Suspensions of rod-like colloids and a depleting agent under confinement

in Journal of Physics : Condensed Matter (2008), 20(40),

Suspicious Electric Consumption Detection Based on Multi-Profiling Using Live Machine Learning

in 2015 IEEE International Conference on Smart Grid Communications (SmartGridComm) (2015, November)

The transition from today’s electricity grid to the so-called smart grid relies heavily on the usage of modern information and communication technology to enable advanced features like two-way ... [more ▼]

The transition from today’s electricity grid to the so-called smart grid relies heavily on the usage of modern information and communication technology to enable advanced features like two-way communication, an automated control of devices, and automated meter reading. The digital backbone of the smart grid opens the door for advanced collecting, monitoring, and processing of customers’ energy consumption data. One promising approach is the automatic detection of suspicious consumption values, e.g., due to physically or digitally manipulated data or damaged devices. However, detecting suspicious values in the amount of meter data is challenging, especially because electric consumption heavily depends on the context. For instance, a customers energy consumption profile may change during vacation or weekends compared to normal working days. In this paper we present an advanced software monitoring and alerting system for suspicious consumption value detection based on live machine learning techniques. Our proposed system continuously learns context-dependent consumption profiles of customers, e.g., daily, weekly, and monthly profiles, classifies them and selects the most appropriate one according to the context, like date and weather. By learning not just one but several profiles per customer and in addition taking context parameters into account, our approach can minimize false alerts (low false positive rate). We evaluate our approach in terms of performance (live detection) and accuracy based on a data set from our partner, Creos Luxembourg S.A., the electricity grid operator in Luxembourg. [less ▲]

Sustainability and Circular Economy in Learning Factories – Case Studies

in SSRN (2022, April 11)

Since the mitigation of climate change is one of the biggest challenges to face on a global scale, the topic has become more relevant also in industrial context. Learning factories have proven to be ... [more ▼]

Since the mitigation of climate change is one of the biggest challenges to face on a global scale, the topic has become more relevant also in industrial context. Learning factories have proven to be suitable environments to address and convey competencies to tackle industrial challenges in an interactive way. Hence, several learning factories are already dealing with sustainability topics in various use cases. This paper strives to present a state of the art of sustainability and circular economy in learning factories. Therefore, a classification framework is developed based on the state of the art of several learning factories and existing literature regarding the topic. This framework is then used to systematically describe the different activities regarding sustainability and circular economy that are currently ongoing in learning factories worldwide. This can be used to get an idea about the different aspects of the topic and how to address them, but furthermore also offers assistance to identify “blind spots” which could and should be addressed in learning factories in the future. [less ▲]

A Sustainability Crisis Makes Bad Law! - Towards Sandbox Thinking in EU Sustainable Finance Law and Regulation

E-print/Working paper (2022)

The Sustainability Imperative in Information Systems Research

in Communications of the Association for Information Systems (2017), 40(3), 40--52

Sustainability indicators

in König, Ariane; Ravetz, Jerome (Eds.) Sustainability Science (2018)

In our science-based society, we are surrounded by indicators. At every turn they tell us where we are, how we compare, where we should or should not be and whether we are moving towards or away from the ... [more ▼]

In our science-based society, we are surrounded by indicators. At every turn they tell us where we are, how we compare, where we should or should not be and whether we are moving towards or away from the desired or undesired state. Wealth and health of individuals, communities and natural systems are conveyed by indicators. Their representations include numbers, graphs, dials, letters, symbols and colours. And they vary in reliability, from the gauge that says your car’s engine temperature is ‘normal’, to the prediction that next month’s weather temperatures will be ‘normal’. They are one of the main channels whereby the citizen interacts with science. How can the citizen make good decisions in the midst of this jungle of indicators? The citizen might well ask, “What do I really know, when I’m told that I have an Ecological Footprint of 4.1 global hectares? And then what should I do about it?” [less ▲]

Sustainability of biomass resources for the use in decentralized biomass energy systems

Doctoral thesis (2010)

Sustainability reporting out of a prisoner’s dilemma

in Comby, J.; Eames, K.; Guiherý, L. (Eds.) et al Developing Sustainability (2013)

Listed firms increasingly strive for a sustainable appearance, which has made sustainability reporting very popular in recent years. This would be completely rational if sustainability reporting could ... [more ▼]

Listed firms increasingly strive for a sustainable appearance, which has made sustainability reporting very popular in recent years. This would be completely rational if sustainability reporting could enhance shareholder value. This paper investigates from a theoretical perspective which conditions are sufficient for the individual and collective rationality of sustainability reporting. The Analysis leads to the conclusion that, due to the competition between firms, sustainability reporting generates a separation equilibrium as long as the reporting costs are proportional to the reported level and the marginal costs of reporting differ with the true level of sustainability. Although it might be preferable, a pooling equilibrium with no sustainability reporting cannot be sustained, which is a result of the so-called prisoner’s dilemma that firms find themselves caught within. The most important practical implication of the model is a call for external auditing with high assurance levels to ensure an efficient separation of highly and weakly sustainable firms [less ▲]

Sustainability science as a transformative social learning process

in König, Ariane (Ed.) Sustainability science: Key issues (2018)

Sustainability – The travelling empty-master-signifier

Scientific Conference (2015, April)