All Outputs (1439)

Individual and collective choice: Parallel prospecting and mining in ants (2008)
Journal Article

Decision making is of crucial importance in the lives of both animals and humans. How decisions of group members scale up to group decisions is of great interest. Accordingly, we gave homeless ant colonies (n=67) in three experiments a choice between... Read More about Individual and collective choice: Parallel prospecting and mining in ants.

A generalised upper bound for the k-tuple domination number (2008)
Journal Article

In this paper, we provide an upper bound for the k-tuple domination number that generalises known upper bounds for the double and triple domination numbers. We prove that for any graph G,γ× k (G) ≤ frac(ln (δ - k + 2) + ln (∑m = 1k - 1 (k - m) over(d... Read More about A generalised upper bound for the k-tuple domination number.

Lot sizing and furnace scheduling in small foundries (2008)
Journal Article

A lot sizing and scheduling problem prevalent in small market-driven foundries is studied. There are two related decision levels: (1) the furnace scheduling of metal alloy production, and (2) moulding machine planning which specifies the type and siz... Read More about Lot sizing and furnace scheduling in small foundries.

An integrated queuing and multi-objective bed allocation model with application to a hospital in China (2008)
Journal Article

In this paper, a multi-objective decision aiding model is introduced for allocation of beds in a hospital. The model is based on queuing theory and goal programming (GP). Queuing theory is used to obtain some essential characteristics of access to va... Read More about An integrated queuing and multi-objective bed allocation model with application to a hospital in China.

A new method for evaluation of distribution system losses due to load unbalance (2008)
Journal Article

How experienced individuals contribute to an improvement in collective performance in ants (2008)
Journal Article

Certain groups of organisms are capable of improving their collective performance with experience. In a recent study, we demonstrated that, over successive emigrations, colonies of the ant Temnothorax albipennis are able to improve their collective p... Read More about How experienced individuals contribute to an improvement in collective performance in ants.

Tele-assembly in wide remote environments (2008)
Journal Article

Bifurcations of the global stable set of a planar endomorphism near a cusp singularity (2008)
Journal Article

The dynamics of a system defined by an endomorphism is essentially different from that of a system defined by a diffeomorphism due to interaction of invariant objects with the so-called critical locus. A planar endomorphism typically folds the phase... Read More about Bifurcations of the global stable set of a planar endomorphism near a cusp singularity.

Unconstrained springback behavior of Al-Mg-Si sheets for different sitting times (2008)
Journal Article

In this work, the springback behavior of the commercial 6022 aluminum alloy in temper aging (T4) is investigated taking into account that the sheets, prior to deformation process, are initially pre-strained and then submitted to various sitting times... Read More about Unconstrained springback behavior of Al-Mg-Si sheets for different sitting times.

Improving organ and tissue donation in transplantation: a model for maximising rates of donation and managing emergent transplant procedures (2008)
Journal Article

Identification of campylobacter infection in chickens from volatile faecal emissions (2008)
Journal Article

An approach to investigating the capability of manufacturing equipment for handling food product variation (2008)
Journal Article

A computational approach for valid assessment of significance in best subsets regression (2008)
Journal Article

Local fourier analysis of multigrid for the curl-curl equation (2007)
Journal Article

We present a local Fourier analysis of multigrid methods for the two-dimensional curl-curl formulation of Maxwell's equations. Both the hybrid smoother proposed by Hiptmair and the overlapping block smoother proposed by Arnold, Falk, and Winther are... Read More about Local fourier analysis of multigrid for the curl-curl equation.

Towards an integrated CADCAM process for the production of forming shoulders with exact geometry (2007)
Journal Article

This paper considers the application of advanced CADCAM techniques for the production of the complex machine tooling used in packaging fast-moving consumer goods. In particular, the paper discusses the practical considerations and design issues that... Read More about Towards an integrated CADCAM process for the production of forming shoulders with exact geometry.

Shape estimation using polarization and shading from two views (2007)
Journal Article

This paper presents a novel method for 3D surface reconstruction that uses polarization and shading information from two views. The method relies on polarization data acquired using a standard digital camera and a linear polarizer. Fresnel theory is... Read More about Shape estimation using polarization and shading from two views.

Theory and numerical evaluation of oddoids and evenoids: Oscillatory cuspoid integrals with odd and even polynomial phase functions (2007)
Journal Article

The properties of oscillating cuspoid integrals whose phase functions are odd and even polynomials are investigated. These integrals are called oddoids and evenoids, respectively (and collectively, oddenoids). We have studied in detail oddenoids whos... Read More about Theory and numerical evaluation of oddoids and evenoids: Oscillatory cuspoid integrals with odd and even polynomial phase functions.

The human role in telerobotics (2007)
Journal Article

This chapter introduces the main topics of a telerobotic system. It describes the architecture of such a system from a general point of view and emphasizes the interaction between a human operator and a robot that performs the task in the remote envi... Read More about The human role in telerobotics.

Advanced telerobotics: Dual-handed and mobile remote manipulation (2007)
Journal Article

This work presents an advanced dual-handed, mobile telerobotic system developed at the High-Fidelity Telepresence and Teleaction Research Centre, Munich, Germany. To the authors' best knowledge, it is the first attempt to integrate mobile and multi-r... Read More about Advanced telerobotics: Dual-handed and mobile remote manipulation.

A mixture formulation for numerical capturing of a two-phase/vapour interface in a porous medium (2007)
Journal Article

A model problem for two-phase fluid flow and heat transfer with phase change in a porous medium is described. The model is based on a steam-water mixture in sand. Under certain conditions, a two-phase zone, in which liquid and vapour coexist, is sepa... Read More about A mixture formulation for numerical capturing of a two-phase/vapour interface in a porous medium.