This paper deals with the handling of deformable linear objects (DLOs), such as hoses, wires, or leaf springs. It investigates usable features for the visionbased detection of a changing contact situation between a DLO and a rigid polyhedral obstacle and a classification of such contact state transitions. The result is a complete classification of contact state transitions and of the most signi...

Given a theory T extending that of dense linear orders without endpoints (DLO), in a language L ⊇ {<}, we are interested in extensions T ′ of T in languages extending L by unary relation symbols that are each interpreted in models of T ′ as sets that are both dense and codense in the underlying sets of the models. There is a canonically “wild” example, namely, T = Th(〈R, <,+, ·〉) and T ′ = Th(〈...

Abstract Discontinuity layout optimization (DLO) is a powerful numerical limit analysis technique that can be used to identify the collapse load and associated failure mechanism of solid or structure. The method successfully automates traditional ‘upper bound’ plasticity, with applications including metal extrusion problems, where die forces are sought, geotechnical engineering stability founda...

E.G. Beek, 1991. Spatial interpolation of daily meteorological data; theoretical evaluation of available techniques. Wageningen (The Netherlands), DLO The Winand Staring Centre. Report 53.1.44 pp.; 13 Figs; 1 Table; 20 Refs. In agromcteorological crop yield models meteorological values at not observed points have to be obtained by means of interpolation techniques. In this study, interpolation ...

We present preliminary results from a deep (600 ks) Chandra observation of the hot interstellar medium of the nearby early-type galaxy Centaurus A (Cen A). We find a surface brightness discontinuity in the gas ∼3.5 kpc from the nucleus spanning a 120 arc. The temperature of the gas is 0.60±0.05 and 0.68±0.10 keV, interior and exterior to the discontinuity, respectively. The elemental abundance ...

The steady time-averaged flows in a rotating system of immiscible fluids are studied experimentally. fill horizontal cylindrical container and brought into centrifuged state, when less dense fluid forms core, denser is distributed the form coaxial layer. Under action gravity field, core steadily displaced along radius such way that its axis oriented parallel to remains stationary laboratory fra...

The permeability and coupled behavior of pore pressure and deformations play an important role in hydraulic fracturing (HF) modeling. In this work, a poroelastic displacement discontinuity method is used to study the permeability effect on the HF development in various formation permeabilities. The numerical method is verified by the existing analytical and experimental data. Then the propagati...

a considerable amount of energy is released in the form of shock wave from explosive charge detonation. shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. the rest of the shock wave energy is transferred to rock mass as ground vibration. ground vibration is conveyed to the adjacent structures by body and surface waves. geological structures li...