Coordinated and sustainable development of farmers, agriculture and countryside (FAC) is key to realize the national objective of comprehensively developed well-off society. Since the peaceful liberation of Tibet, out...Coordinated and sustainable development of farmers, agriculture and countryside (FAC) is key to realize the national objective of comprehensively developed well-off society. Since the peaceful liberation of Tibet, outstanding achievements have been made in FAC work. However, compared with East and Middle China, there still exists a big gap. The farmers’ net income per capita in 2001 was 1,404 yuan, 962 yuan lower than the nation’s average. In late 90’s the farmers’ income growth slowed down. Agricultural industrialization is at low level, technologies play a small role in agricultural development, rural infrastructure is weak, the rural grass root organization is much underdeveloped, and construction of towns is behind the other regions of China. Based on the problems of FAC development there, this paper proposes FAC development strategies and measures for accelerating rural development in Tibet.展开更多
With the development of cloud computing, virtualization technology has been widely used in our life. Meanwhile, it became one of the key targets for some attackers. The integrity measurement in virtual machine has bec...With the development of cloud computing, virtualization technology has been widely used in our life. Meanwhile, it became one of the key targets for some attackers. The integrity measurement in virtual machine has become an urgent problem. Some of the existing virtualization platform integrity measurement mechanism introduces the trusted computing technology, according to a trusted chain that the Trusted Platform Module(TPM) established for trusted root to measure the integrity of process in static. But this single chain static measurement cannot ensure the dynamic credible in platform running. To solve the problem that the virtual trusted platform can not guarantee the dynamic credibility, this paper put forward Dynamic Integrity Measurement Model(DIMM) based on virtual Trusted Platform Module(v TPM) which had been implemented with typical virtual machine monitor Xen as an example. DIMM combined with virtual machine introspection and event capture technology to ensure the security of the entire user domain. Based on the framework, this paper put forward Self-modify dynamic measurement strategy which can effectively reduce the measurement frequency and improve the measurement performance. Finally, it is proved that the validity and feasibility of the proposed model with comparison experiments.展开更多
Neuronal regeneration in the peripheral nervous system arises via a synergistic interplay of neurotrophic factors,integrins,cytoskeletal proteins,mechanical cues,cytokines,stem cells,glial cells and astrocytes.
In using risk-informed approaches for ensuring safety of operating NPPs(nuclear power plants),risk importance measures obtained from PRAs(probabilistic risk assessments)of the plants are integral elements of considera...In using risk-informed approaches for ensuring safety of operating NPPs(nuclear power plants),risk importance measures obtained from PRAs(probabilistic risk assessments)of the plants are integral elements of consideration in many cases.In PSA models and applications associated with NPPs the risk importance of a particular feature(e.g.function,system,component,failure mode or operator action)can be,most generally,divided into two categories:importance with respect to risk increase potential and importance with respect to risk decrease potential.The representative of the first category,as used for practical purposes,is RAW(risk achievement worth).Representative of the second category,as mentioned in consideration of risk importance,is RRW(risk reduction worth).It can be shown that the two risk importance measures,RAW and RRW,are dependent on each other.The only parameter in this mutual dependency is probability of failure of the considered feature.The paper discusses the relation between RAW and RRW and some of its implications,including those on the general strategies for the reduction of risk imposed for the operation of the considered facility.Two general risk reduction strategies which are considered in the discussion are:a)risk reduction by decreasing the failure probability of the considered feature;and b)risk reduction while keeping the failure probability of the considered feature at the same level.Simple examples are provided to illustrate the differences between two strategies and point to main issues and conclusions.展开更多
文摘Coordinated and sustainable development of farmers, agriculture and countryside (FAC) is key to realize the national objective of comprehensively developed well-off society. Since the peaceful liberation of Tibet, outstanding achievements have been made in FAC work. However, compared with East and Middle China, there still exists a big gap. The farmers’ net income per capita in 2001 was 1,404 yuan, 962 yuan lower than the nation’s average. In late 90’s the farmers’ income growth slowed down. Agricultural industrialization is at low level, technologies play a small role in agricultural development, rural infrastructure is weak, the rural grass root organization is much underdeveloped, and construction of towns is behind the other regions of China. Based on the problems of FAC development there, this paper proposes FAC development strategies and measures for accelerating rural development in Tibet.
基金supported by National Natural Science Foundation of China (61170254,61379116), Hebei Natural Science Foundation Project (F2016201244)Hebei Province Science and Technology Research Project of Higher Education (ZD2016043)Hebei Engineering Technology Research Center for IOT Data Acquisition & Processing, North China Insitute of Science and Technology, Hebei 065201,China
文摘With the development of cloud computing, virtualization technology has been widely used in our life. Meanwhile, it became one of the key targets for some attackers. The integrity measurement in virtual machine has become an urgent problem. Some of the existing virtualization platform integrity measurement mechanism introduces the trusted computing technology, according to a trusted chain that the Trusted Platform Module(TPM) established for trusted root to measure the integrity of process in static. But this single chain static measurement cannot ensure the dynamic credible in platform running. To solve the problem that the virtual trusted platform can not guarantee the dynamic credibility, this paper put forward Dynamic Integrity Measurement Model(DIMM) based on virtual Trusted Platform Module(v TPM) which had been implemented with typical virtual machine monitor Xen as an example. DIMM combined with virtual machine introspection and event capture technology to ensure the security of the entire user domain. Based on the framework, this paper put forward Self-modify dynamic measurement strategy which can effectively reduce the measurement frequency and improve the measurement performance. Finally, it is proved that the validity and feasibility of the proposed model with comparison experiments.
基金CSIRO, the ARC and the NHMRC for providing funding that supported this work
文摘Neuronal regeneration in the peripheral nervous system arises via a synergistic interplay of neurotrophic factors,integrins,cytoskeletal proteins,mechanical cues,cytokines,stem cells,glial cells and astrocytes.
文摘In using risk-informed approaches for ensuring safety of operating NPPs(nuclear power plants),risk importance measures obtained from PRAs(probabilistic risk assessments)of the plants are integral elements of consideration in many cases.In PSA models and applications associated with NPPs the risk importance of a particular feature(e.g.function,system,component,failure mode or operator action)can be,most generally,divided into two categories:importance with respect to risk increase potential and importance with respect to risk decrease potential.The representative of the first category,as used for practical purposes,is RAW(risk achievement worth).Representative of the second category,as mentioned in consideration of risk importance,is RRW(risk reduction worth).It can be shown that the two risk importance measures,RAW and RRW,are dependent on each other.The only parameter in this mutual dependency is probability of failure of the considered feature.The paper discusses the relation between RAW and RRW and some of its implications,including those on the general strategies for the reduction of risk imposed for the operation of the considered facility.Two general risk reduction strategies which are considered in the discussion are:a)risk reduction by decreasing the failure probability of the considered feature;and b)risk reduction while keeping the failure probability of the considered feature at the same level.Simple examples are provided to illustrate the differences between two strategies and point to main issues and conclusions.
