Zeng, Qiang Shen, Li Yang, Jie
Published in
Environmental Earth Sciences
Coal mining has serious impacts on local environment, including damage to the land and soil by subsidence, damage to ground-water systems through the fracturing and subsiding of overlying rocks, contamination of surface waters with acid mine drainage, and pollution of the atmosphere by release of toxic gases. The damage to ground water and its cons...
Gascuel, Violaine Bédard, Karine Comeau, Félix-Antoine Raymond, Jasmin Malo, Michel
Published in
Geothermal Energy
Anticosti Island is located in the Anticosti sedimentary basin, an Ordovician/Silurian carbonate platform. This platform is mainly composed of limestone and shale with some dolomite and sandstone and reaches up to 5 km depth in the southwest. It overlies a Precambrian basement of the Grenville Province made of magmatic and metamorphic rocks. Like m...
Di Menza, Laurent Nicolas, Jean-Philippe Pellen, Mathieu
Published in
General Relativity and Gravitation
Black hole bombs are usually constructed by surrounding an ergoregion by a mirror. The fields propagating between the event horizon and the mirror are prevented from escaping to infinity and reflected back to the ergoregion, thus undergoing repeated superradiant scattering which leads to a linear instability. We introduce a new construction in whic...
Fu, Yu
Published in
Arabian Journal of Geosciences
A model is constructed for the underground natural gas storages reconstructed from the depleted fractured oil reservoirs, in which the diffusion of molecules and the deformation of medium are taken into consideration. The model is solved by finite difference method and applied to the reconstruction from a depleted bottom water fractured oil reservo...
Babadi, Mohammad Nazemi Kheradmand, Saeid Bae, Choongsik
Published in
International Journal of Automotive Technology
In this paper, the numerical simulation of the diesel and gasoline fuels injection in a constant volume chamber and in a cylinder under the operating conditions of a compression ignition (CI) engine is conducted. The simulation results are compared with the experimental data which derived from fast imaging techniques. In order to check out the poss...
Moustafa, Mahmoud Mohd, Mohd Hafiz Ismail, Ahmad Izani Abdullah, Farah Aini
Published in
Advances in Difference Equations
A fractional-order eco-epidemiological model with disease in the prey population is formulated and analyzed. Mathematical analysis and numerical simulations are performed to clarify the characteristics of the proposed fractional-order model. The existence, uniqueness, non-negativity and boundedness of the solutions are proved. The local and global ...
Xu, Wenlong Wang, Cheng Yuan, Jianming Goh, Weiliang
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
With the increase in the concrete thickness for protection engineering and the development of various novel concrete structures, as an important anti-hard target warhead, the conventional conical shaped charge (CSC) may not be effective against concrete targets. To increase the penetration depth of the CSC on concrete targets, a comparative study b...
Zheng, Lulu Chen, Xiaoping Dou, Hua-Shu Zhang, Wei Zhu, Zuchao Cheng, Xueli
Published in
Journal of Mechanical Science and Technology
The Reynolds averaged Navier-Stokes equations and the shear stress transport k-w turbulence model are employed to simulate the centrifugal pump with or without clearance flows. The simulation results have been compared with the experimental data and good agreement has been achieved. Results show that clearance flow causes a decrease in the characte...
Di Menza, Laurent Nicolas, Jean-Philippe Pellen, Mathieu
Black hole bombs are usually constructed by surrounding an ergoregion by a mirror. The fields propagating between the event horizon and the mirror are prevented from escaping to infinity and reflected back to the ergoregion, thus undergoing repeated superradiant scattering which leads to a linear instability. We introduce a new construction in whic...
Braga, R. Iglesias, R.S. Romio, C. Praeg, D. Miller, D.J. Viana, A. Ketzer, J.M.
The stability of methane hydrates on continental margins worldwide is sensitive to changes in temperature and pressure conditions. It has been shown how gradual increases in bottom water temperatures due to ocean warming over post-glacial timescales can destabilize shallow oceanic hydrate deposits, causing their dissociation and gas release into th...
