A laboratory-scale experimental model has been developed and tested for a system that uses artificially generated high-frequency seismic waves in conjunction with a radar-based noncontact displacement sensor to detect buried landmines. The principle of operation of the system is to measure the transient displacement field very close to a mine location. In this way, the absorption and the geomet...

Recent casework in Belgium involving the search for human remains buried with lime, demonstrated the need for more detailed understanding of the effect of different types of lime on cadaver decomposition and its micro-environment. Six pigs (Sus scrofa) were used as body analogues in field experiments. They were buried without lime, with hydrated lime (Ca(OH)(2)) and with quicklime (CaO) in shal...

Daily counts of germinated seeds of white saxaul (Haloxylon persicum) incubated at 35 different hydrothermal environments (10-25?C and 0 to -3 MPa) were carried out under controlled laboratory conditions. The seeds were then buried in sand at 4 different depths in well drained pots constantly moisturized for three weeks. In all these hydrothermal conditions, the courses of germination were comp...

Recently, polyfurfuryl alcohol (PFA) based material has been gaining attention. Despite its use as an intermediate in various industries, the degradation process of PFA rarely reported. In this study, neat (PF) and polylactic acid (PLA) incorporated (PF-PL) thermoset biopolymers were prepared by casting method. The biopolymer specimens was carried out under environmental conditions via soil-bur...

The eutrophication of lowland lakes in Europe by excess nitrogen (N) and phosphorus (P) is severe because of the long history of land-cover change and agricultural intensification. The ecological and socio-economic effects of eutrophication are well understood but its effect on organic carbon (OC) sequestration by lakes and its change overtime has not been determined. Here, we compile data from...

Recruitment limitation has been proposed as an important mechanism contributing to the maintenance of tropical tree diversity. For pioneer species, infection by fungi significantly reduces seed survival in soil, potentially influencing both recruitment success and adult distributions. We examined fresh seeds of four sympatric Cecropia species for evidence of fungal infection, buried seeds for f...

EFFECT OF CONCENTRATED LOADS ON SHALLOW BURIED POLYVINYL CHLORIDE AND POLYETHYLENE TUBING by TIMOTHY JAMES MCGRATH Submitted to the Department of Civil Engineering on June 27, 1975 in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering 0 This thesis presents a study of the behavior of PVC and corrugated PE plastic pipe under simulated wheel loads. Da...

This study analyzed the effects and influencing factors of shallowly-buried explosions in soil based on design implementation static explosion experiments numerical simulations. Based test data, a analysis model SPH-FEM was established process pit parameters shallowly buried were analyzed. The results calculations comparisons verified effectiveness method simulating soil. Furthermore, similarit...

Butterflies such as the atala hairstreak, Eumaeus atala Poey, and the frosted elfin, Callophrys irus Godart, are restricted to frequently disturbed habitats where their larval host plants occur. Pupae of these butterflies are noted to reside at the base of host plants or in the leaf litter and soil, which may allow them to escape direct mortality by fire, a prominent disturbance in many areas t...

This study investigates the soil organic carbon (SOC) storage in Tarfala Valley, northern Sweden. Field inventories, upscaled based on land cover, show that this alpine permafrost environment does not store large amounts of SOC, with an estimate mean of 0.9± 0.2 kg C m for the upper meter of soil. This is 1 to 2 orders of magnitude lower than what has been reported for lowland permafrost terrai...