Buried steel fuel pipelines are critical lifelines for the society and the economy but are very vulnerable to earthquake-induced ground failure. Traversing seismic areas inevitably results in several pipe-fault crossings. Fault rupture forces a buried pipeline to undergo deformations that could be substantial and heavily endanger its integrity. Due to the grave consequences of a potential pipe ...

Fragmentation of crystals is an important mechanism, and a component of particle dynamics in igneous and metamorphic rocks that has received surprisingly little attention. Recent advances in textural analysis, extraction techniques, digital imaging, and computer-assisted measurements enable rapid accumulation of 3D data on particle shapes and size distributions. This paper reviews fragment size...

Abstract Background High-strength wastewater defined by elevated levels of hazardous pollutants measured in BOD, heavy metals, nutrients and other toxic substances. This kind discharged to water body without treatment from different industrial sectors that adversely affects aquatic environment downstream consumers. The general objective this study is investigate efficient substrate with selecte...

Pumice pebbles were collected by staff of the Marshall Islands Historic Preservation Office (RMIHPO) during a 2005 cultural inventory of Jelbon Islet, Mili Atoll. GNS Science analyzed the major and trace element chemistry and found a close match with analyses of the alkali-rich rhyolite erupted in 1953-1957 from Tuluman Island, Admiralty group, Papua New Guinea some 3000 km from Mili Atoll. The...

Abstract. The Polymer concrete is first established in the year of 1950s and gained popularity 1970s repair works, building cladding floors, as precasts components. has found applications particularly specialised sectors due to its qualities such high compression strength, quick curings, specific strengths, chemical resist. objective this experiment use destructive non-destructive experiments a...

In the production of cement and concrete, mechanical durable properties are essential, along with reasonable cost sustainability. This study aimed to apply an evaluation procedure level sustainability mixtures high-performance concretes (HPC) various eco-friendly supplementary cementitious materials (SCM). The major (SCMs), namely, volcanic pumice pozzolan (VPP), Class C F fly ash, ground granu...

STUDY AREA The 18 May 1980 eruptions of Mount St. Helens formed a complex pattern of new and denuded land (Dale et al. 2005). This extraordinary landscape beckoned irresistibly to ecologists to study reassembly (Fig. 1). This report draws on studies conducted by myself and colleagues since 1980. Methods are in the references. Vegetation structure was monitored in transects of permanent plots: 1...

Precise and direct dating of the Minoan eruption of Santorini (Thera) in Greece, a global Bronze Age time marker, has been made possible by the unique find of an olive tree, buried alive in life position by the tephra (pumice and ashes) on Santorini. We applied so-called radiocarbon wiggle-matching to a carbon-14 sequence of tree-ring segments to constrain the eruption date to the range 1627-16...