Results 151 to 160 of about 274,214 (382)
Deep Underground Science and Engineering, EarlyView.Fine modeling of a three‐dimensional fracture structure under dynamic loading of coal is carried out. The streamline distribution law of pressure and velocity field in the loading process of the coal specimen is analyzed, the absolute permeability of the coal specimen is calculated, and the feasibility of the pore network model algorithm and finite ...
Huazhe Jiao +6 more
wiley +1 more source
Martian Methyl Chloride. A lesson in uncertainty [PDF]
arXiv, 2013 The MSL Lander Curiosity has recently detected methyl halides coming from heated samples of Martian soil. This is reminiscent of similar findings in the Viking Lander spacecraft. In the 1970s a consensus developed quickly explaining the methyl halides as contamination originating from the spacecraft, and ignoring lines of evidence that the two ...
arxiv
Deep Underground Science and Engineering, EarlyView.A novel analytical method is proposed to evaluate the shear stress effect on the progressive compressive failure and microcrack growth direction in brittle rocks. The shear stress effect on the wing crack growth direction during the progressive compressive failure is determined. The initial crack angle effect on the y‐direction peak stress and the wing
Xiaozhao Li +6 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.A series of water infiltration tests and gas permeability tests were conducted on granite and granite–bentonite samples. According to the results, the interfaces between granite and bentonite and the damaged granite were considered to be the preferentcial pathway for gas migration.
Jiangfeng Liu +5 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.Different failure modes observed in Tishreen tunnel include Floor heave, wall spalling, crashing of slab, and lining convergence reaching the failure limit. Abstract Squeezing phenomena can lead to severe loads in deep tunnels, especially in the presence of a low ratio of surrounding rock strength to overburden pressure.
Mohannad Mhanna, Hussein Hadi Hussein
wiley +1 more source
Laser Induced Fluorescence for In Situ Detection of Typical Heavy Metals in Groundwater
Yankuang ceshiOn-site detection of heavy metals in groundwater is important to quickly evaluate pollution. Laser induced fluorescence (LIF) utilizes specific fluorescent probes to generate/quench fluorescence in the presence of heavy metals, thereby achieving heavy ...
Kang MAO +3 more
doaj +1 more source
Semiquantitative spectrographic analysis and rank correlation in geochemistry [PDF]
, 1956 F.J. Flanagan
openalex +1 more source
Seismic performance of concrete tunnel–sand–pile interaction by the shake table test
Deep Underground Science and Engineering, EarlyView.This research presents the square root sum of squares response of displacements and tunnel moments under the Kobe and Loma Prieta seismic excitations with a peak ground acceleration of 0.05 g for various dry relative densities of local sand in Bangladesh.
Md. Foisal Haque, Mehedi A. Ansary
wiley +1 more source
Molecular Simulation of Resin and the Calculation of Molecular Bond Energy
ACS Omega, 2021 Tian Liang, Zhao-Wen Zhan, Yan-Rong Zou
doaj +1 more source