An analysis methodology for failure in postbuckling skin-stiffener interfaces (2008)
Orifici, Adrian, Thomson, R.S., Herszberg, I., Weller, T., Degenhardt, Richard, Bayandor, J.
Blade-stiffened structures have the potential to produce highly efficient structures, particularly when the large strength reserves available after structural buckling, in the postbuckling range, are...
SIMULATION OF A 915 MHz RECEIVER USING THE HP ADVANCED DESIGN SYSTEM TM (2007)
E. Benabe, T. Weller, P. Flikkema, L. Dunleavy
software is presented in this paper. The receiver subsystem includes input filtering and amplification, and a single down-conversion stage to a 70 MHz IF frequency. In order to demonstrate some...
FDTD MODELING OF CERAMIC MULTI-LAYER CAPACITORS USING LUMPED EQUIVALENT MODELS (2007)
T. Weller, Nihad Dib, B. Lakshminarayanan
ABSTRACT- This paper presents results on numerical simulation of ceramic, multilayer capacitors (CMC) using the Finite Difference Time Domain (FDTD) technique. An efficient approach is demonstrated...
WIRELESS AND MICROWAVE EDUCATION: FROM CIRCUITS TO SYSTEMS (2007)
Abstract- An innovative program is described that aims to meet the rapidly evolving demands of contemporary wireless education. Today’s wireless engineers must face integrative systems-to-device...
SUBSTRATE-DEPENDENT AIR-WOUND INDUCTOR MODEL IN THE DC-4 GHZ RANGE (2007)
E. Benabe, H. Gordon, T. Weller
Abstract- This paper describes the development of an equivalent circuit model for air coil inductors in the DC-4 GHz frequency range which includes substrate-dependent characteristics. The presented...
Sutherland, M., Doiron-Leyraud, N., Taillefer, L., Weller, T., Ellerby, M., Saxema, S.S.
We report measurements of the in-plane electrical resistivity P and thermal conductivity K of the intercalated graphite superconductor C6Yb down to temperatures as low as Tc/100. When a field is...
Finite element modelling of impact on preloaded composite panels (2006)
Mikkor, K, Thomson, R, Herzberg, I, Weller, T, Mouritz, A
Composite aircraft structures are susceptible to impact damage during manufacture, maintenance and in-flight. Low energy impact damage is often internal and invisible, but can significantly reduce...
Finite element modelling of impact on preloaded composite panels (2006)
Mikkor, K, Thomson, R, Herzberg, I, Weller, T, Mouritz, A
Composite aircraft structures are susceptible to impact damage during manufacture, maintenance and in-flight. Low energy impact damage is often internal and invisible, but can significantly reduce...
A coplanar waveguide (CPW) single-pole double-throw (SPDT) X-band RF MEMS switch that can be actuated between states by applying a single voltage is introduced. Since a signal can be transmitted to...
Zimmermann, R., Masiero, E., Ghilai, G., Bisagni, C., Rikards, R., Reimerdes, H.-G., ...
The European Commission is funding within its 5th Framework Programme the project POSICOSS, which copes with the demand to design fibre composite fuselage structures for postbuckling under ultimate...
Medarpa - a medical augmented reality system for minimal-invasive interventions (2003)
Schnaider, M., Schwald, B., Seibert, H., Weller, T.
This paper presents an approach to use a semitransparent display as a kind of window into a patient in the context of medical Augmented Reality (AR) applications. Besides the presentation of the...
Durability under Repeated Buckling of Stiffened Shear Panels, (2002)
Kollet,M., Weller,T., Libai,A., Singer,J.
An experimental investigation was carried out on the durability of thin webbed beams subjected to repeated shear bucklings. Although the repeated loading exceeded the initial buckling load several...
Medarpa - Ein Augmented Reality System für Minimal-Invasive Interventionen (2002)
Schnaider, M., Seibert, H., Schwald, B., Weller, T., Wesarg, S., Zogal, P.
Minimal-invasive Operationstechniken erfreuen sich in den letzten Jahren einer zunehmenden Akzeptanz und Verbreitung. Sie bieten dem Patienten offensichtliche Vorteile wie ein geringes Trauma, kürze...
A flexible tracking concept applied to medical scenarios using an AR windows (2002)
Schwald, B., Seibert, H., Weller, T.
This paper presents an approach to use a semitransparent display as a kind of window into a patient in the context of medical Augmented Reality (AR) applications. Besides the presentation of the...
BUCKLING OF UNSTIFFENED CONICAL SHELLS UNDER COMBINED LOADING, (1998)
Berkovits,A., Singer,J., Weller,T.
An experimental program was conducted in order to determine the family of interaction curves for the buckling of unstiffened conical shells under combined axial compression, torsion, and external or...
Experimental Studies of Graphite-Epoxy and Boron-Epoxy Angle Ply Laminates in Shear, (1998)
This report describes and presents a test program carried out at NASA Langley Research Center aimed at defining the nonlinear/inelastic response under inplane shear of a large variety of 3M SP-286T3...
Experimental Studies of Graphite-Epoxy and Boron-Epoxy Angle Ply Laminates in Compression, (1998)
The present report describes and presents a test program carried out at NASA Langley Research Center aimed at studying the nonlinear/inelastic response under axial compression across a wide range of...
Scheduling Nonuniform Traffic In A Packet Switching System With Small Propagation Delay (1994)
A new model of nonuniform traffic is introduced for a single-hop packet switching system. This traffic model allows arbitrary traffic streams subject only to a constraint on the number of data...