Results 1 to 10 of about 1,002,663 (347)

Clustered stone forest in Pu Dou Chun (Yunnan, China)

open access: yesActa Carsologica, 2022
One of the unique examples of the development of subsoil karren into a stone forest on the varied geological bedrock of the Lunan surface is revealed to us.
Martin Knez, Hong Liu, Tadej Slabe
doaj   +1 more source

A statistical damage constitutive rock model based on elastic energy release rate

open access: yesShuiwen dizhi gongcheng dizhi, 2021
In order to truly reveal the mechanism of rock deformation and failure and the nature of rock material damage, based on the analysis of rock material deformation law and mechanical characteristics, a rock damage constitutive model based on elastic energy
Wenbo LIU   +3 more
doaj   +1 more source

Methodology for determination of petrographic structures using the MIU-5M device

open access: yesVestnik MGTU, 2022
The authors develop a statistical method for determining the structures of rocks. A mathematically rigorous definition of the petrographic structure through the probabilities of binary intergranular contacts is proposed.
Zakharova A. A.   +3 more
doaj   +1 more source

Design of an economically feasible support for the replacement of pillars in Providencia Mine, Antioquia - Stage 1

open access: yesRevista Facultad de Ingeniería, 2019
Pillar replacement in mining works is a technique of using the pillars that are part of the support structures having a high degree of mineralization, which attracts economic interest.
Claudia Yasmin Montaño-Chinchilla   +3 more
doaj   +1 more source

Rock, mídia e política

open access: yesAlbuquerque, 2020
Resenha do livro Rock cá, rock lá: a produção roqueira no Brasil e em Portugal na imprensa – 1970/1985.
Edvaldo Correa Sotana
doaj   +1 more source

Interfonografía en el post-rock español: el uso del sampleo en los grupos nacionales asociados al género

open access: yesCuadernos de Música Iberoamericana, 2019
Como consecuencia del auge del hip-hop o la música dance, el uso de samples se ha convertido en una práctica bastante común en la actualidad. Aun así, el rock se ha mostrado prácticamente ajeno a ella al depender de una autenticidad basada en la ...
Ugo Fellone
doaj   +1 more source

Crisis contracultural y rock en la Ciudad de México: relaciones de producción, reproducción viva y sociabilidad. 1972-1977

open access: yesHistoria y Sociedad, 2020
Este artículo reconstruye un periodo poco explorado de la historia musical en México. El texto analiza la transformación de las relaciones de producción de la industria musical en la capital en el curso de descomposición de la contracultura, de ...
José Rodrigo Moreno-Elizondo
doaj   +1 more source

Distribution Characteristics and Sources Identification of Selenium-rich Soils in the Ecological Conservation Area of the Daqinghe River Watershed, Beijing

open access: yesYankuang ceshi, 2019
BACKGROUND Beijing is a typical geographical distribution area of selenium deficiency. However, some research results in recent years indicate that the soils in some areas reaches the level of selenium enrichment.
FENG Hui   +3 more
doaj   +1 more source

EXPERIMENTAL STUDY OF ROCK DESTRUCTION BY ECCENTRIC IMPACT PULSES DURING ROTARY-PERCUSSION DRILLING

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the research is caused by the need to find the ways to increase the maximum depth of well drilling by the rotary-percussion method and its productivity.
Vyacheslav V. Neskoromnykh   +1 more
doaj   +1 more source

Study of Rock Mass Stability Decrease due to Underground Mining

open access: yesГорные науки и технологии, 2019
The optimization of underground mining processes is carried out based on rational use of energy for obtaining preset broken ore size. The effective optimization requires correct assessment of the properties of the rock mass to be broken.
V. I. Golik   +3 more
doaj   +1 more source

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