Abstract. Precision, accuracy, and temporal resolution are key to making full use of atmospheric trace gas records in ice cores. These aspects will become especially crucial for cores that aim extend the core record last 1.5 Myr, i.e., across Mid-Pleistocene Transition (as currently drilled within European project Beyond EPICA – Oldest Ice Core (BE-OIC)). The from this period is expected be clo...

This paper aims to assess the strength of a 100 + year old masonry arch bridges in Australia that are currently operation and routinely subjected train loadings. Towards this end, 45 cores 150 mm diameter with varied lengths joint configurations were drilled from typical bridge tested. Out these samples, 30 tested under direct compression 15 for tensile varying bed angles. The samples testing r...

Stable isotopes of Antarcticice cores are used extensively in reconstructing the past climate. Variations snow accumulation patterns and post-depositional processes such as changes isotope ratios due to diffusion may complicate these records. We analyzed spatio-temporal variations accumulation, stable isotopic composition, factors controlling their distribution along two transects Dronning Maud...

Remanufacturing is an industrial process that makes used products reusable. Remanufacturing is a way to establish a closed-loop supply chain. One of the important aspects in both reverse logistics and remanufacturing is pricing of returned and remanufactured products (called cores) that it has been noticed in this paper. In addition, in this paper the researchers have tried to present a mathema...

Here, we present direct measurements of atmospheric composition and Antarctic climate from the mid-Pleistocene (∼1 Ma) from ice cores drilled in the Allan Hills blue ice area, Antarctica. The 1-Ma ice is dated from the deficit in (40)Ar relative to the modern atmosphere and is present as a stratigraphically disturbed 12-m section at the base of a 126-m ice core. The 1-Ma ice appears to represen...

Soil cores were drilled under the leguminous tree Acacia albida growing in two different ecoclimatic zones of West Africa: the Sahelian area (100 to 500 mm of annual rainfall) and the Sudano-Guinean area (1,000 to 1,500 mm of annual rainfall). Soil samples were collected at different depths from the surface down to the water table level and analyzed for the presence of rhizobia able to nodulate...

RESULTS Drilled four wells based on the model, successfully predicting the type and thickness of reservoir facies, enabling the operator to pursue optimal field development strategies with higher confidence in the distribution and connectivity of critical flow units. Modeling reservoir architecture with limited data After successfully developing Cretaceous reservoirs in several northern Kuwait ...

This paper deals with the conversion of a digital image of a person into a portrait engraved on the surface of a material (white foam with a dark surface). In this approach, a series of holes of varying diameter are drilled into the surface. A mapping is made from a set of numbers (RGB values) in the input image to a set of diameters for the holes to be drilled. The holes expose a white inner c...