16 research outputs found
Real Time Assessment of Potable Water Quality in Distribution Network based on Low Cost Multi-Sensor Array
publishedVersionNivå
Towards a cyber-physical era: soft computing framework based multi-sensor array for water quality monitoring
publishedVersionNivå
Thermodynamics of Plasmaballs and Plasmarings in 3+1 Dimensions
We study localized plasma configurations in 3+1 dimensional massive field
theories obtained by Scherk-Schwarz compactification of 4+1 dimensional CFT to
predict the thermodynamic properties of localized blackholes and blackrings in
Scherk-Schwarz compactified using the AdS/CFT correspondence. We
present an exact solution to the relativistic Navier-Stokes equation in the
thin ring limit of the fluid configuration. We also perform a thorough
numerical analysis to obtain the thermodynamic properties of the most general
solution. Finally we compare our results with the recent proposal for the phase
diagram of blackholes in six flat dimensions and find some similarities but
other differences.Comment: 18 pages, 11 figures, latex; v2: Typos corrected and new references
adde
Cyber-Physical Systems for Smart Water Networks: A Review
There is a growing demand to equip Smart Water Networks (SWN) with advanced sensing and computation capabilities in order to detect anomalies and apply autonomous event-triggered control. Cyber-Physical Systems (CPSs) have emerged as an important research area capable of intelligently sensing the state of SWN and reacting autonomously in scenarios of unexpected crisis development. Through computational algorithms, CPSs can integrate physical components of SWN, such as sensors and actuators, and provide technological frameworks for data analytics, pertinent decision making, and control. The development of CPSs in SWN requires the collaboration of diverse scientific disciplines such as civil, hydraulics, electronics, environment, computer science, optimization, communication, and control theory. For efficient and successful deployment of CPS in SWN, there is a need for a common methodology in terms of design approaches that can involve various scientific disciplines. This paper reviews the state of the art, challenges, and opportunities for CPSs, that could be explored to design the intelligent sensing, communication, and control capabilities of CPS for SWN. In addition, we look at the challenges and solutions in developing a computational framework from the perspectives of machine learning, optimization, and control theory for SWN.acceptedVersio
Coastal Research Seen Through an Early Career Lens—A Perspective on Barriers to Interdisciplinarity in Norway
The value of interdisciplinarity for solving complex coastal problems is widely recognized. Many early career researchers (ECRs) therefore actively seek this type of collaboration through choice or necessity, for professional development or project funding. However, establishing and conducting interdisciplinary research collaborations as an ECR has many challenges. Here, we identify these challenges through the lens of ECRs working in different disciplines on a common ecosystem, the Norwegian Skagerrak coast. The most densely populated coastline in Norway, the Skagerrak coast, is experiencing a multitude of anthropogenic stressors including fishing, aquaculture, eutrophication, climate change, land runoff, development, and invasive species. The Skagerrak coastline has also been the focus of environmental science research for decades, much of which aims to inform management of these stressors. The region provides a fantastic opportunity for interdisciplinary collaboration, both within and beyond the environmental sciences. This perspective article identifies the barriers ECRs in Norway face in establishing interdisciplinary and collaborative research to inform management of coastal ecosystems, along with their root causes. We believe our discussion will be of broad interest to all research institutions who employ or educate ECRs (in Norway and worldwide), and to those who develop funding mechanisms for ECRs and interdisciplinary research.publishedVersio
Lumps of plasma in arbitrary dimensions
We use the AdS/CFT correspondence in a regime in which the field theory
reduces to fluid dynamics to construct an infinite class of new black objects
in Scherk-Schwarz compactified AdS(d+2) space. Our configurations are dual to
black objects that generalize black rings and have horizon topology S^(d-n) x
T^n, for n less than or equal to (d-1)/2. Locally our fluid configurations are
plasma sheets that curve around into tori whose radii are large compared to the
thickness of the sheets (the ratio of these radii constitutes a small parameter
that permits the perturbative construction of these configurations). These
toroidal configurations are stabilized by angular momentum. We study solutions
whose dual horizon topologies are S^3 x S^1, S^4 x S^1 and S^3 x T^2 in detail;
in particular we investigate the thermodynamic properties of these objects. We
also present a formal general construction of the most general stationary
configuration of fluids with boundaries that solve the d-dimensional
relativistic Navier-Stokes equation.Comment: 32 pages, 10 figures; v2: Some figures are modified and a few
references added
Real Time Assessment of Potable Water Quality in Distribution Network based on Low Cost Multi-Sensor Array
publishedVersionNivå
Towards a cyber-physical era: soft computing framework based multi-sensor array for water quality monitoring
New concepts and techniques are replacing traditional methods of water
quality parameter measurement systems. This paper introduces a cyber-physical
system (CPS) approach for water quality assessment in a distribution network.
Cyber-physical systems with embedded sensors, processors and actuators
can be designed to sense and interact with the water environment. The
proposed CPS is comprised of sensing framework integrated with five different
water quality parameter sensor nodes and soft computing framework for
computational modelling. Soft computing framework utilizes the applications
of Python for user interface and fuzzy sciences for decision making.
Introduction of multiple sensors in a water distribution network generates a huge
number of data matrices, which are sometimes highly complex, difficult to
understand and convoluted for effective decision making. Therefore, the
proposed system framework also intends to simplify the complexity of obtained
sensor data matrices and to support decision making for water engineers through
a soft computing framework. The target of this proposed research is to provide
a simple and efficient method to identify and detect presence of contamination
in a water distribution network using applications of CPS
Towards Cyber Physical Era: Soft Computing framework based Multi-Sensor Array for Water Quality Monitoring
"El empleo de nanopartículas de plata en biorreactores semiautomatizados mejorará la eficiencia en la tasa de multiplicación a través de la disminución en la contaminación del medio líquido y la formación de brotes de Vainilla
Micropropagar vainilla en Recipientes de Inmersión Temporal Automatizados (RITAs) empleando nanopartículas de plata.
Diseñar el sistema neumático para determinar el flujo de aire y unificar la inmersión en los biorreactores.
Evaluar el efecto de las nanopartículas de plata sobre el número de brotes por explante en V. planifolia cultivada en biorreactores.
Determinar la dosis óptima, tóxica y letal de nanopartículas de plata sobre la contaminación de la vainilla V. planifolia cultivada en biorreactores