Results 51 to 60 of about 26,034 (267)

ANALISIS HIPSOMETRI DI ZONA SESAR SEMANGKO, LAMPUNG BARAT

open access: yesJGE
Sesar Semangko merupakan salah satu segmen dari Sesar Sumatra yang terletak di Lampung Barat dengan panjang 65 km, membentang dari Teluk Semangko hingga Lembah Suoh.
Hikhmadhan Gultaf
doaj   +1 more source

Magma Genesis in Kabanjahe Region Continental Margin Arc of Sumatra

open access: yesIndonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v6i2.120Volcanic rocks in Kabanjahe region, Karo Regency, North Sumatra Province, are products of old Toba Caldera, Sibayak Volcano, and Sipiso-piso Volcano.
Bhakti H. HaraHap
doaj   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

open access: yesDeep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li   +7 more
wiley   +1 more source

CHALLENGES AND OPPORTUNITIES OF ACTIVITIES IN ASSISTING NATURE RESERVES TO ACHIEVE SUSTAINABLE TECTONIC RESERVES [PDF]

open access: yesMSA Engineering Journal
:An abundant and healthy ecosystem on our planet is based on nature reserves biodiversity, which is crucial for safeguarding the planet's distinctive flora and fauna, as the human population grows and environmental concerns intensify the future of nature
Mohamed Maher, Nora Rehan
doaj   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

open access: yesDeep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang   +6 more
wiley   +1 more source

A multidisciplinary approach to the study of insular environments: the 1st Summer School on Geomorphology, Ecology, and Marine Biology in the Tremiti Islands (Southern Adriatic Sea, Puglia, Italy)

open access: yesJournal of Maps, 2020
This paper is the outcome of the 1st Summer School on Geomorphology, Ecology, and Marine Biology in insular environments, focused on the advanced and multidisciplinary methods for the scientific investigation of marine coastal areas.
Giorgio Paglia   +17 more
doaj   +1 more source

Critical expansion points: Mechanical signs of surrounding rock instability

open access: yesDeep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen   +4 more
wiley   +1 more source

Geophysical response characteristics and genetic analysis of tectonic coal:take Zhaozhuang coal mine in Jincheng mining area as an example

open access: yes矿业科学学报, 2018
The distribution of tectonic coal is of great importance to the exploration and development of coal-bed methane and the safety production of coal mine.The Zhaozhuang coal mine in Jincheng mining area is took as example.Firstly, the vertical distribution ...
Zou Guangui, Li Laichun
doaj   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao   +3 more
wiley   +1 more source

Al-Qur’an and Modern Geoscience: Part I

open access: yesElkawnie: Journal of Islamic Science and Technology, 2020
: Islamic tradition and science have been going through a long history. The Islamic world centred in the Middle East was once a centre of knowledge that was marked by the birth of prominent Islamic scientists and the development of knowledge and ...
Muhammad Zaini   +2 more
doaj   +1 more source

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