نتایج جستجو برای: discontinuous rock

تعداد نتایج: 59414  

Journal: :IJOCI 2016
Yaotai Lu

1 A Case Study on Data Quality, Privacy, and Evaluating the Outcome of Entity Resolution Processes Pei Wang, University of Arkansas at Little Rock, Little Rock, AR, USA Daniel Pullen, University of Arkansas at Little Rock, Little Rock, AR, USA Fan Liu, University of Arkansas at Little Rock, Little Rock, AR, USA William C. Decker, University of Arkansas at Little Rock, Little Rock, AR, USA Ningn...

In this article, we propose an adaptive grid based on mesh equidistribution principle for two-parameter convection-diffusion boundary value problems with continuous and discontinuous data. A numerical algorithm based on an upwind finite difference operator and an appropriate adaptive grid is constructed. Truncation errors are derived for both continuous and discontinuous problems. Parameter uni...

Journal: :Lithosphere 2022

Abstract Rock slopes with intermittent joints in open-pit mines are complex geological bodies composed of intact rock and discontinuous structural planes, their stability analysis necessary for mine disaster prevention. In this study, a series base friction tests were performed to determine the failure process displacement field evolution using speckle technique noncontact measurement system. N...

Journal: :Water Resources Research 2022

Intersecting fractures often dominate the rock though which groundwater flows and they represent a crucial feature in models. In this paper limitless analytic elements were used to model intersecting heterogeneous with either high or low transmissivity relative that of surrounding medium. To handle singular behavior at intersections, modeled as multiple elements, tips meet point intersection. T...

Journal: :Frontiers in Earth Science 2023

The assessment of rock slope stability is usually controlled by the presence discontinuities. block theory an established method in practical engineering to predict slopes. A maximum two discontinuity planes are considered application theory. It would lead inaccurate prediction slopes with multiple planes. novel for estimating safety margin proposed, which capable considering contribution all d...

Journal: :Applied sciences 2023

We investigated a vibro-impacting indenter interacting with strata in the form of metal or rock samples experimentally and via mathematical modelling. An experimental programme was undertaken on custom-designed rig at Centre for Applied Dynamics University Aberdeen. The models captured essential mechanics when interacted samples. functions describing discontinuous phases were specific to Approp...

Journal: :Zapiski Gornogo instituta 2023

Geomechanical monitoring of the rock mass state is an actively developing branch geomechanics, in which it impossible to distinguish a single methodology and approaches for solving problems, collecting analyzing data when seismic systems. During mining operations, all natural factors are subject changes. mass, changes structural inhomogeneities most clearly manifested: existing revealed; there ...

Abedini, Ali, Calagari, AliAsghar, Ghasemi, mahmoud,

The Zaraj-Sou bauxite deposit (southwest of Ramsar, Mazandaran Province, northern Iran) was developed as discontinuous stratified layers and/or lenses along the boundary between carbonate rocks of the Elika (Triassic) and shales and sandstones of the Shemshak (Lower Jurassic) formations. Diaspore, kaolinite, hematite, and anatase are the major mineral phases of the ores. Texturally, the bauxite...

Journal: :FEBS letters 1996
O Nakagawa K Fujisawa T Ishizaki Y Saito K Nakao S Narumiya

We recently identified a novel human protein kinase, p160 ROCK, as a putative downstream target of the small GTPase Rho. Using the human ROCK cDNA as a probe, we isolated cDNA of two distinct, highly related sequences from mouse libraries. One encoded a mouse counterpart of human ROCK (ROCK-I), and the other encoded a novel ROCK-related kinase (ROCK-II). Like ROCK/ROCK-I, ROCK-II also bound to ...

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