Results 11 to 20 of about 51,978 (309)

Quantifying discontinuity orientation and persistence on high mountain rock slopes and large landslides using terrestrial remote sensing techniques [PDF]

open access: goldNatural Hazards and Earth System Sciences, 2009
This paper describes experience gained in the application of terrestrial digital photogrammetry and terrestrial laser scanning for the characterization of the structure of high mountain rock slopes and large landslides.
M. Sturzenegger, D. Stead
doaj   +3 more sources

Persistence discontinuity in disordered contact processes with long-range interactions [PDF]

open access: greenJournal of Statistical Mechanics: Theory and Experiment, 2020
We study the local persistence probability during non-stationary time evolutions in disordered contact processes with long-range interactions by a combination of the strong-disorder renormalization group (SDRG) method, a phenomenological theory of rare regions, and numerical simulations.
Róbert Juhász
openaire   +5 more sources

Influence of uncertainties: A focus on block volume and shape assessment for rockfall analysis

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Block size and shape depend on the state of fracturing of the rock mass and, consequently, on the geometrical features of the discontinuity sets (mainly orientation, spacing, and persistence).
Gessica Umili   +2 more
doaj   +1 more source

UAV-Based Photogrammetry and Infrared Thermography Applied to Rock Mass Survey for Geomechanical Purposes

open access: yesRemote Sensing, 2022
A research study aimed at the extending the means of estimating ISRM (International Society for Rock Mechanics) geomechanical parameters through non-contact methodologies, in the frame of the remote survey of rock masses, is herein presented.
Simone Mineo   +2 more
doaj   +1 more source

APPLICABILITY OF THE GEOLOGICAL STRENGTH INDEX (GSI) CLASSIFICATION FOR THE TRUSMADI FORMATION AT SABAH, MALAYSIA [PDF]

open access: yesEarth Science Malaysia, 2020
During the feasibility and preliminary design stages of a project, when very little detailed information on the rock mass and its geomechanic characteristics is not available, the use of a Rock Mass Classification Scheme (RMCS) can be of considerable ...
Rodeano Roslee   +3 more
doaj   +1 more source

The Role of Industry Dynamics in the Persistence of First Mover Advantages [PDF]

open access: yes, 2016
We advance first mover advantages literature by adding novel insights into the conditions that affect the persistence of first mover profitability and market share.
Gomez, J.   +2 more
core   +1 more source

Pell Grants as Performance-Based Scholarships? An Examination of Satisfactory Academic Progress Requirements in the Nation's Largest Need-Based Aid Program [PDF]

open access: yes, 2016
The Federal Pell Grant Program is the nation’s largest need-based grant program. While students’ initial eligibility for the Pell is based on financial need, renewal is contingent on meeting minimum academic standards similar to those in models of ...
Schudde, Lauren, Scott-Clayton, Judith
core   +1 more source

Strength behaviour of a model rock intersected by non-persistent joint

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Several constructions in the field of civil engineering quite often need to deal with rocks. Strength behaviour of rock intersected by a discontinuity or a set of discontinuities has been a topic of keen interest for engineering community.
Divya Shaunik, Mahendra Singh
doaj   +1 more source

Control of Near-Grazing Dynamics in the Two-Degree-of-Freedom Vibroimpact System with Symmetrical Constraints

open access: yesComplexity, 2020
The stability of grazing bifurcation is lost in three ways through the local analysis of the near-grazing dynamics using the classical concept of discontinuity mappings in the two-degree-of-freedom vibroimpact system with symmetrical constraints.
Zihan Wang   +3 more
doaj   +1 more source

Bifurcations of piecewise smooth flows:perspectives, methodologies and open problems [PDF]

open access: yes, 2012
In this paper, the theory of bifurcations in piecewise smooth flows is critically surveyed. The focus is on results that hold in arbitrarily (but finitely) many dimensions, highlighting significant areas where a detailed understanding is presently ...
Colombo, Alessandro   +3 more
core   +1 more source

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