With the recent advances in biogeotechnics field and specifically microbially induced calcite precipitation (MICP), cone penetration testing (CPT) has become a valuable tool to overcome challenges associated with intact sampling of improved soils, evaluate spatial extent magnitude applied MICP treatment, assess consequential improvement engineering properties. Although CPT tip resistance (qc) c...

Microbial induced carbonate precipitation (MICP) is a new geotechnical engineering technology used to strengthen soils and other materials. Although it considered be environmentally friendly, there lack of quantitative data objective evaluation support conclusions about its environmental impact. In this paper, the energy consumption carbon emissions MICP are quantitatively analyzed by using lif...

We construct unramified central simple algebras representing 2-torsion classes in the Brauer group of a hyperelliptic curve, and show that every 2-torsion class can be constructed this way when the curve has a rational Weierstrass point or when the base field is C1. In general, we show that a large (but in general proper) subgroup of the 2torsion classes are given by the construction. Examples ...

In this brief note, we prove the following two Artin-Schreier curves are supersin-gular.

Abstract MICP technology is a new proposed for soil reinforcement research in recent years, which has the advantages of environmental protection and sustainability. Through review analysis domestic foreign literature, mechanism microbial mineralization reaction progress scholars were comprehensively summarized. This paper introduces basic principle urea hydrolysis technology, expounds control f...

Microbially induced calcium carbonate precipitation (MICP) uses the metabolic function of microbes to carry out biochemical reactions with other substances in environment. Through controlled growth inorganic minerals, soil particles are cemented and pores filled solidify reduce its permeability. Thus, application this technology was foreseen geotechnical engineering environment (building antise...

Quantitate characterization of pore structures is fundamental to elucidate fluid flow in the porous media. Pore Lucaogou Formation Jimsar Sag were investigated using petrography, mercury intrusion capillary porosimetry (MICP) and X-ray computed tomography (X-ray μ-CT). MICP analyses demonstrate that topological structure characterized by segmented fractal dimensions. Fractal dimension small por...

In this paper, we give a ‘direct’ construction of the endomorphism ring of supersingular elliptic curves over a prime field Fp from ‘ideal classes’ of Q( √−p). We use the result to prove that the result of Kaneko on ‘minimal’ CM liftings of such supersingular elliptic curves is a best possible result. We also prove that the result of Elkies on ‘minimal’ CM liftings of all supersingular elliptic...

Acknowledgements: We thank Scott Saxon, BS, Tazlina Mannix, MPH, Andrea Fenaughty, PhD, and David Gibson, BS, Alaska Division of Public Health; and Erich Scheunemann, Assistant Chief, MICP, Anchorage Fire Department for their important contributions to this report. Department of Health and Social Services Valerie J. Davidson, Commissioner Division of Public Health Jay C. Butler, MD, Chief Medic...

The strength and deformation properties of maritime geotechnical structures made primarily calcareous sand are critical for project safety. geogrid reinforcement is developed as a promising approach to improve the mechanical sand. This study investigates property biomodified via microbially induced calcite precipitation (MICP) process effectiveness A series unconsolidated undrained triaxial exp...