PhD Student, Princeton University
Numerical simulations and machine learning to create digital reconstructions of ancient buildings
Heritage structures and sites, such as sacred buildings, bridges, and monuments, and the courtyards, complexes, and archaeological sites that surround them, constitute an important part of cultural legacy. Regardless of whether they are still standing, in or out of function, partially or completely collapsed, heritage structures represent important milestones in human cultural and engineering achievements, and in the scientific, political, economic, and artistic evolutions that left an everlasting impact on societies. However, some heritage structures and sites have been partially or destroyed over time, and while their full appearance and function cease to exist, their heritage does not; hence, there is a need for their methodical and structurally sound reconstruction, which can only be possible through a multidisciplinary approach. The objective of this collaborative research is to create a novel methodology for analysis and comprehensive digital reconstruction of heritage structures and sites. 3D models of archaeological sites are useful for humanistic research since they can aid humanists in developing new understandings about the motility of a space which can lead to new insights into how sites were occupied and functioned. Additionally, the process of making the 3D model can lead to new understandings of how and why it was built at a certain time, with certain materials, and in a certain way. The project is potentially transformative, as the ease of use and accessibility of the proposed integrative technology will provide new tools for analysis of heritage structures and sites, and enable new research questions to be asked and explored. The resulting methodology will catalyze digital conservation of structures and sites of cultural heritage, which in turn will also facilitate broader access, understanding, and appreciation of these sites, by academics, but also by various policy makers and general public. This research will transcend archaeology and civil engineering working independently to breathe new, digital life into sites and structures of historical and cultural significance by carrying their influence beyond the confines of an archaeological site or museum and into the global consciousness.
Abstract: This paper puts forth a mathematical framework for Buildings-to-Grid (BtG) integration in smart cities. The framework explicitly couples power grid and building's control actions and operational decisions, and can be utilized by buildings and power grids operators to simultaneously optimize their performance. High-level dynamics of building clusters and building-integrated power networks with algebraic equations are presented--both operating at different time-scales. A model predictive control (MPC)-based algorithm that formulates the BtG integration and accounts for the time-scale discrepancy is developed. The formulation captures dynamic and algebraic power flow constraints of power networks and is shown to be numerically advantageous, as a high-fidelity discretization is used. Case studies demonstrate building energy savings and significant frequency regulation, while these findings carry over in network simulations with nonlinear power flows and mismatch in load predictions, weather forecasts, and building model parameters.
Pub.: 18 Jun '17, Pinned: 29 Jun '17
Abstract: User participation is a key element in decision processes concerning the accommodation of dynamic organisations such as schools. This article addresses the discrepancy between the perspectives of the architects and engineers, as the makers of school buildings, and school management, teachers and students, as the users of the buildings, and proposes that productive and efficient participatory design of school buildings requires appropriate information tools. Visual information technology tools, such as Building Information Modelling (BIM), already used in interaction between architects, engineers, consultants, etc., are proposed to support school managers, teachers and students in participating in all stages of the life cycle of their school building. The proposed use of BIM is compared to a retrospective analysis of a Dutch school which realised a completely new secondary education building. The article concludes with recommendations to increase the impact of visual information technology tools such as BIM in the design of school buildings in Europe and beyond.
Pub.: 23 Jun '17, Pinned: 29 Jun '17
Abstract: The use of immersive virtual reality as a research tool is rapidly increasing in numerous scientific disciplines. By combining ecological validity with strict experimental control, immersive virtual reality provides the potential to develop and test scientific theories in rich environments that closely resemble everyday settings. This article introduces the first standardized database of colored three-dimensional (3-D) objects that can be used in virtual reality and augmented reality research and applications. The 147 objects have been normed for name agreement, image agreement, familiarity, visual complexity, and corresponding lexical characteristics of the modal object names. The availability of standardized 3-D objects for virtual reality research is important, because reaching valid theoretical conclusions hinges critically on the use of well-controlled experimental stimuli. Sharing standardized 3-D objects across different virtual reality labs will allow for science to move forward more quickly.
Pub.: 25 Jun '17, Pinned: 29 Jun '17