Directory of Open Access Books (DOAB)
R. M. Evans (Pastor, Welsh Congregational Church of Big Rock, Illinois),
... R. M. (Pastor, Welsh Congregational Church of Big Rock, Illinois). Application for aid: Big Rock, Illinois, July 25, 1857.
1857 - Gale Group | SAS Part 1
Ying Mu, Caineng Zou, Zhiming Hu, Songqi Pan, Xianggang Duan, Yuncong Gao, Yongbing Tang,
... large-scale hydrogen storage method. The hydrogen-water-rock interaction during the long-term storage of hydrogen ... study focuses on the influence of hydrogen-water-rock interaction on the micromechanical properties and mineral content of different rocks in the process of UHS, compares the differences ... of gas medium and water content characteristics on rock properties, and then evaluates the best hydrogen storage conditions. Hydrogen-water-rock interaction can significantly improve the microscopic mechanical properties ...
Tópico(s): Hydraulic Fracturing and Reservoir Analysis
2024 - Elsevier BV | International Journal of Hydrogen Energy
... Vail; March 28, 1848 to Mr. Lewis Tappan; Rock Praire, Rock County, Wisconsin.
1848 - Gale Group | SAS Part 1
Jinshuai Zhao, Shuqian Duan, Bingrui Chen, Lei Li, Ben‐Guo He, Pengxiang Li, Guofeng Liu,
... and accurate identification of the failure mechanism of rock masses is of great significance for achieving a ... capture the excavation-induced microfracture signals of intact rock masses and rock masses with weak interlayer zones (WIZs). To clarify the mechanical mechanisms controlling the surrounding rock failure modes, the moment tensor inversion method is ... mechanism solutions (strike, dip and rake) of the rock masses. The spatial distribution of the MS events shows that the excavation-induced microfractures of intact rock masses are concentrated in the working face of ...
Tópico(s): Dam Engineering and Safety
2024 - Elsevier BV | Soil Dynamics and Earthquake Engineering
Directory of Open Access Journals (DOAJ)
... Fourth Year of Kansei (1792), and a Rare Rock Called "Osugata Iwa" Stands in the Background. The Rock Is Seen in the Center of the Photo ...
0000 - Gale Group | NCCO Photography
Guodong Zhang, Sixiang Ling, Zixing Liao, Chengjun Xiao, Xiyong Wu,
Red-bed soft rock is a common type of bedrock with the characteristics of water softening and disintegration into particles. Micro mechanical properties ... to study the durability of red-bed soft rocks, and two-dimensional images of disintegration particles with ... established, and the sensitivity of shape parameters to rock durability were analyzed. The evolution behavior and durability differences of rock disintegration was better measured using the disintegration ratio ... decreasing particle size. Correlation between surface roughness and rock durability suggests that a higher roughness will enhance ...
Tópico(s): Geotechnical Engineering and Analysis
2024 - Elsevier BV | Construction and Building Materials
... Geological Arch Formed by Erosion. The Layered Sedimentary Rock of This Island Teaches Us Much about the ...
0000 - Gale Group | NCCO Photography
Jianxing Chen, Zheming Zhu, Lei Zhou, Leijun Ma, Haohan Wang, Meng Wang,
... investigates the tensile failure mechanism at the concrete-rock interface and proposes a concrete-rock interface tensile mechanical constitutive model considering the degree of rock surface indentation and surface morphology. The Brazilian disc ... results demonstrate that the depth and width of rock surface indentations collectively characterize the indentation angle θ, ... interface. Specifically, when 0° ≤ θ < 45°, the concrete-rock interface exhibits a tension-shear stress state, where ... the interface leading to the debonding of the rock and concrete. When 45° ≤ θ ≤ 90°, the concrete- ...
Tópico(s): Innovations in Concrete and Construction Materials
2024 - Elsevier BV | Composite Structures
Springer Link
Picture Postcard of Tateiwa Rock on the Coast near Mogi. Mogi Was a Popular Resort among Foreigners. The Prefectural Highway Opened in 1885 and the ...
0000 - Gale Group | NCCO Photography
Kun Du, Xiyao Luo, Minghui Liu, Xiling Liu, Jian Zhou,
... investigate the crack evolution and failure mechanism of rocks by conducting uniaxial compression tests (UCT) and Brazilian indirect tension tests (BITT) using four categories of rock specimens. Real-time acoustic emission (AE) signals were detected and recorded during rock failure processes by an AE monitoring system. The ... the stress thresholds. Furthermore, the transition trend of rock crack types was analyzed based on RA-AF ... proposed, and the crack boundaries of the four rocks were determined. Additionally, the tension to shear ratios ...
Tópico(s): Tunneling and
2024 - Elsevier BV | Engineering Fracture Mechanics
Picture Postcard of Tateiwa Rock on the Coast near Mogi, Taken from a Angle Different to #5265. Mogi Was a Popular Resort among Foreigners. The ...
0000 - Gale Group | NCCO Photography
Chenglei Du, Quansheng Liu, Yiming Lei, He Liu, You Lü, Haitao Jiang, Shouming Xiang, Yang Yanqiu,
The anisotropic behavior of layered surrounding rock has always been a hot topic in underground engineering. This paper aims to investigate the deformation characteristics and crack evolution process of layered surrounding rock under excavation unloading conditions using the three-dimensional ( ... splitting specimens and uniaxial compression specimens of layered rocks are numerically simulated to study the strength and deformation anisotropy characteristics of rock specimens with different bedding dip angles. The results ...
Tópico(s): Landslides and related hazards
2024 - Elsevier BV | Tunnelling and Underground Space Technology
Springer Link
Sullivan, John L. (John Langdon), Disbrow, Levi,
... be deposed to promote the formation of a rock-water company, with banking privileges, either by approval ...
0000 - Gale Group | Sabin June 2012
Mengzhen Li, Yanmin Yang, Zhaoyu Peng, Gengnian Liu,
Abstract. Rock glaciers are important hydrological reserves in arid and semi-arid regions. Their activity states can indicate the ... To help further explore the development mechanisms of rock glaciers in semi-arid and humid transition regions, this paper provides a detailed rock glacier inventory of the Guokalariju (also known as ... study area for the first time. Approximately 5057 rock glaciers were identified, covering a total area of ∼404.69 km2. Rock glaciers are unevenly distributed within the three sub- ...
Tópico(s): Arctic and Antarctic ice dynamics
2024 - Copernicus Publications | The cryosphere
Includes bibliographical references. Book.
0000 - Gale Group | Sabin
Zongze Li, Yanfei Kang, Jinyang Fan, Marion Fourmeau, Jie Chen, Deyi Jiang, Daniel Nélias,
Salt rock is characterized by a low porosity, low permeability and self-healing ability, and it is one of ... Studying the healing of macroscopic cracks in salt rock under different conditions is important for ensuring the stability of the rock surrounding a salt cavern. To evaluate the healing ability and effect of cracks in salt rock at the macroscale, two tests were designed to directly assess the healing ability of salt rock by analyzing the tensile strength and permeability recovery ... microstructure of the healed macroscopic fractures in salt rock was observed using scanning electron microscopy (SEM), and ...
Tópico(s): Dam Engineering and Safety
2024 - Elsevier BV | Engineering Geology
Signed (p. 14): I.O. Wilkinson [and 9 others], committee. Book.
0000 - Gale Group | Sabin
Feng Huang, Yufei Liu, Ji‐Feng Xu, Fang Liu, Mingda Lv, Yunchuan Zeng, Zhaofeng Zhang,
... the petrogenesis of the mantle- and crust-derived rocks. Individual non-traditional isotopes in continental basalts are ... isotopic data for the Miocene post-collisional magmatic rocks including ultrapotassic, potassic, and adakitic rocks from the Lhasa Terrane in southern Tibet. The ultrapotassic rocks exhibit slightly lower δ26Mg (−0.28 ± 0.07‰, ... Al2O3 and CaO/TiO2 ratios of the ultrapotassic rocks are typical characteristics of carbonate metasomatism, suggesting that ... carbonate in the mantle source. Additionally, these ultrapotassic rocks display δ56Fe values (0.026–0.163‰, 2SD, ...
Tópico(s): earthquake and tectonic studies
2024 - Elsevier BV | Chemical Geology
Yongsheng Tan, Qi Li, Liang Xu, Chikezie Chimere Onyekwena, Tao Yu, Lifeng Xu,
... storage capacity by altering wettability during CO2–brine–rock interactions, which significantly impacts the CO2 residual trapping ... However, the effect of nanoparticles on CO2–brine–rock interactions in carbonate formations is poorly understood. Therefore, ... impact of SiO2 nanoparticles (SNPs) on CO2–brine–rock interactions was evaluated under supercritical CO2 conditions (60 ° ... The results indicated that (a) both CO2–brine–rock interactions and SNPs–CO2–brine–rock interactions can alter the wettability of carbonate rock ...
Tópico(s): Hydrocarbon exploration and reservoir analysis
2024 - American Chemical Society | Energy & Fuels