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Two 1.8GHz CMOS VCOs, based on a diode-varicap and an MOS-varicap, respectively, have been designed in a 0.8µm digital CMOS process and tested. Although the tuning range is larger for the MOS-varicap VCO, the overall performance of the diode-varicap VCO is superior to that of the MOS-varicap VCO. The comparison might give a different result by adopting a CMOS process that allows for shorter minimu

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In this paper, the metastability of current-mode logic (CML) latches and flip-flops is studied in detail. Based on the results of this analysis, a behavioral model of bang-bang phase detectors (BBPDs) is proposed, which is able to reliably capture the critical deadzone effect. The impact of jitter and of process, voltage and temperature variations on the BBPD behavior is also investigated. The pro

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This paper aims to introduce and discuss a geometrically based model, the relative prominence model, which is inspired by Tversky's (1977) finding that a factor behind asymmetric similarity seems to be the "relative prominence". The model proposes that the experienced directed similarity from I to J is proportional to some symmetric similarity measure between I and J, and the quotient between the

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An overview of the ecclesiastical buildings in the period of queen Margrethe I in Scandinavia.

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Elevated moisture contents due to exposed weather conditions and ageing façade materials can often lead to degradation and increased risks for the building walls, but also affect the insulating properties of the materials, as thermal and hygric behaviour of building materials are closely interconnected. This paper presents the first results from a study of a 1950-ies multi-family building with a p

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The use of hygrothermal calculation tools for dimensional purposes in the design phase is common. However, used tools are usually not blindly verified in real, on-site conditions. This paper present a method for verification of hygrothermal calculation tools for real-life, situations. In the method calculations become carried out before the measurement results are known, i.e. by blind calculations