42 research outputs found
Streamlining Energy Transition Scenarios to Key Policy Decisions
Uncertainties surrounding the energy transition often lead modelers to
present large sets of scenarios that are challenging for policymakers to
interpret and act upon. An alternative approach is to define a few qualitative
storylines from stakeholder discussions, which can be affected by biases and
infeasibilities. Leveraging decision trees, a popular machine-learning
technique, we derive interpretable storylines from many quantitative scenarios
and show how the key decisions in the energy transition are interlinked.
Specifically, our results demonstrate that choosing a high deployment of
renewables and sector coupling makes global decarbonization scenarios robust
against uncertainties in climate sensitivity and demand. Also, the energy
transition to a fossil-free Europe is primarily determined by choices on the
roles of bioenergy, storage, and heat electrification. Our transferrable
approach translates vast energy model results into a small set of critical
decisions, guiding decision-makers in prioritizing the key factors that will
shape the energy transition
Knowledge-Based Synthesis of Distributed Systems Using Event Structures
To produce a program guaranteed to satisfy a given specification one can
synthesize it from a formal constructive proof that a computation satisfying
that specification exists. This process is particularly effective if the
specifications are written in a high-level language that makes it easy for
designers to specify their goals. We consider a high-level specification
language that results from adding knowledge to a fragment of Nuprl specifically
tailored for specifying distributed protocols, called event theory. We then
show how high-level knowledge-based programs can be synthesized from the
knowledge-based specifications using a proof development system such as Nuprl.
Methods of Halpern and Zuck then apply to convert these knowledge-based
protocols to ordinary protocols. These methods can be expressed as heuristic
transformation tactics in Nuprl.Comment: A preliminary version of this paper appeared in Proceedings of the
11th International Conference on Logic for Programming, Artificial
Intelligence, and Reasoning LPAR 2004, pp. 449-46
Ueber einige wichtige Fortschritte welche im Maschinenwesen seit dem Anfang dieses Jahrhunderts, besonders in England, gemacht worden sind, und ĂĽber das langsame FortrĂĽcken unsrer Litteratur in diesem Fache
in einer öffentlichen Versammlung der churfürstl. bairischen Akademie der Wissenschaften an ihrer Stiftungsfeyer den 28 März abgelesen von Joseph Baade
Huskisson und die Eisenbahnen : noch ein Wort zu seiner Zeit fĂĽr eine gute Sache
von Joseph von Baade
Beschreibung und Theorie des englischen Cylinder-Gebläses : nebst einigen Vorschlägen zur Verbesserung dieser Maschine
von Joseph Baade