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6.826  Articles
1 of 684 pages  |  10  records  |  more records»
Based on a properly modified testing platform and Physical Acoustics Corporation (PAC) Micro-II acoustic emission (AE) system, a series of sequential indentation tests on granite samples with five different water contents was conducted to investigate the ... see more

The Geological discontinuities such as joint are the most common discontinuities present in the rock mass. A model scale study was carried out to evaluate the effect of the joints on rock blasting. Single hole tests at three selected burdens (optimum, les... see more

A HYBRID FINITE-DISCRETE ELEMENT METHOD IS PROPOSED TO MODEL THE ROCK FRACTURE UNDER STATIC AND DYNAMIC LOADING. THE KEY COMPONENT OF THE HYBRID FINITE-DISCRETE ELEMENT METHOD, I.E. TRANSITION FROM CONTINUUM TO DISCONTINUUM THROUGH FRACTURE AND FRAGMENTAT... see more

The Oscurusciuto rock shelter, located in southern Italy (Puglia), has yielded a long Middle Palaeolithic stratigraphy rich in lithic assemblages, fireplaces and faunal remains, attesting Neanderthal occupation during the MIS 3. This paper is focused on t... see more

In the Sierra of Alvear, Tierra del Fuego, the Cerro Krund is located overhead the ski Cerro CastorArea. In the South slope of the Cerro Krund, to 900 m a.s.l., an active rockglacier is siting as they attest the presence of interstitial ice and of cracks ... see more

The Pedregal de San Angel Ecological Reserve at Ciudad Universitaria (PSAER-CU) has a fraction of the original lava spill of Xitle volcano and currently the soil and plant community are affected by the landscape fragmentation, construction waste filler (s... see more

The analysis of published and unpublished 368 K/Ar radiometric ages of basic, intermediate and alkaline volcanic rocks, related to the post-Paleozoic magmatism linked to the opening of the South Atlantic Ocean, yields some important evidence concerning th... see more

Birds are considered as good indicators of the degree of human disturbance to the various ecosystems. In this work, we present the birds of Wadi Gaza Nature Reserve and its environs, drawing upon a two-year field survey from October 2002 to September 2004... see more

AbstractThis study on the natural and degraded natural vegetation of natural areas in the Potchefstroom Municipal Area, forms part of a research programme on spontaneous vegetation in urban open spaces in the North West Province, South Africa. Using a num... see more

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