economic evidence does not support the regulations proposed in the Commission’s Notice of Proposed Rulemaking Regarding Preserving the Open Internet and Broadband Industry Practices (the “NPRM”). To the contrary, the economic evidence provides no support for the existence of market failure sufficient to warrant ex ante regulation of the type proposed by the Commission, and strongly suggests that the regulations, if adopted, would reduce consumer welfare in both the short and long run. To the extent the types of conduct addressed in the NPRM may, in isolated circumstances, have the potential to harm competition …
Intelligent Negotiation Behaviour Model For An Open Railway Access Market, S K. Wong, T K. Ho
Intelligent Negotiation Behaviour Model For An Open Railway Access Market, S K. Wong, T K. Ho
SMART Infrastructure Facility - Papers
In an open railway access market, the provisions of railway infrastructures and train services are separated and independent. Negotiations between the track owner and train service providers are thus required for the allocation of the track capacity and the formulation of the services timetables, in which each party, i.e. a stakeholder, exhibits intelligence from the previous negotiation experience to obtain the favourable terms and conditions for the track access. In order to analyse the realistic interacting behaviour among the stakeholders in the open railway access market schedule negotiations, intelligent learning capability should be included in the behaviour modelling. This paper …
A Fiber Bragg Grating Sensor System For Train Axle Counting, Chu-Liang Wei, Chun-Cheung Lai, Shun-Yee Liu, W.H. Chung, T. K. Ho, Hwa-Yaw Tam, S. L. Ho, A. Mccusker, J. Kam, K. Y. Lee
A Fiber Bragg Grating Sensor System For Train Axle Counting, Chu-Liang Wei, Chun-Cheung Lai, Shun-Yee Liu, W.H. Chung, T. K. Ho, Hwa-Yaw Tam, S. L. Ho, A. Mccusker, J. Kam, K. Y. Lee
SMART Infrastructure Facility - Papers
Railway signaling facilitates two main functions, namely, train detection and train control, in order to maintain safe separations among the trains. Track circuits are the most commonly used train detection means with the simple open/close circuit principles; and subsequent adoption of axle counters further allows the detection of trains under adverse track conditions. However, with electrification and power electronics traction drive systems, aggravated by the electromagnetic interference in the vicinity of the signaling system, railway engineers often find unstable or even faulty operations of track circuits and axle counting systems, which inevitably jeopardizes the safe operation of trains. A new …
Co-Engineering Participatory Water Management Processes: Theory And Insights From Australian And Bulgarian Interventions, Katherine Daniell, Ian White, Nils Ferrand, Irina Ribarova, Peter Coad, Jean-Emmanuel Rougier, Matthew Hare, Natalie Jones, Albena Popova, Dominique Rollin, Pascal Perez, Stewart Burn
Co-Engineering Participatory Water Management Processes: Theory And Insights From Australian And Bulgarian Interventions, Katherine Daniell, Ian White, Nils Ferrand, Irina Ribarova, Peter Coad, Jean-Emmanuel Rougier, Matthew Hare, Natalie Jones, Albena Popova, Dominique Rollin, Pascal Perez, Stewart Burn
SMART Infrastructure Facility - Papers
Broad-scale, multi-governance level, participatory water management processes intended to aid collective decision making and learning are rarely initiated, designed, implemented, and managed by one person. These processes mostly emerge from some form of collective planning and organization activities because of the stakes, time, and budgets involved in their implementation. Despite the potential importance of these collective processes for managing complex water-related social–ecological systems, little research focusing on the project teams that design and organize participatory water management processes has ever been undertaken. We have begun to fill this gap by introducing and outlining the concept of a co-engineering process and …