This article examines the presence of urban soil buried under anthropogenic debris in an air-museum park Madrid city center (Spain), and highlights particularities this singular urbanized setting to indicate ecological evaluation options for soils. The study a profile (with thickness about 2.30 m), classified as Urbic Technosols, allowed us devise that it is formed by series filled-in amounts a...

Adhesion is important in many industrial applications including those in the microelectronics industry. Flip-chip assemblies commonly utilize epoxy underfills to promote reliability and the buried interfacial structure of underfills is crucial to device lifetime. Poor adhesion at this interface can cause premature device failure. One method to increase adhesion strength is to plasma treat the s...

An artificial charge pair buried in the hydrophobic core of staphylococcal nuclease was engineered by making the V23E and L36K substitutions. Buried individually, Glu-23 and Lys-36 both titrate with pKa values near 7. When buried together their pKa values appear to be normal. The ionizable moieties of the buried Glu-Lys pair are 2.6 Å apart. The interaction between them at pH 7 is worth 5 kcal/...

This paper addresses the mechanical behavior of buried steel pipeline crossing subsidence strata. The investigation is based on numerical simulation of the nonlinear response of the pipeline-soil system through finite element method, considering large strain and displacement, inelastic material behavior of buried pipeline and the surrounding soil, as well as contact and friction on the pipeline...

The Late Holocene phases of aeolian processes have been reconstructed on the basis dune fields construction. palaeoenvironmental studies were targeted to following problems: 1) determine periods higher and lower activity processes; 2) establish age deposits buried soils; 3) retrace deve­lopment coastal landscapes. was determined by radiocarbon dating paleosols tephrostratigraphy. correlation te...

Mangroves are known for large carbon stocks and high sequestration rates in biomass soils, making these intertidal wetlands a cost-effective strategy some nations to compensate portion of their dioxide (CO 2 ) emissions. However, few countries have the national-level inventories required support inclusion mangroves into national credit markets. This is case Brazil, home second largest mangrove ...

Underground structures can be severely damaged during strong earthquakes. Potential damage to infrastructure due uplift increases in liquefied soils. Several models used simulate soil liquefaction. This study presents a new numerical method estimate the overall response of shallow-buried tunnels and interpret liquefaction mechanism saturated sand around structure under seismic action. The stems...