Artificial test eyes for multimodal imaging

Artificial test eyes have been developed for a multimodal ophthalmic imaging platform. The test eyes can be used for alignment of different imaging modalities and for fluorescence channel performance testing. Different scattering and absorption characteristics can be realized in the artificial retina.

Real-time processing of multi-channel SAR data with GPUs

Angular illumination and truncation of three different integrating nephelometers: Implications for empirical, size-based corrections

Integrating nephelometers are widely used for monitoring and research applications related to air pollution and climate. Several commercial versions of the instrument are available and are in wide use in the community. This article reports on results from a calibration and intercomparison workshop where several units of the three most widely...

A critical evaluation of test patterns for EO system performance characterization

The traditional test pattern for end-to-end EO system performance testing in the laboratory has been the static 3- or 4-bar target. This choice was governed by linear systems approach. The introduction of under-sampled imagers such as IRFPAs (infrared focal plane array cameras) has challenged the testing community to develop an alternative test,...

Audi Duo demonstration project: Environmental comparision and user survey

This paper describes the results and conclusions of a methodology for the assessment of environmental performance. This methodology was applied to a demonstration project conducted in the Netherlands with 10 Audi Duo parallel hybrid vehicles. During the course of the project, the vehicles were driven by a wide range of users and user groups. By...

Towards a streamlined CDM process for solar home systems: emission reductions from implemented systems and development of standardised baselines

Opportunities to streamline the Clean Development Mechanism (CDM) processfor solar home systems are outlined. A streamlined CDM process would require standardised calculation of greenhouse gas emission reduction. The present report gives an overview of CO<sub>2</sub> emission reduction figures from 8 solar home system...

Het Audi Duo concept in de praktijk: milieuprestaties en de kansen en belemmeringen voor marktintroductie, bepaald in het Demonstratieproject Audi Duo

This report describes the methodology and results for an assessment of environmental performance of a parallel hybrid vehicle, as well as an investigation into user experiences that may promote or hinder market introduction of this type of car. A parallel hybrid vehicle is powered either by a combustion engine or by an electric engine. For the...

GASREIP: GASREIniging en Prime mover design: fase A: realisatie en beproeving van een basisconfiguratie ten behoeve van biomassa warmte-kracht koppeling

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Characterisation of PV modules of new generations: results of tests and simulations

PV modules of nine different types were tested during indoor and outdoormeasurements. The electronic and thermal properties of the modules were determined and in simulations the energy yield of these modules under typical Dutch meteorological circumstances was calculated. 2 refs.

Sonar Waveforms for Reverberation Rejection, Part II: Experimental results

The influence of the waveform of the transmitted signal on the signal to reverberation ratio of a moving sonar array is analysed on an experimental basis. Experiments were conducted during sea-trials in shallow water areas in September 98 and October 99. The aim of the trials was to compare the performance of three waveforms: frequency modulated...

TOD Predicts Target Acquisition Performance for Staring and Scanning Thermal Imagers

Identification and recognition performance for four staring and two scanning thermal imagers, were measured in an observer experiment using images that were collected during a NATO field trial in Nettuno, Italy, in 1998. The dataset allows validation of the MRTD and alternative sensor performance measures such as the TOD (Triangle Orientation...

Guidelines for accurate TOD measurement

The Triangle Orientation Discrimination (TOD) threshold is an alternative method to characterize electro-optical system performance. The method is based on an improved test pattern, a better-defined observer task and a solid psychophysical measurement procedure, and allows accurate and comparable results from different measuring teams. With the...

Opslag van thermische energie in een flexibele waterzak

Test methods for evaluating and comparing the performance of side impact barrier faces

Side-impact safety of passenger cars is assessed in Europe in a full-scale test using a moving barrier. The front of this barrier is deformable and represents the stiffness of an 'average' car. The EU Directive 96/27/EC on side impact protection has adopted the EEVC Side Impact Test Procedure, including the original performance specification for...

Hydrophobic treatment of concrete

As part of the maintenance policy of the Dutch Ministry of Transport, Civil Engineering Division, hydrophobic treatment of concrete was considered as an additional protective measure against penetration of aggressive substances, for instance deicing salts in bridge decks. A set of tests was designed to determine the performance of commercially...