Schaumstrukturanalyse mit digitalen Bildverarbeitungsmethoden

The physical properties of polymer foams are essentially defined by the used materials and the inner cell structure of the foam. The foam structure itself is an important attribut of the product requirements for many technical foams. To control the quality of foams a reliable analysis method is essential. Characteristics which are determined are the cell density, the cell size and the area rate of the surface from the cells of a foam cut. For this analysis a system for optical cell analysis (OZELLA) was developed in this paper. The cells of the foam structure can be identified in a digital image, which has been taken with the flood light method, pre-processed by filters and followed by edge segmentation. The parameters for the segmentation filter, which can be edited by the user were optimised for inspection of a high band width of different foams. These parameters have been reduced to a minimum in order to enable the user to find with only a few iterations the suitable adjustment for the foam structure. The result can be checked with the overlay of the origin and the segmented image. (orig.)SIGLEAvailable from: http://sylvester.bth.rwth-aachen.de/dissertationen/2003/182/index.htm / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Simulation von Klopfvorgaengen mit einem zweidimensionalen mathematischen Modell

Copy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Instrumentierung eines 1000 m2 Solar Ponds und Stabilitaetsanalyse der Gradientenschicht

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Beeinflussung der Rissausbreitung durch Werkstoffschaedigung

TIB: DU 648 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Wiederholteilnutzung in integrierten Konstruktionssystemen am Beispiel des Werkzeugbaus

SIGLETIB: DW 740 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Grundlagen zur systematischen Reduzierung des Energie- und Materialeinsatzes

SIGLETIB Hannover: DR 4782 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

A conceptual design method for aircraft applying upper surface blowing

A conceptual design method for the application of Upper Surface Blowing to combat aircraft has been developed. Although, specifically addressed to combat aircraft or aircraft with low aspect ratios, aerodynamics of the method may be applied to other aircraft using Upper Surface Blowing. Even though the method is readily useable in its present form, there are areas where improvements can be made. These areas are addressed in the specific conclusions and recommendations. (orig.)SIGLEAvailable from TIB Hannover: DW 7473 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Experimentelle Untersuchungen des dreidimensionalen instationaeren Stroemungsverhaltens in einer Unterschall-Axialverdichterstufe

TIB Hannover: DR 3326 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Konstruktion, Fertigung und Test von pneumatisch angetriebenen Membranpumpen zur Herzunterstuetzung

With appendixSIGLEAvailable from TIB Hannover: DW 2911 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Herstellung und Weiterverarbeitung fluessigkristalliner Polymerblends

SIGLEAvailable from TIB Hannover: H92B659 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman