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Many palaeoclimate records from the North Atlantic region show a pattern of rapid climate oscillations, the so-called Dansgaard-Oeschger events, with a quasi-periodicity of approximately 1,470 years for the late glacial period. Various hypotheses have been suggested to explain these rapid temperature shifts, including internal oscillations in the climate(More)
Implementation of smart grid provides an opportunity for concurrent implementation of nonintrusive appliance load monitoring (NIALM), which disaggregates the total household electricity data into data on individual appliances. This paper introduces a new disaggregation algorithm for NIALM based on a modified Viterbi algorithm. This modification takes(More)
High temporal and spatial variability is a key problem when quantifying methane emissions from soils. Whereas the spatial variability on the landscape scale has been investigated in di€erent studies, we investigated the spatial heterogeneity of CH4 production on 1 cm scale, as well as the role of organic material as a relevant factor. Undisturbed soil cores(More)
Coupling between groundwater and surface water at Lake Willersinnweiher, a gravel pit lake in the Upper Rhine Graben without any surface in- or outflow, was investigated using both a groundwater model and the tracers 18O and SF6. Based on groundwater modeling, recharge and discharge areas around the lake as well as the residence time of the lake water were(More)
Many buildings have a wide range of faults that increase energy consumption, but the national energy impact of specific faults has yet to be quantified. This paper reports the preliminary results of a study to quantify the national energy impact of building faults. Based on a detailed literature review, the authors identified thirteen key faults and(More)
hermal energy storage (TES) systems store a sizeable quantity of “cool” thermal energy that helps meet the cooling load of a building. A typical system consists of a large vessel filled with water or brine that may contain multiple small containers (e.g., encapsulated bricks or balls) filled with a material (such as water) whose liquid/solid phase-change(More)
Home energy management systems (HEMS) can reduce energy consumption while maintaining comfort. However, HEMS suffer from slow adoption and unproven energy savings. As intelligent automation and persuasive design features are increasingly added to HEM products, many research questions remain regarding their efficacy. We present the FRESH research platform to(More)
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