Lokalisierungsverfahren (2008)
Strang, Thomas, Schubert, Frank, Thölert, Steffen, Oberweis, Rainer, Angermann, Michael, Belabbas, Boubeker, ...
Dieses Studie dokumentiert derzeitige und zukünftige Lokalisierungssysteme und deren vielfältige Einsatzmöglichkeiten. Es stellt dabei eine auch für den Nicht-Fachmann verständliche Einführung...
Radio Interference Effects on Commercial GNSS Receivers Using Measured Data (2008)
Jost, Thomas, Weber, Christian, Schandorf, Cecil, Denks, Holmer, Meurer, Michael
Nowadays more and more services rely on the positioning and time synchronization provided by the U.S. Global Positioning System (GPS) which is worldwide available. The requirements on accuracy are...
A matrix representation of the CPM/PDD approach as a means for change impact analysis (2008)
Köhler, Christian, Conrad, Jan, Wanke, Sören, Weber, Christian
Engineering changes occur in every life cycle phase of a product and in every step of the product development process. Today, the importance of engineering change management as a part of product...
Classification of tools and methods for knowledge management in product development (2008)
Kaiser, Jan-Martin, Conrad, Jan, Köhler, Christian, Wanke, Sören, Weber, Christian
Der Fortschritt lebt vom Austausch des Wissens (Progress is based on the exchange of knowledge - Albert Einstein), is only one of many famous sayings that underline the importance of knowledge....
What is design knowledge from the viewpoint of CPM/PDD? (2008)
Conrad, Jan, Köhler, Christian, Wanke, Sören, Weber, Christian
Knowledge is a very common term in engineering design and also extensively discussed. There are many theories describing what knowledge is and how it should be managed in engineering design. But no...
Bernhagen, Jurgen, Krohn, Regina, Lue, Hongqi, Gregory, J. L., Zernecke, Alma, Koenen, Rory R., ...
© 2007 Nature Publishing Group
Deubel, Till, Conrad, Jan, Köhler, Christian, Wanke, Sören, Weber, Christian
The change process is one of the most critical tasks of the product development process. Misinterpretation or lack of knowledge about impacts or risks of changes can cause serious disadvantages to...
Comparison of knowledge representation in PDM and by semantic networks (2007)
Conrad, Jan, Deubel, Till, Köhler, Christian, Wanke, Sören, Weber, Christian
´Nowadays, computer-aided tools have enabled the creation of electronic design documents on an unprecedented scale, while determining and finding what can be reused for a new design is like...
Bernhagen, Jurgen, Krohn, Regina, Lue, Hongqi, Gregory, J. L., Zernecke, Alma, Koenen, Rory R., ...
© 2007 Nature Publishing Group
Blindt, Rüdiger, Vogt, Felix, Astafieva, Irina, Fach, Christian, Hristov, Mihail, Krott, Nicole, ...
OBJECTIVES: Novel stents loaded with an integrin-binding cyclic Arg-Gly-Asp peptide (cRGD) were analyzed for their potential to limit coronary neointima formation and to accelerate endothelialization...
Innovative lightweight aircraft design : a student competition (2006)
Deubel, Till, Köhler, Christian, Wanke, Sören, Weber, Christian
Education in engineering design is a challenging task. On the one hand the students have to get a broad theoretical basis and engineering expertise, on the other hand they have to learn how to apply...
Modelling and manufacturing of a dragonfly wing as basis for bionic research (2006)
Deubel, Till, Wanke, Sören, Weber, Christian, Wedekind, Frank
Working principles in nature have been optimised by evolution for millions of years. Today we try to understand how these principles work and how they could be used in technical applications....
Documentation and enhancement of the traceability of finite-element-analysis (2005)
Maus, Rüdiger, Weber, Christian
The approach presented in this paper is based on the CAE-environment of the product development process. Simulations and results often are safety-relevant and thus have to be traceable even years...
Requirement- and cost-driven product development process (2005)
Deubel, Till, Steinbach, Michael, Weber, Christian
This paper presents an approach, which enables a cost and requirement driven control of the design process. It is based on the concept of Property-Driven Development (PDD) [WeWD-03]. Integrated in...
Bremen, Univ., Diss., 2004.
Jostarndt, K., Rubic, T., Kuhn, H., Anthonsen, M.W., Andera, L., Gellert, Nina, ...
Peroxisome proliferator-activated receptor-³ (PPAR³) has been suggested to upregulate CD36. Since free oxidized polyunsaturated fatty acids are PPAR³ ligands, we studied the effects of LDL...
Erl, Wolfgang, Weber, Christian, Zernecke, Alma, Neuzil, Jiri, Vosseler, Claudia A., Kim, Hyo Jung, ...
Assembly-oriented design in automotive engineering (2004)
Vielhaber, Michael, Burr, Holger, Deubel, Till, Weber, Christian, Haasis, Siegmar
To be competitive on the global market, carmakers have cut lead times in passenger car development to the bone. At the same time both the product complexity and the customer´s demands with regard to...
CAx/EDM integration : enabler for methodical benefits in the design process (2004)
Burr, Holger, Vielhaber, Michael, Deubel, Till, Weber, Christian, Haasis, Siegmar
Over the past decade, the development of engineering information technology has led to a rapidly increasing number of process-supporting engineering systems. At the same time, substantial advances in...
Modelling of product-service systems (PSS) based on the PDD approach (2004)
Weber, Christian, Steinbach, Michael, Botta, Christian, Deubel, Till
To achieve a sustainable competitive advantage, it is necessary to minimise the development time of new products. At the same time, any new product must be a rather optimal compromise between...
New ideas for knowledge management in product development projects (2004)
Weber, Christian, Pohl, Martin, Steinbach, Michael
Due to their high complexity, product development processes should be expected to be a highly rewarding field for the application of knowledge management systems. Nonetheless, such systems are rarely...
Properties and characteristics of product-service systems : an integrated view (2004)
Weber, Christian, Steinbach, Michael, Botta, Christian
In the following paper, an approach for a consistent classification of the characteristics and the properties both of services and material products is shown. This could be a starting point for a...
Anforderungs- und kostengetriebene Steuerung des Produktentwicklungsprozesses (2004)
Deubel, Till, Steinbach, Michael, Weber, Christian
Dieser Beitrag stellt einen Ansatz vor, der auf Basis des Konzeptes des Property-Driven Development/Design (PDD) eine anforderungs- und kostengetriebene Steuerung des Produktentwicklungsprozesses...
Buss, Joan L., Neuzil, Jiri, Gellert, Nina, Weber, Christian, Ponka, Prem
Analogs of pyridoxal isonicotinoyl hydrazone (PIH) are of interest as iron chelators for the treatment of secondary iron overload and cancer. PIH, salicylaldehyde isonicotinoyl hydrazone (SIH), and...
Weber, Tobias, Dalen, Helge, Andera, Ladislav, Negre-Salvayre, Anne, Auge, Nathalie, Sticha, Martin, ...
Challenges for CAx and EDM in an international automotive company (2003)
Burr, Holger, Deubel, Till, Vielhaber, Michael, Haasis, Siegmar, Weber, Christian
In design and manufacturing of passenger cars, changes in processes and tools pose new challenges for the management of engineering data. In this paper, the status quo, challenges, and developments...
New theory-based concepts for PDM and PLM (2003)
Weber, Christian, Deubel, Till
The objective of this paper is to discuss future developments and potentials for Product Data Management (PDM) and Product Lifecycle Management (PLM) systems, based on a new theory-based approach to...
A different view on PDM and its future potentials (2002)
Weber, Christian, Werner, Horst, Deubel, Till
The objective of this paper is to re-conceive the nature and development potentials of PDM-systems based on a new approach to design theory called ´Property-Driven Development/Design´ (PDD) which...
Weber, Christian, Pohl, Martin, Steinbach, Michael, Botta, Christian
Die klassischen Produktentwicklungsmethoden beschäftigen sich mit Produktmodellen und Verfahren bzw. Prozessmodellen zur Erstellung von Sachleistungen (technischen Produkten im klassischen Sinne)....
Hochvariable Verbundwerkstoffe in der Natur am Beispiel der Arthropodenkutikula (2001)
Weich, Isabell, Weber, Christian, Kesel, Antonia B., Werner, Horst
Die Kutikula, das Außenskelett der Arthropoden (Krebse, Spinnen, Insekten), ist ein sehr komplexer Faser-Verbund-Werkstoff (FVW). Die Vielzahl an Variationsmöglichkeiten, die ein FVW bietet, werden...
Weber, Christian, Werner, Horst
Bis heute gibt es in der ´klassischen´ Konstruktionsmethodik einen Bruch zwischen den relativ stark formalisierten frühen Phasen der Produktentwicklung und den Aktivitäten beim Entwerfen und...
Weber, Christian, Werner, Horst
In diesem Beitrag wird ein neuartiger Ansatz zur Modellierung von Produkten und darauf aufbauend, aber hier nicht vertieft betrachtet von Produktentwicklungsprozessen vorgestellt. Dieser wird...
KUE-online - a data-management-system supporting the handling of design exercises (2000)
Muth, Michael, Weber, Christian
This contribution shows a way to introduce topics like CAD (Computer Aided Design) and EDM/PDM (Engineering/Product Data Management) into the lecture courses within the framework of the studies of...
Problem-adapted mesh generation with FEM-features (2000)
Werner, Horst, Weber, Christian, Schilke, Martin
Today automatic meshing of CAD geometry is the most common method of FEM mesh generation. However, to get results of acceptable accuracy with universal meshing algorithms it is necessary to use...
Weber, Christian, Werner, Horst
Softwareunternehmen und Forschnugsinstitute arbeiten an der Integration neuer Funktionalitäten in CAx-Systeme, insbesondere der Verarbeitung nicht-geometrischer Eigenschaften. Der derzeit übliche...
Representing engineering-knowledge using multimedia (1999)
Muth, Michael, Weber, Christian
This issue deals with the representation, distribution and re-use of knowledge in computeraided engineering processes. This is still is a great problem especially in the context of distributed...
Improving computer aided tolerancing by using feature technology (1998)
Weber, Christian, Thome, Oliver, Britten, Werner
The application of feature technology in the field of Computer Aided Tolerancing (CAT) enhances simultaneous engineering during the product development process. The combination of micro-geometrical,...
Werner, Horst, Weber, Christian
Ein grundlegendes Problem in der rechnerunterstützten Konstruktion ist das Fehlen eines zufriedenstellenden Produktmodells. Durch Verwendung eines objektorientierten Informationsmodells läßt sich...
[Mikrofiche-Ausg.].
Functional modelling using an object-oriented design system (1997)
Werner, Horst, Muth, Michael, Weber, Christian
A significant progress in the development of CAD-systems was the extension to functionalities handling more than pure geometry (such as points, edges, surfaces and bodies), i.e. data concerning the...
Morphologische Veränderungen bei Gewebe-pO₂-Messung mit polarographischen Sauerstoffsonden / (1996)
Thesis (doctoral)--Medizinische Universität zu Lübeck, 1996.
Thesis (doctoral)--Ludwig-Maximilians-Universität zu München, 1994.
Köln, Univ., Diss. : 1994.
Ilmenau, Techn. Hochsch., Diss. A, 1984 (Nicht f.d. Austausch).
Aus: Archives of Virology. 77. 1983, S. 271 - 276 u.d.T.: Weber, C., Liliana Martínez Peralta, F. Lehmann-Grube: Persistent infection of cultivated cells with lymphocytic choriomeningitis virus
Leipzig, Univ., Diss. A, 1981 (Nicht f.d. Austausch).
Freiburg (Breisgau), Univ., Med. Fak., Diss. 1973. (Nicht f. d. Austausch.).
Ueber den Synachten-Kurztest / (1969)
Thesis (doctoral)--Universität Basel, 1969.
Versuche zur Synthese des Lycopodins / (1966)
Thesis (doctoral)--Technische Universität Berlin, 1996.
Did Pareto discover income and substitution effects? On an interpretation suggested by Hutchison
Terence Hutchison (1953) has argued that in his Manual of Political Economy Vilfredo Pareto provided a verbal, non-mathematical description of income and substitution effects. Hutchison's claim on...
Linearity, Slutsky symmetry, and a conjecture of Hicks
Hicks (1956) conjectured that Slutsky symmetry should hold for discrete as well as infinitesimal price changes if demand functions are globally linear. This paper proves this conjecture using the LES...
Quasi-linear peferences with Auspitz-Lieben-Pareto complementarity
I show that if preferences are quasi-linear (non-linear in goods x1, …, xn but linear in xn+1) and the sub-utility function defined over [x1, …, xn] is strongly concave and exhibits...