Werkwijze voor het vervaardigen van een chemische inrichting

Delft University of Technolog

Method of filling a well in a substrate

The invention relates to a method of filling a well including a channel in a substrate. In accordance with the invention liquid is applied on a substrate comprising a well on a position that does not coincide with the well, and the well after filling is sealed with a cover means, wherein liquid is applied on a position between the front of the cover means and the well that is not covered by the cover means, and with the aid of the cover means the liquid is pushed into the well.Applied Science

Produktie van aspartaam via onbeschermde koppeling van aspartaatzuur en L-phenylalaninemethylester, met behulp van elektrodialyse

DelftChemTechApplied Science

Reaction plate with slidable cover and method to use the same

The invention relates to device for carrying out a reaction, which device comprises a substrate (2) provided with a well (4) for carrying out the reaction, and a cover means (3). According to the invention the cover means (3) is provided with an aperture (5), which in a first position does not overlap the well (4), while in a second position overlapping the well at least partly. Such a device can be filled in a simple manner and evaporation of liquid from the well (4) is to a large extent prevented. The invention also relates to a method for carrying out a reaction in a device according to the inventionApplied Science

Influence of brick and mortar properties on bioreceptivity of masonry: Results from experimental research

The effect of mortar and brick properties on the growth of ivy-leaved toadflax (Cymbalaria muralis) and yellow corydalis (Pseudofumaria lutea) has been investigated in laboratory. Different mortar compositions were designed and tested in combination with two different bricks. Highly porous bricks and mortars showed good bioreceptivity; mortars with lime-trass and, in lower extent, those with natural hydraulic lime binder, gave the best results in terms of bioreceptivity. The addition of vermiculite to the mortar was beneficial for plant growth. The brick-mortar combinations most favourable for plant growth were those with estimated low compressive and flexural bond strength values. Proposals are advanced for obtaining a compromise between mechanical strength and bioreceptivity.Heritage & TechnologyDesign of ConstrutionApplied Mechanic

Optimisation-based alignment of wide-band integrated superconducting spectrometers for submillimeter astronomy

Context. Integrated superconducting spectrometers (ISSs) for wide-band submillimeter (submm) astronomy use quasi-optical systems for coupling radiation from the telescope to the instrument. Misalignment in these systems is detrimental to the system performance. The common method of using an optical laser to align the quasi-optical components requires an accurate alignment of the laser to the submm beam from the instrument, which is not always guaranteed to a sufficient accuracy. Aims. We develop an alignment strategy for wide-band ISSs that directly uses the submm beam of the wide-band ISS. The strategy should be applicable in both telescope and laboratory environments. Moreover, the strategy should deliver similar quality of the alignment across the spectral range of the wide-band ISS. Methods. We measured the misalignment in a quasi-optical system operating at submm wavelengths using a novel phase and amplitude measurement scheme that is capable of simultaneously measuring the complex beam patterns of a direct-detecting ISS across a harmonic range of frequencies. The direct detection nature of the microwave kinetic inductance detectors in our device-under-test, DESHIMA 2.0, necessitates the use of this measurement scheme. Using geometrical optics, the measured misalignment, a mechanical hexapod, and an optimisation algorithm, we followed a numerical approach to optimise the positioning of corrective optics with respect to a given cost function. Laboratory measurements of the complex beam patterns were taken across a harmonic range between 205 and 391 GHz and were simulated through a model of the ASTE telescope in order to assess the performance of the optimisation at the ASTE telescope. Results. Laboratory measurements show that the optimised optical setup corrects for tilts and offsets of the submm beam. Moreover, we find that the simulated telescope aperture efficiency is increased across the frequency range of the ISS after the optimisation.ImPhys/Practicum supportTera-Hertz SensingEMSD EEMCS Project technicians 1Planetary Exploratio

Microarrays for biotechnology: The imaging challenge

Applied Science