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120 resultados encontrados.

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Publicación seriada

3D cross-hole resistivity inversion imaging of surrounding rock based on distance weighting constraint algorithm

ISSN: 10004548 · Editor / fuente: Editorial Office of Chinese Journal of Geotechnical Engineering

241

contenidos disponibles

Publicación seriada

A 5-Year-Old Female with Neutropenia and Compound Heterozygous Variants in CXCR2

ISSN: 30658993 · Editor / fuente: Rockefeller University Press

232

contenidos disponibles

Publicación seriada

"Rock, consumo cultural e identidades juveniles". (Un estudio sobre las bandas de Rock en Maracaibo)

ISSN: 13150006 · Editor / fuente: Asociación Venezolana de Sociología,

109

contenidos disponibles

Dynamic mechanical response and failure patterns of ore rocks with varying grades
Artículo
Acceso abierto Artículo DOAJ
DU Wenxiu et al · Emergency Management Press · 2026 · ISSN 2096-2193
This study investigates the dynamic mechanical response and energy dissipation mechanism of ore rock with different grades from the Baiyun Ebo West Mine under impact loading. Ore rock samples were taken for dynamic mecha...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground construction; TENDOk1pbmluZyBlbmdpbmVlcmluZy4gTWV0YIdioma eng
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Open Access
Dynamic response characteristics and failure mechanism of coal-rock combination under different immersion conditions
Artículo
Material complementario disponible Artículo DOAJ
Xiangyang ZHANG et al · Editorial Office of Coal Geology & Exploration · 2026 · ISSN 1001-1986
BackgroundIn practical engineering, the waterproof coal pillar usually suffers from different degrees of dynamic load from the overlying strata, and its internal water distribution is non-uniform. Although the traditiona...
LCC TENDOkdlb2xvZ3k~; TENDOk1pbmluZyBlbmdpbmVlcmluZy4gTWV0YWxsdXJneQ~~Idioma zho
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Effect of discharge voltage on crack distribution and fracture extent in multi-hole pulsed discharge rock fragmentation
Artículo
Acceso abierto Artículo DOAJ
LIU Bingchen et al · Emergency Management Press · 2026 · ISSN 2096-2193
This study investigates the effect of discharge voltage on fracture distribution and fragmentation extent in multi-hole pulsed discharge rock fragmentation. Comparative experiments were conducted on red sandstone specime...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground construction; TENDOk1pbmluZyBlbmdpbmVlcmluZy4gTWV0YIdioma eng
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Open Access
Evaluation of 850°C Heat Treatment: Effects of Used-Oil Quenching, Brine Quenching, and Pack Carburizing on the Rockwell Hardness of ST37 Shredder Blades
Artículo
Acceso abierto Artículo DOAJ
Rahmat Fajrul et al · Politeknik Negeri Jakarta · 2026 · ISSN 2747-1381
Waste shredder blades operate under abrasive contact and intermittent impacts from heterogeneous materials, making surface hardness a key property for maintaining cutting performance and reducing premature dulling. This ...
LCC TENDOk1lY2hhbmljYWwgZW5naW5lZXJpbmcgYW5kIG1hY2hpbmVyeQ~~Idioma eng
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Open Access
Experimental and numerical studies on progressive failure characteristics of weak surrounding rock mass of tunnel and its anchoring effect
Artículo
Acceso abierto Artículo DOAJ
XU Qian-wei 1, CHENG Pan-pan 1, ZHU He-hua 2, DING Wen-qi 2, LI Yuan-hai 3, TANG Zhuo-hua 4 · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
In view of the collapse accidents encountered in the process of tunneling in weak and fractured rock mass, scaled model tests and numerical simulations are developed to study the progressive failure process of surroundin...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Fragmentation expansion and water storage characteristics of fractured rock in caving zones under impact loading
Artículo
Acceso abierto Artículo DOAJ
FANG Jie et al · Emergency Management Press · 2026 · ISSN 2096-2193
This study investigates the fragmentation expansion and water storage characteristics of collapsed rock in overlying strata during its formation. Pre-static loaded fractured samples of four typical roof rock types-coarse...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground construction; TENDOk1pbmluZyBlbmdpbmVlcmluZy4gTWV0YIdioma eng
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Open Access
Impact of data space augmentation strategy on model accuracy and generalization in thin-section rock classification
Artículo
Material complementario disponible Artículo DOAJ
Magdalena Habrat et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract The growing importance of machine learning in geological data computing, as well as in the broader geoscience and energy sectors, makes it essential to evaluate the impact of data augmentation on model performan...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Impacts of industrial emissions on rock art at Murujuga, Western Australia
Artículo
Acceso abierto Artículo DOAJ
K. A. Evans et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract The Murujuga Archipelago, Western Australia, hosts over one million petroglyphs that preserve indigenous knowledge spanning 50,000 years. This globally significant and newly UNESCO-listed world heritage site is ...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
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Open Access
In-situ measurement of rock permeability based on pneumatic tests in boreholes
Artículo
Acceso abierto Artículo DOAJ
CAO Yuan , NIU Guan-yi , WANG Tie-liang · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
The in-situ measurement formula for rock permeability is derived based on the theory of steady gas seepage. A rough judgement method for Darcy seepage in engineering is given based on the Pavlovsky’s Reynolds number fo...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Influence factors and control measures for the density of rockfill by using irrigation method
Artículo
Acceso abierto Artículo DOAJ
CHEN Yun , HU Zhi-gang , XU Han · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
The irrigation method can directly detect the density of the filling body. It has the merits of simple principle and easy to use, so it is widely used in the quality inspection of the filling materials of earth rock fill...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Interaction between offset parallel cracks in rock
Artículo
Acceso abierto Artículo DOAJ
ZHU Di-jie 1, CHEN Zhong-hui 1, XI Jing-yi 2, YANG Deng-feng 1 · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
The interaction of cracks with different locations and sizes is a key factor leading to the damage of rock. Based on the Kachanov method, the interaction rules between two offset parallel cracks with different level inte...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Investigation of deformation characteristics of gate and earth–rock dam systems under deep overburden conditions
Artículo
Acceso abierto Artículo DOAJ
Boyuan Liu et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract Gate and earth-rock dam systems are the preferred dam types for river sections under deep overburden conditions, low head, and high flow rates. This study established a three-dimensional finite element model inc...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
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Open Access
Mechanism and application of using engineering defect to prevent and control rock burst
Artículo
Acceso abierto Artículo DOAJ
PAN Li-you 1, 2, WEI Hui 3, CHEN Li-qiang 3, DUAN Da-yong 3, LIU Hong-jun 4 · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
Based on the complete researches on rock burst, the prevention and control situations and development tendency of rock burst are analyzed. The prevention and control idea of high stress and high energy rock burst is put ...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Mechanisms underlying lateral force applied to a PDC cutter on a PDC drill bit during rotary rock breaking
Artículo
Acceso abierto Artículo DOAJ
Jiusen WEI et al · Editorial Office of Coal Geology & Exploration · 2026 · ISSN 1001-1986
ObjectiveTo improve the rock-breaking efficiency and durability of drill bits in the theoretical research on the optimal design of drill bits, the key is to systematically reveal both the rock-breaking mechanisms of poly...
LCC TENDOkdlb2xvZ3k~; TENDOk1pbmluZyBlbmdpbmVlcmluZy4gTWV0YWxsdXJneQ~~Idioma zho
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Open Access
Numerical model for jointed rock mass in particle flow code and its application
Artículo
Acceso abierto Artículo DOAJ
JIN Ai-bing 1, LIU Gang 1, YANG Zhen-wei 2 · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
To simulate the joint network around mining tunnels and to conduct the stability analysis of tunnels in jointed rock mass, a numerical model for jointed rock mass containing particle flow block model, original joint netw...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Physical simulation test of true triaxial rock mechanics for waterflood dilation in offshore oilfields
Artículo
Material complementario disponible Artículo DOAJ
Dengke Li et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract The reservoirs in the western South China Sea oilfield are characterized by low permeability, poor pore connectivity, high laminated content, severe pollution, and prominent interlayer contradictions. For this r...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Recognition of frequency information in acoustic emission monitoring of rock fracture
Artículo
Material complementario disponible Artículo DOAJ
LIU Xiang-xin 1,2, ZHANG Yan-bo 1, LIANG Zhen-zhao 2, LIU Shan-jun 3 · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
The mathematical methods of FFT and wavelet transform are used to deal with the acoustic emission (AE) frequency information of rock fracture firstly. Combined with the spectral distribution of AE signal, the main respon...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Research on the joint bearing mechanism and sensitivity of surrounding rock sharing rate of buried water conveyance tunnels
Artículo
Acceso abierto Artículo DOAJ
Dong Zhou et al · Frontiers Media S.A · 2026 · ISSN 2296-6463
In view of the structural bearing performance issues of buried water diversion tunnels, the paper conducted a series of numerical simulation study on the joint bearing mechanism of steel lining-concrete lining-surroundin...
LCC TENDOlNjaWVuY2U~Idioma eng
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Open Access
Spatiotemporal characteristics of drought in the Southwest Karst Rocky desertification zone, 1992–2022
Artículo
Acceso abierto Artículo DOAJ
Hanqi Zhang et al · Elsevier · 2026 · ISSN 2665-9727
Drought threatens ecosystem resilience in the fragile karst rocky desertification zone of Southwest China. Based on meteorological observations from 1992 to 2022, this study assessed drought dynamics using the Reconnaiss...
LCC TENDOkVudmlyb25tZW50YWwgc2NpZW5jZXM~Idioma eng
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Open Access
Sr–Nd isotope data of basement rocks from the northernmost argentine Precordillera and its implications for the early Paleozoic evolution of SW Gondwana margin
Artículo
Acceso abierto Artículo CONICET Digital
Martina, Federico et al · Pergamon-Elsevier Science Ltd · 2014 · ISSN 0895-9811
The Precordillera terrane (Cuyania) in western Argentina is commonly accepted as an exotic fragmentderived from Laurentia in the Early Paleozoic. Evidence supporting such an interpretation is manly basedon similarities i...
Idioma eng
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Open Access
Temporal patterns in the diet and food partitioning in Imperial Cormorants (Phalacrocorax atriceps) and Rock Shags (P. magellanicus) breeding at Bahía Bustamante, Argentina
Artículo
Acceso abierto Artículo CONICET Digital
Punta, Gabriel et al · Wilson Ornithological Society · 2003 · ISSN 0043-5643
We studied the diet of Imperial Cormorants (Phalacrocorax atriceps) and Rock Shags (P.magellanicus) at Bahý´a Bustamante, Argentina, between 1992 and 1994. We analyzed pellet casts (1887 from Imperial Cormorants and 79...
Idioma eng
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Open Access
The Synthesis and Characterization of Low-cost Mesoporous Silica SiO2 from Local Pumice Rock
Tesis
Acceso abierto Tesis DOAJ
Asmaa Mourhly et al · SAGE Publishing · 2015 · ISSN 1847-9804
Pumice is a porous volcanic rock containing a significant proportion of silica and alumina, and which has a low iron content. This natural, silica-rich material attracts wide attention because of its applications in adso...
LCC LCC:Materials of engineering and construction. Mechanics of materials; TENDOlRlY2hub2xvZ3k~Idioma eng
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Open Access
Three-dimension elastic-plastic damage constitutive model for intact rock
Artículo
Acceso abierto Artículo DOAJ
DU Xiu-li 1, HUANG Jing-qi 1,2, JIN Liu 1, ZHAO Mi 1 · Editorial Office of Chinese Journal of Geotechnical Engineering · 2017 · ISSN 1000-4548
Based on the concept of true stress and the strain equivalence hypothesis, a three-dimension elastic-plastic damage constitutive model for rock is established. Combining the nonlinear unified strength model as the yield ...
LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground constructionIdioma eng
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Open Access
Um laboratório da Fundação Rockefeller: interação médica e produção de conhecimento científico na saúde internacional
Artículo
Acceso abierto Artículo DOAJ
Ricardo dos Santos Batista · Universidade Estadual Paulista Julio de Mesquita Filho · 2022 · ISSN 1980-4369
Resumo: O presente artigo analisa a recepção do Laboratório da Fundação Rockefeller na Bahia, entre 1928 e 1930, como propulsor de interações entre agentes de saúde e agentes de construção de conhecimento cient...
LCC LCC:History (General)Idioma eng
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Open Access