In order to investigate the surface deformation caused by coal mining and to reduce environmental damage, more accurate information of dynamic subsidence basins, caused by coal mining, is needed. Based on theological ...In order to investigate the surface deformation caused by coal mining and to reduce environmental damage, more accurate information of dynamic subsidence basins, caused by coal mining, is needed. Based on theological theory, we discuss surface deformation mechanism of dynamic subsidence on the assumption that both the roof and the coal seam are visco-elastic media, put forward the idea that the principle of surface deformation is similar to that of roofs, except for their parameters. Therefore, a surface deforma- tion equation can be obtained, given the equation of the roof deformation derived.from using a HIM rhe- ological model. In the end, we apply the equation of surface deformation as a practical subsidence prediction in a coal mine. Given the theologic properties of a rock mass, the results of our research of a dynamic subsidence basin can predict the development of surface deformation as a function of time, which is more important than the ultimate subsidence itself. The results indicate that using rheological theory to calculate the deformation of a dynamic subsidence basin is suitable and provides some reference for surface deformation of dynamic subsidence basins.展开更多
A phenomenological model for dispersed systems which exhibit complex theological behaviour such as shear and time-dependent viscosity, yield stress, and elasticity is proposed. The model extends the Quemeda model to d...A phenomenological model for dispersed systems which exhibit complex theological behaviour such as shear and time-dependent viscosity, yield stress, and elasticity is proposed. The model extends the Quemeda model to describe the viscosity function with a structural parameter λ which varies according to differ- ent kinetic orders of particle aggregation and segregation. The transient stress response is obtained by solving an instantaneous Maxwell model with an assumed shear modulus function G of the same form as the viscosity function η. Accuracy of the proposed model is verified experimentally with the results obtained for two oil (creosote)/water emulsions. The model that gives the best fit of experimental data appears to be the one with kinetic orders n = m = 2.展开更多
Tensta-Rinkeby and Skarholmen are two suburbs of Stockholm which are characterized of a multi-ethnic and multi-religious population created by immigration during the last decades. Many of those living in Tensta-Rinkeb...Tensta-Rinkeby and Skarholmen are two suburbs of Stockholm which are characterized of a multi-ethnic and multi-religious population created by immigration during the last decades. Many of those living in Tensta-Rinkeby and Skaholmen are Muslims, and others are Christians-native Protestants or Catholic and Orthodox immigrants. This article presents data from interviews with Muslim and Christian informants, leaders as well as lay persons, on how they look upon each other across religious borders. The information is classified and interpreted according to models used by scholars in theology of religion. Some informants give vague answers due to the fact that issues of assessing beliefs of others are seldom treated in their churches and mosques. Articulated opinions can be classified from a replacement to an acceptance-model with a bulk of proponents for a fulfillment-model in the middle. Finally the article discusses the importance of how religious actors teach and act in multi-religious milieus.展开更多
基金Financial support for this research, provided by the National Natural Science Foundation of China (Nos.50804020 and 50974070)the Doctor Initial Fund of Liaoning Provincial Science and Technology Department (No.20081103)the Key Laboratory Fund of Liaoning Province (No. LS2010074)
文摘In order to investigate the surface deformation caused by coal mining and to reduce environmental damage, more accurate information of dynamic subsidence basins, caused by coal mining, is needed. Based on theological theory, we discuss surface deformation mechanism of dynamic subsidence on the assumption that both the roof and the coal seam are visco-elastic media, put forward the idea that the principle of surface deformation is similar to that of roofs, except for their parameters. Therefore, a surface deforma- tion equation can be obtained, given the equation of the roof deformation derived.from using a HIM rhe- ological model. In the end, we apply the equation of surface deformation as a practical subsidence prediction in a coal mine. Given the theologic properties of a rock mass, the results of our research of a dynamic subsidence basin can predict the development of surface deformation as a function of time, which is more important than the ultimate subsidence itself. The results indicate that using rheological theory to calculate the deformation of a dynamic subsidence basin is suitable and provides some reference for surface deformation of dynamic subsidence basins.
文摘A phenomenological model for dispersed systems which exhibit complex theological behaviour such as shear and time-dependent viscosity, yield stress, and elasticity is proposed. The model extends the Quemeda model to describe the viscosity function with a structural parameter λ which varies according to differ- ent kinetic orders of particle aggregation and segregation. The transient stress response is obtained by solving an instantaneous Maxwell model with an assumed shear modulus function G of the same form as the viscosity function η. Accuracy of the proposed model is verified experimentally with the results obtained for two oil (creosote)/water emulsions. The model that gives the best fit of experimental data appears to be the one with kinetic orders n = m = 2.
文摘Tensta-Rinkeby and Skarholmen are two suburbs of Stockholm which are characterized of a multi-ethnic and multi-religious population created by immigration during the last decades. Many of those living in Tensta-Rinkeby and Skaholmen are Muslims, and others are Christians-native Protestants or Catholic and Orthodox immigrants. This article presents data from interviews with Muslim and Christian informants, leaders as well as lay persons, on how they look upon each other across religious borders. The information is classified and interpreted according to models used by scholars in theology of religion. Some informants give vague answers due to the fact that issues of assessing beliefs of others are seldom treated in their churches and mosques. Articulated opinions can be classified from a replacement to an acceptance-model with a bulk of proponents for a fulfillment-model in the middle. Finally the article discusses the importance of how religious actors teach and act in multi-religious milieus.
