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This paper questions the sizing standardization of small scale energy storage systems in a context of high penetration of renewable energies and non-deterministic load within the power grid. The future electrical grid is more precarious than the classic one by many reasons, inter alia, abrupt meteorological variations are hard to predict. Therefore, the geographic expansion beside high penetration...
The increased penetration of renewables in the power generation mix increases the uncertainty and variability in power system scheduling and operation. Variability and uncertainty are met in different volumes and in different time scales. To face these challenges, system operators schedule increased reserves and use unit commitment models with sub-hourly intervals. The authors have presented in recent...
Uncertainty is intrinsic in Cyber-Physical Systems (CPSs) due to novel interactions of embedded systems, networking equipment, cloud infrastructures and humans. Our daily life has been increasing dependent on CPS applications in safety/mission critical domains such as healthcare, aerospace, oil/gas and maritime. For example, the National Institute of Standards and Technology (NIST) reported that direct...
This paper presents an algorithm based on ecological models of foraging and that uses uncertainty in scientific observations made by the robot to value future actions. It is the hypothesis of this work that the foraging strategy will be an improvement over strategies based on principles from the design of experiments literature for small budget sizes. The experiment in this paper shows that for small...
This paper proposes the analysis of probabilistic equilibrium models of electricity markets by means of point estimated methods. We follow a model to address generation companies' strategic analysis based on a conjectured price-response market equilibrium representation. Furthermore, we consider uncertainty in power system demands. The resulting probabilistic equilibrium problem is then solved using...
We present a visual analytics system that supports an uncertainty-aware analysis of static and dynamic attributes of biochemical reaction networks (BRNs). These are often described by mathematical models, such as ordinary differential equations (ODEs), which enable the integration of a multitude of different data and data types using parameter estimation. Due to the limited amount of data, parameter...
In this paper we describe a method of using interval valued survey responses from multiple experts on multiple occassions to produce General Type-2 fuzzy sets. In the method we propose, both the intra- and inter-person variability are modelled, with no loss of information. The resulting sets are completely determined by the data, providing an accurate representation (in terms of being defined solely...
Based on characteristics of lake eutrophication, total phosphorus (TP), total nitrogen (TN), chemical oxygen demand(CODMn), secchi disk depth (SD) and biomass (BIO) were chosen as evaluation indexes. Aiming at the problem being too complex for the present evaluation methods on lake eutrophication, a new method, improved set pair analysis model was used to solve the complicated non-linear relation...
Several pressures have led to unprecedented corporate interest in "carbon footprinting" or life cycle assessment (LCA) of products. These pressures include historically high energy prices, climate change regulation, corporate sustainability efforts, and announcements from several major retailers that environmental data will be required from suppliers. This work discusses the particular challenges...
Models and simulations (M&S) will be employed to support important design decisions and verification of system requirements in the development of NASA's Orion Crew Exploration Vehicle. Most simulations are implemented in software. For developed software, NASA's software engineering procedural guideline NPR 7150.2 and safety standard NASA-STD-8719.13B apply. Recognizing the need for critical M&S...
The Internet has grown out of its original scope and scale while its importance for the society has increased. This has raised considerable uncertainties and concerns about the future evolution. We apply Schoemakerpsilas scenario planning method to identify and analyze the key trends and uncertainties and to create four alternative evolution scenarios for the Internet. The scenarios reveal that the...
This paper discusses the manner in which cinema buildings of the 20th century represent both an important physical record of society, and a challenge in terms of representing a complex range of historical, cultural, economic and physical data sets.The paper provides an overview of visualisation techniques which are appropriate to the subject, and provides a case study taken from the city of Aberdeen...
With an increased focus on national security and public safety communications, the US Congress revisited its plan to reclaim television broadcaster frequencies to be reallocated and auctioned by the FCC and it specifically allocated a portion of that spectrum for use by public safety. The FCC was charged with the duty of auctioning this spectrum and licensing it to create a public safety network....
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