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Articles 1 - 13 of 13
Full-Text Articles in Physical Sciences and Mathematics
Geosocial Intelligence, Tomas Holderness
Geosocial Intelligence, Tomas Holderness
SMART Infrastructure Facility - Papers
Social media, driven by the explosive uptake of mobile computing, has caused a systematic shift in the structure of personal communications at a global scale [1, 2]. People around the world can now voice opinions, report on events, and connect with others, with an ease which was unthinkable in the preinternet age. From the Arab Spring to the Occupy Movement it is apparent that social media is becoming an integrated part of our infrastructure. Critically, much of this information is underpinned by geographical content such as mobile device GPS coordinates, which enable the user to tie their media to a …
Generating A Dynamic Synthetic Population - Using An Age-Structured Two-Sex Model For Household Dynamics, Mohammad-Reza Namazi-Rad, Payam Mokhtarian, Pascal Perez
Generating A Dynamic Synthetic Population - Using An Age-Structured Two-Sex Model For Household Dynamics, Mohammad-Reza Namazi-Rad, Payam Mokhtarian, Pascal Perez
SMART Infrastructure Facility - Papers
Generating a reliable computer-simulated synthetic population is necessary for knowledge processing and decision-making analysis in agent-based systems in order to measure, interpret and describe each target area and the human activity patterns within it. In this paper, both synthetic reconstruction (SR) and combinatorial optimisation (CO) techniques are discussed for generating a reliable synthetic population for a certain geographic region (in Australia) using aggregated- and disaggregated-level information available for such an area. A CO algorithm using the quadratic function of population estimators is presented in this paper in order to generate a synthetic population while considering a two-fold nested structure for …
Postnatural Urbanism In Jakarta: Geosocial Intelligence And The Future Of Urban Resilience, Etienne Turpin, Tomas Holderness, Rohan Wickramasuriya, Sara Dean
Postnatural Urbanism In Jakarta: Geosocial Intelligence And The Future Of Urban Resilience, Etienne Turpin, Tomas Holderness, Rohan Wickramasuriya, Sara Dean
SMART Infrastructure Facility - Papers
As cities evolve to become increasingly complex systems of people and interconnected infrastructure, the impacts of both extreme and long-term environmental change are significantly heightened. Understanding the resilience of urban systems and communities in an integrated manner is key to ensure the future sustainability of cities, which face considerable climatic, economic, and sociodemographic challenges in the 21st century. As Southeast Asia's most populous and most dense metropolitan conurbation, and the second largest urban footprint in the world, Jakarta's residents are exposed to rapid transformations of urban structures and systems.
Network Modelling For Road-Based Fecal Sludge Management, Ruth Kennedy-Walker, Tomas Holderness, David Alderson, Barbara Evans, Stuart Barr
Network Modelling For Road-Based Fecal Sludge Management, Ruth Kennedy-Walker, Tomas Holderness, David Alderson, Barbara Evans, Stuart Barr
SMART Infrastructure Facility - Papers
Improvements in the collection and treatment of sewage are critical to reduce health and environmental hazards in rapidly urbanising informal settlements. Where sewerage infrastructure is not available, road-based faecal sludge management options are often the only alternative. However, the costs of faecal sludge transportation are often a barrier to its implementation and operation and thus it is desirable to optimise travel time from source to treatment to reduce costs. This paper presents a novel technique, employing spatial network analysis, to optimise the spatiotopological configuration of a road-based faecal sludge transportation network on the basis of travel time. Using crowd-sourced spatial …
Infrastructure Planning Through Geosocial Intelligence: Using Twitter As A Platform For Rapid Assessment And Civic Co-Management During Flooding In Jakarta, Tomas Holderness, Katina Michael, Etienne Turpin
Infrastructure Planning Through Geosocial Intelligence: Using Twitter As A Platform For Rapid Assessment And Civic Co-Management During Flooding In Jakarta, Tomas Holderness, Katina Michael, Etienne Turpin
SMART Infrastructure Facility - Papers
The ability to collect data using sensor-based technologies is increasing within a public technical means. As governments in rapidly-urbanising developing nations seek to address the climatic, social and economic challenges of the 21st century, there is a progressive requirement to map and articulate civil infrastructure. When a local government needs to proactively react to impending and disruptive phenomena they increasingly look to data and technology to help them manage and respond accordingly. Mobile social media, in a citizens-as-sensors paradigm, offers the potential to collect data with which to advance our capacity to understand and promote resilience of cities to both …
An Integrated Scenario-Based Approach For Robust Aircraft Routing, Crew Pairing And Re-Timing, Michelle E. Dunbar, Gary Froyland, Cheng-Lung Wu
An Integrated Scenario-Based Approach For Robust Aircraft Routing, Crew Pairing And Re-Timing, Michelle E. Dunbar, Gary Froyland, Cheng-Lung Wu
SMART Infrastructure Facility - Papers
For reasons of tractability, the airline scheduling problem has traditionally been sequentially decomposed into various stages (e.g. schedule generation, fleet assignment, aircraft routing, and crew pairing), with the decisions from one stage imposed upon the decision-making process in subsequent stages. Whilst this approach greatly simplifies the solution process, it unfortunately fails to capture many dependencies between the various stages, most notably between those of aircraft routing and crew pairing, and how these dependencies affect the propagation of delays through the flight network. In Dunbar et al. (2012) [9] we introduced a new algorithm to accurately calculate and minimize the cost …
A Three-Level-Similarity Measuring Method Of Participant Opinions In Multiple-Criteria Group Decision Supports, Jun Ma, Jie Lu, Guangquan Zhang
A Three-Level-Similarity Measuring Method Of Participant Opinions In Multiple-Criteria Group Decision Supports, Jun Ma, Jie Lu, Guangquan Zhang
SMART Infrastructure Facility - Papers
Measuring opinion similarity between participants is an important strategy to reduce the chance of making and applying inappropriate decisions in multi-criteria group decision making applications. Due to the small-sized opinion data and the varieties of opinion representations, measuring the similarity between opinions is difficult and has not been well-studied in developing decision support. Considering that the similarity changes with the number of concerned criteria, this paper develops a gradual aggregation algorithm and establishes a three-level-similarity measuring (TLSM) method based on it to measure the opinion similarity at the assessment level, the criterion level and the problem level. Two applications of …
Cross-Cultural Leadership In The Implementation Of Systems Engineering Processes: A Study Of Indonesian Expatriate Engineers, Ika S. Windiarti, Timothy L.J Ferris, Matthew J. Berryman
Cross-Cultural Leadership In The Implementation Of Systems Engineering Processes: A Study Of Indonesian Expatriate Engineers, Ika S. Windiarti, Timothy L.J Ferris, Matthew J. Berryman
SMART Infrastructure Facility - Papers
In projects involving engineers from multiple cultural backgrounds the implementation of Systems Engineering (SE) Processes demands cross-cultural leadership competence by the engineers who lead such work teams to support the quality of project performance. This paper reports the qualitative results of a web-based survey of Indonesian expatriate engineers addressing their perceptions of cross-cultural issues in the implementation of SE processes in projects. The questions investigated the engineers' knowledge, experience, and perception of how they manage the leadership aspect of their intercultural relationships. Several issues were identified as factors influencing cross-cultural leadership. The factors that influence cross-cultural leadership include conflict resolution …
Co2 Pipeline Infrastructure - Lessons Learnt, Paul Noothout, Frank Wiersma, Omar Hurtado, Doug Macdonald, Jasmin Kemper, Klaas Van Alphen
Co2 Pipeline Infrastructure - Lessons Learnt, Paul Noothout, Frank Wiersma, Omar Hurtado, Doug Macdonald, Jasmin Kemper, Klaas Van Alphen
SMART Infrastructure Facility - Papers
Some 6,500 km of CO2 pipelines have been operating for years for Enhanced Oil Recovery (EOR) operations, primarily in the United States. Moreover, there are a number of CO2 pipelines that are in use for CO2 utilization (CCU) or Carbon Capture and Storage (CCS) operations in Europe and the Americas. Valuable experience and lessons learned are available from these projects relevant for all phases of CO2 pipeline projects: from early identification to execution and operation. A comprehensive set of information has been collected, evaluated and made accessible with the aim to benefit the development of future CO2 pipelines. The resulting …
Eliciting Mental Models: A Comparison Of Interview Procedures In The Context Of Natural Resource Management, Natalie A. Jones, Helen Ross, Timothy Lynam, Pascal Perez
Eliciting Mental Models: A Comparison Of Interview Procedures In The Context Of Natural Resource Management, Natalie A. Jones, Helen Ross, Timothy Lynam, Pascal Perez
SMART Infrastructure Facility - Papers
The sustainable management of natural resources largely depends on people's conceptions of environmental systems and how they function. The mental model construct provides an appropriate means to explore the cognitive dimension of people's interactions with such systems. Mental models are cognitive representations of external reality that people use as the basis for acting with and within the world around them. We aimed to improve the application of the mental model construct to the field of natural resource management, with an emphasis on creek, i.e., stream, systems, by exploring how certain elicitation procedures may affect the mental models expressed. One of …
Application Of A Dynamic Inter-Sectoral Framework To Estimate Regional Employment, Ashkan Masouman
Application Of A Dynamic Inter-Sectoral Framework To Estimate Regional Employment, Ashkan Masouman
SMART Infrastructure Facility - Papers
Several attempts have been proposed in the literature to relax the restrictive assumptions of a standalone input-output model. Particularly, endogenisation of the household sector, which exhibits the highest constant returns to scale, has been continuously recognised as a key objective of such attempts. This objective increases in importance as we move from national to regional economies. Most of the studies in the literature collapse the intermediate demand information into a solo composite variable. The intermediate demand information serves as a priori data, which represents the inter-sectoral relationships within a regional economy. In this paper, estimation of sectoral employment by embedding …
A Model Based Study Of Concept Development For Hospital Wayfinding To Improve Operational Efficiency, Peter Peter Campbell, William R. Scott
A Model Based Study Of Concept Development For Hospital Wayfinding To Improve Operational Efficiency, Peter Peter Campbell, William R. Scott
SMART Infrastructure Facility - Papers
No abstract provided.
Modelling The Rejection Of N-Nitrosamines By A Spiral-Wound Reverse Osmosis System: Mathematical Model Development And Validation, Takahiro Fujioka, Stuart J. Khan, James A. Mcdonald, Annalie Roux, Yvan Poussade, Jorg E. Drewes, Long D. Nghiem
Modelling The Rejection Of N-Nitrosamines By A Spiral-Wound Reverse Osmosis System: Mathematical Model Development And Validation, Takahiro Fujioka, Stuart J. Khan, James A. Mcdonald, Annalie Roux, Yvan Poussade, Jorg E. Drewes, Long D. Nghiem
SMART Infrastructure Facility - Papers
A mathematical model was developed based on the irreversible thermodynamic principle and hydro- dynamic calculation to predict the rejection of N-nitrosamines by spiral-wound reverse osmosis (RO) membrane systems. The developed model is able to accurately describe the rejection of N-nitrosamines under a range of permeate flux and system recovery conditions. The modelled N-nitrosamine rejections were in good agreement with values obtained experimentally using a pilot-scale RO filtration system. Simulation from the model revealed that an increase in permeate flux from10 to 30L/m2h led to an increase in the rejection of low molecular weight N-nitrosamines such as N-nitrosodimethylamine (NDMA) (from31% to …