Results 1 to 10 of about 772,089 (187)

Holographic in situ stress measurements [PDF]

open access: yesGeophysical Journal International, 1986
A new instrument for measuring the in situ level of stress in boreholes has been developed. The instrument operates on the principle of locally relieving the stresses acting on a rock mass by drilling a small hole into the borehole surface and recording the resultant displacement field by holographic interferometry.
Bass, Jay D.   +2 more
openaire   +5 more sources

A pilot cross-sectional investigation of chronic shame as a mediator of the relationship between subjective social status and self-rated health among middle-aged adults

open access: yesHealth Psychology and Behavioral Medicine, 2023
Subjective social status (SSS) is an important independent predictor of health outcomes, however, the pathways through which it affects health are poorly understood.
Ellen C. McGarity-Shipley   +2 more
doaj   +1 more source

Development and research of in-situ stress parameters database for underground coal mines of China

open access: yesMeikuang Anquan, 2021
Underground 1379 in-situ stress measurement items in underground coal mines of China was collected, including 928 items of the hydraulic fracturing, 427 items of stress release, 24 items of acoustic emission.
YI Bingding
doaj   +1 more source

In-situ stress measurement and inversion analysis of the deep shaft project area in Sanshan Island based on hydraulic fracturing method

open access: yesDizhi lixue xuebao, 2023
The proposed 2000-meter-deep auxiliary shaft at the Xiling mine, Sanshan Island, Shandong Province, is an ultra-deep shaft construction project. Revealing the characteristics of the in-situ stress field in the shaft construction area is one of the ...
ZHU Mingde   +8 more
doaj   +1 more source

Evaluation and engineering applications of the in situ stress state of deep tight sandstone reservoirs in the Xujiahe Formation of the Yingshan-Longgang in the central Sichuan Basin

open access: yesFrontiers in Earth Science, 2023
Introduction: The Xujiahe Formation in the Yingshan-Longgang area of the Sichuan Basin has abundant tight oil and gas resources. However, the complex geological conditions and insufficient understanding of the magnitude and direction of in-situ stresses ...
Songyang Gao   +12 more
doaj   +1 more source

Cytogenetics and Consequences of Polyploidization on Different Biotic-Abiotic Stress Tolerance and the Potential Mechanisms Involved

open access: yesPlants, 2022
The application of polyploidy in sustainable agriculture has already brought much appreciation among researchers. Polyploidy may occur naturally or can be induced in the laboratory using chemical or gaseous agents and results in complete chromosome ...
Md Mazharul Islam   +6 more
doaj   +1 more source

In-situ stress state in critical areas of the Taiyuan pumped storage power station and its application in pivot project layout

open access: yesDizhi lixue xuebao, 2023
The hydraulic fracturing in-situ stress testing technology was used to test two boreholes (500-meter and 520-meter deep) at the Taiyuan pumped storage power station in Shanxi Province.
BAI Jinpeng   +5 more
doaj   +1 more source

A study on relationships between measured crustal stresses and depth based on spherical shell model

open access: yes矿业科学学报, 2022
Due to the exploitation of mineral resources in the deep underground space, it is more and more important to study the variation trend of deep in-situ stress field. In recent years the researches have updated many in-situ stress data.
Liu Bingquan   +4 more
doaj   +1 more source

Fracture Characteristics and its Role in Bedrock Reservoirs in the Kunbei Fault Terrace Belt of Qaidam Basin, China

open access: yesFrontiers in Earth Science, 2022
Fracture characteristics at bedrock reservoirs in the Kunbei fault terrace belt in the southwest of Qaidam Basin, China, are investigated based on cores, thin sections, formation microscanner imaging, and production data.
Zhaosheng Wang   +8 more
doaj   +1 more source

In situ observation of stress relaxation in epitaxial graphene [PDF]

open access: yes, 2009
Upon cooling, branched line defects develop in epitaxial graphene grown at high temperature on Pt(111) and Ir(111). Using atomically resolved scanning tunneling microscopy we demonstrate that these defects are wrinkles in the graphene layer, i.e. stripes
  +20 more
core   +5 more sources

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