C. Herrmann

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The visual observer performance for detecting low-contrast patterns by employing both the receiver operating characteristic (ROC) and the 9-alternative forced choice (9-AFC) method is investigated. For each observer and each experimental technique, the results were reproducible with respect to a repeated observation. When the results of different observers(More)
Shortening chopping length at harvest of biogas crops is a basic method of mechanical pretreatment that potentially affects subsequent conservation and biogas production processes. The objective of this study was to assess the influence of a wider range of particle size distributions achieved by laboratory chopping and of practice-oriented short and very(More)
Presented in this paper is a study of the biocompatibility of an atomic layer-deposited (ALD) alumina (Al2O3) thin film and an ALD hydrophobic coating on standard glass cover slips. The pure ALD alumina coating exhibited a water contact angle of 55 degrees +/- 5 degrees attributed, in part, to a high concentration of -OH groups on the surface. In contrast,(More)
Atomic layer deposition (ALD) was used to deposit an alternative dielectric barrier layer for use in radio frequency microelectromechanical systems (rf MEMS). The layer is an alloy mixture of Al 2 O 3 and ZnO and is proposed for use as charge dissipative layers in which the dielectric constant is significant enough to provide a large down-state capacitance(More)
Legal notice Neither the European Commission nor any person acting on behalf of the Commission is responsible for the use which might be made of the following information. Abstract The first Background paper of the Electronic Payment Systems Observatory (ePSO) identifies the strategic and technical issues that will be discussed in the ePSO Forum – an online(More)
Researchers at AAAS and BSCS have developed a six-week unit that aims to help middle school students learn important chemistry ideas that can be used to explain growth and repair in animals and plants. By integrating core physical and life science ideas and engaging students in the science practices of modeling and constructing explanations, the unit is(More)
Reducing chopping length for biogas crop harvesting is a pretreatment method to support the processes of ensiling and methane formation, yet it also increases expenditures at harvest. To assess environmental performance and economic viability, the effects of reducing chopping lengths from common to very short settings on energy balance, greenhouse gas(More)
Ab s tract Due to the complexity of today's systems, prototyping by simulation must be based on simulation-engine-like performance. It is proved by implementations that compiler driven strategy is the best approach for high-performance simulation engines. However, proponents of the table-driven strategy for simulation engines claim that concerning timing(More)
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