Results 21 to 30 of about 218,898 (267)

Inversion Analysis of the In Situ Stress Field around Underground Caverns Based on Particle Swarm Optimization Optimized Back Propagation Neural Network

Applied Sciences, 2023
The in situ stress distribution is one of the driving factors for the design and construction of underground engineering. Numerical analysis methods based on artificial neural networks are the most common and effective methods for in situ stress ...
Hong-Chuan Yan, Huai-Zhong Liu, Yao Li, Li Zhuo, Ming-Li Xiao, Ke-Pu Chen, Jia-Ming Wu, Jian-Liang Pei   +7 more
doaj   +1 more source

Early identification on failure mode of loess landslide: insight from case study and physical model experiment

Frontiers in Earth Science
IntroductionThe Loess Plateau has long been plagued by cascading loess landslides. The rapid identification of these landslides, along with the accurate determination of their failure modes, is essential for conducting precise disaster assessments in the
Ran Li, Ran Li, Ran Li, Jiangkun He, Han Zheng, Chenyuan Zhang, Shuai Zhang, Shuai Zhang, Shuai Zhang   +8 more
doaj   +1 more source

In situ stress characteristics of the NE Sichuan basin based on acoustic emission test and imaging logging

SN Applied Sciences, 2021
This study presents the distribution rule of in situ stress in the northeast Sichuan basin and its relationship with fracture. Sixty-seven sets of core samples of 21 Wells from the terrigenous clastic rock formation (Shaximiao, Qianfoya, Xujiahe) and ...
Xinxin Fang, Hong Feng
doaj   +1 more source

Mechanical mechanism of in situ stress ratio limit and its evolution simulation

Frontiers in Earth Science, 2022
In situ stress is a natural phenomenon. According to the Mohr–Coulomb criterion, it is found that when the ratio of principal stress (the ratio of maximum principal stress to minimum principal stress) of crustal rock mass in a certain environment exceeds
Yifei Chen, Yifei Chen, Yongjian Wang, Fuqiong Huang, Long Ma, Changyi Yang, Haoyu Shi   +6 more
doaj   +1 more source

Characteristics of in situ stress of tight oil reservoirs and its influence on petrophysical properties: a case study of Upper Triassic Yanchang Formation in Ordos Basin

Shiyou shiyan dizhi, 2021
The petrophysical properties of tight reservoirs and the state of fluid occurrence are affected by current geostress. In the past, there were few studies on the rock mechanical properties and in situ stress of the Yanchang Formation in the central and ...
Yi GAO, Lifei LIN, Shuai YIN, Guoxiang HU, Rongli MA   +4 more
doaj   +1 more source

In-situ stress analysis in the Chang 7 reservoir of northern Shannxi region

Unconventional Resources
The Shaanbei Chang 7 shale oil reservoir in the Ordos Basin develops vertically with multiple lithologic superimpositions. The interlayer stress of sand-mud-shale thin interbeds is different, and the stress within the small layer is variable, resulting ...
Xiaoli Cui, Xiaoxuan Kou, Shengbin Feng, Yuan You, Wenzhong Ma, Bing Hou   +5 more
doaj   +1 more source

Susceptibility assessment of geological hazards in Shenzhen Town, Ninghai county based on the APH-CF model

Frontiers in Earth Science
IntroductionThis work employs a coupled evaluation model that integrates deterministic coefficients with the Analytic Hierarchy Process to conduct a comprehensive assessment of geological disaster susceptibility in Shenzhen Town, Ninghai County ...
Shuai Han, Ran Li, Ran Li, Ran Li, Shujun Hui, Qiang Sun, Taili Zhang   +6 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

A novel model for calculating in situ stress within deep coal seams considering microstructural characteristics and its application

Meitian dizhi yu kantan
Objective Research on in situ stress serves as a bridge between geological and engineering analyses. Accurate insights into in situ stress regimes are crucial for ensuring engineering efficiency and development benefits. However, microstructures are well
Haifeng ZHAO, Hongwei SHI, Fei XIE, Chengwang WANG, Zongfei WANG, Gaojie CHEN   +5 more
doaj   +1 more source