132 research outputs found
De bereiding van maleïnezuur anhydride
No full textDocument(en) uit de collectie Chemische ProcestechnologieDelftChemTechApplied Science
Measurements and interpretations of dynamic loads on bridges. Eurocode 3 Part 2 - Steel Bridges- Design of Orthotropic Steel Decks: Technical report, Period January 1 - April 30 1996
No full textCivil Engineering and GeosciencesStructural Engineerin
Bepaling van een verkeersbelastingmodel voor de berekening van verkeersbruggen
No full textCivil Engineering and GeosciencesStructural Engineerin
A design-for-test structure for optimising analogue and mixed signal IC test
No full textA new Design-for-Test (DfT) structure based on a configurable operational amplifier, referred to as a “swap amp” is presented that allows access to embedded analogue blocks. The structure has minimal impact on circuit performance and has been evaluated on a custom designed Phase Locked Loop (PLL) structure. A test chip containing faulty and fault free versions of this PLL structure, with and without DfT modifications, has been fabricated and an evaluation of this DfT scheme based on the swap-amp structure carried out. It is shown that for embedded analogue blocks, the DfT strategy can not only improve and simplify analogue and mixed signal IC test, but can also be used for diagnostics
A new estimation method for the intrinsic thermal conductivity of nonmetallic compounds; A case study for MgSiN2, AlN and beta-Si3N4 ceramics
No full textA new method for estimating the maximum achievable thermal conductivity of non-electrically conducting materials is presented. The method is based on temperature dependent thermal diffusivity data using a linear extrapolation method enabling discrimination between phonon-phonon and phonon-defect scattering. The thermal conductivities estimated in this way for MgSiN2, AlN and -Si3N4 ceramics at 300 K equal 28, 200 and 105 W m−1 K−1, respectively in favourable agreement with the highest experimental values of 23, 266 and 106¿122 W m−1 K−1. This suggests the general applicability of the proposed estimation method for non-metallic compounds. It is expected that when optic phonons contribute to the heat conduction (as is the case for AlN) the intrinsic thermal conductivity at lower temperatures (e.g. 300 K) is underestimated. However, the reliability and accuracy of the presented ¿easy to use¿ estimation method seems to be much better than several other estimation methods. Furthermore the needed input for this method can provide information about which processing parameters should be optimised to obtain the highest thermal conductivity
Two competing linear models for flexible robots: comparison, experimental validation, and refinement
No full textMeasurements and Interpretation of dynamic loads in bridges: Phase 3 : Fatigue behaviour of orthotropic steel decks - Common synthesis report
No full textCivil Engineering and GeosciencesStructural Engineerin
Efficient simulation framework for circuit design with future device technologies [MOS structures]
No full text- …
