In order to automate the scooping task, it is desirable that the resistive force acting on the bucket be obtained before the scooping is performed. The objective of this study is to derive theoretically the resistive forces acting on the bucket during scooping of piled rock fragments. First, the changes in the shape of the rock pile due to the penetration of it by the bucket are modeled. Based ...

In this work we establish reliable correlations between density and magnetic susceptibility in three paramagnetic granites from the Pyrenees. total, 128 sites (310 measurements >2600 ones) were studied Mont Louis-Andorra, Maladeta Marimanha granitic plutons covering main range of variability susceptibility. Regressions calculated for every body an integrated linear function was obtained enti...

BACKGROUND Malignant glioma is one of the most intractable diseases in the human body. Rho-kinase (ROCK) is overexpressed and has been proposed as the main cause for the refractoriness of the disease. Since efficacious treatment is required, this study investigated the effect of inhibition of ROCK isoforms. MATERIALS AND METHODS The short hairpin RNA transcription vector was transfected into ...

Geological disaster causes loss of lives and damage to man-made and natural stuctures. In this paper, a coupling method with optimal combination weighing law and extension model was established. Based on dynamic impact factors such as forest coverage, annual average rainfall, topography and gemorphogy, geologic structure, and type of rock and soil, the amount of disaster points and human engine...

This Special Publication provides a snapshot of our understanding of volcanic processes through the use of palaeomagnetic and rock magnetic techniques. Here, we provide a context for the book, placing individual chapters within the milieu of previous work, including some magnetic techniques that were not used in the particular studies described herein. Thermoremanent magnetization is a powerful...

Toppling of individual rock blocks resting on an inclined surface has often been observed in nature. This instability mechanism typically analysed for simple block geometries, considering the contact between and base where it lies is a planar surface. In this study, authors analyse case regularly rough To do that, resort to analytical limit equilibrium formulations, laboratory physical models d...

In Norway, crushed rock aggregates are widely used in all layers of pavement infrastructures. Frost heave severely affected the Norwegian road network during cold winters 2009/10 and 2010/11, including newly built roads. 2016, Protection for Roads Railways project (FROST) was set up part to investigate frost susceptibility aggregates. Twenty-three tests were performed on 0–4 mm fraction with ni...

Linear transformation techniques such as singular value decomposition (SVD) have been used widely to gain insight into the qualitative dynamics of data generated by dynamical systems. There have been several reports in the past that had pointed out the susceptibility of linear transformation approaches in the presence of nonlinear correla tions. In this tutorial review, the local dispersion alo...

Thirty oriented fresh block samples were collected from ten suitable sites of the outcropping andesite rock formation to study their Petrographical characteristics and Magnetic properties. The analysis of these rocks around Khairmalia shows that the magnetite crystals are fresh and are in perfect shape. These crystals are present in sufficient quantity i.e. measured as 10 to 20% in various rock...