A field monitoring program was carried out to record the slope failure process of a landfill with multiple intermediate covering layers.The monitored items include the leachate level,the surface horizontal displacemen...A field monitoring program was carried out to record the slope failure process of a landfill with multiple intermediate covering layers.The monitored items include the leachate level,the surface horizontal displacement and the deep lateral displacement.Based on the monitoring data,analysis was carried out to verify the stability control effects of leachate drainage on the top layer,leachate drainage in different layers,and near-slope leachate drainage.The results show that the maximum slip area is 34 760 m 2 and the average surface horizontal displacement of the 10th platform is 1.77 m.Dumping near the slope is the main reason for the instability.The closer to the dumping area,the greater the degree of slip and the more significantly the leachate level rises.Affected by the intermediate covering layers,the failure mode is the local sliding inside the landfill,and the effect of near-slope leachate drainage on the stability control is obvious.展开更多
In philosophy, justice is a big and yet flexible concept. Thrasymacus sees it as the interest of the stronger party; while the Institute for Creation Research sees it as being legal and ethical, restorative and penal ...In philosophy, justice is a big and yet flexible concept. Thrasymacus sees it as the interest of the stronger party; while the Institute for Creation Research sees it as being legal and ethical, restorative and penal with regards to human rights. Political, legal, religious, social etc., are forms of justice but in this work, the authors are concerned with economic justice. First, the authors say that the Nigerian society is in disorder as a result of entrenched economic injustice partly inspired by its multi-ethnicity and multi-religiousity. The authors therefore, investigate what constitutes economic justice in a nation like Nigeria： Is it equitable distribution of national wealth to individuals, groups, and regions？ Or, is it the distribution of national wealth proportionate to the contributions of individuals, groups, and regions to the national treasury, or still the distribution of national wealth according to political power blocs which fall within regional and ethnic lines？ The aim of this paper is to establish that no matter which definition one adopts, there have been some regions in Nigeria namely Niger Delta or the South-South and southeast regions which account for over 80% of national income in oil revenue but which continue to experience sustained economic injustice in the distribution of national wealth, federal projects, basic amenities etc., since the end of the civil war in 1970. In the societal strata, the wage earners are at the receiving end of government＇s unjust taxation system which enables the high net-worth individuals to pay less and most times evade taxation on their stupendous income. In another scenario, poor citizens are unjustly treated in the sharing of national wealth when compared with the wealthy class for example; they live in areas lacking in basic amenities; they are deprived access to loans to finance their businesses, agricultural project, and other crafts by the premium placed on collateral policies. We therefore conclude that the Nigerian society is lopsided as a result of massive economic injustices in Nigeria at the individual, group, and regional levels. In sum, the authors revisit philosophy＇s role at addressing such societal disorder orchestrated by various economic injustices perpetrated in Nigeria.展开更多
Separation issue is one of the most important problems about cloud computing security. Tenants should be separated from each other based on cloud infrastructure and different users from one tenant should be separated ...Separation issue is one of the most important problems about cloud computing security. Tenants should be separated from each other based on cloud infrastructure and different users from one tenant should be separated from each other with the constraint of security policies. Learning from the notion of trusted cloud computing and trustworthiness in cloud, in this paper, a multi-level authorization separation model is formally described, and a series of rules are proposed to summarize the separation property of this model. The correctness of the rules is proved. Furthermore, based on this model, a tenant separation mechanism is deployed in a real world mixed-critical information system. Performance benchmarks have shown the availability and efficiency of this mechanism.展开更多
To understand implementation of a nationwide sloping farmland soil erosion comprehensive control project during China＇s 12 th Five-Year Plan we used data collection and expert consultation. We selected 24 indexes acr...To understand implementation of a nationwide sloping farmland soil erosion comprehensive control project during China＇s 12 th Five-Year Plan we used data collection and expert consultation. We selected 24 indexes across three aspects including project management, engineering construction and implementation benefit and used AHP-grey correlation analysis methods. We found that the scores for engineering construction were greater than 0.65 in most of the provinces, autonomous regions and municipalities. These scores are high and scores for project management and implementation benefit are between 0.45–0.65; however, overall scores are low. The comprehensive evaluation results are normally distributed. The composite scores for Sichuan, Yunnan and Guizhou are 0.71, 0.68 and 0.68 respectively, indicating that the implementation effects are good. The scores for Jilin and Liaoning are 0.38 and 0.42 respectively, indicating that the implementation effects need improvement. Scores for other provinces are between 0.45–0.65 and the effects are medium. The evaluation results show certain zonal rules spatially and the implementation effect in karst regions of Southwest China is the highest, followed by the purple soil region in Southwest China, Loess Plateau region of Northwest China, earth-rock mountain region of North China and red soil hilly region of South China. The implementation effect in the black soil region of Northeast China suggests that improvement is needed in this region.展开更多
基金The National Basic Research Program of China(973Project)(No.2012CB719800)the National Natural Science Foundation of China(No.41502276)
文摘A field monitoring program was carried out to record the slope failure process of a landfill with multiple intermediate covering layers.The monitored items include the leachate level,the surface horizontal displacement and the deep lateral displacement.Based on the monitoring data,analysis was carried out to verify the stability control effects of leachate drainage on the top layer,leachate drainage in different layers,and near-slope leachate drainage.The results show that the maximum slip area is 34 760 m 2 and the average surface horizontal displacement of the 10th platform is 1.77 m.Dumping near the slope is the main reason for the instability.The closer to the dumping area,the greater the degree of slip and the more significantly the leachate level rises.Affected by the intermediate covering layers,the failure mode is the local sliding inside the landfill,and the effect of near-slope leachate drainage on the stability control is obvious.
文摘In philosophy, justice is a big and yet flexible concept. Thrasymacus sees it as the interest of the stronger party; while the Institute for Creation Research sees it as being legal and ethical, restorative and penal with regards to human rights. Political, legal, religious, social etc., are forms of justice but in this work, the authors are concerned with economic justice. First, the authors say that the Nigerian society is in disorder as a result of entrenched economic injustice partly inspired by its multi-ethnicity and multi-religiousity. The authors therefore, investigate what constitutes economic justice in a nation like Nigeria： Is it equitable distribution of national wealth to individuals, groups, and regions？ Or, is it the distribution of national wealth proportionate to the contributions of individuals, groups, and regions to the national treasury, or still the distribution of national wealth according to political power blocs which fall within regional and ethnic lines？ The aim of this paper is to establish that no matter which definition one adopts, there have been some regions in Nigeria namely Niger Delta or the South-South and southeast regions which account for over 80% of national income in oil revenue but which continue to experience sustained economic injustice in the distribution of national wealth, federal projects, basic amenities etc., since the end of the civil war in 1970. In the societal strata, the wage earners are at the receiving end of government＇s unjust taxation system which enables the high net-worth individuals to pay less and most times evade taxation on their stupendous income. In another scenario, poor citizens are unjustly treated in the sharing of national wealth when compared with the wealthy class for example; they live in areas lacking in basic amenities; they are deprived access to loans to finance their businesses, agricultural project, and other crafts by the premium placed on collateral policies. We therefore conclude that the Nigerian society is lopsided as a result of massive economic injustices in Nigeria at the individual, group, and regional levels. In sum, the authors revisit philosophy＇s role at addressing such societal disorder orchestrated by various economic injustices perpetrated in Nigeria.
基金supported by the Fundamental Research funds for the central Universities of China (No. K15JB00190)the Ph.D. Programs Foundation of Ministry of Education of China (No. 20120009120010)the Program for Innovative Research Team in University of Ministry of Education of China (IRT201206)
文摘Separation issue is one of the most important problems about cloud computing security. Tenants should be separated from each other based on cloud infrastructure and different users from one tenant should be separated from each other with the constraint of security policies. Learning from the notion of trusted cloud computing and trustworthiness in cloud, in this paper, a multi-level authorization separation model is formally described, and a series of rules are proposed to summarize the separation property of this model. The correctness of the rules is proved. Furthermore, based on this model, a tenant separation mechanism is deployed in a real world mixed-critical information system. Performance benchmarks have shown the availability and efficiency of this mechanism.
基金National Key Research and Development Program of China(2016YFC0503700)Nationwide Financial Budget Project"Water and soil conservation business"(126216229000150001)
文摘To understand implementation of a nationwide sloping farmland soil erosion comprehensive control project during China＇s 12 th Five-Year Plan we used data collection and expert consultation. We selected 24 indexes across three aspects including project management, engineering construction and implementation benefit and used AHP-grey correlation analysis methods. We found that the scores for engineering construction were greater than 0.65 in most of the provinces, autonomous regions and municipalities. These scores are high and scores for project management and implementation benefit are between 0.45–0.65; however, overall scores are low. The comprehensive evaluation results are normally distributed. The composite scores for Sichuan, Yunnan and Guizhou are 0.71, 0.68 and 0.68 respectively, indicating that the implementation effects are good. The scores for Jilin and Liaoning are 0.38 and 0.42 respectively, indicating that the implementation effects need improvement. Scores for other provinces are between 0.45–0.65 and the effects are medium. The evaluation results show certain zonal rules spatially and the implementation effect in karst regions of Southwest China is the highest, followed by the purple soil region in Southwest China, Loess Plateau region of Northwest China, earth-rock mountain region of North China and red soil hilly region of South China. The implementation effect in the black soil region of Northeast China suggests that improvement is needed in this region.
