Cone penetration testing (CPT) is a preferred method for characterizing soil profiles evaluating seismic liquefaction triggering potential. However, CPT has limitations in highly stratified because the measured tip resistance (qc) of cone penetrometer influenced by properties soils above and below tip. This results qc values that appear “blurred” at sediment layer boundaries, inhibiting our abi...

We consider polymers attached to the tip of a cone, and the resulting force due to entropy loss on approaching a plate (or another cone). At separations shorter than the polymer radius of gyration Rg, the only relevant length scale is the tip-plate (or tip-tip) separation h, and the entropic force is given by F = A kBT/h. The universal amplitude A can be related to (geometry dependent) correlat...

race-specific resistance of wheat to yellow rust caused by puccinia striiformis f. sp. tritici has been reported as short-lived. partial resistance, a kind of quantitative resistance, has been reported to be more stable. partial resistance in terms of slow rusting parameters including final rust severity (frs), apparent infection rate (r), relative area under disease progress curve (raudpc), an...

We designed a specially designed coaxial spinneret in this study. The inner stainless-steel needle was connected to the inner plastic syringe just like the traditional one. The outer stainless-steel needle was replaced by a plastic nozzle, and connected to the outer plastic syringe. The tip of the inner stainless-steel needle was shortened 2 cm from the tip of the outer plastic nozzle. This str...

We consider a particle moving on a cone and bound to its tip by 1/r or harmonic oscillator potentials. When the deficit angle of the cone divided by 2π is a rational number, all bound classical orbits are closed. Correspondingly, the quantum system has accidental degeneracies in the discrete energy spectrum. An accidental SU(2) symmetry is generated by the rotations around the tip of the cone a...

Cone penetration testing (CPT) is a widely used geotechnical engineering in-situ test for mapping soil profiles and assessing properties. In CPT, cone on the end of series rods pushed into ground at constant rate resistance to tip measured (qm). The qm values are utilized characterize profile. Unfortunately, blurred and/or averaged which can result in distortion profile characterization inabili...

The shape of steady-state current-distance (i,-d) curves obtained by scanning electrochemical microscopy (SECM) with a submicrometer conical-type tip is substantially different from that obtained with a microdisk tip. A model is proposed to describe the i,-d curves for tips shaped as cones or spherical segments. In each case a family of theoretical working curves, computed for different values ...

Analyzing piles subjected to lateral loads significantly depends on soil resistance at any point along the pile as a function of pile deflection, known as p-y curve. On the other hand, the deformation characteristics of soil defined as “the soil strain at 50% of maximum deviatoric stress (ε50)” has considerable effect on the generated p-y curve. In this research, several models are proposed to ...

The determination of liquefaction potential is required to take into account a large number of parameters, which creates a complex nonlinear structure of the liquefaction phenomenon. The conventional methods rely on simple statistical and empirical relations or charts. However, they cannot characterise these complexities. Genetic algorithms are suited to solve these types of problems. A genetic...